shell/ev-view.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2004 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <math.h>
  22 #include <string.h>
  23 #include <gtk/gtkalignment.h>
  24 #include <glib/gi18n.h>
  25 #include <gtk/gtkbindings.h>
  26 #include <gtk/gtkselection.h>
  27 #include <gtk/gtkclipboard.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <libgnomevfs/gnome-vfs-utils.h>
  30
  31 #include "ev-marshal.h"
  32 #include "ev-view.h"
  33 #include "ev-view-private.h"
  34 #include "ev-utils.h"
  35 #include "ev-selection.h"
  36 #include "ev-document-find.h"
  37 #include "ev-document-misc.h"
  38 #include "ev-debug.h"
  39 #include "ev-job-queue.h"
  40 #include "ev-page-cache.h"
  41 #include "ev-pixbuf-cache.h"
  42 #include "ev-tooltip.h"
  43
  44 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  45 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  46 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  47
  48
  49 enum {
  50         PROP_0,
  51         PROP_STATUS,
  52         PROP_FIND_STATUS,
  53         PROP_CONTINUOUS,
  54         PROP_DUAL_PAGE,
  55         PROP_FULLSCREEN,
  56         PROP_PRESENTATION,
  57         PROP_SIZING_MODE,
  58         PROP_ZOOM,
  59         PROP_ROTATION,
  60         PROP_HAS_SELECTION,
  61 };
  62
  63 enum {
  64         SIGNAL_BINDING_ACTIVATED,
  65         SIGNAL_ZOOM_INVALID,
  66         SIGNAL_EXTERNAL_LINK,
  67         SIGNAL_POPUP_MENU,
  68         N_SIGNALS,
  69 };
  70
  71 enum {
  72         TARGET_STRING,
  73         TARGET_TEXT,
  74         TARGET_COMPOUND_TEXT,
  75         TARGET_UTF8_STRING,
  76         TARGET_TEXT_BUFFER_CONTENTS
  77 };
  78
  79 static const GtkTargetEntry targets[] = {
  80         { "STRING", 0, TARGET_STRING },
  81         { "TEXT",   0, TARGET_TEXT },
  82         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  83         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  84 };
  85
  86 static guint signals[N_SIGNALS];
  87
  88 typedef enum {
  89         EV_VIEW_FIND_NEXT,
  90         EV_VIEW_FIND_PREV
  91 } EvViewFindDirection;
  92
  93 #define ZOOM_IN_FACTOR  1.2
  94 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
  95
  96 #define MIN_SCALE 0.05409
  97 #define MAX_SCALE 4.0
  98
  99 #define SCROLL_TIME 150
 100
 101 /*** Scrolling ***/
 102 static void       scroll_to_current_page                     (EvView *view,
 103                                                               GtkOrientation orientation);
 104 static void       ev_view_set_scroll_adjustments             (EvView             *view,
 105                                                               GtkAdjustment      *hadjustment,
 106                                                               GtkAdjustment      *vadjustment);
 107 static void       view_update_range_and_current_page         (EvView             *view);
 108 static void       set_scroll_adjustment                      (EvView             *view,
 109                                                               GtkOrientation      orientation,
 110                                                               GtkAdjustment      *adjustment);
 111 static void       ev_view_set_scroll_adjustments             (EvView             *view,
 112                                                               GtkAdjustment      *hadjustment,
 113                                                               GtkAdjustment      *vadjustment);
 114 static void       add_scroll_binding_keypad                  (GtkBindingSet      *binding_set,
 115                                                               guint               keyval,
 116                                                               GdkModifierType modifiers,
 117                                                               EvScrollType       scroll,
 118                                                               gboolean            horizontal);
 119 static void       ensure_rectangle_is_visible                (EvView             *view,
 120                                                               GdkRectangle       *rect);
 121
 122 /*** Geometry computations ***/
 123 static void       compute_border                             (EvView             *view,
 124                                                               int                 width,
 125                                                               int                 height,
 126                                                               GtkBorder          *border);
 127 static void       get_page_y_offset                          (EvView *view,
 128                                                               int page,
 129                                                               double zoom,
 130                                                               int *y_offset);
 131 static gboolean   get_page_extents                           (EvView             *view,
 132                                                               gint                page,
 133                                                               GdkRectangle       *page_area,
 134                                                               GtkBorder          *border);
 135 static void       view_rect_to_doc_rect                      (EvView             *view,
 136                                                               GdkRectangle       *view_rect,
 137                                                               GdkRectangle       *page_area,
 138                                                               EvRectangle        *doc_rect);
 139 static void       doc_rect_to_view_rect                      (EvView             *view,
 140                                                               int                 page,
 141                                                               EvRectangle        *doc_rect,
 142                                                               GdkRectangle       *view_rect);
 143 static void       find_page_at_location                      (EvView             *view,
 144                                                               gdouble             x,
 145                                                               gdouble             y,
 146                                                               gint               *page,
 147                                                               gint               *x_offset,
 148                                                               gint               *y_offset);
 149 static gboolean  doc_point_to_view_point                     (EvView       *view,
 150                                                               int           page,
 151                                                               EvPoint      *doc_point,
 152                                                               GdkPoint     *view_point);
 153 /*** Hyperrefs ***/
 154 static EvLink *   ev_view_get_link_at_location               (EvView  *view,
 155                                                               gdouble  x,
 156                                                               gdouble  y);
 157 static char*      tip_from_link                              (EvView             *view,
 158                                                               EvLink             *link);
 159 static void       handle_link_over_xy                        (EvView *view,
 160                                                               gint x,
 161                                                               gint y);
 162 /*** GtkWidget implementation ***/
 163 static void       ev_view_size_request_continuous_dual_page  (EvView             *view,
 164                                                               GtkRequisition     *requisition);
 165 static void       ev_view_size_request_continuous            (EvView             *view,
 166                                                               GtkRequisition     *requisition);
 167 static void       ev_view_size_request_dual_page             (EvView             *view,
 168                                                               GtkRequisition     *requisition);
 169 static void       ev_view_size_request_single_page           (EvView             *view,
 170                                                               GtkRequisition     *requisition);
 171 static void       ev_view_size_request                       (GtkWidget          *widget,
 172                                                               GtkRequisition     *requisition);
 173 static void       ev_view_size_allocate                      (GtkWidget          *widget,
 174                                                               GtkAllocation      *allocation);
 175 static void       ev_view_realize                            (GtkWidget          *widget);
 176 static gboolean   ev_view_scroll_event                       (GtkWidget          *widget,
 177                                                               GdkEventScroll     *event);
 178 static gboolean   ev_view_expose_event                       (GtkWidget          *widget,
 179                                                               GdkEventExpose     *event);
 180 static gboolean   ev_view_popup_menu                         (GtkWidget          *widget);
 181 static gboolean   ev_view_button_press_event                 (GtkWidget          *widget,
 182                                                               GdkEventButton     *event);
 183 static gboolean   ev_view_motion_notify_event                (GtkWidget          *widget,
 184                                                               GdkEventMotion     *event);
 185 static gboolean   ev_view_button_release_event               (GtkWidget          *widget,
 186                                                               GdkEventButton     *event);
 187 static gboolean   ev_view_enter_notify_event                 (GtkWidget          *widget,
 188                                                               GdkEventCrossing   *event);
 189 static gboolean   ev_view_leave_notify_event                 (GtkWidget          *widget,
 190                                                               GdkEventCrossing   *event);
 191 static void       ev_view_style_set                          (GtkWidget          *widget,
 192                                                               GtkStyle           *old_style);
 193
 194 static AtkObject *ev_view_get_accessible                     (GtkWidget *widget);
 195
 196 /*** Drawing ***/
 197 static guint32    ev_gdk_color_to_rgb                        (const GdkColor     *color);
 198 static void       draw_rubberband                            (GtkWidget          *widget,
 199                                                               GdkWindow          *window,
 200                                                               const GdkRectangle *rect,
 201                                                               guchar              alpha);
 202 static void       highlight_find_results                     (EvView             *view,
 203                                                               int                 page);
 204 static void       draw_one_page                              (EvView             *view,
 205                                                               gint                page,
 206                                                               GdkRectangle       *page_area,
 207                                                               GtkBorder          *border,
 208                                                               GdkRectangle       *expose_area);
 209 static void       draw_loading_text                          (EvView             *view,
 210                                                               GdkRectangle       *page_area,
 211                                                               GdkRectangle       *expose_area);
 212
 213 /*** Callbacks ***/
 214 static void       find_changed_cb                            (EvDocument         *document,
 215                                                               int                 page,
 216                                                               EvView             *view);
 217 static void       job_finished_cb                            (EvPixbufCache      *pixbuf_cache,
 218                                                               EvView             *view);
 219 static void       page_changed_cb                            (EvPageCache        *page_cache,
 220                                                               int                 new_page,
 221                                                               EvView             *view);
 222 static void       on_adjustment_value_changed                (GtkAdjustment      *adjustment,
 223                                                               EvView             *view);
 224
 225 /*** GObject ***/
 226 static void       ev_view_finalize                           (GObject            *object);
 227 static void       ev_view_destroy                            (GtkObject          *object);
 228 static void       ev_view_set_property                       (GObject            *object,
 229                                                               guint               prop_id,
 230                                                               const GValue       *value,
 231                                                               GParamSpec         *pspec);
 232 static void       ev_view_get_property                       (GObject            *object,
 233                                                               guint               prop_id,
 234                                                               GValue             *value,
 235                                                               GParamSpec         *pspec);
 236 static void       ev_view_class_init                         (EvViewClass        *class);
 237 static void       ev_view_init                               (EvView             *view);
 238
 239 /*** Zoom and sizing ***/
 240 static double   zoom_for_size_fit_width                      (int doc_width,
 241                                                               int doc_height,
 242                                                               int target_width,
 243                                                               int target_height,
 244                                                               int vsb_width);
 245 static double   zoom_for_size_fit_height                     (int doc_width,
 246                                                               int doc_height,
 247                                                               int target_width,
 248                                                               int target_height,
 249                                                               int vsb_height);
 250 static double   zoom_for_size_best_fit                       (int doc_width,
 251                                                               int doc_height,
 252                                                               int target_width,
 253                                                               int target_height,
 254                                                               int vsb_width,
 255                                                               int hsb_width);
 256 static void     ev_view_zoom_for_size_presentation           (EvView *view,
 257                                                               int     width,
 258                                                               int     height);
 259 static void     ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
 260                                                                 int     width,
 261                                                                 int     height,
 262                                                                 int     vsb_width,
 263                                                                 int     hsb_height);
 264 static void     ev_view_zoom_for_size_continuous               (EvView *view,
 265                                                                 int     width,
 266                                                                 int     height,
 267                                                                 int     vsb_width,
 268                                                                 int     hsb_height);
 269 static void     ev_view_zoom_for_size_dual_page                (EvView *view,
 270                                                                 int     width,
 271                                                                 int     height,
 272                                                                 int     vsb_width,
 273                                                                 int     hsb_height);
 274 static void     ev_view_zoom_for_size_single_page              (EvView *view,
 275                                                                 int     width,
 276                                                                 int     height,
 277                                                                 int     vsb_width,
 278                                                                 int     hsb_height);
 279 /*** Cursors ***/
 280 static GdkCursor* ev_view_create_invisible_cursor            (void);
 281 static void       ev_view_set_cursor                         (EvView             *view,
 282                                                               EvViewCursor        new_cursor);
 283
 284 /*** Status messages ***/
 285 static void       ev_view_set_status                         (EvView             *view,
 286                                                               const char         *message);
 287 static void       update_find_status_message                 (EvView             *view,
 288                                                               gboolean            this_page);
 289 static void       ev_view_set_find_status                    (EvView             *view,
 290                                                               const char         *message);
 291 /*** Find ***/
 292 static void       jump_to_find_result                        (EvView             *view);
 293 static void       jump_to_find_page                          (EvView             *view,
 294                                                               EvViewFindDirection direction,
 295                                                               gint                shift);
 296
 297 /*** Selection ***/
 298 static void       compute_selections                         (EvView             *view,
 299                                                               GdkPoint           *start,
 300                                                               GdkPoint           *stop);
 301 static void       clear_selection                            (EvView             *view);
 302 static void       selection_free                             (EvViewSelection    *selection);
 303 static char*      get_selected_text                          (EvView             *ev_view);
 304 static void       ev_view_primary_get_cb                     (GtkClipboard       *clipboard,
 305                                                               GtkSelectionData   *selection_data,
 306                                                               guint               info,
 307                                                               gpointer            data);
 308 static void       ev_view_primary_clear_cb                   (GtkClipboard       *clipboard,
 309                                                               gpointer            data);
 310 static void       ev_view_update_primary_selection           (EvView             *ev_view);
 311
 312
 313 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
 314
 315 static void
 316 scroll_to_current_page (EvView *view, GtkOrientation orientation)
 317 {
 318         GdkPoint view_point;
 319
 320         if (view->document == NULL) {
 321                 return;
 322         }
 323
 324         doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point);
 325
 326         if (orientation == GTK_ORIENTATION_VERTICAL) {
 327                 view->pending_point.y = 0;
 328         } else {
 329                 view->pending_point.x = 0;
 330         }
 331
 332         if (orientation == GTK_ORIENTATION_VERTICAL) {
 333                 if (view->continuous) {
 334                         gtk_adjustment_clamp_page (view->vadjustment,
 335                                                    view_point.y - view->spacing / 2,
 336                                                    view_point.y + view->vadjustment->page_size);
 337                 } else {
 338                         gtk_adjustment_set_value (view->vadjustment,
 339                                                   CLAMP (view_point.y,
 340                                                   view->vadjustment->lower,
 341                                                   view->vadjustment->upper -
 342                                                   view->vadjustment->page_size));
 343                 }
 344         } else {
 345                 if (view->dual_page) {
 346                         gtk_adjustment_clamp_page (view->hadjustment,
 347                                                    view_point.x,
 348                                                    view_point.x + view->hadjustment->page_size);
 349                 } else {
 350                         gtk_adjustment_set_value (view->hadjustment,
 351                                                   CLAMP (view_point.x,
 352                                                   view->hadjustment->lower,
 353                                                   view->hadjustment->upper -
 354                                                   view->hadjustment->page_size));
 355                 }
 356         }
 357 }
 358
 359 static void
 360 view_set_adjustment_values (EvView         *view,
 361                             GtkOrientation  orientation)
 362 {
 363         GtkWidget *widget = GTK_WIDGET (view);
 364         GtkAdjustment *adjustment;
 365         int requisition;
 366         int allocation;
 367
 368         double factor;
 369         gint new_value;
 370
 371         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 372                 requisition = widget->requisition.width;
 373                 allocation = widget->allocation.width;
 374                 adjustment = view->hadjustment;
 375         } else {
 376                 requisition = widget->requisition.height;
 377                 allocation = widget->allocation.height;
 378                 adjustment = view->vadjustment;
 379         }
 380
 381         if (!adjustment)
 382                 return;
 383
 384         factor = 1.0;
 385         switch (view->pending_scroll) {
 386                 case SCROLL_TO_KEEP_POSITION:
 387                         factor = (adjustment->value) / adjustment->upper;
 388                         break;
 389                 case SCROLL_TO_PAGE_POSITION:
 390                         break;
 391                 case SCROLL_TO_CENTER:
 392                         factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper;
 393                         break;
 394         }
 395
 396         adjustment->page_size = allocation;
 397         adjustment->step_increment = allocation * 0.1;
 398         adjustment->page_increment = allocation * 0.9;
 399         adjustment->lower = 0;
 400         adjustment->upper = MAX (allocation, requisition);
 401
 402         /*
 403          * We add 0.5 to the values before to average out our rounding errors.
 404          */
 405         switch (view->pending_scroll) {
 406                 case SCROLL_TO_KEEP_POSITION:
 407                         new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size);
 408                         gtk_adjustment_set_value (adjustment, (int)new_value);
 409                         break;
 410                 case SCROLL_TO_PAGE_POSITION:
 411                         scroll_to_current_page (view, orientation);
 412                         break;
 413                 case SCROLL_TO_CENTER:
 414                         new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5,
 415                                            0, adjustment->upper - adjustment->page_size);
 416                         gtk_adjustment_set_value (adjustment, (int)new_value);
 417                         break;
 418         }
 419
 420         gtk_adjustment_changed (adjustment);
 421 }
 422
 423 static void
 424 view_update_range_and_current_page (EvView *view)
 425 {
 426         gint current_page;
 427
 428         if (view->pending_scroll != SCROLL_TO_KEEP_POSITION)
 429                 return;
 430
 431         /* Presentation trumps all other modes */
 432         if (view->presentation) {
 433                 view->start_page = view->current_page;
 434                 view->end_page = view->current_page;
 435         } else if (view->continuous) {
 436                 GdkRectangle current_area, unused, page_area;
 437                 GtkBorder border;
 438                 gboolean found = FALSE;
 439                 int i;
 440
 441                 if (!(view->vadjustment && view->hadjustment))
 442                         return;
 443
 444                 current_area.x = view->hadjustment->value;
 445                 current_area.width = view->hadjustment->upper;
 446                 current_area.y = view->vadjustment->value;
 447                 current_area.height = view->vadjustment->page_size;
 448
 449                 for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) {
 450
 451                         get_page_extents (view, i, &page_area, &border);
 452
 453                         if (gdk_rectangle_intersect (&current_area, &page_area, &unused)) {
 454                                 if (! found) {
 455                                         view->start_page = i;
 456                                         found = TRUE;
 457
 458                                 }
 459                                 view->end_page = i;
 460                         } else if (found) {
 461                                 break;
 462                         }
 463                 }
 464
 465         } else {
 466                 if (view->dual_page) {
 467                         if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) {
 468                                 view->start_page = view->current_page;
 469                                 if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache))
 470                                         view->end_page = view->start_page + 1;
 471                                 else
 472                                         view->end_page = view->start_page;
 473                         } else {
 474                                 if (view->current_page < 1)
 475                                         view->start_page = view->current_page;
 476                                 else
 477                                         view->start_page = view->current_page - 1;
 478                                 view->end_page = view->current_page;
 479                         }
 480                 } else {
 481                         view->start_page = view->current_page;
 482                         view->end_page = view->current_page;
 483                 }
 484
 485         }
 486
 487         current_page = ev_page_cache_get_current_page (view->page_cache);
 488
 489         if (current_page < view->start_page || current_page > view->end_page) {
 490                 view->current_page = view->start_page;
 491                 ev_page_cache_set_current_page (view->page_cache, view->start_page);
 492         }
 493
 494         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 495                                         view->start_page,
 496                                         view->end_page,
 497                                         view->rotation,
 498                                         view->scale,
 499                                         view->selection_info.selections);
 500 }
 501
 502 static void
 503 set_scroll_adjustment (EvView *view,
 504                        GtkOrientation  orientation,
 505                        GtkAdjustment  *adjustment)
 506 {
 507         GtkAdjustment **to_set;
 508
 509         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 510                 to_set = &view->hadjustment;
 511         else
 512                 to_set = &view->vadjustment;
 513
 514         if (*to_set != adjustment) {
 515                 if (*to_set) {
 516                         g_signal_handlers_disconnect_by_func (*to_set,
 517                                                               (gpointer) on_adjustment_value_changed,
 518                                                               view);
 519                         g_object_unref (*to_set);
 520                 }
 521
 522                 *to_set = adjustment;
 523                 view_set_adjustment_values (view, orientation);
 524
 525                 if (*to_set) {
 526                         g_object_ref (*to_set);
 527                         g_signal_connect (*to_set, "value_changed",
 528                                           G_CALLBACK (on_adjustment_value_changed), view);
 529                 }
 530         }
 531 }
 532
 533 static void
 534 ev_view_set_scroll_adjustments (EvView *view,
 535                                 GtkAdjustment  *hadjustment,
 536                                 GtkAdjustment  *vadjustment)
 537 {
 538         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 539         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 540
 541         on_adjustment_value_changed (NULL, view);
 542 }
 543
 544 static void
 545 add_scroll_binding_keypad (GtkBindingSet  *binding_set,
 546                            guint           keyval,
 547                            GdkModifierType modifiers,
 548                            EvScrollType    scroll,
 549                            gboolean        horizontal)
 550 {
 551   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 552
 553   gtk_binding_entry_add_signal (binding_set, keyval, modifiers,
 554                                 "binding_activated", 2,
 555                                 EV_TYPE_SCROLL_TYPE, scroll,
 556                                 G_TYPE_BOOLEAN, horizontal);
 557   gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers,
 558                                 "binding_activated", 2,
 559                                 EV_TYPE_SCROLL_TYPE, scroll,
 560                                 G_TYPE_BOOLEAN, horizontal);
 561 }
 562
 563 void
 564 ev_view_scroll (EvView        *view,
 565                 EvScrollType   scroll,
 566                 gboolean horizontal)
 567 {
 568         GtkAdjustment *adjustment;
 569         double value, increment;
 570         gboolean first_page = FALSE;
 571         gboolean last_page = FALSE;
 572
 573         view->jump_to_find_result = FALSE;
 574
 575         if (view->presentation) {
 576                 switch (scroll) {
 577                         case EV_SCROLL_PAGE_BACKWARD:
 578                         case EV_SCROLL_STEP_BACKWARD:
 579                                 ev_view_previous_page (view);
 580                                 break;
 581                         case EV_SCROLL_PAGE_FORWARD:
 582                         case EV_SCROLL_STEP_FORWARD:
 583                                 ev_view_next_page (view);
 584                                 break;
 585                         default:
 586                                 break;
 587                 }
 588                 return;
 589         }
 590
 591         /* Assign values for increment and vertical adjustment */
 592         adjustment = horizontal ? view->hadjustment : view->vadjustment;
 593         increment = adjustment->page_size * 0.75;
 594         value = adjustment->value;
 595
 596         /* Assign boolean for first and last page */
 597         if (view->current_page == 0)
 598                 first_page = TRUE;
 599         if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
 600                 last_page = TRUE;
 601
 602         switch (scroll) {
 603                 case EV_SCROLL_PAGE_BACKWARD:
 604                         /* Do not jump backwards if at the first page */
 605                         if (value == (adjustment->lower) && first_page) {
 606                                 /* Do nothing */
 607                                 /* At the top of a page, assign the upper bound limit of previous page */
 608                         } else if (value == (adjustment->lower)) {
 609                                 value = adjustment->upper - adjustment->page_size;
 610                                 ev_view_previous_page (view);
 611                                 /* Jump to the top */
 612                         } else {
 613                                 value = MAX (value - increment, adjustment->lower);
 614                         }
 615                         break;
 616                 case EV_SCROLL_PAGE_FORWARD:
 617                         /* Do not jump forward if at the last page */
 618                         if (value == (adjustment->upper - adjustment->page_size) && last_page) {
 619                                 /* Do nothing */
 620                         /* At the bottom of a page, assign the lower bound limit of next page */
 621                         } else if (value == (adjustment->upper - adjustment->page_size)) {
 622                                 value = 0;
 623                                 ev_view_next_page (view);
 624                         /* Jump to the bottom */
 625                         } else {
 626                                 value = MIN (value + increment, adjustment->upper - adjustment->page_size);
 627                         }
 628                         break;
 629                 case EV_SCROLL_STEP_BACKWARD:
 630                         value -= adjustment->step_increment;
 631                         break;
 632                 case EV_SCROLL_STEP_FORWARD:
 633                         value += adjustment->step_increment;
 634                         break;
 635                 case EV_SCROLL_STEP_DOWN:
 636                         value -= adjustment->step_increment / 10;
 637                         break;
 638                 case EV_SCROLL_STEP_UP:
 639                         value += adjustment->step_increment / 10;
 640                         break;
 641                 default:
 642                         break;
 643         }
 644
 645         value = CLAMP (value, adjustment->lower,
 646                        adjustment->upper - adjustment->page_size);
 647
 648         gtk_adjustment_set_value (adjustment, value);
 649
 650 }
 651
 652 #define MARGIN 5
 653
 654 static void
 655 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
 656 {
 657         GtkWidget *widget = GTK_WIDGET (view);
 658         GtkAdjustment *adjustment;
 659         int value;
 660
 661         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
 662
 663         adjustment = view->vadjustment;
 664
 665         if (rect->y < adjustment->value) {
 666                 value = MAX (adjustment->lower, rect->y - MARGIN);
 667                 gtk_adjustment_set_value (view->vadjustment, value);
 668         } else if (rect->y + rect->height >
 669                    adjustment->value + widget->allocation.height) {
 670                 value = MIN (adjustment->upper, rect->y + rect->height -
 671                              widget->allocation.height + MARGIN);
 672                 gtk_adjustment_set_value (view->vadjustment, value);
 673         }
 674
 675         adjustment = view->hadjustment;
 676
 677         if (rect->x < adjustment->value) {
 678                 value = MAX (adjustment->lower, rect->x - MARGIN);
 679                 gtk_adjustment_set_value (view->hadjustment, value);
 680         } else if (rect->x + rect->height >
 681                    adjustment->value + widget->allocation.width) {
 682                 value = MIN (adjustment->upper, rect->x + rect->width -
 683                              widget->allocation.width + MARGIN);
 684                 gtk_adjustment_set_value (view->hadjustment, value);
 685         }
 686 }
 687
 688 /*** Geometry computations ***/
 689
 690 static void
 691 compute_border (EvView *view, int width, int height, GtkBorder *border)
 692 {
 693         if (view->presentation) {
 694                 border->left = 0;
 695                 border->right = 0;
 696                 border->top = 0;
 697                 border->bottom = 0;
 698         } else {
 699                 ev_document_misc_get_page_border_size (width, height, border);
 700         }
 701 }
 702
 703 static void
 704 get_page_y_offset (EvView *view, int page, double zoom, int *y_offset)
 705 {
 706         int max_width, offset;
 707         GtkBorder border;
 708
 709         g_return_if_fail (y_offset != NULL);
 710
 711         ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width);
 712
 713         compute_border (view, max_width, max_width, &border);
 714
 715         if (view->dual_page) {
 716                 ev_page_cache_get_height_to_page (view->page_cache, page,
 717                                                   view->rotation, zoom, NULL, &offset);
 718                 offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom);
 719         } else {
 720                 ev_page_cache_get_height_to_page (view->page_cache, page,
 721                                                   view->rotation, zoom, &offset, NULL);
 722                 offset += (page + 1) * view->spacing + page * (border.top + border.bottom);
 723         }
 724
 725         *y_offset = offset;
 726         return;
 727 }
 728
 729 static gboolean
 730 get_page_extents (EvView       *view,
 731                   gint          page,
 732                   GdkRectangle *page_area,
 733                   GtkBorder    *border)
 734 {
 735         GtkWidget *widget;
 736         int width, height;
 737
 738         widget = GTK_WIDGET (view);
 739
 740         /* Get the size of the page */
 741         ev_page_cache_get_size (view->page_cache, page,
 742                                 view->rotation,
 743                                 view->scale,
 744                                 &width, &height);
 745         compute_border (view, width, height, border);
 746         page_area->width = width + border->left + border->right;
 747         page_area->height = height + border->top + border->bottom;
 748
 749         if (view->presentation) {
 750                 page_area->x = (MAX (0, widget->allocation.width - width))/2;
 751                 page_area->y = (MAX (0, widget->allocation.height - height))/2;
 752         } else if (view->continuous) {
 753                 gint max_width;
 754                 gint x, y;
 755
 756                 ev_page_cache_get_max_width (view->page_cache, view->rotation,
 757                                              view->scale, &max_width);
 758                 max_width = max_width + border->left + border->right;
 759                 /* Get the location of the bounding box */
 760                 if (view->dual_page) {
 761                         x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing);
 762                         x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2;
 763                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 764                                 x = x + (max_width - width - border->left - border->right);
 765                 } else {
 766                         x = view->spacing;
 767                         x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2;
 768                 }
 769
 770                 get_page_y_offset (view, page, view->scale, &y);
 771
 772                 page_area->x = x;
 773                 page_area->y = y;
 774         } else {
 775                 gint x, y;
 776                 if (view->dual_page) {
 777                         gint width_2, height_2;
 778                         gint max_width = width;
 779                         gint max_height = height;
 780                         GtkBorder overall_border;
 781                         gint other_page;
 782
 783                         other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1;
 784
 785                         /* First, we get the bounding box of the two pages */
 786                         if (other_page < ev_page_cache_get_n_pages (view->page_cache)
 787                             && (0 <= other_page)) {
 788                                 ev_page_cache_get_size (view->page_cache,
 789                                                         other_page,
 790                                                         view->rotation,
 791                                                         view->scale,
 792                                                         &width_2, &height_2);
 793                                 if (width_2 > width)
 794                                         max_width = width_2;
 795                                 if (height_2 > height)
 796                                         max_height = height_2;
 797                         }
 798                         compute_border (view, max_width, max_height, &overall_border);
 799
 800                         /* Find the offsets */
 801                         x = view->spacing;
 802                         y = view->spacing;
 803
 804                         /* Adjust for being the left or right page */
 805                         if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache))
 806                                 x = x + max_width - width;
 807                         else
 808                                 x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
 809
 810                         y = y + (max_height - height)/2;
 811
 812                         /* Adjust for extra allocation */
 813                         x = x + MAX (0, widget->allocation.width -
 814                                      ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
 815                         y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
 816                 } else {
 817                         x = view->spacing;
 818                         y = view->spacing;
 819
 820                         /* Adjust for extra allocation */
 821                         x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2;
 822                         y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom +  view->spacing * 2))/2;
 823                 }
 824
 825                 page_area->x = x;
 826                 page_area->y = y;
 827         }
 828
 829         return TRUE;
 830 }
 831
 832 static void
 833 view_point_to_doc_point (EvView *view,
 834                          GdkPoint *view_point,
 835                          GdkRectangle *page_area,
 836                          double  *doc_point_x,
 837                          double  *doc_point_y)
 838 {
 839         *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
 840         *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
 841 }
 842
 843 static void
 844 view_rect_to_doc_rect (EvView *view,
 845                        GdkRectangle *view_rect,
 846                        GdkRectangle *page_area,
 847                        EvRectangle  *doc_rect)
 848 {
 849         doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
 850         doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
 851         doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
 852         doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
 853 }
 854
 855 static gboolean
 856 doc_point_to_view_point (EvView       *view,
 857                          int           page,
 858                          EvPoint      *doc_point,
 859                          GdkPoint     *view_point)
 860 {
 861         GdkRectangle page_area;
 862         GtkBorder border;
 863         double x, y, view_x, view_y;
 864         int width, height;
 865
 866         ev_page_cache_get_size (view->page_cache, page,
 867                                 view->rotation,
 868                                 1.0,
 869                                 &width, &height);
 870
 871         if (view->rotation == 0) {
 872                 x = doc_point->x;
 873                 y = doc_point->y;
 874         } else if (view->rotation == 90) {
 875                 x = width - doc_point->y;
 876                 y = doc_point->x;
 877         } else if (view->rotation == 180) {
 878                 x = width - doc_point->x;
 879                 y = height - doc_point->y;
 880         } else if (view->rotation == 270) {
 881                 x = doc_point->y;
 882                 y = height - doc_point->x;
 883         } else {
 884                 g_assert_not_reached ();
 885         }
 886
 887         get_page_extents (view, page, &page_area, &border);
 888
 889         view_x = x * view->scale;
 890         view_y = y * view->scale;
 891         view_point->x = view_x + page_area.x;
 892         view_point->y = view_y + page_area.y;
 893
 894         return (view_x > 0 && view_x <= page_area.width &&
 895                 view_y > 0 && view_y <= page_area.height);
 896 }
 897
 898 static void
 899 doc_rect_to_view_rect (EvView       *view,
 900                        int           page,
 901                        EvRectangle  *doc_rect,
 902                        GdkRectangle *view_rect)
 903 {
 904         GdkRectangle page_area;
 905         GtkBorder border;
 906         double x, y, w, h;
 907         int width, height;
 908
 909         ev_page_cache_get_size (view->page_cache, page,
 910                                 view->rotation,
 911                                 1.0,
 912                                 &width, &height);
 913
 914         if (view->rotation == 0) {
 915                 x = doc_rect->x1;
 916                 y = doc_rect->y1;
 917                 w = doc_rect->x2 - doc_rect->x1;
 918                 h = doc_rect->y2 - doc_rect->y1;
 919         } else if (view->rotation == 90) {
 920                 x = width - doc_rect->y2;
 921                 y = doc_rect->x1;
 922                 w = doc_rect->y2 - doc_rect->y1;
 923                 h = doc_rect->x2 - doc_rect->x1;
 924         } else if (view->rotation == 180) {
 925                 x = width - doc_rect->x2;
 926                 y = height - doc_rect->y2;
 927                 w = doc_rect->x2 - doc_rect->x1;
 928                 h = doc_rect->y2 - doc_rect->y1;
 929         } else if (view->rotation == 270) {
 930                 x = doc_rect->y1;
 931                 y = height - doc_rect->x2;
 932                 w = doc_rect->y2 - doc_rect->y1;
 933                 h = doc_rect->x2 - doc_rect->x1;
 934         } else {
 935                 g_assert_not_reached ();
 936         }
 937
 938         get_page_extents (view, page, &page_area, &border);
 939
 940         view_rect->x = x * view->scale + page_area.x;
 941         view_rect->y = y * view->scale + page_area.y;
 942         view_rect->width = w * view->scale;
 943         view_rect->height = h * view->scale;
 944 }
 945
 946 static void
 947 find_page_at_location (EvView  *view,
 948                        gdouble  x,
 949                        gdouble  y,
 950                        gint    *page,
 951                        gint    *x_offset,
 952                        gint    *y_offset)
 953 {
 954         int i;
 955
 956         if (view->document == NULL)
 957                 return;
 958
 959         g_assert (page);
 960         g_assert (x_offset);
 961         g_assert (y_offset);
 962
 963         for (i = view->start_page; i <= view->end_page; i++) {
 964                 GdkRectangle page_area;
 965                 GtkBorder border;
 966
 967                 if (! get_page_extents (view, i, &page_area, &border))
 968                         continue;
 969
 970                 if ((x >= page_area.x + border.left) &&
 971                     (x < page_area.x + page_area.width - border.right) &&
 972                     (y >= page_area.y + border.top) &&
 973                     (y < page_area.y + page_area.height - border.bottom)) {
 974                         *page = i;
 975                         *x_offset = x - (page_area.x + border.left);
 976                         *y_offset = y - (page_area.y + border.top);
 977                         return;
 978                 }
 979         }
 980
 981         *page = -1;
 982 }
 983
 984 static gboolean
 985 location_in_text (EvView  *view,
 986                   gdouble  x,
 987                   gdouble  y)
 988 {
 989         GdkRegion *region;
 990         gint page = -1;
 991         gint x_offset = 0, y_offset = 0;
 992
 993         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
 994
 995         if (page == -1)
 996                 return FALSE;
 997
 998         region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page);
 999
1000         if (region)
1001                 return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale);
1002         else
1003                 return FALSE;
1004 }
1005
1006 static int
1007 ev_view_get_width (EvView *view)
1008 {
1009         return GTK_WIDGET (view)->allocation.width;
1010 }
1011
1012 static int
1013 ev_view_get_height (EvView *view)
1014 {
1015         return GTK_WIDGET (view)->allocation.height;
1016 }
1017
1018 static gboolean
1019 location_in_selected_text (EvView  *view,
1020                            gdouble  x,
1021                            gdouble  y)
1022 {
1023         gint page = -1;
1024         gint x_offset = 0, y_offset = 0;
1025         EvViewSelection *selection;
1026         GList *l = NULL;
1027
1028         for (l = view->selection_info.selections; l != NULL; l = l->next) {
1029                 selection = (EvViewSelection *)l->data;
1030
1031                 find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1032
1033                 if (page != selection->page)
1034                         continue;
1035
1036                 if (selection->covered_region &&
1037                     gdk_region_point_in (selection->covered_region, x_offset, y_offset))
1038                         return TRUE;
1039         }
1040
1041         return FALSE;
1042 }
1043
1044 /*** Hyperref ***/
1045 static EvLink *
1046 ev_view_get_link_at_location (EvView  *view,
1047                               gdouble  x,
1048                               gdouble  y)
1049 {
1050         gint page = -1;
1051         gint x_offset = 0, y_offset = 0;
1052         GList *link_mapping;
1053
1054         x += view->scroll_x;
1055         y += view->scroll_y;
1056
1057         find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
1058
1059         if (page == -1)
1060                 return NULL;
1061
1062         link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
1063
1064         if (link_mapping)
1065                 return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale);
1066         else
1067                 return NULL;
1068 }
1069
1070 static void
1071 goto_fitr_link (EvView *view, EvLink *link)
1072 {
1073         EvPoint doc_point;
1074         int page;
1075         double zoom;
1076
1077         zoom = zoom_for_size_best_fit (ev_link_get_right (link) - ev_link_get_left (link),
1078                                        ev_link_get_top (link) - ev_link_get_bottom (link),
1079                                        ev_view_get_width (view),
1080                                        ev_view_get_height (view), 0, 0);
1081
1082         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1083         ev_view_set_zoom (view, zoom, FALSE);
1084
1085         page = ev_link_get_page (link);
1086         doc_point.x = ev_link_get_left (link);
1087         doc_point.y = ev_link_get_top (link);
1088
1089         view->current_page = page;
1090         view->pending_point = doc_point;
1091         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1092
1093         gtk_widget_queue_resize (GTK_WIDGET (view));
1094 }
1095
1096 static void
1097 goto_fitv_link (EvView *view, EvLink *link)
1098 {
1099         EvPoint doc_point;
1100         int doc_width, doc_height, page;
1101         double zoom;
1102
1103         page = ev_link_get_page (link);
1104         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1105
1106         doc_point.x = ev_link_get_left (link);
1107         doc_point.y = 0;
1108
1109         zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height,
1110                                          ev_view_get_width (view),
1111                                          ev_view_get_height (view), 0);
1112
1113         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1114         ev_view_set_zoom (view, zoom, FALSE);
1115
1116         view->current_page = page;
1117         view->pending_point = doc_point;
1118         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1119
1120         gtk_widget_queue_resize (GTK_WIDGET (view));
1121 }
1122
1123 static void
1124 goto_fith_link (EvView *view, EvLink *link)
1125 {
1126         EvPoint doc_point;
1127         int doc_width, doc_height, page;
1128         double zoom;
1129
1130         page = ev_link_get_page (link);
1131         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1132
1133         doc_point.x = 0;
1134         doc_point.y = doc_height - ev_link_get_top (link);
1135
1136         zoom = zoom_for_size_fit_width (doc_width, ev_link_get_top (link),
1137                                         ev_view_get_width (view),
1138                                         ev_view_get_height (view), 0);
1139
1140         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1141         ev_view_set_zoom (view, zoom, FALSE);
1142
1143         view->current_page = page;
1144         view->pending_point = doc_point;
1145         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1146
1147         gtk_widget_queue_resize (GTK_WIDGET (view));
1148 }
1149
1150 static void
1151 goto_fit_link (EvView *view, EvLink *link)
1152 {
1153         double zoom;
1154         int doc_width, doc_height;
1155         int page;
1156
1157         page = ev_link_get_page (link);
1158         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height);
1159
1160         zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view),
1161                                        ev_view_get_height (view), 0, 0);
1162
1163         ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1164         ev_view_set_zoom (view, zoom, FALSE);
1165
1166         view->current_page = page;
1167         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1168
1169         gtk_widget_queue_resize (GTK_WIDGET (view));
1170 }
1171
1172 static void
1173 goto_xyz_link (EvView *view, EvLink *link)
1174 {
1175         EvPoint doc_point;
1176         int height, page;
1177         double zoom;
1178
1179         zoom = ev_link_get_zoom (link);
1180         page = ev_link_get_page (link);
1181         ev_page_cache_get_size (view->page_cache, page, 0, 1.0, NULL, &height);
1182
1183         if (zoom != 0) {
1184                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1185                 ev_view_set_zoom (view, zoom, FALSE);
1186         }
1187
1188         doc_point.x = ev_link_get_left (link);
1189         doc_point.y = height - ev_link_get_top (link);
1190
1191         view->current_page = page;
1192         view->pending_point = doc_point;
1193         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
1194
1195         gtk_widget_queue_resize (GTK_WIDGET (view));
1196 }
1197
1198 void
1199 ev_view_goto_link (EvView *view, EvLink *link)
1200 {
1201         EvLinkType type;
1202         int page;
1203
1204         type = ev_link_get_link_type (link);
1205
1206         switch (type) {
1207                 case EV_LINK_TYPE_TITLE:
1208                         break;
1209                 case EV_LINK_TYPE_PAGE:
1210                         page = ev_link_get_page (link);
1211                         ev_page_cache_set_current_page (view->page_cache, page);
1212                         break;
1213                 case EV_LINK_TYPE_PAGE_FIT:
1214                         goto_fit_link (view, link);
1215                         break;
1216                 case EV_LINK_TYPE_PAGE_FITH:
1217                         goto_fith_link (view, link);
1218                         break;
1219                 case EV_LINK_TYPE_PAGE_FITV:
1220                         goto_fitv_link (view, link);
1221                         break;
1222                 case EV_LINK_TYPE_PAGE_FITR:
1223                         goto_fitr_link (view, link);
1224                         break;
1225                 case EV_LINK_TYPE_PAGE_XYZ:
1226                         goto_xyz_link (view, link);
1227                         break;
1228                 case EV_LINK_TYPE_EXTERNAL_URI:
1229                 case EV_LINK_TYPE_LAUNCH:
1230                         g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, link);
1231                         break;
1232         }
1233 }
1234
1235 static char *
1236 tip_from_link (EvView *view, EvLink *link)
1237 {
1238         EvLinkType type;
1239         char *msg = NULL;
1240         char *page_label;
1241
1242         type = ev_link_get_link_type (link);
1243
1244         switch (type) {
1245                 case EV_LINK_TYPE_TITLE:
1246                         if (ev_link_get_title (link))
1247                                 msg = g_strdup (ev_link_get_title (link));
1248                         break;
1249                 case EV_LINK_TYPE_PAGE:
1250                 case EV_LINK_TYPE_PAGE_XYZ:
1251                         page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link));
1252                         msg = g_strdup_printf (_("Go to page %s"), page_label);
1253                         g_free (page_label);
1254                         break;
1255                 case EV_LINK_TYPE_EXTERNAL_URI:
1256                         msg = g_strdup (ev_link_get_uri (link));
1257                         break;
1258                 default:
1259                         break;
1260         }
1261
1262         return msg;
1263 }
1264
1265 static void
1266 handle_link_over_xy (EvView *view, gint x, gint y)
1267 {
1268         EvLink *link;
1269
1270         link = ev_view_get_link_at_location (view, x, y);
1271
1272         if (view->link_tooltip == NULL) {
1273                 view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view));
1274         }
1275
1276         if (view->hovered_link != link) {
1277                 view->hovered_link = link;
1278                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1279         }
1280
1281         if (link) {
1282                 char *msg = tip_from_link (view, link);
1283
1284                 if (msg && g_utf8_validate (msg, -1, NULL)) {
1285                         EvTooltip *tooltip = EV_TOOLTIP (view->link_tooltip);
1286
1287                         ev_tooltip_set_position (tooltip, x, y);
1288                         ev_tooltip_set_text (tooltip, msg);
1289                         ev_tooltip_activate (tooltip);
1290                 }
1291                 g_free (msg);
1292
1293                 ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1294         } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) {
1295                 ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM);
1296         } else {
1297                 ev_view_set_status (view, NULL);
1298                 if (view->cursor == EV_VIEW_CURSOR_LINK ||
1299                     view->cursor == EV_VIEW_CURSOR_IBEAM)
1300                         ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1301         }
1302         return;
1303 }
1304
1305 /*** GtkWidget implementation ***/
1306
1307 static void
1308 ev_view_size_request_continuous_dual_page (EvView         *view,
1309                                            GtkRequisition *requisition)
1310 {
1311         int max_width;
1312         gint n_pages;
1313         GtkBorder border;
1314
1315         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1316                                      view->scale, &max_width);
1317         compute_border (view, max_width, max_width, &border);
1318
1319         n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
1320
1321         requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
1322         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1323
1324         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1325                 requisition->width = 1;
1326         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1327                 requisition->width = 1;
1328                 /* FIXME: This could actually be set on one page docs or docs
1329                  * with a strange aspect ratio. */
1330                 /* requisition->height = 1;*/
1331         }
1332 }
1333
1334 static void
1335 ev_view_size_request_continuous (EvView         *view,
1336                                  GtkRequisition *requisition)
1337 {
1338         int max_width;
1339         int n_pages;
1340         GtkBorder border;
1341
1342
1343         ev_page_cache_get_max_width (view->page_cache, view->rotation,
1344                                      view->scale, &max_width);
1345         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1346         compute_border (view, max_width, max_width, &border);
1347
1348         requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
1349         get_page_y_offset (view, n_pages, view->scale, &requisition->height);
1350
1351         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1352                 requisition->width = 1;
1353         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1354                 requisition->width = 1;
1355                 /* FIXME: This could actually be set on one page docs or docs
1356                  * with a strange aspect ratio. */
1357                 /* requisition->height = 1;*/
1358         }
1359 }
1360
1361 static void
1362 ev_view_size_request_dual_page (EvView         *view,
1363                                 GtkRequisition *requisition)
1364 {
1365         GtkBorder border;
1366         gint width, height;
1367
1368         /* Find the largest of the two. */
1369         ev_page_cache_get_size (view->page_cache,
1370                                 view->current_page,
1371                                 view->rotation,
1372                                 view->scale,
1373                                 &width, &height);
1374         if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
1375                 gint width_2, height_2;
1376                 ev_page_cache_get_size (view->page_cache,
1377                                         view->current_page + 1,
1378                                         view->rotation,
1379                                         view->scale,
1380                                         &width_2, &height_2);
1381                 if (width_2 > width) {
1382                         width = width_2;
1383                         height = height_2;
1384                 }
1385         }
1386         compute_border (view, width, height, &border);
1387
1388         requisition->width = ((width + border.left + border.right) * 2) +
1389                 (view->spacing * 3);
1390         requisition->height = (height + border.top + border.bottom) +
1391                 (view->spacing * 2);
1392
1393         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1394                 requisition->width = 1;
1395         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1396                 requisition->width = 1;
1397                 requisition->height = 1;
1398         }
1399 }
1400
1401 static void
1402 ev_view_size_request_single_page (EvView         *view,
1403                                   GtkRequisition *requisition)
1404 {
1405         GtkBorder border;
1406         gint width, height;
1407
1408         ev_page_cache_get_size (view->page_cache,
1409                                 view->current_page,
1410                                 view->rotation,
1411                                 view->scale,
1412                                 &width, &height);
1413         compute_border (view, width, height, &border);
1414
1415         requisition->width = width + border.left + border.right + (2 * view->spacing);
1416         requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1417
1418         if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
1419                 requisition->width = 1;
1420                 requisition->height = height + border.top + border.bottom + (2 * view->spacing);
1421         } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
1422                 requisition->width = 1;
1423                 requisition->height = 1;
1424         }
1425 }
1426
1427 static void
1428 ev_view_size_request (GtkWidget      *widget,
1429                       GtkRequisition *requisition)
1430 {
1431         EvView *view = EV_VIEW (widget);
1432
1433         if (view->document == NULL) {
1434                 requisition->width = 1;
1435                 requisition->height = 1;
1436                 return;
1437         }
1438
1439         if (view->presentation) {
1440                 requisition->width = 1;
1441                 requisition->height = 1;
1442                 return;
1443         }
1444
1445         if (view->continuous && view->dual_page)
1446                 ev_view_size_request_continuous_dual_page (view, requisition);
1447         else if (view->continuous)
1448                 ev_view_size_request_continuous (view, requisition);
1449         else if (view->dual_page)
1450                 ev_view_size_request_dual_page (view, requisition);
1451         else
1452                 ev_view_size_request_single_page (view, requisition);
1453 }
1454
1455 static void
1456 ev_view_size_allocate (GtkWidget      *widget,
1457                        GtkAllocation  *allocation)
1458 {
1459         EvView *view = EV_VIEW (widget);
1460
1461         if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
1462             view->sizing_mode == EV_SIZING_BEST_FIT) {
1463
1464                 g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
1465
1466                 ev_view_size_request (widget, &widget->requisition);
1467         }
1468
1469         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
1470         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
1471
1472         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
1473         view->pending_resize = FALSE;
1474
1475         if (view->document)
1476                 view_update_range_and_current_page (view);
1477
1478         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
1479 }
1480
1481 static void
1482 ev_view_realize (GtkWidget *widget)
1483 {
1484         EvView *view = EV_VIEW (widget);
1485         GdkWindowAttr attributes;
1486
1487         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1488
1489
1490         attributes.window_type = GDK_WINDOW_CHILD;
1491         attributes.wclass = GDK_INPUT_OUTPUT;
1492         attributes.visual = gtk_widget_get_visual (widget);
1493         attributes.colormap = gtk_widget_get_colormap (widget);
1494
1495         attributes.x = widget->allocation.x;
1496         attributes.y = widget->allocation.y;
1497         attributes.width = widget->allocation.width;
1498         attributes.height = widget->allocation.height;
1499         attributes.event_mask = GDK_EXPOSURE_MASK |
1500                                 GDK_BUTTON_PRESS_MASK |
1501                                 GDK_BUTTON_RELEASE_MASK |
1502                                 GDK_SCROLL_MASK |
1503                                 GDK_KEY_PRESS_MASK |
1504                                 GDK_POINTER_MOTION_MASK |
1505                                 GDK_POINTER_MOTION_HINT_MASK |
1506                                 GDK_ENTER_NOTIFY_MASK |
1507                                 GDK_LEAVE_NOTIFY_MASK;
1508
1509         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1510                                          &attributes,
1511                                          GDK_WA_X | GDK_WA_Y |
1512                                          GDK_WA_COLORMAP |
1513                                          GDK_WA_VISUAL);
1514         gdk_window_set_user_data (widget->window, widget);
1515         widget->style = gtk_style_attach (widget->style, widget->window);
1516
1517         if (view->presentation)
1518                 gdk_window_set_background (widget->window, &widget->style->black);
1519         else
1520                 gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]);
1521 }
1522
1523 static gboolean
1524 ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
1525 {
1526         EvView *view = EV_VIEW (widget);
1527         guint state;
1528
1529         state = event->state & gtk_accelerator_get_default_mod_mask ();
1530
1531         if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
1532                 ev_view_set_sizing_mode (view, EV_SIZING_FREE);
1533
1534                 if (event->direction == GDK_SCROLL_UP ||
1535                     event->direction == GDK_SCROLL_LEFT) {
1536                         if (ev_view_can_zoom_in (view)) {
1537                                 ev_view_zoom_in (view);
1538                         }
1539                 } else {
1540                         if (ev_view_can_zoom_out (view)) {
1541                                 ev_view_zoom_out (view);
1542                         }
1543                 }
1544
1545                 return TRUE;
1546         }
1547
1548         view->jump_to_find_result = FALSE;
1549         /* Shift+Wheel scrolls the in the perpendicular direction */
1550         if (state & GDK_SHIFT_MASK) {
1551                 if (event->direction == GDK_SCROLL_UP)
1552                         event->direction = GDK_SCROLL_LEFT;
1553                 if (event->direction == GDK_SCROLL_LEFT)
1554                         event->direction = GDK_SCROLL_UP;
1555                 if (event->direction == GDK_SCROLL_DOWN)
1556                         event->direction = GDK_SCROLL_RIGHT;
1557                 if (event->direction == GDK_SCROLL_RIGHT)
1558                         event->direction = GDK_SCROLL_DOWN;
1559
1560                 event->state &= ~GDK_SHIFT_MASK;
1561                 state &= ~GDK_SHIFT_MASK;
1562         }
1563
1564         if (state == 0 && view->presentation) {
1565                 switch (event->direction) {
1566                 case GDK_SCROLL_DOWN:
1567                 case GDK_SCROLL_RIGHT:
1568                         ev_view_next_page (view);
1569                         break;
1570                 case GDK_SCROLL_UP:
1571                 case GDK_SCROLL_LEFT:
1572                         ev_view_previous_page (view);
1573                         break;
1574                 }
1575
1576                 return TRUE;
1577         }
1578
1579         return FALSE;
1580 }
1581
1582 static EvViewSelection *
1583 find_selection_for_page (EvView *view,
1584                          gint    page)
1585 {
1586         GList *list;
1587
1588         for (list = view->selection_info.selections; list != NULL; list = list->next) {
1589                 EvViewSelection *selection;
1590
1591                 selection = (EvViewSelection *) list->data;
1592
1593                 if (selection->page == page)
1594                         return selection;
1595         }
1596
1597         return NULL;
1598 }
1599
1600 static gboolean
1601 ev_view_expose_event (GtkWidget      *widget,
1602                       GdkEventExpose *event)
1603 {
1604         EvView *view = EV_VIEW (widget);
1605         int i;
1606
1607         if (view->loading) {
1608                 GdkRectangle area = {0};
1609
1610                 area.width = widget->allocation.width;
1611                 area.height = widget->allocation.height;
1612
1613                 draw_loading_text (view,
1614                                    &area,
1615                                    &(event->area));
1616         }
1617
1618         if (view->document == NULL)
1619                 return FALSE;
1620
1621         for (i = view->start_page; i <= view->end_page; i++) {
1622                 GdkRectangle page_area;
1623                 GtkBorder border;
1624
1625                 if (!get_page_extents (view, i, &page_area, &border))
1626                         continue;
1627
1628                 page_area.x -= view->scroll_x;
1629                 page_area.y -= view->scroll_y;
1630
1631                 draw_one_page (view, i, &page_area, &border, &(event->area));
1632
1633                 if (EV_IS_DOCUMENT_FIND (view->document))
1634                         highlight_find_results (view, i);
1635         }
1636
1637         return FALSE;
1638 }
1639
1640 static gboolean
1641 ev_view_popup_menu (GtkWidget *widget)
1642 {
1643     gint x, y;
1644     EvLink *link;
1645     EvView *view = EV_VIEW (widget);
1646
1647     gtk_widget_get_pointer (widget, &x, &y);
1648     link = ev_view_get_link_at_location (view, x, y);
1649     g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
1650     return TRUE;
1651 }
1652
1653 static gboolean
1654 ev_view_button_press_event (GtkWidget      *widget,
1655                             GdkEventButton *event)
1656 {
1657         EvView *view = EV_VIEW (widget);
1658         EvLink *link;
1659
1660         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
1661                 gtk_widget_grab_focus (widget);
1662         }
1663
1664         view->pressed_button = event->button;
1665         view->selection_info.in_drag = FALSE;
1666
1667         switch (event->button) {
1668                 case 1:
1669                         if (view->selection_info.selections) {
1670                                 if (location_in_selected_text (view,
1671                                                                event->x + view->scroll_x,
1672                                                                event->y + view->scroll_y)) {
1673                                         view->selection_info.in_drag = TRUE;
1674                                 } else {
1675                                         clear_selection (view);
1676                                 }
1677
1678                                 gtk_widget_queue_draw (widget);
1679                         }
1680
1681                         view->selection_info.start.x = event->x + view->scroll_x;
1682                         view->selection_info.start.y = event->y + view->scroll_y;
1683
1684                         return TRUE;
1685                 case 2:
1686                         /* use root coordinates as reference point because
1687                          * scrolling changes window relative coordinates */
1688                         view->drag_info.start.x = event->x_root;
1689                         view->drag_info.start.y = event->y_root;
1690                         view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
1691                         view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
1692
1693                         ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
1694
1695                         return TRUE;
1696                 case 3:
1697                         link = ev_view_get_link_at_location (view, event->x, event->y);
1698                         g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
1699                         return TRUE;
1700         }
1701
1702         return FALSE;
1703 }
1704
1705 static void
1706 ev_view_drag_data_get (GtkWidget        *widget,
1707                        GdkDragContext   *context,
1708                        GtkSelectionData *selection_data,
1709                        guint             info,
1710                        guint             time)
1711 {
1712         EvView *view = EV_VIEW (widget);
1713
1714         if (view->selection_info.selections &&
1715             ev_document_can_get_text (view->document)) {
1716                 gchar *text;
1717
1718                 text = get_selected_text (view);
1719
1720                 gtk_selection_data_set_text (selection_data, text, strlen (text));
1721
1722                 g_free (text);
1723         }
1724 }
1725
1726 static gboolean
1727 selection_update_idle_cb (EvView *view)
1728 {
1729         compute_selections (view, &view->selection_info.start, &view->motion);
1730         view->selection_update_id = 0;
1731         return FALSE;
1732 }
1733
1734 static gboolean
1735 selection_scroll_timeout_cb (EvView *view)
1736 {
1737         gint x, y, shift = 0;
1738         GtkWidget *widget = GTK_WIDGET (view);
1739
1740         gtk_widget_get_pointer (widget, &x, &y);
1741
1742         if (y > widget->allocation.height) {
1743                 shift = (y - widget->allocation.height) / 2;
1744         } else if (y < 0) {
1745                 shift = y / 2;
1746         }
1747
1748         if (shift)
1749                 gtk_adjustment_set_value (view->vadjustment,
1750                                           CLAMP (view->vadjustment->value + shift,
1751                                           view->vadjustment->lower,
1752                                           view->vadjustment->upper -
1753                                           view->vadjustment->page_size));
1754
1755         if (x > widget->allocation.width) {
1756                 shift = (x - widget->allocation.width) / 2;
1757         } else if (x < 0) {
1758                 shift = x / 2;
1759         }
1760
1761         if (shift)
1762                 gtk_adjustment_set_value (view->hadjustment,
1763                                           CLAMP (view->hadjustment->value + shift,
1764                                           view->hadjustment->lower,
1765                                           view->hadjustment->upper -
1766                                           view->hadjustment->page_size));
1767
1768         return TRUE;
1769 }
1770
1771 static gboolean
1772 ev_view_motion_notify_event (GtkWidget      *widget,
1773                              GdkEventMotion *event)
1774 {
1775         EvView *view = EV_VIEW (widget);
1776         gint x, y;
1777
1778         if (!view->document)
1779                 return FALSE;
1780
1781         if (event->is_hint || event->window != widget->window) {
1782             gtk_widget_get_pointer (widget, &x, &y);
1783         } else {
1784             x = event->x;
1785             y = event->y;
1786         }
1787
1788         if (view->selection_info.in_drag) {
1789                 if (gtk_drag_check_threshold (widget,
1790                                               view->selection_info.start.x,
1791                                               view->selection_info.start.y,
1792                                               x, y)) {
1793                         GdkDragContext *context;
1794                         GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
1795
1796                         gtk_target_list_add_text_targets (target_list, 0);
1797
1798                         context = gtk_drag_begin (widget, target_list,
1799                                                   GDK_ACTION_COPY,
1800                                                   1, (GdkEvent *)event);
1801
1802                         view->selection_info.in_drag = FALSE;
1803
1804                         gtk_target_list_unref (target_list);
1805
1806                         return TRUE;
1807                 }
1808         }
1809
1810         /* For the Evince 0.4.x release, we limit selection to un-rotated
1811          * documents only.
1812          */
1813         if (view->pressed_button == 1 && view->rotation == 0) {
1814
1815                 /* Schedule timeout to scroll during selection and additionally
1816                  * scroll once to allow arbitrary speed. */
1817                 if (!view->selection_scroll_id)
1818                     view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
1819                 else
1820                     selection_scroll_timeout_cb (view);
1821
1822                 view->selection_info.in_selection = TRUE;
1823                 view->motion.x = x + view->scroll_x;
1824                 view->motion.y = y + view->scroll_y;
1825
1826                 /* Queue an idle to handle the motion.  We do this because
1827                  * handling any selection events in the motion could be slower
1828                  * than new motion events reach us.  We always put it in the
1829                  * idle to make sure we catch up and don't visibly lag the
1830                  * mouse. */
1831                 if (!view->selection_update_id)
1832                         view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
1833
1834                 return TRUE;
1835         } else if (view->pressed_button == 2) {
1836                 if (!view->drag_info.in_drag) {
1837                         gboolean start;
1838
1839                         start = gtk_drag_check_threshold (widget,
1840                                                           view->drag_info.start.x,
1841                                                           view->drag_info.start.y,
1842                                                           event->x_root,
1843                                                           event->y_root);
1844                         view->drag_info.in_drag = start;
1845                 }
1846
1847                 if (view->drag_info.in_drag) {
1848                         int dx, dy;
1849                         gdouble dhadj_value, dvadj_value;
1850
1851                         dx = event->x_root - view->drag_info.start.x;
1852                         dy = event->y_root - view->drag_info.start.y;
1853
1854                         dhadj_value = view->hadjustment->page_size *
1855                                       (gdouble)dx / widget->allocation.width;
1856                         dvadj_value = view->vadjustment->page_size *
1857                                       (gdouble)dy / widget->allocation.height;
1858
1859                         /* clamp scrolling to visible area */
1860                         gtk_adjustment_set_value (view->hadjustment,
1861                                                   MIN(view->drag_info.hadj - dhadj_value,
1862                                                       view->hadjustment->upper -
1863                                                       view->hadjustment->page_size));
1864                         gtk_adjustment_set_value (view->vadjustment,
1865                                                   MIN(view->drag_info.vadj - dvadj_value,
1866                                                       view->vadjustment->upper -
1867                                                       view->vadjustment->page_size));
1868
1869                         return TRUE;
1870                 }
1871         /* For the Evince 0.4.x release, we limit links to un-rotated documents
1872          * only.
1873          */
1874         } else if (view->pressed_button <= 0 &&
1875                    view->rotation == 0) {
1876                 handle_link_over_xy (view, x, y);
1877                 return TRUE;
1878         }
1879
1880         return FALSE;
1881 }
1882
1883 static gboolean
1884 ev_view_button_release_event (GtkWidget      *widget,
1885                               GdkEventButton *event)
1886 {
1887         EvView *view = EV_VIEW (widget);
1888         EvLink *link;
1889
1890         if (view->pressed_button == 2) {
1891                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1892         }
1893
1894         if (view->document) {
1895                 link = ev_view_get_link_at_location (view, event->x, event->y);
1896         } else {
1897                 link = NULL;
1898         }
1899
1900         view->pressed_button = -1;
1901         view->drag_info.in_drag = FALSE;
1902
1903         if (view->selection_scroll_id) {
1904             g_source_remove (view->selection_scroll_id);
1905             view->selection_scroll_id = 0;
1906         }
1907         if (view->selection_update_id) {
1908             g_source_remove (view->selection_update_id);
1909             view->selection_update_id = 0;
1910         }
1911
1912         if (view->selection_info.selections) {
1913                 ev_view_update_primary_selection (view);
1914
1915                 if (view->selection_info.in_drag) {
1916                         clear_selection (view);
1917                         gtk_widget_queue_draw (widget);
1918                 }
1919
1920                 view->selection_info.in_drag = FALSE;
1921         } else if (link) {
1922                 ev_view_goto_link (view, link);
1923         } else if (view->presentation) {
1924                 switch (event->button) {
1925                 case 1:
1926                         ev_view_next_page (view);
1927                         return TRUE;
1928                 case 3:
1929                         ev_view_previous_page (view);
1930                         return TRUE;
1931                 }
1932         }
1933
1934         return FALSE;
1935 }
1936
1937 static gint
1938 ev_view_focus_in (GtkWidget     *widget,
1939                   GdkEventFocus *event)
1940 {
1941         if (EV_VIEW (widget)->pixbuf_cache)
1942                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1943         gtk_widget_queue_draw (widget);
1944
1945         return FALSE;
1946 }
1947
1948 static gint
1949 ev_view_focus_out (GtkWidget     *widget,
1950                      GdkEventFocus *event)
1951 {
1952         if (EV_VIEW (widget)->pixbuf_cache)
1953                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1954         gtk_widget_queue_draw (widget);
1955
1956         return FALSE;
1957 }
1958
1959 static gboolean
1960 ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
1961 {
1962         EvView *view = EV_VIEW (widget);
1963
1964         ev_view_set_status (view, NULL);
1965
1966         if (view->cursor == EV_VIEW_CURSOR_LINK ||
1967             view->cursor == EV_VIEW_CURSOR_IBEAM)
1968                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
1969
1970         if (view->link_tooltip) {
1971                 view->hovered_link = NULL;
1972                 ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip));
1973         }
1974
1975         return FALSE;
1976 }
1977
1978 static gboolean
1979 ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing   *event)
1980 {
1981         EvView *view = EV_VIEW (widget);
1982
1983         handle_link_over_xy (view, event->x, event->y);
1984
1985         return FALSE;
1986 }
1987
1988 static void
1989 ev_view_style_set (GtkWidget *widget,
1990                    GtkStyle  *old_style)
1991 {
1992         if (EV_VIEW (widget)->pixbuf_cache)
1993                 ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache);
1994
1995         GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style);
1996 }
1997
1998 /*** Drawing ***/
1999
2000 static guint32
2001 ev_gdk_color_to_rgb (const GdkColor *color)
2002 {
2003   guint32 result;
2004   result = (0xff0000 | (color->red & 0xff00));
2005   result <<= 8;
2006   result |= ((color->green & 0xff00) | (color->blue >> 8));
2007   return result;
2008 }
2009
2010 static void
2011 draw_rubberband (GtkWidget *widget, GdkWindow *window,
2012                  const GdkRectangle *rect, guchar alpha)
2013 {
2014         GdkGC *gc;
2015         GdkPixbuf *pixbuf;
2016         GdkColor *fill_color_gdk;
2017         guint fill_color;
2018
2019         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
2020         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
2021
2022         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
2023                                  rect->width, rect->height);
2024         gdk_pixbuf_fill (pixbuf, fill_color);
2025
2026         gdk_draw_pixbuf (window, NULL, pixbuf,
2027                          0, 0,
2028                          rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2029                          rect->width, rect->height,
2030                          GDK_RGB_DITHER_NONE,
2031                          0, 0);
2032
2033         g_object_unref (pixbuf);
2034
2035         gc = gdk_gc_new (window);
2036         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
2037         gdk_draw_rectangle (window, gc, FALSE,
2038                             rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
2039                             rect->width - 1,
2040                             rect->height - 1);
2041         g_object_unref (gc);
2042
2043         gdk_color_free (fill_color_gdk);
2044 }
2045
2046
2047 static void
2048 highlight_find_results (EvView *view, int page)
2049 {
2050         EvDocumentFind *find;
2051         int i, results = 0;
2052
2053         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
2054
2055         find = EV_DOCUMENT_FIND (view->document);
2056
2057         results = ev_document_find_get_n_results (find, page);
2058
2059         for (i = 0; i < results; i++) {
2060                 EvRectangle rectangle;
2061                 GdkRectangle view_rectangle;
2062                 guchar alpha;
2063
2064                 if (i == view->find_result && page == view->current_page) {
2065                         alpha = 0x90;
2066                 } else {
2067                         alpha = 0x20;
2068                 }
2069
2070                 ev_document_find_get_result (find, page, i, &rectangle);
2071                 doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle);
2072                 draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window,
2073                                  &view_rectangle, alpha);
2074         }
2075 }
2076
2077 static void
2078 draw_loading_text (EvView       *view,
2079                    GdkRectangle *page_area,
2080                    GdkRectangle *expose_area)
2081 {
2082         PangoLayout *layout;
2083         PangoFontDescription *font_desc;
2084         PangoRectangle logical_rect;
2085         double real_scale;
2086         int target_width;
2087
2088         const char *loading_text = _("Loading...");
2089
2090         layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text);
2091
2092         font_desc = pango_font_description_new ();
2093
2094
2095         /* We set the font to be 10 points, get the size, and scale appropriately */
2096         pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
2097         pango_layout_set_font_description (layout, font_desc);
2098         pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2099
2100         /* Make sure we fit the middle of the page */
2101         target_width = MAX (page_area->width / 2, 1);
2102         real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10);
2103         pango_font_description_set_size (font_desc, (int)real_scale);
2104         pango_layout_set_font_description (layout, font_desc);
2105         pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
2106
2107         gtk_paint_layout (GTK_WIDGET (view)->style,
2108                           GTK_WIDGET (view)->window,
2109                           GTK_WIDGET_STATE (view),
2110                           FALSE,
2111                           page_area,
2112                           GTK_WIDGET (view),
2113                           NULL,
2114                           page_area->x + (target_width/2),
2115                           page_area->y + (page_area->height - logical_rect.height) / 2,
2116                           layout);
2117
2118         pango_font_description_free (font_desc);
2119         g_object_unref (layout);
2120 }
2121
2122 static void
2123 draw_one_page (EvView          *view,
2124                gint             page,
2125                GdkRectangle    *page_area,
2126                GtkBorder       *border,
2127                GdkRectangle    *expose_area)
2128 {
2129         gint width, height;
2130         GdkPixbuf *current_pixbuf;
2131         GdkRectangle overlap;
2132         GdkRectangle real_page_area;
2133         EvViewSelection *selection;
2134         gint current_page;
2135
2136         g_assert (view->document);
2137
2138         if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
2139                 return;
2140
2141         current_page = ev_page_cache_get_current_page (view->page_cache);
2142         selection = find_selection_for_page (view, page);
2143         ev_page_cache_get_size (view->page_cache,
2144                                 page, view->rotation,
2145                                 view->scale,
2146                                 &width, &height);
2147         /* Render the document itself */
2148         real_page_area = *page_area;
2149
2150         real_page_area.x += border->left;
2151         real_page_area.y += border->top;
2152         real_page_area.width -= (border->left + border->right);
2153         real_page_area.height -= (border->top + border->bottom);
2154
2155         ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
2156                                          GTK_WIDGET (view),
2157                                          page_area, border,
2158                                          page == current_page);
2159
2160         if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
2161                 GdkPixbuf *selection_pixbuf = NULL;
2162                 GdkPixbuf *scaled_image;
2163                 GdkPixbuf *scaled_selection;
2164
2165                 current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
2166
2167                 /* Get the selection pixbuf iff we have something to draw */
2168                 if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
2169                         selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
2170                                                                                  page,
2171                                                                                  view->scale,
2172                                                                                  NULL);
2173
2174                 if (current_pixbuf == NULL)
2175                         scaled_image = NULL;
2176                 else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
2177                          height == gdk_pixbuf_get_height (current_pixbuf))
2178                         scaled_image = g_object_ref (current_pixbuf);
2179                 else
2180                         /* FIXME: We don't want to scale the whole area, just the right
2181                          * area of it */
2182                         scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
2183                                                                 width, height,
2184                                                                 GDK_INTERP_NEAREST);
2185
2186                 if (selection_pixbuf == NULL)
2187                         scaled_selection = NULL;
2188                 else if (width == gdk_pixbuf_get_width (selection_pixbuf) &&
2189                          height == gdk_pixbuf_get_height (selection_pixbuf))
2190                         scaled_selection = g_object_ref (selection_pixbuf);
2191                 else
2192                         /* FIXME: We don't want to scale the whole area, just the right
2193                          * area of it */
2194                         scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf,
2195                                                                     width, height,
2196                                                                     GDK_INTERP_NEAREST);
2197
2198                 if (scaled_image) {
2199                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2200                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2201                                          scaled_image,
2202                                          overlap.x - real_page_area.x,
2203                                          overlap.y - real_page_area.y,
2204                                          overlap.x, overlap.y,
2205                                          overlap.width, overlap.height,
2206                                          GDK_RGB_DITHER_NORMAL,
2207                                          0, 0);
2208                         g_object_unref (scaled_image);
2209                 } else {
2210                         draw_loading_text (view,
2211                                            &real_page_area,
2212                                            expose_area);
2213                 }
2214
2215                 if (scaled_selection) {
2216                         gdk_draw_pixbuf (GTK_WIDGET(view)->window,
2217                                          GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
2218                                          scaled_selection,
2219                                          overlap.x - real_page_area.x,
2220                                          overlap.y - real_page_area.y,
2221                                          overlap.x, overlap.y,
2222                                          overlap.width, overlap.height,
2223                                          GDK_RGB_DITHER_NORMAL,
2224                                          0, 0);
2225                         g_object_unref (scaled_selection);
2226                 }
2227         }
2228 }
2229
2230 /*** GObject functions ***/
2231
2232 static void
2233 ev_view_finalize (GObject *object)
2234 {
2235         EvView *view = EV_VIEW (object);
2236
2237         LOG ("Finalize");
2238
2239         g_free (view->status);
2240         g_free (view->find_status);
2241
2242         clear_selection (view);
2243
2244         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
2245 }
2246
2247 static void
2248 ev_view_destroy (GtkObject *object)
2249 {
2250         EvView *view = EV_VIEW (object);
2251
2252         if (view->document) {
2253                 g_object_unref (view->document);
2254                 view->document = NULL;
2255         }
2256
2257         if (view->pixbuf_cache) {
2258                 g_object_unref (view->pixbuf_cache);
2259                 view->pixbuf_cache = NULL;
2260         }
2261
2262         if (view->link_tooltip) {
2263                 gtk_widget_destroy (view->link_tooltip);
2264         }
2265
2266         if (view->selection_scroll_id) {
2267             g_source_remove (view->selection_scroll_id);
2268             view->selection_scroll_id = 0;
2269         }
2270
2271         if (view->selection_update_id) {
2272             g_source_remove (view->selection_update_id);
2273             view->selection_update_id = 0;
2274         }
2275
2276         ev_view_set_scroll_adjustments (view, NULL, NULL);
2277
2278         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
2279 }
2280
2281 static void
2282 ev_view_set_property (GObject      *object,
2283                       guint         prop_id,
2284                       const GValue *value,
2285                       GParamSpec   *pspec)
2286 {
2287         EvView *view = EV_VIEW (object);
2288
2289         switch (prop_id)
2290         {
2291         case PROP_CONTINUOUS:
2292                 ev_view_set_continuous (view, g_value_get_boolean (value));
2293                 break;
2294         case PROP_DUAL_PAGE:
2295                 ev_view_set_dual_page (view, g_value_get_boolean (value));
2296                 break;
2297         case PROP_FULLSCREEN:
2298                 ev_view_set_fullscreen (view, g_value_get_boolean (value));
2299                 break;
2300         case PROP_PRESENTATION:
2301                 ev_view_set_presentation (view, g_value_get_boolean (value));
2302                 break;
2303         case PROP_SIZING_MODE:
2304                 ev_view_set_sizing_mode (view, g_value_get_enum (value));
2305                 break;
2306         case PROP_ZOOM:
2307                 ev_view_set_zoom (view, g_value_get_double (value), FALSE);
2308                 break;
2309         case PROP_ROTATION:
2310                 ev_view_set_rotation (view, g_value_get_int (value));
2311                 break;
2312         default:
2313                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2314         }
2315 }
2316
2317 static AtkObject *
2318 ev_view_get_accessible (GtkWidget *widget)
2319 {
2320         static gboolean first_time = TRUE;
2321
2322         if (first_time) {
2323                 AtkObjectFactory *factory;
2324                 AtkRegistry *registry;
2325                 GType derived_type;
2326                 GType derived_atk_type;
2327
2328                 /*
2329                  * Figure out whether accessibility is enabled by looking at the
2330                  * type of the accessible object which would be created for
2331                  * the parent type of EvView.
2332                  */
2333                 derived_type = g_type_parent (EV_TYPE_VIEW);
2334
2335                 registry = atk_get_default_registry ();
2336                 factory = atk_registry_get_factory (registry,
2337                                                     derived_type);
2338                 derived_atk_type = atk_object_factory_get_accessible_type (factory);
2339                 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
2340                         atk_registry_set_factory_type (registry,
2341                                                        EV_TYPE_VIEW,
2342                                                        ev_view_accessible_factory_get_type ());
2343                 first_time = FALSE;
2344         }
2345         return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget);
2346 }
2347
2348 static void
2349 ev_view_get_property (GObject *object,
2350                       guint prop_id,
2351                       GValue *value,
2352                       GParamSpec *pspec)
2353 {
2354         EvView *view = EV_VIEW (object);
2355
2356         switch (prop_id)
2357         {
2358         case PROP_STATUS:
2359                 g_value_set_string (value, view->status);
2360                 break;
2361         case PROP_FIND_STATUS:
2362                 g_value_set_string (value, view->status);
2363                 break;
2364         case PROP_CONTINUOUS:
2365                 g_value_set_boolean (value, view->continuous);
2366                 break;
2367         case PROP_DUAL_PAGE:
2368                 g_value_set_boolean (value, view->dual_page);
2369                 break;
2370         case PROP_FULLSCREEN:
2371                 g_value_set_boolean (value, view->fullscreen);
2372                 break;
2373         case PROP_PRESENTATION:
2374                 g_value_set_boolean (value, view->presentation);
2375                 break;
2376         case PROP_SIZING_MODE:
2377                 g_value_set_enum (value, view->sizing_mode);
2378                 break;
2379         case PROP_ZOOM:
2380                 g_value_set_double (value, view->scale);
2381                 break;
2382         case PROP_ROTATION:
2383                 g_value_set_int (value, view->rotation);
2384                 break;
2385         case PROP_HAS_SELECTION:
2386                 g_value_set_boolean (value,
2387                                      view->selection_info.selections != NULL);
2388                 break;
2389         default:
2390                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2391         }
2392 }
2393
2394 static void
2395 ev_view_class_init (EvViewClass *class)
2396 {
2397         GObjectClass *object_class = G_OBJECT_CLASS (class);
2398         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
2399         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
2400         GtkBindingSet *binding_set;
2401
2402         object_class->finalize = ev_view_finalize;
2403         object_class->set_property = ev_view_set_property;
2404         object_class->get_property = ev_view_get_property;
2405
2406         widget_class->expose_event = ev_view_expose_event;
2407         widget_class->button_press_event = ev_view_button_press_event;
2408         widget_class->motion_notify_event = ev_view_motion_notify_event;
2409         widget_class->button_release_event = ev_view_button_release_event;
2410         widget_class->focus_in_event = ev_view_focus_in;
2411         widget_class->focus_out_event = ev_view_focus_out;
2412         widget_class->get_accessible = ev_view_get_accessible;
2413         widget_class->size_request = ev_view_size_request;
2414         widget_class->size_allocate = ev_view_size_allocate;
2415         widget_class->realize = ev_view_realize;
2416         widget_class->scroll_event = ev_view_scroll_event;
2417         widget_class->enter_notify_event = ev_view_enter_notify_event;
2418         widget_class->leave_notify_event = ev_view_leave_notify_event;
2419         widget_class->style_set = ev_view_style_set;
2420         widget_class->drag_data_get = ev_view_drag_data_get;
2421         widget_class->popup_menu = ev_view_popup_menu;
2422         gtk_object_class->destroy = ev_view_destroy;
2423
2424         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
2425         class->binding_activated = ev_view_scroll;
2426
2427         widget_class->set_scroll_adjustments_signal =
2428             g_signal_new ("set-scroll-adjustments",
2429                           G_OBJECT_CLASS_TYPE (object_class),
2430                           G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2431                           G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
2432                           NULL, NULL,
2433                           ev_marshal_VOID__OBJECT_OBJECT,
2434                           G_TYPE_NONE, 2,
2435                           GTK_TYPE_ADJUSTMENT,
2436                           GTK_TYPE_ADJUSTMENT);
2437
2438         signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated",
2439                          G_TYPE_FROM_CLASS (object_class),
2440                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2441                          G_STRUCT_OFFSET (EvViewClass, binding_activated),
2442                          NULL, NULL,
2443                          ev_marshal_VOID__ENUM_BOOLEAN,
2444                          G_TYPE_NONE, 2,
2445                          GTK_TYPE_SCROLL_TYPE,
2446                          G_TYPE_BOOLEAN);
2447
2448         signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid",
2449                          G_TYPE_FROM_CLASS (object_class),
2450                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2451                          G_STRUCT_OFFSET (EvViewClass, zoom_invalid),
2452                          NULL, NULL,
2453                          ev_marshal_VOID__VOID,
2454                          G_TYPE_NONE, 0, G_TYPE_NONE);
2455         signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
2456                          G_TYPE_FROM_CLASS (object_class),
2457                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2458                          G_STRUCT_OFFSET (EvViewClass, external_link),
2459                          NULL, NULL,
2460                          g_cclosure_marshal_VOID__OBJECT,
2461                          G_TYPE_NONE, 1,
2462                          G_TYPE_OBJECT);
2463         signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup",
2464                          G_TYPE_FROM_CLASS (object_class),
2465                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
2466                          G_STRUCT_OFFSET (EvViewClass, popup_menu),
2467                          NULL, NULL,
2468                          g_cclosure_marshal_VOID__OBJECT,
2469                          G_TYPE_NONE, 1,
2470                          G_TYPE_OBJECT);
2471
2472         g_object_class_install_property (object_class,
2473                                          PROP_STATUS,
2474                                          g_param_spec_string ("status",
2475                                                               "Status Message",
2476                                                               "The status message",
2477                                                               NULL,
2478                                                               G_PARAM_READABLE));
2479
2480         g_object_class_install_property (object_class,
2481                                          PROP_FIND_STATUS,
2482                                          g_param_spec_string ("find-status",
2483                                                               "Find Status Message",
2484                                                               "The find status message",
2485                                                               NULL,
2486                                                               G_PARAM_READABLE));
2487
2488         g_object_class_install_property (object_class,
2489                                          PROP_CONTINUOUS,
2490                                          g_param_spec_boolean ("continuous",
2491                                                                "Continuous",
2492                                                                "Continuous scrolling mode",
2493                                                                TRUE,
2494                                                                G_PARAM_READWRITE));
2495
2496         g_object_class_install_property (object_class,
2497                                          PROP_DUAL_PAGE,
2498                                          g_param_spec_boolean ("dual-page",
2499                                                                "Dual Page",
2500                                                                "Two pages visible at once",
2501                                                                FALSE,
2502                                                                G_PARAM_READWRITE));
2503         g_object_class_install_property (object_class,
2504                                          PROP_FULLSCREEN,
2505                                          g_param_spec_boolean ("fullscreen",
2506                                                                "Full Screen",
2507                                                                "Draw page in a fullscreen fashion",
2508                                                                FALSE,
2509                                                                G_PARAM_READWRITE));
2510         g_object_class_install_property (object_class,
2511                                          PROP_PRESENTATION,
2512                                          g_param_spec_boolean ("presentation",
2513                                                                "Presentation",
2514                                                                "Draw page in presentation mode",
2515                                                                TRUE,
2516                                                                G_PARAM_READWRITE));
2517
2518         g_object_class_install_property (object_class,
2519                                          PROP_SIZING_MODE,
2520                                          g_param_spec_enum ("sizing-mode",
2521                                                             "Sizing Mode",
2522                                                             "Sizing Mode",
2523                                                             EV_TYPE_SIZING_MODE,
2524                                                             EV_SIZING_FIT_WIDTH,
2525                                                             G_PARAM_READWRITE));
2526
2527         g_object_class_install_property (object_class,
2528                                          PROP_ZOOM,
2529                                          g_param_spec_double ("zoom",
2530                                                               "Zoom factor",
2531                                                                "Zoom factor",
2532                                                                MIN_SCALE,
2533                                                                MAX_SCALE,
2534                                                                1.0,
2535                                                                G_PARAM_READWRITE));
2536         g_object_class_install_property (object_class,
2537                                          PROP_ROTATION,
2538                                          g_param_spec_double ("rotation",
2539                                                               "Rotation",
2540                                                                "Rotation",
2541                                                                0,
2542                                                                360,
2543                                                                0,
2544                                                                G_PARAM_READWRITE));
2545         g_object_class_install_property (object_class,
2546                                          PROP_HAS_SELECTION,
2547                                          g_param_spec_boolean ("has-selection",
2548                                                                "Has selection",
2549                                                                "The view has selections",
2550                                                                FALSE,
2551                                                                G_PARAM_READABLE));
2552
2553         binding_set = gtk_binding_set_by_class (class);
2554
2555         add_scroll_binding_keypad (binding_set, GDK_Left,  0, EV_SCROLL_STEP_BACKWARD, TRUE);
2556         add_scroll_binding_keypad (binding_set, GDK_Right, 0, EV_SCROLL_STEP_FORWARD,  TRUE);
2557         add_scroll_binding_keypad (binding_set, GDK_Left,  GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, TRUE);
2558         add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  TRUE);
2559         add_scroll_binding_keypad (binding_set, GDK_Up,    0, EV_SCROLL_STEP_BACKWARD, FALSE);
2560         add_scroll_binding_keypad (binding_set, GDK_Down,  0, EV_SCROLL_STEP_FORWARD,  FALSE);
2561         add_scroll_binding_keypad (binding_set, GDK_Up,    GDK_MOD1_MASK, EV_SCROLL_STEP_DOWN, FALSE);
2562         add_scroll_binding_keypad (binding_set, GDK_Down,  GDK_MOD1_MASK, EV_SCROLL_STEP_UP,  FALSE);
2563 }
2564
2565 static void
2566 ev_view_init (EvView *view)
2567 {
2568         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
2569
2570         view->spacing = 5;
2571         view->scale = 1.0;
2572         view->current_page = 0;
2573         view->pressed_button = -1;
2574         view->cursor = EV_VIEW_CURSOR_NORMAL;
2575         view->drag_info.in_drag = FALSE;
2576         view->selection_info.selections = NULL;
2577         view->selection_info.in_selection = FALSE;
2578         view->selection_info.in_drag = FALSE;
2579         view->selection_mode = EV_VIEW_SELECTION_TEXT;
2580         view->continuous = TRUE;
2581         view->dual_page = FALSE;
2582         view->presentation = FALSE;
2583         view->fullscreen = FALSE;
2584         view->sizing_mode = EV_SIZING_FIT_WIDTH;
2585         view->pending_scroll = SCROLL_TO_KEEP_POSITION;
2586         view->jump_to_find_result = TRUE;
2587 }
2588
2589 /*** Callbacks ***/
2590
2591 static void
2592 find_changed_cb (EvDocument *document, int page, EvView *view)
2593 {
2594         double percent;
2595         int n_pages;
2596
2597         percent = ev_document_find_get_progress
2598                         (EV_DOCUMENT_FIND (view->document));
2599         n_pages = ev_page_cache_get_n_pages (view->page_cache);
2600
2601         if (view->jump_to_find_result == TRUE) {
2602                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 0);
2603                 jump_to_find_result (view);
2604         }
2605         update_find_status_message (view, percent * n_pages >= n_pages - 1 );
2606         if (view->current_page == page)
2607                 gtk_widget_queue_draw (GTK_WIDGET (view));
2608 }
2609
2610 static void
2611 job_finished_cb (EvPixbufCache *pixbuf_cache,
2612                  EvView        *view)
2613 {
2614         gtk_widget_queue_draw (GTK_WIDGET (view));
2615 }
2616
2617 static void
2618 page_changed_cb (EvPageCache *page_cache,
2619                  int          new_page,
2620                  EvView      *view)
2621 {
2622         if (view->current_page != new_page) {
2623                 view->current_page = new_page;
2624                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2625                 gtk_widget_queue_resize (GTK_WIDGET (view));
2626         } else {
2627                 gtk_widget_queue_draw (GTK_WIDGET (view));
2628         }
2629
2630         if (EV_IS_DOCUMENT_FIND (view->document)) {
2631                 view->find_result = 0;
2632                 update_find_status_message (view, TRUE);
2633         }
2634 }
2635
2636 static void on_adjustment_value_changed (GtkAdjustment  *adjustment,
2637                                          EvView *view)
2638 {
2639         int dx = 0, dy = 0;
2640
2641         if (! GTK_WIDGET_REALIZED (view))
2642                 return;
2643
2644         if (view->hadjustment) {
2645                 dx = view->scroll_x - (int) view->hadjustment->value;
2646                 view->scroll_x = (int) view->hadjustment->value;
2647         } else {
2648                 view->scroll_x = 0;
2649         }
2650
2651         if (view->vadjustment) {
2652                 dy = view->scroll_y - (int) view->vadjustment->value;
2653                 view->scroll_y = (int) view->vadjustment->value;
2654         } else {
2655                 view->scroll_y = 0;
2656         }
2657
2658
2659         if (view->pending_resize)
2660                 gtk_widget_queue_draw (GTK_WIDGET (view));
2661         else
2662                 gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy);
2663
2664
2665         if (view->document)
2666                 view_update_range_and_current_page (view);
2667 }
2668
2669 GtkWidget*
2670 ev_view_new (void)
2671 {
2672         GtkWidget *view;
2673
2674         view = g_object_new (EV_TYPE_VIEW, NULL);
2675
2676         return view;
2677 }
2678
2679 static void
2680 setup_caches (EvView *view)
2681 {
2682         view->page_cache = ev_page_cache_get (view->document);
2683         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
2684         view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document);
2685         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
2686 }
2687
2688 static void
2689 clear_caches (EvView *view)
2690 {
2691         if (view->pixbuf_cache) {
2692                 g_object_unref (view->pixbuf_cache);
2693                 view->pixbuf_cache = NULL;
2694         }
2695
2696         if (view->page_cache) {
2697                 view->page_cache = NULL;
2698         }
2699 }
2700
2701 void
2702 ev_view_set_loading (EvView       *view,
2703                      gboolean      loading)
2704 {
2705         view->loading = loading;
2706         gtk_widget_queue_draw (GTK_WIDGET (view));
2707 }
2708
2709 void
2710 ev_view_set_document (EvView     *view,
2711                       EvDocument *document)
2712 {
2713         g_return_if_fail (EV_IS_VIEW (view));
2714
2715         view->loading = FALSE;
2716
2717         if (document != view->document) {
2718                 clear_caches (view);
2719
2720                 if (view->document) {
2721                         g_signal_handlers_disconnect_by_func (view->document,
2722                                                               find_changed_cb,
2723                                                               view);
2724                         g_object_unref (view->document);
2725                         view->page_cache = NULL;
2726
2727                 }
2728
2729                 view->document = document;
2730                 view->find_result = 0;
2731
2732                 if (view->document) {
2733                         g_object_ref (view->document);
2734                         if (EV_IS_DOCUMENT_FIND (view->document)) {
2735                                 g_signal_connect (view->document,
2736                                                   "find_changed",
2737                                                   G_CALLBACK (find_changed_cb),
2738                                                   view);
2739                         }
2740
2741                         setup_caches (view);
2742                 }
2743
2744                 gtk_widget_queue_resize (GTK_WIDGET (view));
2745         }
2746 }
2747
2748 /*** Zoom and sizing mode ***/
2749
2750 #define EPSILON 0.0000001
2751 void
2752 ev_view_set_zoom (EvView   *view,
2753                   double    factor,
2754                   gboolean  relative)
2755 {
2756         double scale;
2757
2758         if (relative)
2759                 scale = view->scale * factor;
2760         else
2761                 scale = factor;
2762
2763         scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
2764
2765         if (ABS (view->scale - scale) < EPSILON)
2766                 return;
2767
2768         view->scale = scale;
2769         view->pending_resize = TRUE;
2770
2771         gtk_widget_queue_resize (GTK_WIDGET (view));
2772
2773         g_object_notify (G_OBJECT (view), "zoom");
2774 }
2775
2776 double
2777 ev_view_get_zoom (EvView *view)
2778 {
2779         return view->scale;
2780 }
2781
2782 gboolean
2783 ev_view_get_continuous (EvView *view)
2784 {
2785         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2786
2787         return view->continuous;
2788 }
2789
2790 void
2791 ev_view_set_continuous (EvView   *view,
2792                         gboolean  continuous)
2793 {
2794         g_return_if_fail (EV_IS_VIEW (view));
2795
2796         continuous = continuous != FALSE;
2797
2798         if (view->continuous != continuous) {
2799                 view->continuous = continuous;
2800                 view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2801                 gtk_widget_queue_resize (GTK_WIDGET (view));
2802         }
2803
2804         g_object_notify (G_OBJECT (view), "continuous");
2805 }
2806
2807 gboolean
2808 ev_view_get_dual_page (EvView *view)
2809 {
2810         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2811
2812         return view->dual_page;
2813 }
2814
2815 void
2816 ev_view_set_dual_page (EvView   *view,
2817                        gboolean  dual_page)
2818 {
2819         g_return_if_fail (EV_IS_VIEW (view));
2820
2821         dual_page = dual_page != FALSE;
2822
2823         if (view->dual_page == dual_page)
2824                 return;
2825
2826         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2827         view->dual_page = dual_page;
2828         /* FIXME: if we're keeping the pixbuf cache around, we should extend the
2829          * preload_cache_size to be 2 if dual_page is set.
2830          */
2831         gtk_widget_queue_resize (GTK_WIDGET (view));
2832
2833         g_object_notify (G_OBJECT (view), "dual-page");
2834 }
2835
2836 void
2837 ev_view_set_fullscreen (EvView   *view,
2838                          gboolean  fullscreen)
2839 {
2840         g_return_if_fail (EV_IS_VIEW (view));
2841
2842         fullscreen = fullscreen != FALSE;
2843
2844         if (view->fullscreen == fullscreen)
2845                 return;
2846
2847         view->fullscreen = fullscreen;
2848         gtk_widget_queue_resize (GTK_WIDGET (view));
2849
2850         g_object_notify (G_OBJECT (view), "fullscreen");
2851 }
2852
2853 gboolean
2854 ev_view_get_fullscreen (EvView *view)
2855 {
2856         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2857
2858         return view->fullscreen;
2859 }
2860
2861 void
2862 ev_view_set_presentation (EvView   *view,
2863                           gboolean  presentation)
2864 {
2865         g_return_if_fail (EV_IS_VIEW (view));
2866
2867         presentation = presentation != FALSE;
2868
2869         if (view->presentation == presentation)
2870                 return;
2871
2872         view->presentation = presentation;
2873         view->pending_scroll = SCROLL_TO_PAGE_POSITION;
2874         gtk_widget_queue_resize (GTK_WIDGET (view));
2875
2876         if (GTK_WIDGET_REALIZED (view)) {
2877                 if (view->presentation)
2878                         gdk_window_set_background (GTK_WIDGET(view)->window,
2879                                                    &GTK_WIDGET (view)->style->black);
2880                 else
2881                         gdk_window_set_background (GTK_WIDGET(view)->window,
2882                                                    &GTK_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
2883         }
2884
2885
2886         g_object_notify (G_OBJECT (view), "presentation");
2887 }
2888
2889 gboolean
2890 ev_view_get_presentation (EvView *view)
2891 {
2892         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
2893
2894         return view->presentation;
2895 }
2896
2897 void
2898 ev_view_set_sizing_mode (EvView       *view,
2899                          EvSizingMode  sizing_mode)
2900 {
2901         g_return_if_fail (EV_IS_VIEW (view));
2902
2903         if (view->sizing_mode == sizing_mode)
2904                 return;
2905
2906         view->sizing_mode = sizing_mode;
2907         gtk_widget_queue_resize (GTK_WIDGET (view));
2908
2909         g_object_notify (G_OBJECT (view), "sizing-mode");
2910 }
2911
2912 EvSizingMode
2913 ev_view_get_sizing_mode (EvView *view)
2914 {
2915         g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
2916
2917         return view->sizing_mode;
2918 }
2919
2920 gboolean
2921 ev_view_can_zoom_in (EvView *view)
2922 {
2923         return view->scale * ZOOM_IN_FACTOR <= MAX_SCALE;
2924 }
2925
2926 gboolean
2927 ev_view_can_zoom_out (EvView *view)
2928 {
2929         return view->scale * ZOOM_OUT_FACTOR >= MIN_SCALE;
2930 }
2931
2932 void
2933 ev_view_zoom_in (EvView *view)
2934 {
2935         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2936
2937         view->pending_scroll = SCROLL_TO_CENTER;
2938         ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
2939 }
2940
2941 void
2942 ev_view_zoom_out (EvView *view)
2943 {
2944         g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
2945
2946         view->pending_scroll = SCROLL_TO_CENTER;
2947         ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE);
2948 }
2949
2950 void
2951 ev_view_rotate_right (EvView *view)
2952 {
2953         int rotation = view->rotation + 90;
2954
2955         if (rotation >= 360) {
2956                 rotation -= 360;
2957         }
2958
2959         ev_view_set_rotation (view, rotation);
2960 }
2961
2962 void
2963 ev_view_rotate_left (EvView *view)
2964 {
2965         int rotation = view->rotation - 90;
2966
2967         if (rotation < 0) {
2968                 rotation += 360;
2969         }
2970
2971         ev_view_set_rotation (view, rotation);
2972 }
2973
2974 void
2975 ev_view_set_rotation (EvView *view, int rotation)
2976 {
2977         view->rotation = rotation;
2978
2979         if (view->pixbuf_cache) {
2980                 ev_pixbuf_cache_clear (view->pixbuf_cache);
2981                 gtk_widget_queue_resize (GTK_WIDGET (view));
2982         }
2983
2984         if (rotation != 0)
2985                 clear_selection (view);
2986
2987         g_object_notify (G_OBJECT (view), "rotation");
2988 }
2989
2990 int
2991 ev_view_get_rotation (EvView *view)
2992 {
2993         return view->rotation;
2994 }
2995
2996 static double
2997 zoom_for_size_fit_width (int doc_width,
2998                          int doc_height,
2999                          int target_width,
3000                          int target_height,
3001                          int vsb_width)
3002 {
3003         double scale;
3004
3005         scale = (double)target_width / doc_width;
3006
3007         if (doc_height * scale > target_height)
3008                 scale = (double) (target_width - vsb_width) / doc_width;
3009
3010         return scale;
3011 }
3012
3013 static double
3014 zoom_for_size_fit_height (int doc_width,
3015                           int doc_height,
3016                           int target_width,
3017                           int target_height,
3018                           int vsb_height)
3019 {
3020         double scale;
3021
3022         scale = (double)target_height / doc_height;
3023
3024         if (doc_width * scale > target_width)
3025                 scale = (double) (target_height - vsb_height) / doc_height;
3026
3027         return scale;
3028 }
3029
3030 static double
3031 zoom_for_size_best_fit (int doc_width,
3032                         int doc_height,
3033                         int target_width,
3034                         int target_height,
3035                         int vsb_width,
3036                         int hsb_width)
3037 {
3038         double w_scale;
3039         double h_scale;
3040
3041         w_scale = (double)target_width / doc_width;
3042         h_scale = (double)target_height / doc_height;
3043
3044         if (doc_height * w_scale > target_height)
3045                 w_scale = (double) (target_width - vsb_width) / doc_width;
3046         if (doc_width * h_scale > target_width)
3047                 h_scale = (double) (target_height - hsb_width) / doc_height;
3048
3049         return MIN (w_scale, h_scale);
3050 }
3051
3052
3053 static void
3054 ev_view_zoom_for_size_presentation (EvView *view,
3055                                     int     width,
3056                                     int     height)
3057 {
3058         int doc_width, doc_height;
3059         gdouble scale;
3060
3061         ev_page_cache_get_size (view->page_cache,
3062                                 view->current_page,
3063                                 view->rotation,
3064                                 1.0,
3065                                 &doc_width,
3066                                 &doc_height);
3067         scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
3068         ev_view_set_zoom (view, scale, FALSE);
3069 }
3070
3071 static void
3072 ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
3073                            int     width,
3074                            int     height,
3075                            int     vsb_width,
3076                            int     hsb_height)
3077 {
3078         int doc_width, doc_height;
3079         GtkBorder border;
3080         gdouble scale;
3081
3082         ev_page_cache_get_max_width (view->page_cache,
3083                                      view->rotation,
3084                                      1.0,
3085                                      &doc_width);
3086         ev_page_cache_get_max_height (view->page_cache,
3087                                       view->rotation,
3088                                       1.0,
3089                                       &doc_height);
3090         compute_border (view, doc_width, doc_height, &border);
3091
3092         doc_width = doc_width * 2;
3093         width -= (2 * (border.left + border.right) + 3 * view->spacing);
3094         height -= (border.top + border.bottom + 2 * view->spacing - 1);
3095
3096         /* FIXME: We really need to calculate the overall height here, not the
3097          * page height.  We assume there's always a vertical scrollbar for
3098          * now.  We need to fix this. */
3099         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3100                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
3101         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3102                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
3103         else
3104                 g_assert_not_reached ();
3105
3106         ev_view_set_zoom (view, scale, FALSE);
3107 }
3108
3109 static void
3110 ev_view_zoom_for_size_continuous (EvView *view,
3111                                   int     width,
3112                                   int     height,
3113                                   int     vsb_width,
3114                                   int     hsb_height)
3115 {
3116         int doc_width, doc_height;
3117         GtkBorder border;
3118         gdouble scale;
3119
3120         ev_page_cache_get_max_width (view->page_cache,
3121                                      view->rotation,
3122                                      1.0,
3123                                      &doc_width);
3124         ev_page_cache_get_max_height (view->page_cache,
3125                                       view->rotation,
3126                                       1.0,
3127                                       &doc_height);
3128         compute_border (view, doc_width, doc_height, &border);
3129
3130         width -= (border.left + border.right + 2 * view->spacing);
3131         height -= (border.top + border.bottom + 2 * view->spacing - 1);
3132
3133         /* FIXME: We really need to calculate the overall height here, not the
3134          * page height.  We assume there's always a vertical scrollbar for
3135          * now.  We need to fix this. */
3136         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3137                 scale = zoom_for_size_fit_width (doc_width, doc_height, width - vsb_width, height, 0);
3138         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3139                 scale = zoom_for_size_best_fit (doc_width, doc_height, width - vsb_width, height, 0, hsb_height);
3140         else
3141                 g_assert_not_reached ();
3142
3143         ev_view_set_zoom (view, scale, FALSE);
3144 }
3145
3146 static void
3147 ev_view_zoom_for_size_dual_page (EvView *view,
3148                                  int     width,
3149                                  int     height,
3150                                  int     vsb_width,
3151                                  int     hsb_height)
3152 {
3153         GtkBorder border;
3154         gint doc_width, doc_height;
3155         gdouble scale;
3156         gint other_page;
3157
3158         other_page = view->current_page ^ 1;
3159
3160         /* Find the largest of the two. */
3161         ev_page_cache_get_size (view->page_cache,
3162                                 view->current_page,
3163                                 view->rotation,
3164                                 1.0,
3165                                 &doc_width, &doc_height);
3166
3167         if (other_page < ev_page_cache_get_n_pages (view->page_cache)) {
3168                 gint width_2, height_2;
3169                 ev_page_cache_get_size (view->page_cache,
3170                                         other_page,
3171                                         view->rotation,
3172                                         1.0,
3173                                         &width_2, &height_2);
3174                 if (width_2 > doc_width)
3175                         doc_width = width_2;
3176                 if (height_2 > doc_height)
3177                         doc_height = height_2;
3178         }
3179         compute_border (view, doc_width, doc_height, &border);
3180
3181         doc_width = doc_width * 2;
3182         width -= ((border.left + border.right)* 2 + 3 * view->spacing);
3183         height -= (border.top + border.bottom + 2 * view->spacing);
3184
3185         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3186                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
3187         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3188                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
3189         else
3190                 g_assert_not_reached ();
3191
3192         ev_view_set_zoom (view, scale, FALSE);
3193 }
3194
3195 static void
3196 ev_view_zoom_for_size_single_page (EvView *view,
3197                                    int     width,
3198                                    int     height,
3199                                    int     vsb_width,
3200                                    int     hsb_height)
3201 {
3202         int doc_width, doc_height;
3203         GtkBorder border;
3204         gdouble scale;
3205
3206         ev_page_cache_get_size (view->page_cache,
3207                                 view->current_page,
3208                                 view->rotation,
3209                                 1.0,
3210                                 &doc_width,
3211                                 &doc_height);
3212         /* Get an approximate border */
3213         compute_border (view, width, height, &border);
3214
3215         width -= (border.left + border.right + 2 * view->spacing);
3216         height -= (border.top + border.bottom + 2 * view->spacing);
3217
3218         if (view->sizing_mode == EV_SIZING_FIT_WIDTH)
3219                 scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width);
3220         else if (view->sizing_mode == EV_SIZING_BEST_FIT)
3221                 scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height);
3222         else
3223                 g_assert_not_reached ();
3224
3225         ev_view_set_zoom (view, scale, FALSE);
3226 }
3227
3228 void
3229 ev_view_set_zoom_for_size (EvView *view,
3230                            int     width,
3231                            int     height,
3232                            int     vsb_width,
3233                            int     hsb_height)
3234 {
3235         g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
3236                           view->sizing_mode == EV_SIZING_BEST_FIT);
3237         g_return_if_fail (width >= 0);
3238         g_return_if_fail (height >= 0);
3239
3240         if (view->document == NULL)
3241                 return;
3242
3243         if (view->presentation)
3244                 ev_view_zoom_for_size_presentation (view, width, height);
3245         else if (view->continuous && view->dual_page)
3246                 ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
3247         else if (view->continuous)
3248                 ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
3249         else if (view->dual_page)
3250                 ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height);
3251         else
3252                 ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height);
3253 }
3254
3255 /*** Status text messages ***/
3256
3257 const char *
3258 ev_view_get_status (EvView *view)
3259 {
3260         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
3261
3262         return view->status;
3263 }
3264
3265 static void
3266 ev_view_set_status (EvView *view, const char *message)
3267 {
3268         g_return_if_fail (EV_IS_VIEW (view));
3269
3270         if (message != view->status) {
3271                 g_free (view->status);
3272                 view->status = g_strdup (message);
3273                 g_object_notify (G_OBJECT (view), "status");
3274         }
3275 }
3276
3277 static void
3278 update_find_status_message (EvView *view, gboolean this_page)
3279 {
3280         char *message;
3281
3282         if (this_page) {
3283                 int results;
3284
3285                 results = ev_document_find_get_n_results
3286                                 (EV_DOCUMENT_FIND (view->document),
3287                                  view->current_page);
3288                 /* TRANS: Sometimes this could be better translated as
3289                    "%d hit(s) on this page".  Therefore this string
3290                    contains plural cases. */
3291                 message = g_strdup_printf (ngettext ("%d found on this page",
3292                                                      "%d found on this page",
3293                                                      results),
3294                                            results);
3295         } else {
3296                 double percent;
3297
3298                 percent = ev_document_find_get_progress
3299                                 (EV_DOCUMENT_FIND (view->document));
3300                 message = g_strdup_printf (_("%3d%% remaining to search"),
3301                                            (int) ((1.0 - percent) * 100));
3302
3303         }
3304         ev_view_set_find_status (view, message);
3305         g_free (message);
3306 }
3307
3308 const char *
3309 ev_view_get_find_status (EvView *view)
3310 {
3311         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
3312
3313         return view->find_status;
3314 }
3315
3316 static void
3317 ev_view_set_find_status (EvView *view, const char *message)
3318 {
3319         g_return_if_fail (EV_IS_VIEW (view));
3320
3321         g_free (view->find_status);
3322         view->find_status = g_strdup (message);
3323         g_object_notify (G_OBJECT (view), "find-status");
3324 }
3325
3326 /*** Find ***/
3327
3328 static void
3329 jump_to_find_result (EvView *view)
3330 {
3331         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3332         EvRectangle rect;
3333         GdkRectangle view_rect;
3334         int n_results;
3335         int page = view->current_page;
3336
3337         n_results = ev_document_find_get_n_results (find, page);
3338
3339         if (n_results > 0  && view->find_result < n_results) {
3340                 ev_document_find_get_result
3341                         (find, page, view->find_result, &rect);
3342
3343                 doc_rect_to_view_rect (view, page, &rect, &view_rect);
3344                 ensure_rectangle_is_visible (view, &view_rect);
3345         }
3346 }
3347
3348 /**
3349  * jump_to_find_page
3350  * @view: #EvView instance
3351  * @direction: Direction to look
3352  * @shift: Shift from current page
3353  *
3354  * Jumps to the first page that has occurences of searched word.
3355  * Uses a direction where to look and a shift from current page.
3356  *
3357  */
3358 static void
3359 jump_to_find_page (EvView *view, EvViewFindDirection direction, gint shift)
3360 {
3361         int n_pages, i;
3362
3363         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3364
3365         for (i = 0; i < n_pages; i++) {
3366                 int has_results;
3367                 int page;
3368
3369                 if (direction == EV_VIEW_FIND_NEXT)
3370                         page = view->current_page + i;
3371                 else
3372                         page = view->current_page - i;
3373                 page += shift;
3374
3375                 if (page >= n_pages) {
3376                         page = page - n_pages;
3377                 }
3378                 if (page < 0)
3379                         page = page + n_pages;
3380
3381                 has_results = ev_document_find_page_has_results
3382                                 (EV_DOCUMENT_FIND (view->document), page);
3383                 if (has_results == -1) {
3384                         break;
3385                 } else if (has_results == 1) {
3386                         ev_page_cache_set_current_page (view->page_cache, page);
3387                         break;
3388                 }
3389         }
3390 }
3391
3392 gboolean
3393 ev_view_can_find_next (EvView *view)
3394 {
3395         if (EV_IS_DOCUMENT_FIND (view->document)) {
3396                 EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3397                 int i, n_pages;
3398
3399                 n_pages = ev_page_cache_get_n_pages (view->page_cache);
3400                 for (i = 0; i < n_pages; i++) {
3401                         if (ev_document_find_get_n_results (find, i) > 0) {
3402                                 return TRUE;
3403                         }
3404                 }
3405         }
3406
3407         return FALSE;
3408 }
3409
3410 void
3411 ev_view_find_next (EvView *view)
3412 {
3413         int n_results, n_pages;
3414         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3415
3416         n_results = ev_document_find_get_n_results (find, view->current_page);
3417
3418         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3419
3420         view->find_result++;
3421
3422         if (view->find_result >= n_results) {
3423
3424                 view->find_result = 0;
3425                 jump_to_find_page (view, EV_VIEW_FIND_NEXT, 1);
3426                 jump_to_find_result (view);
3427         } else {
3428                 jump_to_find_result (view);
3429                 gtk_widget_queue_draw (GTK_WIDGET (view));
3430         }
3431 }
3432
3433 void
3434 ev_view_find_previous (EvView *view)
3435 {
3436         int n_results, n_pages;
3437         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
3438         EvPageCache *page_cache;
3439
3440         page_cache = ev_page_cache_get (view->document);
3441
3442         n_results = ev_document_find_get_n_results (find, view->current_page);
3443
3444         n_pages = ev_page_cache_get_n_pages (page_cache);
3445
3446         view->find_result--;
3447
3448         if (view->find_result < 0) {
3449
3450                 jump_to_find_page (view, EV_VIEW_FIND_PREV, -1);
3451                 view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1;
3452                 jump_to_find_result (view);
3453         } else {
3454                 jump_to_find_result (view);
3455                 gtk_widget_queue_draw (GTK_WIDGET (view));
3456         }
3457 }
3458
3459 void ev_view_search_changed (EvView *view)
3460 {
3461         /* search string has changed, focus on new search result */
3462         view->jump_to_find_result = TRUE;
3463 }
3464
3465 /*** Selections ***/
3466
3467 /* compute_new_selection_rect/text calculates the area currently selected by
3468  * view_rect.  each handles a different mode;
3469  */
3470 static GList *
3471 compute_new_selection_rect (EvView       *view,
3472                             GdkPoint     *start,
3473                             GdkPoint     *stop)
3474 {
3475         GdkRectangle view_rect;
3476         int n_pages, i;
3477         GList *list = NULL;
3478
3479         g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
3480
3481         view_rect.x = MIN (start->x, stop->x);
3482         view_rect.y = MIN (start->y, stop->y);
3483         view_rect.width = MAX (start->x, stop->x) - view_rect.x;
3484         view_rect.width = MAX (start->y, stop->y) - view_rect.y;
3485
3486         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3487
3488         for (i = 0; i < n_pages; i++) {
3489                 GdkRectangle page_area;
3490                 GtkBorder border;
3491
3492                 if (get_page_extents (view, i, &page_area, &border)) {
3493                         GdkRectangle overlap;
3494
3495                         if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
3496                                 EvViewSelection *selection;
3497
3498                                 selection = g_new0 (EvViewSelection, 1);
3499                                 selection->page = i;
3500                                 view_rect_to_doc_rect (view, &overlap, &page_area,
3501                                                        &(selection->rect));
3502
3503                                 list = g_list_append (list, selection);
3504                         }
3505                 }
3506         }
3507
3508         return list;
3509 }
3510
3511 static gboolean
3512 gdk_rectangle_point_in (GdkRectangle *rectangle,
3513                         GdkPoint     *point)
3514 {
3515         return rectangle->x <= point->x &&
3516                 rectangle->y <= point->y &&
3517                 point->x < rectangle->x + rectangle->width &&
3518                 point->y < rectangle->y + rectangle->height;
3519 }
3520
3521 static GList *
3522 compute_new_selection_text (EvView   *view,
3523                             GdkPoint *start,
3524                             GdkPoint *stop)
3525 {
3526         int n_pages, i, first, last;
3527         GList *list = NULL;
3528         EvViewSelection *selection;
3529         gint width, height;
3530         int start_page, end_page;
3531
3532         g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT);
3533
3534         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3535
3536         /* First figure out the range of pages the selection
3537          * affects. */
3538         first = n_pages;
3539         last = 0;
3540         if (view->continuous) {
3541                 start_page = 0;
3542                 end_page = n_pages;
3543         } else if (view->dual_page) {
3544                 start_page = view->start_page;
3545                 end_page = view->end_page + 1;
3546         } else {
3547                 start_page = view->current_page;
3548                 end_page = view->current_page + 1;
3549         }
3550
3551         for (i = start_page; i < end_page; i++) {
3552                 GdkRectangle page_area;
3553                 GtkBorder border;
3554
3555                 get_page_extents (view, i, &page_area, &border);
3556                 if (gdk_rectangle_point_in (&page_area, start) ||
3557                     gdk_rectangle_point_in (&page_area, stop)) {
3558                         if (first == n_pages)
3559                                 first = i;
3560                         last = i;
3561                 }
3562
3563         }
3564
3565
3566
3567         /* Now create a list of EvViewSelection's for the affected
3568          * pages.  This could be an empty list, a list of just one
3569          * page or a number of pages.*/
3570         for (i = first; i < last + 1; i++) {
3571                 GdkRectangle page_area;
3572                 GtkBorder border;
3573                 GdkPoint *point;
3574
3575                 ev_page_cache_get_size (view->page_cache, i,
3576                                         view->rotation,
3577                                         1.0, &width, &height);
3578
3579                 selection = g_new0 (EvViewSelection, 1);
3580                 selection->page = i;
3581                 selection->rect.x1 = selection->rect.y1 = 0;
3582                 selection->rect.x2 = width;
3583                 selection->rect.y2 = height;
3584
3585                 get_page_extents (view, i, &page_area, &border);
3586
3587                 if (gdk_rectangle_point_in (&page_area, start))
3588                         point = start;
3589                 else
3590                         point = stop;
3591
3592                 if (i == first)
3593                         view_point_to_doc_point (view, point, &page_area,
3594                                                  &selection->rect.x1,
3595                                                  &selection->rect.y1);
3596
3597                 /* If the selection is contained within just one page,
3598                  * make sure we don't write 'start' into both points
3599                  * in selection->rect. */
3600                 if (first == last)
3601                         point = stop;
3602
3603                 if (i == last)
3604                         view_point_to_doc_point (view, point, &page_area,
3605                                                  &selection->rect.x2,
3606                                                  &selection->rect.y2);
3607
3608                 list = g_list_append (list, selection);
3609         }
3610
3611         return list;
3612 }
3613
3614 /* This function takes the newly calculated list, and figures out which regions
3615  * have changed.  It then queues a redraw approporiately.
3616  */
3617 static void
3618 merge_selection_region (EvView *view,
3619                         GList  *new_list)
3620 {
3621         GList *old_list;
3622         GList *new_list_ptr, *old_list_ptr;
3623
3624         /* Update the selection */
3625         old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache);
3626         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3627         view->selection_info.selections = new_list;
3628         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list);
3629         g_object_notify (G_OBJECT (view), "has-selection");
3630
3631         new_list_ptr = new_list;
3632         old_list_ptr = old_list;
3633
3634         while (new_list_ptr || old_list_ptr) {
3635                 EvViewSelection *old_sel, *new_sel;
3636                 int cur_page;
3637                 GdkRegion *region = NULL;
3638
3639                 new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL;
3640                 old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL;
3641
3642                 /* Assume that the lists are in order, and we run through them
3643                  * comparing them, one page at a time.  We come out with the
3644                  * first page we see. */
3645                 if (new_sel && old_sel) {
3646                         if (new_sel->page < old_sel->page) {
3647                                 new_list_ptr = new_list_ptr->next;
3648                                 old_sel = NULL;
3649                         } else if (new_sel->page > old_sel->page) {
3650                                 old_list_ptr = old_list_ptr->next;
3651                                 new_sel = NULL;
3652                         } else {
3653                                 new_list_ptr = new_list_ptr->next;
3654                                 old_list_ptr = old_list_ptr->next;
3655                         }
3656                 } else if (new_sel) {
3657                         new_list_ptr = new_list_ptr->next;
3658                 } else if (old_sel) {
3659                         old_list_ptr = old_list_ptr->next;
3660                 }
3661
3662                 g_assert (new_sel || old_sel);
3663
3664                 /* is the page we're looking at on the screen?*/
3665                 cur_page = new_sel ? new_sel->page : old_sel->page;
3666                 if (cur_page < view->start_page || cur_page > view->end_page)
3667                         continue;
3668
3669                 /* seed the cache with a new page.  We are going to need the new
3670                  * region too. */
3671                 if (new_sel) {
3672                         GdkRegion *tmp_region = NULL;
3673                         ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
3674                                                               cur_page,
3675                                                               view->scale,
3676                                                               &tmp_region);
3677                         if (tmp_region) {
3678                                 new_sel->covered_region = gdk_region_copy (tmp_region);
3679                         }
3680                 }
3681
3682                 /* Now we figure out what needs redrawing */
3683                 if (old_sel && new_sel) {
3684                         if (old_sel->covered_region &&
3685                             new_sel->covered_region) {
3686                                 /* We only want to redraw the areas that have
3687                                  * changed, so we xor the old and new regions
3688                                  * and redraw if it's different */
3689                                 region = gdk_region_copy (old_sel->covered_region);
3690                                 gdk_region_xor (region, new_sel->covered_region);
3691                                 if (gdk_region_empty (region)) {
3692                                         gdk_region_destroy (region);
3693                                         region = NULL;
3694                                 }
3695                         } else if (old_sel->covered_region) {
3696                                 region = gdk_region_copy (old_sel->covered_region);
3697                         } else if (new_sel->covered_region) {
3698                                 region = gdk_region_copy (new_sel->covered_region);
3699                         }
3700                 } else if (old_sel && !new_sel) {
3701                         if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) {
3702                                 region = gdk_region_copy (old_sel->covered_region);
3703                         }
3704                 } else if (!old_sel && new_sel) {
3705                         if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) {
3706                                 region = gdk_region_copy (new_sel->covered_region);
3707                         }
3708                 } else {
3709                         g_assert_not_reached ();
3710                 }
3711
3712                 /* Redraw the damaged region! */
3713                 if (region) {
3714                         GdkRectangle page_area;
3715                         GtkBorder border;
3716
3717                         get_page_extents (view, cur_page, &page_area, &border);
3718                         gdk_region_offset (region,
3719                                            page_area.x + border.left - view->scroll_x,
3720                                            page_area.y + border.top - view->scroll_y);
3721                         gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE);
3722                         gdk_region_destroy (region);
3723                 }
3724         }
3725
3726         /* Free the old list, now that we're done with it. */
3727         g_list_foreach (old_list, (GFunc) selection_free, NULL);
3728 }
3729
3730 static void
3731 compute_selections (EvView   *view,
3732                     GdkPoint *start,
3733                     GdkPoint *stop)
3734 {
3735         GList *list;
3736
3737         if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE)
3738                 list = compute_new_selection_rect (view, start, stop);
3739         else
3740                 list = compute_new_selection_text (view, start, stop);
3741         merge_selection_region (view, list);
3742 }
3743
3744 /* Free's the selection.  It's up to the caller to queue redraws if needed.
3745  */
3746 static void
3747 selection_free (EvViewSelection *selection)
3748 {
3749         if (selection->covered_region)
3750                 gdk_region_destroy (selection->covered_region);
3751         g_free (selection);
3752 }
3753
3754 static void
3755 clear_selection (EvView *view)
3756 {
3757         g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL);
3758         view->selection_info.selections = NULL;
3759         view->selection_info.in_selection = FALSE;
3760         g_object_notify (G_OBJECT (view), "has-selection");
3761 }
3762
3763
3764 void
3765 ev_view_select_all (EvView *view)
3766 {
3767         int n_pages, i;
3768
3769         /* Disable selection on rotated pages for the 0.4.0 series */
3770         if (view->rotation != 0)
3771                 return;
3772
3773         clear_selection (view);
3774
3775         n_pages = ev_page_cache_get_n_pages (view->page_cache);
3776         for (i = 0; i < n_pages; i++) {
3777                 int width, height;
3778                 EvViewSelection *selection;
3779
3780                 ev_page_cache_get_size (view->page_cache,
3781                                         i,
3782                                         view->rotation,
3783                                         1.0, &width, &height);
3784
3785                 selection = g_new0 (EvViewSelection, 1);
3786                 selection->page = i;
3787                 selection->rect.x1 = selection->rect.y1 = 0;
3788                 selection->rect.x2 = width;
3789                 selection->rect.y2 = height;
3790
3791                 view->selection_info.selections = g_list_append (view->selection_info.selections, selection);
3792         }
3793
3794         ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections);
3795         g_object_notify (G_OBJECT (view), "has-selection");
3796         gtk_widget_queue_draw (GTK_WIDGET (view));
3797 }
3798
3799 gboolean
3800 ev_view_get_has_selection (EvView *view)
3801 {
3802         return view->selection_info.selections != NULL;
3803 }
3804
3805 static char *
3806 get_selected_text (EvView *ev_view)
3807 {
3808         GString *text;
3809         GList *l;
3810
3811         text = g_string_new (NULL);
3812
3813         ev_document_doc_mutex_lock ();
3814
3815         for (l = ev_view->selection_info.selections; l != NULL; l = l->next) {
3816                 EvViewSelection *selection = (EvViewSelection *)l->data;
3817                 char *tmp;
3818
3819                 tmp = ev_document_get_text (ev_view->document,
3820                                             selection->page,
3821                                             &selection->rect);
3822                 g_string_append (text, tmp);
3823                 g_free (tmp);
3824         }
3825
3826         ev_document_doc_mutex_unlock ();
3827
3828         return g_string_free (text, FALSE);
3829 }
3830
3831 void
3832 ev_view_copy (EvView *ev_view)
3833 {
3834         GtkClipboard *clipboard;
3835         char *text;
3836
3837         if (!ev_document_can_get_text (ev_view->document)) {
3838                 return;
3839         }
3840
3841         text = get_selected_text (ev_view);
3842         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3843                                               GDK_SELECTION_CLIPBOARD);
3844         gtk_clipboard_set_text (clipboard, text, -1);
3845         g_free (text);
3846 }
3847
3848 static void
3849 ev_view_primary_get_cb (GtkClipboard     *clipboard,
3850                         GtkSelectionData *selection_data,
3851                         guint             info,
3852                         gpointer          data)
3853 {
3854         EvView *ev_view = EV_VIEW (data);
3855         char *text;
3856
3857         if (!ev_document_can_get_text (ev_view->document)) {
3858                 return;
3859         }
3860
3861         text = get_selected_text (ev_view);
3862         gtk_selection_data_set_text (selection_data, text, -1);
3863         g_free (text);
3864 }
3865
3866 static void
3867 ev_view_primary_clear_cb (GtkClipboard *clipboard,
3868                           gpointer      data)
3869 {
3870         EvView *view = EV_VIEW (data);
3871
3872         clear_selection (view);
3873 }
3874
3875 static void
3876 ev_view_update_primary_selection (EvView *ev_view)
3877 {
3878         GtkClipboard *clipboard;
3879
3880         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
3881                                               GDK_SELECTION_PRIMARY);
3882
3883         if (ev_view->selection_info.selections) {
3884                 if (!gtk_clipboard_set_with_owner (clipboard,
3885                                                    targets,
3886                                                    G_N_ELEMENTS (targets),
3887                                                    ev_view_primary_get_cb,
3888                                                    ev_view_primary_clear_cb,
3889                                                    G_OBJECT (ev_view)))
3890                         ev_view_primary_clear_cb (clipboard, ev_view);
3891         } else {
3892                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
3893                         gtk_clipboard_clear (clipboard);
3894         }
3895 }
3896
3897 /*** Cursor operations ***/
3898
3899 static GdkCursor *
3900 ev_view_create_invisible_cursor(void)
3901 {
3902        GdkBitmap *empty;
3903        GdkColor black = { 0, 0, 0, 0 };
3904        static char bits[] = { 0x00 };
3905
3906        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
3907
3908        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
3909 }
3910
3911 static void
3912 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
3913 {
3914         GdkCursor *cursor = NULL;
3915         GdkDisplay *display;
3916         GtkWidget *widget;
3917
3918         if (view->cursor == new_cursor) {
3919                 return;
3920         }
3921
3922         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
3923         display = gtk_widget_get_display (widget);
3924         view->cursor = new_cursor;
3925
3926         switch (new_cursor) {
3927                 case EV_VIEW_CURSOR_NORMAL:
3928                         gdk_window_set_cursor (widget->window, NULL);
3929                         break;
3930                 case EV_VIEW_CURSOR_IBEAM:
3931                         cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
3932                         break;
3933                 case EV_VIEW_CURSOR_LINK:
3934                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
3935                         break;
3936                 case EV_VIEW_CURSOR_WAIT:
3937                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
3938                         break;
3939                 case EV_VIEW_CURSOR_HIDDEN:
3940                         cursor = ev_view_create_invisible_cursor ();
3941                         break;
3942                 case EV_VIEW_CURSOR_DRAG:
3943                         cursor = gdk_cursor_new_for_display (display, GDK_FLEUR);
3944                         break;
3945         }
3946
3947         if (cursor) {
3948                 gdk_window_set_cursor (widget->window, cursor);
3949                 gdk_cursor_unref (cursor);
3950                 gdk_flush();
3951         }
3952 }
3953
3954 void
3955 ev_view_hide_cursor (EvView *view)
3956 {
3957        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
3958 }
3959
3960 void
3961 ev_view_show_cursor (EvView *view)
3962 {
3963        ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
3964 }
3965
3966 gboolean
3967 ev_view_next_page (EvView *view)
3968 {
3969         int page;
3970
3971         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3972
3973         page = ev_page_cache_get_current_page (view->page_cache);
3974
3975         if (view->dual_page && !view->presentation)
3976                 page = page + 2;
3977         else
3978                 page = page + 1;
3979
3980         if (page < ev_page_cache_get_n_pages (view->page_cache)) {
3981                 ev_page_cache_set_current_page (view->page_cache, page);
3982                 return TRUE;
3983         } else if (ev_view_get_dual_page (view) && page == ev_page_cache_get_n_pages (view->page_cache)) {
3984                 ev_page_cache_set_current_page (view->page_cache, page - 1);
3985                 return TRUE;
3986         } else {
3987                 return FALSE;
3988         }
3989 }
3990
3991 gboolean
3992 ev_view_previous_page (EvView *view)
3993 {
3994         int page;
3995
3996         g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
3997
3998         page = ev_page_cache_get_current_page (view->page_cache);
3999
4000         if (view->dual_page && !view->presentation)
4001                 page = page - 2;
4002         else
4003                 page = page - 1;
4004
4005         if (page >= 0) {
4006                 ev_page_cache_set_current_page (view->page_cache, page);
4007                 return TRUE;
4008         } else if (ev_view_get_dual_page (view) && page == -1) {
4009                 ev_page_cache_set_current_page (view->page_cache, 0);
4010                 return TRUE;
4011         } else {
4012                 return FALSE;
4013         }
4014 }
4015
4016 /*** Enum description for usage in signal ***/
4017
4018 GType
4019 ev_sizing_mode_get_type (void)
4020 {
4021   static GType etype = 0;
4022   if (etype == 0) {
4023     static const GEnumValue values[] = {
4024       { EV_SIZING_FIT_WIDTH, "EV_SIZING_FIT_WIDTH", "fit-width" },
4025       { EV_SIZING_BEST_FIT, "EV_SIZING_BEST_FIT", "best-fit" },
4026       { EV_SIZING_FREE, "EV_SIZING_FREE", "free" },
4027       { 0, NULL, NULL }
4028     };
4029     etype = g_enum_register_static ("EvSizingMode", values);
4030   }
4031   return etype;
4032 }
4033
4034 GType
4035 ev_scroll_type_get_type (void)
4036 {
4037   static GType etype = 0;
4038   if (etype == 0) {
4039     static const GEnumValue values[] = {
4040       { EV_SCROLL_PAGE_FORWARD, "EV_SCROLL_PAGE_FORWARD", "scroll-page-forward" },
4041       { EV_SCROLL_PAGE_BACKWARD, "EV_SCROLL_PAGE_BACKWARD", "scroll-page-backward" },
4042       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4043       { EV_SCROLL_STEP_FORWARD, "EV_SCROLL_STEP_FORWARD", "scroll-step-forward" },
4044       { EV_SCROLL_STEP_UP, "EV_SCROLL_STEP_UP", "scroll-step-up" },
4045       { EV_SCROLL_STEP_DOWN, "EV_SCROLL_STEP_DOWN", "scroll-step-down" },
4046       { 0, NULL, NULL }
4047     };
4048     etype = g_enum_register_static ("EvScrollType", values);
4049   }
4050   return etype;
4051 }