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 <gtk/gtkalignment.h>
  22 #include <glib/gi18n.h>
  23 #include <gtk/gtkbindings.h>
  24 #include <gtk/gtkselection.h>
  25 #include <gtk/gtkclipboard.h>
  26 #include <gdk/gdkkeysyms.h>
  27 #include <libgnomevfs/gnome-vfs-utils.h>
  28
  29 #include "ev-marshal.h"
  30 #include "ev-view.h"
  31 #include "ev-document-find.h"
  32 #include "ev-document-misc.h"
  33 #include "ev-debug.h"
  34 #include "ev-job-queue.h"
  35 #include "ev-page-cache.h"
  36 #include "ev-pixbuf-cache.h"
  37
  38 #define EV_VIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
  39 #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
  40 #define EV_VIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass))
  41
  42 enum {
  43         PROP_0,
  44         PROP_STATUS,
  45         PROP_FIND_STATUS
  46 };
  47
  48 enum {
  49   TARGET_STRING,
  50   TARGET_TEXT,
  51   TARGET_COMPOUND_TEXT,
  52   TARGET_UTF8_STRING,
  53   TARGET_TEXT_BUFFER_CONTENTS
  54 };
  55
  56 static const GtkTargetEntry targets[] = {
  57         { "STRING", 0, TARGET_STRING },
  58         { "TEXT",   0, TARGET_TEXT },
  59         { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
  60         { "UTF8_STRING", 0, TARGET_UTF8_STRING },
  61 };
  62
  63 typedef enum {
  64         EV_VIEW_CURSOR_NORMAL,
  65         EV_VIEW_CURSOR_LINK,
  66         EV_VIEW_CURSOR_WAIT,
  67         EV_VIEW_CURSOR_HIDDEN
  68 } EvViewCursor;
  69
  70 #define ZOOM_IN_FACTOR  1.2
  71 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
  72
  73 #define MIN_SCALE 0.05409
  74 #define MAX_SCALE 18.4884
  75
  76 struct _EvView {
  77         GtkWidget parent_instance;
  78
  79         EvDocument *document;
  80
  81         GdkWindow *bin_window;
  82
  83         char *status;
  84         char *find_status;
  85
  86         int scroll_x;
  87         int scroll_y;
  88
  89         gboolean pressed_button;
  90         gboolean has_selection;
  91         GdkPoint selection_start;
  92         GdkRectangle selection;
  93         EvViewCursor cursor;
  94
  95         GtkAdjustment *hadjustment;
  96         GtkAdjustment *vadjustment;
  97
  98         EvPageCache *page_cache;
  99         EvPixbufCache *pixbuf_cache;
 100
 101         gint current_page;
 102         EvJobRender *current_job;
 103
 104         int find_page;
 105         int find_result;
 106         int spacing;
 107
 108         double scale;
 109         int width;
 110         int height;
 111 };
 112
 113 struct _EvViewClass {
 114         GtkWidgetClass parent_class;
 115
 116         void    (*set_scroll_adjustments) (EvView         *view,
 117                                            GtkAdjustment  *hadjustment,
 118                                            GtkAdjustment  *vadjustment);
 119         void    (*scroll_view)            (EvView         *view,
 120                                            GtkScrollType   scroll,
 121                                            gboolean        horizontal);
 122
 123 };
 124
 125
 126 static void ev_view_set_scroll_adjustments (EvView         *view,
 127                                             GtkAdjustment  *hadjustment,
 128                                             GtkAdjustment  *vadjustment);
 129
 130 G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET)
 131
 132 /*** Helper functions ***/
 133
 134 static void
 135 view_update_adjustments (EvView *view)
 136 {
 137         int old_x = view->scroll_x;
 138         int old_y = view->scroll_y;
 139
 140         if (view->hadjustment)
 141                 view->scroll_x = view->hadjustment->value;
 142         else
 143                 view->scroll_x = 0;
 144
 145         if (view->vadjustment)
 146                 view->scroll_y = view->vadjustment->value;
 147         else
 148                 view->scroll_y = 0;
 149
 150         if (GTK_WIDGET_REALIZED (view) &&
 151             (view->scroll_x != old_x || view->scroll_y != old_y)) {
 152                 gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y);
 153                 gdk_window_process_updates (view->bin_window, TRUE);
 154         }
 155 }
 156
 157 static void
 158 view_set_adjustment_values (EvView         *view,
 159                             GtkOrientation  orientation)
 160 {
 161         GtkWidget *widget = GTK_WIDGET (view);
 162         GtkAdjustment *adjustment;
 163         gboolean value_changed = FALSE;
 164         int requisition;
 165         int allocation;
 166
 167         if (orientation == GTK_ORIENTATION_HORIZONTAL)  {
 168                 requisition = widget->requisition.width;
 169                 allocation = widget->allocation.width;
 170                 adjustment = view->hadjustment;
 171         } else {
 172                 requisition = widget->requisition.height;
 173                 allocation = widget->allocation.height;
 174                 adjustment = view->vadjustment;
 175         }
 176
 177         if (!adjustment)
 178                 return;
 179
 180         adjustment->page_size = allocation;
 181         adjustment->step_increment = allocation * 0.1;
 182         adjustment->page_increment = allocation * 0.9;
 183         adjustment->lower = 0;
 184         adjustment->upper = MAX (allocation, requisition);
 185
 186         if (adjustment->value > adjustment->upper - adjustment->page_size) {
 187                 adjustment->value = adjustment->upper - adjustment->page_size;
 188                 value_changed = TRUE;
 189         }
 190
 191         gtk_adjustment_changed (adjustment);
 192         if (value_changed)
 193                 gtk_adjustment_value_changed (adjustment);
 194 }
 195
 196 /*** Virtual function implementations ***/
 197
 198 static void
 199 ev_view_finalize (GObject *object)
 200 {
 201         EvView *view = EV_VIEW (object);
 202
 203         LOG ("Finalize");
 204
 205
 206         ev_view_set_scroll_adjustments (view, NULL, NULL);
 207
 208         G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
 209 }
 210
 211 static void
 212 ev_view_destroy (GtkObject *object)
 213 {
 214         EvView *view = EV_VIEW (object);
 215
 216         if (view->document) {
 217                 g_object_unref (view->document);
 218                 view->document = NULL;
 219         }
 220         if (view->pixbuf_cache) {
 221                 g_object_unref (view->pixbuf_cache);
 222                 view->pixbuf_cache = NULL;
 223         }
 224         ev_view_set_scroll_adjustments (view, NULL, NULL);
 225
 226         GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
 227 }
 228
 229 static void
 230 ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
 231 {
 232         EvDocument *document = view->document;
 233         GtkWidget *widget = GTK_WIDGET (view);
 234         int width, height, target_width, target_height;
 235         GtkBorder border;
 236
 237         g_return_if_fail (EV_IS_DOCUMENT (document));
 238
 239         ev_page_cache_get_size (view->page_cache,
 240                                 view->current_page,
 241                                 view->scale,
 242                                 &width, &height);
 243
 244         ev_document_misc_get_page_border_size (width, height, &border);
 245
 246         *x_offset = view->spacing;
 247         *y_offset = view->spacing;
 248         target_width = width + border.left + border.right + view->spacing * 2;
 249         target_height = height + border.top + border.bottom + view->spacing * 2;
 250         *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
 251         *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
 252 }
 253
 254 static void
 255 view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, GdkRectangle *doc_rect)
 256 {
 257         int x_offset, y_offset;
 258
 259         ev_view_get_offsets (view, &x_offset, &y_offset);
 260         doc_rect->x = (view_rect->x - x_offset) / view->scale;
 261         doc_rect->y = (view_rect->y - y_offset) / view->scale;
 262         doc_rect->width = view_rect->width / view->scale;
 263         doc_rect->height = view_rect->height / view->scale;
 264 }
 265
 266 static void
 267 doc_rect_to_view_rect (EvView *view, GdkRectangle *doc_rect, GdkRectangle *view_rect)
 268 {
 269         int x_offset, y_offset;
 270
 271         ev_view_get_offsets (view, &x_offset, &y_offset);
 272         view_rect->x = doc_rect->x * view->scale + x_offset;
 273         view_rect->y = doc_rect->y * view->scale + y_offset;
 274         view_rect->width = doc_rect->width * view->scale;
 275         view_rect->height = doc_rect->height * view->scale;
 276 }
 277
 278
 279 /* Called by size_request to make sure we have appropriate jobs running.
 280  */
 281 static void
 282 ev_view_size_request (GtkWidget      *widget,
 283                       GtkRequisition *requisition)
 284 {
 285         EvView *view = EV_VIEW (widget);
 286         GtkBorder border;
 287         gint width, height;
 288
 289         if (!GTK_WIDGET_REALIZED (widget))
 290                 return;
 291
 292         if (!view->document) {
 293                 requisition->width = 1;
 294                 requisition->height = 1;
 295                 return;
 296         }
 297
 298         ev_page_cache_get_size (view->page_cache,
 299                                 view->current_page,
 300                                 view->scale,
 301                                 &width, &height);
 302
 303         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
 304                                         view->current_page,
 305                                         view->current_page,
 306                                         view->scale);
 307         ev_document_misc_get_page_border_size (width, height, &border);
 308
 309         if (view->width >= 0) {
 310                 requisition->width = 0;
 311         } else {
 312                 requisition->width = width + border.left + border.right +
 313                                      view->spacing * 2;
 314         }
 315
 316         if (view->height >= 0) {
 317                 requisition->height = 0;
 318         } else {
 319                 requisition->height = height + border.top + border.bottom +
 320                                       view->spacing * 2;
 321         }
 322 }
 323
 324 static void
 325 ev_view_size_allocate (GtkWidget      *widget,
 326                        GtkAllocation  *allocation)
 327 {
 328         EvView *view = EV_VIEW (widget);
 329
 330         GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
 331
 332         view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
 333         view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
 334
 335         if (GTK_WIDGET_REALIZED (widget)) {
 336                 gdk_window_resize (view->bin_window,
 337                                    MAX (widget->allocation.width, widget->requisition.width),
 338                                    MAX (widget->allocation.height, widget->requisition.height));
 339         }
 340 }
 341
 342 static void
 343 ev_view_realize (GtkWidget *widget)
 344 {
 345         EvView *view = EV_VIEW (widget);
 346         GdkWindowAttr attributes;
 347
 348         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 349
 350
 351         attributes.window_type = GDK_WINDOW_CHILD;
 352         attributes.wclass = GDK_INPUT_OUTPUT;
 353         attributes.visual = gtk_widget_get_visual (widget);
 354         attributes.colormap = gtk_widget_get_colormap (widget);
 355
 356         attributes.x = widget->allocation.x;
 357         attributes.y = widget->allocation.y;
 358         attributes.width = widget->allocation.width;
 359         attributes.height = widget->allocation.height;
 360         attributes.event_mask = 0;
 361
 362         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 363                                          &attributes,
 364                                          GDK_WA_X | GDK_WA_Y |
 365                                          GDK_WA_COLORMAP |
 366                                          GDK_WA_VISUAL);
 367         gdk_window_set_user_data (widget->window, widget);
 368         widget->style = gtk_style_attach (widget->style, widget->window);
 369         gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
 370
 371         attributes.x = 0;
 372         attributes.y = 0;
 373         attributes.width = MAX (widget->allocation.width, widget->requisition.width);
 374         attributes.height = MAX (widget->allocation.height, widget->requisition.height);
 375         attributes.event_mask = GDK_EXPOSURE_MASK |
 376                                 GDK_BUTTON_PRESS_MASK |
 377                                 GDK_BUTTON_RELEASE_MASK |
 378                                 GDK_SCROLL_MASK |
 379                                 GDK_KEY_PRESS_MASK |
 380                                 GDK_POINTER_MOTION_MASK |
 381                                 GDK_LEAVE_NOTIFY_MASK;
 382
 383         view->bin_window = gdk_window_new (widget->window,
 384                                            &attributes,
 385                                            GDK_WA_X | GDK_WA_Y |
 386                                            GDK_WA_COLORMAP |
 387                                            GDK_WA_VISUAL);
 388         gdk_window_set_user_data (view->bin_window, widget);
 389         gdk_window_show (view->bin_window);
 390
 391         widget->style = gtk_style_attach (widget->style, view->bin_window);
 392         gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
 393
 394         if (view->document) {
 395                 /* We can't get page size without a target, so we have to
 396                  * queue a size request at realization. Could be fixed
 397                  * with EvDocument changes to allow setting a GdkScreen
 398                  * without setting a target.
 399                  */
 400                 gtk_widget_queue_resize (widget);
 401         }
 402 }
 403
 404 static void
 405 ev_view_unrealize (GtkWidget *widget)
 406 {
 407         EvView *view = EV_VIEW (widget);
 408
 409         gdk_window_set_user_data (view->bin_window, NULL);
 410         gdk_window_destroy (view->bin_window);
 411         view->bin_window = NULL;
 412
 413         GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
 414 }
 415
 416 static guint32
 417 ev_gdk_color_to_rgb (const GdkColor *color)
 418 {
 419   guint32 result;
 420   result = (0xff0000 | (color->red & 0xff00));
 421   result <<= 8;
 422   result |= ((color->green & 0xff00) | (color->blue >> 8));
 423   return result;
 424 }
 425
 426 static void
 427 draw_rubberband (GtkWidget *widget, GdkWindow *window,
 428                  const GdkRectangle *rect, guchar alpha)
 429 {
 430         GdkGC *gc;
 431         GdkPixbuf *pixbuf;
 432         GdkColor *fill_color_gdk;
 433         guint fill_color;
 434
 435         fill_color_gdk = gdk_color_copy (&GTK_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
 436         fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
 437
 438         pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 439                                  rect->width, rect->height);
 440         gdk_pixbuf_fill (pixbuf, fill_color);
 441
 442         gdk_draw_pixbuf (window, NULL, pixbuf,
 443                          0, 0,
 444                          rect->x,rect->y,
 445                          rect->width, rect->height,
 446                          GDK_RGB_DITHER_NONE,
 447                          0, 0);
 448
 449         g_object_unref (pixbuf);
 450
 451         gc = gdk_gc_new (window);
 452         gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
 453         gdk_draw_rectangle (window, gc, FALSE,
 454                             rect->x, rect->y,
 455                             rect->width - 1,
 456                             rect->height - 1);
 457         g_object_unref (gc);
 458
 459         gdk_color_free (fill_color_gdk);
 460 }
 461
 462 static void
 463 highlight_find_results (EvView *view)
 464 {
 465         EvDocumentFind *find;
 466         int i, results = 0;
 467
 468         g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
 469
 470         find = EV_DOCUMENT_FIND (view->document);
 471
 472 #if 0
 473         g_mutex_lock (EV_DOC_MUTEX);
 474         results = ev_document_find_get_n_results (find);
 475         g_mutex_unlock (EV_DOC_MUTEX);
 476 #endif
 477
 478         for (i = 0; i < results; i++) {
 479                 GdkRectangle rectangle;
 480                 guchar alpha;
 481
 482                 alpha = (i == view->find_result) ? 0x90 : 0x20;
 483                 g_mutex_lock (EV_DOC_MUTEX);
 484                 ev_document_find_get_result (find, i, &rectangle);
 485                 g_mutex_unlock (EV_DOC_MUTEX);
 486                 draw_rubberband (GTK_WIDGET (view), view->bin_window,
 487                                  &rectangle, alpha);
 488         }
 489 }
 490
 491
 492 static void
 493 expose_bin_window (GtkWidget      *widget,
 494                    GdkEventExpose *event)
 495 {
 496         EvView *view = EV_VIEW (widget);
 497         GtkBorder border;
 498         gint width, height;
 499         GdkRectangle area;
 500         int x_offset, y_offset;
 501         GdkPixbuf *scaled_image;
 502         GdkPixbuf *current_pixbuf;
 503
 504         if (view->document == NULL)
 505                 return;
 506
 507         ev_view_get_offsets (view, &x_offset, &y_offset);
 508         ev_page_cache_get_size (view->page_cache,
 509                                 view->current_page,
 510                                 view->scale,
 511                                 &width, &height);
 512
 513         ev_document_misc_get_page_border_size (width, height, &border);
 514
 515         /* Paint the frame */
 516         area.x = x_offset;
 517         area.y = y_offset;
 518         area.width = width + border.left + border.right;
 519         area.height = height + border.top + border.bottom;
 520         ev_document_misc_paint_one_page (view->bin_window, widget, &area, &border);
 521
 522         /* Render the document itself */
 523         LOG ("Render area %d %d %d %d - Offset %d %d",
 524              event->area.x, event->area.y,
 525              event->area.width, event->area.height,
 526              x_offset, y_offset);
 527
 528         current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, view->current_page);
 529
 530         if (current_pixbuf == NULL)
 531                 scaled_image = NULL;
 532         else if (width == gdk_pixbuf_get_width (current_pixbuf) &&
 533                  height == gdk_pixbuf_get_height (current_pixbuf))
 534                 scaled_image = g_object_ref (current_pixbuf);
 535         else
 536                 scaled_image = gdk_pixbuf_scale_simple (current_pixbuf,
 537                                                         width, height,
 538                                                         GDK_INTERP_NEAREST);
 539         if (scaled_image) {
 540                 gdk_draw_pixbuf (view->bin_window,
 541                                  GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL],
 542                                  scaled_image,
 543                                  0, 0,
 544                                  area.x + border.left,
 545                                  area.y + border.top,
 546                                  width, height,
 547                                  GDK_RGB_DITHER_NORMAL,
 548                                  0, 0);
 549                 g_object_unref (scaled_image);
 550         }
 551
 552         if (EV_IS_DOCUMENT_FIND (view->document)) {
 553                 highlight_find_results (view);
 554         }
 555
 556         if (view->has_selection) {
 557                 GdkRectangle rubberband;
 558
 559                 doc_rect_to_view_rect (view, &view->selection, &rubberband);
 560                 if (rubberband.width > 0 && rubberband.height > 0) {
 561                         draw_rubberband (widget, view->bin_window,
 562                                          &rubberband, 0x40);
 563                 }
 564         }
 565 }
 566
 567 static gboolean
 568 ev_view_expose_event (GtkWidget      *widget,
 569                       GdkEventExpose *event)
 570 {
 571         EvView *view = EV_VIEW (widget);
 572
 573         if (event->window == view->bin_window)
 574                 expose_bin_window (widget, event);
 575         else
 576                 return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event);
 577
 578         return FALSE;
 579 }
 580
 581 void
 582 ev_view_select_all (EvView *ev_view)
 583 {
 584         GtkWidget *widget = GTK_WIDGET (ev_view);
 585         GdkRectangle selection;
 586         int width, height;
 587         int x_offset, y_offset;
 588         GtkBorder border;
 589
 590         g_return_if_fail (EV_IS_VIEW (ev_view));
 591
 592
 593         ev_view_get_offsets (ev_view, &x_offset, &y_offset);
 594         ev_page_cache_get_size (ev_view->page_cache,
 595                                 ev_view->current_page,
 596                                 ev_view->scale,
 597                                 &width, &height);
 598         ev_document_misc_get_page_border_size (width, height, &border);
 599
 600         ev_view->has_selection = TRUE;
 601         selection.x = x_offset + border.left;
 602         selection.y = y_offset + border.top;
 603         selection.width = width;
 604         selection.height = height;
 605         view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection);
 606
 607         gtk_widget_queue_draw (widget);
 608 }
 609
 610 void
 611 ev_view_copy (EvView *ev_view)
 612 {
 613         GtkClipboard *clipboard;
 614         GdkRectangle selection;
 615         char *text;
 616
 617         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 618         g_mutex_lock (EV_DOC_MUTEX);
 619         text = ev_document_get_text (ev_view->document, &selection);
 620         g_mutex_unlock (EV_DOC_MUTEX);
 621
 622         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 623                                               GDK_SELECTION_CLIPBOARD);
 624         gtk_clipboard_set_text (clipboard, text, -1);
 625         g_free (text);
 626 }
 627
 628 static void
 629 ev_view_primary_get_cb (GtkClipboard     *clipboard,
 630                         GtkSelectionData *selection_data,
 631                         guint             info,
 632                         gpointer          data)
 633 {
 634         EvView *ev_view = EV_VIEW (data);
 635         GdkRectangle selection;
 636         char *text;
 637
 638         doc_rect_to_view_rect (ev_view, &ev_view->selection, &selection);
 639         g_mutex_lock (EV_DOC_MUTEX);
 640         text = ev_document_get_text (ev_view->document, &selection);
 641         g_mutex_unlock (EV_DOC_MUTEX);
 642         gtk_selection_data_set_text (selection_data, text, -1);
 643 }
 644
 645 static void
 646 ev_view_primary_clear_cb (GtkClipboard *clipboard,
 647                           gpointer      data)
 648 {
 649         EvView *ev_view = EV_VIEW (data);
 650
 651         ev_view->has_selection = FALSE;
 652 }
 653
 654 static void
 655 ev_view_update_primary_selection (EvView *ev_view)
 656 {
 657         GtkClipboard *clipboard;
 658
 659         clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view),
 660                                               GDK_SELECTION_PRIMARY);
 661
 662         if (ev_view->has_selection) {
 663                 if (!gtk_clipboard_set_with_owner (clipboard,
 664                                                    targets,
 665                                                    G_N_ELEMENTS (targets),
 666                                                    ev_view_primary_get_cb,
 667                                                    ev_view_primary_clear_cb,
 668                                                    G_OBJECT (ev_view)))
 669                         ev_view_primary_clear_cb (clipboard, ev_view);
 670         } else {
 671                 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view))
 672                         gtk_clipboard_clear (clipboard);
 673         }
 674 }
 675
 676 static gboolean
 677 ev_view_button_press_event (GtkWidget      *widget,
 678                             GdkEventButton *event)
 679 {
 680         EvView *view = EV_VIEW (widget);
 681
 682         if (!GTK_WIDGET_HAS_FOCUS (widget)) {
 683                 gtk_widget_grab_focus (widget);
 684         }
 685
 686         view->pressed_button = event->button;
 687
 688         switch (event->button) {
 689                 case 1:
 690                         if (view->has_selection) {
 691                                 view->has_selection = FALSE;
 692                                 gtk_widget_queue_draw (widget);
 693                         }
 694
 695                         view->selection_start.x = event->x;
 696                         view->selection_start.y = event->y;
 697                         break;
 698         }
 699
 700         return TRUE;
 701 }
 702
 703 static char *
 704 status_message_from_link (EvLink *link)
 705 {
 706         EvLinkType type;
 707         char *msg;
 708         int page;
 709
 710         type = ev_link_get_link_type (link);
 711
 712         switch (type) {
 713                 case EV_LINK_TYPE_TITLE:
 714                         msg = g_strdup (ev_link_get_title (link));
 715                         break;
 716                 case EV_LINK_TYPE_PAGE:
 717                         page = ev_link_get_page (link);
 718                         msg = g_strdup_printf (_("Go to page %d"), page);
 719                         break;
 720                 case EV_LINK_TYPE_EXTERNAL_URI:
 721                         msg = g_strdup (ev_link_get_uri (link));
 722                         break;
 723                 default:
 724                         msg = NULL;
 725         }
 726
 727         return msg;
 728 }
 729
 730 static void
 731 ev_view_set_status (EvView *view, const char *message)
 732 {
 733         g_return_if_fail (EV_IS_VIEW (view));
 734
 735         if (message != view->status) {
 736                 g_free (view->status);
 737                 view->status = g_strdup (message);
 738                 g_object_notify (G_OBJECT (view), "status");
 739         }
 740 }
 741
 742 static void
 743 ev_view_set_find_status (EvView *view, const char *message)
 744 {
 745         g_return_if_fail (EV_IS_VIEW (view));
 746
 747         g_free (view->find_status);
 748         view->find_status = g_strdup (message);
 749         g_object_notify (G_OBJECT (view), "find-status");
 750 }
 751
 752 static GdkCursor *
 753 ev_view_create_invisible_cursor(void)
 754 {
 755        GdkBitmap *empty;
 756        GdkColor black = { 0, 0, 0, 0 };
 757        static char bits[] = { 0x00 };
 758
 759        empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1);
 760
 761        return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0);
 762 }
 763
 764 static void
 765 ev_view_set_cursor (EvView *view, EvViewCursor new_cursor)
 766 {
 767         GdkCursor *cursor = NULL;
 768         GdkDisplay *display;
 769         GtkWidget *widget;
 770
 771         if (view->cursor == new_cursor) {
 772                 return;
 773         }
 774
 775         widget = gtk_widget_get_toplevel (GTK_WIDGET (view));
 776         display = gtk_widget_get_display (widget);
 777         view->cursor = new_cursor;
 778
 779         switch (new_cursor) {
 780                 case EV_VIEW_CURSOR_NORMAL:
 781                         gdk_window_set_cursor (widget->window, NULL);
 782                         break;
 783                 case EV_VIEW_CURSOR_LINK:
 784                         cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
 785                         break;
 786                 case EV_VIEW_CURSOR_WAIT:
 787                         cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
 788                         break;
 789                 case EV_VIEW_CURSOR_HIDDEN:
 790                         cursor = ev_view_create_invisible_cursor ();
 791                         break;
 792
 793         }
 794
 795         if (cursor) {
 796                 gdk_window_set_cursor (widget->window, cursor);
 797                 gdk_cursor_unref (cursor);
 798                 gdk_flush();
 799         }
 800 }
 801
 802 static gboolean
 803 ev_view_motion_notify_event (GtkWidget      *widget,
 804                              GdkEventMotion *event)
 805 {
 806         EvView *view = EV_VIEW (widget);
 807
 808         if (view->pressed_button > 0) {
 809                 GdkRectangle selection;
 810
 811                 view->has_selection = TRUE;
 812                 selection.x = MIN (view->selection_start.x, event->x);
 813                 selection.y = MIN (view->selection_start.y, event->y);
 814                 selection.width = ABS (view->selection_start.x - event->x) + 1;
 815                 selection.height = ABS (view->selection_start.y - event->y) + 1;
 816                 view_rect_to_doc_rect (view, &selection, &view->selection);
 817
 818                 gtk_widget_queue_draw (widget);
 819         } else if (FALSE && view->document) {
 820                 EvLink *link;
 821
 822                 g_mutex_lock (EV_DOC_MUTEX);
 823                 link = ev_document_get_link (view->document, event->x, event->y);
 824                 g_mutex_unlock (EV_DOC_MUTEX);
 825
 826                 if (link) {
 827                         char *msg;
 828
 829                         msg = status_message_from_link (link);
 830                         ev_view_set_status (view, msg);
 831                         ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
 832                         g_free (msg);
 833
 834                         g_object_unref (link);
 835                 } else {
 836                         ev_view_set_status (view, NULL);
 837                         if (view->cursor == EV_VIEW_CURSOR_LINK) {
 838                                 ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
 839                         }
 840                 }
 841         }
 842
 843         return TRUE;
 844 }
 845
 846 static gboolean
 847 ev_view_button_release_event (GtkWidget      *widget,
 848                               GdkEventButton *event)
 849 {
 850         EvView *view = EV_VIEW (widget);
 851
 852         view->pressed_button = -1;
 853
 854         if (view->has_selection) {
 855                 ev_view_update_primary_selection (view);
 856         } else if (view->document) {
 857                 EvLink *link;
 858
 859                 g_mutex_lock (EV_DOC_MUTEX);
 860                 link = ev_document_get_link (view->document,
 861                                              event->x,
 862                                              event->y);
 863                 g_mutex_unlock (EV_DOC_MUTEX);
 864                 if (link) {
 865                         ev_view_go_to_link (view, link);
 866                         g_object_unref (link);
 867                 }
 868         }
 869
 870         return FALSE;
 871 }
 872
 873 static void
 874 on_adjustment_value_changed (GtkAdjustment  *adjustment,
 875                              EvView *view)
 876 {
 877         view_update_adjustments (view);
 878 }
 879
 880 static void
 881 set_scroll_adjustment (EvView *view,
 882                        GtkOrientation  orientation,
 883                        GtkAdjustment  *adjustment)
 884 {
 885         GtkAdjustment **to_set;
 886
 887         if (orientation == GTK_ORIENTATION_HORIZONTAL)
 888                 to_set = &view->hadjustment;
 889         else
 890                 to_set = &view->vadjustment;
 891
 892         if (*to_set != adjustment) {
 893                 if (*to_set) {
 894                         g_signal_handlers_disconnect_by_func (*to_set,
 895                                                               (gpointer) on_adjustment_value_changed,
 896                                                               view);
 897                         g_object_unref (*to_set);
 898                 }
 899
 900                 *to_set = adjustment;
 901                 view_set_adjustment_values (view, orientation);
 902
 903                 if (*to_set) {
 904                         g_object_ref (*to_set);
 905                         g_signal_connect (*to_set, "value_changed",
 906                                           G_CALLBACK (on_adjustment_value_changed), view);
 907                 }
 908         }
 909 }
 910
 911 static void
 912 ev_view_set_scroll_adjustments (EvView *view,
 913                                 GtkAdjustment  *hadjustment,
 914                                 GtkAdjustment  *vadjustment)
 915 {
 916         set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
 917         set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
 918
 919         view_update_adjustments (view);
 920 }
 921
 922 static void
 923 add_scroll_binding (GtkBindingSet  *binding_set,
 924                     guint           keyval,
 925                     GtkScrollType   scroll,
 926                     gboolean        horizontal)
 927 {
 928   guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
 929
 930   gtk_binding_entry_add_signal (binding_set, keyval, 0,
 931                                 "scroll_view", 2,
 932                                 GTK_TYPE_SCROLL_TYPE, scroll,
 933                                 G_TYPE_BOOLEAN, horizontal);
 934   gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
 935                                 "scroll_view", 2,
 936                                 GTK_TYPE_SCROLL_TYPE, scroll,
 937                                 G_TYPE_BOOLEAN, horizontal);
 938 }
 939
 940 static void
 941 ev_view_scroll_view (EvView *view,
 942                      GtkScrollType scroll,
 943                      gboolean horizontal)
 944 {
 945         if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
 946                 ev_page_cache_prev_page (view->page_cache);
 947         } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
 948                 ev_page_cache_next_page (view->page_cache);
 949         } else {
 950                 GtkAdjustment *adjustment;
 951                 double value;
 952
 953                 if (horizontal) {
 954                         adjustment = view->hadjustment;
 955                 } else {
 956                         adjustment = view->vadjustment;
 957                 }
 958
 959                 value = adjustment->value;
 960
 961                 switch (scroll) {
 962                         case GTK_SCROLL_STEP_BACKWARD:
 963                                 value -= adjustment->step_increment;
 964                                 break;
 965                         case GTK_SCROLL_STEP_FORWARD:
 966                                 value += adjustment->step_increment;
 967                                 break;
 968                         default:
 969                                 break;
 970                 }
 971
 972                 value = CLAMP (value, adjustment->lower,
 973                                adjustment->upper - adjustment->page_size);
 974
 975                 gtk_adjustment_set_value (adjustment, value);
 976         }
 977 }
 978
 979 static void
 980 ev_view_set_property (GObject *object,
 981                       guint prop_id,
 982                       const GValue *value,
 983                       GParamSpec *pspec)
 984 {
 985         switch (prop_id)
 986         {
 987                 /* Read only */
 988                 case PROP_STATUS:
 989                 case PROP_FIND_STATUS:
 990                         break;
 991         }
 992 }
 993
 994 static void
 995 ev_view_get_property (GObject *object,
 996                       guint prop_id,
 997                       GValue *value,
 998                       GParamSpec *pspec)
 999 {
1000         EvView *view = EV_VIEW (object);
1001
1002         switch (prop_id)
1003         {
1004                 case PROP_STATUS:
1005                         g_value_set_string (value, view->status);
1006                         break;
1007                 case PROP_FIND_STATUS:
1008                         g_value_set_string (value, view->status);
1009                         break;
1010         }
1011 }
1012
1013 static void
1014 ev_view_class_init (EvViewClass *class)
1015 {
1016         GObjectClass *object_class = G_OBJECT_CLASS (class);
1017         GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (class);
1018         GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
1019         GtkBindingSet *binding_set;
1020
1021         object_class->finalize = ev_view_finalize;
1022         object_class->set_property = ev_view_set_property;
1023         object_class->get_property = ev_view_get_property;
1024
1025         widget_class->expose_event = ev_view_expose_event;
1026         widget_class->button_press_event = ev_view_button_press_event;
1027         widget_class->motion_notify_event = ev_view_motion_notify_event;
1028         widget_class->button_release_event = ev_view_button_release_event;
1029         widget_class->size_request = ev_view_size_request;
1030         widget_class->size_allocate = ev_view_size_allocate;
1031         widget_class->realize = ev_view_realize;
1032         widget_class->unrealize = ev_view_unrealize;
1033         gtk_object_class->destroy = ev_view_destroy;
1034
1035         class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
1036         class->scroll_view = ev_view_scroll_view;
1037
1038         widget_class->set_scroll_adjustments_signal =  g_signal_new ("set-scroll-adjustments",
1039                                                                      G_OBJECT_CLASS_TYPE (object_class),
1040                                                                      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1041                                                                      G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments),
1042                                                                      NULL, NULL,
1043                                                                      ev_marshal_VOID__OBJECT_OBJECT,
1044                                                                      G_TYPE_NONE, 2,
1045                                                                      GTK_TYPE_ADJUSTMENT,
1046                                                                      GTK_TYPE_ADJUSTMENT);
1047
1048         g_signal_new ("scroll_view",
1049                       G_TYPE_FROM_CLASS (object_class),
1050                       G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1051                       G_STRUCT_OFFSET (EvViewClass, scroll_view),
1052                       NULL, NULL,
1053                       ev_marshal_VOID__ENUM_BOOLEAN,
1054                       G_TYPE_NONE, 2,
1055                       GTK_TYPE_SCROLL_TYPE,
1056                       G_TYPE_BOOLEAN);
1057
1058         g_object_class_install_property (object_class,
1059                                          PROP_STATUS,
1060                                          g_param_spec_string ("status",
1061                                                               "Status Message",
1062                                                               "The status message",
1063                                                               NULL,
1064                                                               G_PARAM_READABLE));
1065
1066         g_object_class_install_property (object_class,
1067                                          PROP_STATUS,
1068                                          g_param_spec_string ("find-status",
1069                                                               "Find Status Message",
1070                                                               "The find status message",
1071                                                               NULL,
1072                                                               G_PARAM_READABLE));
1073
1074         binding_set = gtk_binding_set_by_class (class);
1075
1076         add_scroll_binding (binding_set, GDK_Left,  GTK_SCROLL_STEP_BACKWARD, TRUE);
1077         add_scroll_binding (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD,  TRUE);
1078         add_scroll_binding (binding_set, GDK_Up,    GTK_SCROLL_STEP_BACKWARD, FALSE);
1079         add_scroll_binding (binding_set, GDK_Down,  GTK_SCROLL_STEP_FORWARD,  FALSE);
1080
1081         add_scroll_binding (binding_set, GDK_Page_Up,   GTK_SCROLL_PAGE_BACKWARD, FALSE);
1082         add_scroll_binding (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD,  FALSE);
1083 }
1084
1085 static void
1086 ev_view_init (EvView *view)
1087 {
1088         GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
1089
1090         view->spacing = 10;
1091         view->scale = 1.0;
1092         view->current_page = 1;
1093         view->pressed_button = -1;
1094         view->cursor = EV_VIEW_CURSOR_NORMAL;
1095 }
1096
1097 static void
1098 update_find_status_message (EvView *view)
1099 {
1100         char *message;
1101
1102 //      g_mutex_lock (EV_DOC_MUTEX);
1103         if (ev_document_get_page (view->document) == view->find_page) {
1104                 int results;
1105
1106 //              g_mutex_lock (EV_DOC_MUTEX);
1107                 results = ev_document_find_get_n_results
1108                                 (EV_DOCUMENT_FIND (view->document));
1109 //              g_mutex_unlock (EV_DOC_MUTEX);
1110                 /* TRANS: Sometimes this could be better translated as
1111                    "%d hit(s) on this page".  Therefore this string
1112                    contains plural cases. */
1113                 message = g_strdup_printf (ngettext ("%d found on this page",
1114                                                      "%d found on this page",
1115                                                      results),
1116                                            results);
1117         } else {
1118                 double percent;
1119
1120                 g_mutex_lock (EV_DOC_MUTEX);
1121                 percent = ev_document_find_get_progress
1122                                 (EV_DOCUMENT_FIND (view->document));
1123                 g_mutex_unlock (EV_DOC_MUTEX);
1124                 if (percent >= (1.0 - 1e-10)) {
1125                         message = g_strdup (_("Not found"));
1126                 } else {
1127                         message = g_strdup_printf (_("%3d%% remaining to search"),
1128                                                    (int) ((1.0 - percent) * 100));
1129                 }
1130
1131         }
1132 //      g_mutex_unlock (EV_DOC_MUTEX);
1133
1134         ev_view_set_find_status (view, message);
1135 //      g_free (message);
1136 }
1137
1138 #define MARGIN 5
1139
1140 static void
1141 ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
1142 {
1143         GtkWidget *widget = GTK_WIDGET (view);
1144         GtkAdjustment *adjustment;
1145         int value;
1146
1147         adjustment = view->vadjustment;
1148
1149         if (rect->y < adjustment->value) {
1150                 value = MAX (adjustment->lower, rect->y - MARGIN);
1151                 gtk_adjustment_set_value (view->vadjustment, value);
1152         } else if (rect->y + rect->height >
1153                    adjustment->value + widget->allocation.height) {
1154                 value = MIN (adjustment->upper, rect->y + rect->height -
1155                              widget->allocation.height + MARGIN);
1156                 gtk_adjustment_set_value (view->vadjustment, value);
1157         }
1158
1159         adjustment = view->hadjustment;
1160
1161         if (rect->x < adjustment->value) {
1162                 value = MAX (adjustment->lower, rect->x - MARGIN);
1163                 gtk_adjustment_set_value (view->hadjustment, value);
1164         } else if (rect->x + rect->height >
1165                    adjustment->value + widget->allocation.width) {
1166                 value = MIN (adjustment->upper, rect->x + rect->width -
1167                              widget->allocation.width + MARGIN);
1168                 gtk_adjustment_set_value (view->hadjustment, value);
1169         }
1170 }
1171
1172 static void
1173 jump_to_find_result (EvView *view)
1174 {
1175         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1176         GdkRectangle rect;
1177         int n_results;
1178
1179         g_mutex_lock (EV_DOC_MUTEX);
1180         n_results = ev_document_find_get_n_results (find);
1181         g_mutex_unlock (EV_DOC_MUTEX);
1182
1183         if (n_results > view->find_result) {
1184                 g_mutex_lock (EV_DOC_MUTEX);
1185                 ev_document_find_get_result
1186                         (find, view->find_result, &rect);
1187                 g_mutex_unlock (EV_DOC_MUTEX);
1188
1189                 ensure_rectangle_is_visible (view, &rect);
1190         }
1191 }
1192
1193 static void
1194 jump_to_find_page (EvView *view)
1195 {
1196         int n_pages, i;
1197
1198         n_pages = ev_page_cache_get_n_pages (view->page_cache);
1199
1200         for (i = 0; i <= n_pages; i++) {
1201                 int has_results;
1202                 int page;
1203
1204                 page = i + view->find_page;
1205                 if (page > n_pages) {
1206                         page = page - n_pages;
1207                 }
1208
1209                 g_mutex_lock (EV_DOC_MUTEX);
1210                 has_results = ev_document_find_page_has_results
1211                                 (EV_DOCUMENT_FIND (view->document), page);
1212                 if (has_results == -1) {
1213                         view->find_page = page;
1214                         break;
1215                 } else if (has_results == 1) {
1216                         ev_page_cache_set_current_page (view->page_cache, page);
1217                         jump_to_find_result (view);
1218                         break;
1219                 }
1220         }
1221 }
1222
1223 static void
1224 find_changed_cb (EvDocument *document, int page, EvView *view)
1225 {
1226         jump_to_find_page (view);
1227         jump_to_find_result (view);
1228         update_find_status_message (view);
1229
1230 #if 0
1231         /* FIXME: */
1232         if (ev_document_get_page (document) == page) {
1233                 gtk_widget_queue_draw (GTK_WIDGET (view));
1234         }
1235 #endif
1236 }
1237 /*** Public API ***/
1238
1239 GtkWidget*
1240 ev_view_new (void)
1241 {
1242         return g_object_new (EV_TYPE_VIEW, NULL);
1243 }
1244
1245 static void
1246 job_finished_cb (EvPixbufCache *pixbuf_cache,
1247                  EvView        *view)
1248 {
1249         gtk_widget_queue_draw (GTK_WIDGET (view));
1250 }
1251
1252
1253 static void
1254 page_changed_cb (EvPageCache *page_cache,
1255                  int          new_page,
1256                  EvView      *view)
1257 {
1258         int old_page = view->current_page;
1259         int old_width, old_height;
1260         int new_width, new_height;
1261
1262         if (old_page == new_page)
1263                 return;
1264
1265         ev_page_cache_get_size (page_cache,
1266                                 old_page,
1267                                 view->scale,
1268                                 &old_width, &old_height);
1269         ev_page_cache_get_size (page_cache,
1270                                 new_page,
1271                                 view->scale,
1272                                 &new_width, &new_height);
1273
1274         if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
1275                 //ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
1276         }
1277
1278         view->current_page = new_page;
1279         view->has_selection = FALSE;
1280
1281         ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
1282                                         view->current_page,
1283                                         view->current_page,
1284                                         view->scale);
1285
1286         if (new_width != old_width || new_height != old_height)
1287                 gtk_widget_queue_resize (GTK_WIDGET (view));
1288         else
1289                 gtk_widget_queue_draw (GTK_WIDGET (view));
1290
1291         gtk_adjustment_set_value (view->vadjustment,
1292                                   view->vadjustment->lower);
1293
1294         if (EV_IS_DOCUMENT_FIND (view->document)) {
1295                 view->find_page = new_page;
1296                 view->find_result = 0;
1297                 update_find_status_message (view);
1298         }
1299 }
1300
1301 void
1302 ev_view_set_document (EvView     *view,
1303                       EvDocument *document)
1304 {
1305         g_return_if_fail (EV_IS_VIEW (view));
1306
1307         if (document != view->document) {
1308                 if (view->document) {
1309                         g_signal_handlers_disconnect_by_func (view->document,
1310                                                               find_changed_cb,
1311                                                               view);
1312                         g_object_unref (view->document);
1313                         view->page_cache = NULL;
1314
1315                 }
1316
1317                 view->document = document;
1318                 view->find_page = 1;
1319                 view->find_result = 0;
1320
1321                 if (view->document) {
1322                         g_object_ref (view->document);
1323                         if (EV_IS_DOCUMENT_FIND (view->document)) {
1324                                 g_signal_connect (view->document,
1325                                                   "find_changed",
1326                                                   G_CALLBACK (find_changed_cb),
1327                                                   view);
1328                         }
1329                         view->page_cache = ev_document_get_page_cache (view->document);
1330                         g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view);
1331                         view->pixbuf_cache = ev_pixbuf_cache_new (view->document);
1332                         g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view);
1333                 }
1334
1335                 gtk_widget_queue_resize (GTK_WIDGET (view));
1336         }
1337 }
1338
1339 static void
1340 go_to_link (EvView *view, EvLink *link)
1341 {
1342         EvLinkType type;
1343         const char *uri;
1344         int page;
1345
1346         type = ev_link_get_link_type (link);
1347
1348         switch (type) {
1349                 case EV_LINK_TYPE_TITLE:
1350                         break;
1351                 case EV_LINK_TYPE_PAGE:
1352                         page = ev_link_get_page (link);
1353                         ev_page_cache_set_current_page (view->page_cache, page);
1354                         break;
1355                 case EV_LINK_TYPE_EXTERNAL_URI:
1356                         uri = ev_link_get_uri (link);
1357                         gnome_vfs_url_show (uri);
1358                         break;
1359         }
1360 }
1361
1362 void
1363 ev_view_go_to_link (EvView *view, EvLink *link)
1364 {
1365         go_to_link (view, link);
1366 }
1367
1368 static void
1369 ev_view_zoom (EvView   *view,
1370               double    factor,
1371               gboolean  relative)
1372 {
1373         double scale;
1374
1375         if (relative)
1376                 scale = view->scale * factor;
1377         else
1378                 scale = factor;
1379
1380         scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
1381
1382         view->scale = scale;
1383         gtk_widget_queue_resize (GTK_WIDGET (view));
1384 }
1385
1386 void
1387 ev_view_zoom_in (EvView *view)
1388 {
1389         view->width = view->height = -1;
1390         ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
1391 }
1392
1393 void
1394 ev_view_zoom_out (EvView *view)
1395 {
1396         view->width = view->height = -1;
1397         ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
1398 }
1399
1400 static double
1401 size_to_zoom_factor (EvView *view, int width, int height)
1402 {
1403         int doc_width, doc_height;
1404         double scale, scale_w, scale_h;
1405         GtkBorder border;
1406
1407         doc_width = doc_height = 0;
1408         scale = scale_w = scale_h = 1.0;
1409         ev_page_cache_get_size (view->page_cache,
1410                                 view->current_page,
1411                                 view->scale,
1412                                 &doc_width,
1413                                 &doc_height);
1414
1415         /* FIXME: The border size isn't constant.  Ugh.  Still, if we have extra
1416          * space, we just cut it from the border */
1417         ev_document_misc_get_page_border_size (doc_width, doc_height, &border);
1418
1419         if (doc_width == 0 && doc_height == 0) {
1420                 return 0;
1421         }
1422
1423         if (width >= 0) {
1424                 int target_width;
1425
1426                 target_width = width - (view->spacing * 2 + border.left + border.right);
1427                 scale = scale_w = (double)target_width * view->scale / doc_width;
1428         }
1429
1430         if (height >= 0) {
1431                 int target_height;
1432
1433                 target_height = height - (view->spacing * 2 + border.top + border.bottom);
1434                 scale = scale_h = (double)target_height * view->scale / doc_height;
1435         }
1436
1437         if (width >= 0 && height >= 0) {
1438                 scale = (scale_w < scale_h) ? scale_w : scale_h;
1439         }
1440
1441         return scale;
1442 }
1443
1444 void
1445 ev_view_set_size (EvView     *view,
1446                   int         width,
1447                   int         height)
1448 {
1449         double factor;
1450
1451         if (!view->document)
1452                 return;
1453
1454         if (view->width != width ||
1455             view->height != height) {
1456                 view->width = width;
1457                 view->height = height;
1458                 factor = size_to_zoom_factor (view, width, height);
1459                 ev_view_zoom (view, factor, FALSE);
1460                 gtk_widget_queue_resize (GTK_WIDGET (view));
1461         }
1462 }
1463
1464 const char *
1465 ev_view_get_status (EvView *view)
1466 {
1467         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1468
1469         return view->status;
1470 }
1471
1472 const char *
1473 ev_view_get_find_status (EvView *view)
1474 {
1475         g_return_val_if_fail (EV_IS_VIEW (view), NULL);
1476
1477         return view->find_status;
1478 }
1479
1480 void
1481 ev_view_find_next (EvView *view)
1482 {
1483         EvPageCache *page_cache;
1484         int n_results, n_pages;
1485         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1486
1487         page_cache = ev_document_get_page_cache (view->document);
1488         g_mutex_lock (EV_DOC_MUTEX);
1489         n_results = ev_document_find_get_n_results (find);
1490         g_mutex_unlock (EV_DOC_MUTEX);
1491
1492         n_pages = ev_page_cache_get_n_pages (page_cache);
1493
1494         view->find_result++;
1495
1496         if (view->find_result >= n_results) {
1497                 view->find_result = 0;
1498                 view->find_page++;
1499
1500                 if (view->find_page > n_pages) {
1501                         view->find_page = 1;
1502                 }
1503
1504                 jump_to_find_page (view);
1505         } else {
1506                 jump_to_find_result (view);
1507                 gtk_widget_queue_draw (GTK_WIDGET (view));
1508         }
1509 }
1510
1511 void
1512 ev_view_find_previous (EvView *view)
1513 {
1514         int n_results, n_pages;
1515         EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
1516         EvPageCache *page_cache;
1517
1518         page_cache = ev_document_get_page_cache (view->document);
1519
1520         g_mutex_lock (EV_DOC_MUTEX);
1521         n_results = ev_document_find_get_n_results (find);
1522         g_mutex_unlock (EV_DOC_MUTEX);
1523
1524         n_pages = ev_page_cache_get_n_pages (page_cache);
1525
1526         view->find_result--;
1527
1528         if (view->find_result < 0) {
1529                 view->find_result = 0;
1530                 view->find_page--;
1531
1532                 if (view->find_page < 1) {
1533                         view->find_page = n_pages;
1534                 }
1535
1536                 jump_to_find_page (view);
1537         } else {
1538                 jump_to_find_result (view);
1539                 gtk_widget_queue_draw (GTK_WIDGET (view));
1540         }
1541 }
1542 void
1543 ev_view_hide_cursor (EvView *view)
1544 {
1545        ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
1546 }
1547
1548 void
1549 ev_view_show_cursor (EvView *view)
1550 {
1551        ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
1552 }