shell/ev-dualscreen.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) 2007 Johannes Buchner
   5  *
   6  *  Author:
   7  *    Johannes Buchner <buchner.johannes@gmx.at>
   8  *    Lukas Bezdicka <255993@mail.muni.cz>
   9  *
  10  * Evince is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * Evince is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #include <glib/gi18n.h>
  30 #include <gtk/gtk.h>
  31
  32 #include "ev-dualscreen.h"
  33 #include "ev-window.h"
  34 #include "ev-view.h"
  35 #include "ev-view-presentation.h"
  36 #include "ev-utils.h"
  37 #include "ev-sidebar.h"
  38 #include "ev-sidebar-thumbnails.h"
  39
  40 struct _EvDSCWindowPrivate {
  41         GtkWidget       *main_box;
  42         GtkWidget       *menubar;
  43         GtkWidget       *sidebar;
  44         GtkWidget       *notesview;
  45         EvDocumentModel *model;
  46         EvDocumentModel *notes_model;
  47         EvDocument      *presentation_document;
  48         EvDocument      *notes_document;
  49
  50         GtkWidget       *presentation_window;
  51         GtkWidget       *overview_scrolled_window;
  52         GtkWidget       *notesview_scrolled_window;
  53
  54         EvViewPresentation *presentation_view;
  55         gint            moveback_monitor;
  56 };
  57
  58 #define EV_DSCWINDOW_GET_PRIVATE(object) \
  59         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_DSCWINDOW, EvDSCWindowPrivate))
  60 #define PAGE_CACHE_SIZE 52428800 /* 50MB */
  61 #define SIDEBAR_DEFAULT_SIZE    132
  62
  63
  64 G_DEFINE_TYPE (EvDSCWindow, ev_dscwindow, GTK_TYPE_WINDOW)
  65
  66 /**
  67  * ev_dscwindow_switch_monitors: Bring the presentation window and the control window each on the other monitor.
  68  *
  69  * @widget: Callback widget
  70  * @self: EvDSCWindow
  71  **/
  72 static gboolean
  73 ev_dscwindow_switch_monitors (GtkWidget *widget, EvDSCWindow *ev_dscwindow)
  74 {
  75
  76         if (!EV_IS_DSCWINDOW (ev_dscwindow))
  77                 return FALSE;
  78
  79         gint num_monitors = get_num_monitors (GTK_WINDOW (ev_dscwindow));
  80
  81         if (num_monitors == 2) {
  82                 GtkWindow *presentation_window = GTK_WINDOW (ev_dscwindow->priv->presentation_window);
  83                 GdkScreen *screen = gtk_window_get_screen (presentation_window);
  84
  85                 gint monitor_1 = gdk_screen_get_monitor_at_window (screen,
  86                         gtk_widget_get_window (GTK_WIDGET (presentation_window)));
  87
  88                 gint monitor_2 = (monitor_1 + 1) % 2;
  89
  90                 GdkRectangle coords;
  91                 gdk_screen_get_monitor_geometry (screen, monitor_2, &coords);
  92                 gtk_window_move (presentation_window, coords.x, coords.y);
  93                 ev_dscwindow->priv->moveback_monitor = monitor_1;
  94
  95                 gdk_screen_get_monitor_geometry (screen, monitor_1, &coords);
  96                 gtk_window_unmaximize (GTK_WINDOW (ev_dscwindow));
  97                 gtk_window_move (GTK_WINDOW (ev_dscwindow), coords.x, coords.y);
  98                 gtk_window_maximize (GTK_WINDOW (ev_dscwindow));
  99         }
 100         return TRUE;
 101 }
 102
 103 /**
 104  * ev_dscwindow_page_changed_cb: Callback to change page on all views
 105  *
 106  **/
 107 static void
 108 ev_dscwindow_page_changed_cb (EvDocumentModel *model,
 109                            GParamSpec      *pspec,
 110                            EvDSCWindow     *ev_dscwindow)
 111 {
 112         gint page = ev_document_model_get_page (model);
 113         if(page != ev_view_presentation_get_current_page (ev_dscwindow->priv->presentation_view)) {
 114                 ev_view_presentation_set_page (EV_VIEW_PRESENTATION(ev_dscwindow->priv->presentation_view), page);
 115         if( ev_document_model_get_page (ev_dscwindow->priv->model) != page)
 116                 ev_document_model_set_page(ev_dscwindow->priv->model, page);
 117         if( ev_document_model_get_page (ev_dscwindow->priv->notes_model) != page)
 118                 ev_document_model_set_page(ev_dscwindow->priv->notes_model, page);
 119         }
 120 }
 121 static void
 122 ev_dscwindow_presentation_page_changed_cb (EvViewPresentation *pview,
 123                            GParamSpec      *pspec,
 124                            EvDSCWindow     *ev_dscwindow)
 125 {
 126         gint page = ev_view_presentation_get_current_page (pview);
 127         if( ev_document_model_get_page (ev_dscwindow->priv->model) != page)
 128                 ev_document_model_set_page(ev_dscwindow->priv->model, page);
 129         if( ev_document_model_get_page (ev_dscwindow->priv->notes_model) != page)
 130                 ev_document_model_set_page(ev_dscwindow->priv->notes_model, page);
 131 }
 132
 133 /**
 134  * ev_dscwindow_notes_interaction: User wants to load a different file as notes.
 135  **/
 136 static gboolean
 137 ev_dscwindow_notes_interaction (GtkContainer *container, EvDSCWindow *ev_dscwindow)
 138 {
 139         GtkWidget *dialog;
 140
 141         dialog = gtk_file_chooser_dialog_new (
 142                 _("Open Document"),
 143                 GTK_WINDOW (ev_dscwindow),
 144                 GTK_FILE_CHOOSER_ACTION_OPEN,
 145                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 146                 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 147                 NULL);
 148
 149         ev_document_factory_add_filters (dialog, NULL);
 150         gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (dialog), FALSE);
 151         gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (dialog), TRUE);
 152
 153         if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
 154         {
 155                 char * uri = gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (dialog));
 156                 GError * error = NULL;
 157                 ev_view_set_loading (EV_VIEW (ev_dscwindow->priv->notesview), TRUE);
 158
 159                 if (ev_dscwindow->priv->notes_document) {
 160                         ev_document_load (ev_dscwindow->priv->notes_document, uri, &error);
 161                 } else {
 162                         ev_dscwindow->priv->notes_document = ev_document_factory_get_document (uri,
 163                                 &error);
 164                 }
 165                 g_free (uri);
 166                 if (error == NULL){
 167                         ev_dscwindow->priv->notes_model = ev_document_model_new_with_document (ev_dscwindow->priv->notes_document);
 168                         ev_view_set_model(EV_VIEW(ev_dscwindow->priv->notesview),
 169                                           ev_dscwindow->priv->notes_model);
 170                         g_signal_connect (G_OBJECT(ev_dscwindow->priv->notes_model),
 171                                           "notify::page",
 172                                           G_CALLBACK (ev_dscwindow_page_changed_cb),
 173                                           ev_dscwindow);
 174                 }
 175         }
 176         gtk_widget_destroy (dialog);
 177
 178         return TRUE;
 179 }
 180
 181 /**
 182  * ev_dscwindow_get_control: Get the control instance.
 183  *
 184  * If there is none, create one.
 185  *
 186  * Returns: control instance
 187  **/
 188 EvDSCWindow *
 189 ev_dscwindow_get_control (void)
 190 {
 191         static EvDSCWindow * control = NULL;
 192
 193         if (!control || !EV_IS_DSCWINDOW (control)) {
 194                 control = EV_DSCWINDOW (g_object_new (EV_TYPE_DSCWINDOW, NULL));
 195         }
 196
 197         return control;
 198 }
 199
 200 static void
 201 ev_dscwindow_window_placement (EvDSCWindow *ev_dscwindow)
 202 {
 203         gint num_monitors = get_num_monitors (GTK_WINDOW (ev_dscwindow));
 204         if (num_monitors == 2) {
 205                 GtkWindow * presentation_window = GTK_WINDOW (ev_dscwindow->priv->presentation_window);
 206                 GdkScreen * screen = gtk_window_get_screen (presentation_window);
 207                 gint work_monitor = gdk_screen_get_monitor_at_window (screen,
 208                         gtk_widget_get_window (GTK_WIDGET (presentation_window)));
 209                 gint presentation_monitor = (work_monitor + 1) % 2;
 210                 GdkRectangle coords;
 211                 gdk_screen_get_monitor_geometry (screen, presentation_monitor,
 212                         &coords);
 213
 214                 gtk_window_move (presentation_window, coords.x, coords.y);
 215                 ev_dscwindow->priv->moveback_monitor = work_monitor;
 216                 gtk_window_maximize (GTK_WINDOW (ev_dscwindow));
 217         }
 218 }
 219
 220 static gboolean
 221 ev_dscwindow_notes_clicked (GtkWidget *widget, GdkEvent *event,
 222         EvDSCWindow *self)
 223 {
 224         if (!self || !EV_IS_DSCWINDOW (self) || !event)
 225                 return FALSE;
 226         gint page = ev_document_model_get_page (self->priv->model);
 227
 228         if (event->type == GDK_2BUTTON_PRESS && ((GdkEventButton *)event)->button == 1) {
 229                 ev_dscwindow_notes_interaction (NULL, self);
 230         } else if (event->type == GDK_BUTTON_PRESS && ((GdkEventButton *)event)->button == 1) {
 231                 ev_document_model_set_page (self->priv->model, page+1);
 232         } else if (event->type == GDK_BUTTON_PRESS && ((GdkEventButton *)event)->button == 3) {
 233                 ev_document_model_set_page (self->priv->model, page-1);
 234         }
 235         return FALSE;
 236 }
 237
 238 /**
 239  * ev_dscwindow_set_presentation: Set presentation document
 240  * @presentation_window: Main window we can reuse for presentation
 241  **/
 242 void
 243 ev_dscwindow_set_presentation (EvDSCWindow *ev_dscwindow,
 244         EvWindow *presentation_window, EvDocument *document, EvViewPresentation *pview)
 245 {
 246         if (!EV_IS_WINDOW (presentation_window))
 247                 return;
 248
 249         ev_dscwindow->priv->presentation_window = GTK_WIDGET(presentation_window);
 250         ev_dscwindow->priv->presentation_document = document;
 251         ev_dscwindow->priv->presentation_view = EV_VIEW_PRESENTATION(pview);
 252         ev_document_model_set_document(ev_dscwindow->priv->model,
 253                 document);
 254         g_signal_connect_swapped (ev_dscwindow->priv->presentation_view,
 255                                   "destroy",
 256                                   G_CALLBACK (gtk_widget_destroy),
 257                                   ev_dscwindow);
 258         g_signal_connect (G_OBJECT(ev_dscwindow->priv->presentation_view),
 259                           "notify::page",
 260                           G_CALLBACK (ev_dscwindow_presentation_page_changed_cb),
 261                           ev_dscwindow);
 262         ev_dscwindow_window_placement (ev_dscwindow);
 263 }
 264
 265 /**
 266  * ev_dscwindow_end: Destroy control window but keep presentation
 267  */
 268 static gboolean
 269 ev_dscwindow_end (GtkWidget *widget, GdkEvent *event)
 270 {
 271         gtk_widget_destroy (GTK_WIDGET (ev_dscwindow_get_control ()));
 272         return TRUE;
 273 }
 274
 275 /**
 276  * ev_dscwindow_init: Initialize multihead presentation
 277 *
 278 * @ev_dscwindow: EvDSCWindow.
 279 *
 280 * ev_dscwindow_set_presentation has to be called afterwards for loading in a document. TBD
 281 **/
 282 static void
 283 ev_dscwindow_init (EvDSCWindow *ev_dscwindow)
 284 {
 285         ev_dscwindow->priv = EV_DSCWINDOW_GET_PRIVATE (ev_dscwindow);
 286         ev_dscwindow->priv->moveback_monitor = -1;
 287         ev_dscwindow->priv->notes_document = NULL;
 288
 289         gtk_window_set_title (GTK_WINDOW (ev_dscwindow), _("Presentation Control"));
 290
 291         GtkWidget *h = gtk_hpaned_new ();
 292         GtkWidget *v = gtk_vbox_new (FALSE, 0);
 293
 294         ev_dscwindow->priv->model = ev_document_model_new ();
 295         g_signal_connect (G_OBJECT(ev_dscwindow->priv->model),
 296                           "notify::page",
 297                           G_CALLBACK (ev_dscwindow_page_changed_cb),
 298                           ev_dscwindow);
 299         ev_dscwindow->priv->sidebar = ev_sidebar_new ();
 300         ev_sidebar_set_model (EV_SIDEBAR (ev_dscwindow->priv->sidebar),
 301                               ev_dscwindow->priv->model);
 302         gtk_box_pack_start (GTK_BOX (v), ev_dscwindow->priv->sidebar, TRUE , TRUE, 0);
 303         gtk_widget_show (ev_dscwindow->priv->sidebar);
 304
 305         GtkWidget *sidebar_widget;
 306         sidebar_widget = ev_sidebar_thumbnails_new ();
 307
 308         gtk_widget_show (sidebar_widget);
 309         ev_sidebar_add_page (EV_SIDEBAR (ev_dscwindow->priv->sidebar),
 310                              sidebar_widget);
 311
 312         ev_document_model_set_continuous (ev_dscwindow->priv->model, FALSE);
 313         ev_document_model_set_dual_page (ev_dscwindow->priv->model, FALSE);
 314         ev_document_model_set_sizing_mode (ev_dscwindow->priv->model, EV_SIZING_BEST_FIT);
 315
 316         GtkWidget *e = gtk_expander_new (_("Expensive features"));
 317         gtk_expander_set_expanded (GTK_EXPANDER (e), TRUE);
 318
 319         GtkWidget *t = gtk_toolbar_new ();
 320
 321         GtkToolItem* b_switch = gtk_tool_button_new (NULL, _("Switch monitors"));
 322         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_switch), "object-flip-horizontal");
 323         gtk_toolbar_insert (GTK_TOOLBAR (t), b_switch, -1);
 324         g_signal_connect (b_switch, "clicked",
 325                 G_CALLBACK (ev_dscwindow_switch_monitors), ev_dscwindow);
 326
 327         GtkToolItem* b_notes = gtk_tool_button_new (NULL, _("Load notes ..."));
 328         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_notes), "object-flip-horizontal");
 329         gtk_toolbar_insert (GTK_TOOLBAR (t), b_notes, -1);
 330         g_signal_connect (b_notes, "clicked",
 331                 G_CALLBACK (ev_dscwindow_notes_interaction), ev_dscwindow);
 332
 333         GtkToolItem* b_close = gtk_tool_button_new (NULL, _("End presentation"));
 334         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_close), "view-restore");
 335         gtk_toolbar_insert (GTK_TOOLBAR (t), b_close, -1);
 336
 337         g_signal_connect (b_close, "clicked",
 338                 G_CALLBACK (ev_dscwindow_end), NULL);
 339
 340         gtk_container_add (GTK_CONTAINER (e), t);
 341         gtk_box_pack_end (GTK_BOX (v), e, FALSE, TRUE, 0);
 342         gtk_paned_add1 (GTK_PANED (h), v);
 343
 344         ev_dscwindow->priv->notesview_scrolled_window = GTK_WIDGET (g_object_new (
 345                 GTK_TYPE_SCROLLED_WINDOW, "shadow-type", GTK_SHADOW_IN, NULL));
 346         gtk_paned_add2 (GTK_PANED (h), ev_dscwindow->priv->notesview_scrolled_window);
 347
 348         ev_dscwindow->priv->notesview = ev_view_new ();
 349         g_object_ref (ev_dscwindow->priv->notesview);
 350         gtk_container_add (GTK_CONTAINER (ev_dscwindow->priv->notesview_scrolled_window),
 351                 ev_dscwindow->priv->notesview);
 352         ev_dscwindow->priv->notes_model = ev_dscwindow->priv->model;
 353         ev_view_set_model (EV_VIEW (ev_dscwindow->priv->notesview), ev_dscwindow->priv->notes_model);
 354         gtk_widget_show_all (h);
 355         gtk_container_add (GTK_CONTAINER (ev_dscwindow), h);
 356
 357         gtk_drag_dest_unset (GTK_WIDGET (ev_dscwindow->priv->notesview));
 358         gtk_drag_dest_unset (GTK_WIDGET (ev_dscwindow->priv->sidebar));
 359
 360         gint click = GDK_BUTTON1_MOTION_MASK | GDK_KEY_PRESS_MASK;
 361         gtk_widget_add_events (GTK_WIDGET (ev_dscwindow->priv->sidebar), click);
 362         /* TODO: actions*/
 363         g_signal_connect (ev_dscwindow->priv->notesview, "button-press-event",
 364                           G_CALLBACK (ev_dscwindow_notes_clicked), ev_dscwindow);
 365 }
 366
 367
 368 static void
 369 ev_dscwindow_dispose (GObject *obj)
 370 {
 371         EvDSCWindow * ev_dscwindow = EV_DSCWINDOW (obj);
 372         EvDSCWindowPrivate *priv = ev_dscwindow->priv;
 373
 374         if (priv->moveback_monitor >= 0) {
 375                 GtkWindow * presentation_window = GTK_WINDOW (priv->presentation_window);
 376                 GdkRectangle coords;
 377
 378                 gdk_screen_get_monitor_geometry (
 379                         gtk_window_get_screen (presentation_window),
 380                         priv->moveback_monitor, &coords);
 381
 382                 gtk_window_move (presentation_window, coords.x, coords.y);
 383         }
 384         ev_window_stop_presentation (EV_WINDOW(priv->presentation_window), TRUE);
 385         /*if (priv->overview) {
 386                 g_object_unref (priv->overview);
 387                 priv->overview = NULL;
 388         }*/
 389
 390
 391         G_OBJECT_CLASS (ev_dscwindow_parent_class)->dispose (obj);
 392 }
 393
 394 static void
 395 ev_dscwindow_class_init (EvDSCWindowClass *ev_dscwindow_class)
 396 {
 397         GObjectClass *g_object_class = G_OBJECT_CLASS (ev_dscwindow_class);
 398         g_type_class_add_private (g_object_class, sizeof (EvDSCWindowPrivate));
 399         g_object_class->dispose  = ev_dscwindow_dispose;
 400 }
 401
 402 GtkWidget *
 403 ev_dscwindow_new (void)
 404 {
 405         EvDSCWindow *ev_dscwindow;
 406
 407         ev_dscwindow = g_object_new (EV_TYPE_DSCWINDOW, "type", GTK_WINDOW_TOPLEVEL, NULL);
 408         return GTK_WIDGET (ev_dscwindow);
 409 }