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_notes_interaction: User wants to load a different file as notes.
 105  **/
 106 static gboolean
 107 ev_dscwindow_notes_interaction (GtkContainer *container, EvDSCWindow *self)
 108 {
 109 /*
 110 +       EvDSCWindowPrivate *priv = EV_DSCWINDOW_GET_PRIVATE (self);
 111 +       GtkWidget *dialog;
 112 +
 113 +       dialog = gtk_file_chooser_dialog_new (
 114 +               _("Open Document"),
 115 +               GTK_WINDOW (self),
 116 +               GTK_FILE_CHOOSER_ACTION_OPEN,
 117 +               GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 118 +               GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 119 +               NULL);
 120 +
 121 +       ev_document_factory_add_filters (dialog, NULL);
 122 +       gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (dialog), FALSE);
 123 +       gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (dialog), TRUE);
 124 +
 125 +       if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
 126 +       {
 127 +               char * uri = gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (dialog));
 128 +               GError * error = NULL;
 129 +               ev_view_set_loading (EV_VIEW (priv->notesview), TRUE);
 130 +
 131 +               if (priv->notesdocument) {
 132 +                       ev_document_load (priv->notesdocument, uri, &error);
 133 +               } else {
 134 +                       priv->notesdocument = ev_document_factory_get_document (uri,
 135 +                               &error);
 136 +               }
 137 +               g_free (uri);
 138 +               if (error == NULL){
 139 +                       ev_view_set_document (EV_VIEW (priv->notesview),
 140 +                               priv->notesdocument);
 141 +                       /* TODO: go to the same page that is open at the moment, or
 142 +                        * move the presentation to the beginning. *//*
 143 +               }
 144 +       }
 145 +       gtk_widget_destroy (dialog);
 146 */
 147         return TRUE;
 148 }
 149
 150 /**
 151  * ev_dscwindow_get_control: Get the control instance.
 152  *
 153  * If there is none, create one.
 154  *
 155  * Returns: control instance
 156  **/
 157 EvDSCWindow *
 158 ev_dscwindow_get_control (void)
 159 {
 160         static EvDSCWindow * control = NULL;
 161
 162         if (!control || !EV_IS_DSCWINDOW (control)) {
 163                 control = EV_DSCWINDOW (g_object_new (EV_TYPE_DSCWINDOW, NULL));
 164         }
 165
 166         return control;
 167 }
 168
 169 /*TODO: Fix me!*/
 170 static void
 171 ev_dscwindow_window_placement (EvDSCWindow *ev_dscwindow)
 172 {
 173         gint num_monitors = get_num_monitors (GTK_WINDOW (ev_dscwindow));
 174         //if (num_monitors == 2) {
 175                 GtkWindow * presentation_window = GTK_WINDOW (ev_dscwindow->priv->presentation_window);
 176                 GdkScreen * screen = gtk_window_get_screen (presentation_window);
 177                 gint work_monitor = gdk_screen_get_monitor_at_window (screen,
 178                         gtk_widget_get_window (GTK_WIDGET (presentation_window)));
 179                 gint presentation_monitor = (work_monitor + 1) % 2;
 180                 GdkRectangle coords;
 181                 gdk_screen_get_monitor_geometry (screen, presentation_monitor,
 182                         &coords);
 183
 184                 gtk_window_move (presentation_window, coords.x, coords.y);
 185                 //ev_window_run_presentation (ev_dscwindow->priv->presentation_window);
 186                 ev_dscwindow->priv->moveback_monitor = work_monitor;
 187                 gtk_window_maximize (GTK_WINDOW (ev_dscwindow));
 188         //}
 189 }
 190 /**
 191  * ev_dscwindow_page_changed_cb: Callback to change page on all views
 192  *
 193  **/
 194 static void
 195 ev_dscwindow_page_changed_cb (EvDocumentModel *model,
 196                            GParamSpec      *pspec,
 197                            EvDSCWindow     *ev_dscwindow)
 198 {
 199         gint page = ev_document_model_get_page (model);
 200         if(page != ev_view_presentation_get_current_page (ev_dscwindow->priv->presentation_view))
 201                 ev_view_presentation_set_page (EV_VIEW_PRESENTATION(ev_dscwindow->priv->presentation_view), page);
 202 }
 203 static void
 204 ev_dscwindow_presentation_page_changed_cb (EvViewPresentation *pview,
 205                            GParamSpec      *pspec,
 206                            EvDSCWindow     *ev_dscwindow)
 207 {
 208         gint page = ev_view_presentation_get_current_page (pview);
 209         ev_document_model_set_page (ev_dscwindow->priv->model, page);
 210 }
 211
 212 static gboolean
 213 ev_dscwindow_notes_clicked (GtkWidget *widget, GdkEvent *event,
 214         EvDSCWindow *self)
 215 {
 216         if (!self || !EV_IS_DSCWINDOW (self) || !event)
 217                 return FALSE;
 218         gint page = ev_document_model_get_page (self->priv->model);
 219
 220         if (event->type == GDK_2BUTTON_PRESS && ((GdkEventButton *)event)->button == 1) {
 221                 ev_dscwindow_notes_interaction (NULL, self);
 222         } else if (event->type == GDK_BUTTON_PRESS && ((GdkEventButton *)event)->button == 1) {
 223                 ev_document_model_set_page (self->priv->model, page+1);
 224         } else if (event->type == GDK_BUTTON_PRESS && ((GdkEventButton *)event)->button == 3) {
 225                 ev_document_model_set_page (self->priv->model, page-1);
 226         }
 227         return FALSE;
 228 }
 229
 230 /**
 231  * ev_dscwindow_set_presentation: Set presentation document
 232  * @presentation_window: Main window we can reuse for presentation
 233  **/
 234 void
 235 ev_dscwindow_set_presentation (EvDSCWindow *ev_dscwindow,
 236         EvWindow *presentation_window, EvDocument *document, EvViewPresentation *pview)
 237 {
 238         if (!EV_IS_WINDOW (presentation_window))
 239                 return;
 240
 241         ev_dscwindow->priv->presentation_window = GTK_WIDGET(presentation_window);
 242         ev_dscwindow->priv->presentation_document = document;
 243         ev_dscwindow->priv->presentation_view = EV_VIEW_PRESENTATION(pview);
 244         ev_document_model_set_document(ev_dscwindow->priv->model,
 245                 document);
 246         g_signal_connect_swapped (ev_dscwindow->priv->presentation_view,
 247                                   "destroy",
 248                                   G_CALLBACK (gtk_widget_destroy),
 249                                   ev_dscwindow);
 250         g_signal_connect (G_OBJECT(ev_dscwindow->priv->presentation_view),
 251                           "notify::page",
 252                           G_CALLBACK (ev_dscwindow_presentation_page_changed_cb),
 253                           ev_dscwindow);
 254         ev_dscwindow_window_placement (ev_dscwindow);
 255 }
 256
 257 /**
 258  * ev_dscwindow_end: Destroy control window but keep presentation
 259  */
 260 static gboolean
 261 ev_dscwindow_end (GtkWidget *widget, GdkEvent *event)
 262 {
 263         gtk_widget_destroy (GTK_WIDGET (ev_dscwindow_get_control ()));
 264         return TRUE;
 265 }
 266
 267 /**
 268  * ev_dscwindow_init: Initialize multihead presentation
 269 *
 270 * @ev_dscwindow: EvDSCWindow.
 271 *
 272 * ev_dscwindow_set_presentation has to be called afterwards for loading in a document. TBD
 273 **/
 274 static void
 275 ev_dscwindow_init (EvDSCWindow *ev_dscwindow)
 276 {
 277         ev_dscwindow->priv = EV_DSCWINDOW_GET_PRIVATE (ev_dscwindow);
 278         ev_dscwindow->priv->moveback_monitor = -1;
 279         ev_dscwindow->priv->notes_document = NULL;
 280
 281         gtk_window_set_title (GTK_WINDOW (ev_dscwindow), _("Presentation Control"));
 282
 283         GtkWidget *h = gtk_hpaned_new ();
 284         GtkWidget *v = gtk_vbox_new (FALSE, 0);
 285
 286         ev_dscwindow->priv->model = ev_document_model_new ();
 287         g_signal_connect (G_OBJECT(ev_dscwindow->priv->model),
 288                           "notify::page",
 289                           G_CALLBACK (ev_dscwindow_page_changed_cb),
 290                           ev_dscwindow);
 291         ev_dscwindow->priv->sidebar = ev_sidebar_new ();
 292         ev_sidebar_set_model (EV_SIDEBAR (ev_dscwindow->priv->sidebar),
 293                               ev_dscwindow->priv->model);
 294         gtk_box_pack_start (GTK_BOX (v), ev_dscwindow->priv->sidebar, TRUE , TRUE, 0);
 295         gtk_widget_show (ev_dscwindow->priv->sidebar);
 296
 297         GtkWidget *sidebar_widget;
 298         sidebar_widget = ev_sidebar_thumbnails_new ();
 299
 300         gtk_widget_show (sidebar_widget);
 301         ev_sidebar_add_page (EV_SIDEBAR (ev_dscwindow->priv->sidebar),
 302                              sidebar_widget);
 303
 304         ev_document_model_set_continuous (ev_dscwindow->priv->model, FALSE);
 305         ev_document_model_set_dual_page (ev_dscwindow->priv->model, FALSE);
 306         ev_document_model_set_sizing_mode (ev_dscwindow->priv->model, EV_SIZING_BEST_FIT);
 307
 308         GtkWidget *e = gtk_expander_new (_("Expensive features"));
 309         gtk_expander_set_expanded (GTK_EXPANDER (e), TRUE);
 310
 311         GtkWidget *t = gtk_toolbar_new ();
 312
 313         GtkToolItem* b_switch = gtk_tool_button_new (NULL, _("Switch monitors"));
 314         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_switch), "object-flip-horizontal");
 315         gtk_toolbar_insert (GTK_TOOLBAR (t), b_switch, -1);
 316         g_signal_connect (b_switch, "clicked",
 317                 G_CALLBACK (ev_dscwindow_switch_monitors), ev_dscwindow);
 318
 319         GtkToolItem* b_notes = gtk_tool_button_new (NULL, _("Load notes ..."));
 320         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_notes), "object-flip-horizontal");
 321         gtk_toolbar_insert (GTK_TOOLBAR (t), b_notes, -1);
 322         g_signal_connect (b_notes, "clicked",
 323                 G_CALLBACK (ev_dscwindow_notes_interaction), ev_dscwindow);
 324
 325         GtkToolItem* b_close = gtk_tool_button_new (NULL, _("End presentation"));
 326         gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (b_close), "view-restore");
 327         gtk_toolbar_insert (GTK_TOOLBAR (t), b_close, -1);
 328         /*TODO: rework close*/
 329         g_signal_connect (b_close, "clicked",
 330                 G_CALLBACK (ev_dscwindow_end), NULL);
 331
 332         gtk_container_add (GTK_CONTAINER (e), t);
 333         gtk_box_pack_end (GTK_BOX (v), e, FALSE, TRUE, 0);
 334         gtk_paned_add1 (GTK_PANED (h), v);
 335
 336         ev_dscwindow->priv->notesview_scrolled_window = GTK_WIDGET (g_object_new (
 337                 GTK_TYPE_SCROLLED_WINDOW, "shadow-type", GTK_SHADOW_IN, NULL));
 338         gtk_paned_add2 (GTK_PANED (h), ev_dscwindow->priv->notesview_scrolled_window);
 339
 340         ev_dscwindow->priv->notesview = ev_view_new ();
 341         g_object_ref (ev_dscwindow->priv->notesview);
 342         gtk_container_add (GTK_CONTAINER (ev_dscwindow->priv->notesview_scrolled_window),
 343                 ev_dscwindow->priv->notesview);
 344         ev_view_set_model (EV_VIEW (ev_dscwindow->priv->notesview), ev_dscwindow->priv->model);
 345         gtk_widget_show_all (h);
 346         gtk_container_add (GTK_CONTAINER (ev_dscwindow), h);
 347
 348         gtk_drag_dest_unset (GTK_WIDGET (ev_dscwindow->priv->notesview));
 349         gtk_drag_dest_unset (GTK_WIDGET (ev_dscwindow->priv->sidebar));
 350
 351         gint click = GDK_BUTTON1_MOTION_MASK | GDK_KEY_PRESS_MASK;
 352         gtk_widget_add_events (GTK_WIDGET (ev_dscwindow->priv->sidebar), click);
 353         /* TODO: actions*/
 354         g_signal_connect (ev_dscwindow->priv->notesview, "button-press-event",
 355                           G_CALLBACK (ev_dscwindow_notes_clicked), ev_dscwindow);
 356 }
 357
 358
 359 static void
 360 ev_dscwindow_dispose (GObject *obj)
 361 {
 362         EvDSCWindow * ev_dscwindow = EV_DSCWINDOW (obj);
 363         EvDSCWindowPrivate *priv = ev_dscwindow->priv;
 364
 365         if (priv->moveback_monitor >= 0) {
 366                 GtkWindow * presentation_window = GTK_WINDOW (priv->presentation_window);
 367                 GdkRectangle coords;
 368
 369                 gdk_screen_get_monitor_geometry (
 370                         gtk_window_get_screen (presentation_window),
 371                         priv->moveback_monitor, &coords);
 372
 373                 gtk_window_move (presentation_window, coords.x, coords.y);
 374         }
 375         ev_window_stop_presentation (EV_WINDOW(priv->presentation_window), TRUE);
 376         /*if (priv->overview) {
 377                 g_object_unref (priv->overview);
 378                 priv->overview = NULL;
 379         }*/
 380
 381
 382         G_OBJECT_CLASS (ev_dscwindow_parent_class)->dispose (obj);
 383 }
 384
 385 static void
 386 ev_dscwindow_class_init (EvDSCWindowClass *ev_dscwindow_class)
 387 {
 388         GObjectClass *g_object_class = G_OBJECT_CLASS (ev_dscwindow_class);
 389         g_type_class_add_private (g_object_class, sizeof (EvDSCWindowPrivate));
 390         g_object_class->dispose  = ev_dscwindow_dispose;
 391 }
 392
 393 GtkWidget *
 394 ev_dscwindow_new (void)
 395 {
 396         EvDSCWindow *ev_dscwindow;
 397
 398         ev_dscwindow = g_object_new (EV_TYPE_DSCWINDOW, "type", GTK_WINDOW_TOPLEVEL, NULL);
 399         return GTK_WIDGET (ev_dscwindow);
 400 }