shell/ev-application.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2004 Martin Kretzschmar
   4  *
   5  *  Author:
   6  *    Martin Kretzschmar <martink@gnome.org>
   7  *
   8  * Evince is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * Evince is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #include "ev-application.h"
  24
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27 #include <glib-object.h>
  28 #include <gtk/gtkfilechooserdialog.h>
  29 #include <gtk/gtkstock.h>
  30 #include <gtk/gtkwidget.h>
  31 #include <gtk/gtkmain.h>
  32
  33 struct _EvApplicationPrivate {
  34         GList *windows;
  35 };
  36
  37 G_DEFINE_TYPE (EvApplication, ev_application, G_TYPE_OBJECT);
  38
  39 #define EV_APPLICATION_GET_PRIVATE(object) \
  40         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_APPLICATION, EvApplicationPrivate))
  41
  42 EvApplication *
  43 ev_application_get_instance (void)
  44 {
  45         static EvApplication *instance;
  46
  47         if (!instance)
  48                 instance = EV_APPLICATION (
  49                         g_object_new (EV_TYPE_APPLICATION, NULL));
  50
  51         return instance;
  52 }
  53
  54 static void
  55 window_destroy_cb (GtkObject *object, gpointer user_data)
  56 {
  57         EvApplication *application;
  58
  59         g_return_if_fail (EV_IS_WINDOW (object));
  60         g_return_if_fail (EV_IS_APPLICATION (user_data));
  61
  62         application = EV_APPLICATION (user_data);
  63         application->priv->windows =
  64                 g_list_remove (application->priv->windows, object);
  65
  66         if (application->priv->windows == NULL)
  67                 gtk_main_quit ();
  68 }
  69
  70 EvWindow *
  71 ev_application_new_window (EvApplication *application)
  72 {
  73         EvWindow *ev_window;
  74
  75         ev_window = EV_WINDOW (g_object_new (EV_TYPE_WINDOW,
  76                                              "type", GTK_WINDOW_TOPLEVEL,
  77                                              "default-height", 600,
  78                                              "default-width", 600,
  79                                              NULL));
  80         application->priv->windows =
  81                 g_list_prepend (application->priv->windows, ev_window);
  82         g_signal_connect (G_OBJECT (ev_window), "destroy",
  83                           G_CALLBACK (window_destroy_cb), application);
  84
  85         return ev_window;
  86 }
  87
  88 static int
  89 is_window_empty (const EvWindow *ev_window, gconstpointer dummy)
  90 {
  91         g_return_val_if_fail (EV_IS_WINDOW (ev_window), 0);
  92
  93         return ev_window_is_empty (ev_window)
  94                 ? 0
  95                 : -1;
  96 }
  97
  98 static EvWindow *
  99 ev_application_get_empty_window (EvApplication *application)
 100 {
 101         GList *node;
 102
 103         node = g_list_find_custom (application->priv->windows, NULL,
 104                                    (GCompareFunc)is_window_empty);
 105
 106         return node && node->data
 107                 ? EV_WINDOW (node->data)
 108                 : ev_application_new_window (application);
 109 }
 110
 111 void
 112 ev_application_open (EvApplication *application, GError *err)
 113 {
 114         EvWindow *ev_window;
 115         GtkWidget *chooser;
 116         GtkFileFilter *both_filter, *pdf_filter, *ps_filter, *pixbuf_filter, *all_filter;
 117
 118         ev_window = ev_application_get_empty_window (application);
 119
 120         chooser = gtk_file_chooser_dialog_new (_("Open document"),
 121                                                GTK_WINDOW (ev_window),
 122                                                GTK_FILE_CHOOSER_ACTION_OPEN,
 123                                                GTK_STOCK_CANCEL,
 124                                                GTK_RESPONSE_CANCEL,
 125                                                GTK_STOCK_OPEN, GTK_RESPONSE_OK,
 126                                                NULL);
 127
 128         both_filter = gtk_file_filter_new ();
 129         gtk_file_filter_set_name (both_filter,
 130                                   _("PostScript and PDF Documents"));
 131         gtk_file_filter_add_mime_type (both_filter, "application/postscript");
 132         gtk_file_filter_add_mime_type (both_filter, "application/x-gzpostscript");
 133         gtk_file_filter_add_mime_type (both_filter, "image/x-eps");
 134         gtk_file_filter_add_mime_type (both_filter, "application/pdf");
 135         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), both_filter);
 136
 137         ps_filter = gtk_file_filter_new ();
 138         gtk_file_filter_set_name (ps_filter, _("PostScript Documents"));
 139         gtk_file_filter_add_mime_type (ps_filter, "application/postscript");
 140         gtk_file_filter_add_mime_type (both_filter, "application/x-gzpostscript");
 141         gtk_file_filter_add_mime_type (ps_filter, "image/x-eps");
 142         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), ps_filter);
 143
 144         pdf_filter = gtk_file_filter_new ();
 145         gtk_file_filter_set_name (pdf_filter, _("PDF Documents"));
 146         gtk_file_filter_add_mime_type (pdf_filter, "application/pdf");
 147         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), pdf_filter);
 148
 149         pixbuf_filter = gtk_file_filter_new ();
 150         gtk_file_filter_set_name (pixbuf_filter, _("Images"));
 151         gtk_file_filter_add_pixbuf_formats (pixbuf_filter);
 152         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), pixbuf_filter);
 153
 154         all_filter = gtk_file_filter_new ();
 155         gtk_file_filter_set_name (all_filter, _("All Files"));
 156         gtk_file_filter_add_pattern (all_filter, "*");
 157         gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), all_filter);
 158
 159         gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser), both_filter);
 160
 161         if (gtk_dialog_run (GTK_DIALOG (chooser)) == GTK_RESPONSE_OK) {
 162                 char *uri;
 163
 164                 uri = gtk_file_chooser_get_uri (GTK_FILE_CHOOSER (chooser));
 165                 ev_window_open (ev_window, uri);
 166                 gtk_widget_show (GTK_WIDGET (ev_window));
 167                 g_free (uri);
 168         }
 169
 170         gtk_widget_destroy (GTK_WIDGET (chooser));
 171 }
 172
 173 static void
 174 ev_application_class_init (EvApplicationClass *ev_application_class)
 175 {
 176         GObjectClass *g_object_class;
 177
 178         g_object_class = G_OBJECT_CLASS (ev_application_class);
 179
 180         g_type_class_add_private (g_object_class,
 181                                   sizeof (EvApplicationPrivate));
 182 }
 183
 184 static void
 185 ev_application_init (EvApplication *ev_application)
 186 {
 187         ev_application->priv = EV_APPLICATION_GET_PRIVATE (ev_application);
 188 }
 189