working with signals

[evince.git] / libview / ev-view-presentation.c

diff --git a/libview/ev-view-presentation.c b/libview/ev-view-presentation.c
index 53acf2f361a671392d7c2a0ea0a3f95a2e5cc49a..6ee168beff4fd6679e24ccf7e65e5eb00fea8926 100644 (file)
--- a/libview/ev-view-presentation.c
+++ b/libview/ev-view-presentation.c
@@ -40,6 +40,7 @@ enum {
 };
 
 enum {
+       PAGE_CHANGED,
        CHANGE_PAGE,
        FINISHED,
         SIGNAL_EXTERNAL_LINK,
@@ -97,6 +98,8 @@ struct _EvViewPresentationClass
        GtkWidgetClass base_class;
 
        /* signals */
+       void (* page_changed)  (EvViewPresentation *pview,
+                               gint                page);
        void (* change_page)   (EvViewPresentation *pview,
                                 GtkScrollType       scroll);
        void (* finished)      (EvViewPresentation *pview);
@@ -488,6 +491,8 @@ ev_view_presentation_update_current_page (EvViewPresentation *pview,
                }
        }
 
+       g_signal_emit (pview, signals[PAGE_CHANGED], 0, page);
+       g_printf("pages: %d %d\n",page,pview->current_page;
        pview->current_page = page;
 
        if (pview->page_cache)
@@ -504,6 +509,19 @@ ev_view_presentation_update_current_page (EvViewPresentation *pview,
                gtk_widget_queue_draw (GTK_WIDGET (pview));
 }
 
+void
+ev_view_presentation_set_page (EvViewPresentation *pview, gint new_page)
+{
+       guint n_pages;
+
+       n_pages = ev_document_get_n_pages (pview->document);
+
+       if (new_page >= n_pages)
+               ev_view_presentation_set_end (pview);
+       else
+               ev_view_presentation_update_current_page (pview, new_page);
+}
+
 void
 ev_view_presentation_next_page (EvViewPresentation *pview)
 {
@@ -649,9 +667,9 @@ ev_view_presentation_goto_window_create (EvViewPresentation *pview)
        GtkWindow *toplevel, *goto_window;
 
        toplevel = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (pview)));
-       goto_window = GTK_WINDOW (pview->goto_window);
 
        if (pview->goto_window) {
+                goto_window = GTK_WINDOW (pview->goto_window);
                if (gtk_window_has_group (toplevel))
                        gtk_window_group_add_window (gtk_window_get_group (toplevel), goto_window);
                else if (gtk_window_has_group (goto_window))
@@ -661,6 +679,7 @@ ev_view_presentation_goto_window_create (EvViewPresentation *pview)
        }
 
        pview->goto_window = gtk_window_new (GTK_WINDOW_POPUP);
+        goto_window = GTK_WINDOW (pview->goto_window);
        gtk_window_set_screen (goto_window, gtk_widget_get_screen (GTK_WIDGET (pview)));
 
        if (gtk_window_has_group (toplevel))
@@ -1381,8 +1400,8 @@ ev_view_presentation_get_property (GObject    *object,
 
 static GObject *
 ev_view_presentation_constructor (GType                  type,
-                                 guint                  n_construct_properties,
-                                 GObjectConstructParam *construct_params)
+                                                                 guint                  n_construct_properties,
+                                                                 GObjectConstructParam *construct_params)
 {
        GObject            *object;
        EvViewPresentation *pview;
@@ -1469,6 +1488,15 @@ ev_view_presentation_class_init (EvViewPresentationClass *klass)
                              g_cclosure_marshal_VOID__ENUM,
                              G_TYPE_NONE, 1,
                              GTK_TYPE_SCROLL_TYPE);
+       signals [PAGE_CHANGED] =
+               g_signal_new ("page-changed",
+                             EV_TYPE_VIEW_PRESENTATION,
+                             G_SIGNAL_RUN_LAST,
+                             G_STRUCT_OFFSET (EvViewPresentationClass, page_changed),
+                             NULL, NULL,
+                             g_cclosure_marshal_VOID__INT,
+                             G_TYPE_NONE, 2,
+                             G_TYPE_INT, G_TYPE_INT);
        signals[FINISHED] =
                g_signal_new ("finished",
                              G_OBJECT_CLASS_TYPE (gobject_class),