[gthumb] window: usa a stack with a transition effect for changing pages

[Paolo Bacchilega <paobac src gnome org>]

commit 82c90a9fdee8874c9f0d156ca7692e3d782df73e
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Tue Oct 22 19:49:13 2013 +0200

    window: usa a stack with a transition effect for changing pages

 gthumb/gth-window.c |   24 ++++++++++++------------
 1 files changed, 12 insertions(+), 12 deletions(-)
---
diff --git a/gthumb/gth-window.c b/gthumb/gth-window.c
index e2502a7..6f0fbac 100644
--- a/gthumb/gth-window.c
+++ b/gthumb/gth-window.c
@@ -41,7 +41,7 @@ struct _GthWindowPrivate {
        gboolean         use_header_bar;
        int              current_page;
        GtkWidget       *grid;
-       GtkWidget       *notebook;
+       GtkWidget       *stack;
        GtkWidget       *headerbar;
        GtkWidget       *menubar;
        GtkWidget       *toolbar;
@@ -49,6 +49,7 @@ struct _GthWindowPrivate {
        GtkWidget       *statusbar;
        GtkWidget      **toolbars;
        GtkWidget      **contents;
+       GtkWidget      **pages;
        GthWindowSize   *window_size;
        GtkWindowGroup  *window_group;
        GtkAccelGroup   *accel_group;
@@ -72,27 +73,24 @@ gth_window_set_n_pages (GthWindow *self,
        gtk_widget_show (self->priv->grid);
        gtk_container_add (GTK_CONTAINER (self), self->priv->grid);
 
-       self->priv->notebook = gtk_notebook_new ();
-       gtk_style_context_remove_class (gtk_widget_get_style_context (self->priv->notebook), 
GTK_STYLE_CLASS_NOTEBOOK);
-       gtk_notebook_set_show_tabs (GTK_NOTEBOOK (self->priv->notebook), FALSE);
-       gtk_notebook_set_show_border (GTK_NOTEBOOK (self->priv->notebook), FALSE);
-       gtk_widget_show (self->priv->notebook);
+       self->priv->stack = gtk_stack_new ();
+       gtk_stack_set_transition_type (GTK_STACK (self->priv->stack), GTK_STACK_TRANSITION_TYPE_CROSSFADE);
+       gtk_widget_show (self->priv->stack);
        gtk_grid_attach (GTK_GRID (self->priv->grid),
-                        self->priv->notebook,
+                        self->priv->stack,
                         0, 2,
                         1, 1);
 
        self->priv->toolbars = g_new0 (GtkWidget *, n_pages);
        self->priv->contents = g_new0 (GtkWidget *, n_pages);
+       self->priv->pages = g_new0 (GtkWidget *, n_pages);
 
        for (i = 0; i < n_pages; i++) {
                GtkWidget *page;
 
-               page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+               self->priv->pages[i] = page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
                gtk_widget_show (page);
-               gtk_notebook_append_page (GTK_NOTEBOOK (self->priv->notebook),
-                                         page,
-                                         NULL);
+               gtk_container_add (GTK_CONTAINER (self->priv->stack), page);
 
                self->priv->toolbars[i] = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
                gtk_widget_show (self->priv->toolbars[i]);
@@ -176,6 +174,7 @@ gth_window_finalize (GObject *object)
 
        g_free (window->priv->toolbars);
        g_free (window->priv->contents);
+       g_free (window->priv->pages);
        g_free (window->priv->window_size);
        g_object_unref (window->priv->window_group);
        g_object_unref (window->priv->accel_group);
@@ -210,7 +209,7 @@ gth_window_real_set_current_page (GthWindow *window,
                return;
 
        window->priv->current_page = page;
-       gtk_notebook_set_current_page (GTK_NOTEBOOK (window->priv->notebook), page);
+       gtk_stack_set_visible_child (GTK_STACK (window->priv->stack), window->priv->pages[page]);
 
        for (i = 0; i < window->priv->n_pages; i++)
                if (i == page)
@@ -301,6 +300,7 @@ gth_window_init (GthWindow *window)
        window->priv = G_TYPE_INSTANCE_GET_PRIVATE (window, GTH_TYPE_WINDOW, GthWindowPrivate);
        window->priv->grid = NULL;
        window->priv->contents = NULL;
+       window->priv->pages = NULL;
        window->priv->n_pages = 0;
        window->priv->current_page = GTH_WINDOW_PAGE_UNDEFINED;
        window->priv->menubar = NULL;