Add functions to generate thumbnails for specific types of themes, for
* theme-thumbnail.[ch]: Add functions to generate thumbnails for specific types of themes, for instance a metacity theme thumbnail. svn path=/trunk/; revision=7653
This commit is contained in:
Denis Washington
parent
7f790a7a9a
commit
4fe155f858
3 changed files with 258 additions and 58 deletions
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@ -1,3 +1,9 @@
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2007-05-25 Denis Washington <denisw@svn.gnome.org>
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* theme-thumbnail.[ch]:
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Add functions to generate thumbnails for specific types of themes, for
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instance a metacity theme thumbnail.
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2007-05-24 Denis Washington <denisw@svn.gnome.org>
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* gconf-property-editor.c: (peditor_tree_view_widget_changed):
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@ -104,6 +104,77 @@ hbox_foreach (GtkWidget *widget,
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fake_expose_widget (widget, (GdkPixmap *) data, NULL);
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}
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static GdkPixbuf *
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create_folder_icon (char *icon_theme_name)
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{
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GtkIconTheme *icon_theme;
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GdkPixbuf *folder_icon = NULL, *retval;
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GtkIconInfo *folder_icon_info;
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const gchar *filename;
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gchar *example_icon_name;
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int width, height;
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gdouble scale;
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icon_theme = gtk_icon_theme_new ();
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gtk_icon_theme_set_custom_theme (icon_theme, icon_theme_name);
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folder_icon_info = NULL;
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/* Get the Example icon name in the theme if specified */
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example_icon_name = gtk_icon_theme_get_example_icon_name (icon_theme);
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if (example_icon_name != NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, example_icon_name, 48, GTK_ICON_LOOKUP_FORCE_SVG);
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g_free (example_icon_name);
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/* If an Example is not specified, fall back to using the folder icons in
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the order of Icon Nameing Spec, "gnome-fs-directory", and "folder" */
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "x-directory-normal", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "gnome-fs-directory", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "folder", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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g_object_unref (icon_theme);
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if (folder_icon_info != NULL)
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{
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filename = gtk_icon_info_get_filename (folder_icon_info);
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if (filename != NULL)
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{
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folder_icon = gdk_pixbuf_new_from_file (filename, NULL);
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}
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gtk_icon_info_free (folder_icon_info);
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}
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/* render the icon to the thumbnail */
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if (folder_icon == NULL)
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{
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GtkWidget *dummy;
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dummy = gtk_label_new ("");
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folder_icon = gtk_widget_render_icon (dummy,
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GTK_STOCK_MISSING_IMAGE,
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GTK_ICON_SIZE_DIALOG,
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NULL);
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gtk_widget_destroy (dummy);
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}
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/* Some icons don't come back at the requested dimensions, so we need to scale
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* them. The width is usually the largest dimension for icons that come at
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* irregular sizes, so use this to calculate the scale factor
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*/
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scale = 48.0 / gdk_pixbuf_get_width (folder_icon);
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width = 48;
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height = scale * gdk_pixbuf_get_height (folder_icon);
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retval = gdk_pixbuf_scale_simple (folder_icon, width, height, GDK_INTERP_BILINEAR);
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g_object_unref (folder_icon);
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return retval;
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}
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static void
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create_image (ThemeThumbnailData *theme_thumbnail_data,
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GdkPixbuf *pixbuf)
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@ -120,13 +191,8 @@ create_image (ThemeThumbnailData *theme_thumbnail_data,
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MetaFrameFlags flags;
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MetaTheme *theme = NULL;
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GtkSettings *settings;
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GtkIconTheme *icon_theme;
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GdkPixbuf *folder_icon = NULL;
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GtkIconInfo *folder_icon_info;
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const gchar *filename;
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gchar *example_icon_name;
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GdkPixbuf *icon;
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int width, height;
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double scale;
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settings = gtk_settings_get_default ();
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g_object_set (G_OBJECT (settings),
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@ -205,55 +271,11 @@ create_image (ThemeThumbnailData *theme_thumbnail_data,
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gdk_pixbuf_get_from_drawable (pixbuf, pixmap, NULL, 0, 0, 0, 0, ICON_SIZE_WIDTH, ICON_SIZE_HEIGHT);
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/* Handle the icon theme */
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icon_theme = gtk_icon_theme_new ();
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gtk_icon_theme_set_custom_theme (icon_theme, (char *) theme_thumbnail_data->icon_theme_name->data);
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icon = create_folder_icon ((char *) theme_thumbnail_data->icon_theme_name->data);
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width = gdk_pixbuf_get_width (icon);
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height = gdk_pixbuf_get_height (icon);
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folder_icon_info = NULL;
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/* Get the Example icon name in the theme if specified */
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example_icon_name = gtk_icon_theme_get_example_icon_name (icon_theme);
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if (example_icon_name != NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, example_icon_name, 48, GTK_ICON_LOOKUP_FORCE_SVG);
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g_free (example_icon_name);
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/* If an Example is not specified, fall back to using the folder icons in
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the order of Icon Nameing Spec, "gnome-fs-directory", and "folder" */
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "x-directory-normal", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "gnome-fs-directory", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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if (folder_icon_info == NULL)
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folder_icon_info = gtk_icon_theme_lookup_icon (icon_theme, "folder", 48, GTK_ICON_LOOKUP_FORCE_SVG);
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g_object_unref (icon_theme);
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if (folder_icon_info != NULL)
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{
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filename = gtk_icon_info_get_filename (folder_icon_info);
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if (filename != NULL)
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{
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folder_icon = gdk_pixbuf_new_from_file (filename, NULL);
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}
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gtk_icon_info_free (folder_icon_info);
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}
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/* render the icon to the thumbnail */
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if (folder_icon == NULL)
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folder_icon = gtk_widget_render_icon (window,
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GTK_STOCK_MISSING_IMAGE,
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GTK_ICON_SIZE_DIALOG,
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NULL);
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/* Some icons don't come back at the requested dimensions, so we need to scale
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* them. The width is usually the largest dimension for icons that come at
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* irregular sizes, so use this to calculate the scale factor
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*/
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scale = 48.0 / gdk_pixbuf_get_width (folder_icon);
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width = 48;
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height = scale * gdk_pixbuf_get_height (folder_icon);
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gdk_pixbuf_composite (folder_icon,
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gdk_pixbuf_composite (icon,
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pixbuf,
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align->allocation.x + align->allocation.width - width - 5,
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align->allocation.y + align->allocation.height - height - 5,
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@ -261,10 +283,10 @@ create_image (ThemeThumbnailData *theme_thumbnail_data,
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height,
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align->allocation.x + align->allocation.width - width - 5,
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align->allocation.y + align->allocation.height - height - 5,
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scale,
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scale,
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1.0,
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1.0,
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GDK_INTERP_BILINEAR, 255);
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g_object_unref (folder_icon);
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g_object_unref (icon);
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gtk_widget_destroy (window);
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}
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@ -681,3 +703,171 @@ theme_thumbnail_factory_init (int argc, char *argv[])
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theme_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
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}
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/* Functions for specific types of themes */
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GdkPixbuf *
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generate_gtk_theme_thumbnail (GnomeThemeInfo *info)
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{
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GtkSettings *settings;
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char *current_theme;
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GtkWidget *window, *vbox, *hbox, *stock_button, *checkbox, *radio, *progress;
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GtkRequisition requisition;
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GtkAllocation allocation;
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GdkVisual *visual;
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GdkPixmap *pixmap;
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GdkPixbuf *pixbuf, *ret;
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settings = gtk_settings_get_default ();
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g_object_get (G_OBJECT (settings), "gtk-theme-name", ¤t_theme, NULL);
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g_object_set (G_OBJECT (settings), "gtk-theme-name", info->name, NULL);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), ICON_SIZE_WIDTH, ICON_SIZE_HEIGHT + 20);
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vbox = gtk_vbox_new (FALSE, 6);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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stock_button = gtk_button_new_from_stock (GTK_STOCK_OPEN);
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gtk_box_pack_start (GTK_BOX (vbox), stock_button, FALSE, FALSE, 0);
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hbox = gtk_hbox_new (FALSE, 6);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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checkbox = gtk_check_button_new ();
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (checkbox), TRUE);
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gtk_box_pack_start (GTK_BOX (hbox), checkbox, FALSE, FALSE, 0);
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radio = gtk_radio_button_new_from_widget (NULL);
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gtk_box_pack_start (GTK_BOX (hbox), radio, FALSE, FALSE, 0);
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progress = gtk_progress_bar_new ();
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gtk_box_pack_start (GTK_BOX (hbox), progress, TRUE, TRUE, 0);
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gtk_widget_show_all (vbox);
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gtk_widget_realize (stock_button);
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gtk_widget_realize (GTK_BIN (stock_button)->child);
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gtk_widget_realize (checkbox);
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gtk_widget_realize (radio);
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gtk_widget_realize (progress);
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gtk_widget_map (stock_button);
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gtk_widget_map (GTK_BIN (stock_button)->child);
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gtk_widget_map (checkbox);
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gtk_widget_map (radio);
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gtk_widget_map (progress);
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gtk_widget_size_request (window, &requisition);
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allocation.x = 0;
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allocation.y = 0;
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allocation.width = ICON_SIZE_WIDTH;
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allocation.height = ICON_SIZE_HEIGHT;
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gtk_widget_size_allocate (window, &allocation);
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gtk_widget_size_request (window, &requisition);
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/* Draw the window */
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gtk_widget_ensure_style (window);
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g_assert (window->style);
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g_assert (window->style->font_desc);
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/* Create a pixmap */
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visual = gtk_widget_get_visual (window);
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pixmap = gdk_pixmap_new (NULL, ICON_SIZE_WIDTH, ICON_SIZE_HEIGHT, visual->depth);
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gdk_drawable_set_colormap (GDK_DRAWABLE (pixmap), gtk_widget_get_colormap (window));
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fake_expose_widget (window, pixmap, NULL);
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fake_expose_widget (stock_button, pixmap, NULL);
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gtk_container_foreach (GTK_CONTAINER (GTK_BIN (GTK_BIN (stock_button)->child)->child),
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hbox_foreach,
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pixmap);
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fake_expose_widget (GTK_BIN (stock_button)->child, pixmap, NULL);
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fake_expose_widget (checkbox, pixmap, NULL);
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fake_expose_widget (radio, pixmap, NULL);
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pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2);
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gdk_pixbuf_get_from_drawable (pixbuf, pixmap, NULL, 0, 0, 0, 0, ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2);
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ret = gdk_pixbuf_scale_simple (pixbuf, 96, 48, GDK_INTERP_BILINEAR);
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g_object_unref (pixbuf);
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gtk_widget_destroy (window);
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g_object_set (G_OBJECT (settings), "gtk-theme-name", current_theme, NULL);
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return ret;
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}
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GdkPixbuf *
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generate_metacity_theme_thumbnail (GnomeThemeInfo *info)
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{
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GtkWidget *window, *preview, *dummy;
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MetaFrameFlags flags;
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MetaTheme *theme;
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GtkRequisition requisition;
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GtkAllocation allocation;
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GdkVisual *visual;
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GdkPixmap *pixmap;
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GdkPixbuf *pixbuf, *ret;
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theme = meta_theme_load (info->name, NULL);
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flags = META_FRAME_ALLOWS_DELETE |
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META_FRAME_ALLOWS_MENU |
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META_FRAME_ALLOWS_MINIMIZE |
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META_FRAME_ALLOWS_MAXIMIZE |
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META_FRAME_ALLOWS_VERTICAL_RESIZE |
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META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
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META_FRAME_HAS_FOCUS |
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META_FRAME_ALLOWS_SHADE |
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META_FRAME_ALLOWS_MOVE;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2);
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preview = meta_preview_new ();
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meta_preview_set_frame_flags (META_PREVIEW (preview), flags);
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meta_preview_set_theme (META_PREVIEW (preview), theme);
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meta_preview_set_title (META_PREVIEW (preview), "");
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gtk_container_add (GTK_CONTAINER (window), preview);
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dummy = gtk_label_new ("");
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gtk_container_add (GTK_CONTAINER (preview), dummy);
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gtk_widget_realize (window);
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gtk_widget_realize (preview);
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gtk_widget_realize (dummy);
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gtk_widget_show_all (preview);
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gtk_widget_map (dummy);
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gtk_widget_size_request (window, &requisition);
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allocation.x = 0;
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allocation.y = 0;
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allocation.width = ICON_SIZE_WIDTH;
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allocation.height = ICON_SIZE_WIDTH / 2;
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gtk_widget_size_allocate (window, &allocation);
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gtk_widget_size_request (window, &requisition);
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/* Draw the window */
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gtk_widget_ensure_style (window);
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g_assert (window->style);
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g_assert (window->style->font_desc);
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/* Create a pixmap */
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visual = gtk_widget_get_visual (window);
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pixmap = gdk_pixmap_new (NULL, ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2, visual->depth);
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gdk_drawable_set_colormap (GDK_DRAWABLE (pixmap), gtk_widget_get_colormap (window));
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fake_expose_widget (window, pixmap, NULL);
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fake_expose_widget (preview, pixmap, NULL);
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pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2);
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gdk_pixbuf_get_from_drawable (pixbuf, pixmap, NULL, 0, 0, 0, 0, ICON_SIZE_WIDTH, ICON_SIZE_WIDTH / 2);
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ret = gdk_pixbuf_scale_simple (pixbuf, 96, 48, GDK_INTERP_BILINEAR);
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g_object_unref (pixbuf);
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gtk_widget_destroy (window);
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return ret;
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}
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GdkPixbuf *
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generate_icon_theme_thumbnail (GnomeThemeIconInfo *info)
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{
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return create_folder_icon (info->name);
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}
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@ -19,6 +19,10 @@ void theme_thumbnail_invalidate_cache (GnomeThemeMetaInfo *meta_theme_info
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void theme_thumbnail_factory_init (int argc,
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char *argv[]);
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/* Functions for specific types of themes */
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GdkPixbuf *generate_gtk_theme_thumbnail (GnomeThemeInfo *theme_info);
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GdkPixbuf *generate_metacity_theme_thumbnail (GnomeThemeInfo *theme_info);
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GdkPixbuf *generate_icon_theme_thumbnail (GnomeThemeIconInfo *theme_info);
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#endif /* __THEME_THUMBNAIL_H__ */
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