HiDPI: Convert Pixbufs to Cairo Surfaces

This allows icons in most places to scale up properly for HiDPI
displays.

4 files changed, 100 insertions, 97 deletions

diff --git a/src/file-manager/fm-directory-view.c b/src/file-manager/fm-directory-view.c
index 46a8fd42..c18ddb6c 100644
--- a/src/file-manager/fm-directory-view.c
+++ b/src/file-manager/fm-directory-view.c
@@ -4404,7 +4404,7 @@ add_submenu (GtkUIManager *ui_manager,
 	     const char *parent_path,
 	     const char *uri,
 	     const char *label,
-	     GdkPixbuf *pixbuf,
+	     cairo_surface_t *surface,
 	     gboolean add_action)
 {
 	char *escaped_label;
@@ -4424,10 +4424,10 @@ add_submenu (GtkUIManager *ui_manager,
 						 escaped_label,
 						 NULL,
 						 NULL);
-			if (pixbuf != NULL) {
+			if (surface != NULL) {
 				g_object_set_data_full (G_OBJECT (action), "menu-icon",
-							g_object_ref (pixbuf),
-							g_object_unref);
+							cairo_surface_reference (surface),
+							cairo_surface_destroy);
 			}
 
 			g_object_set (action, "hide-if-empty", FALSE, NULL);
@@ -4902,12 +4902,12 @@ extension_action_callback (GtkAction *action,
 	}
 }
 
-static GdkPixbuf *
+static cairo_surface_t *
 get_menu_icon (const char *icon_name,
 	       GtkWidget  *widget)
 {
 	CajaIconInfo *info;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	int size, scale;
 
 	size = caja_get_icon_size_for_stock_size (GTK_ICON_SIZE_MENU);
@@ -4918,28 +4918,28 @@ get_menu_icon (const char *icon_name,
 	} else {
 		info = caja_icon_info_lookup_from_name (icon_name, size, scale);
 	}
-	pixbuf = caja_icon_info_get_pixbuf_nodefault_at_size (info, size);
+	surface = caja_icon_info_get_surface_nodefault_at_size (info, size);
 	g_object_unref (info);
 
-	return pixbuf;
+	return surface;
 }
 
-static GdkPixbuf *
+static cairo_surface_t *
 get_menu_icon_for_file (CajaFile  *file,
 			GtkWidget *widget)
 {
 	CajaIconInfo *info;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	int size, scale;
 
 	size = caja_get_icon_size_for_stock_size (GTK_ICON_SIZE_MENU);
 	scale = gtk_widget_get_scale_factor (widget);
 
 	info = caja_file_get_icon (file, size, scale, 0);
-	pixbuf = caja_icon_info_get_pixbuf_nodefault_at_size (info, size);
+	surface = caja_icon_info_get_surface_nodefault_at_size (info, size);
 	g_object_unref (info);
 
-	return pixbuf;
+	return surface;
 }
 
 static GtkAction *
@@ -4950,7 +4950,7 @@ add_extension_action_for_files (FMDirectoryView *view,
 	char *name, *label, *tip, *icon;
 	gboolean sensitive, priority;
 	GtkAction *action;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	ExtensionActionCallbackData *data;
 
 	g_object_get (G_OBJECT (item),
@@ -4966,11 +4966,11 @@ add_extension_action_for_files (FMDirectoryView *view,
 				 icon);
 
 	if (icon != NULL) {
-		pixbuf = get_menu_icon (icon, GTK_WIDGET (view));
-		if (pixbuf != NULL) {
+		surface = get_menu_icon (icon, GTK_WIDGET (view));
+		if (surface != NULL) {
 			g_object_set_data_full (G_OBJECT (action), "menu-icon",
-						pixbuf,
-						g_object_unref);
+						surface,
+						cairo_surface_destroy);
 		}
 	}
 
@@ -5415,7 +5415,7 @@ add_script_to_scripts_menus (FMDirectoryView *directory_view,
 	char *uri;
 	char *action_name;
 	char *escaped_label;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	GtkUIManager *ui_manager;
 	GtkAction *action;
 
@@ -5433,11 +5433,11 @@ add_script_to_scripts_menus (FMDirectoryView *directory_view,
 				 tip,
 				 NULL);
 
-	pixbuf = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
-	if (pixbuf != NULL) {
+	surface = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
+	if (surface != NULL) {
 		g_object_set_data_full (G_OBJECT (action), "menu-icon",
-					pixbuf,
-					g_object_unref);
+					surface,
+					cairo_surface_destroy);
 	}
 
 	g_signal_connect_data (action, "activate",
@@ -5490,19 +5490,19 @@ add_submenu_to_directory_menus (FMDirectoryView *directory_view,
 				const char *popup_bg_path)
 {
 	char *name;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	char *uri;
 	GtkUIManager *ui_manager;
 
 	ui_manager = caja_window_info_get_ui_manager (directory_view->details->window);
 	uri = caja_file_get_uri (file);
 	name = caja_file_get_display_name (file);
-	pixbuf = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
-	add_submenu (ui_manager, action_group, merge_id, menu_path, uri, name, pixbuf, TRUE);
-	add_submenu (ui_manager, action_group, merge_id, popup_path, uri, name, pixbuf, FALSE);
-	add_submenu (ui_manager, action_group, merge_id, popup_bg_path, uri, name, pixbuf, FALSE);
-	if (pixbuf) {
-		g_object_unref (pixbuf);
+	surface = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
+	add_submenu (ui_manager, action_group, merge_id, menu_path, uri, name, surface, TRUE);
+	add_submenu (ui_manager, action_group, merge_id, popup_path, uri, name, surface, FALSE);
+	add_submenu (ui_manager, action_group, merge_id, popup_bg_path, uri, name, surface, FALSE);
+	if (surface) {
+		cairo_surface_destroy (surface);
 	}
 	g_free (name);
 	g_free (uri);
@@ -5661,7 +5661,7 @@ add_template_to_templates_menus (FMDirectoryView *directory_view,
 {
 	char *tmp, *tip, *uri, *name;
 	char *escaped_label;
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	char *action_name;
 	CreateTemplateParameters *parameters;
 	GtkUIManager *ui_manager;
@@ -5684,11 +5684,11 @@ add_template_to_templates_menus (FMDirectoryView *directory_view,
 				 tip,
 				 NULL);
 
-	pixbuf = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
-	if (pixbuf != NULL) {
+	surface = get_menu_icon_for_file (file, GTK_WIDGET (directory_view));
+	if (surface != NULL) {
 		g_object_set_data_full (G_OBJECT (action), "menu-icon",
-					pixbuf,
-					g_object_unref);
+					surface,
+					cairo_surface_destroy);
 	}
 
 	g_signal_connect_data (action, "activate",
@@ -7584,17 +7584,17 @@ connect_proxy (FMDirectoryView *view,
 	       GtkWidget *proxy,
 	       GtkActionGroup *action_group)
 {
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *surface;
 	GtkWidget *image;
 
 	if (strcmp (gtk_action_get_name (action), FM_ACTION_NEW_EMPTY_FILE) == 0 &&
 	    GTK_IS_IMAGE_MENU_ITEM (proxy)) {
-		pixbuf = get_menu_icon ("text-x-generic", GTK_WIDGET (view));
-		if (pixbuf != NULL) {
-			image = gtk_image_new_from_pixbuf (pixbuf);
+		surface = get_menu_icon ("text-x-generic", GTK_WIDGET (view));
+		if (surface != NULL) {
+			image = gtk_image_new_from_surface (surface);
 			gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), image);
 
-			g_object_unref (pixbuf);
+			cairo_surface_destroy (surface);
 		}
 	}
 }
diff --git a/src/file-manager/fm-tree-model.c b/src/file-manager/fm-tree-model.c
index e3bcfd3c..fd9bf074 100644
--- a/src/file-manager/fm-tree-model.c
+++ b/src/file-manager/fm-tree-model.c
@@ -36,6 +36,7 @@
 #include <libcaja-private/caja-file.h>
 #include <gtk/gtk.h>
 #include <string.h>
+#include <cairo-gobject.h>
 
 enum
 {
@@ -64,8 +65,8 @@ struct TreeNode
     char *display_name;
     GIcon *icon;
     GMount *mount;
-    GdkPixbuf *closed_pixbuf;
-    GdkPixbuf *open_pixbuf;
+    cairo_surface_t *closed_surface;
+    cairo_surface_t *open_surface;
 
     FMTreeModelRoot *root;
 
@@ -217,8 +218,11 @@ tree_node_destroy (FMTreeModel *model, TreeNode *node)
     g_object_unref (node->file);
     g_free (node->display_name);
     object_unref_if_not_NULL (node->icon);
-    object_unref_if_not_NULL (node->closed_pixbuf);
-    object_unref_if_not_NULL (node->open_pixbuf);
+
+    if (node->closed_surface != NULL)
+        cairo_surface_destroy (node->closed_surface);
+    if (node->open_surface)
+        cairo_surface_destroy (node->open_surface);
 
     g_assert (node->done_loading_id == 0);
     g_assert (node->files_added_id == 0);
@@ -253,24 +257,24 @@ tree_node_parent (TreeNode *node, TreeNode *parent)
     parent->first_child = node;
 }
 
-static GdkPixbuf *
+static cairo_surface_t *
 get_menu_icon (GIcon *icon)
 {
     CajaIconInfo *info;
-    GdkPixbuf *pixbuf;
+    cairo_surface_t *surface;
     int size, scale;
 
     size = caja_get_icon_size_for_stock_size (GTK_ICON_SIZE_MENU);
     scale = gdk_window_get_scale_factor (gdk_get_default_root_window ());
 
     info = caja_icon_info_lookup (icon, size, scale);
-    pixbuf = caja_icon_info_get_pixbuf_nodefault_at_size (info, size);
+    surface = caja_icon_info_get_surface_nodefault_at_size (info, size);
     g_object_unref (info);
 
-    return pixbuf;
+    return surface;
 }
 
-static GdkPixbuf *
+static cairo_surface_t *
 get_menu_icon_for_file (TreeNode *node,
                         CajaFile *file,
                         CajaFileIconFlags flags)
@@ -278,7 +282,7 @@ get_menu_icon_for_file (TreeNode *node,
     CajaIconInfo *info;
     GIcon *gicon, *emblem_icon, *emblemed_icon;
     GEmblem *emblem;
-    GdkPixbuf *pixbuf, *retval;
+    cairo_surface_t *surface, *retval;
     gboolean highlight;
     int size, scale;
     FMTreeModel *model;
@@ -324,7 +328,7 @@ get_menu_icon_for_file (TreeNode *node,
     g_list_free_full (emblem_icons, g_object_unref);
 
     info = caja_icon_info_lookup (gicon, size, scale);
-    retval = caja_icon_info_get_pixbuf_nodefault_at_size (info, size);
+    retval = caja_icon_info_get_surface_nodefault_at_size (info, size);
     model = node->root->model;
 
     g_object_unref (gicon);
@@ -334,12 +338,12 @@ get_menu_icon_for_file (TreeNode *node,
 
     if (highlight)
     {
-        pixbuf = eel_create_spotlight_pixbuf (retval);
+        surface = eel_create_spotlight_surface (retval, scale);
 
-        if (pixbuf != NULL)
+        if (surface != NULL)
         {
-            g_object_unref (retval);
-            retval = pixbuf;
+            cairo_surface_destroy (retval);
+            retval = surface;
         }
     }
 
@@ -348,9 +352,9 @@ get_menu_icon_for_file (TreeNode *node,
     return retval;
 }
 
-static GdkPixbuf *
-tree_node_get_pixbuf (TreeNode *node,
-                      CajaFileIconFlags flags)
+static cairo_surface_t *
+tree_node_get_surface (TreeNode *node,
+                       CajaFileIconFlags flags)
 {
     if (node->parent == NULL)
     {
@@ -360,37 +364,37 @@ tree_node_get_pixbuf (TreeNode *node,
 }
 
 static gboolean
-tree_node_update_pixbuf (TreeNode *node,
-                         GdkPixbuf **pixbuf_storage,
+tree_node_update_surface (TreeNode *node,
+                         cairo_surface_t **surface_storage,
                          CajaFileIconFlags flags)
 {
-    GdkPixbuf *pixbuf;
+    cairo_surface_t *surface;
 
-    if (*pixbuf_storage == NULL)
+    if (*surface_storage == NULL)
     {
         return FALSE;
     }
-    pixbuf = tree_node_get_pixbuf (node, flags);
-    if (pixbuf == *pixbuf_storage)
+    surface = tree_node_get_surface (node, flags);
+    if (surface == *surface_storage)
     {
-        g_object_unref (pixbuf);
+        cairo_surface_destroy (surface);
         return FALSE;
     }
-    g_object_unref (*pixbuf_storage);
-    *pixbuf_storage = pixbuf;
+    cairo_surface_destroy (*surface_storage);
+    *surface_storage = surface;
     return TRUE;
 }
 
 static gboolean
-tree_node_update_closed_pixbuf (TreeNode *node)
+tree_node_update_closed_surface (TreeNode *node)
 {
-    return tree_node_update_pixbuf (node, &node->closed_pixbuf, 0);
+    return tree_node_update_surface (node, &node->closed_surface, 0);
 }
 
 static gboolean
-tree_node_update_open_pixbuf (TreeNode *node)
+tree_node_update_open_surface (TreeNode *node)
 {
-    return tree_node_update_pixbuf (node, &node->open_pixbuf, CAJA_FILE_ICON_FLAGS_FOR_OPEN_FOLDER);
+    return tree_node_update_surface (node, &node->open_surface, CAJA_FILE_ICON_FLAGS_FOR_OPEN_FOLDER);
 }
 
 static gboolean
@@ -418,24 +422,24 @@ tree_node_update_display_name (TreeNode *node)
     return TRUE;
 }
 
-static GdkPixbuf *
-tree_node_get_closed_pixbuf (TreeNode *node)
+static cairo_surface_t *
+tree_node_get_closed_surface (TreeNode *node)
 {
-    if (node->closed_pixbuf == NULL)
+    if (node->closed_surface == NULL)
     {
-        node->closed_pixbuf = tree_node_get_pixbuf (node, 0);
+        node->closed_surface = tree_node_get_surface (node, 0);
     }
-    return node->closed_pixbuf;
+    return node->closed_surface;
 }
 
-static GdkPixbuf *
-tree_node_get_open_pixbuf (TreeNode *node)
+static cairo_surface_t *
+tree_node_get_open_surface (TreeNode *node)
 {
-    if (node->open_pixbuf == NULL)
+    if (node->open_surface == NULL)
     {
-        node->open_pixbuf = tree_node_get_pixbuf (node, CAJA_FILE_ICON_FLAGS_FOR_OPEN_FOLDER);
+        node->open_surface = tree_node_get_surface (node, CAJA_FILE_ICON_FLAGS_FOR_OPEN_FOLDER);
     }
-    return node->open_pixbuf;
+    return node->open_surface;
 }
 
 static const char *
@@ -882,8 +886,8 @@ update_node_without_reporting (FMTreeModel *model, TreeNode *node)
     }
 
     changed |= tree_node_update_display_name (node);
-    changed |= tree_node_update_closed_pixbuf (node);
-    changed |= tree_node_update_open_pixbuf (node);
+    changed |= tree_node_update_closed_surface (node);
+    changed |= tree_node_update_open_surface (node);
 
     return changed;
 }
@@ -1204,10 +1208,10 @@ fm_tree_model_get_column_type (GtkTreeModel *model, int index)
     {
     case FM_TREE_MODEL_DISPLAY_NAME_COLUMN:
         return G_TYPE_STRING;
-    case FM_TREE_MODEL_CLOSED_PIXBUF_COLUMN:
-        return GDK_TYPE_PIXBUF;
-    case FM_TREE_MODEL_OPEN_PIXBUF_COLUMN:
-        return GDK_TYPE_PIXBUF;
+    case FM_TREE_MODEL_CLOSED_SURFACE_COLUMN:
+        return CAIRO_GOBJECT_TYPE_SURFACE;
+    case FM_TREE_MODEL_OPEN_SURFACE_COLUMN:
+        return CAIRO_GOBJECT_TYPE_SURFACE;
     case FM_TREE_MODEL_FONT_STYLE_COLUMN:
         return PANGO_TYPE_STYLE;
     default:
@@ -1364,13 +1368,13 @@ fm_tree_model_get_value (GtkTreeModel *model, GtkTreeIter *iter, int column, GVa
             g_value_set_string (value, tree_node_get_display_name (node));
         }
         break;
-    case FM_TREE_MODEL_CLOSED_PIXBUF_COLUMN:
-        g_value_init (value, GDK_TYPE_PIXBUF);
-        g_value_set_object (value, node == NULL ? NULL : tree_node_get_closed_pixbuf (node));
+    case FM_TREE_MODEL_CLOSED_SURFACE_COLUMN:
+        g_value_init (value, CAIRO_GOBJECT_TYPE_SURFACE);
+        g_value_set_boxed (value, node == NULL ? NULL : tree_node_get_closed_surface (node));
         break;
-    case FM_TREE_MODEL_OPEN_PIXBUF_COLUMN:
-        g_value_init (value, GDK_TYPE_PIXBUF);
-        g_value_set_object (value, node == NULL ? NULL : tree_node_get_open_pixbuf (node));
+    case FM_TREE_MODEL_OPEN_SURFACE_COLUMN:
+        g_value_init (value, CAIRO_GOBJECT_TYPE_SURFACE);
+        g_value_set_boxed (value, node == NULL ? NULL : tree_node_get_open_surface (node));
         break;
     case FM_TREE_MODEL_FONT_STYLE_COLUMN:
         g_value_init (value, PANGO_TYPE_STYLE);
diff --git a/src/file-manager/fm-tree-model.h b/src/file-manager/fm-tree-model.h
index 2e459392..a5d05862 100644
--- a/src/file-manager/fm-tree-model.h
+++ b/src/file-manager/fm-tree-model.h
@@ -47,8 +47,8 @@
 enum
 {
     FM_TREE_MODEL_DISPLAY_NAME_COLUMN,
-    FM_TREE_MODEL_CLOSED_PIXBUF_COLUMN,
-    FM_TREE_MODEL_OPEN_PIXBUF_COLUMN,
+    FM_TREE_MODEL_CLOSED_SURFACE_COLUMN,
+    FM_TREE_MODEL_OPEN_SURFACE_COLUMN,
     FM_TREE_MODEL_FONT_STYLE_COLUMN,
     FM_TREE_MODEL_NUM_COLUMNS
 };
diff --git a/src/file-manager/fm-tree-view.c b/src/file-manager/fm-tree-view.c
index 96c465aa..e1846d83 100644
--- a/src/file-manager/fm-tree-view.c
+++ b/src/file-manager/fm-tree-view.c
@@ -39,6 +39,7 @@
 #include <gtk/gtk.h>
 #include <glib/gi18n.h>
 #include <gio/gio.h>
+#include <cairo-gobject.h>
 #include <libcaja-private/caja-clipboard.h>
 #include <libcaja-private/caja-clipboard-monitor.h>
 #include <libcaja-private/caja-desktop-icon-file.h>
@@ -1464,9 +1465,7 @@ create_tree (FMTreeView *view)
     cell = gtk_cell_renderer_pixbuf_new ();
     gtk_tree_view_column_pack_start (column, cell, FALSE);
     gtk_tree_view_column_set_attributes (column, cell,
-                                         "pixbuf", FM_TREE_MODEL_CLOSED_PIXBUF_COLUMN,
-                                         "pixbuf_expander_closed", FM_TREE_MODEL_CLOSED_PIXBUF_COLUMN,
-                                         "pixbuf_expander_open", FM_TREE_MODEL_OPEN_PIXBUF_COLUMN,
+                                         "surface", FM_TREE_MODEL_CLOSED_SURFACE_COLUMN,
                                          NULL);
 
     cell = gtk_cell_renderer_text_new ();