G_DEFINE_TYPE (GtkCssImageUrl, _gtk_css_image_url, GTK_TYPE_CSS_IMAGE)
+static GtkCssImage *
+gtk_css_image_url_load_image (GtkCssImageUrl *url)
+{
+ GdkPixbuf *pixbuf;
+ GError *error = NULL;
+ GFileInputStream *input;
+
+ if (url->loaded_image)
+ return url->loaded_image;
+
+ /* We special case resources here so we can use
+ gdk_pixbuf_new_from_resource, which in turn has some special casing
+ for GdkPixdata files to avoid duplicating the memory for the pixbufs */
+ if (g_file_has_uri_scheme (url->file, "resource"))
+ {
+ char *uri = g_file_get_uri (url->file);
+ char *resource_path = g_uri_unescape_string (uri + strlen ("resource://"), NULL);
+
+ pixbuf = gdk_pixbuf_new_from_resource (resource_path, &error);
+ g_free (resource_path);
+ g_free (uri);
+ }
+ else
+ {
+ input = g_file_read (url->file, NULL, &error);
+ if (input != NULL)
+ {
+ pixbuf = gdk_pixbuf_new_from_stream (G_INPUT_STREAM (input), NULL, &error);
+ g_object_unref (input);
+ }
+ else
+ {
+ pixbuf = NULL;
+ }
+ }
+
+ if (pixbuf == NULL)
+ {
+ cairo_surface_t *empty = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0);
+
+ /* XXX: Can we get the error somehow sent to the CssProvider?
+ * I don't like just dumping it to stderr or losing it completely. */
+ g_warning ("Error loading image: %s", error->message);
+ g_error_free (error);
+ url->loaded_image = _gtk_css_image_surface_new (empty);
+ cairo_surface_destroy (empty);
+ return url->loaded_image;
+ }
+
+ url->loaded_image = _gtk_css_image_surface_new_for_pixbuf (pixbuf);
+ g_object_unref (pixbuf);
+
+ return url->loaded_image;
+}
+
static int
gtk_css_image_url_get_width (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- return _gtk_css_image_get_width (url->loaded_image);
+ return _gtk_css_image_get_width (gtk_css_image_url_load_image (url));
}
static int
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- return _gtk_css_image_get_height (url->loaded_image);
+ return _gtk_css_image_get_height (gtk_css_image_url_load_image (url));
}
static double
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- return _gtk_css_image_get_aspect_ratio (url->loaded_image);
+ return _gtk_css_image_get_aspect_ratio (gtk_css_image_url_load_image (url));
}
static void
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- _gtk_css_image_draw (url->loaded_image, cr, width, height);
+ _gtk_css_image_draw (gtk_css_image_url_load_image (url), cr, width, height);
+}
+
+static GtkCssImage *
+gtk_css_image_url_compute (GtkCssImage *image,
+ guint property_id,
+ GtkStyleProviderPrivate *provider,
+ GtkCssComputedValues *values,
+ GtkCssComputedValues *parent_values,
+ GtkCssDependencies *dependencies)
+{
+ GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
+
+ return g_object_ref (gtk_css_image_url_load_image (url));
}
static gboolean
GtkCssParser *parser)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- GdkPixbuf *pixbuf;
- GError *error = NULL;
- GFileInputStream *input;
url->file = _gtk_css_parser_read_url (parser);
if (url->file == NULL)
return FALSE;
- /* We special case resources here so we can use
- gdk_pixbuf_new_from_resource, which in turn has some special casing
- for GdkPixdata files to avoid duplicating the memory for the pixbufs */
- if (g_file_has_uri_scheme (url->file, "resource"))
- {
- char *uri = g_file_get_uri (url->file);
- char *resource_path = g_uri_unescape_string (uri + strlen ("resource://"), NULL);
-
- pixbuf = gdk_pixbuf_new_from_resource (resource_path, &error);
- g_free (resource_path);
- g_free (uri);
- }
- else
- {
- input = g_file_read (url->file, NULL, &error);
- if (input == NULL)
- {
- _gtk_css_parser_take_error (parser, error);
- return FALSE;
- }
-
- pixbuf = gdk_pixbuf_new_from_stream (G_INPUT_STREAM (input), NULL, &error);
- g_object_unref (input);
- }
-
- if (pixbuf == NULL)
- {
- _gtk_css_parser_take_error (parser, error);
- return FALSE;
- }
-
- url->loaded_image = _gtk_css_image_surface_new_for_pixbuf (pixbuf);
- g_object_unref (pixbuf);
-
return TRUE;
}
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
- _gtk_css_image_print (url->loaded_image, string);
+ _gtk_css_image_print (gtk_css_image_url_load_image (url), string);
}
static void
image_class->get_width = gtk_css_image_url_get_width;
image_class->get_height = gtk_css_image_url_get_height;
image_class->get_aspect_ratio = gtk_css_image_url_get_aspect_ratio;
+ image_class->compute = gtk_css_image_url_compute;
image_class->draw = gtk_css_image_url_draw;
image_class->parse = gtk_css_image_url_parse;
image_class->print = gtk_css_image_url_print;