static gboolean
gtk_css_image_url_equal (GtkCssImage *image1,
GtkCssImage *image2)
{
GtkCssImageUrl *url1 = GTK_CSS_IMAGE_URL (image1);
GtkCssImageUrl *url2 = GTK_CSS_IMAGE_URL (image2);
return g_file_equal (url1->file, url2->file);
}
static int
gtk_css_image_url_get_height (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
return cairo_image_surface_get_height (url->surface);
}
static double
gtk_css_image_url_get_aspect_ratio (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
return _gtk_css_image_get_aspect_ratio (gtk_css_image_url_load_image (url, NULL));
}
static int
gtk_css_image_url_get_height (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
return _gtk_css_image_get_height (gtk_css_image_url_load_image (url, NULL));
}
static gboolean
gtk_css_image_url_is_invalid (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
return gtk_css_image_is_invalid (gtk_css_image_url_load_image (url, NULL));
}
static int
gtk_css_image_url_get_width (GtkCssImage *image)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
return _gtk_css_image_get_width (gtk_css_image_url_load_image (url));
}
static void
gtk_css_image_url_print (GtkCssImage *image,
GString *string)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
_gtk_css_image_print (gtk_css_image_url_load_image (url, NULL), string);
}
static gboolean
gtk_css_image_url_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
GdkPixbuf *pixbuf;
GFile *file;
cairo_t *cr;
GError *error = NULL;
GFileInputStream *input;
file = _gtk_css_parser_read_url (parser);
if (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 (file, "resource"))
{
char *uri = g_file_get_uri (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 (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);
}
g_object_unref (file);
if (pixbuf == NULL)
{
_gtk_css_parser_take_error (parser, error);
return FALSE;
}
url->surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
cr = cairo_create (url->surface);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
g_object_unref (pixbuf);
return TRUE;
}
static void
gtk_css_image_url_dispose (GObject *object)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (object);
g_clear_object (&url->file);
g_clear_object (&url->loaded_image);
G_OBJECT_CLASS (_gtk_css_image_url_parent_class)->dispose (object);
}
static void
gtk_css_image_url_snapshot (GtkCssImage *image,
GtkSnapshot *snapshot,
double width,
double height)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
gtk_css_image_snapshot (gtk_css_image_url_load_image (url, NULL), snapshot, width, height);
}
static void
gtk_css_image_url_draw (GtkCssImage *image,
cairo_t *cr,
double width,
double height)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
_gtk_css_image_draw (gtk_css_image_url_load_image (url), cr, width, height);
}
static gboolean
gtk_css_image_url_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
url->file = _gtk_css_parser_read_url (parser);
if (url->file == NULL)
return FALSE;
return TRUE;
}
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
gtk_css_image_url_parse (GtkCssImage *image,
GtkCssParser *parser)
{
GtkCssImageUrl *self = GTK_CSS_IMAGE_URL (image);
char *url, *scheme;
url = gtk_css_parser_consume_url (parser);
if (url == NULL)
return FALSE;
scheme = g_uri_parse_scheme (url);
if (scheme && g_ascii_strcasecmp (scheme, "data") == 0)
{
GInputStream *stream;
GdkPixbuf *pixbuf;
GBytes *bytes;
GError *error = NULL;
bytes = gtk_css_data_url_parse (url, NULL, &error);
if (bytes)
{
stream = g_memory_input_stream_new_from_bytes (bytes);
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, &error);
g_object_unref (stream);
if (pixbuf == NULL)
{
gtk_css_parser_emit_error (parser,
gtk_css_parser_get_start_location (parser),
gtk_css_parser_get_end_location (parser),
error);
g_clear_error (&error);
}
else
{
GdkTexture *texture = gdk_texture_new_for_pixbuf (pixbuf);
self->loaded_image = gtk_css_image_paintable_new (GDK_PAINTABLE (texture), GDK_PAINTABLE (texture));
g_object_unref (texture);
g_object_unref (pixbuf);
}
}
}
else
{
self->file = gtk_css_parser_resolve_url (parser, url);
}
g_free (url);
g_free (scheme);
return TRUE;
}
static void
gtk_css_image_url_dispose (GObject *object)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (object);
if (url->surface)
{
cairo_surface_destroy (url->surface);
url->surface = NULL;
}
G_OBJECT_CLASS (_gtk_css_image_url_parent_class)->dispose (object);
}
static void
gtk_css_image_url_draw (GtkCssImage *image,
cairo_t *cr,
double width,
double height)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
cairo_rectangle (cr, 0, 0, width, height);
cairo_scale (cr,
width / cairo_image_surface_get_width (url->surface),
height / cairo_image_surface_get_height (url->surface));
cairo_set_source_surface (cr, url->surface, 0, 0);
cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD);
cairo_fill (cr);
}
static GtkCssImage *
gtk_css_image_url_compute (GtkCssImage *image,
guint property_id,
GtkStyleProvider *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
GtkCssImage *copy;
GError *error = NULL;
copy = gtk_css_image_url_load_image (url, &error);
if (error)
{
GtkCssSection *section = gtk_css_style_get_section (style, property_id);
gtk_style_provider_emit_error (provider, section, error);
g_error_free (error);
}
return g_object_ref (copy);
}
static void
gtk_css_image_url_print (GtkCssImage *image,
GString *string)
{
#if CAIRO_HAS_PNG_FUNCTIONS
GtkCssImageUrl *url = GTK_CSS_IMAGE_URL (image);
GByteArray *array;
char *base64;
array = g_byte_array_new ();
cairo_surface_write_to_png_stream (url->surface, surface_write, array);
base64 = g_base64_encode (array->data, array->len);
g_byte_array_free (array, TRUE);
g_string_append (string, "url(\"data:image/png;base64,");
g_string_append (string, base64);
g_string_append (string, "\")");
g_free (base64);
#else
g_string_append (string, "none /* you need cairo png functions enabled to make this work */");
#endif
}
