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authorAndrea Cimitan <andrea.cimitan@gmail.com>2010-08-20 18:41:25 +0200
committerAndrea Cimitan <andrea.cimitan@gmail.com>2010-08-20 18:41:25 +0200
commitb70e73a6c45992ff93b4ab78683c9e9275329ea9 (patch)
tree686cd9e3da76b30a176b69cb558e58fa57951d2b
parent6c2b00b21e60c5b667bb3d82639190af58d3c847 (diff)
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Some code from the gnome-screensaver lock dialog. Will crash because gtk_widget_get_window (GTK_WIDGET(image)) returns NULL
-rw-r--r--src/metadata-widget.c145
1 files changed, 143 insertions, 2 deletions
diff --git a/src/metadata-widget.c b/src/metadata-widget.c
index aaf71e2..b51dbac 100644
--- a/src/metadata-widget.c
+++ b/src/metadata-widget.c
@@ -233,14 +233,155 @@ metadata_widget_property_update(DbusmenuMenuitem* item, gchar* property,
}
}
+
+static cairo_surface_t *
+surface_from_pixbuf (GdkPixbuf *pixbuf)
+{
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ surface = cairo_image_surface_create (gdk_pixbuf_get_has_alpha (pixbuf) ?
+ CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24,
+ gdk_pixbuf_get_width (pixbuf),
+ gdk_pixbuf_get_height (pixbuf));
+ cr = cairo_create (surface);
+ gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ return surface;
+}
+
+static void
+rounded_rectangle (cairo_t *cr,
+ gdouble aspect,
+ gdouble x,
+ gdouble y,
+ gdouble corner_radius,
+ gdouble width,
+ gdouble height)
+{
+ gdouble radius;
+ gdouble degrees;
+
+ radius = corner_radius / aspect;
+ degrees = G_PI / 180.0;
+
+ cairo_new_sub_path (cr);
+ cairo_arc (cr,
+ x + width - radius,
+ y + radius,
+ radius,
+ -90 * degrees,
+ 0 * degrees);
+ cairo_arc (cr,
+ x + width - radius,
+ y + height - radius,
+ radius,
+ 0 * degrees,
+ 90 * degrees);
+ cairo_arc (cr,
+ x + radius,
+ y + height - radius,
+ radius,
+ 90 * degrees,
+ 180 * degrees);
+ cairo_arc (cr,
+ x + radius,
+ y + radius,
+ radius,
+ 180 * degrees,
+ 270 * degrees);
+ cairo_close_path (cr);
+}
+
+static void
+image_set_from_pixbuf (GtkImage *image,
+ GdkPixbuf *source)
+{
+ cairo_t *cr;
+ cairo_t *cr_mask;
+ cairo_surface_t *surface;
+ GdkPixmap *pixmap;
+ GdkPixmap *bitmask;
+ int w;
+ int h;
+ int frame_width;
+ double radius;
+ GdkColor color;
+ double r;
+ double g;
+ double b;
+
+ frame_width = 5;
+
+ w = gdk_pixbuf_get_width (source) + frame_width * 2;
+ h = gdk_pixbuf_get_height (source) + frame_width * 2;
+
+ radius = w / 10;
+
+ pixmap = gdk_pixmap_new (gtk_widget_get_window (GTK_WIDGET (image)), w, h, -1);
+ bitmask = gdk_pixmap_new (gtk_widget_get_window (GTK_WIDGET (image)), w, h, 1);
+
+ if (gtk_widget_get_window (GTK_WIDGET (image)) == NULL)
+ return;
+
+ cr = gdk_cairo_create (pixmap);
+ cr_mask = gdk_cairo_create (bitmask);
+
+ /* setup mask */
+ cairo_rectangle (cr_mask, 0, 0, w, h);
+ cairo_set_operator (cr_mask, CAIRO_OPERATOR_CLEAR);
+ cairo_fill (cr_mask);
+
+ rounded_rectangle (cr_mask, 1.0, 0.5, 0.5, radius, w - 1, h - 1);
+ cairo_set_operator (cr_mask, CAIRO_OPERATOR_OVER);
+ cairo_set_source_rgb (cr_mask, 1, 1, 1);
+ cairo_fill (cr_mask);
+
+ color = gtk_widget_get_style (GTK_WIDGET (image))->bg [GTK_STATE_NORMAL];
+ r = (float)color.red / 65535.0;
+ g = (float)color.green / 65535.0;
+ b = (float)color.blue / 65535.0;
+
+ /* set up image */
+ cairo_rectangle (cr, 0, 0, w, h);
+ cairo_set_source_rgb (cr, r, g, b);
+ cairo_fill (cr);
+
+ rounded_rectangle (cr,
+ 1.0,
+ frame_width + 0.5,
+ frame_width + 0.5,
+ radius,
+ w - frame_width * 2 - 1,
+ h - frame_width * 2 - 1);
+ cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.3);
+ cairo_fill_preserve (cr);
+
+ surface = surface_from_pixbuf (source);
+ cairo_set_source_surface (cr, surface, frame_width, frame_width);
+ cairo_fill (cr);
+
+ gtk_image_set_from_pixmap (image, pixmap, bitmask);
+
+ cairo_surface_destroy (surface);
+
+ g_object_unref (bitmask);
+ g_object_unref (pixmap);
+
+ cairo_destroy (cr_mask);
+ cairo_destroy (cr);
+}
+
static void
update_album_art(MetadataWidget* self){
MetadataWidgetPrivate * priv = METADATA_WIDGET_GET_PRIVATE(self);
GdkPixbuf* pixbuf;
pixbuf = gdk_pixbuf_new_from_file(priv->image_path, NULL);
- pixbuf = gdk_pixbuf_scale_simple(pixbuf,60, 60, GDK_INTERP_BILINEAR);
+ pixbuf = gdk_pixbuf_scale_simple(pixbuf,60, 60, GDK_INTERP_BILINEAR);
g_debug("attempting to set the image with path %s", priv->image_path);
- gtk_image_set_from_pixbuf(GTK_IMAGE(priv->album_art), pixbuf);
+ image_set_from_pixbuf (GTK_IMAGE(priv->album_art), pixbuf);
g_object_unref(pixbuf);
}