rounded rectangles are now working

1 files changed, 165 insertions, 16 deletions

diff --git a/src/metadata-widget.c b/src/metadata-widget.c
index fae3198..f600238 100644
--- a/src/metadata-widget.c
+++ b/src/metadata-widget.c
@@ -35,6 +35,7 @@ struct _MetadataWidgetPrivate
 	GtkWidget* hbox;
 	GtkWidget* album_art;
   GString*	 image_path;
+  GString*	 old_image_path;
 	GtkWidget* artist_label;
 	GtkWidget* piece_label;
 	GtkWidget* container_label;	
@@ -60,11 +61,14 @@ static void metadata_widget_property_update (DbusmenuMenuitem* item,
                                        			 GValue* value,
                                              gpointer userdata);
 
-static void metadata_widget_update_album_art(MetadataWidget* self);
 static void metadata_widget_style_labels(MetadataWidget* self,
                                          GtkLabel* label);
 
 void metadata_widget_set_style(GtkWidget* button, GtkStyle* style);
+static void image_set_from_pixbuf (GtkWidget  *widget,
+												           MetadataWidget* metadata,
+												           GdkPixbuf *source);
+
 
 
 G_DEFINE_TYPE (MetadataWidget, metadata_widget, GTK_TYPE_MENU_ITEM);
@@ -99,11 +103,12 @@ metadata_widget_init (MetadataWidget *self)
 	// image
 	priv->album_art = gtk_image_new();
 	priv->image_path = g_string_new(dbusmenu_menuitem_property_get(twin_item, DBUSMENU_METADATA_MENUITEM_ARTURL));
-
+	priv->old_image_path = g_string_new("");
 	g_debug("Metadata::At startup and image path = %s", priv->image_path->str);
 	
-	metadata_widget_update_album_art(self);	
-  g_signal_connect(priv->album_art, "expose-event", G_CALLBACK(metadata_image_expose), GTK_WIDGET(self));		
+  g_signal_connect(priv->album_art, "expose-event", 
+                   G_CALLBACK(metadata_image_expose),
+                   GTK_WIDGET(self));		
 	gtk_widget_set_size_request(GTK_WIDGET(priv->album_art), 60, 60); 
 	
 	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->album_art, FALSE, FALSE, 0);	
@@ -181,9 +186,22 @@ metadata_image_expose (GtkWidget *metadata, GdkEventExpose *event, gpointer user
 	g_return_val_if_fail(IS_METADATA_WIDGET(user_data), FALSE);
 	MetadataWidget* widget = METADATA_WIDGET(user_data);
 	MetadataWidgetPrivate * priv = METADATA_WIDGET_GET_PRIVATE(widget);	
-
+	
 	if(priv->image_path->len > 0){
-			return FALSE;	
+		
+	  if(g_string_equal(priv->image_path, priv->old_image_path) == FALSE){
+			GdkPixbuf* pixbuf;
+			pixbuf = gdk_pixbuf_new_from_file(priv->image_path->str, NULL);
+			g_debug("metadata_widget_expose, album art update -> pixbuf from %s",
+						  priv->image_path->str); 
+			pixbuf = gdk_pixbuf_scale_simple(pixbuf,60, 60, GDK_INTERP_BILINEAR);
+			image_set_from_pixbuf (metadata, widget, pixbuf);
+			g_string_erase(priv->old_image_path, 0, -1);
+			g_string_overwrite(priv->old_image_path, 0, priv->image_path->str); 
+
+			g_object_unref(pixbuf);			
+		}
+		return FALSE;				
 	}
 	
 	cairo_t *cr;	
@@ -297,20 +315,151 @@ metadata_widget_property_update(DbusmenuMenuitem* item, gchar* property,
 	else if(g_ascii_strcasecmp(DBUSMENU_METADATA_MENUITEM_ARTURL, property) == 0){
 		g_string_erase(priv->image_path, 0, -1);
 		g_string_overwrite(priv->image_path, 0, g_value_get_string (value)); 
-		metadata_widget_update_album_art(mitem);			
 	}		
 }
 
+
+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
-metadata_widget_update_album_art(MetadataWidget* self){
-	MetadataWidgetPrivate * priv = METADATA_WIDGET_GET_PRIVATE(self);	
-	GdkPixbuf* pixbuf;
-	pixbuf = gdk_pixbuf_new_from_file(priv->image_path->str, NULL);
-	g_debug("metadata_widget_update_album_art -> pixbuf from %s",
-	        priv->image_path->str); 
-  pixbuf = gdk_pixbuf_scale_simple(pixbuf,60, 60, GDK_INTERP_BILINEAR);
-	gtk_image_set_from_pixbuf(GTK_IMAGE(priv->album_art), pixbuf);
-	g_object_unref(pixbuf);	
+image_set_from_pixbuf (GtkWidget  *widget,
+                       MetadataWidget* metadata,
+                       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;
+	
+	MetadataWidgetPrivate* priv = METADATA_WIDGET_GET_PRIVATE(metadata);	
+	GtkImage* image = GTK_IMAGE(priv->album_art);
+  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 (widget), w, h, -1);
+  bitmask = gdk_pixmap_new (gtk_widget_get_window (widget), w, h, 1);
+
+	if (gtk_widget_get_window (widget) == 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);
 }
 
 // TODO refactor next 3 methods into one once the style has been