[gthumb] [GthImportDestinationButton] use the default color when insensitive

[Paolo Bacchilega <paobac src gnome org>]

commit 5b4f3f8f6de140988634c67f7f366f0f2036b574
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Fri Aug 6 12:45:36 2010 +0200

    [GthImportDestinationButton] use the default color when insensitive

 .../importer/gth-import-destination-button.c       |   83 ++++++++++++++++----
 1 files changed, 66 insertions(+), 17 deletions(-)
---
diff --git a/extensions/importer/gth-import-destination-button.c b/extensions/importer/gth-import-destination-button.c
index 433e29d..e426655 100644
--- a/extensions/importer/gth-import-destination-button.c
+++ b/extensions/importer/gth-import-destination-button.c
@@ -36,36 +36,86 @@ struct _GthImportDestinationButtonPrivate {
 
 
 static void
-gth_import_destination_button_finalize (GObject *object)
+_update_subfolder_label_color (GthImportDestinationButton *self)
 {
-	GthImportDestinationButton *self;
+	if (! gtk_widget_get_realized (GTK_WIDGET (self)))
+		return;
+
+	if ((gtk_widget_get_state (self->priv->subfolder_label) & GTK_STATE_INSENSITIVE) == GTK_STATE_INSENSITIVE) {
+		gtk_label_set_attributes (GTK_LABEL (self->priv->subfolder_label), NULL);
+		gtk_widget_queue_resize (self->priv->subfolder_label);
+	}
+	else {
+		PangoAttrList  *attr_list;
+		PangoAttribute *attr;
+
+		attr_list = pango_attr_list_new ();
+		attr = pango_attr_foreground_new (45489, 13107, 1799);
+		pango_attr_list_insert (attr_list, attr);
+		gtk_label_set_attributes (GTK_LABEL (self->priv->subfolder_label), attr_list);
+		pango_attr_list_unref (attr_list);
+
+		/* FIXME: the color is NULL for some themes.
+		GdkColor *color;
+
+		color = NULL;
+		gtk_widget_style_get (GTK_WIDGET (self), "link-color", &color, NULL);
+		if (color != NULL) {
+			PangoAttrList  *attr_list;
+			PangoAttribute *attr;
+
+			g_print ("(%" G_GUINT16_FORMAT ", %" G_GUINT16_FORMAT ", %" G_GUINT16_FORMAT ")\n", color->red, color->green, color->blue);
+
+			attr_list = pango_attr_list_new ();
+			attr = pango_attr_foreground_new (color->red, color->green, color->blue);
+			pango_attr_list_insert (attr_list, attr);
+			gtk_label_set_attributes (GTK_LABEL (self->priv->subfolder_label), attr_list);
+			pango_attr_list_unref (attr_list);
+
+			gdk_color_free (color);
+		}
+		else
+			g_print ("no color\n");
+		*/
+	}
+}
 
-	self = GTH_IMPORT_DESTINATION_BUTTON (object);
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+static void
+gth_import_destination_button_realize (GtkWidget *widget)
+{
+	GTK_WIDGET_CLASS (parent_class)->realize (widget);
+	_update_subfolder_label_color (GTH_IMPORT_DESTINATION_BUTTON (widget));
 }
 
 
 static void
 gth_import_destination_button_class_init (GthImportDestinationButtonClass *klass)
 {
-	GObjectClass *object_class;
+	GtkWidgetClass *widget_class;
 
 	parent_class = g_type_class_peek_parent (klass);
 	g_type_class_add_private (klass, sizeof (GthImportDestinationButtonPrivate));
 
-	object_class = (GObjectClass*) klass;
-	object_class->finalize = gth_import_destination_button_finalize;
+	widget_class = (GtkWidgetClass*) klass;
+	widget_class->realize = gth_import_destination_button_realize;
+}
+
+
+static void
+subfolder_label_state_changed_cb (GtkWidget   *widget,
+				  GtkStateType state,
+				  gpointer     user_data)
+{
+	_update_subfolder_label_color (GTH_IMPORT_DESTINATION_BUTTON (user_data));
 }
 
 
 static void
 gth_import_destination_button_init (GthImportDestinationButton *self)
 {
-	GtkWidget      *box;
-	GtkWidget      *label_box;
-	PangoAttrList  *attr_list;
-	PangoAttribute *attr;
+	GtkWidget *box;
+	GtkWidget *label_box;
 
 	self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GTH_TYPE_IMPORT_DESTINATION_BUTTON, GthImportDestinationButtonPrivate);
 
@@ -89,14 +139,13 @@ gth_import_destination_button_init (GthImportDestinationButton *self)
 	gtk_label_set_ellipsize (GTK_LABEL (self->priv->subfolder_label), PANGO_ELLIPSIZE_END);
 	gtk_misc_set_alignment (GTK_MISC (self->priv->subfolder_label), 0.0, 0.5);
 
-	attr_list = pango_attr_list_new ();
-	attr = pango_attr_foreground_new (45489, 13107, 1799);
-	pango_attr_list_insert (attr_list, attr);
-	g_object_set (self->priv->subfolder_label, "attributes", attr_list, NULL);
-	pango_attr_list_unref (attr_list);
-
 	gtk_widget_show (self->priv->subfolder_label);
 	gtk_box_pack_start (GTK_BOX (label_box), self->priv->subfolder_label, TRUE, TRUE, 0);
+
+	g_signal_connect (self->priv->subfolder_label,
+			  "state-changed",
+			  G_CALLBACK (subfolder_label_state_changed_cb),
+			  self);
 }