r1781 - in trunk/src/target/OM-2007/openmoko-libs: . libmokoui
rob at sita.openmoko.org
rob at sita.openmoko.org
Mon Apr 16 17:32:42 CEST 2007
Author: rob
Date: 2007-04-16 17:32:41 +0200 (Mon, 16 Apr 2007)
New Revision: 1781
Modified:
trunk/src/target/OM-2007/openmoko-libs/ChangeLog
trunk/src/target/OM-2007/openmoko-libs/libmokoui/moko-message-dialog.c
Log:
2007-04-16 Rob Bradford <rob at openedhand.com>
* libmokoui/moko-message-dialog.c: (moko_message_dialog_map),
(moko_message_dialog_class_init), (moko_message_dialog_realize_cb),
(moko_message_dialog_expose_event_cb), (moko_message_dialog_init):
Add support for pseudo-transparent blending of the dialog box's
background.
Modified: trunk/src/target/OM-2007/openmoko-libs/ChangeLog
===================================================================
--- trunk/src/target/OM-2007/openmoko-libs/ChangeLog 2007-04-16 13:21:20 UTC (rev 1780)
+++ trunk/src/target/OM-2007/openmoko-libs/ChangeLog 2007-04-16 15:32:41 UTC (rev 1781)
@@ -1,3 +1,11 @@
+2007-04-16 Rob Bradford <rob at openedhand.com>
+
+ * libmokoui/moko-message-dialog.c: (moko_message_dialog_map),
+ (moko_message_dialog_class_init), (moko_message_dialog_realize_cb),
+ (moko_message_dialog_expose_event_cb), (moko_message_dialog_init):
+ Add support for pseudo-transparent blending of the dialog box's
+ background.
+
2007-04-13 Dodji Seketeli <dodji at openedhand.com>
* openmoko-libs/libmokojournal/src/moko-journal.c:
Modified: trunk/src/target/OM-2007/openmoko-libs/libmokoui/moko-message-dialog.c
===================================================================
--- trunk/src/target/OM-2007/openmoko-libs/libmokoui/moko-message-dialog.c 2007-04-16 13:21:20 UTC (rev 1780)
+++ trunk/src/target/OM-2007/openmoko-libs/libmokoui/moko-message-dialog.c 2007-04-16 15:32:41 UTC (rev 1781)
@@ -1,4 +1,4 @@
-/* moko-dialog.c
+/* moko-message-dialog.c
*
* Authored (in part) by Rob Bradford <rob at openedhand.com>
*
@@ -61,6 +61,9 @@
GtkWidget *image;
GtkWidget *image_alignment;
gboolean window_shaped;
+ GdkPixbuf *background_pixbuf;
+ GdkPixbuf *root_pixbuf;
+ GdkPixbuf *pixbuf;
};
static void
@@ -96,10 +99,46 @@
G_OBJECT_CLASS (moko_message_dialog_parent_class)->finalize (object);
}
+/*
+ * We need to override the map event handling to grab the root window before
+ * our widget gets drawn onto it.
+ */
static void
+moko_message_dialog_map (GObject *object)
+{
+ MokoMessageDialogPrivate *priv = MESSAGE_DIALOG_PRIVATE (object);
+ MokoMessageDialog *dialog = MOKO_MESSAGE_DIALOG (object);
+
+ gint w, h;
+ GdkWindow *root_window;
+ GdkPixbuf *root_pixbuf;
+
+ GdkPixbuf *old_pixbuf;
+
+ /* Grab the root window and its dimensions */
+ root_window = gtk_widget_get_root_window (GTK_WIDGET(dialog));
+ gdk_drawable_get_size (root_window, &w, &h);
+
+ /* Generate a pixbuf from this root window */
+ root_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, w, h);
+ gdk_pixbuf_get_from_drawable (root_pixbuf, root_window, NULL, 0, 0, 0, 0, w, h);
+
+ old_pixbuf = priv->root_pixbuf;
+ priv->root_pixbuf = root_pixbuf;
+ g_object_unref (old_pixbuf);
+
+ g_object_unref (priv->pixbuf);
+ priv->pixbuf = NULL;
+
+ if (GTK_WIDGET_CLASS (moko_message_dialog_parent_class)->map)
+ GTK_WIDGET_CLASS (moko_message_dialog_parent_class)->map (object);
+}
+
+static void
moko_message_dialog_class_init (MokoMessageDialogClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
g_type_class_add_private (klass, sizeof (MokoMessageDialogPrivate));
@@ -107,8 +146,11 @@
object_class->set_property = moko_message_dialog_set_property;
object_class->dispose = moko_message_dialog_dispose;
object_class->finalize = moko_message_dialog_finalize;
+
+ widget_class->map = moko_message_dialog_map;
}
+/*
static void
moko_message_dialog_shape_window (GtkWidget *widget)
{
@@ -141,17 +183,73 @@
priv->window_shaped = TRUE;
}
+*/
+/*
+ * Need to grab the pixbuf for background in the realize callback since we
+ * need to have the style setup
+ */
static void
moko_message_dialog_realize_cb (GtkWidget *widget, gpointer user_data)
{
MokoMessageDialogPrivate* priv = MESSAGE_DIALOG_PRIVATE (widget);
- if (!priv->window_shaped)
- moko_message_dialog_shape_window (widget);
+ GtkRcStyle *rc_style;
+ GError *error = NULL;
+ if (!priv->background_pixbuf)
+ {
+ rc_style = widget->style->rc_style;
+
+ priv->background_pixbuf = gdk_pixbuf_new_from_file (rc_style->bg_pixmap_name[GTK_STATE_NORMAL], &error);
+
+ if (priv->background_pixbuf == NULL)
+ {
+ g_warning ("Error loading background pixbuf: %s", error->message);
+ g_clear_error (&error);
+ return;
+ }
+ }
}
+static gboolean
+moko_message_dialog_expose_event_cb (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
+{
+ MokoMessageDialogPrivate *priv = MESSAGE_DIALOG_PRIVATE (widget);
+ int x, y, w, h;
+
+ gdk_drawable_get_size (widget->window, &w, &h);
+
+ if (!priv->pixbuf)
+ {
+ gdk_window_get_origin (widget->window, &x, &y);
+
+ /*
+ * Extract a sub pixbuf for the area of the root window which the window
+ * now covers
+ */
+ priv->pixbuf = gdk_pixbuf_new_subpixbuf (priv->root_pixbuf, x, y, w, h);
+
+ /* Composite the background pixbuf over said subpixbuf */
+ gdk_pixbuf_composite (priv->background_pixbuf, priv->pixbuf,
+ 0, 0,
+ w, h,
+ 0, 0,
+ 1, 1,
+ GDK_INTERP_BILINEAR,
+ 255);
+ }
+
+ /* Draw our pixbuf onto the window */
+ gdk_draw_pixbuf (widget->window, NULL, priv->pixbuf,
+ 0, 0,
+ 0, 0,
+ w, h,
+ GDK_RGB_DITHER_NONE, 0, 0);
+
+ return FALSE;
+}
+
static void
moko_message_dialog_init (MokoMessageDialog *self)
{
@@ -190,14 +288,23 @@
gtk_dialog_set_has_separator (GTK_DIALOG (self), FALSE);
- gtk_widget_set_size_request (GTK_WIDGET (self), 320, 480);
+ gtk_widget_set_size_request (GTK_WIDGET (self), 480, 560);
gtk_window_set_decorated (GTK_WINDOW (self), FALSE);
gtk_window_set_resizable (GTK_WINDOW (self), FALSE);
+
+ /* Indicate that we want to paint this ourselves */
+ gtk_widget_set_app_paintable (self, TRUE);
+
g_signal_connect (self, "realize", G_CALLBACK (moko_message_dialog_realize_cb), NULL);
+ g_signal_connect (self, "expose-event", G_CALLBACK (moko_message_dialog_expose_event_cb), NULL);
priv->image_alignment = image_alignment;
priv->label = label;
+
+ priv->root_pixbuf = NULL;
+ priv->background_pixbuf = NULL;
+ priv->pixbuf = NULL;
}
void
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