[webkit-dev] Transparency on GTK/DirectFB
Weber, Bernd
BWEBE at dolby.com
Thu Sep 25 14:37:55 PDT 2008
Thanks Christian, great pointers!
I got it working! Very cool!
-Bernd
For reference, here the changes I did in GtkLauncher:
static void
make_transparent(WebKitWebView* l_web_view)
{
GValue val = {0,};
g_value_init (&val, G_TYPE_BOOLEAN);
g_value_set_boolean (&val, 1);
g_object_set_property (G_OBJECT (l_web_view), "transparent", &val);
}
static void
make_transparent_cb (GtkWidget* widget, gpointer data)
{
make_transparent (web_view);
}
static void
set_colormap(GtkWidget* window)
{
GdkScreen* screen = gtk_widget_get_screen (window);
GdkColormap* colormap = gdk_screen_get_rgba_colormap (screen);
if (!colormap) {
g_warning ("No ARGB colormap available! Using RGB colormap!\n");
colormap = gdk_screen_get_rgb_colormap (screen);
} else {
g_print ("Using ARGB colormap now! :-)\n");
}
gtk_widget_set_colormap (window, colormap);
}
In main.c:
main_window = create_window ();
set_colormap(main_window);
-----Original Message-----
From: webkit-dev-bounces at lists.webkit.org
[mailto:webkit-dev-bounces at lists.webkit.org] On Behalf Of Christian
Dywan
Sent: Wednesday, September 24, 2008 3:48 PM
To: webkit-dev at lists.webkit.org
Subject: Re: [webkit-dev] Transparency on GTK/DirectFB
Am Wed, 24 Sep 2008 15:16:24 -0700
schrieb Darin Adler <darin at apple.com>:
> On Sep 24, 2008, at 3:10 PM, Weber, Bernd wrote:
>
> > The holy grail however would be to achieve transparency to the
> > underlying desktop, by defining "transparent" as the background
> > color.
>
> WebKit definitely supports this. It's used this way in the Mac OS X
> Dashboard.
>
> > I'm not sure whether Webkit, especially with GTK/DirectFB,
> > supports this right now.
>
> I don't know if the GTK/DirectFB port supports it. That's a question
> for someone else.
Take a look at the headers. There's no other documentation at this
point but it should be intuitive enough for most of what we have.
webkit_web_view_set_transparent
You will want that. And make sure you have an ARGB colour map on your
window, ie. when you create your toplevel window.
ciao,
Christian
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