Hi Dhananjay,
Text rendering on examples/apps will need "fonts" to be installed properly
on your system. This is one thing you can check if your gtk+ example still
not drawing text on buttons, etc.
-Arun
On Tue, Jan 6, 2009 at 10:48 PM, Dhananjoy Chutia <dha...@gmail.com> wrote:
>
> Hi,
>
> Thanks a lot for your valuable suggestion. I followed your instructions
> and added the suggested lines. I had done minor modification to overcome
> failure for multiple definition & warning due to one assertion failure.
>
> I tried gtk-demo, but only background was drawn, no widget were visible.
> After that, I compiled the gtk+ example, helloworld & executed. I observed
> that background is drawn. But, no text is displayed for the button label. I
> also tried to change button/label color by changing the gtkrc, that had also
> no effect.
>
> Now, can anyone suggest me a wawy to overcome this situation?
>
> My packages are
>
> glib-2.18.3 configured with --build=i386-linux --disable-gtk-doc
> --disable-man --enable-debug
> cairo-1.8.6 configured with --enable-directfb --disable-xlib
> --disable-win32
> pixman-0.13.2
> pango-1.22.3 configured with --without-x
>
> Here is the change:
>
>
> diff -pur directfb_patched/gdkwindow-directfb.c
> directfb_patched_m/gdkwindow-directfb.c
> --- directfb_patched/gdkwindow-directfb.c 2009-01-06 21:26:17.000000000
> +0530
> +++ directfb_patched_m/gdkwindow-directfb.c 2009-01-06
> 22:13:35.000000000 +0530
> @@ -67,6 +67,7 @@ static void gdk_window_impl_direc
> static void gdk_window_impl_directfb_init
> (GdkWindowImplDirectFB *window);
> static void gdk_window_impl_directfb_class_init
> (GdkWindowImplDirectFBClass *klass);
> static void gdk_window_impl_directfb_finalize
> (GObject *object);
> +static void gdk_window_impl_iface_init (GdkWindowImplIface *iface);
>
>
> void gdk_window_directfb_hide (GdkWindow *window);
> @@ -95,6 +96,12 @@ typedef struct
> static GSList *update_windows = NULL;
> static guint update_idle = 0;
>
> +G_DEFINE_TYPE_WITH_CODE (GdkWindowImplDirectFB,
> + gdk_window_impl_directfb,
> + GDK_TYPE_DRAWABLE_IMPL_DIRECTFB,
> + G_IMPLEMENT_INTERFACE (GDK_TYPE_WINDOW_IMPL,
> +
> gdk_window_impl_iface_init));
> +
> static void
> gdk_window_directfb_process_all_updates (void)
> {
> @@ -114,6 +121,7 @@ gdk_window_directfb_process_all_updates
> while (tmp_list)
> {
> GdkWindowObject *private = GDK_WINDOW_OBJECT( tmp_list->data
> );
> + GdkWindowImplDirectFB *wimpl = GDK_WINDOW_IMPL_DIRECTFB(
> private->impl );
>
> if (private->update_freeze_count)
> {
> @@ -206,7 +214,7 @@ gdk_window_impl_directfb_paintable_init
>
>
>
> -
> +#if 0
> GType
> gdk_window_impl_directfb_get_type (void)
> {
> @@ -245,6 +253,7 @@ gdk_window_impl_directfb_get_type (void)
>
> return object_type;
> }
> +#endif
>
> GType
> _gdk_window_impl_get_type (void)
> @@ -420,6 +429,10 @@ _gdk_windowing_window_init (void)
>
> _gdk_parent_root = g_object_new (GDK_TYPE_WINDOW, NULL);
> private = GDK_WINDOW_OBJECT (_gdk_parent_root);
> +
> + private->impl = g_object_new (_gdk_window_impl_get_type (), NULL);
> + printf("DFB:%s:allocating window impl\n",__FUNCTION__);
> +
> impl = GDK_WINDOW_IMPL_DIRECTFB (private->impl);
>
> private->window_type = GDK_WINDOW_ROOT;
> @@ -442,7 +455,7 @@ _gdk_windowing_window_init (void)
> desc.flags = DWDESC_CAPS;
> desc.caps = 0;
> desc.caps |= DWCAPS_NODECORATION;
> - desc.caps |= DWCAPS_ALPHACHANNEL;
> +// desc.caps |= DWCAPS_ALPHACHANNEL;
> desc.flags |= ( DWDESC_WIDTH | DWDESC_HEIGHT |
> DWDESC_POSX | DWDESC_POSY );
> desc.posx = 0;
> @@ -455,6 +468,7 @@ _gdk_windowing_window_init (void)
> }
>
> impl->drawable.surface->GetPixelFormat(impl->drawable.surface,&impl->drawable.format);
>
> private->depth = DFB_BITS_PER_PIXEL(impl->drawable.format);
> + printf("DFB:depth=%d\n",private->depth);
> /*
> Now we can set up the system colormap
> */
> @@ -489,6 +503,8 @@ gdk_directfb_window_new (GdkWindow
>
> window = g_object_new (GDK_TYPE_WINDOW, NULL);
> private = GDK_WINDOW_OBJECT (window);
> + private->impl = g_object_new (_gdk_window_impl_get_type (), NULL);
> + printf("DFB:%s:allocating window impl\n",__FUNCTION__);
>
> parent_private = GDK_WINDOW_OBJECT (parent);
> parent_impl = GDK_WINDOW_IMPL_DIRECTFB (parent_private->impl);
> @@ -2730,6 +2746,10 @@ GdkWindow *gdk_directfb_create_child_win
>
> window = g_object_new (GDK_TYPE_WINDOW, NULL);
> private = GDK_WINDOW_OBJECT (window);
> +
> + private->impl = g_object_new (_gdk_window_impl_get_type (), NULL);
> + printf("DFB:%s:allocating window impl\n",__FUNCTION__);
> +
> parent_private = GDK_WINDOW_OBJECT (parent);
> parent_impl = GDK_WINDOW_IMPL_DIRECTFB (parent_private->impl);
> private->parent = parent_private;
> @@ -2809,6 +2829,10 @@ gdk_window_foreign_new_for_display (GdkD
> /* we hold a reference count on ourselves */
> g_object_ref (window);
> private = GDK_WINDOW_OBJECT (window);
> +
> + private->impl = g_object_new (_gdk_window_impl_get_type (), NULL);
> + printf("DFB:%s:allocating window impl\n",__FUNCTION__);
> +
> private->parent = parent_private;
> private->window_type = GDK_WINDOW_TOPLEVEL;
> impl = GDK_WINDOW_IMPL_DIRECTFB (private->impl);
>
>
>
>
>
> Regards
>
> Dhananjoy
>
>
>
>
>
>
>
>
> On Tue, Jan 6, 2009 at 11:08 AM, Minsu Han <minsu81....@samsung.com>wrote:
>
>>
>> Hi.
>>
>> I also had a same problem. But now I know why this problem is happened.
>>
>> I think the problem is there's no impl(GdkWindowImplDirectFB) object in
>> _gdk_windowing_window_init().
>>
>> So when you refer impl pointer, there's some segmentation fault.
>>
>>
>>
>> In _gdk_windowing_window_init().
>>
>> {
>>
>> ...
>>
>> _gdk_parent_root = g_object_new (GDK_TYPE_WINDOW, NULL);
>>
>> private = GDK_WINDOW_OBJECT (_gdk_parent_root);
>>
>> impl = GDK_WINDOW_IMPL_DIRECTFB (private->impl);
>>
>> impl->gdkWindow = _gdk_parent_root;
>>
>> ...
>>
>> }
>>
>>
>>
>> In my case, I declare GdkWindowImplDirectFB info using
>> G_DEFINE_TYPE_WITH_CODE.
>>
>> And initialize impl data.
>>
>> impl = g_object_new(_gdk_window_impl_get_type(), NULL );
>>
>>
>>
>> Maybe it should be added in _gdk_windowing_window_init(),
>> gdk_directfb_window_new(), gdk_directfb_create_child_window(),
>> gdk_window_foreign_new_for_display().
>>
>> After that, gtk-demo will be worked correctly.
>>
>>
>>
>> BR
>>
>> minsu.han
>>
>>
>>
>
>
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>
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