Re: [Qemu-devel] [PATCH 21/23] gtk: custom cursor support

[Anthony Liguori <aliguori@us.ibm.com>]

Gerd Hoffmann <kraxel@redhat.com> writes:

> Makes gtk ui play nicely with qxl (and vmware_svga)
> as you can actually see your pointer now ;)
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  ui/gtk.c |   25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>
> diff --git a/ui/gtk.c b/ui/gtk.c
> index 7599ff4..512e974 100644
> --- a/ui/gtk.c
> +++ b/ui/gtk.c
> @@ -303,6 +303,29 @@ static void gd_refresh(DisplayChangeListener *dcl)
>      graphic_hw_update(dcl->con);
>  }
>  
> +static void gd_mouse_set(DisplayChangeListener *dcl,
> +                         int x, int y, int visible)
> +{
> +    /* should warp pointer to x, y here */

This is just a matter of doing:

    gdk_window_get_root_coords(window, x, y, &x_root, &y_root);
    gdk_display_warp_pointer(display, screen, x_root, y_root);

> +}
> +
> +static void gd_cursor_define(DisplayChangeListener *dcl,
> +                             QEMUCursor *c)
> +{
> +    GtkDisplayState *s = container_of(dcl, GtkDisplayState, dcl);
> +    GdkPixbuf *pixbuf;
> +    GdkCursor *cursor;
> +
> +    pixbuf = gdk_pixbuf_new_from_data((guchar *)(c->data),
> +                                      GDK_COLORSPACE_RGB, true, 8,
> +                                      c->width, c->height, c->width * 4,
> +                                      NULL, NULL);
> +    cursor = gdk_cursor_new_from_pixbuf(gdk_display_get_default(),

You should get the display from the drawing_area widget.

> +                                        pixbuf, c->hot_x, c->hot_y);
> +    gdk_window_set_cursor(s->drawing_area->window, cursor);
> +    g_object_unref(pixbuf);

You should also dereference the cursor here.

Regards,

Anthony Liguori