/**
* gdk_cursor_get_image:
* @cursor: a #GdkCursor
*
* Returns a #GdkPixbuf with the image used to display the cursor.
*
* Note that depending on the capabilities of the windowing system and
* on the cursor, GDK may not be able to obtain the image data. In this
* case, %NULL is returned.
*
* Returns: (transfer full): a #GdkPixbuf representing @cursor, or %NULL
*
* Since: 2.8
*/
GdkPixbuf*
gdk_cursor_get_image (GdkCursor *cursor)
{
int w, h;
cairo_surface_t *surface;
GdkPixbuf *pixbuf;
gchar buf[32];
double x_hot, y_hot;
double x_scale, y_scale;
g_return_val_if_fail (GDK_IS_CURSOR (cursor), NULL);
surface = gdk_cursor_get_surface (cursor, &x_hot, &y_hot);
if (surface == NULL)
return NULL;
w = cairo_image_surface_get_width (surface);
h = cairo_image_surface_get_height (surface);
x_scale = y_scale = 1;
#ifdef HAVE_CAIRO_SURFACE_SET_DEVICE_SCALE
cairo_surface_get_device_scale (surface, &x_scale, &y_scale);
#endif
pixbuf = gdk_pixbuf_get_from_surface (surface, 0, 0, w, h);
cairo_surface_destroy (surface);
if (x_scale != 1)
{
GdkPixbuf *old;
old = pixbuf;
pixbuf = gdk_pixbuf_scale_simple (old,
w / x_scale, h / y_scale,
GDK_INTERP_HYPER);
g_object_unref (old);
}
g_snprintf (buf, 32, "%d", (int)x_hot);
gdk_pixbuf_set_option (pixbuf, "x_hot", buf);
g_snprintf (buf, 32, "%d", (int)y_hot);
gdk_pixbuf_set_option (pixbuf, "y_hot", buf);
return pixbuf;
}
cairo_surface_t *
gitg_platform_support_create_cursor_surface (GdkDisplay *display,
GdkCursorType cursor_type,
gdouble *hot_x,
gdouble *hot_y,
gdouble *width,
gdouble *height)
{
GdkCursor *cursor;
cairo_surface_t *surface;
gdouble w = 0, h = 0;
cursor = gdk_cursor_new_for_display (display, cursor_type);
surface = gdk_cursor_get_surface (cursor, hot_x, hot_y);
if (surface == NULL)
{
return NULL;
}
switch (cairo_surface_get_type (surface))
{
case CAIRO_SURFACE_TYPE_XLIB:
w = cairo_xlib_surface_get_width (surface);
h = cairo_xlib_surface_get_height (surface);
break;
case CAIRO_SURFACE_TYPE_IMAGE:
w = cairo_image_surface_get_width (surface);
h = cairo_image_surface_get_height (surface);
break;
}
if (width)
{
*width = w;
}
if (height)
{
*height = h;
}
return surface;
}