static void
queue_redraw_for_overlay (MetaStage *stage,
MetaOverlay *overlay)
{
cairo_rectangle_int_t clip;
/* Clear the location the overlay was at before, if we need to. */
if (overlay->previous_is_valid)
{
clip.x = overlay->previous_rect.x;
clip.y = overlay->previous_rect.y;
clip.width = overlay->previous_rect.width;
clip.height = overlay->previous_rect.height;
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), &clip);
overlay->previous_is_valid = FALSE;
}
/* Draw the overlay at the new position */
if (overlay->enabled)
{
clip.x = overlay->current_rect.x;
clip.y = overlay->current_rect.y;
clip.width = overlay->current_rect.width;
clip.height = overlay->current_rect.height;
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), &clip);
}
}
static ClutterTranslateReturn
clutter_stage_x11_translate_event (ClutterEventTranslator *translator,
gpointer native,
ClutterEvent *event)
{
ClutterStageX11 *stage_x11;
ClutterStageCogl *stage_cogl;
ClutterTranslateReturn res = CLUTTER_TRANSLATE_CONTINUE;
ClutterBackendX11 *backend_x11;
Window stage_xwindow;
XEvent *xevent = native;
ClutterStage *stage;
stage_cogl = clutter_x11_get_stage_window_from_window (xevent->xany.window);
if (stage_cogl == NULL)
return CLUTTER_TRANSLATE_CONTINUE;
stage = stage_cogl->wrapper;
stage_x11 = CLUTTER_STAGE_X11 (stage_cogl);
backend_x11 = CLUTTER_BACKEND_X11 (stage_cogl->backend);
stage_xwindow = stage_x11->xwin;
switch (xevent->type)
{
case ConfigureNotify:
if (!stage_x11->is_foreign_xwin)
{
gboolean size_changed = FALSE;
CLUTTER_NOTE (BACKEND, "ConfigureNotify[%x] (%d, %d)",
(unsigned int) stage_x11->xwin,
xevent->xconfigure.width,
xevent->xconfigure.height);
/* When fullscreen, we'll keep the xwin_width/height
variables to track the old size of the window and we'll
assume all ConfigureNotifies constitute a size change */
if (_clutter_stage_is_fullscreen (stage))
size_changed = TRUE;
else if ((stage_x11->xwin_width != xevent->xconfigure.width) ||
(stage_x11->xwin_height != xevent->xconfigure.height))
{
size_changed = TRUE;
stage_x11->xwin_width = xevent->xconfigure.width;
stage_x11->xwin_height = xevent->xconfigure.height;
}
clutter_actor_set_size (CLUTTER_ACTOR (stage),
xevent->xconfigure.width,
xevent->xconfigure.height);
CLUTTER_UNSET_PRIVATE_FLAGS (stage_cogl->wrapper, CLUTTER_IN_RESIZE);
if (size_changed)
{
/* XXX: This is a workaround for a race condition when
* resizing windows while there are in-flight
* glXCopySubBuffer blits happening.
*
* The problem stems from the fact that rectangles for the
* blits are described relative to the bottom left of the
* window and because we can't guarantee control over the X
* window gravity used when resizing so the gravity is
* typically NorthWest not SouthWest.
*
* This means if you grow a window vertically the server
* will make sure to place the old contents of the window
* at the top-left/north-west of your new larger window, but
* that may happen asynchronous to GLX preparing to do a
* blit specified relative to the bottom-left/south-west of
* the window (based on the old smaller window geometry).
*
* When the GLX issued blit finally happens relative to the
* new bottom of your window, the destination will have
* shifted relative to the top-left where all the pixels you
* care about are so it will result in a nasty artefact
* making resizing look very ugly!
*
* We can't currently fix this completely, in-part because
* the window manager tends to trample any gravity we might
* set. This workaround instead simply disables blits for a
* while if we are notified of any resizes happening so if
* the user is resizing a window via the window manager then
* they may see an artefact for one frame but then we will
* fallback to redrawing the full stage until the cooling
* off period is over.
*/
if (stage_x11->clipped_redraws_cool_off)
g_source_remove (stage_x11->clipped_redraws_cool_off);
stage_x11->clipped_redraws_cool_off =
clutter_threads_add_timeout (1000,
clipped_redraws_cool_off_cb,
stage_x11);
/* Queue a relayout - we want glViewport to be called
* with the correct values, and this is done in ClutterStage
* via cogl_onscreen_clutter_backend_set_size ().
*
* We queue a relayout, because if this ConfigureNotify is
* in response to a size we set in the application, the
* set_size() call above is essentially a null-op.
*
* Make sure we do this only when the size has changed,
* otherwise we end up relayouting on window moves.
*/
clutter_actor_queue_relayout (CLUTTER_ACTOR (stage));
/* the resize process is complete, so we can ask the stage
* to set up the GL viewport with the new size
*/
clutter_stage_ensure_viewport (stage);
}
}
break;
case PropertyNotify:
if (xevent->xproperty.atom == backend_x11->atom_NET_WM_STATE &&
xevent->xproperty.window == stage_xwindow &&
!stage_x11->is_foreign_xwin)
{
Atom type;
gint format;
gulong n_items, bytes_after;
guchar *data = NULL;
gboolean fullscreen_set = FALSE;
clutter_x11_trap_x_errors ();
XGetWindowProperty (backend_x11->xdpy, stage_xwindow,
backend_x11->atom_NET_WM_STATE,
0, G_MAXLONG,
False, XA_ATOM,
&type, &format, &n_items,
&bytes_after, &data);
clutter_x11_untrap_x_errors ();
if (type != None && data != NULL)
{
gboolean is_fullscreen = FALSE;
Atom *atoms = (Atom *) data;
gulong i;
for (i = 0; i < n_items; i++)
{
if (atoms[i] == backend_x11->atom_NET_WM_STATE_FULLSCREEN)
fullscreen_set = TRUE;
}
is_fullscreen = _clutter_stage_is_fullscreen (stage_cogl->wrapper);
if (fullscreen_set != is_fullscreen)
{
if (fullscreen_set)
_clutter_stage_update_state (stage_cogl->wrapper,
0,
CLUTTER_STAGE_STATE_FULLSCREEN);
else
_clutter_stage_update_state (stage_cogl->wrapper,
CLUTTER_STAGE_STATE_FULLSCREEN,
0);
}
XFree (data);
}
}
break;
case FocusIn:
if (!_clutter_stage_is_activated (stage_cogl->wrapper))
{
_clutter_stage_update_state (stage_cogl->wrapper,
0,
CLUTTER_STAGE_STATE_ACTIVATED);
}
break;
case FocusOut:
if (_clutter_stage_is_activated (stage_cogl->wrapper))
{
_clutter_stage_update_state (stage_cogl->wrapper,
CLUTTER_STAGE_STATE_ACTIVATED,
0);
}
break;
case EnterNotify:
#if HAVE_XFIXES
if (!stage_x11->is_cursor_visible && !stage_x11->cursor_hidden_xfixes)
{
XFixesHideCursor (backend_x11->xdpy, stage_x11->xwin);
stage_x11->cursor_hidden_xfixes = TRUE;
}
#endif
break;
case LeaveNotify:
#if HAVE_XFIXES
if (stage_x11->cursor_hidden_xfixes)
{
XFixesShowCursor (backend_x11->xdpy, stage_x11->xwin);
stage_x11->cursor_hidden_xfixes = FALSE;
}
#endif
break;
case Expose:
{
XExposeEvent *expose = (XExposeEvent *) xevent;
cairo_rectangle_int_t clip;
CLUTTER_NOTE (EVENT,
"expose for stage: %s[%p], win:0x%x - "
"redrawing area (x: %d, y: %d, width: %d, height: %d)",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow,
expose->x,
expose->y,
expose->width,
expose->height);
clip.x = expose->x;
clip.y = expose->y;
clip.width = expose->width;
clip.height = expose->height;
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), &clip);
}
break;
case DestroyNotify:
CLUTTER_NOTE (EVENT,
"Destroy notification received for stage %s[%p], win:0x%x",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow);
event->any.type = CLUTTER_DESTROY_NOTIFY;
event->any.stage = stage;
res = CLUTTER_TRANSLATE_QUEUE;
break;
case ClientMessage:
CLUTTER_NOTE (EVENT, "Client message for stage %s[%p], win:0x%x",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow);
if (handle_wm_protocols_event (backend_x11, stage_x11, xevent))
{
event->any.type = CLUTTER_DELETE;
event->any.stage = stage;
res = CLUTTER_TRANSLATE_QUEUE;
}
break;
case MappingNotify:
CLUTTER_NOTE (EVENT, "Refresh keyboard mapping");
XRefreshKeyboardMapping (&xevent->xmapping);
backend_x11->keymap_serial += 1;
res = CLUTTER_TRANSLATE_REMOVE;
break;
default:
res = CLUTTER_TRANSLATE_CONTINUE;
break;
}
return res;
}
