/**
* gdk_event_put:
* @event: a #GdkEvent.
*
* Appends a copy of the given event onto the front of the event
* queue for event->any.window's display, or the default event
* queue if event->any.window is %NULL. See gdk_display_put_event().
**/
void
gdk_event_put (const GdkEvent *event)
{
GdkDisplay *display;
g_return_if_fail (event != NULL);
if (event->any.window)
display = gdk_drawable_get_display (event->any.window);
else
{
GDK_NOTE (MULTIHEAD,
g_message ("Falling back to default display for gdk_event_put()"));
display = gdk_display_get_default ();
}
gdk_display_put_event (display, event);
}
CaptureEvents::~CaptureEvents()
{
gdk_event_handler_set((GdkEventFunc)gtk_main_do_event, NULL, NULL);
// put all unprocessed GDK events back in the queue
GdkDisplay* disp = gtk_widget_get_display(wxGetRootWindow());
size_t cnt = queue.GetCount();
for (size_t i = 0; i < cnt; i++) {
GdkEvent* event = (GdkEvent*)queue[i];
// NOTE: gdk_display_put_event makes a copy of the event passed to it
gdk_display_put_event(disp, event);
gdk_event_free(event);
}
#if wxUSE_LOG
// let the logs be flashed again
wxLog::Resume();
#endif
}
bool wxGUIEventLoop::YieldFor(long eventsToProcess)
{
#if wxUSE_THREADS
if ( !wxThread::IsMain() )
{
// can't call gtk_main_iteration() from other threads like this
return true;
}
#endif // wxUSE_THREADS
m_isInsideYield = true;
m_eventsToProcessInsideYield = eventsToProcess;
#if wxUSE_LOG
// disable log flushing from here because a call to wxYield() shouldn't
// normally result in message boxes popping up &c
wxLog::Suspend();
#endif
// temporarily replace the global GDK event handler with our function, which
// categorizes the events and using m_eventsToProcessInsideYield decides
// if an event should be processed immediately or not
// NOTE: this approach is better than using gdk_display_get_event() because
// gtk_main_iteration() does more than just calling gdk_display_get_event()
// and then call gtk_main_do_event()!
// In particular in this way we also process input from sources like
// GIOChannels (this is needed for e.g. wxGUIAppTraits::WaitForChild).
gdk_event_handler_set ((GdkEventFunc)wxgtk_main_do_event, this, NULL);
while (Pending()) // avoid false positives from our idle source
gtk_main_iteration();
gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
if (eventsToProcess != wxEVT_CATEGORY_CLIPBOARD)
{
// It's necessary to call ProcessIdle() to update the frames sizes which
// might have been changed (it also will update other things set from
// OnUpdateUI() which is a nice (and desired) side effect). But we
// call ProcessIdle() only once since this is not meant for longish
// background jobs (controlled by wxIdleEvent::RequestMore() and the
// return value of Processidle().
ProcessIdle(); // ProcessIdle() also calls ProcessPendingEvents()
}
//else: if we are inside ~wxClipboardSync() and we call ProcessIdle() and
// the user app contains an UI update handler which calls wxClipboard::IsSupported,
// then we fall into a never-ending loop...
// put all unprocessed GDK events back in the queue
GdkDisplay* disp = gtk_widget_get_display(wxGetRootWindow());
for (size_t i=0; i<m_arrGdkEvents.GetCount(); i++)
{
GdkEvent* ev = (GdkEvent*)m_arrGdkEvents[i];
// NOTE: gdk_display_put_event makes a copy of the event passed to it
gdk_display_put_event(disp, ev);
gdk_event_free(ev);
}
m_arrGdkEvents.Clear();
#if wxUSE_LOG
// let the logs be flashed again
wxLog::Resume();
#endif
m_isInsideYield = false;
return true;
}
static VALUE
rg_put_event(VALUE self, VALUE event)
{
gdk_display_put_event(_SELF(self), RVAL2GEV(event));
return self;
}
