void waitForEvent(int type) {
XEvent event;
do {
XWindowEvent(display, window, StructureNotifyMask, &event);
describeEvent(event);
} while (event.type != type);
}
bool
processEvents(void) {
while (XPending(display) > 0) {
XEvent event;
XNextEvent(display, &event);
describeEvent(event);
}
return true;
}
static void waitForEvent(Window window, int type) {
XFlush(display);
XEvent event;
do {
XNextEvent(display, &event);
describeEvent(event);
} while (event.type != type ||
event.xany.window != window);
}
static void
processEvent(XEvent &event) {
describeEvent(event);
switch (event.type) {
case KeyPress:
{
char buffer[32];
KeySym keysym;
XLookupString(&event.xkey, buffer, sizeof buffer - 1, &keysym, NULL);
if (keysym == XK_Escape) {
exit(0);
}
}
break;
}
}
// ######################################################################
void XWinManaged::eventHandler(XEvent* event)
{
if (itsTraceEvents.atomic_get() > 0 || MYLOGVERB >= LOG_DEBUG)
LINFO("%s in window '%s'...",
describeEvent(event).c_str(), this->getTitle());
switch(event->type)
{
case ClientMessage:
{
if (event->xclient.data.l[0] == (int)deleteAtom)
{
// user wants to close window - set the flag
toBeClosed = true;
}
}
break;
case Expose:
{
while (this->checkMaskEvent(ExposureMask, event))
{ /* empty loop body */ }
this->redrawImage();
}
break;
case KeyPress:
{
GVX_MUTEX_LOCK(&itsEventsMutex);
itsKeyEvents.push_back(event->xkey);
if (itsKeyEvents.size() > g_max_queue_len)
itsKeyEvents.pop_front();
}
break;
case ButtonPress:
{
GVX_MUTEX_LOCK(&itsEventsMutex);
mousePressed = true;
itsButtonEvents.push_back(event->xbutton);
if (itsButtonEvents.size() > g_max_queue_len)
itsButtonEvents.pop_front();
itsButtonPressedEvents.push_back(event->xbutton);
if (itsButtonPressedEvents.size() > g_max_queue_len)
itsButtonPressedEvents.pop_front();
}
break;
case ButtonRelease:
{
GVX_MUTEX_LOCK(&itsEventsMutex);
mousePressed = false;
itsButtonEvents.push_back(event->xbutton);
if (itsButtonEvents.size() > g_max_queue_len)
itsButtonEvents.pop_front();
itsButtonReleasedEvents.push_back(event->xbutton);
if (itsButtonReleasedEvents.size() > g_max_queue_len)
itsButtonReleasedEvents.pop_front();
}
break;
case MotionNotify:
{
GVX_MUTEX_LOCK(&itsEventsMutex);
itsButtonEvents.push_back(event->xbutton);
if (itsButtonEvents.size() > g_max_queue_len)
itsButtonEvents.pop_front();
itsButtonMotionEvents.push_back(event->xbutton);
if (itsButtonMotionEvents.size() > g_max_queue_len)
itsButtonMotionEvents.pop_front();
}
break;
}
}