bool WWidget::event(QEvent* e) {
if (e->type() == QEvent::ToolTip) {
updateTooltip();
} else if (isEnabled()) {
switch(e->type()) {
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
{
QTouchEvent* touchEvent = dynamic_cast<QTouchEvent*>(e);
if (touchEvent->deviceType() != QTouchEvent::TouchScreen) {
break;
}
// fake a mouse event!
QEvent::Type eventType = QEvent::None;
switch (touchEvent->type()) {
case QEvent::TouchBegin:
eventType = QEvent::MouseButtonPress;
if (touchIsRightButton()) {
// touch is right click
m_activeTouchButton = Qt::RightButton;
} else {
m_activeTouchButton = Qt::LeftButton;
}
break;
case QEvent::TouchUpdate:
eventType = QEvent::MouseMove;
break;
case QEvent::TouchEnd:
eventType = QEvent::MouseButtonRelease;
break;
default:
DEBUG_ASSERT(false);
break;
}
const QTouchEvent::TouchPoint &touchPoint =
touchEvent->touchPoints().first();
QMouseEvent mouseEvent(eventType,
touchPoint.pos().toPoint(),
touchPoint.screenPos().toPoint(),
m_activeTouchButton, // Button that causes the event
Qt::NoButton, // Not used, so no need to fake a proper value.
touchEvent->modifiers());
return QWidget::event(&mouseEvent);
}
default:
break;
}
}
return QWidget::event(e);
}
bool KisToolProxy::forwardEvent(ActionState state, KisTool::ToolAction action, QEvent *event, QEvent *originalEvent, QTabletEvent *lastTabletEvent, const QPoint &canvasOriginWorkaround)
{
bool retval = true;
QTabletEvent *tabletEvent = dynamic_cast<QTabletEvent*>(event);
QTouchEvent *touchEvent = dynamic_cast<QTouchEvent*>(event);
QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);
if (tabletEvent) {
QPointF docPoint = tabletToDocument(tabletEvent->hiResGlobalPos(), canvasOriginWorkaround);
tabletEvent->accept();
this->tabletEvent(tabletEvent, docPoint);
forwardToTool(state, action, tabletEvent, docPoint);
retval = tabletEvent->isAccepted();
} else if (touchEvent) {
if (state == END && touchEvent->type() != QEvent::TouchEnd) {
//Fake a touch end if we are "upgrading" a single-touch gesture to a multi-touch gesture.
QTouchEvent fakeEvent(QEvent::TouchEnd, touchEvent->deviceType(), touchEvent->modifiers(), touchEvent->touchPointStates(), touchEvent->touchPoints());
this->touchEvent(&fakeEvent);
} else {
this->touchEvent(touchEvent);
}
} else if (mouseEvent) {
if (lastTabletEvent) {
QPointF docPoint = tabletToDocument(lastTabletEvent->hiResGlobalPos(), canvasOriginWorkaround);
lastTabletEvent->accept();
this->tabletEvent(lastTabletEvent, docPoint);
forwardToTool(state, action, lastTabletEvent, docPoint);
retval = lastTabletEvent->isAccepted();
} else {
QPointF docPoint = widgetToDocument(mouseEvent->posF());
mouseEvent->accept();
if (mouseEvent->type() == QEvent::MouseButtonPress) {
mousePressEvent(mouseEvent, docPoint);
} else if (mouseEvent->type() == QEvent::MouseButtonDblClick) {
mouseDoubleClickEvent(mouseEvent, docPoint);
} else if (mouseEvent->type() == QEvent::MouseButtonRelease) {
mouseReleaseEvent(mouseEvent, docPoint);
} else if (mouseEvent->type() == QEvent::MouseMove) {
mouseMoveEvent(mouseEvent, docPoint);
}
forwardToTool(state, action, originalEvent, docPoint);
retval = mouseEvent->isAccepted();
}
} else if(event->type() == QEvent::KeyPress) {
QKeyEvent* kevent = static_cast<QKeyEvent*>(event);
keyPressEvent(kevent);
} else if(event->type() == QEvent::KeyRelease) {
QKeyEvent* kevent = static_cast<QKeyEvent*>(event);
keyReleaseEvent(kevent);
}
return retval;
}
// override QApplication::notify() for greatest control over event handling
bool TouchApplication::notify(QObject* receiver, QEvent* event)
{
//DebugEventFilter::printEvent(receiver, event);
QEvent::Type evtype = event->type();
// first, try to pass TabletPress/TouchBegin event and see if anyone accepts it
// In Qt, events are first sent to a QWindow, which then figures out what widget they should be sent to.
// Unfortunately, QWindow event handler always returns true and doesn't change accepted state of event (it
// sends a copy of the event and discards the accepted state of the copy), so we must save result from
// sending event to final widget (by incrementing acceptCount)
// When faking mouse events, we must send them to the QWindow instead of a widget, since some of the
// routing logic is there, e.g., for handling popup windows
if((evtype == QEvent::TabletPress || evtype == QEvent::TouchBegin) && inputState == None) {
if(receiver->isWindowType()) {
int prevacceptcount = acceptCount;
receiver = getRecvWindow(receiver);
QApplication::notify(receiver, event);
if(acceptCount > prevacceptcount) {
acceptCount = prevacceptcount;
inputState = PassThru;
return true;
}
// else, fall through and resend as mouse event
// we must send a tablet release to put QWidgetWindow in consistent state
// doesn't appear to be necessary for TouchBegin
if(evtype == QEvent::TabletPress) {
QTabletEvent* tev = static_cast<QTabletEvent*>(event);
QTabletEvent rlev(QEvent::TabletRelease, tev->posF(), tev->globalPosF(), tev->device(),
tev->pointerType(), 0, 0, 0, 0, 0, 0, tev->modifiers(), tev->uniqueId());
QApplication::notify(receiver, &rlev);
}
}
else {
event->setAccepted(false);
bool res = QApplication::notify(receiver, event);
if(event->isAccepted())
acceptCount++;
return res;
}
}
switch(evtype) {
// reject external mouse events if we are translating touch or tablet input
case QEvent::MouseButtonRelease:
case QEvent::MouseMove:
case QEvent::MouseButtonPress:
// QWidgetWindow always forwards mouse event to widget as spontaneous event (why?)
if(inputState != None && event->spontaneous() && receiver->isWindowType())
return true; // qDebug("This event should be rejected!");
break;
case QEvent::TabletRelease:
if(inputState == PassThru)
inputState = None;
case QEvent::TabletMove:
case QEvent::TabletPress:
{
// TODO: should this only be done if inputState == TabletInput?
receiver = getRecvWindow(receiver);
QTabletEvent* tabletevent = static_cast<QTabletEvent*>(event);
QEvent::Type mevtype = QEvent::MouseMove;
if(inputState == None && evtype == QEvent::TabletPress) {
mevtype = QEvent::MouseButtonPress;
inputState = TabletInput;
}
else if(inputState != TabletInput) // this covers PassThru
break;
if(evtype == QEvent::TabletRelease) {
mevtype = QEvent::MouseButtonRelease;
inputState = None;
}
return sendMouseEvent(receiver, mevtype, tabletevent->globalPos(), tabletevent->modifiers());
}
#ifdef QT_5
case QEvent::TouchCancel:
evtype = QEvent::TouchEnd;
#endif
case QEvent::TouchEnd:
if(inputState == PassThru) // && touchPoints.count() == 1)
inputState = None;
case QEvent::TouchUpdate:
case QEvent::TouchBegin:
{
receiver = getRecvWindow(receiver);
QTouchEvent* touchevent = static_cast<QTouchEvent*>(event);
QEvent::Type mevtype = QEvent::MouseMove;
if(inputState == None && evtype == QEvent::TouchBegin
&& touchevent->touchPoints().size() == 1 && touchevent->device()->type() != QTouchDevice::TouchPad) {
activeTouchId = touchevent->touchPoints().first().id();
mevtype = QEvent::MouseButtonPress;
inputState = TouchInput;
}
else if(inputState != TouchInput) // this covers PassThru
break;
if(evtype == QEvent::TouchEnd)
inputState = None;
event->setAccepted(true);
QList<QTouchEvent::TouchPoint> touchPoints = touchevent->touchPoints();
for(int ii = 0; ii < touchPoints.count(); ++ii) {
const QTouchEvent::TouchPoint& touchpt = touchPoints.at(ii);
if(touchpt.id() == activeTouchId) {
if(touchpt.state() == Qt::TouchPointReleased) {
mevtype = QEvent::MouseButtonRelease;
activeTouchId = -1;
}
return sendMouseEvent(receiver, mevtype, touchpt.screenPos().toPoint(), touchevent->modifiers());
}
}
// swallow all touch events until TouchEnd
// another option would be to propagate the touch event with the activeTouchId point removed, if >1 point
return true;
}
default:
break;
}
return QApplication::notify(receiver, event);
}
bool MixxxApplication::notify(QObject* target, QEvent* event) {
switch (event->type()) {
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
{
QTouchEvent* touchEvent = static_cast<QTouchEvent*>(event);
QList<QTouchEvent::TouchPoint> touchPoints = touchEvent->touchPoints();
QEvent::Type eventType = QEvent::None;
Qt::MouseButtons buttons = Qt::NoButton;
QWidget* fakeMouseWidget = NULL;
bool baseReturn;
//qDebug() << "&" << touchEvent->type() << target;
if (touchEvent->deviceType() != QTouchEvent::TouchScreen) {
break;
}
switch (event->type()) {
case QEvent::TouchBegin:
// try to deliver as touch event
baseReturn = QApplication::notify(target, event);
if (dynamic_cast<MixxxMainWindow*>(touchEvent->widget())) {
// the touchEvent has fallen trough to the MixxxMainWindow, because there
// was no touch enabled widget found.
// Now we resent this event and all following events for this touch point
// as Mouse events.
eventType = QEvent::MouseButtonPress;
if (touchIsRightButton()) {
// touch is right click
m_activeTouchButton = Qt::RightButton;
buttons = Qt::RightButton;
} else {
m_activeTouchButton = Qt::LeftButton;
buttons = Qt::LeftButton;
}
m_fakeMouseSourcePointId = touchPoints.first().id();
m_fakeMouseWidget = dynamic_cast<QWidget*>(target);
fakeMouseWidget = m_fakeMouseWidget;
break;
}
return baseReturn;
case QEvent::TouchUpdate:
if (m_fakeMouseWidget) {
eventType = QEvent::MouseMove;
buttons = m_activeTouchButton;
fakeMouseWidget = m_fakeMouseWidget;
break;
}
return QApplication::notify(target, event);
case QEvent::TouchEnd:
if (m_fakeMouseWidget) {
eventType = QEvent::MouseButtonRelease;
m_fakeMouseSourcePointId = touchPoints.first().id();
fakeMouseWidget = m_fakeMouseWidget;
m_fakeMouseWidget = NULL;
break;
}
return QApplication::notify(target, event);
default:
return QApplication::notify(target, event);
}
for (int i = 0; i < touchPoints.count(); ++i) {
const QTouchEvent::TouchPoint& touchPoint = touchPoints.at(i);
if (touchPoint.id() == m_fakeMouseSourcePointId) {
QMouseEvent mouseEvent(eventType,
fakeMouseWidget->mapFromGlobal(touchPoint.screenPos().toPoint()),
touchPoint.screenPos().toPoint(),
m_activeTouchButton, // Button that causes the event
buttons,
touchEvent->modifiers());
//qDebug() << "#" << mouseEvent.type() << mouseEvent.button() << mouseEvent.buttons() << mouseEvent.pos() << mouseEvent.globalPos();
//if (m_fakeMouseWidget->focusPolicy() & Qt::ClickFocus) {
// fakeMouseWidget->setFocus();
//}
QApplication::notify(fakeMouseWidget, &mouseEvent);
return true;
}
}
//qDebug() << "return false";
return false;
break;
}
case QEvent::MouseButtonRelease:
{
bool ret = QApplication::notify(target, event);
if (m_fakeMouseWidget) {
// It may happen the faked mouse event was grabbed by a non touch window.
// eg.: if we have started to drag by touch.
// In this case X11 generates a MouseButtonRelease instead of a TouchPointReleased Event.
// QApplication still tracks the Touch point and prevent touch to other widgets
// So we need to fake the Touch release event as well to clean up
// QApplicationPrivate::widgetForTouchPointId and QApplicationPrivate::appCurrentTouchPoints;
m_fakeMouseWidget = NULL; // Disable MouseButtonRelease fake
QList<QTouchEvent::TouchPoint> touchPoints;
QTouchEvent::TouchPoint tp;
tp.setId(m_fakeMouseSourcePointId);
tp.setState(Qt::TouchPointReleased);
touchPoints.append(tp);
qt_translateRawTouchEvent(NULL, QTouchEvent::TouchScreen, touchPoints);
}
return ret;
}
default:
break;
}
// No touch event
bool ret = QApplication::notify(target, event);
return ret;
}