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#include <util/synthesizedmouseevents.h>
#include <QtDebug>
#include <QTouchEvent>
#include "mixxxapplication.h"
#include "library/crate/crateid.h"
#include "control/controlproxy.h"
#include "mixxx.h"
// When linking Qt statically on Windows we have to Q_IMPORT_PLUGIN all the
// plugins we link in build/depends.py.
#ifdef QT_NODLL
#include <QtPlugin>
// iconengines plugins
Q_IMPORT_PLUGIN(qsvgicon)
// imageformats plugins
Q_IMPORT_PLUGIN(qsvg)
Q_IMPORT_PLUGIN(qico)
Q_IMPORT_PLUGIN(qtga)
// accessible plugins
Q_IMPORT_PLUGIN(qtaccessiblewidgets)
#endif
MixxxApplication::MixxxApplication(int& argc, char** argv)
: QApplication(argc, argv),
m_fakeMouseSourcePointId(0),
m_fakeMouseWidget(NULL),
m_activeTouchButton(Qt::NoButton),
m_pTouchShift(NULL) {
registerMetaTypes();
}
MixxxApplication::~MixxxApplication() {
}
void MixxxApplication::registerMetaTypes() {
// Register custom data types for signal processing
qRegisterMetaType<TrackId>("TrackId");
qRegisterMetaType<QList<TrackId>>("QList<TrackId>");
qRegisterMetaType<QSet<TrackId>>("QSet<TrackId>");
qRegisterMetaType<CrateId>("CrateId");
qRegisterMetaType<QList<CrateId>>("QList<CrateId>");
qRegisterMetaType<QSet<CrateId>>("QSet<CrateId>");
qRegisterMetaType<TrackPointer>("TrackPointer");
qRegisterMetaType<mixxx::ReplayGain>("mixxx::ReplayGain");
qRegisterMetaType<mixxx::Bpm>("mixxx::Bpm");
qRegisterMetaType<mixxx::Duration>("mixxx::Duration");
}
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
extern void qt_translateRawTouchEvent(QWidget *window,
QTouchEvent::DeviceType deviceType,
const QList<QTouchEvent::TouchPoint> &touchPoints);
bool MixxxApplication::notify(QObject* target, QEvent* event) {
if (isMouseEventSynthesized()) {
if (target->isWidgetType()) {
QWidget* w = static_cast<QWidget*>(target);
if (w->testAttribute(Qt::WA_AcceptTouchEvents)) {
// consume and discards Synthesized Mouse events
// generated by the OS, to not perform the action
// twice
return true;
}
}
}
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;
}
#endif // QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
bool MixxxApplication::touchIsRightButton() {
if (!m_pTouchShift) {
m_pTouchShift = new ControlProxy(
"[Controls]", "touch_shift", this);
}
return (m_pTouchShift->get() != 0.0);
}
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