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#include "customgesturerecognizer.h"
#include "qgesture.h"
const char* SingleshotGestureRecognizer::Name = "SingleshotGesture";
const char* PinchGestureRecognizer::Name = "PinchGesture";
const char* SecondFingerGestureRecognizer::Name = "SecondFingerGesture";
const char* PanGestureRecognizer::Name = "PanGesture";
SingleshotGestureRecognizer::SingleshotGestureRecognizer(QObject *parent)
: QGestureRecognizer(QString(SingleshotGestureRecognizer::Name), parent)
{
gesture = new SingleshotGesture(this, SingleshotGestureRecognizer::Name);
}
QGestureRecognizer::Result SingleshotGestureRecognizer::filterEvent(const QEvent *event)
{
if (event->type() == SingleshotEvent::Type) {
gesture->setHotSpot(static_cast<const SingleshotEvent*>(event)->point);
return QGestureRecognizer::GestureFinished;
}
return QGestureRecognizer::NotGesture;
}
void SingleshotGestureRecognizer::reset()
{
gesture->setHotSpot(QPoint());
gesture->offset = QPoint();
}
PinchGestureRecognizer::PinchGestureRecognizer(QObject *parent)
: QGestureRecognizer(PinchGestureRecognizer::Name, parent)
{
gesture = new PinchGesture(this, PinchGestureRecognizer::Name);
}
QGestureRecognizer::Result PinchGestureRecognizer::filterEvent(const QEvent *event)
{
if (event->type() != TouchEvent::Type)
return QGestureRecognizer::Ignore;
const TouchEvent *e = static_cast<const TouchEvent*>(event);
if (e->points[0].state == TouchPoint::Begin)
gesture->startPoints[0] = e->points[0];
if (e->points[1].state == TouchPoint::Begin)
gesture->startPoints[1] = e->points[1];
gesture->lastPoints[0] = gesture->points[0];
gesture->lastPoints[1] = gesture->points[1];
gesture->points[0] = e->points[0];
gesture->points[1] = e->points[1];
if (((e->points[0].state == TouchPoint::Begin || e->points[0].state == TouchPoint::Update))) {
if (e->points[1].state == TouchPoint::End || e->points[1].state == TouchPoint::None)
return MaybeGesture;
return GestureStarted;
} else if (((e->points[1].state == TouchPoint::Begin || e->points[1].state == TouchPoint::Update))) {
if (e->points[0].state == TouchPoint::End || e->points[0].state == TouchPoint::None)
return MaybeGesture;
return GestureStarted;
} else if ((e->points[0].state == TouchPoint::End && e->points[1].state == TouchPoint::End) ||
(e->points[0].state == TouchPoint::End && e->points[1].state == TouchPoint::None) ||
(e->points[0].state == TouchPoint::None && e->points[1].state == TouchPoint::End)) {
return QGestureRecognizer::NotGesture;
}
return QGestureRecognizer::NotGesture;
}
void PinchGestureRecognizer::reset()
{
gesture->startPoints[0] = TouchPoint();
gesture->startPoints[1] = TouchPoint();
gesture->lastPoints[0] = TouchPoint();
gesture->lastPoints[1] = TouchPoint();
gesture->points[0] = TouchPoint();
gesture->points[1] = TouchPoint();
gesture->offset = QPoint();
}
SecondFingerGestureRecognizer::SecondFingerGestureRecognizer(QObject *parent)
: QGestureRecognizer(SecondFingerGestureRecognizer::Name, parent)
{
gesture = new SecondFingerGesture(this, SecondFingerGestureRecognizer::Name);
}
QGestureRecognizer::Result SecondFingerGestureRecognizer::filterEvent(const QEvent *event)
{
if (event->type() != TouchEvent::Type)
return QGestureRecognizer::Ignore;
const TouchEvent *e = static_cast<const TouchEvent*>(event);
if (e->points[1].state != TouchPoint::None) {
if (e->points[1].state == TouchPoint::Begin)
gesture->startPoint = e->points[1];
gesture->lastPoint = gesture->point;
gesture->point = e->points[1];
if (e->points[1].state == TouchPoint::End)
return QGestureRecognizer::GestureFinished;
else if (e->points[1].state != TouchPoint::None)
return QGestureRecognizer::GestureStarted;
}
return QGestureRecognizer::NotGesture;
}
void SecondFingerGestureRecognizer::reset()
{
gesture->startPoint = TouchPoint();
gesture->lastPoint = TouchPoint();
gesture->point = TouchPoint();
gesture->offset = QPoint();
}
PanGestureRecognizer::PanGestureRecognizer(QObject *parent)
: QGestureRecognizer(PanGestureRecognizer::Name, parent)
{
gesture = new PanGesture(this, PanGestureRecognizer::Name);
}
QGestureRecognizer::Result PanGestureRecognizer::filterEvent(const QEvent *event)
{
if (event->type() != QEvent::TouchBegin &&
event->type() != QEvent::TouchUpdate &&
event->type() != QEvent::TouchEnd)
return QGestureRecognizer::Ignore;
const QTouchEvent *e = static_cast<const QTouchEvent*>(event);
const QList<QTouchEvent::TouchPoint> &points = e->touchPoints();
if (points.size() >= 1) {
gesture->lastPoints[0] = gesture->points[0];
gesture->points[0].id = points.at(0).id();
gesture->points[0].pt = points.at(0).startPos().toPoint();
gesture->points[0].state = (TouchPoint::State)points.at(0).state();
if (points.at(0).state() == Qt::TouchPointPressed) {
gesture->startPoints[0] = gesture->points[0];
gesture->lastPoints[0] = gesture->points[0];
}
}
if (points.size() >= 2) {
gesture->lastPoints[1] = gesture->points[1];
gesture->points[1].id = points.at(1).id();
gesture->points[1].pt = points.at(1).startPos().toPoint();
gesture->points[1].state = (TouchPoint::State)points.at(1).state();
if (points.at(1).state() == Qt::TouchPointPressed) {
gesture->startPoints[1] = gesture->points[1];
gesture->lastPoints[1] = gesture->points[1];
}
}
if (points.size() == 2)
return QGestureRecognizer::GestureStarted;
if (points.size() > 2)
return QGestureRecognizer::MaybeGesture;
if (points.at(0).state() == Qt::TouchPointPressed)
return QGestureRecognizer::MaybeGesture;
if (points.at(0).state() == Qt::TouchPointReleased)
return QGestureRecognizer::GestureFinished;
return QGestureRecognizer::GestureStarted;
}
void PanGestureRecognizer::reset()
{
gesture->startPoints[0] = TouchPoint();
gesture->startPoints[1] = TouchPoint();
gesture->lastPoints[0] = TouchPoint();
gesture->lastPoints[1] = TouchPoint();
gesture->points[0] = TouchPoint();
gesture->points[1] = TouchPoint();
gesture->offset = QPoint();
}
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