void QDeclarativePinchArea::updatePinch()
{
Q_D(QDeclarativePinchArea);
if (d->touchPoints.count() == 0) {
if (d->inPinch) {
d->stealMouse = false;
setKeepMouseGrab(false);
d->inPinch = false;
QPointF pinchCenter = mapFromScene(d->sceneLastCenter);
QDeclarativePinchEvent pe(pinchCenter, d->pinchLastScale, d->pinchLastAngle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(pinchCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
emit pinchFinished(&pe);
d->pinchStartDist = 0;
d->pinchActivated = false;
if (d->pinch && d->pinch->target())
d->pinch->setActive(false);
}
return;
}
QTouchEvent::TouchPoint touchPoint1 = d->touchPoints.at(0);
QTouchEvent::TouchPoint touchPoint2 = d->touchPoints.at(d->touchPoints. count() >= 2 ? 1 : 0);
if (d->touchPoints.count() == 2
&& (touchPoint1.state() & Qt::TouchPointPressed || touchPoint2.state() & Qt::TouchPointPressed)) {
d->id1 = touchPoint1.id();
d->sceneStartPoint1 = touchPoint1.scenePos();
d->sceneStartPoint2 = touchPoint2.scenePos();
d->inPinch = false;
d->pinchRejected = false;
d->pinchActivated = true;
} else if (d->pinchActivated && !d->pinchRejected) {
const int dragThreshold = QApplication::startDragDistance();
QPointF p1 = touchPoint1.scenePos();
QPointF p2 = touchPoint2.scenePos();
qreal dx = p1.x() - p2.x();
qreal dy = p1.y() - p2.y();
qreal dist = sqrt(dx*dx + dy*dy);
QPointF sceneCenter = (p1 + p2)/2;
qreal angle = QLineF(p1, p2).angle();
if (d->touchPoints.count() == 1) {
// If we only have one point then just move the center
if (d->id1 == touchPoint1.id())
sceneCenter = d->sceneLastCenter + touchPoint1.scenePos() - d->lastPoint1;
else
sceneCenter = d->sceneLastCenter + touchPoint2.scenePos() - d->lastPoint2;
angle = d->pinchLastAngle;
}
d->id1 = touchPoint1.id();
if (angle > 180)
angle -= 360;
if (!d->inPinch) {
if (d->touchPoints.count() >= 2
&& (qAbs(p1.x()-d->sceneStartPoint1.x()) > dragThreshold
|| qAbs(p1.y()-d->sceneStartPoint1.y()) > dragThreshold
|| qAbs(p2.x()-d->sceneStartPoint2.x()) > dragThreshold
|| qAbs(p2.y()-d->sceneStartPoint2.y()) > dragThreshold)) {
d->sceneStartCenter = sceneCenter;
d->sceneLastCenter = sceneCenter;
d->pinchStartCenter = mapFromScene(sceneCenter);
d->pinchStartDist = dist;
d->pinchStartAngle = angle;
d->pinchLastScale = 1.0;
d->pinchLastAngle = angle;
d->pinchRotation = 0.0;
d->lastPoint1 = p1;
d->lastPoint2 = p2;
QDeclarativePinchEvent pe(d->pinchStartCenter, 1.0, angle, 0.0);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(d->pinchStartCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
pe.setPointCount(d->touchPoints.count());
emit pinchStarted(&pe);
if (pe.accepted()) {
d->inPinch = true;
d->stealMouse = true;
QGraphicsScene *s = scene();
if (s && s->mouseGrabberItem() != this)
grabMouse();
setKeepMouseGrab(true);
if (d->pinch && d->pinch->target()) {
d->pinchStartPos = pinch()->target()->pos();
d->pinchStartScale = d->pinch->target()->scale();
d->pinchStartRotation = d->pinch->target()->rotation();
d->pinch->setActive(true);
}
} else {
d->pinchRejected = true;
}
}
} else if (d->pinchStartDist > 0) {
qreal scale = dist ? dist / d->pinchStartDist : d->pinchLastScale;
qreal da = d->pinchLastAngle - angle;
if (da > 180)
da -= 360;
else if (da < -180)
da += 360;
d->pinchRotation += da;
QPointF pinchCenter = mapFromScene(sceneCenter);
QDeclarativePinchEvent pe(pinchCenter, scale, angle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(mapFromScene(d->sceneLastCenter));
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(touchPoint1.pos());
pe.setPoint2(touchPoint2.pos());
pe.setPointCount(d->touchPoints.count());
d->pinchLastScale = scale;
d->sceneLastCenter = sceneCenter;
d->pinchLastAngle = angle;
d->lastPoint1 = touchPoint1.scenePos();
d->lastPoint2 = touchPoint2.scenePos();
emit pinchUpdated(&pe);
if (d->pinch && d->pinch->target()) {
qreal s = d->pinchStartScale * scale;
s = qMin(qMax(pinch()->minimumScale(),s), pinch()->maximumScale());
pinch()->target()->setScale(s);
QPointF pos = sceneCenter - d->sceneStartCenter + d->pinchStartPos;
if (pinch()->axis() & QDeclarativePinch::XAxis) {
qreal x = pos.x();
if (x < pinch()->xmin())
x = pinch()->xmin();
else if (x > pinch()->xmax())
x = pinch()->xmax();
pinch()->target()->setX(x);
}
if (pinch()->axis() & QDeclarativePinch::YAxis) {
qreal y = pos.y();
if (y < pinch()->ymin())
y = pinch()->ymin();
else if (y > pinch()->ymax())
y = pinch()->ymax();
pinch()->target()->setY(y);
}
if (d->pinchStartRotation >= pinch()->minimumRotation()
&& d->pinchStartRotation <= pinch()->maximumRotation()) {
qreal r = d->pinchRotation + d->pinchStartRotation;
r = qMin(qMax(pinch()->minimumRotation(),r), pinch()->maximumRotation());
pinch()->target()->setRotation(r);
}
}
}
}
}
void QQuickPinchArea::updatePinch()
{
Q_D(QQuickPinchArea);
if (d->touchPoints.count() == 0) {
if (d->inPinch) {
d->inPinch = false;
QPointF pinchCenter = mapFromScene(d->sceneLastCenter);
QQuickPinchEvent pe(pinchCenter, d->pinchLastScale, d->pinchLastAngle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(pinchCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
emit pinchFinished(&pe);
d->pinchStartDist = 0;
d->pinchActivated = false;
if (d->pinch && d->pinch->target())
d->pinch->setActive(false);
}
d->initPinch = false;
d->pinchRejected = false;
d->stealMouse = false;
setKeepMouseGrab(false);
return;
}
if (d->touchPoints.count() == 1) {
setKeepMouseGrab(false);
}
QTouchEvent::TouchPoint touchPoint1 = d->touchPoints.at(0);
QTouchEvent::TouchPoint touchPoint2 = d->touchPoints.at(d->touchPoints. count() >= 2 ? 1 : 0);
QRectF bounds = clipRect();
// Pinch is not started unless there are exactly two touch points
// AND one or more of the points has just now been pressed (wasn't pressed already)
// AND both points are inside the bounds.
if (d->touchPoints.count() == 2
&& (touchPoint1.state() & Qt::TouchPointPressed || touchPoint2.state() & Qt::TouchPointPressed) &&
bounds.contains(touchPoint1.pos()) && bounds.contains(touchPoint2.pos())) {
d->id1 = touchPoint1.id();
d->sceneStartPoint1 = touchPoint1.scenePos();
d->sceneStartPoint2 = touchPoint2.scenePos();
d->pinchActivated = true;
d->initPinch = true;
}
if (d->pinchActivated && !d->pinchRejected) {
const int dragThreshold = qApp->styleHints()->startDragDistance();
QPointF p1 = touchPoint1.scenePos();
QPointF p2 = touchPoint2.scenePos();
qreal dx = p1.x() - p2.x();
qreal dy = p1.y() - p2.y();
qreal dist = sqrt(dx*dx + dy*dy);
QPointF sceneCenter = (p1 + p2)/2;
qreal angle = QLineF(p1, p2).angle();
if (d->touchPoints.count() == 1) {
// If we only have one point then just move the center
if (d->id1 == touchPoint1.id())
sceneCenter = d->sceneLastCenter + touchPoint1.scenePos() - d->lastPoint1;
else
sceneCenter = d->sceneLastCenter + touchPoint2.scenePos() - d->lastPoint2;
angle = d->pinchLastAngle;
}
d->id1 = touchPoint1.id();
if (angle > 180)
angle -= 360;
if (!d->inPinch || d->initPinch) {
if (d->touchPoints.count() >= 2
&& (qAbs(p1.x()-d->sceneStartPoint1.x()) >= dragThreshold
|| qAbs(p1.y()-d->sceneStartPoint1.y()) >= dragThreshold
|| qAbs(p2.x()-d->sceneStartPoint2.x()) >= dragThreshold
|| qAbs(p2.y()-d->sceneStartPoint2.y()) >= dragThreshold)) {
d->initPinch = false;
d->sceneStartCenter = sceneCenter;
d->sceneLastCenter = sceneCenter;
d->pinchStartCenter = mapFromScene(sceneCenter);
d->pinchStartDist = dist;
d->pinchStartAngle = angle;
d->pinchLastScale = 1.0;
d->pinchLastAngle = angle;
d->pinchRotation = 0.0;
d->lastPoint1 = p1;
d->lastPoint2 = p2;
QQuickPinchEvent pe(d->pinchStartCenter, 1.0, angle, 0.0);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(d->pinchStartCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
pe.setPointCount(d->touchPoints.count());
emit pinchStarted(&pe);
if (pe.accepted()) {
d->inPinch = true;
d->stealMouse = true;
QQuickWindow *c = window();
if (c && c->mouseGrabberItem() != this)
grabMouse();
setKeepMouseGrab(true);
if (d->pinch && d->pinch->target()) {
d->pinchStartPos = pinch()->target()->position();
d->pinchStartScale = d->pinch->target()->scale();
d->pinchStartRotation = d->pinch->target()->rotation();
d->pinch->setActive(true);
}
} else {
d->pinchRejected = true;
}
}
} else if (d->pinchStartDist > 0) {
qreal scale = dist ? dist / d->pinchStartDist : d->pinchLastScale;
qreal da = d->pinchLastAngle - angle;
if (da > 180)
da -= 360;
else if (da < -180)
da += 360;
d->pinchRotation += da;
QPointF pinchCenter = mapFromScene(sceneCenter);
QQuickPinchEvent pe(pinchCenter, scale, angle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(mapFromScene(d->sceneLastCenter));
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(touchPoint1.pos());
pe.setPoint2(touchPoint2.pos());
pe.setPointCount(d->touchPoints.count());
d->pinchLastScale = scale;
d->sceneLastCenter = sceneCenter;
d->pinchLastAngle = angle;
d->lastPoint1 = touchPoint1.scenePos();
d->lastPoint2 = touchPoint2.scenePos();
emit pinchUpdated(&pe);
if (d->pinch && d->pinch->target()) {
qreal s = d->pinchStartScale * scale;
s = qMin(qMax(pinch()->minimumScale(),s), pinch()->maximumScale());
pinch()->target()->setScale(s);
QPointF pos = sceneCenter - d->sceneStartCenter + d->pinchStartPos;
if (pinch()->axis() & QQuickPinch::XAxis) {
qreal x = pos.x();
if (x < pinch()->xmin())
x = pinch()->xmin();
else if (x > pinch()->xmax())
x = pinch()->xmax();
pinch()->target()->setX(x);
}
if (pinch()->axis() & QQuickPinch::YAxis) {
qreal y = pos.y();
if (y < pinch()->ymin())
y = pinch()->ymin();
else if (y > pinch()->ymax())
y = pinch()->ymax();
pinch()->target()->setY(y);
}
if (d->pinchStartRotation >= pinch()->minimumRotation()
&& d->pinchStartRotation <= pinch()->maximumRotation()) {
qreal r = d->pinchRotation + d->pinchStartRotation;
r = qMin(qMax(pinch()->minimumRotation(),r), pinch()->maximumRotation());
pinch()->target()->setRotation(r);
}
}
}
}
}
/*!
\internal
*/
void QDeclarativeGeoMapGestureArea::updatePinch()
{
// Calculate the new zoom level if we have distance ( >= 2 touchpoints), otherwise stick with old.
qreal newZoomLevel = pinch_.zoom.previous;
if (distanceBetweenTouchPoints_) {
newZoomLevel =
// How much further/closer the current touchpoints are (in pixels) compared to pinch start
((distanceBetweenTouchPoints_ - pinch_.startDist) *
// How much one pixel corresponds in units of zoomlevel (and multiply by above delta)
(pinch_.zoom.maximumChange / ((declarativeMap_->width() + declarativeMap_->height()) / 2))) +
// Add to starting zoom level. Sign of (dist-pinchstartdist) takes care of zoom in / out
pinch_.zoom.start;
}
qreal da = pinch_.lastAngle - twoTouchAngle_;
if (da > 180)
da -= 360;
else if (da < -180)
da += 360;
pinch_.rotation.angle -= da;
pinch_.event.setCenter(declarativeMap_->mapFromScene(sceneCenter_));
pinch_.event.setAngle(twoTouchAngle_);
pinch_.lastPoint1 = touchPoints_.at(0).scenePos();
pinch_.lastPoint2 = touchPoints_.at(1).scenePos();
pinch_.event.setPoint1(pinch_.lastPoint1);
pinch_.event.setPoint2(pinch_.lastPoint2);
pinch_.event.setPointCount(touchPoints_.count());
pinch_.event.setAccepted(true);
pinch_.lastAngle = twoTouchAngle_;
emit pinchUpdated(&pinch_.event);
if (activeGestures_ & ZoomGesture) {
// Take maximum and minimumzoomlevel into account
qreal perPinchMinimumZoomLevel = qMax(pinch_.zoom.start - pinch_.zoom.maximumChange, pinch_.zoom.minimum);
qreal perPinchMaximumZoomLevel = qMin(pinch_.zoom.start + pinch_.zoom.maximumChange, pinch_.zoom.maximum);
newZoomLevel = qMin(qMax(perPinchMinimumZoomLevel, newZoomLevel), perPinchMaximumZoomLevel);
declarativeMap_->setZoomLevel(newZoomLevel);
}
if (activeGestures_ & TiltGesture && pinch_.zoom.minimum >= 0 && pinch_.zoom.maximum >= 0) {
// Note: tilt is not yet supported.
qreal newTilt = pinch_.tilt.previous;
if (distanceBetweenTouchPoints_) {
newTilt =
// How much further/closer the current touchpoints are (in pixels) compared to pinch start
((distanceBetweenTouchPoints_ - pinch_.startDist) *
// How much one pixel corresponds in units of tilt degrees (and multiply by above delta)
(pinch_.tilt.maximumChange / ((declarativeMap_->width() + declarativeMap_->height()) / 2))) +
// Add to starting tilt.
pinch_.tilt.start;
}
qreal perPinchMinimumTilt = qMax(pinch_.tilt.start - pinch_.tilt.maximumChange, pinch_.tilt.minimum);
qreal perPinchMaximumTilt = qMin(pinch_.tilt.start + pinch_.tilt.maximumChange, pinch_.tilt.maximum);
newTilt = qMin(qMax(perPinchMinimumTilt, newTilt), perPinchMaximumTilt);
pinch_.tilt.previous = newTilt;
declarativeMap_->setTilt(newTilt);
}
if (activeGestures_ & RotationGesture) {
bool unlimitedRotation = (pinch_.rotation.minimum == 0.0 && pinch_.rotation.maximum == 0.0);
if ((pinch_.rotation.start >= pinch_.rotation.minimum && pinch_.rotation.start <= pinch_.rotation.maximum) || unlimitedRotation) {
qreal r = pinch_.rotation.angle * pinch_.rotation.factor + pinch_.rotation.start;
if (!unlimitedRotation)
r = qMin(qMax(pinch_.rotation.minimum,r), pinch_.rotation.maximum);
if (r > 360.0)
r -= 360;
if (r < -360.0)
r += 360.0;
declarativeMap_->setBearing(r);
}
}
}
