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Port examples away from deprecated QTouchEvent APIs

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Use the QEventPoints API instead.

Change-Id: I7310fd34df110cad508f6188a41ad452a3cf848d
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
This commit is contained in:
Volker Hilsheimer 2021-04-16 11:29:12 +02:00
parent 7709463b55
commit 6a4aa096e9
5 changed files with 35 additions and 35 deletions
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24
examples/widgets/painting/pathstroke/pathstroke.cpp
View File

@ -622,11 +622,11 @@ bool PathStrokeRenderer::event(QEvent *e)
case QEvent::TouchUpdate:
{
const QTouchEvent *const event = static_cast<const QTouchEvent*>(e);
const QList<QTouchEvent::TouchPoint> points = event->touchPoints();
for (const QTouchEvent::TouchPoint &touchPoint : points) {
const int id = touchPoint.id();
switch (touchPoint.state()) {
case Qt::TouchPointPressed:
const auto points = event->points();
for (const auto &point : points) {
const int id = point.id();
switch (point.state()) {
case QEventPoint::Pressed:
{
// find the point, move it
const auto mappedPoints = m_fingerPointMapping.values();
@ -638,32 +638,32 @@ bool PathStrokeRenderer::event(QEvent *e)
if (activePoints.contains(i))
continue;
qreal d = QLineF(touchPoint.position(), m_points.at(i)).length();
qreal d = QLineF(point.position(), m_points.at(i)).length();
if ((distance < 0 && d < 12 * m_pointSize) || d < distance) {
distance = d;
activePoint = i;
}
}
if (activePoint != -1) {
m_fingerPointMapping.insert(touchPoint.id(), activePoint);
m_points[activePoint] = touchPoint.position();
m_fingerPointMapping.insert(point.id(), activePoint);
m_points[activePoint] = point.position();
}
break;
}
case Qt::TouchPointReleased:
case QEventPoint::Released:
{
// move the point and release
QHash<int,int>::iterator it = m_fingerPointMapping.find(id);
m_points[it.value()] = touchPoint.position();
m_points[it.value()] = point.position();
m_fingerPointMapping.erase(it);
break;
}
case Qt::TouchPointMoved:
case QEventPoint::Updated:
{
// move the point
const int pointIdx = m_fingerPointMapping.value(id, -1);
if (pointIdx >= 0)
m_points[pointIdx] = touchPoint.position();
m_points[pointIdx] = point.position();
break;
}
default:

24
examples/widgets/painting/shared/hoverpoints.cpp
View File

@ -176,12 +176,12 @@ bool HoverPoints::eventFilter(QObject *object, QEvent *event)
case QEvent::TouchUpdate:
{
const QTouchEvent *const touchEvent = static_cast<const QTouchEvent*>(event);
const QList<QTouchEvent::TouchPoint> points = touchEvent->touchPoints();
const auto points = touchEvent->points();
const qreal pointSize = qMax(m_pointSize.width(), m_pointSize.height());
for (const QTouchEvent::TouchPoint &touchPoint : points) {
const int id = touchPoint.id();
switch (touchPoint.state()) {
case Qt::TouchPointPressed:
for (const auto &point : points) {
const int id = point.id();
switch (point.state()) {
case QEventPoint::Pressed:
{
// find the point, move it
const auto mappedPoints = m_fingerPointMapping.values();
@ -197,7 +197,7 @@ bool HoverPoints::eventFilter(QObject *object, QEvent *event)
if (activePoints.contains(i))
continue;
qreal d = QLineF(touchPoint.position(), m_points.at(i)).length();
qreal d = QLineF(point.position(), m_points.at(i)).length();
if ((distance < 0 && d < 12 * pointSize) || d < distance) {
distance = d;
activePoint = i;
@ -206,25 +206,25 @@ bool HoverPoints::eventFilter(QObject *object, QEvent *event)
}
}
if (activePoint != -1) {
m_fingerPointMapping.insert(touchPoint.id(), activePoint);
movePoint(activePoint, touchPoint.position());
m_fingerPointMapping.insert(point.id(), activePoint);
movePoint(activePoint, point.position());
}
}
break;
case Qt::TouchPointReleased:
case QEventPoint::Released:
{
// move the point and release
QHash<int,int>::iterator it = m_fingerPointMapping.find(id);
movePoint(it.value(), touchPoint.position());
movePoint(it.value(), point.position());
m_fingerPointMapping.erase(it);
}
break;
case Qt::TouchPointMoved:
case QEventPoint::Updated:
{
// move the point
const int pointIdx = m_fingerPointMapping.value(id, -1);
if (pointIdx >= 0) // do we track this point?
movePoint(pointIdx, touchPoint.position());
movePoint(pointIdx, point.position());
}
break;
default:

6
examples/widgets/touch/fingerpaint/scribblearea.cpp
View File

@ -196,11 +196,11 @@ bool ScribbleArea::event(QEvent *event)
case QEvent::TouchEnd:
{
const QTouchEvent *touch = static_cast<QTouchEvent *>(event);
const QList<QTouchEvent::TouchPoint> touchPoints = static_cast<QTouchEvent *>(event)->touchPoints();
const auto touchPoints = static_cast<QTouchEvent *>(event)->points();
for (const QTouchEvent::TouchPoint &touchPoint : touchPoints) {
switch (touchPoint.state()) {
case Qt::TouchPointStationary:
case Qt::TouchPointReleased:
case QEventPoint::Stationary:
case QEventPoint::Released:
// don't do anything if this touch point hasn't moved or has been released
continue;
default:

8
examples/widgets/touch/knobs/knob.cpp
View File

@ -77,11 +77,11 @@ bool Knob::sceneEvent(QEvent *event)
{
QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
if (touchEvent->touchPoints().count() == 2) {
const QTouchEvent::TouchPoint &touchPoint1 = touchEvent->touchPoints().first();
const QTouchEvent::TouchPoint &touchPoint2 = touchEvent->touchPoints().last();
if (touchEvent->points().count() == 2) {
const QEventPoint &touchPoint1 = touchEvent->points().first();
const QEventPoint &touchPoint2 = touchEvent->points().last();
QLineF line1(touchPoint1.lastScenePos(), touchPoint2.lastScenePos());
QLineF line1(touchPoint1.sceneLastPosition(), touchPoint2.sceneLastPosition());
QLineF line2(touchPoint1.scenePosition(), touchPoint2.scenePosition());
setTransform(QTransform().rotate(line2.angleTo(line1)), true);

8
examples/widgets/touch/pinchzoom/graphicsview.cpp
View File

@ -68,15 +68,15 @@ bool GraphicsView::viewportEvent(QEvent *event)
case QEvent::TouchEnd:
{
QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
QList<QTouchEvent::TouchPoint> touchPoints = touchEvent->touchPoints();
const auto touchPoints = touchEvent->points();
if (touchPoints.count() == 2) {
// determine scale factor
const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
const QEventPoint &touchPoint0 = touchPoints.first();
const QEventPoint &touchPoint1 = touchPoints.last();
qreal currentScaleFactor =
QLineF(touchPoint0.position(), touchPoint1.position()).length()
/ QLineF(touchPoint0.pressPosition(), touchPoint1.pressPosition()).length();
if (touchEvent->touchPointStates() & Qt::TouchPointReleased) {
if (touchEvent->touchPointStates() & QEventPoint::Released) {
// if one of the fingers is released, remember the current scale
// factor so that adding another finger later will continue zooming
// by adding new scale factor to the existing remembered value.