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fix: filter synthesized click after wheel/gesture to prevent trackpad flicker #180

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fix: filter synthesized click after wheel/gesture to prevent trackpad flicker #180

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13 changes: 12 additions & 1 deletion libimageviewer/viewpanel/scen/imagegraphicsview.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1046,7 +1046,8 @@ void LibImageGraphicsView::mouseReleaseEvent(QMouseEvent *e)
}
}
}
if ((QDateTime::currentMSecsSinceEpoch() - m_clickTime) < 200 && abs(xpos) < 50) {
if ((QDateTime::currentMSecsSinceEpoch() - m_clickTime) < 200 && abs(xpos) < 50 &&
(QDateTime::currentMSecsSinceEpoch() - m_lastWheelOrGestureTime) >= 300) {
m_clickTime = QDateTime::currentMSecsSinceEpoch();
emit sigClicked();
}
Expand All @@ -1062,6 +1063,12 @@ void LibImageGraphicsView::mouseReleaseEvent(QMouseEvent *e)

void LibImageGraphicsView::mousePressEvent(QMouseEvent *e)
{
// 过滤触摸板/触摸屏缩放手势结束后短时间内的合成点击，避免误触发查看模式切换
if (e->source() == Qt::MouseEventSynthesizedByQt &&
(QDateTime::currentMSecsSinceEpoch() - m_lastWheelOrGestureTime) < 300) {
e->accept();
return;
}
#ifdef tablet_PC
m_press = true;
#endif
Expand Down Expand Up @@ -1353,6 +1360,7 @@ void LibImageGraphicsView::pinchTriggered(QPinchGesture *gesture)

if (gesture->state() == Qt::GestureFinished) {
m_isFirstPinch = false;
m_lastWheelOrGestureTime = QDateTime::currentMSecsSinceEpoch();
gesture->setCenterPoint(m_centerPoint);
return;
}
Expand Down Expand Up @@ -1484,6 +1492,9 @@ void LibImageGraphicsView::hideSpinner()

void LibImageGraphicsView::wheelEvent(QWheelEvent *event)
{
// 记录滚轮时间戳，用于过滤手势结束后短时间内的合成点击
m_lastWheelOrGestureTime = QDateTime::currentMSecsSinceEpoch();

// 加载过程不可缩放
if (m_spinner && m_spinner->isVisible()) {
return;
Expand Down
2 changes: 2 additions & 0 deletions libimageviewer/viewpanel/scen/imagegraphicsview.h
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Original file line number Diff line number Diff line change
Expand Up @@ -249,6 +249,8 @@ private slots:

//单击时间
qint64 m_clickTime{0};
//最近一次滚轮/缩放手势的时间戳，用于过滤手势结束后合成的点击
qint64 m_lastWheelOrGestureTime{0};
};

#endif // IMAGEVIEW_H
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