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Added support for trackpad pan gesture.

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This commit is contained in:
Leonardo Zide 2022-05-07 18:46:26 -07:00
parent 7716ffb6e6
commit d2f22773e3
4 changed files with 107 additions and 36 deletions
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3
common/lc_model.cpp
View file

@ -4187,8 +4187,7 @@ void lcModel::UpdateZoomTool(lcCamera* Camera, float Mouse)
void lcModel::UpdatePanTool(lcCamera* Camera, const lcVector3& Distance)
{
Camera->Pan(Distance - mMouseToolDistance, mCurrentStep, gMainWindow->GetAddKeys());
mMouseToolDistance = Distance;
Camera->Pan(Distance, mCurrentStep, gMainWindow->GetAddKeys());
UpdateAllViews();
}

106
common/lc_view.cpp
View file

@ -2178,6 +2178,73 @@ void lcView::StartOrbitTracking()
OnButtonDown(lcTrackButton::Left);
}
void lcView::StartPanGesture()
{
lcModel* ActiveModel = GetActiveModel();
StartPan(mWidth / 2, mHeight / 2);
ActiveModel->BeginMouseTool();
}
void lcView::UpdatePanGesture(int dx, int dy)
{
UpdatePan(mPanX + dx, mPanY + dy);
}
void lcView::StartPan(int x, int y)
{
mPanX = x;
mPanY = y;
}
void lcView::UpdatePan(int x, int y)
{
if (x == mPanX && y == mPanY)
return;
lcModel* ActiveModel = GetActiveModel();
lcVector3 Points[4] =
{
lcVector3((float)x, (float)y, 0.0f),
lcVector3((float)x, (float)y, 1.0f),
lcVector3(mPanX, mPanY, 0.0f),
lcVector3(mPanX, mPanY, 1.0f)
};
UnprojectPoints(Points, 4);
const lcVector3& CurrentStart = Points[0];
const lcVector3& CurrentEnd = Points[1];
const lcVector3& MouseDownStart = Points[2];
const lcVector3& MouseDownEnd = Points[3];
lcVector3 Center = ActiveModel->GetSelectionOrModelCenter();
lcVector3 PlaneNormal(mCamera->mPosition - mCamera->mTargetPosition);
lcVector4 Plane(PlaneNormal, -lcDot(PlaneNormal, Center));
lcVector3 Intersection, MoveStart;
if (!lcLineSegmentPlaneIntersection(&Intersection, CurrentStart, CurrentEnd, Plane) || !lcLineSegmentPlaneIntersection(&MoveStart, MouseDownStart, MouseDownEnd, Plane))
{
Center = MouseDownStart + lcNormalize(MouseDownEnd - MouseDownStart) * 10.0f;
Plane = lcVector4(PlaneNormal, -lcDot(PlaneNormal, Center));
if (!lcLineSegmentPlaneIntersection(&Intersection, CurrentStart, CurrentEnd, Plane) || !lcLineSegmentPlaneIntersection(&MoveStart, MouseDownStart, MouseDownEnd, Plane))
return;
}
mPanX = x;
mPanY = y;
ActiveModel->UpdatePanTool(mCamera, MoveStart - Intersection);
}
void lcView::EndPanGesture(bool Accept)
{
lcModel* ActiveModel = GetActiveModel();
ActiveModel->EndMouseTool(lcTool::Pan, Accept);
}
void lcView::StartTracking(lcTrackButton TrackButton)
{
@ -2223,8 +2290,12 @@ void lcView::StartTracking(lcTrackButton TrackButton)
case lcTool::ColorPicker:
break;
case lcTool::Zoom:
case lcTool::Pan:
StartPan(mMouseX, mMouseY);
ActiveModel->BeginMouseTool();
break;
case lcTool::Zoom:
case lcTool::RotateView:
case lcTool::Roll:
ActiveModel->BeginMouseTool();
@ -2864,38 +2935,7 @@ void lcView::OnMouseMove()
break;
case lcTrackTool::Pan:
{
lcVector3 Points[4] =
{
lcVector3((float)mMouseX, (float)mMouseY, 0.0f),
lcVector3((float)mMouseX, (float)mMouseY, 1.0f),
lcVector3(mMouseDownX, mMouseDownY, 0.0f),
lcVector3(mMouseDownX, mMouseDownY, 1.0f)
};
UnprojectPoints(Points, 4);
const lcVector3& CurrentStart = Points[0];
const lcVector3& CurrentEnd = Points[1];
const lcVector3& MouseDownStart = Points[2];
const lcVector3& MouseDownEnd = Points[3];
lcVector3 Center = ActiveModel->GetSelectionOrModelCenter();
lcVector3 PlaneNormal(mCamera->mPosition - mCamera->mTargetPosition);
lcVector4 Plane(PlaneNormal, -lcDot(PlaneNormal, Center));
lcVector3 Intersection, MoveStart;
if (!lcLineSegmentPlaneIntersection(&Intersection, CurrentStart, CurrentEnd, Plane) || !lcLineSegmentPlaneIntersection(&MoveStart, MouseDownStart, MouseDownEnd, Plane))
{
Center = MouseDownStart + lcNormalize(MouseDownEnd - MouseDownStart) * 10.0f;
Plane = lcVector4(PlaneNormal, -lcDot(PlaneNormal, Center));
if (!lcLineSegmentPlaneIntersection(&Intersection, CurrentStart, CurrentEnd, Plane) || !lcLineSegmentPlaneIntersection(&MoveStart, MouseDownStart, MouseDownEnd, Plane))
break;
}
ActiveModel->UpdatePanTool(mCamera, MoveStart - Intersection);
}
UpdatePan(mMouseX, mMouseY);
break;
case lcTrackTool::OrbitX:

7
common/lc_view.h
View file

@ -227,6 +227,9 @@ public:
void EndDrag(bool Accept);
void UpdateCursor();
void StartPanGesture();
void UpdatePanGesture(int dx, int dy);
void EndPanGesture(bool Accept);
void StartOrbitTracking();
void CancelTrackingOrClearSelection();
@ -298,6 +301,8 @@ protected:
void StartTracking(lcTrackButton TrackButton);
void StopTracking(bool Accept);
void OnButtonDown(lcTrackButton TrackButton);
void StartPan(int x, int y);
void UpdatePan(int x, int y);
lcViewWidget* mWidget = nullptr;
int mWidth = 1;
@ -321,6 +326,8 @@ protected:
bool mTrackToolFromOverlay;
lcVector3 mMouseDownPosition;
PieceInfo* mMouseDownPiece;
int mPanX = 0;
int mPanY = 0;
QImage mRenderImage;
std::unique_ptr<QOpenGLFramebufferObject> mRenderFramebuffer;

25
common/lc_viewwidget.cpp
View file

@ -217,6 +217,31 @@ void lcViewWidget::mouseMoveEvent(QMouseEvent* MouseEvent)
void lcViewWidget::wheelEvent(QWheelEvent* WheelEvent)
{
if (WheelEvent->source() == Qt::MouseEventSynthesizedBySystem)
{
switch (WheelEvent->phase())
{
case Qt::NoScrollPhase:
break;
case Qt::ScrollBegin:
mView->StartPanGesture();
WheelEvent->accept();
return;
case Qt::ScrollUpdate:
case Qt::ScrollMomentum:
mView->UpdatePanGesture(WheelEvent->pixelDelta().x(), -WheelEvent->pixelDelta().y());
WheelEvent->accept();
return;
case Qt::ScrollEnd:
mView->EndPanGesture(true);
WheelEvent->accept();
return;
}
}
if (WheelEvent->angleDelta().y() == 0)
{
WheelEvent->ignore();