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fix: always rotate according to current viewport state

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This commit is contained in:
Gary Wang
2021-03-29 22:43:37 +08:00
parent e1324d901c
commit 622938ac23
3 changed files with 15 additions and 8 deletions
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19
app/graphicsview.cpp
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@ -133,6 +133,19 @@ void GraphicsView::zoomView(qreal scaleFactor)
emit navigatorViewRequired(!isThingSmallerThanWindowWith(transform()), transform());
}
// This is always according to user's view.
// the direction of the rotation will NOT be clockwise because the y-axis points downwards.
void GraphicsView::rotateView(bool clockwise)
{
resetScale();
QTransform tf(0, clockwise ? 1 : -1, 0,
clockwise ? -1 : 1, 0, 0,
0, 0, 1);
tf = transform() * tf;
setTransform(tf);
}
void GraphicsView::flipView(bool horizontal)
{
QTransform tf(horizontal ? -1 : 1, 0, 0,
@ -151,12 +164,6 @@ void GraphicsView::resetScale()
emit navigatorViewRequired(!isThingSmallerThanWindowWith(transform()), transform());
}
void GraphicsView::rotateView(qreal rotateAngel)
{
resetScale();
rotate(rotateAngel);
}
void GraphicsView::fitInView(const QRectF &rect, Qt::AspectRatioMode aspectRadioMode)
{
QGraphicsView::fitInView(rect, aspectRadioMode);