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feat: add option to avoid reset transform when switching between images

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It's not enabled for now so it's not available to end-users.
This commit is contained in:
Gary Wang
2023-07-09 15:39:59 +08:00
parent f96da17e78
commit d4ded92734
6 changed files with 44 additions and 1 deletions
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19
app/graphicsview.cpp
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@ -121,7 +121,9 @@ qreal GraphicsView::scaleFactor() const
void GraphicsView::resetTransform()
{
QGraphicsView::resetTransform();
if (!m_avoidResetTransform) {
QGraphicsView::resetTransform();
}
}
void GraphicsView::zoomView(qreal scaleFactor)
@ -197,6 +199,11 @@ void GraphicsView::fitByOrientation(Qt::Orientation ori, bool scaleDownOnly)
void GraphicsView::displayScene()
{
if (m_avoidResetTransform) {
emit navigatorViewRequired(!isThingSmallerThanWindowWith(transform()), transform());
return;
}
if (isSceneBiggerThanView()) {
fitInView(sceneRect(), Qt::KeepAspectRatio);
}
@ -219,6 +226,16 @@ void GraphicsView::setEnableAutoFitInView(bool enable)
m_enableFitInView = enable;
}
bool GraphicsView::avoidResetTransform() const
{
return m_avoidResetTransform;
}
void GraphicsView::setAvoidResetTransform(bool avoidReset)
{
m_avoidResetTransform = avoidReset;
}
inline double zeroOrOne(double number)
{
return qFuzzyIsNull(number) ? 0 : (number > 0 ? 1 : -1);