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Zoom refractor

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This commit is contained in:
Dušan Poizl
2020-05-16 22:46:57 +02:00
parent 3fb3b2a760
commit 03a3b71790
2 changed files with 16 additions and 17 deletions
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imagescrollareagl.cpp
+15 -17
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@@ -302,31 +302,29 @@ void ImageScrollAreaGL::mousePressEvent(QMouseEvent *event)
void ImageScrollAreaGL::wheelEvent(QWheelEvent *event)
{
if(event->angleDelta().y() > 0)
zoomIn();
else
zoomOut();
if(event->angleDelta().y() != 0)
zoom(event->angleDelta().y() / 1200.0f);
}
void ImageScrollAreaGL::zoom(float delta)
{
if((m_scale >= 8.0f && delta > 0) || (m_scale <= 0.1f && delta < 0))return;
m_scale += delta;
m_imageWidget->blockRepaint(true);
m_imageWidget->setScale(m_scale);
updateScrollbars(true);
m_imageWidget->blockRepaint(false);
}
void ImageScrollAreaGL::zoomIn()
{
if(m_scale >= 8.0f)return;
m_scale += 0.1f;
m_imageWidget->blockRepaint(true);
m_imageWidget->setScale(m_scale);
updateScrollbars(true);
m_imageWidget->blockRepaint(false);
zoom(0.1f);
}
void ImageScrollAreaGL::zoomOut()
{
if(m_scale <= 0.1f)return;
m_scale -= 0.1f;
m_imageWidget->blockRepaint(true);
m_imageWidget->setScale(m_scale);
updateScrollbars(true);
m_imageWidget->blockRepaint(false);
//m_imageWidget->repaint();
zoom(-0.1f);
}
void ImageScrollAreaGL::bestFit()