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Do wheel zoom relative to mouse position.

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This commit is contained in:
Luis Lucas
2014-04-05 04:49:10 +01:00
parent 5dcfce6db7
commit b2ccbfe820
4 changed files with 47 additions and 11 deletions
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source/app/ViewArea.cpp
+3 -3
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@@ -107,7 +107,7 @@ Double ViewArea::getZoomFactor()
// return QSize( w, h );
// }
Void ViewArea::zoomChangeEvent(Double factor)
Void ViewArea::zoomChangeEvent(Double factor, QPoint center )
{
Double zoomFactor;
Double maxZoom = 100.0;
@@ -128,7 +128,7 @@ Void ViewArea::zoomChangeEvent(Double factor)
zoomFactor = maxZoom;
setZoomFactor( zoomFactor );
emit zoomFactorChanged(factor);
emit zoomFactorChanged(factor, center);
}
@@ -528,7 +528,7 @@ void ViewArea::wheelEvent( QWheelEvent *event )
else
factor=0.8;
zoomChangeEvent( factor );
zoomChangeEvent( factor , event->pos() );
}
void ViewArea::mousePressEvent( QMouseEvent *event )