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Only update CAD canvas item geometry when necessary
The call to setRect() in paint() handler was triggering canvas redraws
all the time, keeping one CPU core busy nearly all the time when
CAD dock was active.
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wonder-sk authored and 3nids committed Sep 12, 2017
1 parent 684e1da commit 407baf0
Showing 1 changed file with 2 additions and 1 deletion.
@@ -42,7 +42,8 @@ void QgsAdvancedDigitizingCanvasItem::paint( QPainter* painter )

QgsRectangle mapRect = mMapCanvas->extent();
setRect( mapRect );
if ( rect() != mapRect )
setRect( mapRect );

int nPoints = mAdvancedDigitizingDockWidget->pointsCount();
if ( !nPoints )

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