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Make modifications through the style dock much faster

Before any change in the style dock would invalidate the cache
for ALL map layers, resulting in every layer being redrawn.

Now only the affected layer is redrawn and all others just use
the cached render.

(cherry-picked from c6436f8)
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nyalldawson committed Oct 6, 2016
1 parent 9e736d1 commit 6b9ea84e25012370626b1cc16f16e6799c09a5d2
Showing with 1 addition and 2 deletions.
  1. +1 −2 src/app/qgslayerstylingwidget.cpp
@@ -267,8 +267,7 @@ void QgsLayerStylingWidget::apply()
{
emit styleChanged( mCurrentLayer );
QgsProject::instance()->setDirty( true );
mMapCanvas->clearCache();
mMapCanvas->refresh();
mCurrentLayer->triggerRepaint();
}
connect( mCurrentLayer, SIGNAL( styleChanged() ), this, SLOT( updateCurrentWidgetLayer() ) );
}

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