Make modifications through the style dock much faster

nyalldawson · nyalldawson · commit a3331f138510 · 2016-10-06T21:49:22.000+10:00
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)
diff --git a/src/app/qgslayerstylingwidget.cpp b/src/app/qgslayerstylingwidget.cpp
@@ -262,8 +262,7 @@ void QgsLayerStylingWidget::apply()
   {
     emit styleChanged( mCurrentLayer );
     QgsProject::instance()->setDirty( true );
-    mMapCanvas->clearCache();
-    mMapCanvas->refresh();
+    mCurrentLayer->triggerRepaint();
   }
   connect( mCurrentLayer, SIGNAL( styleChanged() ), this, SLOT( updateCurrentWidgetLayer() ) );
 }

Original file line number	Diff line number	Diff line change
`@@ -262,8 +262,7 @@ void QgsLayerStylingWidget::apply()`
`262`	`262`	`{`
`263`	`263`	`emit styleChanged( mCurrentLayer );`
`264`	`264`	`QgsProject::instance()->setDirty( true );`
`265`		`- mMapCanvas->clearCache();`
`266`		`- mMapCanvas->refresh();`
	`265`	`+ mCurrentLayer->triggerRepaint();`
`267`	`266`	`}`
`268`	`267`	`connect( mCurrentLayer, SIGNAL( styleChanged() ), this, SLOT( updateCurrentWidgetLayer() ) );`
`269`	`268`	`}`