Automatically trigger annotation layer repaint when contents change

qgis · Aug 27, 2020 · 5849ddd · 5849ddd
1 parent 69665cd
commit 5849ddd
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Showing 2 changed files with 17 additions and 1 deletion.
diff --git a/src/core/annotations/qgsannotationlayer.cpp b/src/core/annotations/qgsannotationlayer.cpp
@@ -47,6 +47,9 @@ QString QgsAnnotationLayer::addItem( QgsAnnotationItem *item )
 {
   const QString uuid = QUuid::createUuid().toString();
   mItems.insert( uuid, item );
+
+  triggerRepaint();
+
   return uuid;
 }
 
@@ -56,13 +59,24 @@ bool QgsAnnotationLayer::removeItem( const QString &id )
     return false;
 
   delete mItems.take( id );
+
+  triggerRepaint();
+
   return true;
 }
 
 void QgsAnnotationLayer::clear()
 {
   qDeleteAll( mItems );
   mItems.clear();
+
+  triggerRepaint();
+}
+
+void QgsAnnotationLayer::setOpacity( double opacity )
+{
+  mOpacity = opacity;
+  triggerRepaint();
 }
 
 QgsAnnotationLayer *QgsAnnotationLayer::clone() const
@@ -139,6 +153,8 @@ bool QgsAnnotationLayer::readXml( const QDomNode &layerNode, QgsReadWriteContext
   QString errorMsg;
   readSymbology( layerNode, errorMsg, context );
 
+  triggerRepaint();
+
   return mValid;
 }
 

diff --git a/src/core/annotations/qgsannotationlayer.h b/src/core/annotations/qgsannotationlayer.h
@@ -109,7 +109,7 @@ class CORE_EXPORT QgsAnnotationLayer : public QgsMapLayer
      * and 1.0 (fully opaque).
      * \see opacity()
      */
-    void setOpacity( double opacity ) { mOpacity = opacity; }
+    void setOpacity( double opacity );
 
     /**
      * Returns the opacity for the annotation layer, where opacity is a value between 0 (totally transparent)