Use a clearer marker for main canvas position in view windows

python/gui/qgsvertexmarker.sip

@@ -17,23 +17,24 @@ class QgsVertexMarker : QgsMapCanvasItem
       ICON_CIRCLE
     };
 
-    QgsVertexMarker( QgsMapCanvas* mapCanvas /TransferThis/ );
+    QgsVertexMarker( QgsMapCanvas *mapCanvas /TransferThis/ );
 
-    void setCenter( const QgsPoint& point );
+    void setCenter( const QgsPoint &point );
 
     void setIconType( int iconType );
 
     void setIconSize( int iconSize );
-
+    void setColor( const QColor &color );
-    void setColor( const QColor& color );
+    QColor color() const;
+    void setFillColor( const QColor &color );
+    QColor fillColor() const;
 
     void setPenWidth( int width );
 
-    void paint( QPainter* p );
+    void paint( QPainter *p );
 
     QRectF boundingRect() const;
 
     virtual void updatePosition();
-
 };
 

src/app/qgsmapcanvasdockwidget.cpp

@@ -48,6 +48,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
   mXyMarker->setIconType( QgsVertexMarker::ICON_CIRCLE );
   mXyMarker->setIconSize( 6 );
   mXyMarker->setColor( QColor( 30, 30, 30, 225 ) );
+  mXyMarker->setFillColor( QColor( 255, 255, 255, 225 ) );
   mPanTool = new QgsMapToolPan( mMapCanvas );
   mMapCanvas->setMapTool( mPanTool );
 

src/gui/qgsvertexmarker.cpp

@@ -20,12 +20,7 @@
 
 QgsVertexMarker::QgsVertexMarker( QgsMapCanvas *mapCanvas )
   : QgsMapCanvasItem( mapCanvas )
-{
+{}
-  mIconSize = 10;
-  mIconType = ICON_X;
-  mColor = QColor( 255, 0, 0 );
-  mPenWidth = 1;
-}
 
 void QgsVertexMarker::setIconType( int type )
 {
@@ -47,6 +42,13 @@ void QgsVertexMarker::setCenter( const QgsPoint &point )
 void QgsVertexMarker::setColor( const QColor &color )
 {
   mColor = color;
+  update();
+}
+
+void QgsVertexMarker::setFillColor( const QColor &color )
+{
+  mFillColor = color;
+  update();
 }
 
 void QgsVertexMarker::setPenWidth( int width )
@@ -61,6 +63,8 @@ void QgsVertexMarker::paint( QPainter *p )
   QPen pen( mColor );
   pen.setWidth( mPenWidth );
   p->setPen( pen );
+  QBrush brush( mFillColor );
+  p->setBrush( brush );
 
   switch ( mIconType )
   {

src/gui/qgsvertexmarker.h

@@ -47,8 +47,39 @@ class GUI_EXPORT QgsVertexMarker : public QgsMapCanvasItem
 
     void setIconSize( int iconSize );
 
+    /**
+     * Sets the stroke \a color for the marker.
+     * @see color()
+     * @see setFillColor()
+     */
     void setColor( const QColor &color );
 
+    /**
+     * Returns the stroke color for the marker.
+     * @see setColor()
+     * @see fillColor()
+     * @note added in QGIS 3.0
+     */
+    QColor color() const { return mColor; }
+
+    /**
+     * Sets the fill \a color for the marker. This setting only
+     * applies to some icon types.
+     * @note added in QGIS 3.0
+     * @see fillColor()
+     * @see setColor()
+     */
+    void setFillColor( const QColor &color );
+
+    /**
+     * Returns the fill \a color for the marker. This setting only
+     * applies to some icon types.
+     * @note added in QGIS 3.0
+     * @see setFillColor()
+     * @see color()
+     */
+    QColor fillColor() const { return mFillColor; }
+
     void setPenWidth( int width );
 
     void paint( QPainter *p ) override;
@@ -57,22 +88,26 @@ class GUI_EXPORT QgsVertexMarker : public QgsMapCanvasItem
 
     virtual void updatePosition() override;
 
-  protected:
+  private:
 
     //! icon to be shown
-    int mIconType;
+    int mIconType = ICON_X;
 
     //! size
-    int mIconSize;
+    int mIconSize = 10;
 
     //! coordinates of the point in the center
     QgsPoint mCenter;
 
     //! color of the marker
-    QColor mColor;
+    QColor mColor = QColor( 255, 0, 0 );
 
     //! pen width
-    int mPenWidth;
+    int mPenWidth = 1;
+
+    //! Fill color
+    QColor mFillColor = QColor( 0, 0, 0, 0 );
+
 };
 
 #endif