Add Indicator for PositionLocked state

src/Mod/TechDraw/Gui/QGCustomImage.cpp

@@ -36,7 +36,7 @@
 
 using namespace TechDrawGui;
 
-QGCustomImage::QGCustomImage()
+QGCustomImage::QGCustomImage() 
 {
     setCacheMode(QGraphicsItem::NoCache);
     setAcceptHoverEvents(false);
@@ -74,6 +74,12 @@ bool QGCustomImage::load(QString fileSpec)
     return(success);
 }
 
+QSize QGCustomImage::imageSize(void)
+{
+    QSize result = m_px.size();
+    return result;
+}
+
 void QGCustomImage::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
     QStyleOptionGraphicsItem myOption(*option);
     myOption.state &= ~QStyle::State_Selected;