From 68834d3f578b8e91147bcb20f75bf8d7adcf5bd7 Mon Sep 17 00:00:00 2001
From: sln <sln@opencascade.com>
Date: Mon, 24 Dec 2007 13:57:27 +0000
Subject: [PATCH] removeItem method redefined for calling corresponding
 itemRemoved methods of CanvasViews (IPAL18424)

---
 src/QxGraph/QxGraph_Canvas.cxx | 28 +++++++++++++++++++++++++++-
 src/QxGraph/QxGraph_Canvas.h   |  9 +++++++--
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/src/QxGraph/QxGraph_Canvas.cxx b/src/QxGraph/QxGraph_Canvas.cxx
index 8eb1afe63..f39c5f6b4 100644
--- a/src/QxGraph/QxGraph_Canvas.cxx
+++ b/src/QxGraph/QxGraph_Canvas.cxx
@@ -27,6 +27,7 @@
 #include <SUIT_ResourceMgr.h>
 
 #include <qobjectlist.h>
+#include <QxGraph_CanvasView.h>
 
 /*!
   Constructor
@@ -67,8 +68,33 @@ QxGraph_Canvas::~QxGraph_Canvas()
 */
 void QxGraph_Canvas::addView(QCanvasView* theView)
 {
+  myViews.append( theView );
   QCanvas::addView(theView);
-  theView->setPaletteBackgroundColor(backgroundColor().light(120));
+  theView->setPaletteBackgroundColor(backgroundColor().light(120)); 
+}
+
+/*!
+  Remove view
+*/
+void QxGraph_Canvas::removeView( QCanvasView* theView )
+{
+  myViews.remove( theView );
+}
+
+/*!
+  Remove item
+*/
+void QxGraph_Canvas::removeItem( QCanvasItem* theItem )
+{
+  QValueList< QCanvasView* >::iterator anIter;
+  for ( anIter = myViews.begin(); anIter != myViews.end(); ++anIter )
+  {
+    QxGraph_CanvasView* aView = dynamic_cast<QxGraph_CanvasView*>( *anIter );
+    if ( aView )
+      aView->itemRemoved( theItem );
+  }
+
+  QCanvas::removeItem( theItem );
 }
 
 /*!
diff --git a/src/QxGraph/QxGraph_Canvas.h b/src/QxGraph/QxGraph_Canvas.h
index a41ea829e..9dd6e2c10 100644
--- a/src/QxGraph/QxGraph_Canvas.h
+++ b/src/QxGraph/QxGraph_Canvas.h
@@ -38,13 +38,18 @@ class QXGRAPH_EXPORT QxGraph_Canvas : public QCanvas {
   QxGraph_Canvas(SUIT_ResourceMgr*);
   virtual ~QxGraph_Canvas();
 
-  void addView(QCanvasView* theView);
+  virtual void addView(QCanvasView* theView);
+  virtual void removeView(QCanvasView*);
 
   QPtrList<QxGraph_Prs> getPrsList() const { return myPrsList; }
   QxGraph_Prs*          getPrs(int theIndex = 0);
   void                  addPrs(QxGraph_Prs* thePrs) { myPrsList.append(thePrs); }
 
- private:
+  virtual void removeItem( QCanvasItem* );
+
+private:
+
+  QValueList< QCanvasView* > myViews;
   QPtrList<QxGraph_Prs> myPrsList;
 
 };
-- 
2.39.2