diff OrthancStone/Sources/Scene2DViewport/LayerHolder.h @ 1606:874e178f34e9

- ViewportController now has weak ptr to Viewport - Measuring tools + related commands and all trackers now store only a weak_ptr to the Viewport and lock() on demand for usage - LayerHolder and FixedPoint aligner store only a weak_ptr to the Viewport, too - Fixed float/double warning in GrayscaleWindowingSceneTracker
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 28 Oct 2020 20:14:34 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
line wrap: on
line diff
--- a/OrthancStone/Sources/Scene2DViewport/LayerHolder.h	Wed Oct 28 20:06:55 2020 +0100
+++ b/OrthancStone/Sources/Scene2DViewport/LayerHolder.h	Wed Oct 28 20:14:34 2020 +0100
@@ -23,6 +23,8 @@
 
 #include "PredeclaredTypes.h"
 
+#include "../Viewport/IViewport.h"
+
 #include <boost/noncopyable.hpp>
 #include <boost/weak_ptr.hpp>
 #include <boost/shared_ptr.hpp>
@@ -44,7 +46,7 @@
     performed at this time
     */
     LayerHolder(
-      boost::shared_ptr<IViewport> viewport,
+      boost::weak_ptr<IViewport> viewport,
       int polylineLayerCount, int textLayerCount, int infoTextCount = 0);
 
     /**
@@ -95,6 +97,13 @@
     //TextSceneLayer* GetTextLayer(int index = 0);
 
   private:
+
+    /**
+    This will return a scoped lock to the viewport.
+    If the viewport does not exist anymore, then nullptr is returned.
+    */
+    IViewport::ILock* GetViewportLock();
+
     int GetPolylineLayerIndex(int index = 0);
     int GetTextLayerIndex(int index = 0);
     int GetInfoTextLayerIndex(int index = 0);
@@ -102,7 +111,7 @@
     int textLayerCount_;
     int polylineLayerCount_;
     int infoTextCount_;
-    boost::shared_ptr<IViewport> viewport_;
+    boost::weak_ptr<IViewport> viewport_;
     int baseLayerIndex_;
   };
 }