Added plugin function to take viewer snapshot.

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@10792 383ad7c9-94d9-4d36-a494-682f7c89f535

BasePlugin/PluginFunctions.cc

@@ -1028,6 +1028,20 @@ void flyTo (const ACG::Vec3d &_center, bool _move_back, double _time) {
 }
 
 
+/// Take a snapshot of a viewer
+void viewerSnapshot(int _viewer, QImage& _image, int _width, int _height, bool _alpha,
+                    bool _hideCoordsys, int _samples) {
+    
+  if ( _viewer == ACTIVE_VIEWER ) {
+    examiner_widgets_[activeExaminer_]->snapshot(_image, _width, _height, _alpha, _hideCoordsys, _samples);
+  } else if ( _viewer == ALL_VIEWERS )
+    std::cerr << "Please select viewer to get snapshot!" << std::endl;
+  else if ( ( _viewer >= 0 ) && _viewer < (int)examiner_widgets_.size() )
+    examiner_widgets_[_viewer]->snapshot(_image, _width, _height, _alpha, _hideCoordsys, _samples);
+  else
+    std::cerr << "Requested illegal viewer for snapshot!!" << std::endl;
+}
+
 
 
 // ===============================================================================

BasePlugin/PluginFunctionsViewControls.hh

@@ -404,6 +404,27 @@ DLLEXPORT
 void flyTo (const ACG::Vec3d &_center, bool _move_back = true, double _time=1000.0);
 
 
+/** @} */
+
+//=======================================
+// Provide snapshot functions
+    /** @name Snapshots
+    * @{ */
+//=======================================
+
+/**  Fly to point and keep viewing direction (animated).
+ * @param _viewer   Viewer id
+ * @param _image    An image to store pixel data in
+ * @param _width    Image width 
+ * @param _height   Image height
+ * @param _alpha    Make background transparent
+ * @param _hideCoordsys   Hide coordsys node
+ * @param _samples  Number of samples (multisampling)
+ */
+DLLEXPORT
+void viewerSnapshot(int _viewer, QImage& _image, int _width = 0, int _height = 0,
+                    bool _alpha = false, bool _hideCoordsys = false, int _samples = 1);
+
 /** @} */
 
 }