Added initial cut at support for osgVolume in .ive format.

2009-05-05 18:34:44 +00:00
parent 1515b8d357
commit 2b09b0dffa
19 changed files with 821 additions and 6 deletions
--- a/src/osgPlugins/ive/VolumeCompositeLayer.cpp
+++ b/src/osgPlugins/ive/VolumeCompositeLayer.cpp
@@ -0,0 +1,79 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include "Exception.h"
+#include "VolumeCompositeLayer.h"
+#include "VolumeLayer.h"
+#include "Layer.h"
+
+using namespace ive;
+
+void VolumeCompositeLayer::write(DataOutputStream* out)
+{
+    // Write Layer's identification.
+    out->writeInt(IVEVOLUMECOMPOSITELAYER);
+
+    // If the osg class is inherited by any other class we should also write this to file.
+    osgVolume::Layer*  layer = dynamic_cast<osgVolume::Layer*>(this);
+    if  (layer)
+        ((ive::VolumeLayer*)(layer))->write(out);
+    else
+        throw Exception("VolumeCompositeLayer::write(): Could not cast this osgVolume::CompositeLayer to an osgVolume::Layer.");
+
+    out->writeUInt(getNumLayers());
+    for(unsigned int i=0; i<getNumLayers(); ++i)
+    {
+        if(getLayer(i))
+        {
+            out->writeBool(true);
+            out->writeVolumeLayer(getLayer(i));
+        }
+        else
+        {
+            out->writeBool(false);
+            out->writeString(getFileName(i));
+        }
+    }
+}
+
+void VolumeCompositeLayer::read(DataInputStream* in)
+{
+    // Peek on Layer's identification.
+    int id = in->peekInt();
+    if (id != IVEVOLUMECOMPOSITELAYER)
+        throw Exception("VolumeCompositeLayer::read(): Expected CompositeLayer identification.");
+    
+    // Read Layer's identification.
+    id = in->readInt();
+
+    // If the osg class is inherited by any other class we should also read this from file.
+    osgVolume::Layer*  layer = dynamic_cast<osgVolume::Layer*>(this);
+    if (layer)
+        ((ive::VolumeLayer*)(layer))->read(in);
+    else
+        throw Exception("VolumeCompositeLayer::read(): Could not cast this osgVolume::Layer to an osg::Group.");
+
+    unsigned int numLayers = in->readUInt();
+    for(unsigned int i=0; i<numLayers; ++i)
+    {
+        bool readInlineLayer = in->readBool();
+        if (readInlineLayer)
+        {
+            addLayer(in->readVolumeLayer());
+        }
+        else
+        {
+            setFileName(i, in->readString());
+        }
+    }
+}