From dfa406046571d05880e6096543b9531e5f59c916 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Wed, 9 Jan 2008 16:56:31 +0000
Subject: [PATCH] Adding missing files

---
 src/osgPlugins/ive/HeightFieldLayer.cpp | 83 +++++++++++++++++++++++++
 src/osgPlugins/ive/HeightFieldLayer.h   | 32 ++++++++++
 2 files changed, 115 insertions(+)
 create mode 100644 src/osgPlugins/ive/HeightFieldLayer.cpp
 create mode 100644 src/osgPlugins/ive/HeightFieldLayer.h

diff --git a/src/osgPlugins/ive/HeightFieldLayer.cpp b/src/osgPlugins/ive/HeightFieldLayer.cpp
new file mode 100644
index 000000000..56a373034
--- /dev/null
+++ b/src/osgPlugins/ive/HeightFieldLayer.cpp
@@ -0,0 +1,83 @@
+/* -*-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 "HeightFieldLayer.h"
+#include "Layer.h"
+
+#include <osgDB/ReadFile>
+
+using namespace ive;
+
+void HeightFieldLayer::write(DataOutputStream* out)
+{
+    // Write Layer's identification.
+    out->writeInt(IVEHEIGHTFIELDLAYER);
+
+    // If the osg class is inherited by any other class we should also write this to file.
+    osgTerrain::Layer*  layer = dynamic_cast<osgTerrain::Layer*>(this);
+    if  (layer)
+        ((ive::Layer*)(layer))->write(out);
+    else
+        throw Exception("HeightFieldLayer::write(): Could not cast this osgLayer::HeightFieldLayer to an osgTerrain::Layer.");
+
+
+    if (getFileName().empty() && getHeightField())
+    {
+        // using inline heightfield
+        out->writeBool(true);        
+        out->writeShape(getHeightField());
+    }
+    else
+    {
+        // using external heightfield file
+        out->writeBool(false);        
+        out->writeString(getFileName());        
+    }
+
+}
+
+void HeightFieldLayer::read(DataInputStream* in)
+{
+    // Peek on Layer's identification.
+    int id = in->peekInt();
+    if (id != IVEHEIGHTFIELDLAYER)
+        throw Exception("HeightFieldLayer::read(): Expected HeightFieldLayer 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.
+    osgTerrain::Layer*  layer = dynamic_cast<osgTerrain::Layer*>(this);
+    if (layer)
+        ((ive::Layer*)(layer))->read(in);
+    else
+        throw Exception("HeightFieldLayer::read(): Could not cast this osgLayer::Layer to an osg::Group.");
+
+
+    bool useInlineHeightField = in->readBool();
+    
+    if (useInlineHeightField)
+    {
+        osg::Shape* shape = in->readShape();
+        setHeightField(dynamic_cast<osg::HeightField*>(shape));
+    }
+    else
+    {
+        std::string filename = in->readString();
+        setFileName(filename);
+        
+        setHeightField(osgDB::readHeightFieldFile(filename,in->getOptions()));
+    }
+
+}
diff --git a/src/osgPlugins/ive/HeightFieldLayer.h b/src/osgPlugins/ive/HeightFieldLayer.h
new file mode 100644
index 000000000..3c273f016
--- /dev/null
+++ b/src/osgPlugins/ive/HeightFieldLayer.h
@@ -0,0 +1,32 @@
+/* -*-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.
+*/
+
+#ifndef IVE_HEIGHTFIELDLAYER
+#define IVE_HEIGHTFIELDLAYER 1
+
+#include <osgTerrain/Terrain>
+#include "ReadWrite.h"
+
+namespace ive
+{
+
+class HeightFieldLayer : public osgTerrain::HeightFieldLayer, public ReadWrite
+{
+public:
+	void write(DataOutputStream* out);
+	void read(DataInputStream* in);
+};
+
+}
+
+#endif