From 8303f03b24ba7258a1da1ba075bf0325e0bc3db0 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 18 Aug 2008 15:06:41 +0000
Subject: [PATCH] Added .ive support for BlendEquation

---
 src/osgPlugins/ive/BlendEquation.cpp    | 61 +++++++++++++++++++++++++
 src/osgPlugins/ive/BlendEquation.h      | 15 ++++++
 src/osgPlugins/ive/CMakeLists.txt       |  1 +
 src/osgPlugins/ive/DataInputStream.cpp  |  5 ++
 src/osgPlugins/ive/DataOutputStream.cpp |  4 ++
 src/osgPlugins/ive/ReadWrite.h          |  1 +
 6 files changed, 87 insertions(+)
 create mode 100644 src/osgPlugins/ive/BlendEquation.cpp
 create mode 100644 src/osgPlugins/ive/BlendEquation.h

diff --git a/src/osgPlugins/ive/BlendEquation.cpp b/src/osgPlugins/ive/BlendEquation.cpp
new file mode 100644
index 000000000..394ebb9c7
--- /dev/null
+++ b/src/osgPlugins/ive/BlendEquation.cpp
@@ -0,0 +1,61 @@
+/**********************************************************************
+ *
+ *    FILE:            BlendEquation.cpp
+ *
+ *    DESCRIPTION:    Read/Write osg::BlendEquation in binary format to disk.
+ *
+ *    CREATED BY:        Auto generated by iveGenerated
+ *                    and later modified by Rune Schmidt Jensen.
+ *
+ *    HISTORY:        Created 21.3.2003
+ *
+ *    Copyright 2003 VR-C
+ **********************************************************************/
+
+#include "Exception.h"
+#include "BlendEquation.h"
+#include "Object.h"
+
+using namespace ive;
+
+void BlendEquation::write(DataOutputStream* out){
+
+    // Write BlendEquation's identification.
+    out->writeInt(IVEBLENDEQUATION);
+
+    // If the osg class is inherited by any other class we should also write this to file.
+    osg::Object*  obj = dynamic_cast<osg::Object*>(this);
+    if(obj){
+        ((ive::Object*)(obj))->write(out);
+    }
+    else
+        throw Exception("BlendEquation::write(): Could not cast this osg::BlendEquation to an osg::Object.");
+    // Write BlendEquation's properties.
+
+    // Write source
+    out->writeInt(getEquation());
+}
+
+void BlendEquation::read(DataInputStream* in){
+    // Peek on BlendEquation's identification.
+    int id = in->peekInt();
+    if(id == IVEBLENDEQUATION){
+        // Read BlendEquation's identification.
+        id = in->readInt();
+        // If the osg class is inherited by any other class we should also read this from file.
+        osg::Object*  obj = dynamic_cast<osg::Object*>(this);
+        if(obj){
+            ((ive::Object*)(obj))->read(in);
+        }
+        else
+            throw Exception("BlendEquation::read(): Could not cast this osg::BlendEquation to an osg::Object.");
+        // Read BlendEquation's properties
+
+        // Read source
+        setEquation(osg::BlendEquation::Equation(in->readInt()));
+
+    }
+    else{
+        throw Exception("BlendEquation::read(): Expected BlendEquation identification.");
+    }
+}
diff --git a/src/osgPlugins/ive/BlendEquation.h b/src/osgPlugins/ive/BlendEquation.h
new file mode 100644
index 000000000..d883819d2
--- /dev/null
+++ b/src/osgPlugins/ive/BlendEquation.h
@@ -0,0 +1,15 @@
+#ifndef IVE_BLENDEQUATION
+#define IVE_BLENDEQUATION 1
+
+#include <osg/BlendEquation>
+#include "ReadWrite.h"
+
+namespace ive{
+class BlendEquation : public osg::BlendEquation, public ReadWrite {
+public:
+	void write(DataOutputStream* out);
+	void read(DataInputStream* in);
+};
+}
+
+#endif
diff --git a/src/osgPlugins/ive/CMakeLists.txt b/src/osgPlugins/ive/CMakeLists.txt
index 3735c5bf3..5cda86523 100644
--- a/src/osgPlugins/ive/CMakeLists.txt
+++ b/src/osgPlugins/ive/CMakeLists.txt
@@ -10,6 +10,7 @@ SET(TARGET_SRC
     AzimSector.cpp
     Billboard.cpp
     BlendColor.cpp
+    BlendEquation.cpp
     BlendFunc.cpp
     BlinkSequence.cpp
     Camera.cpp
diff --git a/src/osgPlugins/ive/DataInputStream.cpp b/src/osgPlugins/ive/DataInputStream.cpp
index 7ea90555d..1c65bd560 100644
--- a/src/osgPlugins/ive/DataInputStream.cpp
+++ b/src/osgPlugins/ive/DataInputStream.cpp
@@ -21,6 +21,7 @@
 #include "BlendColor.h"
 #include "Stencil.h"
 #include "BlendFunc.h"
+#include "BlendEquation.h"
 #include "Depth.h"
 #include "Material.h"
 #include "CullFace.h"
@@ -1097,6 +1098,10 @@ osg::StateAttribute* DataInputStream::readStateAttribute()
         attribute = new osg::BlendFunc();
         ((ive::BlendFunc*)(attribute))->read(this);
     }
+    else if(attributeID == IVEBLENDEQUATION){
+        attribute = new osg::BlendEquation();
+        ((ive::BlendEquation*)(attribute))->read(this);
+    }
     else if(attributeID == IVEDEPTH){
         attribute = new osg::Depth();
         ((ive::Depth*)(attribute))->read(this);
diff --git a/src/osgPlugins/ive/DataOutputStream.cpp b/src/osgPlugins/ive/DataOutputStream.cpp
index 61814c10f..011e3d826 100644
--- a/src/osgPlugins/ive/DataOutputStream.cpp
+++ b/src/osgPlugins/ive/DataOutputStream.cpp
@@ -22,6 +22,7 @@
 #include "BlendColor.h"
 #include "Stencil.h"
 #include "BlendFunc.h"
+#include "BlendEquation.h"
 #include "Material.h"
 #include "CullFace.h"
 #include "ColorMask.h"
@@ -723,6 +724,9 @@ void DataOutputStream::writeStateAttribute(const osg::StateAttribute* attribute)
         else if(dynamic_cast<const osg::BlendFunc*>(attribute)){
             ((ive::BlendFunc*)(attribute))->write(this);
         }
+        else if(dynamic_cast<const osg::BlendEquation*>(attribute)){
+            ((ive::BlendEquation*)(attribute))->write(this);
+        }
         else if(dynamic_cast<const osg::Depth*>(attribute)){
             ((ive::Depth*)(attribute))->write(this);
         }
diff --git a/src/osgPlugins/ive/ReadWrite.h b/src/osgPlugins/ive/ReadWrite.h
index c93db9fbe..b58ace510 100644
--- a/src/osgPlugins/ive/ReadWrite.h
+++ b/src/osgPlugins/ive/ReadWrite.h
@@ -72,6 +72,7 @@ namespace ive {
 #define IVESTENCIL                      0x00000131
 #define IVESTENCILTWOSIDED              0x00000132
 #define IVECOLORMASK                    0x00000133
+#define IVEBLENDEQUATION                0x00000134
 #define IVELIGHTMODEL                   0x00001121
 #define IVECLIPPLANE                    0x00001122
 #define IVEFRONTFACE                    0x00001123