Added support for glLineWidth via an osg::LineWidth StateAttribute.

src/osg/LineWidth.cpp

@@ -0,0 +1,27 @@
+#include <osg/GL>
+#include <osg/LineWidth>
+#include <osg/Notify>
+
+using namespace osg;
+
+
+LineWidth::LineWidth()
+{
+    _width = 1.0f;
+}
+
+
+LineWidth::~LineWidth()
+{
+}
+
+void LineWidth::setWidth( const float width )
+{
+    _width = width;
+}
+
+void LineWidth::apply(State&) const
+{
+    glLineWidth(_width);
+}
+

src/osg/Makefile

@@ -28,6 +28,7 @@ C++FILES = \
 	Light.cpp\
 	LightSource.cpp\
         LineSegment.cpp\
+        LineWidth.cpp\
 	LOD.cpp\
 	Material.cpp\
 	Matrix.cpp\

src/osgPlugins/osg/LineWidth.cpp

@@ -0,0 +1,54 @@
+#if defined(_MSC_VER)
+	#pragma warning( disable : 4786 )
+#endif
+
+#include <osg/LineWidth>
+
+#include <osgDB/Registry>
+#include <osgDB/Input>
+#include <osgDB/Output>
+
+using namespace osg;
+using namespace osgDB;
+
+// forward declare functions to use later.
+bool LineWidth_readLocalData(Object& obj, Input& fr);
+bool LineWidth_writeLocalData(const Object& obj, Output& fw);
+
+// register the read and write functions with the osgDB::Registry.
+RegisterDotOsgWrapperProxy g_LineWidthProxy
+(
+    new osg::LineWidth,
+    "LineWidth",
+    "Object StateAttribute LineWidth",
+    &LineWidth_readLocalData,
+    &LineWidth_writeLocalData
+);
+
+
+bool LineWidth_readLocalData(Object& obj, Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    LineWidth& lineWidth = static_cast<LineWidth&>(obj);
+
+    float data;
+    if (fr[0].matchWord("width") && fr[1].getFloat(data))
+    {
+
+        lineWidth.setWidth(data);
+        fr+=2;
+        iteratorAdvanced = true;
+    }
+
+    return iteratorAdvanced;
+}
+
+
+bool LineWidth_writeLocalData(const Object& obj, Output& fw)
+{
+    const LineWidth& lineWidth = static_cast<const LineWidth&>(obj);
+
+    fw.indent() << "width " << lineWidth.getWidth() << std::endl;
+    return true;
+}

src/osgPlugins/osg/Makefile

@@ -20,6 +20,7 @@ C++FILES = \
         Impostor.cpp\
         Light.cpp\
         LightSource.cpp\
+        LineWidth.cpp\
         LOD.cpp\
         Material.cpp\
         Matrix.cpp\