Upgraded visualization libraries

Major refactoring of color legend framework
Added discrete log color legend
p4#: 18989

VisualizationModules/LibRender/cvfRenderStateColorMask.cpp

@@ -0,0 +1,130 @@
+//##################################################################################################
+//
+//   Custom Visualization Core library
+//   Copyright (C) 2011-2012 Ceetron AS
+//    
+//   This library is free software: you can redistribute it and/or modify 
+//   it under the terms of the GNU General Public License as published by 
+//   the Free Software Foundation, either version 3 of the License, or 
+//   (at your option) any later version. 
+//    
+//   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 GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
+//   for more details. 
+//
+//##################################################################################################
+
+#include "cvfBase.h"
+#include "cvfRenderStateColorMask.h"
+#include "cvfAssert.h"
+#include "cvfOpenGL.h"
+
+namespace cvf {
+
+
+
+//==================================================================================================
+///
+/// \class cvf::RenderStateColorMask
+/// \ingroup Render
+///
+/// Encapsulate OpenGL glColorMask() function.
+///
+/// \sa http://www.opengl.org/sdk/docs/man/xhtml/glColorMask.xml
+//==================================================================================================
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+RenderStateColorMask::RenderStateColorMask(bool writeAllComponents)
+:   RenderState(COLOR_MASK),
+    m_writeRed(writeAllComponents),
+    m_writeGreen(writeAllComponents),
+    m_writeBlue(writeAllComponents),
+    m_writeAlpha(writeAllComponents)
+{
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RenderStateColorMask::enable(bool writeRed, bool writeGreen, bool writeBlue, bool writeAlpha)
+{
+    m_writeRed = writeRed;
+    m_writeGreen = writeGreen;
+    m_writeBlue = writeBlue;
+    m_writeAlpha = writeAlpha;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RenderStateColorMask::enableWriteAllComponents(bool writeAllComponents)
+{
+    m_writeRed = writeAllComponents;
+    m_writeGreen = writeAllComponents;
+    m_writeBlue = writeAllComponents;
+    m_writeAlpha = writeAllComponents;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+bool RenderStateColorMask::isRedEnabled() const
+{
+    return m_writeRed;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+bool RenderStateColorMask::isGreenEnabled() const
+{
+    return m_writeGreen;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+bool RenderStateColorMask::isBlueEnabled() const
+{
+    return m_writeBlue;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+bool RenderStateColorMask::isAlphaEnabled() const
+{
+    return m_writeAlpha;
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RenderStateColorMask::applyOpenGL(OpenGLContext* oglContext) const
+{
+    GLboolean writeRed   = m_writeRed   ? static_cast<GLboolean>(GL_TRUE) : static_cast<GLboolean>(GL_FALSE);
+    GLboolean writeGreen = m_writeGreen ? static_cast<GLboolean>(GL_TRUE) : static_cast<GLboolean>(GL_FALSE);
+    GLboolean writeBlue  = m_writeBlue  ? static_cast<GLboolean>(GL_TRUE) : static_cast<GLboolean>(GL_FALSE);
+    GLboolean writeAlpha = m_writeAlpha ? static_cast<GLboolean>(GL_TRUE) : static_cast<GLboolean>(GL_FALSE);
+
+    glColorMask(writeRed, writeGreen, writeBlue, writeAlpha);
+
+    CVF_CHECK_OGL(oglContext);
+}
+
+
+
+} // namespace cvf
+