Initial commit of ResInsight version 0.4.8

VisualizationModules/LibRender/cvfGlyph.h

@@ -0,0 +1,82 @@
+//##################################################################################################
+//
+//   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. 
+//
+//##################################################################################################
+
+#pragma once
+
+#include "cvfObject.h"
+#include "cvfArray.h"
+
+namespace cvf {
+
+class TextureImage;
+class RenderState;
+class OpenGLContext;
+
+
+//==================================================================================================
+//
+// Pre-rendered text character
+//
+//==================================================================================================
+class Glyph : public Object
+{
+public:
+    Glyph(wchar_t character);
+    virtual ~Glyph();
+
+    wchar_t             character() const;
+
+    void                setWidth(uint width);
+    uint                width() const;
+    void                setHeight(uint height);
+    uint                height() const;
+
+    void                setTextureImage(TextureImage* textureImage);
+    const TextureImage* textureImage() const;
+    const FloatArray*   textureCoordinates() const;
+
+    void                setHorizontalBearingX(short bearing);
+    short               horizontalBearingX() const;
+    void                setHorizontalBearingY(short bearing);
+    short               horizontalBearingY() const;
+    void                setHorizontalAdvance(uint advance);
+    uint                horizontalAdvance() const;
+
+    void                setupAndBindTexture(OpenGLContext* oglContext, bool software);
+
+private:
+    wchar_t           m_character;          // Character this glyph is generated from
+
+    // Size of the pre-rendered character in pixels. 
+    // Note: May be smaller than the size of m_textureImage since this may contain alpha's and even more characters
+    uint              m_width;
+    uint              m_height;
+
+    // For horizontal text layouts
+    short             m_horizontalBearingX; // Horizontal distance from the current cursor position to the leftmost border of the glyph image's bounding box.
+    short             m_horizontalBearingY; // Vertical distance from the current cursor position (on the baseline) to the topmost border of the glyph image's bounding box.
+    uint              m_horizontalAdvance;  // Horizontal distance used to increment the pen position when the glyph is drawn as part of a string of text.
+
+    // Texture info
+    ref<TextureImage> m_textureImage;       // Pre-rendered image of m_character
+    ref<FloatArray>   m_textureCoordinates; // Texture coordinates of where in the m_texgtureImage to find the given pre-rendered character
+    ref<RenderState>  m_textureBindings;    // For shader based rendering this is a TextureBindings object, while software rendering uses TextureMapping_FF instead
+};
+
+} // namespace cvf