Initial commit of ResInsight version 0.4.8

VisualizationModules/LibRender/cvfDrawableText.h

@@ -0,0 +1,99 @@
+//##################################################################################################
+//
+//   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 "cvfDrawable.h"
+#include "cvfArray.h"
+#include "cvfBoundingBox.h"
+#include "cvfTextDrawer.h"
+
+namespace cvf {
+
+class Font;
+class DrawableGeo;
+class ShaderProgram;
+class BufferObjectManaged;
+
+
+//==================================================================================================
+//
+// DrawableText implements drawing of text strings attached to a 3D point
+//
+//==================================================================================================
+class DrawableText : public Drawable
+{
+public:
+    DrawableText();
+    virtual ~DrawableText();
+
+    void                        setFont(Font* font);
+    ref<Font>                   font() const;
+
+    void                        addText(const String& text, const Vec3f& position);
+
+    void                        setVerticalAlignment(TextDrawer::Alignment alignment);
+    void                        setTextColor(const Color3f& color);
+    void                        setBackgroundColor(const Color3f& color);
+    void                        setBorderColor(const Color3f& color);
+    void                        setDrawBackground(bool drawBackground);
+    void                        setDrawBorder(bool drawBorder);
+    void                        setCheckPosVisible(bool checkpos);
+
+    virtual void                createUploadBufferObjectsGPU(OpenGLContext* /*oglContext*/) {}
+    virtual void                releaseBufferObjectsGPU() {}
+
+    virtual void                render(OpenGLContext* oglContext, ShaderProgram* shaderProgram, const MatrixState& matrixState);
+    /*virtual*/ void            renderSoftware(OpenGLContext* oglContext, const MatrixState& matrixState);
+
+    virtual size_t              vertexCount() const;
+    virtual size_t              triangleCount() const;
+    virtual size_t              faceCount() const;
+
+    virtual BoundingBox         boundingBox() const;
+
+    virtual bool                rayIntersectCreateDetail(const Ray& ray, Vec3d* intersectionPoint, ref<HitDetail>* hitDetail) const;
+
+    // TO BE REMOVED!
+    virtual void                renderFixedFunction(OpenGLContext* oglContext, const MatrixState& matrixState) { renderSoftware(oglContext, matrixState); }
+    virtual void                renderImmediateMode(OpenGLContext* oglContext, const MatrixState& matrixState) { renderSoftware(oglContext, matrixState); }
+
+private:
+    void renderText(OpenGLContext* oglContext, ShaderProgram* shaderProgram, const MatrixState& matrixState);
+    bool labelAnchorVisible(OpenGLContext* oglContext, const Vec3d winCoord, const Vec3f& worldCoord, bool softwareRendering) const;
+
+
+private:
+    std::vector<Vec3f>          m_positions;        // Coordinate of the lower left corner of where to place the text in pixel coordinates
+    std::vector<String>         m_texts;            // Text strings to be drawn
+    ref<Font>                   m_font;             // Font used to draw text
+    
+    TextDrawer::Alignment       m_verticalAlignment;
+    Color3f                     m_textColor;       
+    Color3f                     m_backgroundColor;  
+    Color3f                     m_borderColor;      
+
+    bool                        m_drawBackground;
+    bool                        m_drawBorder;
+    bool                        m_checkPosVisible;
+
+    BoundingBox                 m_boundingBox;      //
+};
+
+}  // namespace cvf