nux-1.14.0
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00001 /* 00002 * Copyright 2010 Inalogic® Inc. 00003 * 00004 * This program is free software: you can redistribute it and/or modify it 00005 * under the terms of the GNU Lesser General Public License, as 00006 * published by the Free Software Foundation; either version 2.1 or 3.0 00007 * of the License. 00008 * 00009 * This program is distributed in the hope that it will be useful, but 00010 * WITHOUT ANY WARRANTY; without even the implied warranties of 00011 * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR 00012 * PURPOSE. See the applicable version of the GNU Lesser General Public 00013 * License for more details. 00014 * 00015 * You should have received a copy of both the GNU Lesser General Public 00016 * License along with this program. If not, see <http://www.gnu.org/licenses/> 00017 * 00018 * Authored by: Jay Taoko <jaytaoko@inalogic.com> 00019 * 00020 */ 00021 00022 00023 #ifndef FUNCTIONGRAPH_H 00024 #define FUNCTIONGRAPH_H 00025 00026 #include "NuxGraphics/GpuDevice.h" 00027 #include "NuxGraphics/GLDeviceObjects.h" 00028 #include "NuxGraphics/GLSh_DrawFunction.h" 00029 00030 namespace nux 00031 { 00032 00033 typedef float (*FunctionCallback) (float); 00034 00035 class FunctionGraph : public View 00036 { 00037 public: 00038 FunctionGraph (NUX_FILE_LINE_PROTO); 00039 ~FunctionGraph(); 00040 virtual long ProcessEvent (IEvent &ievent, long TraverseInfo, long ProcessEventInfo); 00041 virtual void Draw (GraphicsEngine &GfxContext, bool force_draw); 00042 virtual void DrawContent (GraphicsEngine &GfxContext, bool force_draw); 00043 virtual void PostDraw (GraphicsEngine &GfxContext, bool force_draw); 00044 00045 void SetXAxisBounds (float minX, float maxX); 00046 void SetYAxisBounds (float minY, float maxY); 00047 void SetFunctionCallback (FunctionCallback f); 00048 float EvalFunction (float x); 00049 void UpdateGraph(); 00050 00051 protected: 00052 void InitializeWidgets(); 00053 void InitializeLayout(); 00054 00055 private: 00056 float m_minX, m_minY, m_maxX, m_maxY; 00057 FunctionCallback m_FunctionCallback; 00058 00059 ObjectPtr<IOpenGLBaseTexture> Texture; 00060 TextureLayer *m_BackgroundLayer; 00061 GLSh_DrawFunction *m_DrawFunctionShader; 00062 }; 00063 00064 00065 } 00066 00067 #endif // FUNCTIONGRAPH_H