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 CURVECONTROL_H 00024 #define CURVECONTROL_H 00025 00026 namespace nux 00027 { 00028 00029 typedef float (*FunctionCallback) (float); 00030 00031 class CurveControl : public View 00032 { 00033 public: 00034 CurveControl (NUX_FILE_LINE_PROTO); 00035 ~CurveControl(); 00036 virtual long ProcessEvent (IEvent &ievent, long TraverseInfo, long ProcessEventInfo); 00037 virtual void Draw (GraphicsEngine &GfxContext, bool force_draw); 00038 virtual void DrawContent (GraphicsEngine &GfxContext, bool force_draw); 00039 virtual void PostDraw (GraphicsEngine &GfxContext, bool force_draw); 00040 00041 00042 private: 00043 void SetXAxisBounds (float minX, float maxX); 00044 void SetYAxisBounds (float minY, float maxY); 00045 void SetFunctionCallback (FunctionCallback f); 00046 float EvalFunction (float x); 00047 void UpdateGraph(); 00048 00049 float m_minX, m_minY, m_maxX, m_maxY; 00050 FunctionCallback m_FunctionCallback; 00051 00052 }; 00053 00054 00055 } 00056 00057 #endif // CURVECONTROL_H