00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: vtkColorLegend.h 00005 00006 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 00007 All rights reserved. 00008 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00009 00010 This software is distributed WITHOUT ANY WARRANTY; without even 00011 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00012 PURPOSE. See the above copyright notice for more information. 00013 00014 =========================================================================*/ 00015 00023 #ifndef __vtkColorLegend_h 00024 #define __vtkColorLegend_h 00025 00026 #include "vtkChartLegend.h" 00027 #include "vtkSmartPointer.h" // For SP ivars 00028 #include "vtkVector.h" // For vtkRectf 00029 00030 class vtkAxis; 00031 class vtkImageData; 00032 class vtkScalarsToColors; 00033 class vtkCallbackCommand; 00034 00035 class VTK_CHARTS_EXPORT vtkColorLegend: public vtkChartLegend 00036 { 00037 public: 00038 vtkTypeMacro(vtkColorLegend, vtkChartLegend); 00039 virtual void PrintSelf(ostream &os, vtkIndent indent); 00040 static vtkColorLegend* New(); 00041 00044 virtual void GetBounds(double bounds[4]); 00045 00049 virtual void Update(); 00050 00054 virtual bool Paint(vtkContext2D *painter); 00055 00056 virtual void SetTransferFunction(vtkScalarsToColors* transfer); 00057 virtual vtkScalarsToColors * GetTransferFunction(); 00058 00059 virtual void SetPosition(const vtkRectf& pos); 00060 virtual vtkRectf GetPosition(); 00061 00067 vtkRectf GetBoundingRect(vtkContext2D* painter); 00068 00069 protected: 00070 vtkColorLegend(); 00071 virtual ~vtkColorLegend(); 00072 00076 virtual void ComputeTexture(); 00077 00079 00081 virtual void ScalarsToColorsModified(vtkObject* caller, unsigned long eid, 00082 void* calldata); 00083 static void OnScalarsToColorsModified(vtkObject* caller, unsigned long eid, 00084 void *clientdata, void* calldata); 00086 00087 vtkScalarsToColors* TransferFunction; 00088 vtkSmartPointer<vtkImageData> ImageData; 00089 vtkSmartPointer<vtkAxis> Axis; 00090 vtkSmartPointer<vtkCallbackCommand> Callback; 00091 bool Interpolate; 00092 vtkRectf Position; 00093 00094 private: 00095 vtkColorLegend(const vtkColorLegend &); // Not implemented. 00096 void operator=(const vtkColorLegend &); // Not implemented. 00097 }; 00098 00099 #endif