/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkKWChangeColorButton.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

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=========================================================================*/
// .NAME vtkKWChangeColorButton - a button for selecting colors
// .SECTION Description
// A button that can be pressed to select a color.


#ifndef __vtkKWChangeColorButton_h
#define __vtkKWChangeColorButton_h

#include "vtkKWWidget.h"

class vtkKWApplication;

class VTK_EXPORT vtkKWChangeColorButton : public vtkKWWidget
{
public:
  static vtkKWChangeColorButton* New();
  vtkTypeRevisionMacro(vtkKWChangeColorButton,vtkKWWidget);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Create a Tk widget
  void Create(vtkKWApplication *app, const char *args);

  // Description:
  // Set/Get the current color
  void SetColor(float c[3]) {this->SetColor(c[0], c[1], c[2]);};
  void SetColor(float r, float g, float b);
  virtual float *GetColor() {return this->Color;};

  // Description:
  // Set the label to be used on the button
  vtkSetStringMacro(Text);
  vtkGetStringMacro(Text);

  
  // Description:
  // Handle button press and release events
  void AButtonPress(int x, int y);
  void AButtonRelease(int x, int y);
  
  // Description:
  // Set the command that is called when the color is changed - the object is
  // the KWObject that will have the method called on it.  The second argument
  // is the name of the method to be called and any arguments in string form.
  // The calling is done via TCL wrappers for the KWObject.
  virtual void SetCommand(vtkKWObject* Object, const char *MethodAndArgString);

  // Description:
  // Chaining method to serialize an object and its superclasses.
  virtual void SerializeSelf(ostream& os, vtkIndent indent);
  virtual void SerializeToken(istream& is,const char token[1024]);
  virtual void SerializeRevision(ostream& os, vtkIndent indent);

  void        ChangeColor();

protected:
  vtkKWChangeColorButton();
  ~vtkKWChangeColorButton();

  vtkKWWidget *Label1;
  vtkKWWidget *Label2;
  char        *Command;
  char        *Text;
  float       Color[3];
private:
  vtkKWChangeColorButton(const vtkKWChangeColorButton&); // Not implemented
  void operator=(const vtkKWChangeColorButton&); // Not implemented
};


#endif


