palette.h

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#ifndef PALETTE_H
#define PALETTE_H

#include <QtGui/qwidget.h>

enum COLOR_TABLE {BW=0, COLOR, NB_PAL};

class QMenu;
class QColor;

class Palette : public QWidget
{
  Q_OBJECT

public:
  Palette(QWidget *parent=0);

  virtual ~Palette();

protected:

  int m_idxPal;

  int m_vMin;

  int m_vMax;

  float m_fact;

  int m_dataMin;

  int m_dataMax;

  QMenu *m_menuPalette;

  QMenu *m_menuColors;

  QMenu *m_menuLinLog;

  bool m_isLogScale;

signals:
  void PaletteModified();

public slots:

  void SelectBW();

  void SelectColor();

  void SelectLinear();

  void SelectLogarithmic();

  void AdjustScale();

  void AdjustAutoScale();

protected:

  void paintEvent(QPaintEvent *);

  void paintPalette(QPainter *p);   

  void CreatePaletteMenu();

  void mousePressEvent(QMouseEvent *e);

  void AdjustScaleFactor();

  void ChangePalette(int iPal);

  void ChangeLinLog(bool);

  int GetPalIndex(int i) const;

public:

  QColor GetColor(int i) const ;

  int GetPal() const ;

  int GetMin() const ;

  int GetMax() const ;

  bool IsLogScale() const ;

  QMenu* GetMenu() const ;

  void ChangeDataMinMax(int min, int max);

  void ChangeExtrema(int vMin, int vMax);

  int DataToIndex(int val);
}; 

#endif // 

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