QvisColorTableButton.h 4.23 KB
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/*****************************************************************************
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* Copyright (c) 2000 - 2008, Lawrence Livermore National Security, LLC
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* Produced at the Lawrence Livermore National Laboratory
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* LLNL-CODE-400142
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#ifndef QVIS_COLORTABLE_BUTTON_H
#define QVIS_COLORTABLE_BUTTON_H
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#include <winutil_exports.h>
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#include <QPushButton>
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// Forward declarations.
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class QAction;
class QActionGroup;
class QMenu;
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// ****************************************************************************
// Class: QvisColorTableButton
//
// Purpose:
//   This is a type of push button that is aware of the different color tables
//   that can be used for plots.
//
// Notes:      
//
// Programmer: Brad Whitlock
// Creation:   Wed Jun 20 12:37:24 PDT 2001
//
// Modifications:
//   Brad Whitlock, Thu Feb 14 13:37:41 PST 2002
//   Added a counter.
//
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//   Brad Whitlock, Tue Feb 20 11:47:37 PDT 2007
//   Changed API.
//
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//   Brad Whitlock, Fri May  9 11:20:10 PDT 2008
//   Qt 4.
//
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// ****************************************************************************

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class WINUTIL_API QvisColorTableButton : public QPushButton
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{
    Q_OBJECT

    typedef std::vector<QvisColorTableButton *> ColorTableButtonVector;
public:
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    QvisColorTableButton(QWidget *parent);
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    virtual ~QvisColorTableButton();
    virtual QSize sizeHint() const;
    virtual QSizePolicy sizePolicy () const;

    void setColorTable(const QString &ctName);
    const QString &getColorTable() const;
    void useDefaultColorTable();

    // Methods to set the list of internal color tables.
    static void clearAllColorTables();
    static void addColorTable(const QString &ctName);
    static void updateColorTableButtons();
signals:
    void selectedColorTable(bool useDefault, const QString &ctName);
private slots:
    void popupPressed();
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    void colorTableSelected(QAction *);
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private:
    static int  getColorTableIndex(const QString &ctName);
    static void regeneratePopupMenu();

    QString                        colorTable;

    static int                     numInstances;
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    static QMenu                  *colorTableMenu;
    static QActionGroup           *colorTableMenuActionGroup;
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    static bool                    popupHasEntries;
    static ColorTableButtonVector  buttons;

    static int                     numColorTableNames;
    static QString                *colorTableNames;
};

#endif