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# colorswatch.h Example File
demos/mainwindow/colorswatch.h

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        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
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    ** information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
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    ** not clear to you.
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        #ifndef COLORSWATCH_H
        #define COLORSWATCH_H

        #include <qdockwidget.h>

        class QAction;
        class QActionGroup;
        class QMenu;

        class ColorSwatch : public QDockWidget
        {
            Q_OBJECT

            QAction *closableAction;
            QAction *movableAction;
            QAction *floatableAction;
            QAction *floatingAction;

            QActionGroup *allowedAreasActions;
            QAction *allowLeftAction;
            QAction *allowRightAction;
            QAction *allowTopAction;
            QAction *allowBottomAction;

            QActionGroup *areaActions;
            QAction *leftAction;
            QAction *rightAction;
            QAction *topAction;
            QAction *bottomAction;

        public:
            ColorSwatch(const QString &colorName, QWidget *parent = 0, Qt::WFlags flags = 0);

            QMenu *menu;

        protected:
            virtual void contextMenuEvent(QContextMenuEvent *event);
            virtual bool event(QEvent *);

        private:
            void allow(Qt::DockWidgetArea area, bool allow);
            void place(Qt::DockWidgetArea area, bool place);

        private slots:
            void changeClosable(bool on);
            void changeMovable(bool on);
            void changeFloatable(bool on);
            void changeFloating(bool on);

            void allowLeft(bool a);
            void allowRight(bool a);
            void allowTop(bool a);
            void allowBottom(bool a);

            void placeLeft(bool p);
            void placeRight(bool p);
            void placeTop(bool p);
            void placeBottom(bool p);
        };

        #endif