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# colorswatch.h Example File

demos/mainwindow/colorswatch.h

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and The Qt Company. For licensing terms
     ** and conditions see http://www.qt.io/terms-conditions. For further
     ** information use the contact form at http://www.qt.io/contact-us.
     **
     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 or version 3 as published by the Free
     ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
     ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
     ** following information to ensure the GNU Lesser General Public License
     ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
     ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
     **
     ** As a special exception, The Qt Company gives you certain additional
     ** rights. These rights are described in The Qt Company LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
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     **
     ** $QT_END_LICENSE$
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     ****************************************************************************/

     #ifndef COLORSWATCH_H
     #define COLORSWATCH_H

     #include <QDockWidget>

     QT_FORWARD_DECLARE_CLASS(QAction)
     QT_FORWARD_DECLARE_CLASS(QActionGroup)
     QT_FORWARD_DECLARE_CLASS(QMenu)

     class ColorSwatch : public QDockWidget
     {
         Q_OBJECT

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

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

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

         QAction *changeSizeHintsAction;

         QMenu *tabMenu;
         QMenu *splitHMenu;
         QMenu *splitVMenu;

         QAction *windowModifiedAction;

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

         QMenu *menu;
         void setCustomSizeHint(const QSize &size);

     protected:
         virtual void contextMenuEvent(QContextMenuEvent *event);
         virtual void resizeEvent(QResizeEvent *e);

     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 changeVerticalTitleBar(bool on);
         void updateContextMenu();

         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);

         void splitInto(QAction *action);
         void tabInto(QAction *action);
     };

     class BlueTitleBar : public QWidget
     {
         Q_OBJECT
     public:
         BlueTitleBar(QWidget *parent = 0);

         QSize sizeHint() const { return minimumSizeHint(); }
         QSize minimumSizeHint() const;
     protected:
         void paintEvent(QPaintEvent *event);
         void mousePressEvent(QMouseEvent *event);
     public slots:
         void updateMask();

     private:
         QPixmap leftPm, centerPm, rightPm;
     };

     #endif