- Qt 5.5
- Qt Widgets
- Main Window
- colorswatch.h Example File
- Qt 5.5.1 Reference Documentation

# colorswatch.h Example File

mainwindows/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.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** 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.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

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

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

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

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

    private:
        QPixmap leftPm, centerPm, rightPm;
    };

    #endif