- Qt 5.5
- Qt Widgets
- 40000 Chips
- view.h Example File
- Qt 5.5.1 Reference Documentation

# view.h Example File

graphicsview/chip/view.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 VIEW_H
    #define VIEW_H

    #include <QFrame>
    #include <QGraphicsView>

    class QLabel;
    class QSlider;
    class QToolButton;

    class View;

    class GraphicsView : public QGraphicsView
    {
        Q_OBJECT
    public:
        GraphicsView(View *v) : QGraphicsView(), view(v) { }

    protected:
    #ifndef QT_NO_WHEELEVENT
        void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
    #endif

    private:
        View *view;
    };

    class View : public QFrame
    {
        Q_OBJECT
    public:
        explicit View(const QString &name, QWidget *parent = 0);

        QGraphicsView *view() const;

    public slots:
        void zoomIn(int level = 1);
        void zoomOut(int level = 1);

    private slots:
        void resetView();
        void setResetButtonEnabled();
        void setupMatrix();
        void togglePointerMode();
        void toggleOpenGL();
        void toggleAntialiasing();
        void print();
        void rotateLeft();
        void rotateRight();

    private:
        GraphicsView *graphicsView;
        QLabel *label;
        QLabel *label2;
        QToolButton *selectModeButton;
        QToolButton *dragModeButton;
        QToolButton *openGlButton;
        QToolButton *antialiasButton;
        QToolButton *printButton;
        QToolButton *resetButton;
        QSlider *zoomSlider;
        QSlider *rotateSlider;
    };

    #endif // VIEW_H