qt5base-lts/examples/widgets/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>

QT_BEGIN_NAMESPACE
class QLabel;
class QSlider;
class QToolButton;
QT_END_NAMESPACE

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