view.h Example File | Qt Widgets 5.6

Qt 5.6 | Qt Widgets | 40000 Chips | view.h Example File

Qt 5.6.2 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
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      #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