chartview.h Example File

zoomlinechart/chartview.h

  /******************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the Qt Charts module.
  **
  ** $QT_BEGIN_LICENSE:COMM$
  **
  ** 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
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  #ifndef CHARTVIEW_H
  #define CHARTVIEW_H

  #include <QtCharts/QChartView>
  #include <QtWidgets/QRubberBand>

  QT_CHARTS_USE_NAMESPACE

  class ChartView : public QChartView
  {
  public:
      ChartView(QChart *chart, QWidget *parent = 0);

  protected:
      bool viewportEvent(QEvent *event);
      void mousePressEvent(QMouseEvent *event);
      void mouseMoveEvent(QMouseEvent *event);
      void mouseReleaseEvent(QMouseEvent *event);
      void keyPressEvent(QKeyEvent *event);

  private:
      bool m_isTouching;
  };

  #endif