text: /****************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the tools 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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  **
  ** As a special exception, The Qt Company gives you certain additional
  ** rights. These rights are described in The Qt Company LGPL Exception
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  **
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  **
  ****************************************************************************/
  
  #ifndef QTGRADIENTSTOPSWIDGET_H
  #define QTGRADIENTSTOPSWIDGET_H
  
  #include <QtWidgets/QAbstractScrollArea>
  
  QT_BEGIN_NAMESPACE
  
  class QtGradientStopsModel;
  class QtGradientStopsWidgetPrivate;
  
  class QtGradientStopsWidget : public QAbstractScrollArea
  {
      Q_OBJECT
      Q_PROPERTY(bool backgroundCheckered READ isBackgroundCheckered WRITE setBackgroundCheckered)
  public:
      QtGradientStopsWidget(QWidget *parent = 0);
      ~QtGradientStopsWidget();
  
      QSize minimumSizeHint() const;
      QSize sizeHint() const;
  
      bool isBackgroundCheckered() const;
      void setBackgroundCheckered(bool checkered);
  
      void setGradientStopsModel(QtGradientStopsModel *model);
  
      void setZoom(double zoom);
      double zoom() const;
  
  signals:
  
      void zoomChanged(double zoom);
  
  protected:
      void paintEvent(QPaintEvent *e);
      void mousePressEvent(QMouseEvent *e);
      void mouseReleaseEvent(QMouseEvent *e);
      void mouseMoveEvent(QMouseEvent *e);
      void mouseDoubleClickEvent(QMouseEvent *e);
      void keyPressEvent(QKeyEvent *e);
      void focusInEvent(QFocusEvent *e);
      void focusOutEvent(QFocusEvent *e);
      void contextMenuEvent(QContextMenuEvent *e);
      void wheelEvent(QWheelEvent *e);
  #ifndef QT_NO_DRAGANDDROP
      void dragEnterEvent(QDragEnterEvent *event);
      void dragMoveEvent(QDragMoveEvent *event);
      void dragLeaveEvent(QDragLeaveEvent *event);
      void dropEvent(QDropEvent *event);
  #endif
  
  private:
      QScopedPointer<QtGradientStopsWidgetPrivate> d_ptr;
      Q_DECLARE_PRIVATE(QtGradientStopsWidget)
      Q_DISABLE_COPY(QtGradientStopsWidget)
      Q_PRIVATE_SLOT(d_func(), void slotStopAdded(QtGradientStop *stop))
      Q_PRIVATE_SLOT(d_func(), void slotStopRemoved(QtGradientStop *stop))
      Q_PRIVATE_SLOT(d_func(), void slotStopMoved(QtGradientStop *stop, qreal newPos))
      Q_PRIVATE_SLOT(d_func(), void slotStopsSwapped(QtGradientStop *stop1, QtGradientStop *stop2))
      Q_PRIVATE_SLOT(d_func(), void slotStopChanged(QtGradientStop *stop, const QColor &newColor))
      Q_PRIVATE_SLOT(d_func(), void slotStopSelected(QtGradientStop *stop, bool selected))
      Q_PRIVATE_SLOT(d_func(), void slotCurrentStopChanged(QtGradientStop *stop))
      Q_PRIVATE_SLOT(d_func(), void slotNewStop())
      Q_PRIVATE_SLOT(d_func(), void slotDelete())
      Q_PRIVATE_SLOT(d_func(), void slotFlipAll())
      Q_PRIVATE_SLOT(d_func(), void slotSelectAll())
      Q_PRIVATE_SLOT(d_func(), void slotZoomIn())
      Q_PRIVATE_SLOT(d_func(), void slotZoomOut())
      Q_PRIVATE_SLOT(d_func(), void slotResetZoom())
  };
  
  QT_END_NAMESPACE
  
  #endif
  