text: /****************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** You may use this file under the terms of the BSD license as follows:
  **
  ** "Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
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  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
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  ****************************************************************************/
  
  #ifndef BORDERLAYOUT_H
  #define BORDERLAYOUT_H
  
  #include <QLayout>
  #include <QRect>
  
  class BorderLayout : public QLayout
  {
  public:
      enum Position { West, North, South, East, Center };
  
      explicit BorderLayout(QWidget *parent, int margin = 0, int spacing = -1);
      BorderLayout(int spacing = -1);
      ~BorderLayout();
  
      void addItem(QLayoutItem *item) Q_DECL_OVERRIDE;
      void addWidget(QWidget *widget, Position position);
      Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE;
      bool hasHeightForWidth() const Q_DECL_OVERRIDE;
      int count() const Q_DECL_OVERRIDE;
      QLayoutItem *itemAt(int index) const Q_DECL_OVERRIDE;
      QSize minimumSize() const Q_DECL_OVERRIDE;
      void setGeometry(const QRect &rect) Q_DECL_OVERRIDE;
      QSize sizeHint() const Q_DECL_OVERRIDE;
      QLayoutItem *takeAt(int index) Q_DECL_OVERRIDE;
  
      void add(QLayoutItem *item, Position position);
  
  private:
      struct ItemWrapper
      {
          ItemWrapper(QLayoutItem *i, Position p) {
              item = i;
              position = p;
          }
  
          QLayoutItem *item;
          Position position;
      };
  
      enum SizeType { MinimumSize, SizeHint };
      QSize calculateSize(SizeType sizeType) const;
  
      QList<ItemWrapper *> list;
  };
  
  #endif // BORDERLAYOUT_H
  