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# borderlayout.h Example File
layouts/borderlayout/borderlayout.h

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     #ifndef BORDERLAYOUT_H
     #define BORDERLAYOUT_H

     #include <QLayout>
     #include <QRect>
     #include <QWidgetItem>

     class BorderLayout : public QLayout
     {
     public:
         enum Position { West, North, South, East, Center };

         BorderLayout(QWidget *parent, int margin = 0, int spacing = -1);
         BorderLayout(int spacing = -1);
         ~BorderLayout();

         void addItem(QLayoutItem *item);
         void addWidget(QWidget *widget, Position position);
         Qt::Orientations expandingDirections() const;
         bool hasHeightForWidth() const;
         int count() const;
         QLayoutItem *itemAt(int index) const;
         QSize minimumSize() const;
         void setGeometry(const QRect &rect);
         QSize sizeHint() const;
         QLayoutItem *takeAt(int index);

         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