Qt 5.11 | Qt Widgets | Border Layout Example | borderlayout.h Example File

Qt 5.11.3 Reference Documentation

# borderlayout.h Example File

layouts/borderlayout/borderlayout.h

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