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50
51#ifndef BORDERLAYOUT_H
52#define BORDERLAYOUT_H
53
54#include <QLayout>
55#include <QRect>
56
57class BorderLayout : public QLayout
58{
59public:
60 enum Position { West, North, South, East, Center };
61
62 explicit BorderLayout(QWidget *parent, const QMargins &margins = QMargins(), int spacing = -1);
63 BorderLayout(int spacing = -1);
64 ~BorderLayout();
65
66 void addItem(QLayoutItem *item) override;
67 void addWidget(QWidget *widget, Position position);
68 Qt::Orientations expandingDirections() const override;
69 bool hasHeightForWidth() const override;
70 int count() const override;
71 QLayoutItem *itemAt(int index) const override;
72 QSize minimumSize() const override;
73 void setGeometry(const QRect &rect) override;
74 QSize sizeHint() const override;
75 QLayoutItem *takeAt(int index) override;
76
77 void add(QLayoutItem *item, Position position);
78
79private:
80 struct ItemWrapper
81 {
82 ItemWrapper(QLayoutItem *i, Position p) {
83 item = i;
84 position = p;
85 }
86
87 QLayoutItem *item;
88 Position position;
89 };
90
91 enum SizeType { MinimumSize, SizeHint };
92 QSize calculateSize(SizeType sizeType) const;
93
94 QList<ItemWrapper *> list;
95};
96
97#endif // BORDERLAYOUT_H
98

source code of qtbase/examples/widgets/layouts/borderlayout/borderlayout.h