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39
40#ifndef QGRAPHICSANCHORLAYOUT_H
41#define QGRAPHICSANCHORLAYOUT_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtWidgets/qgraphicsitem.h>
45#include <QtWidgets/qgraphicslayout.h>
46
47QT_REQUIRE_CONFIG(graphicsview);
48
49QT_BEGIN_NAMESPACE
50
51class QGraphicsAnchorPrivate;
52class QGraphicsAnchorLayout;
53class QGraphicsAnchorLayoutPrivate;
54
55class Q_WIDGETS_EXPORT QGraphicsAnchor : public QObject
56{
57 Q_OBJECT
58 Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing RESET unsetSpacing)
59 Q_PROPERTY(QSizePolicy::Policy sizePolicy READ sizePolicy WRITE setSizePolicy)
60public:
61 void setSpacing(qreal spacing);
62 void unsetSpacing();
63 qreal spacing() const;
64 void setSizePolicy(QSizePolicy::Policy policy);
65 QSizePolicy::Policy sizePolicy() const;
66 ~QGraphicsAnchor();
67private:
68 QGraphicsAnchor(QGraphicsAnchorLayout *parent);
69
70 Q_DECLARE_PRIVATE(QGraphicsAnchor)
71
72 friend class QGraphicsAnchorLayoutPrivate;
73};
74
75class Q_WIDGETS_EXPORT QGraphicsAnchorLayout : public QGraphicsLayout
76{
77public:
78 QGraphicsAnchorLayout(QGraphicsLayoutItem *parent = nullptr);
79 virtual ~QGraphicsAnchorLayout();
80
81 QGraphicsAnchor *addAnchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,
82 QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);
83 QGraphicsAnchor *anchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,
84 QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);
85
86 void addCornerAnchors(QGraphicsLayoutItem *firstItem, Qt::Corner firstCorner,
87 QGraphicsLayoutItem *secondItem, Qt::Corner secondCorner);
88
89 void addAnchors(QGraphicsLayoutItem *firstItem,
90 QGraphicsLayoutItem *secondItem,
91 Qt::Orientations orientations = Qt::Horizontal | Qt::Vertical);
92
93 void setHorizontalSpacing(qreal spacing);
94 void setVerticalSpacing(qreal spacing);
95 void setSpacing(qreal spacing);
96 qreal horizontalSpacing() const;
97 qreal verticalSpacing() const;
98
99 void removeAt(int index) override;
100 void setGeometry(const QRectF &rect) override;
101 int count() const override;
102 QGraphicsLayoutItem *itemAt(int index) const override;
103
104 void invalidate() override;
105protected:
106 QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override;
107
108private:
109 Q_DISABLE_COPY(QGraphicsAnchorLayout)
110 Q_DECLARE_PRIVATE(QGraphicsAnchorLayout)
111
112 friend class QGraphicsAnchor;
113};
114
115QT_END_NAMESPACE
116
117#endif
118