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39#ifndef QGRAPHICSLAYOUTSTYLEINFO_P_H
40#define QGRAPHICSLAYOUTSTYLEINFO_P_H
41
42//
43// W A R N I N G
44// -------------
45//
46// This file is not part of the Qt API. It exists purely as an
47// implementation detail. This header file may change from version to
48// version without notice, or even be removed.
49//
50// We mean it.
51//
52
53#include <QtWidgets/private/qtwidgetsglobal_p.h>
54#include <QtGui/private/qabstractlayoutstyleinfo_p.h>
55#include <QtWidgets/qstyleoption.h>
56
57#include <memory>
58
59QT_REQUIRE_CONFIG(graphicsview);
60
61QT_BEGIN_NAMESPACE
62
63class QStyle;
64class QWidget;
65class QGraphicsLayoutPrivate;
66
67class QGraphicsLayoutStyleInfo : public QAbstractLayoutStyleInfo
68{
69public:
70 QGraphicsLayoutStyleInfo(const QGraphicsLayoutPrivate *layout);
71 ~QGraphicsLayoutStyleInfo();
72
73 virtual qreal combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1,
74 QLayoutPolicy::ControlTypes controls2,
75 Qt::Orientation orientation) const override;
76
77 virtual qreal perItemSpacing(QLayoutPolicy::ControlType control1,
78 QLayoutPolicy::ControlType control2,
79 Qt::Orientation orientation) const override;
80
81 virtual qreal spacing(Qt::Orientation orientation) const override;
82
83 virtual qreal windowMargin(Qt::Orientation orientation) const override;
84
85 virtual void invalidate() override
86 {
87 m_style = nullptr;
88 QAbstractLayoutStyleInfo::invalidate();
89 }
90
91 QWidget *widget() const;
92 QStyle *style() const;
93
94private:
95 const QGraphicsLayoutPrivate *m_layout;
96 mutable QStyle *m_style;
97 QStyleOption m_styleOption;
98 std::unique_ptr<QWidget> m_widget;
99};
100
101QT_END_NAMESPACE
102
103#endif // QGRAPHICSLAYOUTSTYLEINFO_P_H
104