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39 
40 #ifndef QLAYOUT_P_H
41 #define QLAYOUT_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists for the convenience
48 // of qlayout*.cpp, and qabstractlayout.cpp.  This header
49 // file may change from version to version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtWidgets/private/qtwidgetsglobal_p.h>
55 #include "private/qobject_p.h"
56 #include "qstyle.h"
57 #include "qsizepolicy.h"
58 
59 QT_BEGIN_NAMESPACE
60 
61 class QWidgetItem;
62 class QSpacerItem;
63 class QLayoutItem;
64 
65 class Q_WIDGETS_EXPORT QLayoutPrivate : public QObjectPrivate
66 {
67     Q_DECLARE_PUBLIC(QLayout)
68 
69 public:
70     typedef QWidgetItem * (*QWidgetItemFactoryMethod)(const QLayout *layout, QWidget *widget);
71     typedef QSpacerItem * (*QSpacerItemFactoryMethod)(const QLayout *layout, int w, int h, QSizePolicy::Policy hPolicy, QSizePolicy::Policy);
72 
73     QLayoutPrivate();
74 
75     void getMargin(int *result, int userMargin, QStyle::PixelMetric pm) const;
76     void doResize();
77     void reparentChildWidgets(QWidget *mw);
78     bool checkWidget(QWidget *widget) const;
79     bool checkLayout(QLayout *otherLayout) const;
80 
81     static QWidgetItem *createWidgetItem(const QLayout *layout, QWidget *widget);
82     static QSpacerItem *createSpacerItem(const QLayout *layout, int w, int h, QSizePolicy::Policy hPolicy = QSizePolicy::Minimum, QSizePolicy::Policy vPolicy = QSizePolicy::Minimum);
replaceAt(int index,QLayoutItem * newitem)83     virtual QLayoutItem* replaceAt(int index, QLayoutItem *newitem) { Q_UNUSED(index); Q_UNUSED(newitem); return nullptr; }
84 
85     static QWidgetItemFactoryMethod widgetItemFactoryMethod;
86     static QSpacerItemFactoryMethod spacerItemFactoryMethod;
87 
88     int insideSpacing;
89     int userLeftMargin;
90     int userTopMargin;
91     int userRightMargin;
92     int userBottomMargin;
93     uint topLevel : 1;
94     uint enabled : 1;
95     uint activated : 1;
96     uint autoNewChild : 1;
97     QLayout::SizeConstraint constraint;
98     QRect rect;
99     QWidget *menubar;
100 };
101 
102 QT_END_NAMESPACE
103 
104 #endif // QLAYOUT_P_H
105