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39
40#ifndef QSCROLLAREA_H
41#define QSCROLLAREA_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtWidgets/qabstractscrollarea.h>
45
46QT_REQUIRE_CONFIG(scrollarea);
47
48QT_BEGIN_NAMESPACE
49
50class QScrollAreaPrivate;
51
52class Q_WIDGETS_EXPORT QScrollArea : public QAbstractScrollArea
53{
54 Q_OBJECT
55 Q_PROPERTY(bool widgetResizable READ widgetResizable WRITE setWidgetResizable)
56 Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
57
58public:
59 explicit QScrollArea(QWidget *parent = nullptr);
60 ~QScrollArea();
61
62 QWidget *widget() const;
63 void setWidget(QWidget *widget);
64 QWidget *takeWidget();
65
66 bool widgetResizable() const;
67 void setWidgetResizable(bool resizable);
68
69 QSize sizeHint() const override;
70
71 bool focusNextPrevChild(bool next) override;
72
73 Qt::Alignment alignment() const;
74 void setAlignment(Qt::Alignment);
75
76 void ensureVisible(int x, int y, int xmargin = 50, int ymargin = 50);
77 void ensureWidgetVisible(QWidget *childWidget, int xmargin = 50, int ymargin = 50);
78
79protected:
80 QScrollArea(QScrollAreaPrivate &dd, QWidget *parent = nullptr);
81 bool event(QEvent *) override;
82 bool eventFilter(QObject *, QEvent *) override;
83 void resizeEvent(QResizeEvent *) override;
84 void scrollContentsBy(int dx, int dy) override;
85
86 QSize viewportSizeHint() const override;
87
88private:
89 Q_DECLARE_PRIVATE(QScrollArea)
90 Q_DISABLE_COPY(QScrollArea)
91};
92
93QT_END_NAMESPACE
94
95#endif // QSCROLLAREA_H
96

source code of qtbase/src/widgets/widgets/qscrollarea.h