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39
40#ifndef QDESKTOPWIDGET_H
41#define QDESKTOPWIDGET_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtWidgets/qwidget.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class QApplication;
50class QDesktopWidgetPrivate;
51
52class Q_WIDGETS_EXPORT QDesktopWidget : public QWidget
53{
54 Q_OBJECT
55#if QT_DEPRECATED_SINCE(5, 11)
56 Q_PROPERTY(bool virtualDesktop READ isVirtualDesktop)
57 Q_PROPERTY(int screenCount READ screenCount NOTIFY screenCountChanged)
58 Q_PROPERTY(int primaryScreen READ primaryScreen NOTIFY primaryScreenChanged)
59#endif
60public:
61 QDesktopWidget();
62 ~QDesktopWidget();
63
64 int screenNumber(const QWidget *widget = nullptr) const;
65 const QRect screenGeometry(const QWidget *widget) const;
66 const QRect availableGeometry(const QWidget *widget) const;
67
68#if QT_DEPRECATED_SINCE(5, 11)
69 QT_DEPRECATED_X("Use QScreen::virtualSiblings() of primary screen") bool isVirtualDesktop() const;
70
71 QT_DEPRECATED_X("Use QGuiApplication::screens()") int numScreens() const;
72 QT_DEPRECATED_X("Use QGuiApplication::screens()") int screenCount() const;
73 QT_DEPRECATED_X("Use QGuiApplication::primaryScreen()") int primaryScreen() const;
74
75 QT_DEPRECATED_X("Use QGuiApplication::screenAt()") int screenNumber(const QPoint &) const;
76
77 QT_DEPRECATED_X("Use QScreen") QWidget *screen(int screen = -1);
78
79 QT_DEPRECATED_X("Use QGuiApplication::screens()") const QRect screenGeometry(int screen = -1) const;
80 QT_DEPRECATED_X("Use QGuiApplication::screenAt()") const QRect screenGeometry(const QPoint &point) const
81 {
82QT_WARNING_PUSH
83QT_WARNING_DISABLE_DEPRECATED
84 return screenGeometry(screen: screenNumber(point));
85QT_WARNING_POP
86 }
87
88 QT_DEPRECATED_X("Use QGuiApplication::screens()") const QRect availableGeometry(int screen = -1) const;
89 QT_DEPRECATED_X("Use QGuiApplication::screenAt()") const QRect availableGeometry(const QPoint &point) const
90 {
91QT_WARNING_PUSH
92QT_WARNING_DISABLE_DEPRECATED
93 return availableGeometry(screen: screenNumber(point));
94QT_WARNING_POP
95 }
96
97Q_SIGNALS:
98 QT_DEPRECATED_X("Use QScreen::geometryChanged()") void resized(int);
99 QT_DEPRECATED_X("Use QScreen::availableGeometryChanged()") void workAreaResized(int);
100 QT_DEPRECATED_X("Use QGuiApplication::screenAdded/Removed()") void screenCountChanged(int);
101 QT_DEPRECATED_X("Use QGuiApplication::primaryScreenChanged()") void primaryScreenChanged();
102#endif
103
104protected:
105 void resizeEvent(QResizeEvent *e) override;
106
107private:
108 Q_DISABLE_COPY(QDesktopWidget)
109 Q_DECLARE_PRIVATE(QDesktopWidget)
110 Q_PRIVATE_SLOT(d_func(), void _q_updateScreens())
111 Q_PRIVATE_SLOT(d_func(), void _q_availableGeometryChanged())
112
113 friend class QApplication;
114 friend class QApplicationPrivate;
115};
116
117#if QT_DEPRECATED_SINCE(5, 11)
118inline int QDesktopWidget::screenCount() const
119{
120QT_WARNING_PUSH
121QT_WARNING_DISABLE_DEPRECATED
122 return numScreens();
123QT_WARNING_POP
124}
125#endif
126
127QT_END_NAMESPACE
128
129#endif // QDESKTOPWIDGET_H
130

source code of qtbase/src/widgets/kernel/qdesktopwidget.h