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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists for the convenience
45// of other Qt classes. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#ifndef QDESKTOPWIDGET_P_H
52#define QDESKTOPWIDGET_P_H
53
54#include <QtWidgets/private/qtwidgetsglobal_p.h>
55#include "QDesktopWidget"
56#include "private/qwidget_p.h"
57
58#include <QtCore/qalgorithms.h>
59#include <QtGui/qscreen.h>
60
61QT_BEGIN_NAMESPACE
62
63class QDesktopScreenWidget : public QWidget {
64 Q_OBJECT
65public:
66 explicit QDesktopScreenWidget(QScreen *screen, const QRect &geometry);
67
68 int screenNumber() const;
69 void setScreenGeometry(const QRect &geometry);
70
71 QScreen *screen() const { return m_screen.data(); }
72 QRect screenGeometry() const { return m_geometry; }
73
74private:
75 // The widget updates its screen and geometry automatically. We need to save them separately
76 // to detect changes, and trigger the appropriate signals.
77 const QPointer<QScreen> m_screen;
78 QRect m_geometry;
79};
80
81class QDesktopWidgetPrivate : public QWidgetPrivate {
82 Q_DECLARE_PUBLIC(QDesktopWidget)
83
84public:
85 ~QDesktopWidgetPrivate() { qDeleteAll(screens); }
86 void _q_updateScreens();
87 void _q_availableGeometryChanged();
88 QDesktopScreenWidget *widgetForScreen(QScreen *qScreen) const;
89
90 static bool isVirtualDesktop();
91
92 static QRect geometry();
93 static QSize size();
94 static int width();
95 static int height();
96
97 static int numScreens();
98 static int primaryScreen();
99
100 static int screenNumber(const QWidget *widget = nullptr);
101 static int screenNumber(const QPoint &);
102
103 static QScreen *screen(int screenNo = -1);
104
105 static const QRect screenGeometry(int screen = -1);
106 static const QRect screenGeometry(const QWidget *widget);
107 static const QRect screenGeometry(const QPoint &point)
108 { return screenGeometry(screenNumber(point)); }
109
110 static const QRect availableGeometry(int screen = -1);
111 static const QRect availableGeometry(const QWidget *widget);
112 static const QRect availableGeometry(const QPoint &point)
113 { return availableGeometry(screenNumber(point)); }
114
115 QList<QDesktopScreenWidget *> screens;
116};
117
118QT_END_NAMESPACE
119
120#endif // QDESKTOPWIDGET_QPA_P_H
121