summaryrefslogtreecommitdiffstats
path: root/src/widgets/kernel/qdesktopwidget.h
blob: c0cc4f1b81f651e2b035cbfdcfc905cfa3c5ef45 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDESKTOPWIDGET_H
#define QDESKTOPWIDGET_H

#include <QtWidgets/qwidget.h>

QT_BEGIN_NAMESPACE


class QApplication;
class QDesktopWidgetPrivate;

class Q_WIDGETS_EXPORT QDesktopWidget : public QWidget
{
    Q_OBJECT
    Q_PROPERTY(bool virtualDesktop READ isVirtualDesktop)
    Q_PROPERTY(int screenCount READ screenCount NOTIFY screenCountChanged)
    Q_PROPERTY(int primaryScreen READ primaryScreen)
public:
    QDesktopWidget();
    ~QDesktopWidget();

    bool isVirtualDesktop() const;

    int numScreens() const;
    int screenCount() const;
    int primaryScreen() const;

    int screenNumber(const QWidget *widget = Q_NULLPTR) const;
    int screenNumber(const QPoint &) const;

    QWidget *screen(int screen = -1);

    const QRect screenGeometry(int screen = -1) const;
    const QRect screenGeometry(const QWidget *widget) const;
    const QRect screenGeometry(const QPoint &point) const
    { return screenGeometry(screenNumber(point)); }

    const QRect availableGeometry(int screen = -1) const;
    const QRect availableGeometry(const QWidget *widget) const;
    const QRect availableGeometry(const QPoint &point) const
    { return availableGeometry(screenNumber(point)); }

Q_SIGNALS:
    void resized(int);
    void workAreaResized(int);
    void screenCountChanged(int);

protected:
    void resizeEvent(QResizeEvent *e) Q_DECL_OVERRIDE;

private:
    Q_DISABLE_COPY(QDesktopWidget)
    Q_DECLARE_PRIVATE(QDesktopWidget)
    Q_PRIVATE_SLOT(d_func(), void _q_updateScreens())
    Q_PRIVATE_SLOT(d_func(), void _q_availableGeometryChanged())

    friend class QApplication;
    friend class QApplicationPrivate;
};

inline int QDesktopWidget::screenCount() const
{ return numScreens(); }

QT_END_NAMESPACE

#endif // QDESKTOPWIDGET_H