summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/windows/qwindowsscreen.h
blob: 216973125b8febbc07419acec2ea55d43e7eb10b (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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWINDOWSSCREEN_H
#define QWINDOWSSCREEN_H

#include "qwindowscursor.h"
#ifdef Q_OS_WINCE
#  include "qplatformfunctions_wince.h"
#endif

#include <QtCore/QList>
#include <QtCore/QPair>
#include <QtCore/QSharedPointer>
#include <qpa/qplatformscreen.h>

QT_BEGIN_NAMESPACE

struct QWindowsScreenData
{
    enum Flags
    {
        PrimaryScreen = 0x1,
        VirtualDesktop = 0x2
    };

    QWindowsScreenData();

    QRect geometry;
    QRect availableGeometry;
    QDpi dpi;
    QSizeF physicalSizeMM;
    int depth;
    QImage::Format format;
    unsigned flags;
    QString name;
    Qt::ScreenOrientation orientation;
    qreal refreshRateHz;
};

class QWindowsScreen : public QPlatformScreen
{
public:
#ifndef QT_NO_CURSOR
    typedef QSharedPointer<QWindowsCursor> WindowsCursorPtr;
#endif

    explicit QWindowsScreen(const QWindowsScreenData &data);

    static QWindowsScreen *screenOf(const QWindow *w = 0);

    virtual QRect geometry() const { return m_data.geometry; }
    virtual QRect availableGeometry() const { return m_data.availableGeometry; }
    virtual int depth() const { return m_data.depth; }
    virtual QImage::Format format() const { return m_data.format; }
    virtual QSizeF physicalSize() const { return m_data.physicalSizeMM; }
    virtual QDpi logicalDpi() const { return m_data.dpi; }
    virtual qreal refreshRate() const { return m_data.refreshRateHz; }
    virtual QString name() const { return m_data.name; }
    virtual Qt::ScreenOrientation primaryOrientation() { return m_data.orientation; }
    virtual QList<QPlatformScreen *> virtualSiblings() const;
    virtual QWindow *topLevelAt(const QPoint &point) const
        {  return QWindowsScreen::findTopLevelAt(point, CWP_SKIPINVISIBLE);  }

    static QWindow *findTopLevelAt(const QPoint &point, unsigned flags);
    static QWindow *windowAt(const QPoint &point, unsigned flags = CWP_SKIPINVISIBLE);
    static QWindow *windowUnderMouse(unsigned flags = CWP_SKIPINVISIBLE);

    virtual QPixmap grabWindow(WId window, int x, int y, int width, int height) const;

    inline void handleChanges(const QWindowsScreenData &newData);

#ifndef QT_NO_CURSOR
    QPlatformCursor *cursor() const               { return m_cursor.data(); }
    const WindowsCursorPtr &windowsCursor() const { return m_cursor; }
#else
    QPlatformCursor *cursor() const               { return 0; }
#endif // !QT_NO_CURSOR

    const QWindowsScreenData &data() const  { return m_data; }

private:
    QWindowsScreenData m_data;
#ifndef QT_NO_CURSOR
    const WindowsCursorPtr m_cursor;
#endif
};

class QWindowsScreenManager
{
public:
    typedef QList<QWindowsScreen *> WindowsScreenList;

    QWindowsScreenManager();

    inline void clearScreens() {
        // Delete screens in reverse order to avoid crash in case of multiple screens
        while (!m_screens.isEmpty())
            delete m_screens.takeLast();
    }

    bool handleScreenChanges();
    bool handleDisplayChange(WPARAM wParam, LPARAM lParam);
    const WindowsScreenList &screens() const { return m_screens; }

private:
    WindowsScreenList m_screens;
    int m_lastDepth;
    WORD m_lastHorizontalResolution;
    WORD m_lastVerticalResolution;
};

QT_END_NAMESPACE

#endif // QWINDOWSSCREEN_H