summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/windows/qwindowsscreen.h
blob: 49581db41af035f0f6f7525fae9225610e95d62b (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
154
155
156
157
158
159
160
161
162
163
/****************************************************************************
**
** Copyright (C) 2014 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"
#include "qwindowsscaling.h"
#ifdef Q_OS_WINCE
#  include "qplatformfunctions_wince.h"
#endif

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

QT_BEGIN_NAMESPACE

struct QWindowsScreenData
{
    enum Flags
    {
        PrimaryScreen = 0x1,
        VirtualDesktop = 0x2,
        LockScreen = 0x4 // Temporary screen existing during user change, etc.
    };

    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);

    QRect geometryDp() const { return m_data.geometry; }
    QRect geometry() const Q_DECL_OVERRIDE { return QWindowsScaling::mapFromNative(geometryDp()); }
    QRect availableGeometryDp() const { return m_data.availableGeometry; }
    QRect availableGeometry() const Q_DECL_OVERRIDE { return QWindowsScaling::mapFromNative(availableGeometryDp()); }
    int depth() const Q_DECL_OVERRIDE { return m_data.depth; }
    QImage::Format format() const Q_DECL_OVERRIDE { return m_data.format; }
    QSizeF physicalSize() const Q_DECL_OVERRIDE { return m_data.physicalSizeMM; }
    QDpi logicalDpi() const Q_DECL_OVERRIDE
        { return QDpi(m_data.dpi.first / QWindowsScaling::factor(), m_data.dpi.second / QWindowsScaling::factor()); }
    qreal devicePixelRatio() const Q_DECL_OVERRIDE { return QWindowsScaling::factor(); }
    qreal refreshRate() const Q_DECL_OVERRIDE { return m_data.refreshRateHz; }
    QString name() const Q_DECL_OVERRIDE { return m_data.name; }
    Qt::ScreenOrientation orientation() const Q_DECL_OVERRIDE { return m_data.orientation; }
    QList<QPlatformScreen *> virtualSiblings() const Q_DECL_OVERRIDE;
    QWindow *topLevelAt(const QPoint &point) const Q_DECL_OVERRIDE
        {  return QWindowsScreen::findTopLevelAt(point * QWindowsScaling::factor() , 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);

    QPixmap grabWindow(WId window, int qX, int qY, int qWidth, int qHeight) const Q_DECL_OVERRIDE;

    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; }
    static int maxMonitorHorizResolution();

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:
    void removeScreen(int index);

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

QT_END_NAMESPACE

#endif // QWINDOWSSCREEN_H