summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/minimal/qminimalbackingstore.cpp
blob: 5336dbf3bd2da5255372f5ee0d27dc5baa57fb6c (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
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/


#include "qminimalbackingstore.h"
#include "qscreen.h"
#include <QtCore/qdebug.h>
#include <QtGui/QPlatformScreen>
#include <private/qguiapplication_p.h>

QT_BEGIN_NAMESPACE

QMinimalBackingStore::QMinimalBackingStore(QWindow *window)
    : QPlatformBackingStore(window),mDebug(false)
{
    if (QT_PREPEND_NAMESPACE(qgetenv)("QT_DEBUG_BACKINGSTORE").toInt() > 0)
        mDebug = true;
    if (mDebug)
        qDebug() << "QMinimalBackingStore::QMinimalBackingStore:" << (quintptr)this;
}

QMinimalBackingStore::~QMinimalBackingStore()
{
}

QPaintDevice *QMinimalBackingStore::paintDevice()
{
    if (mDebug)
        qDebug() << "QMinimalBackingStore::paintDevice";

    return &mImage;
}

void QMinimalBackingStore::flush(QWindow *window, const QRegion &region, const QPoint &offset)
{
    Q_UNUSED(window);
    Q_UNUSED(region);
    Q_UNUSED(offset);

    if (mDebug) {
        static int c = 0;
        QString filename = QString("output%1.png").arg(c++, 4, 10, QLatin1Char('0'));
        qDebug() << "QMinimalBackingStore::flush() saving contents to" << filename.toLocal8Bit().constData();
        mImage.save(filename);
    }
}

void QMinimalBackingStore::resize(const QSize &size, const QRegion &)
{
    QImage::Format format = QGuiApplication::primaryScreen()->handle()->format();
    if (mImage.size() != size)
        mImage = QImage(size, format);
}

QT_END_NAMESPACE