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39
40
41#include "qminimalbackingstore.h"
42#include "qminimalintegration.h"
43#include "qscreen.h"
44#include <QtCore/qdebug.h>
45#include <qpa/qplatformscreen.h>
46#include <private/qguiapplication_p.h>
47
48QT_BEGIN_NAMESPACE
49
50QMinimalBackingStore::QMinimalBackingStore(QWindow *window)
51 : QPlatformBackingStore(window)
52 , mDebug(QMinimalIntegration::instance()->options() & QMinimalIntegration::DebugBackingStore)
53{
54 if (mDebug)
55 qDebug() << "QMinimalBackingStore::QMinimalBackingStore:" << (quintptr)this;
56}
57
58QMinimalBackingStore::~QMinimalBackingStore()
59{
60}
61
62QPaintDevice *QMinimalBackingStore::paintDevice()
63{
64 if (mDebug)
65 qDebug(msg: "QMinimalBackingStore::paintDevice");
66
67 return &mImage;
68}
69
70void QMinimalBackingStore::flush(QWindow *window, const QRegion &region, const QPoint &offset)
71{
72 Q_UNUSED(window);
73 Q_UNUSED(region);
74 Q_UNUSED(offset);
75
76 if (mDebug) {
77 static int c = 0;
78 QString filename = QString("output%1.png").arg(a: c++, fieldWidth: 4, base: 10, fillChar: QLatin1Char('0'));
79 qDebug() << "QMinimalBackingStore::flush() saving contents to" << filename.toLocal8Bit().constData();
80 mImage.save(fileName: filename);
81 }
82}
83
84void QMinimalBackingStore::resize(const QSize &size, const QRegion &)
85{
86 QImage::Format format = QGuiApplication::primaryScreen()->handle()->format();
87 if (mImage.size() != size)
88 mImage = QImage(size, format);
89}
90
91QT_END_NAMESPACE
92

source code of qtbase/src/plugins/platforms/minimal/qminimalbackingstore.cpp