qwindowsdirect2dbackingstore.cpp

Enable keyboard shortcuts

// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#include "qwindowsdirect2dbackingstore.h"

#include "qwindowsdirect2dplatformpixmap.h"

#include "qwindowsdirect2dintegration.h"

#include "qwindowsdirect2dcontext.h"

#include "qwindowsdirect2dpaintdevice.h"

#include "qwindowsdirect2dbitmap.h"

#include "qwindowsdirect2ddevicecontext.h"

#include "qwindowsdirect2dwindow.h"

#include "qwindowscontext.h"

#include <QtGui/qpainter.h>

#include <QtGui/qwindow.h>

#include <QtCore/qdebug.h>

QT_BEGIN_NAMESPACE

/*!

    \class QWindowsDirect2DBackingStore

    \brief Backing store for windows.

    \internal

*/

static inline QWindowsDirect2DPlatformPixmap *platformPixmap(QPixmap *p)

    return static_cast<QWindowsDirect2DPlatformPixmap *>(p->handle());

static inline QWindowsDirect2DBitmap *bitmap(QPixmap *p)

    return platformPixmap(p)->bitmap();

static inline QWindowsDirect2DWindow *nativeWindow(QWindow *window)

    return static_cast<QWindowsDirect2DWindow *>(window->handle());

QWindowsDirect2DBackingStore::QWindowsDirect2DBackingStore(QWindow *window)

    : QPlatformBackingStore(window)

QWindowsDirect2DBackingStore::~QWindowsDirect2DBackingStore()

void QWindowsDirect2DBackingStore::beginPaint(const QRegion &region)

    QPixmap *pixmap = nativeWindow(window())->pixmap();

    bitmap(pixmap)->deviceContext()->begin();

    QPainter painter(pixmap);

    QColor clear(Qt::transparent);

    painter.setCompositionMode(QPainter::CompositionMode_Source);

    for (const QRect &r : region)

        painter.fillRect(r, clear);

void QWindowsDirect2DBackingStore::endPaint()

    bitmap(nativeWindow(window())->pixmap())->deviceContext()->end();

QPaintDevice *QWindowsDirect2DBackingStore::paintDevice()

    return nativeWindow(window())->pixmap();

void QWindowsDirect2DBackingStore::flush(QWindow *targetWindow, const QRegion &region, const QPoint &offset)

    if (targetWindow != window()) {

        QSharedPointer<QWindowsDirect2DBitmap> copy(nativeWindow(window())->copyBackBuffer());

        nativeWindow(targetWindow)->flush(copy.data(), region, offset);

    nativeWindow(targetWindow)->present(region);

void QWindowsDirect2DBackingStore::resize(const QSize &size, const QRegion &region)

    QPixmap old = nativeWindow(window())->pixmap()->copy();

    nativeWindow(window())->resizeSwapChain(size);

    QPixmap *newPixmap = nativeWindow(window())->pixmap();

    if (!old.isNull()) {

        for (const QRect &rect : region)

            platformPixmap(newPixmap)->copy(old.handle(), rect);

QImage QWindowsDirect2DBackingStore::toImage() const

    return nativeWindow(window())->pixmap()->toImage();

QT_END_NAMESPACE