diff options
Diffstat (limited to 'src/plugins/platforms/vnc/qvncscreen.cpp')
| -rw-r--r-- | src/plugins/platforms/vnc/qvncscreen.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/plugins/platforms/vnc/qvncscreen.cpp b/src/plugins/platforms/vnc/qvncscreen.cpp new file mode 100644 index 0000000000..6d117c62bf --- /dev/null +++ b/src/plugins/platforms/vnc/qvncscreen.cpp @@ -0,0 +1,187 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qvncscreen.h" +#include "qvnc_p.h" +#include <QtPlatformSupport/private/qfbwindow_p.h> +#include <QtPlatformSupport/private/qfbcursor_p.h> + +#include <QtGui/QPainter> +#include <QtCore/QRegularExpression> + + +QT_BEGIN_NAMESPACE + + +QVncScreen::QVncScreen(const QStringList &args) + : mArgs(args) +{ + initialize(); +} + +QVncScreen::~QVncScreen() +{ + if (clientCursor) + delete clientCursor; +} + +bool QVncScreen::initialize() +{ + QRegularExpression sizeRx(QLatin1String("size=(\\d+)x(\\d+)")); + QRegularExpression mmSizeRx(QLatin1String("mmsize=(?<width>(\\d*\\.)?\\d+)x(?<height>(\\d*\\.)?\\d+)")); + QRegularExpression depthRx(QLatin1String("depth=(\\d+)")); + + mGeometry = QRect(0, 0, 1024, 768); + mFormat = QImage::Format_ARGB32_Premultiplied; + mDepth = 32; + mPhysicalSize = QSizeF(mGeometry.width()/96.*25.4, mGeometry.height()/96.*25.4); + + for (const QString &arg : mArgs) { + QRegularExpressionMatch match; + if (arg.contains(mmSizeRx, &match)) { + mPhysicalSize = QSizeF(match.captured("width").toDouble(), match.captured("height").toDouble()); + } else if (arg.contains(sizeRx, &match)) { + mGeometry.setSize(QSize(match.captured(1).toInt(), match.captured(2).toInt())); + } else if (arg.contains(depthRx, &match)) { + mDepth = match.captured(1).toInt(); + } + } + + QFbScreen::initializeCompositor(); + + switch (depth()) { + case 32: + dirty = new QVncDirtyMapOptimized<quint32>(this); + break; + case 16: + dirty = new QVncDirtyMapOptimized<quint16>(this); + break; + case 8: + dirty = new QVncDirtyMapOptimized<quint8>(this); + break; + default: + qWarning("QVNCScreen::initDevice: No support for screen depth %d", + depth()); + dirty = 0; + return false; + } + + setPowerState(PowerStateOff); + + return true; +} + +QRegion QVncScreen::doRedraw() +{ + QRegion touched = QFbScreen::doRedraw(); + + if (touched.isEmpty()) + return touched; + dirtyRegion += touched; + + vncServer->setDirty(); + return touched; +} + +void QVncScreen::enableClientCursor(QVncClient *client) +{ + delete mCursor; + mCursor = nullptr; + if (!clientCursor) + clientCursor = new QVncClientCursor(); + clientCursor->addClient(client); +} + +void QVncScreen::disableClientCursor(QVncClient *client) +{ + uint clientCount = clientCursor->removeClient(client); + if (clientCount == 0) { + delete clientCursor; + clientCursor = nullptr; + } + + mCursor = new QFbCursor(this); +} + +QPlatformCursor *QVncScreen::cursor() const +{ + return mCursor ? static_cast<QPlatformCursor *>(mCursor) : static_cast<QPlatformCursor *>(clientCursor); +} + +// grabWindow() grabs "from the screen" not from the backingstores. +// In linuxfb's case it will also include the mouse cursor. +QPixmap QVncScreen::grabWindow(WId wid, int x, int y, int width, int height) const +{ + if (!wid) { + if (width < 0) + width = mScreenImage->width() - x; + if (height < 0) + height = mScreenImage->height() - y; + return QPixmap::fromImage(*mScreenImage).copy(x, y, width, height); + } + + QFbWindow *window = windowForId(wid); + if (window) { + const QRect geom = window->geometry(); + if (width < 0) + width = geom.width() - x; + if (height < 0) + height = geom.height() - y; + QRect rect(geom.topLeft() + QPoint(x, y), QSize(width, height)); + rect &= window->geometry(); + return QPixmap::fromImage(*mScreenImage).copy(rect); + } + + return QPixmap(); +} + +#if Q_BYTE_ORDER == Q_BIG_ENDIAN +bool QVNCScreen::swapBytes() const +{ + if (depth() != 16) + return false; + + if (screen()) + return screen()->frameBufferLittleEndian(); + return frameBufferLittleEndian(); +} +#endif + +QT_END_NAMESPACE + |