Refactoring GraphicsSystem to QPlatformIntegration

QPlatformIntegration is the "main" integration class which needs to be
subclassed.

This is done so that we don't pollute GraphicsSystem with functionality
that really does not belong there.

In lighthouse applications needs now to be started with
-platform some_platform

1 files changed, 156 insertions, 0 deletions

diff --git a/src/plugins/platforms/vnc/qvnccursor.cpp b/src/plugins/platforms/vnc/qvnccursor.cpp
new file mode 100644
index 0000000..fb214d8
--- /dev/null
+++ b/src/plugins/platforms/vnc/qvnccursor.cpp
@@ -0,0 +1,156 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenVG module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QPainter>
+#include <QTcpSocket>
+#include <arpa/inet.h>
+#include <QBitmap>
+#include <QApplication>
+
+#include <QDebug>
+
+#include "qvnccursor.h"
+#include "qvncserver.h"
+#include "qgraphicssystem_vnc.h"
+
+QT_BEGIN_NAMESPACE
+
+QVNCCursor::QVNCCursor(QVNCServer * srvr, QVNCGraphicsSystemScreen *scr )
+        :QGraphicsSystemSoftwareCursor(scr), useVncCursor(false), server(srvr)
+{
+}
+
+void QVNCCursor::changeCursor(QCursor * widgetCursor, QWidget * widget)
+{
+    QGraphicsSystemSoftwareCursor::changeCursor(widgetCursor, widget);
+    if (useVncCursor) {
+        server->setDirtyCursor();
+    } else {
+        screen->setDirty(QRect(0,0,1,1));
+    }
+}
+
+void QVNCCursor::setCursorMode(bool vnc)
+{
+    if (vnc) {
+        screen->setDirty(dirtyRect());
+        server->setDirtyCursor();
+    } else {
+        server->setDirtyCursor();
+    }
+    useVncCursor = vnc;
+}
+
+QRect QVNCCursor::drawCursor(QPainter & painter)
+{
+    if (useVncCursor)
+        return QRect();
+
+    return QGraphicsSystemSoftwareCursor::drawCursor(painter);
+}
+
+void QVNCCursor::clearClientCursor()
+{
+    QTcpSocket *socket = server->clientSocket();
+    if (!socket) {
+        return;
+    }
+    // FramebufferUpdate header
+    {
+        const quint16 tmp[6] = { htons(0),
+                                 htons(1),
+                                 htons(0), htons(0),
+                                 htons(0),
+                                 htons(0) };
+        socket->write((char*)tmp, sizeof(tmp));
+
+        const quint32 encoding = htonl(-239);
+        socket->write((char*)(&encoding), sizeof(encoding));
+    }
+}
+
+void QVNCCursor::sendClientCursor()
+{
+    if (useVncCursor == false) {
+        clearClientCursor();
+        return;
+    }
+    QImage *image = graphic->image();
+    if (image->isNull())
+        return;
+    QTcpSocket *socket = server->clientSocket();
+    if (!socket) {
+        return;
+    }
+    // FramebufferUpdate header
+    {
+        const quint16 tmp[6] = { htons(0),
+                                 htons(1),
+                                 htons(graphic->hotspot().x()), htons(graphic->hotspot().y()),
+                                 htons(image->width()),
+                                 htons(image->height()) };
+        socket->write((char*)tmp, sizeof(tmp));
+
+        const quint32 encoding = htonl(-239);
+        socket->write((char*)(&encoding), sizeof(encoding));
+    }
+
+    // write pixels
+    //Q_ASSERT(cursor->hasAlphaChannel());
+    const QImage img = image->convertToFormat(QImage::Format_RGB32);
+    const int n = server->clientBytesPerPixel() * img.width();
+    char *buffer = new char[n];
+    for (int i = 0; i < img.height(); ++i) {
+        server->convertPixels(buffer, (const char*)img.scanLine(i), img.width());
+        socket->write(buffer, n);
+    }
+    delete[] buffer;
+
+    // write mask
+    const QImage bitmap = image->createAlphaMask().convertToFormat(QImage::Format_Mono);
+    Q_ASSERT(bitmap.depth() == 1);
+    Q_ASSERT(bitmap.size() == img.size());
+    const int width = (bitmap.width() + 7) / 8;
+    for (int i = 0; i < bitmap.height(); ++i)
+        socket->write((const char*)bitmap.scanLine(i), width);
+}
+
+QT_END_NAMESPACE