1 files changed, 106 insertions, 0 deletions
diff --git a/src/gui/kernel/qshapedpixmapdndwindow.cpp b/src/gui/kernel/qshapedpixmapdndwindow.cpp
new file mode 100644
index 0000000000..b3e64b01d0
--- /dev/null
+++ b/src/gui/kernel/qshapedpixmapdndwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qshapedpixmapdndwindow_p.h"
+
+#include <QtGui/QPainter>
+#include <QtGui/QCursor>
+
+QT_BEGIN_NAMESPACE
+
+QShapedPixmapWindow::QShapedPixmapWindow()
+    : QWindow(),
+      m_backingStore(0)
+{
+    QSurfaceFormat format;
+    format.setAlphaBufferSize(8);
+    setFormat(format);
+    setSurfaceType(RasterSurface);
+    setFlags(Qt::ToolTip | Qt::FramelessWindowHint |
+                   Qt::X11BypassWindowManagerHint | Qt::WindowTransparentForInput);
+    create();
+    m_backingStore = new QBackingStore(this);
+}
+
+void QShapedPixmapWindow::render()
+{
+    QRect rect(QPoint(), geometry().size());
+
+    m_backingStore->beginPaint(rect);
+
+    QPaintDevice *device = m_backingStore->paintDevice();
+
+    {
+        QPainter p(device);
+        p.setCompositionMode(QPainter::CompositionMode_Source);
+        p.drawPixmap(0, 0, m_pixmap);
+    }
+
+    m_backingStore->endPaint();
+    m_backingStore->flush(rect);
+}
+
+void QShapedPixmapWindow::setPixmap(const QPixmap &pixmap)
+{
+    m_pixmap = pixmap;
+}
+
+void QShapedPixmapWindow::setHotspot(const QPoint &hotspot)
+{
+    m_hotSpot = hotspot;
+}
+
+void QShapedPixmapWindow::updateGeometry()
+{
+    QRect rect(QCursor::pos() - m_hotSpot, m_pixmap.size());
+    if (m_pixmap.isNull())
+        m_backingStore->resize(QSize(1,1));
+    else if (m_backingStore->size() != m_pixmap.size())
+        m_backingStore->resize(m_pixmap.size());
+    setGeometry(rect);
+}
+
+void QShapedPixmapWindow::exposeEvent(QExposeEvent *)
+{
+    render();
+}
+
+QT_END_NAMESPACE