webengine/osswebengine/WebCore/platform/graphics/qt/ImageBufferQt.cpp
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/qt/ImageBufferQt.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "ImageBuffer.h"
+
+#include "GraphicsContext.h"
+
+#include <QPainter>
+#include <QPixmap>
+
+namespace WebCore {
+
+std::auto_ptr<ImageBuffer> ImageBuffer::create(const IntSize& size, bool grayScale)
+{
+    QPixmap px(size);
+    return std::auto_ptr<ImageBuffer>(new ImageBuffer(px));
+}
+
+ImageBuffer::ImageBuffer(const QPixmap& px)
+    : m_pixmap(px),
+      m_painter(0)
+{
+    m_painter = new QPainter(&m_pixmap);
+    m_context.set(new GraphicsContext(m_painter));
+}
+
+ImageBuffer::~ImageBuffer()
+{
+    delete m_painter;
+}
+
+GraphicsContext* ImageBuffer::context() const
+{
+    if (!m_painter->isActive())
+        m_painter->begin(&m_pixmap);
+
+    return m_context.get();
+}
+
+QPixmap* ImageBuffer::pixmap() const
+{
+    if (!m_painter)
+        return &m_pixmap;
+    if (m_painter->isActive())
+        m_painter->end();
+    return &m_pixmap;
+}
+
+}