1 files changed, 91 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/rendernode/softwarerenderer.cpp b/examples/quick/scenegraph/rendernode/softwarerenderer.cpp
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+++ b/examples/quick/scenegraph/rendernode/softwarerenderer.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * 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.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "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 THE COPYRIGHT
+** OWNER 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "softwarerenderer.h"
+#include <QQuickItem>
+#include <QQuickWindow>
+#include <QSGRendererInterface>
+#include <QPainter>
+
+SoftwareRenderNode::SoftwareRenderNode(QQuickItem *item)
+    : m_item(item)
+{
+}
+
+SoftwareRenderNode::~SoftwareRenderNode()
+{
+    releaseResources();
+}
+
+void SoftwareRenderNode::releaseResources()
+{
+}
+
+void SoftwareRenderNode::render(const RenderState *renderState)
+{
+    QSGRendererInterface *rif = m_item->window()->rendererInterface();
+    QPainter *p = static_cast<QPainter *>(rif->getResource(m_item->window(), QSGRendererInterface::Painter));
+    Q_ASSERT(p);
+
+    p->setTransform(matrix()->toTransform());
+    p->setOpacity(inheritedOpacity());
+    const QRegion *clipRegion = renderState->clipRegion();
+    if (clipRegion && !clipRegion->isEmpty())
+        p->setClipRegion(*clipRegion);
+
+    const QPointF p0(m_item->width() - 1, m_item->height() - 1);
+    const QPointF p1(0, 0);
+    const QPointF p2(0, m_item->height() - 1);
+    QPainterPath path(p0);
+    path.lineTo(p1);
+    path.lineTo(p2);
+    path.closeSubpath();
+
+    QLinearGradient gradient(QPointF(0, 0), QPointF(m_item->width(), m_item->height()));
+    gradient.setColorAt(0, Qt::green);
+    gradient.setColorAt(1, Qt::red);
+
+    p->fillPath(path, gradient);
+}
+
+QSGRenderNode::StateFlags SoftwareRenderNode::changedStates() const
+{
+    return 0;
+}