diff options
Diffstat (limited to 'examples/quick/scenegraph/rendernode/customrenderitem.h')
-rw-r--r-- | examples/quick/scenegraph/rendernode/customrenderitem.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/rendernode/customrenderitem.h b/examples/quick/scenegraph/rendernode/customrenderitem.h new file mode 100644 index 0000000000..fb4c392148 --- /dev/null +++ b/examples/quick/scenegraph/rendernode/customrenderitem.h @@ -0,0 +1,93 @@ +/**************************************************************************** +** +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CUSTOMRENDERITEM_H +#define CUSTOMRENDERITEM_H + +#include <QQuickItem> +#include <QSGRenderNode> + +class CustomRenderer +{ +public: + virtual ~CustomRenderer() { } + virtual void init() = 0; + virtual void render(const QSGRenderNode::RenderState *state) = 0; +}; + +class CustomRenderNode : public QSGRenderNode +{ +public: + CustomRenderNode(QQuickItem *item) : m_item(item) { } + ~CustomRenderNode(); + + void render(const RenderState *state) override; + void releaseResources() override; + +private: + QQuickItem *m_item; + int m_api; + CustomRenderer *m_renderer = nullptr; +}; + +class CustomRenderItem : public QQuickItem +{ + Q_OBJECT + Q_PROPERTY(QString graphicsAPI READ graphicsAPI NOTIFY graphicsAPIChanged) + +public: + CustomRenderItem(QQuickItem *parent = nullptr); + + QSGNode *updatePaintNode(QSGNode *node, UpdatePaintNodeData *) override; + + QString graphicsAPI() const { return m_api; } + +private slots: + void onWindowChanged(QQuickWindow *w); + void updateGraphicsAPI(); + +signals: + void graphicsAPIChanged(); + +private: + QString m_api; +}; + +#endif |