/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QML Shaders plugin of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** 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. | |
** | |
** 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. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
** | |
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** $QT_END_LICENSE$ | |
** | |
****************************************************************************/ | |
#ifndef SHADEREFFECTITEM_H | |
#define SHADEREFFECTITEM_H | |
#include <QDeclarativeItem> | |
#include <QtOpenGL> | |
#include "shadereffectsource.h" | |
#include "scenegraph/qsggeometry.h" | |
QT_BEGIN_HEADER | |
QT_BEGIN_NAMESPACE | |
class ShaderEffectItem : public QDeclarativeItem | |
{ | |
Q_OBJECT | |
Q_INTERFACES(QDeclarativeParserStatus) | |
Q_PROPERTY(QString fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged) | |
Q_PROPERTY(QString vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged) | |
Q_PROPERTY(bool blending READ blending WRITE setBlending NOTIFY blendingChanged) | |
Q_PROPERTY(QSize meshResolution READ meshResolution WRITE setMeshResolution NOTIFY meshResolutionChanged) | |
public: | |
ShaderEffectItem(QDeclarativeItem* parent = 0); | |
~ShaderEffectItem(); | |
virtual void componentComplete(); | |
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); | |
QString fragmentShader() const { return m_fragment_code; } | |
void setFragmentShader(const QString &code); | |
QString vertexShader() const { return m_vertex_code; } | |
void setVertexShader(const QString &code); | |
bool blending() const { return m_blending; } | |
void setBlending(bool enable); | |
QSize meshResolution() const { return m_meshResolution; } | |
void setMeshResolution(const QSize &size); | |
void preprocess(); | |
Q_SIGNALS: | |
void fragmentShaderChanged(); | |
void vertexShaderChanged(); | |
void blendingChanged(); | |
void activeChanged(); | |
void meshResolutionChanged(); | |
protected: | |
virtual void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry); | |
private Q_SLOTS: | |
void changeSource(int index); | |
void handleVisibilityChange(); | |
void markDirty(); | |
private: | |
void checkViewportUpdateMode(); | |
void renderEffect(QPainter *painter, const QMatrix4x4 &matrix); | |
void updateEffectState(const QMatrix4x4 &matrix); | |
void updateGeometry(); | |
void bindGeometry(); | |
void setSource(const QVariant &var, int index); | |
void disconnectPropertySignals(); | |
void connectPropertySignals(); | |
void reset(); | |
void updateProperties(); | |
void updateShaderProgram(); | |
void lookThroughShaderCode(const QString &code); | |
bool active() const { return m_active; } | |
void setActive(bool enable); | |
private: | |
QString m_fragment_code; | |
QString m_vertex_code; | |
QGLShaderProgram m_program; | |
QVector<const char *> m_attributeNames; | |
QSet<QByteArray> m_uniformNames; | |
QSize m_meshResolution; | |
QSGGeometry m_geometry; | |
struct SourceData | |
{ | |
QSignalMapper *mapper; | |
QPointer<ShaderEffectSource> source; | |
QPointer<QDeclarativeItem> item; | |
QByteArray name; | |
}; | |
QVector<SourceData> m_sources; | |
bool m_changed : 1; | |
bool m_blending : 1; | |
bool m_program_dirty : 1; | |
bool m_active : 1; | |
bool m_respectsMatrix : 1; | |
bool m_respectsOpacity : 1; | |
bool m_checkedViewportUpdateMode : 1; | |
bool m_checkedOpenGL : 1; | |
bool m_checkedShaderPrograms : 1; | |
bool m_hasShaderPrograms : 1; | |
bool m_mirrored : 1; | |
bool m_defaultVertexShader : 1; | |
}; | |
QT_END_HEADER | |
QT_END_NAMESPACE | |
#endif // SHADEREFFECTITEM_H |