| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 |