1 files changed, 152 insertions, 0 deletions
diff --git a/src/imports/shaders/shadereffectitem.h b/src/imports/shaders/shadereffectitem.h
new file mode 100644
index 0000000000..1d275439f2
--- /dev/null
+++ b/src/imports/shaders/shadereffectitem.h
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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