qquickshadereffectmesh_p.h 3.56 KiB
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#include "qqmlparserstatus.h"
#include <QtQuick/qtquickglobal.h>
#include <QtGui/qcolor.h>
#include <QtCore/qobject.h>
#include <QtCore/qsize.h>
#include <QtCore/qvariant.h>
#include <QtGui/qopenglfunctions.h>
#ifndef QQUICKSHADEREFFECTMESH_P_H
#define QQUICKSHADEREFFECTMESH_P_H
QT_BEGIN_NAMESPACE
class QSGGeometry;
class QRectF;
class QQuickShaderEffectMesh : public QObject
    Q_OBJECT
public:
    QQuickShaderEffectMesh(QObject *parent = 0);
    // If 'geometry' != 0, 'attributes' is the same as last time the function was called.
    virtual QSGGeometry *updateGeometry(QSGGeometry *geometry, const QVector<QByteArray> &attributes, const QRectF &rect) = 0;
    // If updateGeometry() fails, the reason should appear in the log.
    virtual QString log() const { return QString(); }
Q_SIGNALS:
    // Emitted when the geometry needs to be updated.
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void geometryChanged(); }; class QQuickGridMesh : public QQuickShaderEffectMesh { Q_OBJECT Q_PROPERTY(QSize resolution READ resolution WRITE setResolution NOTIFY resolutionChanged) public: QQuickGridMesh(QObject *parent = 0); virtual QSGGeometry *updateGeometry(QSGGeometry *geometry, const QVector<QByteArray> &attributes, const QRectF &rect); virtual QString log() const { return m_log; } void setResolution(const QSize &res); QSize resolution() const; Q_SIGNALS: void resolutionChanged(); private: QSize m_resolution; QString m_log; }; inline QColor qt_premultiply_color(const QColor &c) { return QColor::fromRgbF(c.redF() * c.alphaF(), c.greenF() * c.alphaF(), c.blueF() * c.alphaF(), c.alphaF()); } QT_END_NAMESPACE #endif // QQUICKSHADEREFFECTMESH_P_H