source: trunk/examples/script/context2d/context2d.h@ 247

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#ifndef CONTEXT2D_H
#define CONTEXT2D_H

#include "domimage.h"

#include <QPainter>
#include <QPainterPath>
#include <QString>
#include <QStack>
#include <QMetaType>
#include <QTimerEvent>

// [3]
class CanvasGradient
{
public:
    CanvasGradient(const QGradient &v)
        : value(v) {}
    CanvasGradient() {}

    QGradient value;
};
// [3]

Q_DECLARE_METATYPE(CanvasGradient)
Q_DECLARE_METATYPE(CanvasGradient*)

class ImageData {
};

class QContext2DCanvas;

//! [0]
class Context2D : public QObject
{
    Q_OBJECT
    // compositing
    Q_PROPERTY(qreal globalAlpha READ globalAlpha WRITE setGlobalAlpha)
    Q_PROPERTY(QString globalCompositeOperation READ globalCompositeOperation WRITE setGlobalCompositeOperation)
    Q_PROPERTY(QVariant strokeStyle READ strokeStyle WRITE setStrokeStyle)
    Q_PROPERTY(QVariant fillStyle READ fillStyle WRITE setFillStyle)
    // line caps/joins
    Q_PROPERTY(qreal lineWidth READ lineWidth WRITE setLineWidth)
    Q_PROPERTY(QString lineCap READ lineCap WRITE setLineCap)
    Q_PROPERTY(QString lineJoin READ lineJoin WRITE setLineJoin)
    Q_PROPERTY(qreal miterLimit READ miterLimit WRITE setMiterLimit)
    // shadows
    Q_PROPERTY(qreal shadowOffsetX READ shadowOffsetX WRITE setShadowOffsetX)
    Q_PROPERTY(qreal shadowOffsetY READ shadowOffsetY WRITE setShadowOffsetY)
    Q_PROPERTY(qreal shadowBlur READ shadowBlur WRITE setShadowBlur)
    Q_PROPERTY(QString shadowColor READ shadowColor WRITE setShadowColor)
//! [0]

public:
    Context2D(QObject *parent = 0);
    void setSize(int width, int height);
    void setSize(const QSize &size);
    QSize size() const;

    void clear();
    void reset();

    // compositing
    qreal globalAlpha() const; // (default 1.0)
    QString globalCompositeOperation() const; // (default over)
    QVariant strokeStyle() const; // (default black)
    QVariant fillStyle() const; // (default black)

    void setGlobalAlpha(qreal alpha);
    void setGlobalCompositeOperation(const QString &op);