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#include "qcontext2dcanvas.h"

#include "context2d.h"

#include "environment.h"

#include "domimage.h"

#include <QPainter>

#include <QPaintEvent>

//! [3]

QContext2DCanvas::QContext2DCanvas(Context2D *context, Environment *env, QWidget *parent)

    : QWidget(parent), m_context(context), m_env(env)

{

    QObject::connect(context, SIGNAL(changed(QImage)), this, SLOT(contentsChanged(QImage)));

    setMouseTracking(true);

}

//! [3]

QContext2DCanvas::~QContext2DCanvas()

{

}

Context2D *QContext2DCanvas::context() const

{

    return m_context;

}

//! [0]

QScriptValue QContext2DCanvas::getContext(const QString &str)

{

    if (str != "2d")

        return QScriptValue();

    return m_env->toWrapper(m_context);

}

//! [0]

//! [1]

void QContext2DCanvas::contentsChanged(const QImage &image)

{

    m_image = image;

    update();

}

void QContext2DCanvas::paintEvent(QPaintEvent *e)

{

    QPainter p(this);

#ifdef Q_WS_S60

// Draw white rect first since in with some themes the js-file content will produce black-on-black.

    QBrush whiteBgBrush(Qt::white);

    p.fillRect(e->rect(), whiteBgBrush);

#endif

    p.setClipRect(e->rect());

    p.drawImage(0, 0, m_image);

}

//! [1]

//! [2]

void QContext2DCanvas::mouseMoveEvent(QMouseEvent *e)

{

    m_env->handleEvent(this, e);

}

void QContext2DCanvas::mousePressEvent(QMouseEvent *e)

{

    m_env->handleEvent(this, e);

}

void QContext2DCanvas::mouseReleaseEvent(QMouseEvent *e)

{

    m_env->handleEvent(this, e);

}

void QContext2DCanvas::keyPressEvent(QKeyEvent *e)

{

    m_env->handleEvent(this, e);

}

void QContext2DCanvas::keyReleaseEvent(QKeyEvent *e)

{

    m_env->handleEvent(this, e);

}

//! [2]

void QContext2DCanvas::resizeEvent(QResizeEvent *e)

{

    m_context->setSize(e->size().width(), e->size().height());

}

void QContext2DCanvas::resize(int width, int height)

{

    QWidget::resize(width, height);

}

void QContext2DCanvas::reset()

{

    m_context->reset();

}

void QContext2DCanvas::addEventListener(const QString &type, const QScriptValue &listener,

                                        bool useCapture)

{

    Q_UNUSED(useCapture);

    if (listener.isFunction()) {

        QScriptValue self = m_env->toWrapper(this);

        self.setProperty("on" + type, listener);

    }

}