/*

    Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <wildfox@kde.org>

                  2004, 2005, 2006 Rob Buis <buis@kde.org>

                  2005 Eric Seidel <eric.seidel@kdemail.net>

    This file is part of the KDE project

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License

    aint with this library; see the file COPYING.LIB.  If not, write to

    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    Boston, MA 02110-1301, USA.

*/

#include "config.h"

#include "RenderPath.h"

#include "KCanvasRenderingStyle.h"

#include <QDebug>

#include <QPainterPathStroker>

namespace WebCore {

bool RenderPath::strokeContains(const FloatPoint& point, bool requiresStroke) const

{

    if (path().isEmpty())

        return false;

    if (requiresStroke && !KSVGPainterFactory::strokePaintServer(style(), this))

        return false;

    return false;

}

static QPainterPath getPathStroke(const QPainterPath &path, const RenderObject* object, const RenderStyle* style)

{ 

    QPainterPathStroker s;

    s.setWidth(KSVGPainterFactory::cssPrimitiveToLength(object, style->svgStyle()->strokeWidth(), 1.0));

    if (style->svgStyle()->capStyle() == ButtCap)

        s.setCapStyle(Qt::FlatCap);

    else if (style->svgStyle()->capStyle() == RoundCap)

        s.setCapStyle(Qt::RoundCap);

    if (style->svgStyle()->joinStyle() == MiterJoin) {

        s.setJoinStyle(Qt::MiterJoin);

        s.setMiterLimit((qreal) style->svgStyle()->strokeMiterLimit());

    } else if(style->svgStyle()->joinStyle() == RoundJoin)

        s.setJoinStyle(Qt::RoundJoin);

    const KCDashArray& dashes = KSVGPainterFactory::dashArrayFromRenderingStyle(style);

    double dashOffset = KSVGPainterFactory::cssPrimitiveToLength(object, style->svgStyle()->strokeDashOffset(), 0.0);

    unsigned int dashLength = !dashes.isEmpty() ? dashes.size() : 0;

    if(dashLength) {

        QVector<qreal> pattern;

        unsigned int count = (dashLength % 2) == 0 ? dashLength : dashLength * 2;

        for(unsigned int i = 0; i < count; i++)

            pattern.append(dashes[i % dashLength] / (float)s.width());

        s.setDashPattern(pattern);

        Q_UNUSED(dashOffset);

        // TODO: dash-offset, does/will qt4 API allow it? (Rob)

    }

    return s.createStroke(path);

}

FloatRect RenderPath::strokeBBox() const

{

    QPainterPath outline = getPathStroke(*(path().platformPath()), this, style());

    return outline.boundingRect();

}

}

// vim:ts=4:noet