/*

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

    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"

#if ENABLE(SVG)

#include "SVGPaintServer.h"

#include "GraphicsContext.h"

#include "KCanvasRenderingStyle.h"

#include "RenderPath.h"

#include <QPainter>

#include <QVector>

namespace WebCore {

void SVGPaintServer::setPenProperties(const RenderObject* object, const RenderStyle* style, QPen& pen) const

{

    pen.setWidthF(KSVGPainterFactory::cssPrimitiveToLength(object, style->svgStyle()->strokeWidth(), 1.0));

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

        pen.setCapStyle(Qt::FlatCap);

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

        pen.setCapStyle(Qt::RoundCap);

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

        pen.setJoinStyle(Qt::MiterJoin);

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

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

        pen.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)pen.widthF());

        pen.setDashPattern(pattern);

        Q_UNUSED(dashOffset);

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

    }

}

void SVGPaintServer::draw(GraphicsContext*& context, const RenderPath* path, SVGPaintTargetType type) const

{

    if (!setup(context, path, type))

        return;

    renderPath(context, path, type);

    teardown(context, path, type);

}

void SVGPaintServer::teardown(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText) const

{

    // no-op

}

void SVGPaintServer::renderPath(GraphicsContext*& context, const RenderPath* path, SVGPaintTargetType type) const

{

    RenderStyle* renderStyle = path->style();

    QPainter* painter(context ? context->platformContext() : 0);

    Q_ASSERT(painter);

    QPainterPath* painterPath(context ? context->currentPath() : 0);

    Q_ASSERT(painterPath);

    if ((type & ApplyToFillTargetType) && renderStyle->svgStyle()->hasFill())

        painter->fillPath(*painterPath, painter->brush());

    if ((type & ApplyToStrokeTargetType) && renderStyle->svgStyle()->hasStroke())

        painter->strokePath(*painterPath, painter->pen());

}

} // namespace WebCore

#endif

// vim:ts=4:noet