/**

 * Copyright (C) 2003, 2006 Apple Computer, Inc.

 *

 * 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

 * along 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 "EllipsisBox.h"

#include "Document.h"

#include "GraphicsContext.h"

#include "HitTestResult.h"

#include "RootInlineBox.h"

namespace WebCore {

void EllipsisBox::paint(PaintInfo& paintInfo, int tx, int ty)

{

    GraphicsContext* context = paintInfo.context;

    RenderStyle* style = m_renderer->style(m_firstLine);

    Color textColor = style->visitedDependentColor(CSSPropertyColor);

    if (textColor != context->fillColor())

        context->setFillColor(textColor, style->colorSpace());

    bool setShadow = false;

    if (style->textShadow()) {

        context->setShadow(IntSize(style->textShadow()->x(), style->textShadow()->y()),

                           style->textShadow()->blur(), style->textShadow()->color(), style->colorSpace());

        setShadow = true;

    }

    if (selectionState() != RenderObject::SelectionNone) {

        paintSelection(context, tx, ty, style, style->font());

        // Select the correct color for painting the text.

        Color foreground = paintInfo.forceBlackText ? Color::black : renderer()->selectionForegroundColor();

        if (foreground.isValid() && foreground != textColor)

            context->setFillColor(foreground, style->colorSpace());

    }

    const String& str = m_str;

    context->drawText(style->font(), TextRun(str.characters(), str.length(), false, 0, 0, false, style->visuallyOrdered()), IntPoint(m_x + tx, m_y + ty + style->font().ascent()));

    // Restore the regular fill color.

    if (textColor != context->fillColor())

        context->setFillColor(textColor, style->colorSpace());

    if (setShadow)

        context->clearShadow();

    if (m_markupBox) {

        // Paint the markup box

        tx += m_x + m_width - m_markupBox->x();

        ty += m_y + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());

        m_markupBox->paint(paintInfo, tx, ty);

    }

}

IntRect EllipsisBox::selectionRect(int tx, int ty)

{

    RenderStyle* style = m_renderer->style(m_firstLine);

    const Font& f = style->font();

    return enclosingIntRect(f.selectionRectForText(TextRun(m_str.characters(), m_str.length(), false, 0, 0, false, style->visuallyOrdered()),

            IntPoint(m_x + tx, m_y + ty + root()->selectionTop()), root()->selectionHeight()));

}

void EllipsisBox::paintSelection(GraphicsContext* context, int tx, int ty, RenderStyle* style, const Font& font)

{

    Color textColor = style->visitedDependentColor(CSSPropertyColor);

    Color c = m_renderer->selectionBackgroundColor();

    if (!c.isValid() || !c.alpha())

        return;

    // If the text color ends up being the same as the selection background, invert the selection

    // background.

    if (textColor == c)

        c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());

    context->save();

    int y = root()->selectionTop();

    int h = root()->selectionHeight();

    context->clip(IntRect(m_x + tx, y + ty, m_width, h));

    context->drawHighlightForText(font, TextRun(m_str.characters(), m_str.length(), false, 0, 0, false, style->visuallyOrdered()),

        IntPoint(m_x + tx, m_y + ty + y), h, c, style->colorSpace());

    context->restore();

}

bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty)

{

    tx += m_x;

    ty += m_y;

    // Hit test the markup box.

    if (m_markupBox) {

        RenderStyle* style = m_renderer->style(m_firstLine);

        int mtx = tx + m_width - m_markupBox->x();

        int mty = ty + style->font().ascent() - (m_markupBox->y() + m_markupBox->renderer()->style(m_firstLine)->font().ascent());

        if (m_markupBox->nodeAtPoint(request, result, x, y, mtx, mty)) {

            renderer()->updateHitTestResult(result, IntPoint(x - mtx, y - mty));

            return true;

        }

    }

    IntRect boundsRect = IntRect(tx, ty, m_width, m_height);

    if (visibleToHitTesting() && boundsRect.intersects(result.rectFromPoint(x, y))) {

        renderer()->updateHitTestResult(result, IntPoint(x - tx, y - ty));

        if (!result.addNodeToRectBasedTestResult(renderer()->node(), x, y, boundsRect))

            return true;

    }

    return false;

}

} // namespace WebCore