source: trunk/src/svg/qsvgfont.cpp@ 944

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** This file is part of the QtSvg module of the Qt Toolkit.
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#include "qsvgfont_p.h"

#ifndef QT_NO_SVG

#include "qpainter.h"
#include "qpen.h"
#include "qdebug.h"
#include "qpicture.h"

QT_BEGIN_NAMESPACE

QSvgGlyph::QSvgGlyph(QChar unicode, const QPainterPath &path, qreal horizAdvX)
    : m_unicode(unicode), m_path(path), m_horizAdvX(horizAdvX)
{

}


QSvgFont::QSvgFont(qreal horizAdvX)
    : m_horizAdvX(horizAdvX)
{
}


QString QSvgFont::familyName() const
{
    return m_familyName;
}


void QSvgFont::addGlyph(QChar unicode, const QPainterPath &path, qreal horizAdvX )
{
    m_glyphs.insert(unicode, QSvgGlyph(unicode, path,
                                       (horizAdvX==-1)?m_horizAdvX:horizAdvX));
}


void QSvgFont::draw(QPainter *p, const QPointF &point, const QString &str, qreal pixelSize, Qt::Alignment alignment) const
{
    p->save();
    p->translate(point);
    p->scale(pixelSize / m_unitsPerEm, -pixelSize / m_unitsPerEm);

    // Calculate the text width to be used for alignment
    int textWidth = 0;
    QString::const_iterator itr = str.constBegin();
    for ( ; itr != str.constEnd(); ++itr) {
        QChar unicode = *itr;
        if (!m_glyphs.contains(*itr)) {
            unicode = 0;
            if (!m_glyphs.contains(unicode))
                continue;
        }
        textWidth += static_cast<int>(m_glyphs[unicode].m_horizAdvX);
    }

    QPoint alignmentOffset(0, 0);
    if (alignment == Qt::AlignHCenter) {
        alignmentOffset.setX(-textWidth / 2);