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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtSvg module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#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);
} else if (alignment == Qt::AlignRight) {
alignmentOffset.setX(-textWidth);
}
p->translate(alignmentOffset);
// since in SVG the embedded font ain't really a path
// the outline has got to stay untransformed...
qreal penWidth = p->pen().widthF();
penWidth /= (pixelSize/m_unitsPerEm);
QPen pen = p->pen();
pen.setWidthF(penWidth);
p->setPen(pen);
itr = str.constBegin();
for ( ; itr != str.constEnd(); ++itr) {
QChar unicode = *itr;
if (!m_glyphs.contains(*itr)) {
unicode = 0;
if (!m_glyphs.contains(unicode))
continue;
}
p->drawPath(m_glyphs[unicode].m_path);
p->translate(m_glyphs[unicode].m_horizAdvX, 0);
}
p->restore();
}
void QSvgFont::setFamilyName(const QString &name)
{
m_familyName = name;
}
void QSvgFont::setUnitsPerEm(qreal upem)
{
m_unitsPerEm = upem;
}
QT_END_NAMESPACE
#endif // QT_NO_SVG
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