| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt SVG module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qsvgfont_p.h" |
| |
| #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 |