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Diffstat (limited to 'src/gui/text/qfontengine_x11.cpp')
| -rw-r--r-- | src/gui/text/qfontengine_x11.cpp | 1203 |
1 files changed, 0 insertions, 1203 deletions
diff --git a/src/gui/text/qfontengine_x11.cpp b/src/gui/text/qfontengine_x11.cpp deleted file mode 100644 index 6e87f4c2f6..0000000000 --- a/src/gui/text/qfontengine_x11.cpp +++ /dev/null @@ -1,1203 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qbitmap.h" - -// #define FONTENGINE_DEBUG - -#include <qapplication.h> -#include <qbytearray.h> -#include <qdebug.h> -#include <qtextcodec.h> -#include <qthread.h> - -#include "qfontdatabase.h" -#include "qpaintdevice.h" -#include "qpainter.h" -#include "qvarlengtharray.h" -#include "qwidget.h" -#include "qsettings.h" -#include "qfile.h" - -#include <private/qpaintengine_x11_p.h> -#include "qfont.h" -#include "qfont_p.h" -#include "qfontengine_p.h" -#include <qhash.h> - -#include <private/qpainter_p.h> -#include <private/qunicodetables_p.h> - -#include <private/qt_x11_p.h> -#include <private/qpixmap_x11_p.h> -#include "qx11info_x11.h" -#include "qfontengine_x11_p.h" - -#include <limits.h> - -#include <ft2build.h> -#if defined(FT_LCD_FILTER_H) -#include FT_LCD_FILTER_H -#endif - -#if defined(FC_LCD_FILTER) - -#ifndef FC_LCD_FILTER_NONE -#define FC_LCD_FILTER_NONE FC_LCD_NONE -#endif - -#ifndef FC_LCD_FILTER_DEFAULT -#define FC_LCD_FILTER_DEFAULT FC_LCD_DEFAULT -#endif - -#ifndef FC_LCD_FILTER_LIGHT -#define FC_LCD_FILTER_LIGHT FC_LCD_LIGHT -#endif - -#ifndef FC_LCD_FILTER_LEGACY -#define FC_LCD_FILTER_LEGACY FC_LCD_LEGACY -#endif - -#endif - -QT_BEGIN_NAMESPACE - - -// ------------------------------------------------------------------ -// Multi XLFD engine -// ------------------------------------------------------------------ - -QFontEngineMultiXLFD::QFontEngineMultiXLFD(const QFontDef &r, const QList<int> &l, int s) - : QFontEngineMulti(l.size()), encodings(l), screen(s), request(r) -{ - loadEngine(0); - fontDef = engines[0]->fontDef; -} - -QFontEngineMultiXLFD::~QFontEngineMultiXLFD() -{ } - -void QFontEngineMultiXLFD::loadEngine(int at) -{ - Q_ASSERT(at < engines.size()); - Q_ASSERT(engines.at(at) == 0); - const int encoding = encodings.at(at); - QFontEngine *fontEngine = QFontDatabase::loadXlfd(0, QUnicodeTables::Common, request, encoding); - Q_ASSERT(fontEngine != 0); - fontEngine->ref.ref(); - engines[at] = fontEngine; -} - -// ------------------------------------------------------------------ -// Xlfd font engine -// ------------------------------------------------------------------ - -#ifndef QT_NO_FREETYPE - -static QStringList *qt_fontpath = 0; - -static QStringList fontPath() -{ - if (qt_fontpath) - return *qt_fontpath; - - // append qsettings fontpath - QSettings settings(QSettings::UserScope, QLatin1String("Trolltech")); - settings.beginGroup(QLatin1String("Qt")); - - QStringList fontpath; - - int npaths; - char** font_path; - font_path = XGetFontPath(X11->display, &npaths); - bool xfsconfig_read = false; - for (int i=0; i<npaths; i++) { - // If we're using xfs, append font paths from /etc/X11/fs/config - // can't hurt, and chances are we'll get all fonts that way. - if (((font_path[i])[0] != '/') && !xfsconfig_read) { - // We're using xfs -> read its config - bool finished = false; - QFile f(QLatin1String("/etc/X11/fs/config")); - if (!f.exists()) - f.setFileName(QLatin1String("/usr/X11R6/lib/X11/fs/config")); - if (!f.exists()) - f.setFileName(QLatin1String("/usr/X11/lib/X11/fs/config")); - if (f.exists()) { - f.open(QIODevice::ReadOnly); - while (f.error()==QFile::NoError && !finished) { - QString fs = QString::fromLocal8Bit(f.readLine(1024)); - fs=fs.trimmed(); - if (fs.left(9)==QLatin1String("catalogue") && fs.contains(QLatin1Char('='))) { - fs = fs.mid(fs.indexOf(QLatin1Char('=')) + 1).trimmed(); - bool end = false; - while (f.error()==QFile::NoError && !end) { - if (fs[int(fs.length())-1] == QLatin1Char(',')) - fs = fs.left(fs.length()-1); - else - end = true; - - fs = fs.left(fs.indexOf(QLatin1String(":unscaled"))); - if (fs[0] != QLatin1Char('#')) - fontpath += fs; - fs = QLatin1String(f.readLine(1024)); - fs = fs.trimmed(); - if (fs.isEmpty()) - end = true; - } - finished = true; - } - } - f.close(); - } - xfsconfig_read = true; - } else { - QString fs = QString::fromLocal8Bit(font_path[i]); - fontpath += fs.left(fs.indexOf(QLatin1String(":unscaled"))); - } - } - XFreeFontPath(font_path); - - // append qsettings fontpath - QStringList fp = settings.value(QLatin1String("fontPath")).toStringList(); - if (!fp.isEmpty()) - fontpath += fp; - - qt_fontpath = new QStringList(fontpath); - return fontpath; -} - -static QFontEngine::FaceId fontFile(const QByteArray &_xname, QFreetypeFace **freetype, int *synth) -{ - *freetype = 0; - *synth = 0; - - QByteArray xname = _xname.toLower(); - - int pos = 0; - int minus = 0; - while (minus < 5 && (pos = xname.indexOf('-', pos + 1))) - ++minus; - QByteArray searchname = xname.left(pos); - while (minus < 12 && (pos = xname.indexOf('-', pos + 1))) - ++minus; - QByteArray encoding = xname.mid(pos + 1); - //qDebug("xname='%s', searchname='%s', encoding='%s'", xname.data(), searchname.data(), encoding.data()); - QStringList fontpath = fontPath(); - QFontEngine::FaceId face_id; - face_id.index = 0; - - QByteArray best_mapping; - - for (QStringList::ConstIterator it = fontpath.constBegin(); it != fontpath.constEnd(); ++it) { - if (!(*it).startsWith(QLatin1Char('/'))) - continue; // not a path name, a font server - QString fontmapname; - int num = 0; - // search font.dir and font.scale for the right file - while (num < 2) { - if (num == 0) - fontmapname = (*it) + QLatin1String("/fonts.scale"); - else - fontmapname = (*it) + QLatin1String("/fonts.dir"); - ++num; - //qWarning(fontmapname); - QFile fontmap(fontmapname); - if (!fontmap.open(QIODevice::ReadOnly)) - continue; - while (!fontmap.atEnd()) { - QByteArray mapping = fontmap.readLine(); - QByteArray lmapping = mapping.toLower(); - - //qWarning(xfontname); - //qWarning(mapping); - if (!lmapping.contains(searchname)) - continue; - int index = mapping.indexOf(' '); - QByteArray ffn = mapping.mid(0,index); - // remove bitmap formats freetype can't handle - if (ffn.contains(".spd") || ffn.contains(".phont")) - continue; - bool best_match = false; - if (!best_mapping.isEmpty()) { - if (lmapping.contains("-0-0-0-0-")) { // scalable font - best_match = true; - goto found; - } - if (lmapping.contains(encoding) && !best_mapping.toLower().contains(encoding)) - goto found; - continue; - } - - found: - int colon = ffn.lastIndexOf(':'); - if (colon != -1) { - QByteArray s = ffn.left(colon); - ffn = ffn.mid(colon + 1); - if (s.contains("ds=")) - *synth |= QFontEngine::SynthesizedBold; - if (s.contains("ai=")) - *synth |= QFontEngine::SynthesizedItalic; - } - face_id.filename = (*it).toLocal8Bit() + '/' + ffn; - best_mapping = mapping; - if (best_match) - goto end; - } - } - } -end: -// qDebug("fontfile for %s is from '%s'\n got %s synth=%d", xname.data(), -// best_mapping.data(), face_id.filename.data(), *synth); - *freetype = QFreetypeFace::getFace(face_id); - if (!*freetype) { - face_id.index = 0; - face_id.filename = QByteArray(); - } - return face_id; -} - -#endif // QT_NO_FREETYPE - -// defined in qfontdatabase_x11.cpp -extern int qt_mib_for_xlfd_encoding(const char *encoding); -extern int qt_xlfd_encoding_id(const char *encoding); - -static inline XCharStruct *charStruct(XFontStruct *xfs, uint ch) -{ - XCharStruct *xcs = 0; - unsigned char r = ch>>8; - unsigned char c = ch&0xff; - if (xfs->per_char && - r >= xfs->min_byte1 && - r <= xfs->max_byte1 && - c >= xfs->min_char_or_byte2 && - c <= xfs->max_char_or_byte2) { - xcs = xfs->per_char + ((r - xfs->min_byte1) * - (xfs->max_char_or_byte2 - - xfs->min_char_or_byte2 + 1)) + - (c - xfs->min_char_or_byte2); - if (xcs->width == 0 && xcs->ascent == 0 && xcs->descent == 0) - xcs = 0; - } - return xcs; -} - -QFontEngineXLFD::QFontEngineXLFD(XFontStruct *fs, const QByteArray &name, int mib) - : _fs(fs), _name(name), _codec(0), _cmap(mib) -{ - if (_cmap) _codec = QTextCodec::codecForMib(_cmap); - - cache_cost = (((fs->max_byte1 - fs->min_byte1) * - (fs->max_char_or_byte2 - fs->min_char_or_byte2 + 1)) + - fs->max_char_or_byte2 - fs->min_char_or_byte2); - cache_cost = ((fs->max_bounds.ascent + fs->max_bounds.descent) * - (fs->max_bounds.width * cache_cost / 8)); - lbearing = SHRT_MIN; - rbearing = SHRT_MIN; - face_id.index = -1; - freetype = 0; - synth = 0; -} - -QFontEngineXLFD::~QFontEngineXLFD() -{ - XFreeFont(QX11Info::display(), _fs); - _fs = 0; -#ifndef QT_NO_FREETYPE - if (freetype) - freetype->release(face_id); -#endif -} - -bool QFontEngineXLFD::stringToCMap(const QChar *s, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - if (*nglyphs < len) { - *nglyphs = len; - return false; - } - - // filter out surrogates, we can't handle them anyway with XLFD fonts - QVarLengthArray<ushort> _s(len); - QChar *str = (QChar *)_s.data(); - for (int i = 0; i < len; ++i) { - if (s[i].isHighSurrogate() && i < len-1 && s[i+1].isLowSurrogate()) { - *str = QChar(); - ++i; - } else { - *str = s[i]; - } - ++str; - } - - len = str - (QChar *)_s.data(); - str = (QChar *)_s.data(); - - bool mirrored = flags & QTextEngine::RightToLeft; - if (_codec) { - bool haveNbsp = false; - for (int i = 0; i < len; i++) - if (str[i].unicode() == 0xa0) { - haveNbsp = true; - break; - } - - QVarLengthArray<unsigned short> ch(len); - QChar *chars = (QChar *)ch.data(); - if (haveNbsp || mirrored) { - for (int i = 0; i < len; i++) - chars[i] = (str[i].unicode() == 0xa0 ? 0x20 : - (mirrored ? QChar::mirroredChar(str[i].unicode()) : str[i].unicode())); - } else { - for (int i = 0; i < len; i++) - chars[i] = str[i].unicode(); - } - QTextCodec::ConverterState state; - state.flags = QTextCodec::ConvertInvalidToNull; - QByteArray ba = _codec->fromUnicode(chars, len, &state); - if (ba.length() == 2*len) { - // double byte encoding - const uchar *data = (const uchar *)ba.constData(); - for (int i = 0; i < len; i++) { - glyphs->glyphs[i] = ((ushort)data[0] << 8) + data[1]; - data += 2; - } - } else { - const uchar *data = (const uchar *)ba.constData(); - for (int i = 0; i < len; i++) - glyphs->glyphs[i] = (ushort)data[i]; - } - } else { - int i = len; - const QChar *c = str + len; - if (mirrored) { - while (c != str) - glyphs->glyphs[--i] = (--c)->unicode() == 0xa0 ? 0x20 : QChar::mirroredChar(c->unicode()); - } else { - while (c != str) - glyphs->glyphs[--i] = (--c)->unicode() == 0xa0 ? 0x20 : c->unicode(); - } - } - *nglyphs = len; - glyphs->numGlyphs = len; - - if (!(flags & QTextEngine::GlyphIndicesOnly)) - recalcAdvances(glyphs, flags); - return true; -} - -void QFontEngineXLFD::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags /*flags*/) const -{ - int i = glyphs->numGlyphs; - XCharStruct *xcs; - // inlined for better performance - if (!_fs->per_char) { - xcs = &_fs->min_bounds; - while (i != 0) { - --i; - const unsigned char r = glyphs->glyphs[i] >> 8; - const unsigned char c = glyphs->glyphs[i] & 0xff; - if (r >= _fs->min_byte1 && - r <= _fs->max_byte1 && - c >= _fs->min_char_or_byte2 && - c <= _fs->max_char_or_byte2) { - glyphs->advances_x[i] = xcs->width; - } else { - glyphs->glyphs[i] = 0; - } - } - } - else if (!_fs->max_byte1) { - XCharStruct *base = _fs->per_char - _fs->min_char_or_byte2; - while (i != 0) { - unsigned int gl = glyphs->glyphs[--i]; - xcs = (gl >= _fs->min_char_or_byte2 && gl <= _fs->max_char_or_byte2) ? - base + gl : 0; - if (!xcs || (!xcs->width && !xcs->ascent && !xcs->descent)) { - glyphs->glyphs[i] = 0; - } else { - glyphs->advances_x[i] = xcs->width; - } - } - } - else { - while (i != 0) { - xcs = charStruct(_fs, glyphs->glyphs[--i]); - if (!xcs) { - glyphs->glyphs[i] = 0; - } else { - glyphs->advances_x[i] = xcs->width; - } - } - } -} - -glyph_metrics_t QFontEngineXLFD::boundingBox(const QGlyphLayout &glyphs) -{ - int i; - - glyph_metrics_t overall; - // initialize with line height, we get the same behaviour on all platforms - overall.y = -ascent(); - overall.height = ascent() + descent() + 1; - QFixed ymax; - QFixed xmax; - for (i = 0; i < glyphs.numGlyphs; i++) { - XCharStruct *xcs = charStruct(_fs, glyphs.glyphs[i]); - if (xcs) { - QFixed x = overall.xoff + glyphs.offsets[i].x + xcs->lbearing; - QFixed y = overall.yoff + glyphs.offsets[i].y - xcs->ascent; - overall.x = qMin(overall.x, x); - overall.y = qMin(overall.y, y); - // XCharStruct::rbearing is defined as distance from left edge to rightmost pixel - xmax = qMax(xmax, overall.xoff + glyphs.offsets[i].x + xcs->rbearing); - ymax = qMax(ymax, y + xcs->ascent + xcs->descent); - overall.xoff += glyphs.advances_x[i] + QFixed::fromFixed(glyphs.justifications[i].space_18d6); - } else { - QFixed size = _fs->ascent; - overall.x = qMin(overall.x, overall.xoff); - overall.y = qMin(overall.y, overall.yoff - size); - ymax = qMax(ymax, overall.yoff); - overall.xoff += size; - xmax = qMax(xmax, overall.xoff); - } - } - overall.height = qMax(overall.height, ymax - overall.y); - overall.width = xmax - overall.x; - - return overall; -} - -glyph_metrics_t QFontEngineXLFD::boundingBox(glyph_t glyph) -{ - glyph_metrics_t gm; - XCharStruct *xcs = charStruct(_fs, glyph); - if (xcs) { - // XCharStruct::rbearing is defined as distance from left edge to rightmost pixel - // XCharStruct::width is defined as the advance - gm = glyph_metrics_t(xcs->lbearing, -xcs->ascent, xcs->rbearing- xcs->lbearing, xcs->ascent + xcs->descent, - xcs->width, 0); - } else { - QFixed size = ascent(); - gm = glyph_metrics_t(0, size, size, size, size, 0); - } - return gm; -} - -QFixed QFontEngineXLFD::ascent() const -{ - return _fs->ascent; -} - -QFixed QFontEngineXLFD::descent() const -{ - return (_fs->descent-1); -} - -QFixed QFontEngineXLFD::leading() const -{ - QFixed l = QFixed(qMin<int>(_fs->ascent, _fs->max_bounds.ascent) - + qMin<int>(_fs->descent, _fs->max_bounds.descent)) * QFixed::fromReal(0.15); - return l.ceil(); -} - -qreal QFontEngineXLFD::maxCharWidth() const -{ - return _fs->max_bounds.width; -} - - -// Loads the font for the specified script -static inline int maxIndex(XFontStruct *f) { - return (((f->max_byte1 - f->min_byte1) * - (f->max_char_or_byte2 - f->min_char_or_byte2 + 1)) + - f->max_char_or_byte2 - f->min_char_or_byte2); -} - -qreal QFontEngineXLFD::minLeftBearing() const -{ - if (lbearing == SHRT_MIN) { - if (_fs->per_char) { - XCharStruct *cs = _fs->per_char; - int nc = maxIndex(_fs) + 1; - int mx = cs->lbearing; - - for (int c = 1; c < nc; c++) { - // ignore the bearings for characters whose ink is - // completely outside the normal bounding box - if ((cs[c].lbearing <= 0 && cs[c].rbearing <= 0) || - (cs[c].lbearing >= cs[c].width && cs[c].rbearing >= cs[c].width)) - continue; - - int nmx = cs[c].lbearing; - - if (nmx < mx) - mx = nmx; - } - - ((QFontEngineXLFD *)this)->lbearing = mx; - } else - ((QFontEngineXLFD *)this)->lbearing = _fs->min_bounds.lbearing; - } - return lbearing; -} - -qreal QFontEngineXLFD::minRightBearing() const -{ - if (rbearing == SHRT_MIN) { - if (_fs->per_char) { - XCharStruct *cs = _fs->per_char; - int nc = maxIndex(_fs) + 1; - int mx = cs->rbearing; - - for (int c = 1; c < nc; c++) { - // ignore the bearings for characters whose ink is - // completely outside the normal bounding box - if ((cs[c].lbearing <= 0 && cs[c].rbearing <= 0) || - (cs[c].lbearing >= cs[c].width && cs[c].rbearing >= cs[c].width)) - continue; - - int nmx = cs[c].rbearing; - - if (nmx < mx) - mx = nmx; - } - - ((QFontEngineXLFD *)this)->rbearing = mx; - } else - ((QFontEngineXLFD *)this)->rbearing = _fs->min_bounds.rbearing; - } - return rbearing; -} - -const char *QFontEngineXLFD::name() const -{ - return _name; -} - -bool QFontEngineXLFD::canRender(const QChar *string, int len) -{ - QVarLengthGlyphLayoutArray glyphs(len); - int nglyphs = len; - if (stringToCMap(string, len, &glyphs, &nglyphs, 0) == false) { - glyphs.resize(nglyphs); - stringToCMap(string, len, &glyphs, &nglyphs, 0); - } - - bool allExist = true; - for (int i = 0; i < nglyphs; i++) { - if (!glyphs.glyphs[i] || !charStruct(_fs, glyphs.glyphs[i])) { - allExist = false; - break; - } - } - - return allExist; -} - -QBitmap QFontEngineXLFD::bitmapForGlyphs(const QGlyphLayout &glyphs, const glyph_metrics_t &metrics, QTextItem::RenderFlags flags) -{ - int w = metrics.width.toInt(); - int h = metrics.height.toInt(); - if (w <= 0 || h <= 0) - return QBitmap(); - - QPixmapData *data = new QX11PixmapData(QPixmapData::BitmapType); - data->resize(w, h); - QPixmap bm(data); - QPainter p(&bm); - p.fillRect(0, 0, w, h, Qt::color0); - p.setPen(Qt::color1); - - QTextItemInt item; - item.flags = flags; - item.ascent = -metrics.y; - item.descent = metrics.height - item.ascent; - item.width = metrics.width; - item.chars = 0; - item.num_chars = 0; - item.logClusters = 0; - item.glyphs = glyphs; - item.fontEngine = this; - item.f = 0; - - p.drawTextItem(QPointF(-metrics.x.toReal(), item.ascent.toReal()), item); - p.end(); - - return QBitmap(bm); -} - -void QFontEngineXLFD::addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) -{ - // cannot use QFontEngine::addBitmapFontToPath(), since we don't - // have direct access to the glyph bitmaps, so we have to draw - // onto a QBitmap, then convert to QImage, then to path - glyph_metrics_t metrics = boundingBox(glyphs); - - QImage image = bitmapForGlyphs(glyphs, metrics, flags).toImage(); - if (image.isNull()) - return; - - image = image.convertToFormat(QImage::Format_Mono); - const uchar *image_data = image.bits(); - uint bpl = image.bytesPerLine(); - // from qfontengine.cpp - extern void qt_addBitmapToPath(qreal x0, qreal y0, const uchar *image_data, - int bpl, int w, int h, QPainterPath *path); - qt_addBitmapToPath(x, y + metrics.y.toReal(), image_data, bpl, image.width(), image.height(), path); -} - -QFontEngine::FaceId QFontEngineXLFD::faceId() const -{ -#ifndef QT_NO_FREETYPE - if (face_id.index == -1) { - face_id = fontFile(_name, &freetype, &synth); - if (_codec) - face_id.encoding = _codec->mibEnum(); - if (freetype) { - const_cast<QFontEngineXLFD *>(this)->fsType = freetype->fsType(); - } else { - face_id.index = 0; - face_id.filename = '-' + QFontEngine::properties().postscriptName; - } - } -#endif - - return face_id; -} - -QFontEngine::Properties QFontEngineXLFD::properties() const -{ - if (face_id.index == -1) - (void)faceId(); - -#ifndef QT_NO_FREETYPE - if (freetype) - return freetype->properties(); -#endif - return QFontEngine::properties(); -} - -void QFontEngineXLFD::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) -{ - if (face_id.index == -1) - (void)faceId(); -#ifndef QT_NO_FREETYPE - if (!freetype) -#endif - { - QFontEngine::getUnscaledGlyph(glyph, path, metrics); - return; - } - -#ifndef QT_NO_FREETYPE - freetype->lock(); - - FT_Face face = freetype->face; - FT_Set_Char_Size(face, face->units_per_EM << 6, face->units_per_EM << 6, 0, 0); - freetype->xsize = face->units_per_EM << 6; - freetype->ysize = face->units_per_EM << 6; - FT_Set_Transform(face, 0, 0); - glyph = glyphIndexToFreetypeGlyphIndex(glyph); - FT_Load_Glyph(face, glyph, FT_LOAD_NO_BITMAP); - - int left = face->glyph->metrics.horiBearingX; - int right = face->glyph->metrics.horiBearingX + face->glyph->metrics.width; - int top = face->glyph->metrics.horiBearingY; - int bottom = face->glyph->metrics.horiBearingY - face->glyph->metrics.height; - - QFixedPoint p; - p.x = 0; - p.y = 0; - metrics->width = QFixed::fromFixed(right-left); - metrics->height = QFixed::fromFixed(top-bottom); - metrics->x = QFixed::fromFixed(left); - metrics->y = QFixed::fromFixed(-top); - metrics->xoff = QFixed::fromFixed(face->glyph->advance.x); - - if (!FT_IS_SCALABLE(freetype->face)) - QFreetypeFace::addBitmapToPath(face->glyph, p, path); - else - QFreetypeFace::addGlyphToPath(face, face->glyph, p, path, face->units_per_EM << 6, face->units_per_EM << 6); - - FT_Set_Transform(face, &freetype->matrix, 0); - freetype->unlock(); -#endif // QT_NO_FREETYPE -} - - -bool QFontEngineXLFD::getSfntTableData(uint tag, uchar *buffer, uint *length) const -{ -#ifndef QT_NO_FREETYPE - if (face_id.index == -1) - (void)faceId(); - if (!freetype) - return false; - return freetype->getSfntTable(tag, buffer, length); -#else - Q_UNUSED(tag); - Q_UNUSED(buffer); - Q_UNUSED(length); - return false; -#endif -} - -int QFontEngineXLFD::synthesized() const -{ - return synth; -} - -QImage QFontEngineXLFD::alphaMapForGlyph(glyph_t glyph) -{ - glyph_metrics_t metrics = boundingBox(glyph); - -/* - printf("a) w=%.2f, h=%.2f, xoff=%.2f, yoff=%.2f, x=%.2f, y=%.2f\n", - metrics.width.toReal(), - metrics.height.toReal(), - metrics.xoff.toReal(), - metrics.yoff.toReal(), - metrics.x.toReal(), - metrics.y.toReal()); -*/ - - QGlyphLayoutArray<1> glyphs; - glyphs.glyphs[0] = glyph; - - QImage image = bitmapForGlyphs(glyphs, metrics).toImage(); -//image.save(QString::fromLatin1("x11cache-%1.png").arg((int)glyph)); - - image = image.convertToFormat(QImage::Format_Indexed8); - QVector<QRgb> colors(256); - for (int i = 0; i < 256; ++i) - colors[i] = qRgba(0, 0, 0, i); - image.setColorTable(colors); - - int width = image.width(); - int height = image.height(); - for (int y = 0; y < height; ++y) { - uchar *bits = image.scanLine(y); - for (int x = 0; x < width; ++x) - bits[x] = ~(bits[x]-1); - } - - return image; -} - -#ifndef QT_NO_FREETYPE - -FT_Face QFontEngineXLFD::non_locked_face() const -{ - return freetype ? freetype->face : 0; -} - -uint QFontEngineXLFD::toUnicode(glyph_t g) const -{ - if (_codec) { - QTextCodec::ConverterState state; - state.flags = QTextCodec::ConvertInvalidToNull; - uchar data[2]; - int l = 1; - if (g > 255) { - data[0] = (g >> 8); - data[1] = (g & 255); - l = 2; - } else { - data[0] = g; - } - QString s = _codec->toUnicode((char *)data, l, &state); - Q_ASSERT(s.length() == 1); - g = s.at(0).unicode(); - } - return g; -} - -glyph_t QFontEngineXLFD::glyphIndexToFreetypeGlyphIndex(glyph_t g) const -{ - return FT_Get_Char_Index(freetype->face, toUnicode(g)); -} -#endif - -#ifndef QT_NO_FONTCONFIG - -// ------------------------------------------------------------------ -// Multi FT engine -// ------------------------------------------------------------------ - -static QFontEngine *engineForPattern(FcPattern *match, const QFontDef &request, int screen) -{ - QFontEngineX11FT *engine = new QFontEngineX11FT(match, request, screen); - if (!engine->invalid()) - return engine; - - delete engine; - QFontEngine *fe = new QFontEngineBox(request.pixelSize); - fe->fontDef = request; - return fe; -} - -QFontEngineMultiFT::QFontEngineMultiFT(QFontEngine *fe, FcPattern *matchedPattern, FcPattern *p, int s, const QFontDef &req) - : QFontEngineMulti(2), request(req), pattern(p), fontSet(0), screen(s) -{ - firstEnginePattern = FcPatternDuplicate(matchedPattern); - engines[0] = fe; - engines.at(0)->ref.ref(); - fontDef = engines[0]->fontDef; - cache_cost = 100; - firstFontIndex = 1; -} - -QFontEngineMultiFT::~QFontEngineMultiFT() -{ - extern QMutex *qt_fontdatabase_mutex(); - QMutexLocker locker(qt_fontdatabase_mutex()); - - FcPatternDestroy(pattern); - if (firstEnginePattern) - FcPatternDestroy(firstEnginePattern); - if (fontSet) - FcFontSetDestroy(fontSet); -} - - -void QFontEngineMultiFT::loadEngine(int at) -{ - extern QMutex *qt_fontdatabase_mutex(); - QMutexLocker locker(qt_fontdatabase_mutex()); - - extern QFontDef qt_FcPatternToQFontDef(FcPattern *pattern, const QFontDef &); - extern FcFontSet *qt_fontSetForPattern(FcPattern *pattern, const QFontDef &request); - - Q_ASSERT(at > 0); - if (!fontSet) { - fontSet = qt_fontSetForPattern(pattern, request); - - // it may happen that the fontset of fallbacks consists of only one font. In this case we - // have to fall back to the box fontengine as we cannot render the glyph. - if (fontSet->nfont == 1 && at == 1 && engines.size() == 2) { - Q_ASSERT(engines.at(at) == 0); - QFontEngine *fe = new QFontEngineBox(request.pixelSize); - fe->fontDef = request; - engines[at] = fe; - return; - } - - if (firstEnginePattern) { - - if (!FcPatternEqual(firstEnginePattern, fontSet->fonts[0])) - firstFontIndex = 0; - - FcPatternDestroy(firstEnginePattern); - firstEnginePattern = 0; - } - - engines.resize(fontSet->nfont + 1 - firstFontIndex); - } - Q_ASSERT(at < engines.size()); - Q_ASSERT(engines.at(at) == 0); - - FcPattern *match = FcFontRenderPrepare(NULL, pattern, fontSet->fonts[at + firstFontIndex - 1]); - QFontDef fontDef = qt_FcPatternToQFontDef(match, this->request); - - // note: we use -1 for the script to make sure that we keep real - // FT engines separate from Multi engines in the font cache - QFontCache::Key key(fontDef, -1, screen); - QFontEngine *fontEngine = QFontCache::instance()->findEngine(key); - if (!fontEngine) { - fontEngine = engineForPattern(match, request, screen); - QFontCache::instance()->insertEngine(key, fontEngine); - } - FcPatternDestroy(match); - fontEngine->ref.ref(); - engines[at] = fontEngine; -} - -// ------------------------------------------------------------------ -// X11 FT engine -// ------------------------------------------------------------------ - - - -Q_GUI_EXPORT void qt_x11ft_convert_pattern(FcPattern *pattern, QByteArray *file_name, int *index, bool *antialias) -{ - FcChar8 *fileName; - FcPatternGetString(pattern, FC_FILE, 0, &fileName); - *file_name = (const char *)fileName; - if (!FcPatternGetInteger(pattern, FC_INDEX, 0, index)) - index = 0; - FcBool b; - if (FcPatternGetBool(pattern, FC_ANTIALIAS, 0, &b) == FcResultMatch) - *antialias = b; -} - - -QFontEngineX11FT::QFontEngineX11FT(FcPattern *pattern, const QFontDef &fd, int screen) - : QFontEngineFT(fd) -{ -// FcPatternPrint(pattern); - - bool antialias = X11->fc_antialias; - QByteArray file_name; - int face_index; - qt_x11ft_convert_pattern(pattern, &file_name, &face_index, &antialias); - QFontEngine::FaceId face_id; - face_id.filename = file_name; - face_id.index = face_index; - - canUploadGlyphsToServer = QApplication::testAttribute(Qt::AA_X11InitThreads) || (qApp->thread() == QThread::currentThread()); - - subpixelType = Subpixel_None; - if (antialias) { - int subpixel = X11->display ? X11->screens[screen].subpixel : FC_RGBA_UNKNOWN; - if (subpixel == FC_RGBA_UNKNOWN) - (void) FcPatternGetInteger(pattern, FC_RGBA, 0, &subpixel); - if (!antialias || subpixel == FC_RGBA_UNKNOWN) - subpixel = FC_RGBA_NONE; - - switch (subpixel) { - case FC_RGBA_NONE: subpixelType = Subpixel_None; break; - case FC_RGBA_RGB: subpixelType = Subpixel_RGB; break; - case FC_RGBA_BGR: subpixelType = Subpixel_BGR; break; - case FC_RGBA_VRGB: subpixelType = Subpixel_VRGB; break; - case FC_RGBA_VBGR: subpixelType = Subpixel_VBGR; break; - default: break; - } - } - - if (fd.hintingPreference != QFont::PreferDefaultHinting) { - switch (fd.hintingPreference) { - case QFont::PreferNoHinting: - default_hint_style = HintNone; - break; - case QFont::PreferVerticalHinting: - default_hint_style = HintLight; - break; - case QFont::PreferFullHinting: - default: - default_hint_style = HintFull; - break; - } - } -#ifdef FC_HINT_STYLE - else { - int hint_style = 0; - // Try to use Xft.hintstyle from XDefaults first if running in GNOME, to match - // the behavior of cairo - if (X11->fc_hint_style > -1 && X11->desktopEnvironment == DE_GNOME) - hint_style = X11->fc_hint_style; - else if (FcPatternGetInteger (pattern, FC_HINT_STYLE, 0, &hint_style) == FcResultNoMatch - && X11->fc_hint_style > -1) - hint_style = X11->fc_hint_style; - - switch (hint_style) { - case FC_HINT_NONE: - default_hint_style = HintNone; - break; - case FC_HINT_SLIGHT: - default_hint_style = HintLight; - break; - case FC_HINT_MEDIUM: - default_hint_style = HintMedium; - break; - default: - default_hint_style = HintFull; - break; - } - } -#endif - -#if defined(FC_AUTOHINT) && defined(FT_LOAD_FORCE_AUTOHINT) - { - bool autohint = false; - - FcBool b; - if (FcPatternGetBool(pattern, FC_AUTOHINT, 0, &b) == FcResultMatch) - autohint = b; - - if (autohint) - default_load_flags |= FT_LOAD_FORCE_AUTOHINT; - } -#endif - -#if defined(FC_LCD_FILTER) && defined(FT_LCD_FILTER_H) - { - int filter = FC_LCD_FILTER_NONE; - if (FcPatternGetInteger(pattern, FC_LCD_FILTER, 0, &filter) == FcResultMatch) { - switch (filter) { - case FC_LCD_FILTER_NONE: - lcdFilterType = FT_LCD_FILTER_NONE; - break; - case FC_LCD_FILTER_DEFAULT: - lcdFilterType = FT_LCD_FILTER_DEFAULT; - break; - case FC_LCD_FILTER_LIGHT: - lcdFilterType = FT_LCD_FILTER_LIGHT; - break; - case FC_LCD_FILTER_LEGACY: - lcdFilterType = FT_LCD_FILTER_LEGACY; - break; - default: - // new unknown lcd filter type?! - break; - } - } - } -#endif - -#ifdef FC_EMBEDDED_BITMAP - { - FcBool b; - if (FcPatternGetBool(pattern, FC_EMBEDDED_BITMAP, 0, &b) == FcResultMatch) - embeddedbitmap = b; - } -#endif - - GlyphFormat defaultFormat = Format_None; - -#ifndef QT_NO_XRENDER - if (X11->use_xrender) { - int format = PictStandardA8; - if (!antialias) - format = PictStandardA1; - else if (subpixelType == Subpixel_RGB - || subpixelType == Subpixel_BGR - || subpixelType == Subpixel_VRGB - || subpixelType == Subpixel_VBGR) - format = PictStandardARGB32; - xglyph_format = format; - - if (subpixelType != QFontEngineFT::Subpixel_None) - defaultFormat = Format_A32; - else if (antialias) - defaultFormat = Format_A8; - else - defaultFormat = Format_Mono; - } -#endif - - if (!init(face_id, antialias, defaultFormat)) - return; - - if (!freetype->charset) { - FcCharSet *cs; - FcPatternGetCharSet (pattern, FC_CHARSET, 0, &cs); - freetype->charset = FcCharSetCopy(cs); - } -} - -QFontEngineX11FT::~QFontEngineX11FT() -{ - freeGlyphSets(); -} - -unsigned long QFontEngineX11FT::allocateServerGlyphSet() -{ -#ifndef QT_NO_XRENDER - if (!canUploadGlyphsToServer || !X11->use_xrender) - return 0; - return XRenderCreateGlyphSet(X11->display, XRenderFindStandardFormat(X11->display, xglyph_format)); -#else - return 0; -#endif -} - -void QFontEngineX11FT::freeServerGlyphSet(unsigned long id) -{ -#ifndef QT_NO_XRENDER - if (!id) - return; - XRenderFreeGlyphSet(X11->display, id); -#endif -} - -bool QFontEngineX11FT::uploadGlyphToServer(QGlyphSet *set, uint glyphid, Glyph *g, GlyphInfo *info, int glyphDataSize) const -{ -#ifndef QT_NO_XRENDER - if (!canUploadGlyphsToServer) - return false; - if (g->format == Format_Mono) { - /* - * swap bit order around; FreeType is always MSBFirst - */ - if (BitmapBitOrder(X11->display) != MSBFirst) { - unsigned char *line = g->data; - int i = glyphDataSize; - while (i--) { - unsigned char c; - c = *line; - c = ((c << 1) & 0xaa) | ((c >> 1) & 0x55); - c = ((c << 2) & 0xcc) | ((c >> 2) & 0x33); - c = ((c << 4) & 0xf0) | ((c >> 4) & 0x0f); - *line++ = c; - } - } - } - - ::Glyph xglyph = glyphid; - XRenderAddGlyphs (X11->display, set->id, &xglyph, info, 1, (const char *)g->data, glyphDataSize); - delete [] g->data; - g->data = 0; - g->format = Format_None; - g->uploadedToServer = true; - return true; -#else - return false; -#endif -} - -QFontEngine *QFontEngineX11FT::cloneWithSize(qreal pixelSize) const -{ - QFontDef fontDef; - fontDef.pixelSize = pixelSize; - QFontEngineX11FT *fe = new QFontEngineX11FT(fontDef); - if (!fe->initFromFontEngine(this)) { - delete fe; - return 0; - } else { -#ifndef QT_NO_XRENDER - fe->xglyph_format = xglyph_format; -#endif - return fe; - } -} - -#endif // QT_NO_FONTCONFIG - -QT_END_NAMESPACE |