summaryrefslogtreecommitdiffstats
path: root/gfx/graphite2/src/inc/Face.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /gfx/graphite2/src/inc/Face.h
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/graphite2/src/inc/Face.h')
-rw-r--r--gfx/graphite2/src/inc/Face.h225
1 files changed, 225 insertions, 0 deletions
diff --git a/gfx/graphite2/src/inc/Face.h b/gfx/graphite2/src/inc/Face.h
new file mode 100644
index 0000000000..355c5aa0d3
--- /dev/null
+++ b/gfx/graphite2/src/inc/Face.h
@@ -0,0 +1,225 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program 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
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <cstdio>
+
+#include "graphite2/Font.h"
+
+#include "inc/Main.h"
+#include "inc/FeatureMap.h"
+#include "inc/TtfUtil.h"
+#include "inc/Silf.h"
+#include "inc/Error.h"
+
+namespace graphite2 {
+
+class Cmap;
+class FileFace;
+class GlyphCache;
+class NameTable;
+class json;
+class Font;
+
+
+using TtfUtil::Tag;
+
+// These are the actual tags, as distinct from the consecutive IDs in TtfUtil.h
+
+class Face
+{
+ // Prevent any kind of copying
+ Face(const Face&);
+ Face& operator=(const Face&);
+
+public:
+ class Table;
+ static float default_glyph_advance(const void* face_ptr, gr_uint16 glyphid);
+
+ Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops);
+ virtual ~Face();
+
+ virtual bool runGraphite(Segment *seg, const Silf *silf) const;
+
+public:
+ bool readGlyphs(uint32 faceOptions);
+ bool readGraphite(const Table & silf);
+ bool readFeatures();
+ void takeFileFace(FileFace* pFileFace/*takes ownership*/);
+
+ const SillMap & theSill() const;
+ const GlyphCache & glyphs() const;
+ Cmap & cmap() const;
+ NameTable * nameTable() const;
+ void setLogger(FILE *log_file);
+ json * logger() const throw();
+
+ const Silf * chooseSilf(uint32 script) const;
+ uint16 languageForLocale(const char * locale) const;
+
+ // Features
+ uint16 numFeatures() const;
+ const FeatureRef * featureById(uint32 id) const;
+ const FeatureRef * feature(uint16 index) const;
+
+ // Glyph related
+ int32 getGlyphMetric(uint16 gid, uint8 metric) const;
+ uint16 findPseudo(uint32 uid) const;
+
+ // Errors
+ unsigned int error() const { return m_error; }
+ bool error(Error e) { m_error = e.error(); return false; }
+ unsigned int error_context() const { return m_error; }
+ void error_context(unsigned int errcntxt) { m_errcntxt = errcntxt; }
+
+ CLASS_NEW_DELETE;
+private:
+ SillMap m_Sill;
+ gr_face_ops m_ops;
+ const void * m_appFaceHandle; // non-NULL
+ FileFace * m_pFileFace; //owned
+ mutable GlyphCache * m_pGlyphFaceCache; // owned - never NULL
+ mutable Cmap * m_cmap; // cmap cache if available
+ mutable NameTable * m_pNames;
+ mutable json * m_logger;
+ unsigned int m_error;
+ unsigned int m_errcntxt;
+protected:
+ Silf * m_silfs; // silf subtables.
+ uint16 m_numSilf; // num silf subtables in the silf table
+private:
+ uint16 m_ascent,
+ m_descent;
+#ifdef GRAPHITE2_TELEMETRY
+public:
+ mutable telemetry tele;
+#endif
+};
+
+
+
+inline
+const SillMap & Face::theSill() const
+{
+ return m_Sill;
+}
+
+inline
+uint16 Face::numFeatures() const
+{
+ return m_Sill.theFeatureMap().numFeats();
+}
+
+inline
+const FeatureRef * Face::featureById(uint32 id) const
+{
+ return m_Sill.theFeatureMap().findFeatureRef(id);
+}
+
+inline
+const FeatureRef *Face::feature(uint16 index) const
+{
+ return m_Sill.theFeatureMap().feature(index);
+}
+
+inline
+const GlyphCache & Face::glyphs() const
+{
+ return *m_pGlyphFaceCache;
+}
+
+inline
+Cmap & Face::cmap() const
+{
+ return *m_cmap;
+};
+
+inline
+json * Face::logger() const throw()
+{
+ return m_logger;
+}
+
+
+
+class Face::Table
+{
+ const Face * _f;
+ mutable const byte * _p;
+ size_t _sz;
+ bool _compressed;
+
+ Error decompress();
+
+ void release();
+
+public:
+ Table() throw();
+ Table(const Face & face, const Tag n, uint32 version=0xffffffff) throw();
+ ~Table() throw();
+ Table(const Table && rhs) throw();
+
+ operator const byte * () const throw();
+
+ size_t size() const throw();
+ Table & operator = (const Table && rhs) throw();
+};
+
+inline
+Face::Table::Table() throw()
+: _f(0), _p(0), _sz(0), _compressed(false)
+{
+}
+
+inline
+Face::Table::Table(const Table && rhs) throw()
+: _f(rhs._f), _p(rhs._p), _sz(rhs._sz), _compressed(rhs._compressed)
+{
+ rhs._p = 0;
+}
+
+inline
+Face::Table::~Table() throw()
+{
+ release();
+}
+
+inline
+Face::Table::operator const byte * () const throw()
+{
+ return _p;
+}
+
+inline
+size_t Face::Table::size() const throw()
+{
+ return _sz;
+}
+
+} // namespace graphite2
+
+struct gr_face : public graphite2::Face {};