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/****************************************************************************\
Part of the XeTeX typesetting system
Copyright (c) 1994-2008 by SIL International
Copyright (c) 2009 by Jonathan Kew
Copyright (c) 2012, 2013 by Jiang Jiang
SIL Author(s): Jonathan Kew
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the copyright holders
shall not be used in advertising or otherwise to promote the sale,
use or other dealings in this Software without prior written
authorization from the copyright holders.
\****************************************************************************/
#ifndef __XETEX_FONT_MANAGER_H
#define __XETEX_FONT_MANAGER_H
#ifdef XETEX_MAC
#include <ApplicationServices/ApplicationServices.h>
typedef CTFontDescriptorRef PlatformFontRef;
#else
#include <fontconfig/fontconfig.h>
#include <ft2build.h>
#include FT_FREETYPE_H
typedef FcPattern* PlatformFontRef;
#endif
#include "XeTeX_ext.h"
#include "XeTeXLayoutInterface.h"
#ifdef __cplusplus /* allow inclusion in plain C files just to get the typedefs above */
#include <string>
#include <map>
#include <list>
#include <vector>
class XeTeXFontMgr
{
public:
static XeTeXFontMgr* GetFontManager();
// returns the global fontmanager (creating it if necessary)
static void Terminate();
// clean up (may be required if using the cocoa implementation)
PlatformFontRef findFont(const char* name, char* variant, double ptSize);
// 1st arg is name as specified by user (C string, UTF-8)
// 2nd is /B/I/AAT/OT/ICU/GR/S=## qualifiers
// 1. try name given as "full name"
// 2. if there's a hyphen, split and try "family-style"
// 3. try as PostScript name
// 4. try name as family with "Regular/Plain/Normal" style
// apply style qualifiers and optical sizing if present
// SIDE EFFECT: sets sReqEngine to 'A' or 'O' or 'G' if appropriate,
// else clears it to 0
// SIDE EFFECT: updates TeX variables /nameoffile/ and /namelength/,
// to match the actual font found
// SIDE EFFECT: edits /variant/ string in-place removing /B or /I
const char* getFullName(PlatformFontRef font) const;
// return the full name of the font, suitable for use in XeTeX source
// without requiring style qualifiers
double getDesignSize(XeTeXFont font);
char getReqEngine() const { return sReqEngine; };
// return the requested rendering technology for the most recent findFont
// or 0 if no specific technology was requested
void setReqEngine(char reqEngine) const { sReqEngine = reqEngine; };
protected:
static XeTeXFontMgr* sFontManager;
static char sReqEngine;
XeTeXFontMgr()
{ }
virtual ~XeTeXFontMgr()
{ }
virtual void initialize() = 0;
virtual void terminate();
virtual std::string getPlatformFontDesc(PlatformFontRef font) const = 0;
class Font;
class Family;
struct OpSizeRec {
double designSize;
double minSize;
double maxSize;
unsigned int subFamilyID;
unsigned int nameCode;
};
class Font {
public:
Font(PlatformFontRef ref)
: m_fullName(NULL), m_psName(NULL), m_familyName(NULL), m_styleName(NULL)
, parent(NULL)
, fontRef(ref), weight(0), width(0), slant(0)
, isReg(false), isBold(false), isItalic(false)
{ opSizeInfo.subFamilyID = 0;
opSizeInfo.designSize = 10.0; } /* default to 10.0pt */
~Font()
{ delete m_fullName; delete m_psName; }
std::string* m_fullName;
std::string* m_psName;
std::string* m_familyName; // default family and style names that should locate this font
std::string* m_styleName;
Family* parent;
PlatformFontRef fontRef;
OpSizeRec opSizeInfo;
uint16_t weight;
uint16_t width;
int16_t slant;
bool isReg;
bool isBold;
bool isItalic;
};
class Family {
public:
Family()
: minWeight(0), maxWeight(0)
, minWidth(0), maxWidth(0)
, minSlant(0), maxSlant(0)
{
styles = new std::map<std::string,Font*>;
}
~Family()
{
delete styles;
}
std::map<std::string,Font*>* styles;
uint16_t minWeight;
uint16_t maxWeight;
uint16_t minWidth;
uint16_t maxWidth;
int16_t minSlant;
int16_t maxSlant;
};
class NameCollection {
public:
std::list<std::string> m_familyNames;
std::list<std::string> m_styleNames;
std::list<std::string> m_fullNames;
std::string m_psName;
std::string m_subFamily;
};
std::map<std::string,Font*> m_nameToFont; // maps full name (as used in TeX source) to font record
std::map<std::string,Family*> m_nameToFamily;
std::map<PlatformFontRef,Font*> m_platformRefToFont;
std::map<std::string,Font*> m_psNameToFont; // maps PS name (as used in .xdv) to font record
int weightAndWidthDiff(const Font* a, const Font* b) const;
int styleDiff(const Font* a, int wt, int wd, int slant) const;
Font* bestMatchFromFamily(const Family* fam, int wt, int wd, int slant) const;
void appendToList(std::list<std::string>* list, const char* str);
void prependToList(std::list<std::string>* list, const char* str);
void addToMaps(PlatformFontRef platformFont, const NameCollection* names);
const OpSizeRec* getOpSize(XeTeXFont font);
virtual void getOpSizeRecAndStyleFlags(Font* theFont);
virtual void searchForHostPlatformFonts(const std::string& name) = 0;
virtual NameCollection* readNames(PlatformFontRef fontRef) = 0;
void die(const char*s, int i) const; /* for fatal internal errors! */
};
#endif /* __cplusplus */
#endif /* __XETEX_FONT_MANAGER_H */
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