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occt/src/Font/Font_FontMgr.cxx
kgv f5e758d239 0031728: Visualization, Font_FontMgr - provide function to register fallback fonts in application level
Added public method Font_FontMgr::AddFontAlias() for registering custom aliases and fallback fonts.
vfont command has been extended with arguments -aliases, -addAlias, -removeAlias, -clearAlias and -clearAliases.
2020-09-02 19:38:48 +03:00

1161 lines
40 KiB
C++

// Created on: 2008-01-20
// Created by: Alexander A. BORODIN
// Copyright (c) 2008-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <Font_FontMgr.hxx>
#include <Font_NameOfFont.hxx>
#include <Font_FTLibrary.hxx>
#include <Font_SystemFont.hxx>
#include <Message.hxx>
#include <Message_Messenger.hxx>
#include <NCollection_Buffer.hxx>
#include <NCollection_List.hxx>
#include <NCollection_Map.hxx>
#include <OSD_Environment.hxx>
#include <Standard_Stream.hxx>
#include <Standard_Type.hxx>
#include <TCollection_HAsciiString.hxx>
#include "Font_DejavuSans_Latin_woff.pxx"
#include <ft2build.h>
#include FT_FREETYPE_H
IMPLEMENT_STANDARD_RTTIEXT(Font_FontMgr,Standard_Transient)
#if defined(_WIN32)
#include <windows.h>
#include <stdlib.h>
#ifdef _MSC_VER
#pragma comment (lib, "freetype.lib")
#endif
namespace
{
// list of supported extensions
static Standard_CString Font_FontMgr_Extensions[] =
{
"ttf",
"otf",
"ttc",
NULL
};
}
#else
#include <OSD_DirectoryIterator.hxx>
#include <OSD_FileIterator.hxx>
#include <OSD_Path.hxx>
#include <OSD_File.hxx>
#include <OSD_OpenMode.hxx>
#include <OSD_Protection.hxx>
namespace
{
// list of supported extensions
static Standard_CString Font_FontMgr_Extensions[] =
{
"ttf",
"otf",
"ttc",
"pfa",
"pfb",
#ifdef __APPLE__
// Datafork TrueType (OS X), obsolete
//"dfont",
#endif
NULL
};
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(__EMSCRIPTEN__)
// X11 configuration file in plain text format (obsolete - doesn't exists in modern distributives)
static Standard_CString myFontServiceConf[] = {"/etc/X11/fs/config",
"/usr/X11R6/lib/X11/fs/config",
"/usr/X11/lib/X11/fs/config",
NULL
};
// Although fontconfig library can be built for various platforms,
// practically it is useful only on desktop Linux distributions, where it is always packaged.
#include <fontconfig/fontconfig.h>
#endif
#ifdef __APPLE__
// default fonts paths in Mac OS X
static Standard_CString myDefaultFontsDirs[] = {"/System/Library/Fonts",
"/Library/Fonts",
NULL
};
#else
// default fonts paths in most Unix systems (Linux and others)
static Standard_CString myDefaultFontsDirs[] = {"/system/fonts", // Android
"/usr/share/fonts",
"/usr/local/share/fonts",
NULL
};
#endif
static void addDirsRecursively (const OSD_Path& thePath,
NCollection_Map<TCollection_AsciiString>& theDirsMap)
{
TCollection_AsciiString aDirName;
thePath.SystemName (aDirName);
if (!theDirsMap.Add (aDirName))
{
return;
}
for (OSD_DirectoryIterator aDirIterator (thePath, "*"); aDirIterator.More(); aDirIterator.Next())
{
OSD_Path aChildDirPath;
aDirIterator.Values().Path (aChildDirPath);
TCollection_AsciiString aChildDirName;
aChildDirPath.SystemName (aChildDirName);
if (!aChildDirName.IsEqual (".") && !aChildDirName.IsEqual (".."))
{
aChildDirName = aDirName + "/" + aChildDirName;
OSD_Path aPath (aChildDirName);
addDirsRecursively (aPath, theDirsMap);
}
}
}
} // anonymous namespace
#endif
//! Retrieve font information.
//! @param theFonts [out] list of validated fonts
//! @param theFTLib [in] font library
//! @param theFontPath [in] path to the file
//! @param theFaceId [in] face id, or -1 to load all faces within the file
//! @return TRUE if at least one font face has been detected
static bool checkFont (NCollection_Sequence<Handle(Font_SystemFont)>& theFonts,
const Handle(Font_FTLibrary)& theFTLib,
const TCollection_AsciiString& theFontPath,
FT_Long theFaceId = -1)
{
const FT_Long aFaceId = theFaceId != -1 ? theFaceId : 0;
FT_Face aFontFace;
FT_Error aFaceError = FT_New_Face (theFTLib->Instance(), theFontPath.ToCString(), aFaceId, &aFontFace);
if (aFaceError != FT_Err_Ok)
{
return false;
}
if (aFontFace->family_name == NULL // skip broken fonts (error in FreeType?)
|| FT_Select_Charmap (aFontFace, ft_encoding_unicode) != 0) // Font_FTFont supports only UNICODE fonts
{
FT_Done_Face (aFontFace);
return false;
}
// FreeType decomposes font definition into Family Name and Style Name,
// so that fonts within the same Family and different Styles can be identified.
// OCCT Font Manager natively handles 4 basic styles: Regular, Bold, Italic and Bold+Italic.
// To include other non-standard Styles, their names can be appended to Family Name; for this, names of normal Styles should be removed.
TCollection_AsciiString aFamily (aFontFace->family_name);
TCollection_AsciiString aStyle (aFontFace->style_name != NULL ? aFontFace->style_name : "");
Font_FontAspect anAspect = Font_FA_Regular;
if (aFontFace->style_flags == (FT_STYLE_FLAG_ITALIC | FT_STYLE_FLAG_BOLD))
{
anAspect = Font_FA_BoldItalic;
const Standard_Integer aRemoveItalic = aStyle.Search ("Italic");
if (aRemoveItalic != -1)
{
aStyle.Remove (aRemoveItalic, 6);
}
else
{
// synonym
const Standard_Integer aRemoveOblique = aStyle.Search ("Oblique");
if (aRemoveOblique != -1)
{
aStyle.Remove (aRemoveOblique, 7);
}
}
const Standard_Integer aRemoveBold = aStyle.Search ("Bold");
if (aRemoveBold != -1)
{
aStyle.Remove (aRemoveBold, 4);
}
}
else if (aFontFace->style_flags == FT_STYLE_FLAG_ITALIC)
{
anAspect = Font_FA_Italic;
const Standard_Integer aRemoveItalic = aStyle.Search ("Italic");
if (aRemoveItalic != -1)
{
aStyle.Remove (aRemoveItalic, 6);
}
else
{
// synonym
const Standard_Integer aRemoveOblique = aStyle.Search ("Oblique");
if (aRemoveOblique != -1)
{
aStyle.Remove (aRemoveOblique, 7);
}
}
}
else if (aFontFace->style_flags == FT_STYLE_FLAG_BOLD)
{
anAspect = Font_FA_Bold;
const Standard_Integer aRemoveBold = aStyle.Search ("Bold");
if (aRemoveBold != -1)
{
aStyle.Remove (aRemoveBold, 4);
}
}
const Standard_Integer aRemoveReg = aStyle.Search ("Regular");
if (aRemoveReg != -1)
{
aStyle.Remove (aRemoveReg, 7);
}
else
{
// synonym
const Standard_Integer aRemoveBook = aStyle.Search ("Book");
if (aRemoveBook != -1)
{
aStyle.Remove (aRemoveBook, 4);
}
}
aStyle.LeftAdjust();
aStyle.RightAdjust();
for (;;)
{
// remove double spaces after removal of several keywords in-between, like "Condensed Bold Italic Oblique"
const Standard_Integer aRemoveSpace = aStyle.Search (" ");
if (aRemoveSpace == -1)
{
break;
}
aStyle.Remove (aRemoveSpace, 1);
}
if (!aStyle.IsEmpty())
{
aFamily = aFamily + " " + aStyle;
}
Handle(Font_SystemFont) aResult = new Font_SystemFont (aFamily);
aResult->SetFontPath (anAspect, theFontPath, (Standard_Integer )aFaceId);
// automatically identify some known single-line fonts
aResult->SetSingleStrokeFont (aResult->FontKey().StartsWith ("olf "));
theFonts.Append (aResult);
if (theFaceId < aFontFace->num_faces)
{
const FT_Long aNbInstances = aFontFace->style_flags >> 16;
for (FT_Long anInstIter = 1; anInstIter < aNbInstances; ++anInstIter)
{
const FT_Long aSubFaceId = aFaceId + (anInstIter << 16);
checkFont (theFonts, theFTLib, theFontPath, aSubFaceId);
}
}
if (theFaceId == -1)
{
for (FT_Long aFaceIter = 1; aFaceIter < aFontFace->num_faces; ++aFaceIter)
{
checkFont (theFonts, theFTLib, theFontPath, aFaceIter);
}
}
FT_Done_Face (aFontFace);
return true;
}
// =======================================================================
// function : GetInstance
// purpose :
// =======================================================================
Handle(Font_FontMgr) Font_FontMgr::GetInstance()
{
static Handle(Font_FontMgr) _mgr;
if (_mgr.IsNull())
{
_mgr = new Font_FontMgr();
}
return _mgr;
}
// =======================================================================
// function : ToUseUnicodeSubsetFallback
// purpose :
// =======================================================================
Standard_Boolean& Font_FontMgr::ToUseUnicodeSubsetFallback()
{
static Standard_Boolean TheToUseUnicodeSubsetFallback = true;
return TheToUseUnicodeSubsetFallback;
}
// =======================================================================
// function : AddFontAlias
// purpose :
// =======================================================================
bool Font_FontMgr::AddFontAlias (const TCollection_AsciiString& theAliasName,
const TCollection_AsciiString& theFontName)
{
TCollection_AsciiString anAliasName (theAliasName);
anAliasName.LowerCase();
Handle(Font_FontAliasSequence) anAliases;
if (!myFontAliases.Find (anAliasName, anAliases))
{
anAliases = new Font_FontAliasSequence();
myFontAliases.Bind (anAliasName, anAliases);
}
for (Font_FontAliasSequence::Iterator anAliasIter (*anAliases); anAliasIter.More(); anAliasIter.Next())
{
if (anAliasIter.Value().FontName.IsEqual (anAliasName))
{
return false;
}
}
anAliases->Append (Font_FontAlias (theFontName));
return true;
}
// =======================================================================
// function : RemoveFontAlias
// purpose :
// =======================================================================
bool Font_FontMgr::RemoveFontAlias (const TCollection_AsciiString& theAliasName,
const TCollection_AsciiString& theFontName)
{
if (theAliasName.IsEmpty())
{
if (myFontAliases.IsEmpty())
{
return false;
}
myFontAliases.Clear();
return true;
}
TCollection_AsciiString anAliasName (theAliasName);
anAliasName.LowerCase();
Handle(Font_FontAliasSequence) anAliases;
if (!myFontAliases.Find (anAliasName, anAliases))
{
return false;
}
if (theFontName.IsEmpty())
{
myFontAliases.UnBind (anAliasName);
return true;
}
for (Font_FontAliasSequence::Iterator aFontIter (*anAliases); aFontIter.More(); aFontIter.Next())
{
if (aFontIter.Value().FontName.IsEqual (theFontName))
{
anAliases->Remove (aFontIter);
if (anAliases->IsEmpty())
{
myFontAliases.UnBind (anAliasName);
}
return true;
}
}
return false;
}
// =======================================================================
// function : GetAllAliases
// purpose :
// =======================================================================
void Font_FontMgr::GetAllAliases (TColStd_SequenceOfHAsciiString& theAliases) const
{
for (NCollection_DataMap<TCollection_AsciiString, Handle(Font_FontAliasSequence)>::Iterator anAliasIter (myFontAliases);
anAliasIter.More(); anAliasIter.Next())
{
theAliases.Append (new TCollection_HAsciiString (anAliasIter.Key()));
}
}
// =======================================================================
// function : GetFontAliases
// purpose :
// =======================================================================
void Font_FontMgr::GetFontAliases (TColStd_SequenceOfHAsciiString& theFontNames,
const TCollection_AsciiString& theAliasName) const
{
TCollection_AsciiString anAliasName (theAliasName);
anAliasName.LowerCase();
Handle(Font_FontAliasSequence) anAliases;
if (!myFontAliases.Find (anAliasName, anAliases))
{
return;
}
for (Font_FontAliasSequence::Iterator aFontIter (*anAliases); aFontIter.More(); aFontIter.Next())
{
theFontNames.Append (new TCollection_HAsciiString (aFontIter.Value().FontName));
}
}
// =======================================================================
// function : addFontAlias
// purpose :
// =======================================================================
void Font_FontMgr::addFontAlias (const TCollection_AsciiString& theAliasName,
const Handle(Font_FontAliasSequence)& theAliases,
Font_FontAspect theAspect)
{
if (theAliases.IsNull()
|| theAliases->IsEmpty())
{
return;
}
Handle(Font_FontAliasSequence) anAliases = theAliases;
if (theAspect != Font_FA_Undefined)
{
anAliases = new Font_FontAliasSequence();
for (Font_FontAliasSequence::Iterator anAliasIter (*theAliases); anAliasIter.More(); anAliasIter.Next())
{
const TCollection_AsciiString& aName = anAliasIter.Value().FontName;
anAliases->Append (Font_FontAlias (aName, theAspect));
}
}
TCollection_AsciiString anAliasName (theAliasName);
anAliasName.LowerCase();
myFontAliases.Bind (anAliasName, anAliases);
}
// =======================================================================
// function : Font_FontMgr
// purpose :
// =======================================================================
Font_FontMgr::Font_FontMgr()
: myToTraceAliases (Standard_False)
{
Handle(Font_FontAliasSequence) aMono = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aSerif = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aSans = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aSymbol = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aScript = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aWinDin = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) anIris = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aCJK = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) aKorean = new Font_FontAliasSequence();
Handle(Font_FontAliasSequence) anArab = new Font_FontAliasSequence();
// best matches - pre-installed on Windows, some of them are pre-installed on macOS,
// and sometimes them can be found installed on other systems (by user)
aMono ->Append (Font_FontAlias ("courier new"));
aSerif ->Append (Font_FontAlias ("times new roman"));
aSans ->Append (Font_FontAlias ("arial"));
aSymbol->Append (Font_FontAlias ("symbol"));
aScript->Append (Font_FontAlias ("script"));
aWinDin->Append (Font_FontAlias ("wingdings"));
anIris ->Append (Font_FontAlias ("lucida console"));
#if defined(__ANDROID__)
// Noto font family is usually installed on Android 6+ devices
aMono ->Append (Font_FontAlias ("noto mono"));
aSerif ->Append (Font_FontAlias ("noto serif"));
// Droid font family is usually installed on Android 4+ devices
aMono ->Append (Font_FontAlias ("droid sans mono"));
aSerif ->Append (Font_FontAlias ("droid serif"));
aSans ->Append (Font_FontAlias ("roboto")); // actually DroidSans.ttf
#elif !defined(_WIN32) && !defined(__APPLE__) //X11
aSerif ->Append (Font_FontAlias ("times"));
aSans ->Append (Font_FontAlias ("helvetica"));
// GNU FreeFonts family is usually installed on Linux
aMono ->Append (Font_FontAlias ("freemono"));
aSerif ->Append (Font_FontAlias ("freeserif"));
aSans ->Append (Font_FontAlias ("freesans"));
// DejaVu font family is usually installed on Linux
aMono ->Append (Font_FontAlias ("dejavu sans mono"));
aSerif ->Append (Font_FontAlias ("dejavu serif"));
aSans ->Append (Font_FontAlias ("dejavu sans"));
#endif
// default CJK (Chinese/Japanese/Korean) fonts
aCJK ->Append (Font_FontAlias ("simsun")); // Windows
aCJK ->Append (Font_FontAlias ("droid sans fallback")); // Android, Linux
aCJK ->Append (Font_FontAlias ("noto sans sc")); // Android
aCJK ->Append (Font_FontAlias ("noto sans cjk jp"));
#if defined(_WIN32)
aKorean->Append (Font_FontAlias ("malgun gothic")); // introduced since Vista
aKorean->Append (Font_FontAlias ("gulim")); // used on older systems (Windows XP)
#elif defined(__APPLE__)
aKorean->Append (Font_FontAlias ("applegothic"));
aKorean->Append (Font_FontAlias ("stfangsong"));
#endif
aKorean->Append (Font_FontAlias ("nanumgothic")); // Android, Linux
aKorean->Append (Font_FontAlias ("noto sans kr")); // Android
aKorean->Append (Font_FontAlias ("nanummyeongjo")); // Linux
aKorean->Append (Font_FontAlias ("noto serif cjk jp")); // Linux
aKorean->Append (Font_FontAlias ("noto sans cjk jp")); // Linux
aKorean->Append (Font_FontAlias ("droid sans fallback")); // Linux
#if defined(_WIN32)
anArab->Append (Font_FontAlias ("times new roman"));
#elif defined(__APPLE__)
anArab->Append (Font_FontAlias ("decotype naskh"));
#elif defined(__ANDROID__)
anArab->Append (Font_FontAlias ("droid arabic naskh"));
anArab->Append (Font_FontAlias ("noto naskh arabic"));
#endif
addFontAlias ("mono", aMono);
addFontAlias ("courier", aMono); // Font_NOF_ASCII_MONO
addFontAlias ("monospace", aMono); // Font_NOF_MONOSPACE
addFontAlias ("rock", aSans); // Font_NOF_CARTOGRAPHIC_SIMPLEX
addFontAlias ("sansserif", aSans); // Font_NOF_SANS_SERIF
addFontAlias ("sans-serif", aSans);
addFontAlias ("sans", aSans);
addFontAlias ("arial", aSans);
addFontAlias ("times", aSerif);
addFontAlias ("serif", aSerif); // Font_NOF_SERIF
addFontAlias ("times-roman", aSerif); // Font_NOF_ASCII_SIMPLEX
addFontAlias ("times-bold", aSerif, Font_FA_Bold); // Font_NOF_ASCII_DUPLEX
addFontAlias ("times-italic", aSerif, Font_FA_Italic); // Font_NOF_ASCII_ITALIC_COMPLEX
addFontAlias ("times-bolditalic", aSerif, Font_FA_BoldItalic); // Font_NOF_ASCII_ITALIC_TRIPLEX
addFontAlias ("symbol", aSymbol); // Font_NOF_GREEK_MONO
addFontAlias ("iris", anIris); // Font_NOF_KANJI_MONO
addFontAlias ("korean", aKorean); // Font_NOF_KOREAN
addFontAlias ("cjk", aCJK); // Font_NOF_CJK
addFontAlias ("nsimsun", aCJK);
addFontAlias ("arabic", anArab); // Font_NOF_ARABIC
addFontAlias (Font_NOF_SYMBOL_MONO, aWinDin);
addFontAlias (Font_NOF_ASCII_SCRIPT_SIMPLEX, aScript);
myFallbackAlias = aSans;
InitFontDataBase();
}
// =======================================================================
// function : CheckFont
// purpose :
// =======================================================================
Standard_Boolean Font_FontMgr::CheckFont (NCollection_Sequence<Handle(Font_SystemFont)>& theFonts,
const TCollection_AsciiString& theFontPath) const
{
Handle(Font_FTLibrary) aFtLibrary = new Font_FTLibrary();
return checkFont (theFonts, aFtLibrary, theFontPath, 0);
}
// =======================================================================
// function : CheckFont
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::CheckFont (Standard_CString theFontPath) const
{
Handle(Font_FTLibrary) aFtLibrary = new Font_FTLibrary();
NCollection_Sequence<Handle(Font_SystemFont)> aFonts;
return checkFont (aFonts, aFtLibrary, theFontPath, 0)
? aFonts.First()
: Handle(Font_SystemFont)();
}
// =======================================================================
// function : RegisterFont
// purpose :
// =======================================================================
Standard_Boolean Font_FontMgr::RegisterFont (const Handle(Font_SystemFont)& theFont,
const Standard_Boolean theToOverride)
{
if (theFont.IsNull())
{
return Standard_False;
}
const Standard_Integer anOldIndex = myFontMap.FindIndex (theFont);
if (anOldIndex == 0)
{
myFontMap.Add (theFont);
return Standard_True;
}
Handle(Font_SystemFont) anOldFont = myFontMap.FindKey (anOldIndex);
for (int anAspectIter = 0; anAspectIter < Font_FontAspect_NB; ++anAspectIter)
{
if (anOldFont->FontPath ((Font_FontAspect )anAspectIter).IsEqual (theFont->FontPath ((Font_FontAspect )anAspectIter))
&& anOldFont->FontFaceId ((Font_FontAspect )anAspectIter) == theFont->FontFaceId ((Font_FontAspect )anAspectIter))
{
continue;
}
else if (theToOverride
|| !anOldFont->HasFontAspect ((Font_FontAspect )anAspectIter))
{
anOldFont->SetFontPath ((Font_FontAspect )anAspectIter,
theFont->FontPath ((Font_FontAspect )anAspectIter),
theFont->FontFaceId ((Font_FontAspect )anAspectIter));
}
else if (theFont->HasFontAspect ((Font_FontAspect )anAspectIter))
{
return Standard_False;
}
}
return Standard_True;
}
// =======================================================================
// function : ClearFontDataBase()
// purpose :
// =======================================================================
void Font_FontMgr::ClearFontDataBase()
{
myFontMap.Clear();
}
// =======================================================================
// function : InitFontDataBase
// purpose :
// =======================================================================
void Font_FontMgr::InitFontDataBase()
{
myFontMap.Clear();
Handle(Font_FTLibrary) aFtLibrary = new Font_FTLibrary();
NCollection_Sequence<Handle(Font_SystemFont)> aFonts;
#if defined(OCCT_UWP)
// system font files are not accessible
(void )aFtLibrary;
#elif defined(_WIN32)
// font directory is placed in "C:\Windows\Fonts\"
UINT aStrLength = GetSystemWindowsDirectoryA (NULL, 0);
if (aStrLength == 0)
{
return;
}
char* aWinDir = new char[aStrLength];
GetSystemWindowsDirectoryA (aWinDir, aStrLength);
TCollection_AsciiString aFontsDir (aWinDir);
aFontsDir.AssignCat ("\\Fonts\\");
delete[] aWinDir;
// read fonts list from registry
HKEY aFontsKey;
if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts",
0, KEY_READ, &aFontsKey) != ERROR_SUCCESS)
{
return;
}
NCollection_Map<TCollection_AsciiString> aSupportedExtensions;
for (Standard_Integer anIter = 0; Font_FontMgr_Extensions[anIter] != NULL; ++anIter)
{
Standard_CString anExt = Font_FontMgr_Extensions[anIter];
aSupportedExtensions.Add (TCollection_AsciiString (anExt));
}
static const DWORD aBufferSize = 256;
char aNameBuff[aBufferSize];
char aPathBuff[aBufferSize];
DWORD aNameSize = aBufferSize;
DWORD aPathSize = aBufferSize;
for (DWORD anIter = 0;
RegEnumValueA (aFontsKey, anIter,
aNameBuff, &aNameSize, NULL, NULL,
(LPBYTE )aPathBuff, &aPathSize) != ERROR_NO_MORE_ITEMS;
++anIter, aNameSize = aBufferSize, aPathSize = aBufferSize)
{
aPathBuff[(aPathSize < aBufferSize) ? aPathSize : (aBufferSize - 1)] = '\0'; // ensure string is NULL-terminated
TCollection_AsciiString aFontName (aNameBuff), aFontPath (aPathBuff);
if (aFontPath.Search ("\\") == -1)
{
aFontPath.Insert (1, aFontsDir); // make absolute path
}
// check file extension is in list of supported
const Standard_Integer anExtensionPosition = aFontPath.SearchFromEnd (".") + 1;
if (anExtensionPosition > 0 && anExtensionPosition < aFontPath.Length())
{
TCollection_AsciiString aFontExtension = aFontPath.SubString (anExtensionPosition, aFontPath.Length());
aFontExtension.LowerCase();
if (aSupportedExtensions.Contains (aFontExtension))
{
aFonts.Clear();
checkFont (aFonts, aFtLibrary, aFontPath.ToCString());
RegisterFonts (aFonts, false);
}
}
}
// close registry key
RegCloseKey (aFontsKey);
#else
NCollection_Map<TCollection_AsciiString> aMapOfFontsDirs;
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(__EMSCRIPTEN__)
if (FcConfig* aFcCfg = FcInitLoadConfig())
{
if (FcStrList* aFcFontDir = FcConfigGetFontDirs (aFcCfg))
{
for (;;)
{
FcChar8* aFcFolder = FcStrListNext (aFcFontDir);
if (aFcFolder == NULL)
{
break;
}
TCollection_AsciiString aPathStr ((const char* )aFcFolder);
OSD_Path aPath (aPathStr);
addDirsRecursively (aPath, aMapOfFontsDirs);
}
FcStrListDone (aFcFontDir);
}
FcConfigDestroy (aFcCfg);
}
const OSD_Protection aProtectRead (OSD_R, OSD_R, OSD_R, OSD_R);
if (aMapOfFontsDirs.IsEmpty())
{
Message::SendAlarm ("Font_FontMgr, fontconfig library returns an empty folder list");
// read fonts directories from font service config file (obsolete)
for (Standard_Integer anIter = 0; myFontServiceConf[anIter] != NULL; ++anIter)
{
const TCollection_AsciiString aFileOfFontsPath (myFontServiceConf[anIter]);
OSD_File aFile (aFileOfFontsPath);
if (!aFile.Exists())
{
continue;
}
aFile.Open (OSD_ReadOnly, aProtectRead);
if (!aFile.IsOpen())
{
continue;
}
Standard_Integer aNByte = 256;
Standard_Integer aNbyteRead;
TCollection_AsciiString aStr; // read string with information
while (!aFile.IsAtEnd())
{
Standard_Integer aLocation = -1;
Standard_Integer aPathLocation = -1;
aFile.ReadLine (aStr, aNByte, aNbyteRead); // reading 1 line (256 bytes)
aLocation = aStr.Search ("catalogue=");
if (aLocation < 0)
{
aLocation = aStr.Search ("catalogue =");
}
aPathLocation = aStr.Search ("/");
if (aLocation > 0 && aPathLocation > 0)
{
aStr = aStr.Split (aPathLocation - 1);
TCollection_AsciiString aFontPath;
Standard_Integer aPathNumber = 1;
do
{
// Getting directory paths, which can be splitted by "," or ":"
aFontPath = aStr.Token (":,", aPathNumber);
aFontPath.RightAdjust();
if (!aFontPath.IsEmpty())
{
OSD_Path aPath(aFontPath);
addDirsRecursively (aPath, aMapOfFontsDirs);
}
aPathNumber++;
}
while (!aFontPath.IsEmpty());
}
}
aFile.Close();
}
}
#endif
// append default directories
for (Standard_Integer anIter = 0; myDefaultFontsDirs[anIter] != NULL; ++anIter)
{
Standard_CString anItem = myDefaultFontsDirs[anIter];
TCollection_AsciiString aPathStr (anItem);
OSD_Path aPath (aPathStr);
addDirsRecursively (aPath, aMapOfFontsDirs);
}
NCollection_Map<TCollection_AsciiString> aSupportedExtensions;
for (Standard_Integer anIter = 0; Font_FontMgr_Extensions[anIter] != NULL; ++anIter)
{
Standard_CString anExt = Font_FontMgr_Extensions[anIter];
aSupportedExtensions.Add (TCollection_AsciiString (anExt));
}
for (NCollection_Map<TCollection_AsciiString>::Iterator anIter (aMapOfFontsDirs);
anIter.More(); anIter.Next())
{
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(__EMSCRIPTEN__)
OSD_File aReadFile (anIter.Value() + "/fonts.dir");
if (!aReadFile.Exists())
{
#endif
OSD_Path aFolderPath (anIter.Value());
for (OSD_FileIterator aFileIter (aFolderPath, "*"); aFileIter.More(); aFileIter.Next())
{
OSD_Path aFontFilePath;
aFileIter.Values().Path (aFontFilePath);
TCollection_AsciiString aFontFileName;
aFontFilePath.SystemName (aFontFileName);
aFontFileName = anIter.Value() + "/" + aFontFileName;
aFonts.Clear();
checkFont (aFonts, aFtLibrary, aFontFileName);
RegisterFonts (aFonts, false);
}
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(__EMSCRIPTEN__)
continue;
}
aReadFile.Open (OSD_ReadOnly, aProtectRead);
if (!aReadFile.IsOpen())
{
continue; // invalid fonts directory
}
Standard_Integer aNbyteRead, aNByte = 256;
TCollection_AsciiString aLine (aNByte);
Standard_Boolean isFirstLine = Standard_True;
const TCollection_AsciiString anEncoding ("iso8859-1\n");
while (!aReadFile.IsAtEnd())
{
aReadFile.ReadLine (aLine, aNByte, aNbyteRead);
if (isFirstLine)
{
// first line contains the number of fonts in this file
// just ignoring it...
isFirstLine = Standard_False;
continue;
}
Standard_Integer anExtensionPosition = aLine.Search (".") + 1;
if (anExtensionPosition == 0)
{
continue; // can't find extension position in the font description
}
Standard_Integer anEndOfFileName = aLine.Location (" ", anExtensionPosition, aLine.Length()) - 1;
if (anEndOfFileName < 0 || anEndOfFileName < anExtensionPosition)
{
continue; // font description have empty extension
}
TCollection_AsciiString aFontExtension = aLine.SubString (anExtensionPosition, anEndOfFileName);
aFontExtension.LowerCase();
if (aSupportedExtensions.Contains (aFontExtension) && (aLine.Search (anEncoding) > 0))
{
// In current implementation use fonts with ISO-8859-1 coding page.
// OCCT not give to manage coding page by means of programm interface.
// TODO: make high level interface for choosing necessary coding page.
TCollection_AsciiString aXLFD (aLine.SubString (anEndOfFileName + 2, aLine.Length()));
TCollection_AsciiString aFontPath (anIter.Value().ToCString());
if (aFontPath.SearchFromEnd ("/") != aFontPath.Length())
{
aFontPath.AssignCat ("/");
}
TCollection_AsciiString aFontFileName (aLine.SubString (1, anEndOfFileName));
aFontPath.AssignCat (aFontFileName);
aFonts.Clear();
if (checkFont (aFonts, aFtLibrary, aFontPath))
{
RegisterFonts (aFonts, false);
const Handle(Font_SystemFont)& aNewFont = aFonts.First();
if (!aXLFD.IsEmpty()
&& aXLFD.Search ("-0-0-0-0-") != -1) // ignore non-resizable fonts
{
const TCollection_AsciiString anXName = aXLFD.Token ("-", 2);
Font_FontAspect anXAspect = Font_FA_Regular;
if (aXLFD.Token ("-", 3).IsEqual ("bold")
&& (aXLFD.Token ("-", 4).IsEqual ("i")
|| aXLFD.Token ("-", 4).IsEqual ("o")))
{
anXAspect = Font_FA_BoldItalic;
}
else if (aXLFD.Token ("-", 3).IsEqual ("bold"))
{
anXAspect = Font_FA_Bold;
}
else if (aXLFD.Token ("-", 4).IsEqual ("i")
|| aXLFD.Token ("-", 4).IsEqual ("o"))
{
anXAspect = Font_FA_Italic;
}
Handle(Font_SystemFont) aNewFontFromXLFD = new Font_SystemFont (anXName);
aNewFontFromXLFD->SetFontPath (anXAspect, aFontPath, 0);
if (!aNewFont->IsEqual (aNewFontFromXLFD))
{
RegisterFont (aNewFontFromXLFD, false);
}
}
}
}
}
aReadFile.Close();
#endif
}
#endif
}
// =======================================================================
// function : GetAvailableFontsNames
// purpose :
// =======================================================================
void Font_FontMgr::GetAvailableFontsNames (TColStd_SequenceOfHAsciiString& theFontsNames) const
{
theFontsNames.Clear();
for (NCollection_IndexedMap<Handle(Font_SystemFont), Font_SystemFont>::Iterator aFontIter (myFontMap);
aFontIter.More(); aFontIter.Next())
{
const Handle(Font_SystemFont)& aFont = aFontIter.Value();
theFontsNames.Append (new TCollection_HAsciiString(aFont->FontName()));
}
}
// =======================================================================
// function : GetFont
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::GetFont (const Handle(TCollection_HAsciiString)& theFontName,
const Font_FontAspect theFontAspect,
const Standard_Integer theFontSize) const
{
if ((theFontSize < 2 && theFontSize != -1) || theFontName.IsNull())
{
return Handle(Font_SystemFont)();
}
Handle(Font_SystemFont) aFont = myFontMap.Find (theFontName->String());
return (aFont.IsNull()
|| theFontAspect == Font_FontAspect_UNDEFINED
|| aFont->HasFontAspect (theFontAspect))
? aFont
: Handle(Font_SystemFont)();
}
// =======================================================================
// function : GetFont
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::GetFont (const TCollection_AsciiString& theFontName) const
{
return myFontMap.Find (theFontName);
}
// =======================================================================
// function : FindFallbackFont
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::FindFallbackFont (Font_UnicodeSubset theSubset,
Font_FontAspect theFontAspect) const
{
Font_FontAspect aFontAspect = theFontAspect;
Handle(Font_SystemFont) aFont;
switch (theSubset)
{
case Font_UnicodeSubset_Western: aFont = FindFont (Font_NOF_SANS_SERIF, Font_StrictLevel_Aliases, aFontAspect, false); break;
case Font_UnicodeSubset_Korean: aFont = FindFont (Font_NOF_KOREAN, Font_StrictLevel_Aliases, aFontAspect, false); break;
case Font_UnicodeSubset_CJK: aFont = FindFont (Font_NOF_CJK, Font_StrictLevel_Aliases, aFontAspect, false); break;
case Font_UnicodeSubset_Arabic: aFont = FindFont (Font_NOF_ARABIC, Font_StrictLevel_Aliases, aFontAspect, false); break;
}
if (aFont.IsNull())
{
const char* aRange = "";
switch (theSubset)
{
case Font_UnicodeSubset_Western: aRange = "Western"; break;
case Font_UnicodeSubset_Korean: aRange = "Korean"; break;
case Font_UnicodeSubset_CJK: aRange = "CJK"; break;
case Font_UnicodeSubset_Arabic: aRange = "Arabic"; break;
}
Message::SendFail (TCollection_AsciiString("Font_FontMgr, error: unable to find ") + aRange + " fallback font!");
}
return aFont;
}
// =======================================================================
// function : FindFont
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::FindFont (const TCollection_AsciiString& theFontName,
Font_StrictLevel theStrictLevel,
Font_FontAspect& theFontAspect,
Standard_Boolean theDoFailMsg) const
{
TCollection_AsciiString aFontName (theFontName);
aFontName.LowerCase();
Handle(Font_SystemFont) aFont = myFontMap.Find (aFontName);
if (!aFont.IsNull()
|| theStrictLevel == Font_StrictLevel_Strict)
{
return aFont;
}
// Trying to use font names mapping
for (int aPass = 0; aPass < 2; ++aPass)
{
Handle(Font_FontAliasSequence) anAliases;
if (aPass == 0)
{
myFontAliases.Find (aFontName, anAliases);
}
else if (theStrictLevel == Font_StrictLevel_Any)
{
anAliases = myFallbackAlias;
}
if (anAliases.IsNull()
|| anAliases->IsEmpty())
{
continue;
}
bool isAliasUsed = false, isBestAlias = false;
for (Font_FontAliasSequence::Iterator anAliasIter (*anAliases); anAliasIter.More(); anAliasIter.Next())
{
const Font_FontAlias& anAlias = anAliasIter.Value();
if (Handle(Font_SystemFont) aFont2 = myFontMap.Find (anAlias.FontName))
{
if (aFont.IsNull())
{
aFont = aFont2;
isAliasUsed = true;
}
if ((anAlias.FontAspect != Font_FontAspect_UNDEFINED
&& aFont2->HasFontAspect (anAlias.FontAspect)))
{
// special case - alias refers to styled font (e.g. "times-bold")
isBestAlias = true;
theFontAspect = anAlias.FontAspect;
break;
}
else if (anAlias.FontAspect == Font_FontAspect_UNDEFINED
&& (theFontAspect == Font_FontAspect_UNDEFINED
|| aFont2->HasFontAspect (theFontAspect)))
{
isBestAlias = true;
break;
}
}
}
if (aPass == 0)
{
if (isAliasUsed && myToTraceAliases)
{
Message::SendTrace (TCollection_AsciiString("Font_FontMgr, using font alias '") + aFont->FontName() + "'"
" instead of requested '" + theFontName + "'");
}
if (isBestAlias)
{
return aFont;
}
else if (!aFont.IsNull())
{
break;
}
}
}
if (aFont.IsNull()
&& theStrictLevel == Font_StrictLevel_Any)
{
// try finding ANY font in case if even default fallback alias myFallbackAlias cannot be found
aFont = myFontMap.Find (TCollection_AsciiString());
}
if (aFont.IsNull())
{
if (theDoFailMsg)
{
Message::SendFail ("Font_FontMgr, error: unable to find any font!");
}
return Handle(Font_SystemFont)();
}
if ((theFontAspect != Font_FA_Undefined
&& !aFont->HasFontAspect (theFontAspect))
|| (!aFontName.IsEmpty()
&& !aFontName.IsEqual (aFont->FontKey())))
{
TCollection_AsciiString aDesc = TCollection_AsciiString() + "'" + theFontName + "'"
+ TCollection_AsciiString() + " [" + Font_FontMgr::FontAspectToString (theFontAspect) + "]";
Message::SendWarning (TCollection_AsciiString("Font_FontMgr, warning: unable to find font ")
+ aDesc + "; " + aFont->ToString() + " is used instead");
}
return aFont;
}
// =======================================================================
// function : Font_FontMap::Find
// purpose :
// =======================================================================
Handle(Font_SystemFont) Font_FontMgr::Font_FontMap::Find (const TCollection_AsciiString& theFontName) const
{
if (IsEmpty())
{
return Handle(Font_SystemFont)();
}
else if (theFontName.IsEmpty())
{
return FindKey (1); // return any font
}
TCollection_AsciiString aFontName (theFontName);
aFontName.LowerCase();
for (IndexedMapNode* aNodeIter = (IndexedMapNode* )myData1[::HashCode (aFontName, NbBuckets())];
aNodeIter != NULL; aNodeIter = (IndexedMapNode* )aNodeIter->Next())
{
const Handle(Font_SystemFont)& aKey = aNodeIter->Key1();
if (aKey->FontKey().IsEqual (aFontName))
{
return aKey;
}
}
return Handle(Font_SystemFont)();
}
// =======================================================================
// function : EmbedFallbackFont
// purpose :
// =======================================================================
Handle(NCollection_Buffer) Font_FontMgr::EmbedFallbackFont()
{
return new NCollection_Buffer (Handle(NCollection_BaseAllocator)(),
Font_DejavuSans_Latin_woff_size,
const_cast<Standard_Byte*>(Font_DejavuSans_Latin_woff));
}