0029107: Visualization - SelectMgr_FrustumBuilder constructor without arguments is...
[occt.git] / src / Font / Font_FontMgr.cxx
CommitLineData
b311480e 1// Created on: 2008-01-20
2// Created by: Alexander A. BORODIN
973c2be1 3// Copyright (c) 2008-2014 OPEN CASCADE SAS
b311480e 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
b311480e 6//
d5f74e42 7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
b311480e 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
b311480e 15
7fd59977 16
42cf5bc1 17#include <Font_FontMgr.hxx>
725ef85e 18#include <Font_FTLibrary.hxx>
42cf5bc1 19#include <Font_SystemFont.hxx>
7fd59977 20#include <NCollection_List.hxx>
aff395a3 21#include <NCollection_Map.hxx>
42cf5bc1 22#include <OSD_Environment.hxx>
7fd59977 23#include <Standard_Stream.hxx>
42cf5bc1 24#include <Standard_Type.hxx>
aff395a3 25#include <TCollection_HAsciiString.hxx>
7fd59977 26
aff395a3 27#include <ft2build.h>
28#include FT_FREETYPE_H
25e59720 29IMPLEMENT_STANDARD_RTTIEXT(Font_FontMgr,Standard_Transient)
92efcf78 30
aff395a3 31struct Font_FontMgr_FontAliasMapNode
32{
33 const char * EnumName;
34 const char * FontName;
35 Font_FontAspect FontAspect;
36};
7fd59977 37
aff395a3 38static const Font_FontMgr_FontAliasMapNode Font_FontMgr_MapOfFontsAliases[] =
39{
40
264abd72 41#if defined(_WIN32) || defined(__APPLE__)
aff395a3 42
43 { "Courier" , "Courier New" , Font_FA_Regular },
44 { "Times-Roman" , "Times New Roman", Font_FA_Regular },
45 { "Times-Bold" , "Times New Roman", Font_FA_Bold },
46 { "Times-Italic" , "Times New Roman", Font_FA_Italic },
47 { "Times-BoldItalic" , "Times New Roman", Font_FA_BoldItalic },
48 { "ZapfChancery-MediumItalic", "Script" , Font_FA_Regular },
49 { "Symbol" , "Symbol" , Font_FA_Regular },
50 { "ZapfDingbats" , "WingDings" , Font_FA_Regular },
51 { "Rock" , "Arial" , Font_FA_Regular },
52 { "Iris" , "Lucida Console" , Font_FA_Regular }
53
65360da3 54#elif defined(__ANDROID__)
55
56 { "Courier" , "Droid Sans Mono", Font_FA_Regular },
57 { "Times-Roman" , "Droid Serif" , Font_FA_Regular },
58 { "Times-Bold" , "Droid Serif" , Font_FA_Bold },
59 { "Times-Italic" , "Droid Serif" , Font_FA_Italic },
60 { "Times-BoldItalic" , "Droid Serif" , Font_FA_BoldItalic },
61 { "Arial" , "Roboto" , Font_FA_Regular },
62
aff395a3 63#else //X11
64
65 { "Courier" , "Courier" , Font_FA_Regular },
66 { "Times-Roman" , "Times" , Font_FA_Regular },
67 { "Times-Bold" , "Times" , Font_FA_Bold },
68 { "Times-Italic" , "Times" , Font_FA_Italic },
69 { "Times-BoldItalic" , "Times" , Font_FA_BoldItalic },
65360da3 70 { "Arial" , "Helvetica" , Font_FA_Regular },
aff395a3 71 { "ZapfChancery-MediumItalic", "-adobe-itc zapf chancery-medium-i-normal--*-*-*-*-*-*-iso8859-1" , Font_FA_Regular },
72 { "Symbol" , "-adobe-symbol-medium-r-normal--*-*-*-*-*-*-adobe-fontspecific" , Font_FA_Regular },
73 { "ZapfDingbats" , "-adobe-itc zapf dingbats-medium-r-normal--*-*-*-*-*-*-adobe-fontspecific" , Font_FA_Regular },
74 { "Rock" , "-sgi-rock-medium-r-normal--*-*-*-*-p-*-iso8859-1" , Font_FA_Regular },
75 { "Iris" , "--iris-medium-r-normal--*-*-*-*-m-*-iso8859-1" , Font_FA_Regular }
76#endif
77
78};
79
566f8441 80#define NUM_FONT_ENTRIES (int)(sizeof(Font_FontMgr_MapOfFontsAliases)/sizeof(Font_FontMgr_FontAliasMapNode))
aff395a3 81
65360da3 82#if defined(_WIN32)
7fd59977 83
aff395a3 84 #include <windows.h>
85 #include <stdlib.h>
86
87 #ifdef _MSC_VER
88 #pragma comment (lib, "freetype.lib")
89 #endif
90
91 namespace
7fd59977 92 {
7fd59977 93
aff395a3 94 // list of supported extensions
95 static Standard_CString Font_FontMgr_Extensions[] =
96 {
97 "ttf",
98 "otf",
99 "ttc",
100 NULL
101 };
102
103 };
104
105#else
7fd59977 106
aff395a3 107 #include <OSD_DirectoryIterator.hxx>
65360da3 108 #include <OSD_FileIterator.hxx>
aff395a3 109 #include <OSD_Path.hxx>
110 #include <OSD_File.hxx>
111 #include <OSD_OpenMode.hxx>
112 #include <OSD_Protection.hxx>
7fd59977 113
aff395a3 114 namespace
115 {
116
117 // list of supported extensions
118 static Standard_CString Font_FontMgr_Extensions[] =
119 {
120 "ttf",
121 "otf",
122 "ttc",
123 "pfa",
124 "pfb",
264abd72 125 #ifdef __APPLE__
126 // Datafork TrueType (OS X), obsolete
127 //"dfont",
128 #endif
aff395a3 129 NULL
130 };
131
264abd72 132 #if !defined(__ANDROID__) && !defined(__APPLE__)
aff395a3 133 // X11 configuration file in plain text format (obsolete - doesn't exists in modern distributives)
134 static Standard_CString myFontServiceConf[] = {"/etc/X11/fs/config",
135 "/usr/X11R6/lib/X11/fs/config",
136 "/usr/X11/lib/X11/fs/config",
137 NULL
138 };
264abd72 139 #endif
aff395a3 140
141 #ifdef __APPLE__
142 // default fonts paths in Mac OS X
143 static Standard_CString myDefaultFontsDirs[] = {"/System/Library/Fonts",
144 "/Library/Fonts",
145 NULL
146 };
147 #else
148 // default fonts paths in most Unix systems (Linux and others)
65360da3 149 static Standard_CString myDefaultFontsDirs[] = {"/system/fonts", // Android
150 "/usr/share/fonts",
aff395a3 151 "/usr/local/share/fonts",
152 NULL
153 };
154 #endif
155
156 static void addDirsRecursively (const OSD_Path& thePath,
157 NCollection_Map<TCollection_AsciiString>& theDirsMap)
7fd59977 158 {
aff395a3 159 TCollection_AsciiString aDirName;
160 thePath.SystemName (aDirName);
161 if (!theDirsMap.Add (aDirName))
162 {
163 return;
7fd59977 164 }
7fd59977 165
aff395a3 166 for (OSD_DirectoryIterator aDirIterator (thePath, "*"); aDirIterator.More(); aDirIterator.Next())
7fd59977 167 {
aff395a3 168 OSD_Path aChildDirPath;
169 aDirIterator.Values().Path (aChildDirPath);
170
171 TCollection_AsciiString aChildDirName;
172 aChildDirPath.SystemName (aChildDirName);
173 if (!aChildDirName.IsEqual (".") && !aChildDirName.IsEqual (".."))
174 {
175 aChildDirName = aDirName + "/" + aChildDirName;
176 OSD_Path aPath (aChildDirName);
177 addDirsRecursively (aPath, theDirsMap);
178 }
7fd59977 179 }
7fd59977 180 }
aff395a3 181
68858c7d 182 } // anonymous namespace
aff395a3 183
184#endif
185
186// =======================================================================
187// function : checkFont
188// purpose :
189// =======================================================================
725ef85e 190static Handle(Font_SystemFont) checkFont (const Handle(Font_FTLibrary)& theFTLib,
191 const Standard_CString theFontPath)
aff395a3 192{
193 FT_Face aFontFace;
725ef85e 194 FT_Error aFaceError = FT_New_Face (theFTLib->Instance(), theFontPath, 0, &aFontFace);
aff395a3 195 if (aFaceError != FT_Err_Ok)
196 {
197 return NULL;
7fd59977 198 }
7fd59977 199
aff395a3 200 Font_FontAspect anAspect = Font_FA_Regular;
201 if (aFontFace->style_flags == (FT_STYLE_FLAG_ITALIC | FT_STYLE_FLAG_BOLD))
202 {
203 anAspect = Font_FA_BoldItalic;
204 }
205 else if (aFontFace->style_flags == FT_STYLE_FLAG_ITALIC)
206 {
207 anAspect = Font_FA_Italic;
208 }
209 else if (aFontFace->style_flags == FT_STYLE_FLAG_BOLD)
210 {
211 anAspect = Font_FA_Bold;
212 }
213
508643cf 214 Handle(Font_SystemFont) aResult;
215 if (aFontFace->family_name != NULL // skip broken fonts (error in FreeType?)
216 && FT_Select_Charmap (aFontFace, ft_encoding_unicode) == 0) // Font_FTFont supports only UNICODE fonts
217 {
218 Handle(TCollection_HAsciiString) aFontName = new TCollection_HAsciiString (aFontFace->family_name);
219 Handle(TCollection_HAsciiString) aFontPath = new TCollection_HAsciiString (theFontPath);
220 aResult = new Font_SystemFont (aFontName, anAspect, aFontPath);
221 }
7fd59977 222
aff395a3 223 FT_Done_Face (aFontFace);
7fd59977 224
aff395a3 225 return aResult;
226}
7fd59977 227
aff395a3 228// =======================================================================
229// function : GetInstance
230// purpose :
231// =======================================================================
232Handle(Font_FontMgr) Font_FontMgr::GetInstance()
233{
eeaaaefb 234 static Handle(Font_FontMgr) _mgr;
aff395a3 235 if (_mgr.IsNull())
236 {
eeaaaefb 237 _mgr = new Font_FontMgr();
aff395a3 238 }
7fd59977 239
240 return _mgr;
7fd59977 241}
242
aff395a3 243// =======================================================================
244// function : Font_FontMgr
245// purpose :
246// =======================================================================
247Font_FontMgr::Font_FontMgr()
248{
7fd59977 249 InitFontDataBase();
7fd59977 250}
251
aff395a3 252// =======================================================================
725ef85e 253// function : CheckFont
254// purpose :
255// =======================================================================
256Handle(Font_SystemFont) Font_FontMgr::CheckFont (Standard_CString theFontPath) const
257{
258 Handle(Font_FTLibrary) aFtLibrary = new Font_FTLibrary();
259 return checkFont (aFtLibrary, theFontPath);
260}
261
262// =======================================================================
263// function : RegisterFont
264// purpose :
265// =======================================================================
266Standard_Boolean Font_FontMgr::RegisterFont (const Handle(Font_SystemFont)& theFont,
267 const Standard_Boolean theToOverride)
268{
269 if (theFont.IsNull())
270 {
271 return Standard_False;
272 }
273
274 for (Font_NListOfSystemFont::Iterator aFontIter (myListOfFonts);
275 aFontIter.More(); aFontIter.Next())
276 {
277 if (!aFontIter.Value()->FontName()->IsSameString (theFont->FontName(), Standard_False))
278 {
279 continue;
280 }
281
282 if (theFont->FontAspect() != Font_FA_Undefined
283 && aFontIter.Value()->FontAspect() != theFont->FontAspect())
284 {
285 continue;
286 }
287
288 if (theFont->FontHeight() == -1 || aFontIter.Value()->FontHeight() == -1
289 || theFont->FontHeight() == aFontIter.Value()->FontHeight())
290 {
291 if (theFont->FontPath()->String() == aFontIter.Value()->FontPath()->String())
292 {
293 return Standard_True;
294 }
295 else if (theToOverride)
296 {
297 myListOfFonts.Remove (aFontIter);
298 }
299 else
300 {
301 return Standard_False;
302 }
303 }
304 }
305
306 myListOfFonts.Append (theFont);
307 return Standard_True;
308}
309
310// =======================================================================
aff395a3 311// function : InitFontDataBase
312// purpose :
313// =======================================================================
314void Font_FontMgr::InitFontDataBase()
315{
316 myListOfFonts.Clear();
725ef85e 317 Handle(Font_FTLibrary) aFtLibrary;
7fd59977 318
1ce0716b 319#if defined(OCCT_UWP)
320 // system font files are not accessible
321 (void )aFtLibrary;
322#elif defined(_WIN32)
7fd59977 323
aff395a3 324 // font directory is placed in "C:\Windows\Fonts\"
325 UINT aStrLength = GetSystemWindowsDirectoryA (NULL, 0);
326 if (aStrLength == 0)
a6535b1d 327 {
aff395a3 328 return;
a6535b1d 329 }
aff395a3 330
331 char* aWinDir = new char[aStrLength];
332 GetSystemWindowsDirectoryA (aWinDir, aStrLength);
333 Handle(TCollection_HAsciiString) aFontsDir = new TCollection_HAsciiString (aWinDir);
334 aFontsDir->AssignCat ("\\Fonts\\");
335 delete[] aWinDir;
336
337 // read fonts list from registry
338 HKEY aFontsKey;
339 if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts",
340 0, KEY_READ, &aFontsKey) != ERROR_SUCCESS)
7fd59977 341 {
342 return;
7fd59977 343 }
7fd59977 344
aff395a3 345 NCollection_Map<TCollection_AsciiString> aSupportedExtensions;
346 for (Standard_Integer anIter = 0; Font_FontMgr_Extensions[anIter] != NULL; ++anIter)
7fd59977 347 {
aff395a3 348 Standard_CString anExt = Font_FontMgr_Extensions[anIter];
349 aSupportedExtensions.Add (TCollection_AsciiString (anExt));
7fd59977 350 }
351
725ef85e 352 aFtLibrary = new Font_FTLibrary();
aff395a3 353 static const DWORD aBufferSize = 256;
354 char aNameBuff[aBufferSize];
355 char aPathBuff[aBufferSize];
356 DWORD aNameSize = aBufferSize;
357 DWORD aPathSize = aBufferSize;
358 for (DWORD anIter = 0;
359 RegEnumValueA (aFontsKey, anIter,
360 aNameBuff, &aNameSize, NULL, NULL,
361 (LPBYTE )aPathBuff, &aPathSize) != ERROR_NO_MORE_ITEMS;
362 ++anIter, aNameSize = aBufferSize, aPathSize = aBufferSize)
363 {
364 aPathBuff[(aPathSize < aBufferSize) ? aPathSize : (aBufferSize - 1)] = '\0'; // ensure string is NULL-terminated
7fd59977 365
aff395a3 366 Handle(TCollection_HAsciiString) aFontName = new TCollection_HAsciiString (aNameBuff);
367 Handle(TCollection_HAsciiString) aFontPath = new TCollection_HAsciiString (aPathBuff);
368 if (aFontPath->Search ("\\") == -1)
369 {
370 aFontPath->Insert (1, aFontsDir); // make absolute path
7fd59977 371 }
aff395a3 372
373 // check file extension is in list of supported
374 const Standard_Integer anExtensionPosition = aFontPath->SearchFromEnd (".") + 1;
375 if (anExtensionPosition > 0 && anExtensionPosition < aFontPath->Length())
7fd59977 376 {
aff395a3 377 Handle(TCollection_HAsciiString) aFontExtension = aFontPath->SubString (anExtensionPosition, aFontPath->Length());
378 aFontExtension->LowerCase();
379 if (aSupportedExtensions.Contains (aFontExtension->String()))
380 {
381 Handle(Font_SystemFont) aNewFont = checkFont (aFtLibrary, aFontPath->ToCString());
382 if (!aNewFont.IsNull())
383 {
384 myListOfFonts.Append (aNewFont);
385 }
386 }
7fd59977 387 }
388 }
7fd59977 389
aff395a3 390 // close registry key
391 RegCloseKey (aFontsKey);
392
393#else
7fd59977 394
aff395a3 395 NCollection_Map<TCollection_AsciiString> aMapOfFontsDirs;
264abd72 396#if !defined(__ANDROID__) && !defined(__APPLE__)
aff395a3 397 const OSD_Protection aProtectRead (OSD_R, OSD_R, OSD_R, OSD_R);
7fd59977 398
aff395a3 399 // read fonts directories from font service config file (obsolete)
400 for (Standard_Integer anIter = 0; myFontServiceConf[anIter] != NULL; ++anIter)
7fd59977 401 {
aff395a3 402 const TCollection_AsciiString aFileOfFontsPath (myFontServiceConf[anIter]);
403 OSD_File aFile (aFileOfFontsPath);
404 if (!aFile.Exists())
405 {
406 continue;
407 }
7fd59977 408
aff395a3 409 aFile.Open (OSD_ReadOnly, aProtectRead);
410 if (!aFile.IsOpen())
411 {
412 continue;
413 }
414
415 Standard_Integer aNByte = 256;
416 Standard_Integer aNbyteRead;
417 TCollection_AsciiString aStr; // read string with information
418 while (!aFile.IsAtEnd())
7fd59977 419 {
aff395a3 420 Standard_Integer aLocation = -1;
421 Standard_Integer aPathLocation = -1;
422
423 aFile.ReadLine (aStr, aNByte, aNbyteRead); // reading 1 line (256 bytes)
424 aLocation = aStr.Search ("catalogue=");
425 if (aLocation < 0)
426 {
427 aLocation = aStr.Search ("catalogue =");
428 }
429
430 aPathLocation = aStr.Search ("/");
431 if (aLocation > 0 && aPathLocation > 0)
7fd59977 432 {
aff395a3 433 aStr = aStr.Split (aPathLocation - 1);
434 TCollection_AsciiString aFontPath;
435 Standard_Integer aPathNumber = 1;
436 do
7fd59977 437 {
aff395a3 438 // Getting directory paths, which can be splitted by "," or ":"
439 aFontPath = aStr.Token (":,", aPathNumber);
440 aFontPath.RightAdjust();
441 if (!aFontPath.IsEmpty())
7fd59977 442 {
aff395a3 443 OSD_Path aPath(aFontPath);
444 addDirsRecursively (aPath, aMapOfFontsDirs);
7fd59977 445 }
aff395a3 446 aPathNumber++;
447 }
448 while (!aFontPath.IsEmpty());
7fd59977 449 }
7fd59977 450 }
aff395a3 451 aFile.Close();
7fd59977 452 }
264abd72 453#endif
7fd59977 454
aff395a3 455 // append default directories
456 for (Standard_Integer anIter = 0; myDefaultFontsDirs[anIter] != NULL; ++anIter)
457 {
458 Standard_CString anItem = myDefaultFontsDirs[anIter];
459 TCollection_AsciiString aPathStr (anItem);
460 OSD_Path aPath (aPathStr);
461 addDirsRecursively (aPath, aMapOfFontsDirs);
462 }
463
464 NCollection_Map<TCollection_AsciiString> aSupportedExtensions;
465 for (Standard_Integer anIter = 0; Font_FontMgr_Extensions[anIter] != NULL; ++anIter)
466 {
467 Standard_CString anExt = Font_FontMgr_Extensions[anIter];
468 aSupportedExtensions.Add (TCollection_AsciiString (anExt));
469 }
470
725ef85e 471 aFtLibrary = new Font_FTLibrary();
aff395a3 472 for (NCollection_Map<TCollection_AsciiString>::Iterator anIter (aMapOfFontsDirs);
473 anIter.More(); anIter.Next())
474 {
264abd72 475 #if defined(__ANDROID__) || defined(__APPLE__)
65360da3 476 OSD_Path aFolderPath (anIter.Value());
477 for (OSD_FileIterator aFileIter (aFolderPath, "*"); aFileIter.More(); aFileIter.Next())
478 {
479 OSD_Path aFontFilePath;
480 aFileIter.Values().Path (aFontFilePath);
481
482 TCollection_AsciiString aFontFileName;
483 aFontFilePath.SystemName (aFontFileName);
484 aFontFileName = anIter.Value() + "/" + aFontFileName;
485
486 Handle(Font_SystemFont) aNewFont = checkFont (aFtLibrary, aFontFileName.ToCString());
487 if (!aNewFont.IsNull())
488 {
489 myListOfFonts.Append (aNewFont);
490 }
491 }
492 #else
aff395a3 493 OSD_File aReadFile (anIter.Value() + "/fonts.dir");
494 if (!aReadFile.Exists())
495 {
496 continue; // invalid fonts directory
497 }
498
499 aReadFile.Open (OSD_ReadOnly, aProtectRead);
500 if (!aReadFile.IsOpen())
501 {
502 continue; // invalid fonts directory
503 }
504
505 Standard_Integer aNbyteRead, aNByte = 256;
506 TCollection_AsciiString aLine (aNByte);
507 Standard_Boolean isFirstLine = Standard_True;
508 const TCollection_AsciiString anEncoding ("iso8859-1\n");
509 while (!aReadFile.IsAtEnd())
510 {
511 aReadFile.ReadLine (aLine, aNByte, aNbyteRead);
512 if (isFirstLine)
513 {
514 // first line contains the number of fonts in this file
515 // just ignoring it...
516 isFirstLine = Standard_False;
517 continue;
518 }
7fd59977 519
aff395a3 520 Standard_Integer anExtensionPosition = aLine.Search (".") + 1;
521 if (anExtensionPosition == 0)
522 {
523 continue; // can't find extension position in the font description
524 }
7fd59977 525
aff395a3 526 Standard_Integer anEndOfFileName = aLine.Location (" ", anExtensionPosition, aLine.Length()) - 1;
527 if (anEndOfFileName < 0 || anEndOfFileName < anExtensionPosition)
528 {
529 continue; // font description have empty extension
530 }
7fd59977 531
aff395a3 532 TCollection_AsciiString aFontExtension = aLine.SubString (anExtensionPosition, anEndOfFileName);
533 aFontExtension.LowerCase();
534 if (aSupportedExtensions.Contains (aFontExtension) && (aLine.Search (anEncoding) > 0))
7fd59977 535 {
aff395a3 536 // In current implementation use fonts with ISO-8859-1 coding page.
537 // OCCT not give to manage coding page by means of programm interface.
538 // TODO: make high level interface for choosing necessary coding page.
539 Handle(TCollection_HAsciiString) aXLFD =
540 new TCollection_HAsciiString (aLine.SubString (anEndOfFileName + 2, aLine.Length()));
541 Handle(TCollection_HAsciiString) aFontPath =
542 new TCollection_HAsciiString (anIter.Value().ToCString());
543 if (aFontPath->SearchFromEnd ("/") != aFontPath->Length())
7fd59977 544 {
aff395a3 545 aFontPath->AssignCat ("/");
7fd59977 546 }
aff395a3 547 Handle(TCollection_HAsciiString) aFontFileName =
548 new TCollection_HAsciiString (aLine.SubString (1, anEndOfFileName));
549 aFontPath->AssignCat (aFontFileName);
550
551 Handle(Font_SystemFont) aNewFontFromXLFD = new Font_SystemFont (aXLFD, aFontPath);
552 Handle(Font_SystemFont) aNewFont = checkFont (aFtLibrary, aFontPath->ToCString());
553
554 if (aNewFontFromXLFD->IsValid() && !aNewFont.IsNull() &&
555 !aNewFont->IsEqual (aNewFontFromXLFD))
556 {
557 myListOfFonts.Append (aNewFont);
558 myListOfFonts.Append (aNewFontFromXLFD);
559 }
560 else if (!aNewFont.IsNull())
561 {
562 myListOfFonts.Append (aNewFont);
563 }
564 else if (aNewFontFromXLFD->IsValid())
565 {
566 myListOfFonts.Append (aNewFontFromXLFD);
567 }
aff395a3 568 }
7fd59977 569 }
aff395a3 570 aReadFile.Close();
65360da3 571 #endif
7fd59977 572 }
573#endif
aff395a3 574}
575
576// =======================================================================
577// function : GetAvailableFonts
578// purpose :
579// =======================================================================
580const Font_NListOfSystemFont& Font_FontMgr::GetAvailableFonts() const
581{
582 return myListOfFonts;
583}
584
b514beda 585// =======================================================================
586// function : GetAvailableFontsNames
587// purpose :
588// =======================================================================
aff395a3 589void Font_FontMgr::GetAvailableFontsNames (TColStd_SequenceOfHAsciiString& theFontsNames) const
590{
591 theFontsNames.Clear();
592 for (Font_NListOfSystemFont::Iterator anIter(myListOfFonts); anIter.More(); anIter.Next())
593 {
594 theFontsNames.Append (anIter.Value()->FontName());
595 }
7fd59977 596}
597
b514beda 598// =======================================================================
599// function : GetFont
600// purpose :
601// =======================================================================
aff395a3 602Handle(Font_SystemFont) Font_FontMgr::GetFont (const Handle(TCollection_HAsciiString)& theFontName,
b514beda 603 const Font_FontAspect theFontAspect,
aff395a3 604 const Standard_Integer theFontSize) const
7fd59977 605{
aff395a3 606 if ( (theFontSize < 2 && theFontSize != -1) || theFontName.IsNull())
607 {
65360da3 608 return NULL;
aff395a3 609 }
610
725ef85e 611 for (Font_NListOfSystemFont::Iterator aFontsIterator (myListOfFonts);
612 aFontsIterator.More(); aFontsIterator.Next())
aff395a3 613 {
614 if (!theFontName->IsEmpty() && !aFontsIterator.Value()->FontName()->IsSameString (theFontName, Standard_False))
615 {
616 continue;
617 }
618
619 if (theFontAspect != Font_FA_Undefined && aFontsIterator.Value()->FontAspect() != theFontAspect)
620 {
621 continue;
622 }
623
624 if (theFontSize == -1 || aFontsIterator.Value()->FontHeight() == -1 ||
625 theFontSize == aFontsIterator.Value()->FontHeight())
626 {
627 return aFontsIterator.Value();
628 }
629 }
630
631 return NULL;
7fd59977 632}
633
b514beda 634// =======================================================================
635// function : FindFont
636// purpose :
637// =======================================================================
aff395a3 638Handle(Font_SystemFont) Font_FontMgr::FindFont (const Handle(TCollection_HAsciiString)& theFontName,
b514beda 639 const Font_FontAspect theFontAspect,
aff395a3 640 const Standard_Integer theFontSize) const
641{
642 Handle(TCollection_HAsciiString) aFontName = theFontName;
643 Font_FontAspect aFontAspect = theFontAspect;
b514beda 644 Standard_Integer aFontSize = theFontSize;
aff395a3 645
646 Handle(Font_SystemFont) aFont = GetFont (aFontName, aFontAspect, aFontSize);
aff395a3 647 if (!aFont.IsNull())
648 {
649 return aFont;
650 }
651
652 // Trying to use font names mapping
653 for (Standard_Integer anIter = 0; anIter < NUM_FONT_ENTRIES; ++anIter)
654 {
655 Handle(TCollection_HAsciiString) aFontAlias =
656 new TCollection_HAsciiString (Font_FontMgr_MapOfFontsAliases[anIter].EnumName);
7fd59977 657
aff395a3 658 if (aFontAlias->IsSameString (aFontName, Standard_False))
659 {
660 aFontName = new TCollection_HAsciiString (Font_FontMgr_MapOfFontsAliases[anIter].FontName);
661 aFontAspect = Font_FontMgr_MapOfFontsAliases[anIter].FontAspect;
662 break;
663 }
664 }
665
b514beda 666 // check font family alias with specified font aspect
667 if (theFontAspect != Font_FA_Undefined
668 && theFontAspect != Font_FA_Regular
669 && theFontAspect != aFontAspect)
670 {
671 aFont = GetFont (aFontName, theFontAspect, aFontSize);
672 if (!aFont.IsNull())
673 {
674 return aFont;
675 }
676 }
aff395a3 677
b514beda 678 // check font alias with aspect in the name
679 aFont = GetFont (aFontName, aFontAspect, aFontSize);
aff395a3 680 if (!aFont.IsNull())
681 {
682 return aFont;
683 }
684
685 // Requested family name not found -> search for any font family with given aspect and height
686 aFontName = new TCollection_HAsciiString ("");
687 aFont = GetFont (aFontName, aFontAspect, aFontSize);
aff395a3 688 if (!aFont.IsNull())
689 {
690 return aFont;
691 }
692
693 // The last resort: trying to use ANY font available in the system
694 aFontAspect = Font_FA_Undefined;
695 aFontSize = -1;
696 aFont = GetFont (aFontName, aFontAspect, aFontSize);
aff395a3 697 if (!aFont.IsNull())
698 {
699 return aFont;
700 }
701
702 return NULL; // Fonts are not found in the system.
703}