1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 // MARKER(update_precomp.py): autogen include statement, do not remove 23 #include "precompiled_vcl.hxx" 24 25 #include "impfont.hxx" 26 #include "outfont.hxx" 27 #include "sallayout.hxx" 28 29 #include "aqua/salinst.h" 30 #include "aqua/saldata.hxx" 31 #include "aqua/salgdi.h" 32 #include "ctfonts.hxx" 33 34 #include "basegfx/polygon/b2dpolygon.hxx" 35 #include "basegfx/matrix/b2dhommatrix.hxx" 36 37 #ifndef DISABLE_CORETEXT_DYNLOAD 38 #include <dlfcn.h> 39 #endif 40 41 // ======================================================================= 42 43 // CoreText specific physically available font face 44 class CTFontData 45 : public ImplMacFontData 46 { 47 public: 48 explicit CTFontData( const ImplDevFontAttributes&, sal_IntPtr nFontId ); 49 virtual ~CTFontData( void ); 50 virtual ImplFontData* Clone( void ) const; 51 52 virtual ImplMacTextStyle* CreateMacTextStyle( const ImplFontSelectData& ) const; 53 virtual ImplFontEntry* CreateFontInstance( /*const*/ ImplFontSelectData& ) const; 54 virtual int GetFontTable( const char pTagName[5], unsigned char* ) const; 55 }; 56 57 // ======================================================================= 58 59 class CTFontList 60 : public SystemFontList 61 { 62 public: 63 explicit CTFontList( void ); 64 virtual ~CTFontList( void ); 65 66 bool Init( void ); 67 void AddFont( CTFontData* ); 68 69 virtual void AnnounceFonts( ImplDevFontList& ) const; 70 virtual ImplMacFontData* GetFontDataFromId( sal_IntPtr ) const; 71 72 private: 73 CTFontCollectionRef mpCTFontCollection; 74 CFArrayRef mpCTFontArray; 75 76 typedef std::hash_map<sal_IntPtr,CTFontData*> CTFontContainer; 77 CTFontContainer maFontContainer; 78 }; 79 80 // ======================================================================= 81 82 CTTextStyle::CTTextStyle( const ImplFontSelectData& rFSD ) 83 : ImplMacTextStyle( rFSD ) 84 , mpStyleDict( NULL ) 85 { 86 mpFontData = (CTFontData*)rFSD.mpFontData; 87 const ImplFontSelectData* const pReqFont = &rFSD; 88 89 double fScaledFontHeight = pReqFont->mfExactHeight; 90 #if 0 // TODO: does CoreText need font size limiting??? 91 static const float fMaxFontHeight = 144.0; // TODO: is there a limit for CoreText? 92 if( fScaledFontHeight > fMaxFontHeight ) 93 { 94 mfFontScale = fScaledFontHeight / fMaxFontHeight; 95 fScaledFontHeight = fMaxFontHeight; 96 } 97 #endif 98 99 // convert font rotation to radian 100 mfFontRotation = pReqFont->mnOrientation * (M_PI / 1800.0); 101 102 // handle font stretching if any 103 const CGAffineTransform* pMatrix = NULL; 104 CGAffineTransform aMatrix; 105 if( (pReqFont->mnWidth != 0) && (pReqFont->mnWidth != pReqFont->mnHeight) ) 106 { 107 mfFontStretch = (float)pReqFont->mnWidth / pReqFont->mnHeight; 108 aMatrix = CGAffineTransformMakeScale( mfFontStretch, 1.0F ); 109 pMatrix = &aMatrix; 110 } 111 112 // create the style object for CoreText font attributes 113 static const CFIndex nMaxDictSize = 16; // TODO: does this really suffice? 114 mpStyleDict = CFDictionaryCreateMutable( NULL, nMaxDictSize, 115 &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks ); 116 117 // set some default styles: no kerning, regular ligatures 118 static const CGFloat fValZero = 0.0; 119 CFNumberRef pCFFloatNumZero = CFNumberCreate( NULL, kCFNumberFloatType, &fValZero ); 120 CFDictionarySetValue( mpStyleDict, kCTKernAttributeName, pCFFloatNumZero ); 121 CFRelease( pCFFloatNumZero); 122 static const int nValOne = 1; 123 CFNumberRef pCFIntNumOne = CFNumberCreate( NULL, kCFNumberIntType, &nValOne ); 124 CFDictionarySetValue( mpStyleDict, kCTLigatureAttributeName, pCFIntNumOne ); 125 CFRelease( pCFIntNumOne); 126 CFBooleanRef pCFVertBool = pReqFont->mbVertical ? kCFBooleanTrue : kCFBooleanFalse; 127 CFDictionarySetValue( mpStyleDict, kCTVerticalFormsAttributeName, pCFVertBool ); 128 129 CTFontDescriptorRef pFontDesc = (CTFontDescriptorRef)mpFontData->GetFontId(); 130 CTFontRef pNewCTFont = CTFontCreateWithFontDescriptor( pFontDesc, fScaledFontHeight, pMatrix ); 131 CFDictionarySetValue( mpStyleDict, kCTFontAttributeName, pNewCTFont ); 132 CFRelease( pNewCTFont); 133 134 #if 0 // LastResort is implicit in CoreText's font cascading 135 const void* aGFBDescriptors[] = { CTFontDescriptorCreateWithNameAndSize( CFSTR("LastResort"), 0) }; // TODO: use the full GFB list 136 const int nGfbCount = sizeof(aGFBDescriptors) / sizeof(*aGFBDescriptors); 137 CFArrayRef pGfbList = CFArrayCreate( NULL, aGFBDescriptors, nGfbCount, &kCFTypeArrayCallBacks); 138 CFDictionaryAddValue( mpStyleDict, kCTFontCascadeListAttribute, pGfbList); 139 CFRelease( pGfbList); 140 #endif 141 } 142 143 // ----------------------------------------------------------------------- 144 145 CTTextStyle::~CTTextStyle( void ) 146 { 147 if( mpStyleDict ) 148 CFRelease( mpStyleDict ); 149 } 150 151 // ----------------------------------------------------------------------- 152 153 void CTTextStyle::GetFontMetric( float fDPIY, ImplFontMetricData& rMetric ) const 154 { 155 // get the matching CoreText font handle 156 // TODO: is it worth it to cache the CTFontRef in SetFont() and reuse it here? 157 CTFontRef aCTFontRef = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName ); 158 159 const double fPixelSize = (mfFontScale * fDPIY); 160 rMetric.mnAscent = lrint( CTFontGetAscent( aCTFontRef ) * fPixelSize); 161 rMetric.mnDescent = lrint( CTFontGetDescent( aCTFontRef ) * fPixelSize); 162 rMetric.mnIntLeading = lrint( CTFontGetLeading( aCTFontRef ) * fPixelSize); 163 rMetric.mnExtLeading = 0; 164 // since ImplFontMetricData::mnWidth is only used for stretching/squeezing fonts 165 // setting this width to the pixel height of the fontsize is good enough 166 // it also makes the calculation of the stretch factor simple 167 rMetric.mnWidth = lrint( CTFontGetSize( aCTFontRef ) * fPixelSize * mfFontStretch); 168 169 // all CoreText fonts are scalable 170 rMetric.mbScalableFont = true; 171 // TODO: check if any kerning is supported 172 rMetric.mbKernableFont = true; 173 } 174 175 // ----------------------------------------------------------------------- 176 177 bool CTTextStyle::GetGlyphBoundRect( sal_GlyphId aGlyphId, Rectangle& rRect ) const 178 { 179 const DynCoreTextSyms& rCT = DynCoreTextSyms::get(); 180 CGGlyph nCGGlyph = aGlyphId & GF_IDXMASK; // NOTE: CoreText handles glyph fallback itself 181 CTFontRef aCTFontRef = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName ); 182 183 const CTFontOrientation aFontOrientation = kCTFontDefaultOrientation; // TODO: horz/vert 184 const CGRect aCGRect = rCT.FontGetBoundingRectsForGlyphs( aCTFontRef, aFontOrientation, &nCGGlyph, NULL, 1 ); 185 186 rRect.Left() = lrint( mfFontScale * aCGRect.origin.x ); 187 rRect.Top() = lrint( mfFontScale * aCGRect.origin.y ); 188 rRect.Right() = lrint( mfFontScale * (aCGRect.origin.x + aCGRect.size.width) ); 189 rRect.Bottom() = lrint( mfFontScale * (aCGRect.origin.y + aCGRect.size.height) ); 190 return true; 191 } 192 193 // ----------------------------------------------------------------------- 194 195 // callbacks from CTFontCreatePathForGlyph+CGPathApply for GetGlyphOutline() 196 struct GgoData { basegfx::B2DPolygon maPolygon; basegfx::B2DPolyPolygon* mpPolyPoly; }; 197 198 static void MyCGPathApplierFunc( void* pData, const CGPathElement* pElement ) 199 { 200 basegfx::B2DPolygon& rPolygon = static_cast<GgoData*>(pData)->maPolygon; 201 const int nPointCount = rPolygon.count(); 202 203 switch( pElement->type ) 204 { 205 case kCGPathElementCloseSubpath: 206 case kCGPathElementMoveToPoint: 207 if( nPointCount > 0 ) { 208 static_cast<GgoData*>(pData)->mpPolyPoly->append( rPolygon ); 209 rPolygon.clear(); 210 } 211 // fall through for kCGPathElementMoveToPoint: 212 if( pElement->type != kCGPathElementMoveToPoint ) 213 break; 214 case kCGPathElementAddLineToPoint: 215 rPolygon.append( basegfx::B2DPoint( +pElement->points[0].x, -pElement->points[0].y ) ); 216 break; 217 case kCGPathElementAddCurveToPoint: 218 rPolygon.append( basegfx::B2DPoint( +pElement->points[2].x, -pElement->points[2].y ) ); 219 rPolygon.setNextControlPoint( nPointCount-1, basegfx::B2DPoint( pElement->points[0].x, -pElement->points[0].y ) ); 220 rPolygon.setPrevControlPoint( nPointCount+0, basegfx::B2DPoint( pElement->points[1].x, -pElement->points[1].y ) ); 221 break; 222 case kCGPathElementAddQuadCurveToPoint: { 223 const basegfx::B2DPoint aStartPt = rPolygon.getB2DPoint( nPointCount-1 ); 224 const basegfx::B2DPoint aCtrPt1( (aStartPt.getX() + 2* pElement->points[0].x) / 3.0, 225 (aStartPt.getY() - 2 * pElement->points[0].y) / 3.0 ); 226 const basegfx::B2DPoint aCtrPt2( (+2 * +pElement->points[0].x + pElement->points[1].x) / 3.0, 227 (-2 * pElement->points[0].y - pElement->points[1].y) / 3.0 ); 228 rPolygon.append( basegfx::B2DPoint( +pElement->points[1].x, -pElement->points[1].y ) ); 229 rPolygon.setNextControlPoint( nPointCount-1, aCtrPt1 ); 230 rPolygon.setPrevControlPoint( nPointCount+0, aCtrPt2 ); 231 } break; 232 } 233 } 234 235 bool CTTextStyle::GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolygon& rResult ) const 236 { 237 rResult.clear(); 238 239 const DynCoreTextSyms& rCT = DynCoreTextSyms::get(); 240 // TODO: GF_FONTMASK if using non-native glyph fallback 241 CGGlyph nCGGlyph = aGlyphId & GF_IDXMASK; 242 CTFontRef pCTFont = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName ); 243 CGPathRef xPath = rCT.FontCreatePathForGlyph( pCTFont, nCGGlyph, NULL ); 244 245 GgoData aGgoData; 246 aGgoData.mpPolyPoly = &rResult; 247 CGPathApply( xPath, (void*)&aGgoData, MyCGPathApplierFunc ); 248 #if 0 // TODO: does OSX ensure that the last polygon is always closed? 249 const CGPathElement aClosingElement = { kCGPathElementCloseSubpath, NULL }; 250 MyCGPathApplierFunc( (void*)&aGgoData, &aClosingElement ); 251 #endif 252 253 // apply the font scale 254 if( mfFontScale != 1.0 ) { 255 basegfx::B2DHomMatrix aScale; 256 aScale.scale( +mfFontScale, +mfFontScale ); 257 rResult.transform( aScale ); 258 } 259 260 return true; 261 } 262 263 // ----------------------------------------------------------------------- 264 265 void CTTextStyle::SetTextColor( const RGBAColor& rColor ) 266 { 267 #if (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5) 268 CGColorRef pCGColor = CGColorCreateGenericRGB( rColor.GetRed(), 269 rColor.GetGreen(), rColor.GetBlue(), rColor.GetAlpha() ); 270 #else // for builds on OSX 10.4 SDK 271 const CGColorSpaceRef pCGColorSpace = GetSalData()->mxRGBSpace; 272 CGColorRef pCGColor = CGColorCreate( pCGColorSpace, rColor.AsArray() ); 273 #endif 274 CFDictionarySetValue( mpStyleDict, kCTForegroundColorAttributeName, pCGColor ); 275 CFRelease( pCGColor); 276 } 277 278 // ======================================================================= 279 280 CTFontData::CTFontData( const ImplDevFontAttributes& rDFA, sal_IntPtr nFontId ) 281 : ImplMacFontData( rDFA, nFontId ) 282 {} 283 284 // ----------------------------------------------------------------------- 285 286 CTFontData::~CTFontData( void ) 287 { 288 // TODO: any resources to release? 289 } 290 291 // ----------------------------------------------------------------------- 292 293 ImplFontData* CTFontData::Clone( void ) const 294 { 295 return new CTFontData( *this); 296 } 297 298 // ----------------------------------------------------------------------- 299 300 ImplMacTextStyle* CTFontData::CreateMacTextStyle( const ImplFontSelectData& rFSD ) const 301 { 302 return new CTTextStyle( rFSD); 303 } 304 305 // ----------------------------------------------------------------------- 306 307 ImplFontEntry* CTFontData::CreateFontInstance( /*const*/ ImplFontSelectData& rFSD ) const 308 { 309 return new ImplFontEntry( rFSD); 310 } 311 312 // ----------------------------------------------------------------------- 313 314 int CTFontData::GetFontTable( const char pTagName[5], unsigned char* pResultBuf ) const 315 { 316 DBG_ASSERT( pTagName[4]=='\0', "CTFontData::GetFontTable with invalid tagname!\n" ); 317 318 const CTFontTableTag nTagCode = (pTagName[0]<<24) + (pTagName[1]<<16) + (pTagName[2]<<8) + (pTagName[3]<<0); 319 320 // get the raw table length 321 CTFontDescriptorRef pFontDesc = reinterpret_cast<CTFontDescriptorRef>( GetFontId()); 322 CTFontRef rCTFont = CTFontCreateWithFontDescriptor( pFontDesc, 0.0, NULL); 323 CFDataRef pDataRef = CTFontCopyTable( rCTFont, nTagCode, kCTFontTableOptionExcludeSynthetic); 324 CFRelease( rCTFont); 325 if( !pDataRef) 326 return 0; 327 328 const CFIndex nByteLength = CFDataGetLength( pDataRef); 329 330 // get the raw table data if requested 331 if( pResultBuf && (nByteLength > 0)) 332 { 333 const CFRange aFullRange = CFRangeMake( 0, nByteLength); 334 CFDataGetBytes( pDataRef, aFullRange, (UInt8*)pResultBuf); 335 } 336 337 CFRelease( pDataRef); 338 339 return (int)nByteLength; 340 } 341 342 // ======================================================================= 343 344 static void CTFontEnumCallBack( const void* pValue, void* pContext ) 345 { 346 CTFontDescriptorRef pFD = static_cast<CTFontDescriptorRef>(pValue); 347 348 // all CoreText fonts are device fonts that can rotate just fine 349 ImplDevFontAttributes rDFA; 350 rDFA.mbOrientation = true; 351 rDFA.mbDevice = true; 352 rDFA.mnQuality = 0; 353 354 // reset the font attributes 355 rDFA.meFamily = FAMILY_DONTKNOW; 356 rDFA.mePitch = PITCH_VARIABLE; 357 rDFA.meWidthType = WIDTH_NORMAL; 358 rDFA.meWeight = WEIGHT_NORMAL; 359 rDFA.meItalic = ITALIC_NONE; 360 rDFA.mbSymbolFlag = false; 361 362 // all scalable fonts on this platform are subsettable 363 rDFA.mbEmbeddable = false; 364 rDFA.mbSubsettable = true; 365 366 // get font name 367 // TODO: use kCTFontDisplayNameAttribute instead??? 368 CFStringRef pFamilyName = (CFStringRef)CTFontDescriptorCopyAttribute( pFD, kCTFontFamilyNameAttribute ); 369 rDFA.maName = GetOUString( pFamilyName ); 370 // get font style 371 CFStringRef pStyleName = (CFStringRef)CTFontDescriptorCopyAttribute( pFD, kCTFontStyleNameAttribute ); 372 rDFA.maStyleName = GetOUString( pStyleName ); 373 374 // get font-enabled status 375 int bFontEnabled = FALSE; 376 CFNumberRef pFontEnabled = (CFNumberRef)CTFontDescriptorCopyAttribute( pFD, kCTFontEnabledAttribute ); 377 CFNumberGetValue( pFontEnabled, kCFNumberIntType, &bFontEnabled ); 378 379 // get font attributes 380 CFDictionaryRef pAttrDict = (CFDictionaryRef)CTFontDescriptorCopyAttribute( pFD, kCTFontTraitsAttribute ); 381 382 // get symbolic trait 383 // TODO: use other traits such as MonoSpace/Condensed/Expanded or Vertical too 384 SInt64 nSymbolTrait = 0; 385 CFNumberRef pSymbolNum = NULL; 386 if( CFDictionaryGetValueIfPresent( pAttrDict, kCTFontSymbolicTrait, (const void**)&pSymbolNum ) ) { 387 CFNumberGetValue( pSymbolNum, kCFNumberSInt64Type, &nSymbolTrait ); 388 rDFA.mbSymbolFlag = ((nSymbolTrait & kCTFontClassMaskTrait) == kCTFontSymbolicClass); 389 } 390 391 // get the font weight 392 double fWeight = 0; 393 CFNumberRef pWeightNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontWeightTrait ); 394 CFNumberGetValue( pWeightNum, kCFNumberDoubleType, &fWeight ); 395 int nInt = WEIGHT_NORMAL; 396 if( fWeight > 0 ) { 397 nInt = rint(WEIGHT_NORMAL + fWeight * ((WEIGHT_BLACK - WEIGHT_NORMAL)/0.68)); 398 if( nInt > WEIGHT_BLACK ) 399 nInt = WEIGHT_BLACK; 400 } else if( fWeight < 0 ) { 401 nInt = rint(WEIGHT_NORMAL + fWeight * ((WEIGHT_NORMAL - WEIGHT_THIN)/0.9)); 402 if( nInt < WEIGHT_THIN ) 403 nInt = WEIGHT_THIN; 404 } 405 rDFA.meWeight = (FontWeight)nInt; 406 407 // get the font slant 408 double fSlant = 0; 409 CFNumberRef pSlantNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontSlantTrait ); 410 CFNumberGetValue( pSlantNum, kCFNumberDoubleType, &fSlant ); 411 if( fSlant >= 0.035 ) 412 rDFA.meItalic = ITALIC_NORMAL; 413 414 // get width trait 415 double fWidth = 0; 416 CFNumberRef pWidthNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontWidthTrait ); 417 CFNumberGetValue( pWidthNum, kCFNumberDoubleType, &fWidth ); 418 nInt = WIDTH_NORMAL; 419 if( fWidth > 0 ) { 420 nInt = rint( WIDTH_NORMAL + fWidth * ((WIDTH_ULTRA_EXPANDED - WIDTH_NORMAL)/0.4)); 421 if( nInt > WIDTH_ULTRA_EXPANDED ) 422 nInt = WIDTH_ULTRA_EXPANDED; 423 } else if( fWidth < 0 ) { 424 nInt = rint( WIDTH_NORMAL + fWidth * ((WIDTH_NORMAL - WIDTH_ULTRA_CONDENSED)/0.5)); 425 if( nInt < WIDTH_ULTRA_CONDENSED ) 426 nInt = WIDTH_ULTRA_CONDENSED; 427 } 428 rDFA.meWidthType = (FontWidth)nInt; 429 430 // release the attribute dict that we had copied 431 CFRelease( pAttrDict ); 432 433 // TODO? also use the HEAD table if available to get more attributes 434 // CFDataRef CTFontCopyTable( CTFontRef, kCTFontTableHead, /*kCTFontTableOptionNoOptions*/kCTFontTableOptionExcludeSynthetic ); 435 436 #if (OSL_DEBUG_LEVEL >= 1) 437 // update font attributes using the font's postscript name 438 ImplDevFontAttributes rDFA2; 439 CTFontRef pFont = CTFontCreateWithFontDescriptor( pFD, 0.0, NULL ); 440 CFStringRef pPSName = CTFontCopyPostScriptName( pFont ); 441 const String aPSName = GetOUString( pPSName ); 442 443 rDFA2.mbSymbolFlag = false; 444 rDFA2.mePitch = PITCH_VARIABLE; 445 rDFA2.meWidthType = WIDTH_NORMAL; 446 rDFA2.meWeight = WEIGHT_NORMAL; 447 rDFA2.meItalic = ITALIC_NONE; 448 449 UpdateAttributesFromPSName( aPSName, rDFA2 ); 450 CFRelease( pPSName ); 451 CFRelease( pFont ); 452 453 // show the font details and compare the CTFontDescriptor vs. PSName traits 454 char cMatch = (rDFA.mbSymbolFlag==rDFA2.mbSymbolFlag); 455 cMatch &= (rDFA.meWeight==rDFA2.meWeight); 456 cMatch &= ((rDFA.meItalic==ITALIC_NONE) == (rDFA2.meItalic==ITALIC_NONE)); 457 cMatch &= (rDFA.meWidthType==rDFA2.meWidthType); 458 cMatch = cMatch ? '.' : '#'; 459 460 char aFN[256], aSN[256]; 461 CFStringGetCString( pFamilyName, aFN, sizeof(aFN), kCFStringEncodingUTF8 ); 462 CFStringGetCString( pStyleName, aSN, sizeof(aSN), kCFStringEncodingUTF8 ); 463 464 const ByteString aPSCName( aPSName, RTL_TEXTENCODING_UTF8 ); 465 const char* aPN = aPSCName.GetBuffer(); 466 printf("\tCTFont_%d%x%d%d_%c_%d%x%d%d ena=%d s=%02d b=%+.2f i=%+.2f w=%+.2f (\"%s\", \"%s\", \"%s\")\n", 467 (int)rDFA.mbSymbolFlag,(int)rDFA.meWeight,(int)rDFA.meItalic,(int)rDFA.meWidthType, 468 cMatch, 469 (int)rDFA2.mbSymbolFlag,(int)rDFA2.meWeight,(int)rDFA2.meItalic,(int)rDFA2.meWidthType, 470 bFontEnabled, 471 (int)(nSymbolTrait>>kCTFontClassMaskShift),fWeight,fSlant,fWidth,aFN,aSN,aPN); 472 #endif // (OSL_DEBUG_LEVEL >= 1) 473 474 if( bFontEnabled) 475 { 476 const sal_IntPtr nFontId = (sal_IntPtr)pValue; 477 CTFontData* pFontData = new CTFontData( rDFA, nFontId ); 478 CTFontList* pFontList = (CTFontList*)pContext; 479 pFontList->AddFont( pFontData ); 480 } 481 } 482 483 // ======================================================================= 484 485 CTFontList::CTFontList() 486 : mpCTFontCollection( NULL ) 487 , mpCTFontArray( NULL ) 488 {} 489 490 // ----------------------------------------------------------------------- 491 492 CTFontList::~CTFontList() 493 { 494 CTFontContainer::const_iterator it = maFontContainer.begin(); 495 for(; it != maFontContainer.end(); ++it ) 496 delete (*it).second; 497 maFontContainer.clear(); 498 499 if( mpCTFontArray ) 500 CFRelease( mpCTFontArray ); 501 if( mpCTFontCollection ) 502 CFRelease( mpCTFontCollection ); 503 } 504 505 // ----------------------------------------------------------------------- 506 507 void CTFontList::AddFont( CTFontData* pFontData ) 508 { 509 sal_IntPtr nFontId = pFontData->GetFontId(); 510 maFontContainer[ nFontId ] = pFontData; 511 } 512 513 // ----------------------------------------------------------------------- 514 515 void CTFontList::AnnounceFonts( ImplDevFontList& rFontList ) const 516 { 517 CTFontContainer::const_iterator it = maFontContainer.begin(); 518 for(; it != maFontContainer.end(); ++it ) 519 rFontList.Add( (*it).second->Clone() ); 520 } 521 522 // ----------------------------------------------------------------------- 523 524 ImplMacFontData* CTFontList::GetFontDataFromId( sal_IntPtr nFontId ) const 525 { 526 CTFontContainer::const_iterator it = maFontContainer.find( nFontId ); 527 if( it == maFontContainer.end() ) 528 return NULL; 529 return (*it).second; 530 } 531 532 // ----------------------------------------------------------------------- 533 534 bool CTFontList::Init( void ) 535 { 536 #ifndef DISABLE_CORETEXT_DYNLOAD 537 // check availability of the CoreText API 538 const DynCoreTextSyms& rCT = DynCoreTextSyms::get(); 539 if( !rCT.IsActive() ) 540 return false; 541 #endif // DISABLE_CORETEXT_DYNLOAD 542 543 // enumerate available system fonts 544 static const int nMaxDictEntries = 8; 545 CFMutableDictionaryRef pCFDict = CFDictionaryCreateMutable( NULL, 546 nMaxDictEntries, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks ); 547 CFDictionaryAddValue( pCFDict, kCTFontCollectionRemoveDuplicatesOption, kCFBooleanTrue ); 548 mpCTFontCollection = rCT.FontCollectionCreateFromAvailableFonts( pCFDict ); 549 CFRelease( pCFDict ); 550 551 mpCTFontArray = rCT.FontCollectionCreateMatchingFontDescriptors( mpCTFontCollection ); 552 const int nFontCount = CFArrayGetCount( mpCTFontArray ); 553 const CFRange aFullRange = CFRangeMake( 0, nFontCount ); 554 CFArrayApplyFunction( mpCTFontArray, aFullRange, CTFontEnumCallBack, this ); 555 556 return true; 557 } 558 559 // ======================================================================= 560 561 #ifndef DISABLE_CORETEXT_DYNLOAD 562 563 DynCoreTextSyms::DynCoreTextSyms( void ) 564 { 565 mbIsActive = false; 566 567 // check if CoreText has been explicitely disabled 568 const char* pEnvStr = getenv( "SAL_DISABLE_CORETEXT"); 569 if( pEnvStr && (pEnvStr[0] != '0') ) 570 return; 571 572 // check CoreText version 573 GetCoreTextVersion = (uint32_t(*)(void))dlsym( RTLD_DEFAULT, "CTGetCoreTextVersion"); 574 if( !GetCoreTextVersion) return; 575 576 const uint32_t nCTVersion = GetCoreTextVersion(); 577 static const uint32_t mykCTVersionNumber10_5 = 0x00020000; 578 if( nCTVersion < mykCTVersionNumber10_5) 579 return; 580 581 // load CoreText symbols dynamically 582 LineGetTrailingWhitespaceWidth = (double(*)(CTLineRef))dlsym( RTLD_DEFAULT, "CTLineGetTrailingWhitespaceWidth"); 583 if( !LineGetTrailingWhitespaceWidth) return; 584 585 LineCreateJustifiedLine = (CTLineRef(*)(CTLineRef,CGFloat,double))dlsym( RTLD_DEFAULT, "CTLineCreateJustifiedLine"); 586 if( !LineCreateJustifiedLine) return; 587 588 LineGetOffsetForStringIndex = (CGFloat(*)(CTLineRef,CFIndex,CGFloat*))dlsym( RTLD_DEFAULT, "CTLineGetOffsetForStringIndex"); 589 if( !LineGetOffsetForStringIndex) return; 590 591 LineGetGlyphRuns = (CFArrayRef(*)(CTLineRef))dlsym( RTLD_DEFAULT, "CTLineGetGlyphRuns"); 592 if( !LineGetGlyphRuns) return; 593 594 RunGetGlyphCount = (CFIndex(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetGlyphCount"); 595 if( !RunGetGlyphCount) return; 596 597 RunGetGlyphsPtr = (const CGGlyph*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetGlyphsPtr"); 598 if( !RunGetGlyphsPtr) return; 599 600 RunGetPositionsPtr = (const CGPoint*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetPositionsPtr"); 601 if( !RunGetPositionsPtr) return; 602 603 RunGetAdvancesPtr = (const CGSize*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetAdvancesPtr"); 604 if( !RunGetAdvancesPtr) return; 605 606 RunGetStringIndicesPtr = (const CFIndex*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetStringIndicesPtr"); 607 if( !RunGetStringIndicesPtr) return; 608 609 FontCollectionCreateFromAvailableFonts = (CTFontCollectionRef(*)(CFDictionaryRef))dlsym( RTLD_DEFAULT, "CTFontCollectionCreateFromAvailableFonts"); 610 if( !FontCollectionCreateFromAvailableFonts) return; 611 612 FontCollectionCreateMatchingFontDescriptors = (CFArrayRef(*)(CTFontCollectionRef))dlsym( RTLD_DEFAULT, "CTFontCollectionCreateMatchingFontDescriptors"); 613 if( !FontCollectionCreateMatchingFontDescriptors) return; 614 615 FontCreatePathForGlyph = (CGPathRef(*)(CTFontRef,CGGlyph,const CGAffineTransform*))dlsym( RTLD_DEFAULT, "CTFontCreatePathForGlyph"); 616 if( !FontCreatePathForGlyph) return; 617 618 FontGetBoundingRectsForGlyphs = (CGRect(*)(CTFontRef,CTFontOrientation,CGGlyph*,CGRect*,CFIndex))dlsym( RTLD_DEFAULT, "CTFontGetBoundingRectsForGlyphs"); 619 if( !FontGetBoundingRectsForGlyphs) return; 620 621 mbIsActive = true; 622 } 623 624 // ----------------------------------------------------------------------- 625 626 const DynCoreTextSyms& DynCoreTextSyms::get( void ) 627 { 628 static DynCoreTextSyms aCT; 629 return aCT; 630 } 631 632 #endif // DISABLE_CORETEXT_DYNLOAD 633 634 // ======================================================================= 635 636 SystemFontList* GetCoretextFontList( void ) 637 { 638 CTFontList* pList = new CTFontList(); 639 if( !pList->Init() ) { 640 delete pList; 641 return NULL; 642 } 643 644 return pList; 645 } 646 647 // ======================================================================= 648 649