xref: /trunk/main/vcl/aqua/source/gdi/ctfonts.cxx (revision eb7664d6c5c9be8a69ece33db9cd896580c512b8)
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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     // handle emulation of italic/oblique styles if requested and the font doesn't provide them
113     if( ((pReqFont->meItalic == ITALIC_NORMAL) || (pReqFont->meItalic == ITALIC_OBLIQUE))
114     && (mpFontData->meItalic == ITALIC_NONE))
115     {
116         if( !pMatrix)
117             pMatrix = &(aMatrix = CGAffineTransformIdentity);
118         aMatrix = CGAffineTransformConcat(aMatrix, CGAffineTransformMake( 1, 0, 0.375F, 1, 0, 0));
119     }
120 
121     // create the style object for CoreText font attributes
122     static const CFIndex nMaxDictSize = 16; // TODO: does this really suffice?
123     mpStyleDict = CFDictionaryCreateMutable( NULL, nMaxDictSize,
124         &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks );
125 
126     // set some default styles: no kerning, regular ligatures
127     static const CGFloat fValZero = 0.0;
128     CFNumberRef pCFFloatNumZero = CFNumberCreate( NULL, kCFNumberFloatType, &fValZero );
129     CFDictionarySetValue( mpStyleDict, kCTKernAttributeName, pCFFloatNumZero );
130     CFRelease( pCFFloatNumZero);
131     static const int nValOne = 1;
132     CFNumberRef pCFIntNumOne = CFNumberCreate( NULL, kCFNumberIntType, &nValOne );
133     CFDictionarySetValue( mpStyleDict, kCTLigatureAttributeName, pCFIntNumOne );
134     CFRelease( pCFIntNumOne);
135     CFBooleanRef pCFVertBool = pReqFont->mbVertical ? kCFBooleanTrue : kCFBooleanFalse;
136     CFDictionarySetValue( mpStyleDict, kCTVerticalFormsAttributeName, pCFVertBool );
137 
138     CTFontDescriptorRef pFontDesc = (CTFontDescriptorRef)mpFontData->GetFontId();
139     CTFontRef pNewCTFont = CTFontCreateWithFontDescriptor( pFontDesc, fScaledFontHeight, pMatrix );
140     CFDictionarySetValue( mpStyleDict, kCTFontAttributeName, pNewCTFont );
141     CFRelease( pNewCTFont);
142 
143     // handle emulation of bold styles if requested and the font that doesn't provide them
144     if( (pReqFont->meWeight > WEIGHT_MEDIUM)
145     &&  (mpFontData->meWeight <= WEIGHT_MEDIUM)
146     &&  (mpFontData->meWeight != WEIGHT_DONTKNOW))
147     {
148         const int nBoldFactor = -lrint( (3.5F * pReqFont->meWeight) / mpFontData->meWeight);
149         CFNumberRef pCFIntBold = CFNumberCreate( NULL, kCFNumberIntType, &nBoldFactor);
150         CFDictionarySetValue( mpStyleDict, kCTStrokeWidthAttributeName, pCFIntBold);
151     }
152 
153 #if 0 // LastResort is implicit in CoreText's font cascading
154     const void* aGFBDescriptors[] = { CTFontDescriptorCreateWithNameAndSize( CFSTR("LastResort"), 0) }; // TODO: use the full GFB list
155     const int nGfbCount = sizeof(aGFBDescriptors) / sizeof(*aGFBDescriptors);
156     CFArrayRef pGfbList = CFArrayCreate( NULL, aGFBDescriptors, nGfbCount, &kCFTypeArrayCallBacks);
157     CFDictionaryAddValue( mpStyleDict, kCTFontCascadeListAttribute, pGfbList);
158     CFRelease( pGfbList);
159 #endif
160 }
161 
162 // -----------------------------------------------------------------------
163 
164 CTTextStyle::~CTTextStyle( void )
165 {
166     if( mpStyleDict )
167         CFRelease( mpStyleDict );
168 }
169 
170 // -----------------------------------------------------------------------
171 
172 void CTTextStyle::GetFontMetric( float fDPIY, ImplFontMetricData& rMetric ) const
173 {
174     // get the matching CoreText font handle
175     // TODO: is it worth it to cache the CTFontRef in SetFont() and reuse it here?
176     CTFontRef aCTFontRef = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName );
177 
178     const double fPixelSize = (mfFontScale * fDPIY);
179     const CGFloat fAscent = CTFontGetAscent( aCTFontRef );
180     const CGFloat fCapHeight = CTFontGetCapHeight( aCTFontRef );
181     rMetric.mnAscent       = lrint( fAscent * fPixelSize);
182     rMetric.mnDescent      = lrint( CTFontGetDescent( aCTFontRef ) * fPixelSize);
183     rMetric.mnExtLeading   = lrint( CTFontGetLeading( aCTFontRef ) * fPixelSize);
184     rMetric.mnIntLeading   = lrint( (fAscent - fCapHeight) * fPixelSize);
185 
186     // since ImplFontMetricData::mnWidth is only used for stretching/squeezing fonts
187     // setting this width to the pixel height of the fontsize is good enough
188     // it also makes the calculation of the stretch factor simple
189     rMetric.mnWidth        = lrint( CTFontGetSize( aCTFontRef ) * fPixelSize * mfFontStretch);
190 
191     // all CoreText fonts are scalable
192     rMetric.mbScalableFont = true;
193     // TODO: check if any kerning is supported
194     rMetric.mbKernableFont = true;
195 }
196 
197 // -----------------------------------------------------------------------
198 
199 bool CTTextStyle::GetGlyphBoundRect( sal_GlyphId aGlyphId, Rectangle& rRect ) const
200 {
201     const DynCoreTextSyms& rCT = DynCoreTextSyms::get();
202     CGGlyph nCGGlyph = aGlyphId & GF_IDXMASK; // NOTE: CoreText handles glyph fallback itself
203     CTFontRef aCTFontRef = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName );
204 
205     const CTFontOrientation aFontOrientation = kCTFontDefaultOrientation; // TODO: horz/vert
206     const CGRect aCGRect = rCT.FontGetBoundingRectsForGlyphs( aCTFontRef, aFontOrientation, &nCGGlyph, NULL, 1 );
207 
208     rRect.Left()   = lrint( mfFontScale * aCGRect.origin.x );
209     rRect.Top()    = lrint( mfFontScale * aCGRect.origin.y );
210     rRect.Right()  = lrint( mfFontScale * (aCGRect.origin.x + aCGRect.size.width) );
211     rRect.Bottom() = lrint( mfFontScale * (aCGRect.origin.y + aCGRect.size.height) );
212     return true;
213 }
214 
215 // -----------------------------------------------------------------------
216 
217 // callbacks from CTFontCreatePathForGlyph+CGPathApply for GetGlyphOutline()
218 struct GgoData { basegfx::B2DPolygon maPolygon; basegfx::B2DPolyPolygon* mpPolyPoly; };
219 
220 static void MyCGPathApplierFunc( void* pData, const CGPathElement* pElement )
221 {
222     basegfx::B2DPolygon& rPolygon = static_cast<GgoData*>(pData)->maPolygon;
223     const int nPointCount = rPolygon.count();
224 
225     switch( pElement->type )
226     {
227     case kCGPathElementCloseSubpath:
228     case kCGPathElementMoveToPoint:
229         if( nPointCount > 0 ) {
230             static_cast<GgoData*>(pData)->mpPolyPoly->append( rPolygon );
231             rPolygon.clear();
232         }
233         // fall through for kCGPathElementMoveToPoint:
234         if( pElement->type != kCGPathElementMoveToPoint )
235             break;
236     case kCGPathElementAddLineToPoint:
237         rPolygon.append( basegfx::B2DPoint( +pElement->points[0].x, -pElement->points[0].y ) );
238         break;
239     case kCGPathElementAddCurveToPoint:
240         rPolygon.append( basegfx::B2DPoint( +pElement->points[2].x, -pElement->points[2].y ) );
241         rPolygon.setNextControlPoint( nPointCount-1, basegfx::B2DPoint( pElement->points[0].x, -pElement->points[0].y ) );
242         rPolygon.setPrevControlPoint( nPointCount+0, basegfx::B2DPoint( pElement->points[1].x, -pElement->points[1].y ) );
243         break;
244     case kCGPathElementAddQuadCurveToPoint: {
245         const basegfx::B2DPoint aStartPt = rPolygon.getB2DPoint( nPointCount-1 );
246         const basegfx::B2DPoint aCtrPt1( (aStartPt.getX() + 2* pElement->points[0].x) / 3.0,
247                     (aStartPt.getY() - 2 * pElement->points[0].y) / 3.0 );
248         const basegfx::B2DPoint aCtrPt2( (+2 * +pElement->points[0].x + pElement->points[1].x) / 3.0,
249                 (-2 * pElement->points[0].y - pElement->points[1].y) / 3.0 );
250         rPolygon.append( basegfx::B2DPoint( +pElement->points[1].x, -pElement->points[1].y ) );
251         rPolygon.setNextControlPoint( nPointCount-1, aCtrPt1 );
252         rPolygon.setPrevControlPoint( nPointCount+0, aCtrPt2 );
253         } break;
254     }
255 }
256 
257 bool CTTextStyle::GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolygon& rResult ) const
258 {
259     rResult.clear();
260 
261     const DynCoreTextSyms& rCT = DynCoreTextSyms::get();
262     // TODO: GF_FONTMASK if using non-native glyph fallback
263     CGGlyph nCGGlyph = aGlyphId & GF_IDXMASK;
264     CTFontRef pCTFont = (CTFontRef)CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName );
265     CGPathRef xPath = rCT.FontCreatePathForGlyph( pCTFont, nCGGlyph, NULL );
266 
267     GgoData aGgoData;
268     aGgoData.mpPolyPoly = &rResult;
269     CGPathApply( xPath, (void*)&aGgoData, MyCGPathApplierFunc );
270 #if 0 // TODO: does OSX ensure that the last polygon is always closed?
271     const CGPathElement aClosingElement = { kCGPathElementCloseSubpath, NULL };
272     MyCGPathApplierFunc( (void*)&aGgoData, &aClosingElement );
273 #endif
274 
275     // apply the font scale
276     if( mfFontScale != 1.0 ) {
277         basegfx::B2DHomMatrix aScale;
278         aScale.scale( +mfFontScale, +mfFontScale );
279         rResult.transform( aScale );
280     }
281 
282     return true;
283 }
284 
285 // -----------------------------------------------------------------------
286 
287 void CTTextStyle::SetTextColor( const RGBAColor& rColor )
288 {
289 #if (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
290     CGColorRef pCGColor = CGColorCreateGenericRGB( rColor.GetRed(),
291         rColor.GetGreen(), rColor.GetBlue(), rColor.GetAlpha() );
292 #else // for builds on OSX 10.4 SDK
293     const CGColorSpaceRef pCGColorSpace = GetSalData()->mxRGBSpace;
294     CGColorRef pCGColor = CGColorCreate( pCGColorSpace, rColor.AsArray() );
295 #endif
296     CFDictionarySetValue( mpStyleDict, kCTForegroundColorAttributeName, pCGColor );
297     CFRelease( pCGColor);
298 }
299 
300 // =======================================================================
301 
302 CTFontData::CTFontData( const ImplDevFontAttributes& rDFA, sal_IntPtr nFontId )
303 :   ImplMacFontData( rDFA, nFontId )
304 {}
305 
306 // -----------------------------------------------------------------------
307 
308 CTFontData::~CTFontData( void )
309 {
310     // TODO: any resources to release?
311 }
312 
313 // -----------------------------------------------------------------------
314 
315 ImplFontData* CTFontData::Clone( void ) const
316 {
317     return new CTFontData( *this);
318 }
319 
320 // -----------------------------------------------------------------------
321 
322 ImplMacTextStyle* CTFontData::CreateMacTextStyle( const ImplFontSelectData& rFSD ) const
323 {
324     return new CTTextStyle( rFSD);
325 }
326 
327 // -----------------------------------------------------------------------
328 
329 ImplFontEntry* CTFontData::CreateFontInstance( /*const*/ ImplFontSelectData& rFSD ) const
330 {
331     return new ImplFontEntry( rFSD);
332 }
333 
334 // -----------------------------------------------------------------------
335 
336 int CTFontData::GetFontTable( const char pTagName[5], unsigned char* pResultBuf ) const
337 {
338     DBG_ASSERT( pTagName[4]=='\0', "CTFontData::GetFontTable with invalid tagname!\n" );
339 
340     const CTFontTableTag nTagCode = (pTagName[0]<<24) + (pTagName[1]<<16) + (pTagName[2]<<8) + (pTagName[3]<<0);
341 
342     // get the raw table length
343     CTFontDescriptorRef pFontDesc = reinterpret_cast<CTFontDescriptorRef>( GetFontId());
344     CTFontRef rCTFont = CTFontCreateWithFontDescriptor( pFontDesc, 0.0, NULL);
345     CFDataRef pDataRef = CTFontCopyTable( rCTFont, nTagCode, kCTFontTableOptionExcludeSynthetic);
346     CFRelease( rCTFont);
347     if( !pDataRef)
348         return 0;
349 
350     const CFIndex nByteLength = CFDataGetLength( pDataRef);
351 
352     // get the raw table data if requested
353     if( pResultBuf && (nByteLength > 0))
354     {
355         const CFRange aFullRange = CFRangeMake( 0, nByteLength);
356         CFDataGetBytes( pDataRef, aFullRange, (UInt8*)pResultBuf);
357     }
358 
359     CFRelease( pDataRef);
360 
361     return (int)nByteLength;
362 }
363 
364 // =======================================================================
365 
366 static void CTFontEnumCallBack( const void* pValue, void* pContext )
367 {
368     CTFontDescriptorRef pFD = static_cast<CTFontDescriptorRef>(pValue);
369 
370     // all CoreText fonts are device fonts that can rotate just fine
371     ImplDevFontAttributes rDFA;
372     rDFA.mbOrientation = true;
373     rDFA.mbDevice      = true;
374     rDFA.mnQuality     = 0;
375 
376     // reset the font attributes
377     rDFA.meFamily     = FAMILY_DONTKNOW;
378     rDFA.mePitch      = PITCH_VARIABLE;
379     rDFA.meWidthType  = WIDTH_NORMAL;
380     rDFA.meWeight     = WEIGHT_NORMAL;
381     rDFA.meItalic     = ITALIC_NONE;
382     rDFA.mbSymbolFlag = false;
383 
384     // all scalable fonts on this platform are subsettable
385     rDFA.mbEmbeddable = false;
386     rDFA.mbSubsettable = true;
387 
388     // get font name
389     // TODO: use kCTFontDisplayNameAttribute instead???
390     CFStringRef pFamilyName = (CFStringRef)CTFontDescriptorCopyAttribute( pFD, kCTFontFamilyNameAttribute );
391     rDFA.maName = GetOUString( pFamilyName );
392     // get font style
393     CFStringRef pStyleName = (CFStringRef)CTFontDescriptorCopyAttribute( pFD, kCTFontStyleNameAttribute );
394     rDFA.maStyleName = GetOUString( pStyleName );
395 
396     // get font-enabled status
397     int bFontEnabled = FALSE;
398     CFNumberRef pFontEnabled = (CFNumberRef)CTFontDescriptorCopyAttribute( pFD, kCTFontEnabledAttribute );
399     CFNumberGetValue( pFontEnabled, kCFNumberIntType, &bFontEnabled );
400 
401     // get font attributes
402     CFDictionaryRef pAttrDict = (CFDictionaryRef)CTFontDescriptorCopyAttribute( pFD, kCTFontTraitsAttribute );
403 
404     // get symbolic trait
405     // TODO: use other traits such as MonoSpace/Condensed/Expanded or Vertical too
406     SInt64 nSymbolTrait = 0;
407     CFNumberRef pSymbolNum = NULL;
408     if( CFDictionaryGetValueIfPresent( pAttrDict, kCTFontSymbolicTrait, (const void**)&pSymbolNum ) ) {
409         CFNumberGetValue( pSymbolNum, kCFNumberSInt64Type, &nSymbolTrait );
410         rDFA.mbSymbolFlag = ((nSymbolTrait & kCTFontClassMaskTrait) == kCTFontSymbolicClass);
411     }
412 
413     // get the font weight
414     double fWeight = 0;
415     CFNumberRef pWeightNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontWeightTrait );
416     CFNumberGetValue( pWeightNum, kCFNumberDoubleType, &fWeight );
417     int nInt = WEIGHT_NORMAL;
418     if( fWeight > 0 ) {
419         nInt = rint(WEIGHT_NORMAL + fWeight * ((WEIGHT_BLACK - WEIGHT_NORMAL)/0.68));
420         if( nInt > WEIGHT_BLACK )
421             nInt = WEIGHT_BLACK;
422     } else if( fWeight < 0 ) {
423         nInt = rint(WEIGHT_NORMAL + fWeight * ((WEIGHT_NORMAL - WEIGHT_THIN)/0.9));
424         if( nInt < WEIGHT_THIN )
425             nInt = WEIGHT_THIN;
426     }
427     rDFA.meWeight = (FontWeight)nInt;
428 
429     // get the font slant
430     double fSlant = 0;
431     CFNumberRef pSlantNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontSlantTrait );
432     CFNumberGetValue( pSlantNum, kCFNumberDoubleType, &fSlant );
433     if( fSlant >= 0.035 )
434         rDFA.meItalic = ITALIC_NORMAL;
435 
436     // get width trait
437     double fWidth = 0;
438     CFNumberRef pWidthNum = (CFNumberRef)CFDictionaryGetValue( pAttrDict, kCTFontWidthTrait );
439     CFNumberGetValue( pWidthNum, kCFNumberDoubleType, &fWidth );
440     nInt = WIDTH_NORMAL;
441     if( fWidth > 0 ) {
442         nInt = rint( WIDTH_NORMAL + fWidth * ((WIDTH_ULTRA_EXPANDED - WIDTH_NORMAL)/0.4));
443         if( nInt > WIDTH_ULTRA_EXPANDED )
444             nInt = WIDTH_ULTRA_EXPANDED;
445     } else if( fWidth < 0 ) {
446         nInt = rint( WIDTH_NORMAL + fWidth * ((WIDTH_NORMAL - WIDTH_ULTRA_CONDENSED)/0.5));
447         if( nInt < WIDTH_ULTRA_CONDENSED )
448             nInt = WIDTH_ULTRA_CONDENSED;
449     }
450     rDFA.meWidthType = (FontWidth)nInt;
451 
452     // release the attribute dict that we had copied
453     CFRelease( pAttrDict );
454 
455     // TODO? also use the HEAD table if available to get more attributes
456 //  CFDataRef CTFontCopyTable( CTFontRef, kCTFontTableHead, /*kCTFontTableOptionNoOptions*/kCTFontTableOptionExcludeSynthetic );
457 
458 #if (OSL_DEBUG_LEVEL >= 1)
459     // update font attributes using the font's postscript name
460     ImplDevFontAttributes rDFA2;
461     CTFontRef pFont = CTFontCreateWithFontDescriptor( pFD, 0.0, NULL );
462     CFStringRef pPSName = CTFontCopyPostScriptName( pFont );
463     const String aPSName = GetOUString( pPSName );
464 
465     rDFA2.mbSymbolFlag = false;
466     rDFA2.mePitch      = PITCH_VARIABLE;
467     rDFA2.meWidthType  = WIDTH_NORMAL;
468     rDFA2.meWeight     = WEIGHT_NORMAL;
469     rDFA2.meItalic     = ITALIC_NONE;
470 
471     UpdateAttributesFromPSName( aPSName, rDFA2 );
472     CFRelease( pPSName );
473     CFRelease( pFont );
474 
475     // show the font details and compare the CTFontDescriptor vs. PSName traits
476     char cMatch = (rDFA.mbSymbolFlag==rDFA2.mbSymbolFlag);
477     cMatch &= (rDFA.meWeight==rDFA2.meWeight);
478     cMatch &= ((rDFA.meItalic==ITALIC_NONE) == (rDFA2.meItalic==ITALIC_NONE));
479     cMatch &= (rDFA.meWidthType==rDFA2.meWidthType);
480     cMatch = cMatch ? '.' : '#';
481 
482     char aFN[256], aSN[256];
483     CFStringGetCString( pFamilyName, aFN, sizeof(aFN), kCFStringEncodingUTF8 );
484     CFStringGetCString( pStyleName, aSN, sizeof(aSN), kCFStringEncodingUTF8 );
485 
486     const ByteString aPSCName( aPSName, RTL_TEXTENCODING_UTF8 );
487     const char* aPN = aPSCName.GetBuffer();
488     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",
489         (int)rDFA.mbSymbolFlag,(int)rDFA.meWeight,(int)rDFA.meItalic,(int)rDFA.meWidthType,
490         cMatch,
491         (int)rDFA2.mbSymbolFlag,(int)rDFA2.meWeight,(int)rDFA2.meItalic,(int)rDFA2.meWidthType,
492         bFontEnabled,
493         (int)(nSymbolTrait>>kCTFontClassMaskShift),fWeight,fSlant,fWidth,aFN,aSN,aPN);
494 #endif // (OSL_DEBUG_LEVEL >= 1)
495 
496     if( bFontEnabled)
497     {
498         const sal_IntPtr nFontId = (sal_IntPtr)pValue;
499         CTFontData* pFontData = new CTFontData( rDFA, nFontId );
500         CTFontList* pFontList = (CTFontList*)pContext;
501         pFontList->AddFont( pFontData );
502     }
503 }
504 
505 // =======================================================================
506 
507 CTFontList::CTFontList()
508 :   mpCTFontCollection( NULL )
509 ,   mpCTFontArray( NULL )
510 {}
511 
512 // -----------------------------------------------------------------------
513 
514 CTFontList::~CTFontList()
515 {
516     CTFontContainer::const_iterator it = maFontContainer.begin();
517     for(; it != maFontContainer.end(); ++it )
518         delete (*it).second;
519     maFontContainer.clear();
520 
521     if( mpCTFontArray )
522         CFRelease( mpCTFontArray );
523     if( mpCTFontCollection )
524         CFRelease( mpCTFontCollection );
525 }
526 
527 // -----------------------------------------------------------------------
528 
529 void CTFontList::AddFont( CTFontData* pFontData )
530 {
531     sal_IntPtr nFontId = pFontData->GetFontId();
532     maFontContainer[ nFontId ] = pFontData;
533 }
534 
535 // -----------------------------------------------------------------------
536 
537 void CTFontList::AnnounceFonts( ImplDevFontList& rFontList ) const
538 {
539     CTFontContainer::const_iterator it = maFontContainer.begin();
540     for(; it != maFontContainer.end(); ++it )
541         rFontList.Add( (*it).second->Clone() );
542 }
543 
544 // -----------------------------------------------------------------------
545 
546 ImplMacFontData* CTFontList::GetFontDataFromId( sal_IntPtr nFontId ) const
547 {
548     CTFontContainer::const_iterator it = maFontContainer.find( nFontId );
549     if( it == maFontContainer.end() )
550         return NULL;
551     return (*it).second;
552 }
553 
554 // -----------------------------------------------------------------------
555 
556 bool CTFontList::Init( void )
557 {
558 #ifndef DISABLE_CORETEXT_DYNLOAD
559     // check availability of the CoreText API
560     const DynCoreTextSyms& rCT = DynCoreTextSyms::get();
561     if( !rCT.IsActive() )
562         return false;
563 #endif // DISABLE_CORETEXT_DYNLOAD
564 
565     // enumerate available system fonts
566     static const int nMaxDictEntries = 8;
567     CFMutableDictionaryRef pCFDict = CFDictionaryCreateMutable( NULL,
568         nMaxDictEntries, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks );
569     CFDictionaryAddValue( pCFDict, kCTFontCollectionRemoveDuplicatesOption, kCFBooleanTrue );
570     mpCTFontCollection = rCT.FontCollectionCreateFromAvailableFonts( pCFDict );
571     CFRelease( pCFDict );
572 
573     mpCTFontArray = rCT.FontCollectionCreateMatchingFontDescriptors( mpCTFontCollection );
574     const int nFontCount = CFArrayGetCount( mpCTFontArray );
575     const CFRange aFullRange = CFRangeMake( 0, nFontCount );
576     CFArrayApplyFunction( mpCTFontArray, aFullRange, CTFontEnumCallBack, this );
577 
578     return true;
579 }
580 
581 // =======================================================================
582 
583 #ifndef DISABLE_CORETEXT_DYNLOAD
584 
585 DynCoreTextSyms::DynCoreTextSyms( void )
586 {
587     mbIsActive = false;
588 
589     // check if CoreText has been explicitely disabled
590     const char* pEnvStr = getenv( "SAL_DISABLE_CORETEXT");
591     if( pEnvStr && (pEnvStr[0] != '0') )
592         return;
593 
594     // check CoreText version
595     GetCoreTextVersion = (uint32_t(*)(void))dlsym( RTLD_DEFAULT, "CTGetCoreTextVersion");
596     if( !GetCoreTextVersion) return;
597 
598     const uint32_t nCTVersion = GetCoreTextVersion();
599     static const uint32_t mykCTVersionNumber10_5 = 0x00020000;
600     if( nCTVersion < mykCTVersionNumber10_5)
601         return;
602 
603     // load CoreText symbols dynamically
604     LineGetTrailingWhitespaceWidth = (double(*)(CTLineRef))dlsym( RTLD_DEFAULT, "CTLineGetTrailingWhitespaceWidth");
605     if( !LineGetTrailingWhitespaceWidth) return;
606 
607     LineCreateJustifiedLine = (CTLineRef(*)(CTLineRef,CGFloat,double))dlsym( RTLD_DEFAULT, "CTLineCreateJustifiedLine");
608     if( !LineCreateJustifiedLine) return;
609 
610     LineGetOffsetForStringIndex = (CGFloat(*)(CTLineRef,CFIndex,CGFloat*))dlsym( RTLD_DEFAULT, "CTLineGetOffsetForStringIndex");
611     if( !LineGetOffsetForStringIndex) return;
612 
613     LineGetGlyphRuns = (CFArrayRef(*)(CTLineRef))dlsym( RTLD_DEFAULT, "CTLineGetGlyphRuns");
614     if( !LineGetGlyphRuns) return;
615 
616     RunGetGlyphCount = (CFIndex(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetGlyphCount");
617     if( !RunGetGlyphCount) return;
618 
619     RunGetGlyphsPtr = (const CGGlyph*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetGlyphsPtr");
620     if( !RunGetGlyphsPtr) return;
621 
622     RunGetPositionsPtr = (const CGPoint*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetPositionsPtr");
623     if( !RunGetPositionsPtr) return;
624 
625     RunGetAdvancesPtr = (const CGSize*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetAdvancesPtr");
626     if( !RunGetAdvancesPtr) return;
627 
628     RunGetStringIndicesPtr = (const CFIndex*(*)(CTRunRef))dlsym( RTLD_DEFAULT, "CTRunGetStringIndicesPtr");
629     if( !RunGetStringIndicesPtr) return;
630 
631     FontCollectionCreateFromAvailableFonts = (CTFontCollectionRef(*)(CFDictionaryRef))dlsym( RTLD_DEFAULT, "CTFontCollectionCreateFromAvailableFonts");
632     if( !FontCollectionCreateFromAvailableFonts) return;
633 
634     FontCollectionCreateMatchingFontDescriptors = (CFArrayRef(*)(CTFontCollectionRef))dlsym( RTLD_DEFAULT, "CTFontCollectionCreateMatchingFontDescriptors");
635     if( !FontCollectionCreateMatchingFontDescriptors) return;
636 
637     FontCreatePathForGlyph = (CGPathRef(*)(CTFontRef,CGGlyph,const CGAffineTransform*))dlsym( RTLD_DEFAULT, "CTFontCreatePathForGlyph");
638     if( !FontCreatePathForGlyph) return;
639 
640     FontGetBoundingRectsForGlyphs = (CGRect(*)(CTFontRef,CTFontOrientation,CGGlyph*,CGRect*,CFIndex))dlsym( RTLD_DEFAULT, "CTFontGetBoundingRectsForGlyphs");
641     if( !FontGetBoundingRectsForGlyphs) return;
642 
643     mbIsActive = true;
644 }
645 
646 // -----------------------------------------------------------------------
647 
648 const DynCoreTextSyms& DynCoreTextSyms::get( void )
649 {
650     static DynCoreTextSyms aCT;
651     return aCT;
652 }
653 
654 #endif // DISABLE_CORETEXT_DYNLOAD
655 
656 // =======================================================================
657 
658 SystemFontList* GetCoretextFontList( void )
659 {
660     CTFontList* pList = new CTFontList();
661     if( !pList->Init() ) {
662         delete pList;
663         return NULL;
664     }
665 
666     return pList;
667 }
668 
669 // =======================================================================
670 
671