void QFontDatabase::createDatabase() { if(db) return; db = new QFontDatabasePrivate; qfontdatabase_cleanup.set(&db); FMFontFamilyIterator it; QString foundry_name = "Mac"; if(!FMCreateFontFamilyIterator(NULL, NULL, kFMUseGlobalScopeOption, &it)) { FMFontFamily fam; QString fam_name; while(!FMGetNextFontFamily(&it, &fam)) { static Str255 n; if(FMGetFontFamilyName(fam, n) != noErr) qDebug("Qt: internal: WH0A, %s %d", __FILE__, __LINE__); if(!n[0] || n[1] == '.') //throw out ones starting with a . continue; { short fnum; ATSUFontID fond; GetFNum(n, &fnum); if(ATSUFONDtoFontID(fnum, 0, &fond) != noErr) continue; } TextEncoding encoding; FMGetFontFamilyTextEncoding(fam, &encoding); TextToUnicodeInfo uni_info; CreateTextToUnicodeInfoByEncoding(encoding, &uni_info); unsigned long len = n[0] * 2; unsigned char *buff = (unsigned char *)malloc(len); ConvertFromPStringToUnicode(uni_info, n, len, &len, (UniCharArrayPtr)buff); fam_name = ""; for(unsigned long x = 0; x < len; x+=2) { #if defined(__i386__) fam_name += QChar(buff[x], buff[x+1]); #else fam_name += QChar(buff[x+1], buff[x]); #endif } free(buff); DisposeTextToUnicodeInfo(&uni_info); QtFontFamily *family = db->family( fam_name, TRUE ); family->macFamily = fam; for(int script = 0; script < QFont::LastPrivateScript; ++script) family->scripts[script] = QtFontFamily::Supported; QtFontFoundry *foundry = family->foundry( foundry_name, TRUE ); FMFontFamilyInstanceIterator fit; if(!FMCreateFontFamilyInstanceIterator(fam, &fit)) { FMFont font; FMFontStyle font_style; FMFontSize font_size; while(!FMGetNextFontFamilyInstance(&fit, &font, &font_style, &font_size)) { bool italic = (bool)(font_style & ::italic); int weight = ((font_style & ::bold) ? QFont::Bold : QFont::Normal); QtFontStyle::Key styleKey; styleKey.italic = italic; styleKey.oblique = false; styleKey.weight = weight; QtFontStyle *style = foundry->style( styleKey, TRUE ); style->smoothScalable = TRUE; if( !italic ) { styleKey.oblique = TRUE; style = foundry->style( styleKey, TRUE ); style->smoothScalable = TRUE; styleKey.oblique = FALSE; } if(weight < QFont::DemiBold) { // Can make bolder styleKey.weight = QFont::Bold; if(italic) { style = foundry->style( styleKey, TRUE ); style->smoothScalable = TRUE; } else { styleKey.oblique = TRUE; style = foundry->style( styleKey, TRUE ); style->smoothScalable = TRUE; } } } FMDisposeFontFamilyInstanceIterator(&fit); } } FMDisposeFontFamilyIterator(&it); } }
PsychError SCREENTextBounds(void) { //for debugging TextEncodingBase textEncodingBase; TextEncodingVariant textEncodingVariant; TextEncodingFormat textEncodingFormat; /////// PsychWindowRecordType *winRec; char *textCString; Str255 textPString; UniChar *textUniString; OSStatus callError; PsychRectType resultPsychRect, resultPsychNormRect; ATSUTextLayout textLayout; //layout is a pointer to an opaque struct. int stringLengthChars; int uniCharBufferLengthElements, uniCharBufferLengthChars, uniCharBufferLengthBytes; ByteCount uniCharStringLengthBytes; TextToUnicodeInfo textToUnicodeInfo; TextEncoding textEncoding; ATSUStyle atsuStyle; Boolean foundFont; //for ATSU style attributes PsychFontStructPtrType psychFontRecord; //all subfunctions should have these two lines. PsychPushHelp(useString, synopsisString, seeAlsoString); if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);}; //check for correct the number of arguments before getting involved PsychErrorExit(PsychCapNumInputArgs(2)); PsychErrorExit(PsychRequireNumInputArgs(2)); PsychErrorExit(PsychCapNumOutputArgs(2)); //get the window pointer and the text string and check that the window record has a font set PsychAllocInWindowRecordArg(1, kPsychArgRequired, &winRec); foundFont=PsychGetFontRecordFromFontNumber(winRec->textAttributes.textFontNumber, &psychFontRecord); if(!foundFont) PsychErrorExitMsg(PsychError_user, "Attempt to determine the bounds of text with no font or invalid font number"); //it would be better to both prevent the user from setting invalid font numbers and init to the OS 9 default font. //read in the string and get its length and convert it to a unicode string. PsychAllocInCharArg(2, kPsychArgRequired, &textCString); stringLengthChars=strlen(textCString); if(stringLengthChars > 255) PsychErrorExitMsg(PsychError_unimplemented, "Cut corners and TextBounds will not accept a string longer than 255 characters"); CopyCStringToPascal(textCString, textPString); uniCharBufferLengthChars= stringLengthChars * CHAR_TO_UNICODE_LENGTH_FACTOR; uniCharBufferLengthElements= uniCharBufferLengthChars + 1; uniCharBufferLengthBytes= sizeof(UniChar) * uniCharBufferLengthElements; textUniString=(UniChar*)malloc(uniCharBufferLengthBytes); //Using a TextEncoding type describe the encoding of the text to be converteed. textEncoding=CreateTextEncoding(kTextEncodingMacRoman, kMacRomanDefaultVariant, kTextEncodingDefaultFormat); //Take apart the encoding we just made to check it: textEncodingBase=GetTextEncodingBase(textEncoding); textEncodingVariant=GetTextEncodingVariant(textEncoding); textEncodingFormat=GetTextEncodingFormat(textEncoding); //Create a structure holding conversion information from the text encoding type we just created. callError=CreateTextToUnicodeInfoByEncoding(textEncoding,&textToUnicodeInfo); //Convert the text to a unicode string callError=ConvertFromPStringToUnicode(textToUnicodeInfo, textPString, (ByteCount)uniCharBufferLengthBytes, &uniCharStringLengthBytes, textUniString); //create the text layout object callError=ATSUCreateTextLayout(&textLayout); //associate our unicode text string with the text layout object callError=ATSUSetTextPointerLocation(textLayout, textUniString, kATSUFromTextBeginning, kATSUToTextEnd, (UniCharCount)stringLengthChars); //create an ATSU style object callError=ATSUCreateStyle(&atsuStyle); callError=ATSUClearStyle(atsuStyle); //Not that we have a style object we have to set style charactersitics. These include but are more general than Font Manager styles. //ATSU Style objects have three sets of characteristics: attributes, variations, and features. //attributes are things we need to set to match OS 9 behavior, such as the font ID, size, boldness, and italicization. //features are esoteric settings which we don't need for reproducing OS 9 behavior. Whatever clearstyle sets should be fine. //font variations are axes of variation through the space of font characteristics. The font definition includes available axes of variation. Something else we can ignore for now. PsychSetATSUStyleAttributesFromPsychWindowRecord(atsuStyle, winRec); //don't bother to set the variations of the style. //don't bother to set the features of the style. //associate the style with our layout object. This call assigns a style to every character of the string to be displayed. callError=ATSUSetRunStyle(textLayout, atsuStyle, (UniCharArrayOffset)0, (UniCharCount)stringLengthChars); //Get the bounds for our text so that and create a texture of sufficient size to containt it. ATSTrapezoid trapezoid; ItemCount oActualNumberOfBounds = 0; callError=ATSUGetGlyphBounds(textLayout, 0, 0, kATSUFromTextBeginning, kATSUToTextEnd, kATSUseDeviceOrigins, 0, NULL, &oActualNumberOfBounds); if (callError || oActualNumberOfBounds!=1) { PsychErrorExitMsg(PsychError_internal, "Failed to compute bounding box in call 1 to ATSUGetGlyphBounds() (nrbounds!=1)\n"); } callError=ATSUGetGlyphBounds(textLayout, 0, 0, kATSUFromTextBeginning, kATSUToTextEnd, kATSUseDeviceOrigins, 1, &trapezoid, &oActualNumberOfBounds); if (callError || oActualNumberOfBounds!=1) { PsychErrorExitMsg(PsychError_internal, "Failed to retrieve bounding box in call 2 to ATSUGetGlyphBounds() (nrbounds!=1)\n"); } resultPsychRect[kPsychLeft]=(Fix2X(trapezoid.upperLeft.x) < Fix2X(trapezoid.lowerLeft.x)) ? Fix2X(trapezoid.upperLeft.x) : Fix2X(trapezoid.lowerLeft.x); resultPsychRect[kPsychRight]=(Fix2X(trapezoid.upperRight.x) > Fix2X(trapezoid.lowerRight.x)) ? Fix2X(trapezoid.upperRight.x) : Fix2X(trapezoid.lowerRight.x); resultPsychRect[kPsychTop]=(Fix2X(trapezoid.upperLeft.y) < Fix2X(trapezoid.upperRight.y)) ? Fix2X(trapezoid.upperLeft.y) : Fix2X(trapezoid.upperRight.y); resultPsychRect[kPsychBottom]=(Fix2X(trapezoid.lowerLeft.y) > Fix2X(trapezoid.lowerRight.y)) ? Fix2X(trapezoid.lowerLeft.y) : Fix2X(trapezoid.lowerRight.y); PsychNormalizeRect(resultPsychRect, resultPsychNormRect); PsychCopyOutRectArg(1, FALSE, resultPsychNormRect); PsychCopyOutRectArg(2, FALSE, resultPsychRect); //release resources free((void*)textUniString); callError=ATSUDisposeStyle(atsuStyle); return(PsychError_none); }
PsychError SCREENTextBounds(void) { //for debugging TextEncodingBase textEncodingBase; TextEncodingVariant textEncodingVariant; TextEncodingFormat textEncodingFormat; /////// PsychWindowRecordType *winRec; char *textCString; Str255 textPString; UniChar *textUniString; OSStatus callError; PsychRectType resultPsychRect, resultPsychNormRect; ATSUTextLayout textLayout; //layout is a pointer to an opaque struct. int stringLengthChars; int uniCharBufferLengthElements, uniCharBufferLengthChars, uniCharBufferLengthBytes, yPositionIsBaseline; double textHeightToBaseline; ByteCount uniCharStringLengthBytes; TextToUnicodeInfo textToUnicodeInfo; TextEncoding textEncoding; ATSUStyle atsuStyle; Boolean foundFont; //for ATSU style attributes PsychFontStructPtrType psychFontRecord; //all subfunctions should have these two lines. PsychPushHelp(useString, synopsisString, seeAlsoString); if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);}; //check for correct the number of arguments before getting involved PsychErrorExit(PsychCapNumInputArgs(5)); PsychErrorExit(PsychRequireNumInputArgs(2)); PsychErrorExit(PsychCapNumOutputArgs(2)); //get the window pointer and the text string and check that the window record has a font set PsychAllocInWindowRecordArg(1, kPsychArgRequired, &winRec); foundFont=PsychGetFontRecordFromFontNumber(winRec->textAttributes.textFontNumber, &psychFontRecord); if(!foundFont) PsychErrorExitMsg(PsychError_user, "Attempt to determine the bounds of text with no font or invalid font number"); //it would be better to both prevent the user from setting invalid font numbers and init to the OS 9 default font. //read in the string and get its length and convert it to a unicode string. PsychAllocInCharArg(2, kPsychArgRequired, &textCString); stringLengthChars=strlen(textCString); if(stringLengthChars < 1) PsychErrorExitMsg(PsychError_user, "You asked me to compute the bounding box of an empty text string?!? Sorry, that's a no no..."); if(stringLengthChars > 255) PsychErrorExitMsg(PsychError_unimplemented, "Cut corners and TextBounds will not accept a string longer than 255 characters"); CopyCStringToPascal(textCString, textPString); uniCharBufferLengthChars= stringLengthChars * CHAR_TO_UNICODE_LENGTH_FACTOR; uniCharBufferLengthElements= uniCharBufferLengthChars + 1; uniCharBufferLengthBytes= sizeof(UniChar) * uniCharBufferLengthElements; textUniString=(UniChar*)malloc(uniCharBufferLengthBytes); PsychCopyInDoubleArg(3, kPsychArgOptional, &(winRec->textAttributes.textPositionX)); PsychCopyInDoubleArg(4, kPsychArgOptional, &(winRec->textAttributes.textPositionY)); //Using a TextEncoding type describe the encoding of the text to be converteed. textEncoding=CreateTextEncoding(kTextEncodingMacRoman, kMacRomanDefaultVariant, kTextEncodingDefaultFormat); //Take apart the encoding we just made to check it: textEncodingBase=GetTextEncodingBase(textEncoding); textEncodingVariant=GetTextEncodingVariant(textEncoding); textEncodingFormat=GetTextEncodingFormat(textEncoding); //Create a structure holding conversion information from the text encoding type we just created. callError=CreateTextToUnicodeInfoByEncoding(textEncoding,&textToUnicodeInfo); //Convert the text to a unicode string callError=ConvertFromPStringToUnicode(textToUnicodeInfo, textPString, (ByteCount)uniCharBufferLengthBytes, &uniCharStringLengthBytes, textUniString); //create the text layout object callError=ATSUCreateTextLayout(&textLayout); //associate our unicode text string with the text layout object callError=ATSUSetTextPointerLocation(textLayout, textUniString, kATSUFromTextBeginning, kATSUToTextEnd, (UniCharCount)stringLengthChars); //create an ATSU style object callError=ATSUCreateStyle(&atsuStyle); callError=ATSUClearStyle(atsuStyle); //Not that we have a style object we have to set style charactersitics. These include but are more general than Font Manager styles. //ATSU Style objects have three sets of characteristics: attributes, variations, and features. //attributes are things we need to set to match OS 9 behavior, such as the font ID, size, boldness, and italicization. //features are esoteric settings which we don't need for reproducing OS 9 behavior. Whatever clearstyle sets should be fine. //font variations are axes of variation through the space of font characteristics. The font definition includes available axes of variation. Something else we can ignore for now. PsychSetATSUStyleAttributesFromPsychWindowRecord(atsuStyle, winRec); //don't bother to set the variations of the style. //don't bother to set the features of the style. //associate the style with our layout object. This call assigns a style to every character of the string to be displayed. callError=ATSUSetRunStyle(textLayout, atsuStyle, (UniCharArrayOffset)0, (UniCharCount)stringLengthChars); // Define the meaning of the y position of the specified drawing cursor. // We get the global setting from the Screen preference, but allow to override // it on a per-invocation basis via the optional 7th argument to 'DrawText': yPositionIsBaseline = PsychPrefStateGet_TextYPositionIsBaseline(); PsychCopyInIntegerArg(5, kPsychArgOptional, &yPositionIsBaseline); if (yPositionIsBaseline) { // Y position of drawing cursor defines distance between top of text and // baseline of text, i.e. the textheight excluding descenders of letters: // Need to compute offset via ATSU: ATSUTextMeasurement mleft, mright, mtop, mbottom; callError=ATSUGetUnjustifiedBounds(textLayout, kATSUFromTextBeginning, kATSUToTextEnd, &mleft, &mright, &mbottom, &mtop); if (callError) { PsychErrorExitMsg(PsychError_internal, "Failed to compute unjustified text height to baseline in call to ATSUGetUnjustifiedBounds().\n"); } // Only take height including ascenders into account, not the descenders. // MK: Honestly, i have no clue why this is the correct calculation (or if it is // the correct calculation), but visually it seems to provide the correct results // and i'm not a typographic expert and don't intend to become one... textHeightToBaseline = fabs(Fix2X(mbottom)); } else { // Y position of drawing cursor defines top of text, therefore no offset (==0) needed: textHeightToBaseline = 0; } //Get the bounds for our text so that and create a texture of sufficient size to containt it. ATSTrapezoid trapezoid; ItemCount oActualNumberOfBounds = 0; callError=ATSUGetGlyphBounds(textLayout, 0, 0, kATSUFromTextBeginning, kATSUToTextEnd, kATSUseDeviceOrigins, 0, NULL, &oActualNumberOfBounds); if (callError || oActualNumberOfBounds!=1) { PsychErrorExitMsg(PsychError_internal, "Failed to compute bounding box in call 1 to ATSUGetGlyphBounds() (nrbounds!=1)\n"); } callError=ATSUGetGlyphBounds(textLayout, 0, 0, kATSUFromTextBeginning, kATSUToTextEnd, kATSUseDeviceOrigins, 1, &trapezoid, &oActualNumberOfBounds); if (callError || oActualNumberOfBounds!=1) { PsychErrorExitMsg(PsychError_internal, "Failed to retrieve bounding box in call 2 to ATSUGetGlyphBounds() (nrbounds!=1)\n"); } resultPsychRect[kPsychLeft]=(Fix2X(trapezoid.upperLeft.x) < Fix2X(trapezoid.lowerLeft.x)) ? Fix2X(trapezoid.upperLeft.x) : Fix2X(trapezoid.lowerLeft.x); resultPsychRect[kPsychRight]=(Fix2X(trapezoid.upperRight.x) > Fix2X(trapezoid.lowerRight.x)) ? Fix2X(trapezoid.upperRight.x) : Fix2X(trapezoid.lowerRight.x); resultPsychRect[kPsychTop]=(Fix2X(trapezoid.upperLeft.y) < Fix2X(trapezoid.upperRight.y)) ? Fix2X(trapezoid.upperLeft.y) : Fix2X(trapezoid.upperRight.y); resultPsychRect[kPsychBottom]=(Fix2X(trapezoid.lowerLeft.y) > Fix2X(trapezoid.lowerRight.y)) ? Fix2X(trapezoid.lowerLeft.y) : Fix2X(trapezoid.lowerRight.y); PsychNormalizeRect(resultPsychRect, resultPsychNormRect); resultPsychRect[kPsychLeft]=resultPsychNormRect[kPsychLeft] + winRec->textAttributes.textPositionX; resultPsychRect[kPsychRight]=resultPsychNormRect[kPsychRight] + winRec->textAttributes.textPositionX; resultPsychRect[kPsychTop]=resultPsychNormRect[kPsychTop] + winRec->textAttributes.textPositionY - textHeightToBaseline; resultPsychRect[kPsychBottom]=resultPsychNormRect[kPsychBottom] + winRec->textAttributes.textPositionY - textHeightToBaseline; PsychCopyOutRectArg(1, FALSE, resultPsychNormRect); PsychCopyOutRectArg(2, FALSE, resultPsychRect); //release resources free((void*)textUniString); callError=ATSUDisposeStyle(atsuStyle); return(PsychError_none); }