void drawTextWithFeature(CGContextRef context, CTFontDescriptorRef fontDescriptor, CFStringRef feature, int value, CGPoint location) { CGFloat fontSize = 25; CGContextSetTextMatrix(context, CGAffineTransformScale(CGAffineTransformIdentity, 1, 1)); CGContextSetTextPosition(context, location.x, location.y); CFNumberRef featureValue = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &value); CFTypeRef featureDictionaryKeys[] = { kCTFontOpenTypeFeatureTag, kCTFontOpenTypeFeatureValue }; CFTypeRef featureDictionaryValues[] = { feature, featureValue }; CFDictionaryRef featureDictionary = CFDictionaryCreate(kCFAllocatorDefault, featureDictionaryKeys, featureDictionaryValues, 2, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); CFRelease(featureValue); CFTypeRef featureSettingsValues[] = { featureDictionary }; CFArrayRef fontFeatureSettings = CFArrayCreate(kCFAllocatorDefault, featureSettingsValues, 1, &kCFTypeArrayCallBacks); CFRelease(featureDictionary); CFTypeRef fontDescriptorKeys[] = { kCTFontFeatureSettingsAttribute }; CFTypeRef fontDescriptorValues[] = { fontFeatureSettings }; CFDictionaryRef fontDescriptorAttributes = CFDictionaryCreate(kCFAllocatorDefault, fontDescriptorKeys, fontDescriptorValues, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); CFRelease(fontFeatureSettings); CTFontDescriptorRef modifiedFontDescriptor = CTFontDescriptorCreateCopyWithAttributes(fontDescriptor, fontDescriptorAttributes); CFRelease(fontDescriptorAttributes); CTFontRef font = CTFontCreateWithFontDescriptor(modifiedFontDescriptor, fontSize, nullptr); CFRelease(modifiedFontDescriptor); CFMutableStringRef string = CFStringCreateMutable(kCFAllocatorDefault, 0); CFStringAppend(string, feature); CFStringAppend(string, value ? CFSTR(" (on)") : CFSTR(" (off)")); CFStringAppend(string, CFSTR(": ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); CGColorRef red = CGColorCreateGenericRGB(1, 0, 0, 1); CFTypeRef lineKeys[] = { kCTForegroundColorAttributeName }; CFTypeRef lineValues[] = { red }; CFDictionaryRef lineAttributes = CFDictionaryCreate(kCFAllocatorDefault, lineKeys, lineValues, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); CGColorRelease(red); CFAttributedStringRef attributedString = CFAttributedStringCreate(kCFAllocatorDefault, string, lineAttributes); CFRelease(lineAttributes); CFRelease(string); CFMutableAttributedStringRef mutableAttributedString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 0, attributedString); CFRelease(attributedString); CTFontRef monospaceFont = CTFontCreateWithName(CFSTR("Courier"), fontSize, nullptr); CFAttributedStringSetAttribute(mutableAttributedString, CFRangeMake(0, 12), kCTFontAttributeName, monospaceFont); CFRelease(monospaceFont); CFAttributedStringSetAttribute(mutableAttributedString, CFRangeMake(12, 52), kCTFontAttributeName, font); CFRelease(font); CTLineRef line = CTLineCreateWithAttributedString(mutableAttributedString); CFRelease(mutableAttributedString); CTLineDraw(line, context); CFRelease(line); }
OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize) { CGFloat minCartDrawSize = 64; CGFloat size = fmin(maxSize.width, maxSize.height); CGContextRef qlContext = NULL; if (size < minCartDrawSize) { size = 32; qlContext = QLThumbnailRequestCreateContext(thumbnail, CGSizeMake(size,size), true, NULL); } else { qlContext = QLThumbnailRequestCreateContext(thumbnail, CGSizeMake(size,size), false, NULL); } if (qlContext) { NDSHeader header; NDSIcon icon; int pathlen = 2047; UInt8 path[pathlen+1]; if (CFURLGetFileSystemRepresentation(url, true, path, pathlen)) { if (size < minCartDrawSize) { // at smaller sizes we only draw the game icon at native size and let QL do the scaling parseNDSInfo(path, &header, &icon); CGImageRef image = CGImageCreateWithNDSIcon(&icon); if (image) { CGContextDrawImage(qlContext, CGRectMake(0, 0, size, size), image); CGImageRelease(image); } } else { CGContextClearRect(qlContext, CGRectMake(0,0,size,size)); // draw cartridge background CFURLRef bgURL = CFBundleCopyResourceURL(CFBundleGetBundleWithIdentifier( CFSTR("net.mironer.nds.quicklookgenerator")), CFSTR("background"), CFSTR("png"), NULL); if (bgURL) { CGDataProviderRef bgPNG = CGDataProviderCreateWithURL(bgURL); if (bgPNG) { CGImageRef bg = CGImageCreateWithPNGDataProvider(bgPNG, NULL, true, kCGRenderingIntentDefault); if (bg) { CGContextDrawImage(qlContext, CGRectMake(0, 0, size, size), bg); CGImageRelease(bg); } CGDataProviderRelease(bgPNG); } CFRelease(bgURL); } // draw game icon parseNDSInfo(path, &header, &icon); CGImageRef image = CGImageCreateWithNDSIcon(&icon); if (image) { CGContextDrawImage(qlContext, CGRectMake(size / 5, size / 5, size * 3 / 5, size * 3 / 5), image); CGImageRelease(image); } // draw cartridge overlay CFURLRef ovrURL = CFBundleCopyResourceURL( CFBundleGetBundleWithIdentifier( CFSTR("net.mironer.nds.quicklookgenerator")), CFSTR("overlay"), CFSTR("png"), NULL); if (ovrURL) { CGDataProviderRef ovrPNG = CGDataProviderCreateWithURL(ovrURL); if (ovrPNG) { CGImageRef ovr = CGImageCreateWithPNGDataProvider(ovrPNG, NULL, true, kCGRenderingIntentDefault); if (ovr) { CGContextDrawImage(qlContext, CGRectMake(0, 0, size, size), ovr); CGImageRelease(ovr); } CGDataProviderRelease(ovrPNG); } CFRelease(ovrURL); } // draw serial number CFStringRef serial = CFStringCreateWithSerialNumber(&header); CFAttributedStringRef aString = CFAttributedStringCreate(kCFAllocatorDefault, serial, NULL); CFMutableAttributedStringRef attrStr = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 128, aString); CFIndex len = CFAttributedStringGetLength(attrStr); CTFontRef font = CTFontCreateWithName(CFSTR("Lucida Sans"), size / 16, NULL); CFAttributedStringSetAttribute(attrStr, CFRangeMake(0, len), kCTFontAttributeName, font); CTTextAlignment rightAlign = kCTRightTextAlignment; CTParagraphStyleSetting styleSettings[] = { {kCTParagraphStyleSpecifierAlignment, sizeof(rightAlign), &rightAlign} }; CTParagraphStyleRef paragraphStyle = CTParagraphStyleCreate(styleSettings, 1); CFAttributedStringSetAttribute(attrStr, CFRangeMake(0, len), kCTParagraphStyleAttributeName, paragraphStyle); CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString(attrStr); CFRelease(attrStr); CFRelease(aString); CFRelease(serial); CFRelease(font); CGMutablePathRef path = CGPathCreateMutable(); CGPathAddRect(path, NULL, CGRectMake(-size * 1.55 / 8, -size * 6.1 / 8, size, size)); CTFrameRef frame = CTFramesetterCreateFrame(framesetter, CFRangeMake(0, 0), path, NULL); CTFrameDraw(frame, qlContext); CFRelease(frame); CFRelease(framesetter); CFRelease(paragraphStyle); CFRelease(path); } } QLThumbnailRequestFlushContext(thumbnail, qlContext); CFRelease(qlContext); } return noErr; }