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Merge pull request #544 from JeffProgrammer/mac-font-stuff

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[PLEASE TEST BEFORE MERGE] Mac font stuff
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Brian Roberts 2021-08-27 14:29:48 -05:00 • committed by GitHub
commit 458eac8474
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1 changed files with 48 additions and 18 deletions
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66
Engine/source/platformMac/macFont.mm
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@ -83,9 +83,34 @@ bool OSXFont::create( const char* name, dsize_t size, U32 charset )
{
// Sanity!
AssertFatal( name != NULL, "Cannot create a NULL font name." );
bool doBold = false;
bool doItalic = false;
String nameStr = name;
nameStr = nameStr.trim();
bool haveModifier;
do
{
haveModifier = false;
if( nameStr.compare( "Bold", 4, String::NoCase | String::Right ) == 0 )
{
doBold = true;
nameStr = nameStr.substr( 0, nameStr.length() - 4 ).trim();
haveModifier = true;
}
if( nameStr.compare( "Italic", 6, String::NoCase | String::Right ) == 0 )
{
doItalic = true;
nameStr = nameStr.substr( 0, nameStr.length() - 6 ).trim();
haveModifier = true;
}
}
while( haveModifier );
// Generate compatible font name.
CFStringRef fontName = CFStringCreateWithCString( kCFAllocatorDefault, name, kCFStringEncodingUTF8 );
NSString* fontName = [NSString stringWithUTF8String: nameStr.utf8()];
// Sanity!
if ( !fontName )
@ -94,12 +119,22 @@ bool OSXFont::create( const char* name, dsize_t size, U32 charset )
return false;
}
// Use Windows as a baseline (96 DPI) and adjust accordingly.
F32 scaledSize = size * (72.0f/96.0f);
scaledSize = mRound(scaledSize);
NSMutableDictionary* fontAttributes = [NSMutableDictionary dictionaryWithObjectsAndKeys:
fontName, (NSString*)kCTFontFamilyNameAttribute,
[NSNumber numberWithFloat: (float)size], (NSString*)kCTFontSizeAttribute,
nil];
// Create the font reference.
mFontRef = CTFontCreateWithName( fontName, scaledSize, NULL );
CTFontSymbolicTraits traits = 0x0;
if (doBold)
traits |= kCTFontBoldTrait;
if (doItalic)
traits |= kCTFontItalicTrait;
CTFontDescriptorRef descriptor =
CTFontDescriptorCreateWithAttributes((CFDictionaryRef)fontAttributes);
mFontRef = CTFontCreateWithFontDescriptor(descriptor, 0.0, NULL);
CFRelease(descriptor);
// Sanity!
if ( !mFontRef )
@ -108,6 +143,10 @@ bool OSXFont::create( const char* name, dsize_t size, U32 charset )
return false;
}
// Apply font traits if we have any by creating a copy of the font
if (traits != 0x0)
mFontRef = CTFontCreateCopyWithSymbolicTraits(mFontRef, (float)size, NULL, traits, traits);
// Fetch font metrics.
CGFloat ascent = CTFontGetAscent( mFontRef );
CGFloat descent = CTFontGetDescent( mFontRef );
@ -227,17 +266,8 @@ PlatformFont::CharInfo& OSXFont::getCharInfo(const UTF16 character) const
CGPoint renderOrigin;
renderOrigin.x = -characterInfo.xOrigin;
renderOrigin.y = -characterInfo.yOrigin;
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
CTFontDrawGlyphs( mFontRef, &characterGlyph, &renderOrigin, 1, bitmapContext );
#else
CGFontRef cgFont = CTFontCopyGraphicsFont(mFontRef, NULL);
CGContextSetFont(bitmapContext, cgFont);
CGContextSetFontSize(bitmapContext, CTFontGetSize(mFontRef));
CGContextShowGlyphsAtPositions(bitmapContext, &characterGlyph, &renderOrigin, 1);
CFRelease(cgFont);
#endif
#if 0
Con::printf("Width:%f, Height:%f, OriginX:%f, OriginY:%f",
@ -255,4 +285,4 @@ PlatformFont::CharInfo& OSXFont::getCharInfo(const UTF16 character) const
// Return character information.
return characterInfo;
}
}