在移植一些 古代 代码时,我遇到了一个特殊的类,在OS X 10.4中被称为NSGlyph。在谷歌搜索了一段时间之后,我想出了very few hits到底是做了什么,以及为什么它对框架中的if-else分支很重要。特别是,方法NSFont -glyphIsEncoded:
似乎是某些分支的一个重要组成部分,如果只是为了突破某些东西,那么将它放到后面并继续前进将是一种耻辱。有人知道NSFont -glyphIsEncoded:
的合适替代品吗?
if (glyph == 0xffff || ![font glyphIsEncoded:glyph]) {
// Switch to getting it from the system font for "normal" keys
// get the glyph from the layout manager (this normally will be the ascii value)
glyph = [layoutManager glyphAtIndex: i];
font = [NSFont systemFontOfSize:[font pointSize]]; // use the system font
//NSLog(@"Asking layout manager for glyph for %@, got %d", glyphName, glyph);
}
if (glyph != 0xffff && [font glyphIsEncoded:glyph]) {
NSRect bounds = [font boundingRectForGlyph:glyph];
[path moveToPoint: NSMakePoint(left, 0.0 - [font descender])];
[path appendBezierPathWithGlyph: glyph inFont: font];
left += [font advancementForGlyph: glyph].width;
continue; // rendered a character
} //etc...
答案 0 :(得分:2)