场景：
1.假如你向做自己的字体管理界面时，这样就需要获取支持的所有字体名字。
2.objc的强大之处是它可以和C++混合编程，这是其他语言所不具备的。这里使用了ATS Service接口.ATS(AppleType Service)
文件1：test_fontdata.mm
#include <stdlib.h>
#include <stdio.h>
#include <ATSFont.h>
#import <Foundation/Foundation.h>
#include <vector>
#include <string>
inline void StoreFontDatabaseFromATS(std::vector<std::string>& name_list)
{
NSAutoreleasePool *pool = [NSAutoreleasePool new];
ATSFontFamilyIterator theFontFamilyIterator = NULL;
ATSFontFamilyRef theATSFontFamilyRef = 0;
OSStatus status = noErr;
// Create the iterator
status = ATSFontFamilyIteratorCreate(kATSFontContextLocal, nil,nil,
kATSOptionFlagsUnRestrictedScope,
&theFontFamilyIterator );
while (status == noErr)
{
// Get the next font in the iteration.
status = ATSFontFamilyIteratorNext( theFontFamilyIterator, &theATSFontFamilyRef );
if(status == noErr)
{
CFStringRef theName = NULL;
ATSFontFamilyGetName(theATSFontFamilyRef, kATSOptionFlagsDefault, &theName);
NSString *aNSString = (NSString*)theName;
std::string name([aNSString UTF8String]);
name_list.push_back(name);
}
else if (status == kATSIterationScopeModified) // Make sure the font database hasn't changed.
{
// reset the iterator
status = ATSFontFamilyIteratorReset (kATSFontContextLocal, nil, nil,
kATSOptionFlagsUnRestrictedScope,
&theFontFamilyIterator);
name_list.clear() ;
}
}
ATSFontFamilyIteratorRelease(&theFontFamilyIterator);
[pool drain];
}
int main(int argc,char* argv[])
{
std::vector<std::string> name_list;
StoreFontDatabaseFromATS(name_list);
for (int i = 0; i < name_list.size(); ++i)
{
printf("%s\n",name_list[i].c_str());
}
return 0;
}
一部分输出：
Futura Futura Condensed Optima ExtraBlack Herculanum Gill Sans Gill Sans Light Helvetica Neue Helvetica Neue Bold Condensed Helvetica Neue UltraLight Helvetica Neue Light Helvetica Neue Black Condensed Papyrus Papyrus Condensed .TimesLTMM_1_Wt_1_Wd .HelveLTMM_170_Wt_1200_Wd Optima
编译项：
g++ -I/Applications/Xcode\(4.3.2\).app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Headers -o test_fontdata test_fontdata.mm -framework ApplicationServices -framework Cocoa