diff options
Diffstat (limited to 'tikzit/src/common/util.m')
| -rw-r--r-- | tikzit/src/common/util.m | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tikzit/src/common/util.m b/tikzit/src/common/util.m index aa21a67..e9b8899 100644 --- a/tikzit/src/common/util.m +++ b/tikzit/src/common/util.m @@ -376,5 +376,28 @@ const char *find_start_of_nth_line (const char * string, int line) { return lineStart; } +NSString *formatFloat(CGFloat f, int maxdps) { + NSMutableString *result = [NSMutableString + stringWithFormat:@"%.*f", maxdps, f]; + // delete trailing zeros + NSUInteger lastPos = [result length] - 1; + NSUInteger firstDigit = ([result characterAtIndex:0] == '-') ? 1 : 0; + while (lastPos > firstDigit) { + if ([result characterAtIndex:lastPos] == '0') { + [result deleteCharactersInRange:NSMakeRange(lastPos, 1)]; + lastPos -= 1; + } else { + break; + } + } + if ([result characterAtIndex:lastPos] == '.') { + [result deleteCharactersInRange:NSMakeRange(lastPos, 1)]; + lastPos -= 1; + } + if ([@"-0" isEqualToString:result]) + return @"0"; + else + return result; +} // vi:ft=objc:noet:ts=4:sts=4:sw=4 |