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// -*- mode:objc -*-
/*
** FontSizeEstimator.h
**
** Copyright (c) 2011
**
** Author: George Nachman
**
** Project: iTerm2
**
** Description: Attempts to measure font metrics because the OS's metrics
** are sometimes unreliable.
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#import "FontSizeEstimator.h"
@implementation FontSizeEstimator
@synthesize size;
@synthesize baseline;
- (id)initWithSize:(NSSize)s baseline:(double)b
{
self = [super init];
if (self) {
size = s;
baseline = b;
}
return self;
}
+ (id)fontSizeEstimatorForFont:(NSFont *)aFont
{
FontSizeEstimator* fse = [[[FontSizeEstimator alloc] init] autorelease];
if (fse) {
NSMutableDictionary *dic = [NSMutableDictionary dictionary];
[dic setObject:aFont forKey:NSFontAttributeName];
NSSize size = [@"W" sizeWithAttributes:dic];
size.width = size.width;
size.height = [aFont ascender] - [aFont descender];
double baseline = -(floorf([aFont leading]) - floorf([aFont descender]));
fse.size = size;
fse.baseline = baseline;
}
return fse;
}
@end
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