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388f29cf3c
* NSAttributedString.m sizeWithAttributes: implement tab support. * NSStringDrawing.m sizeWithAttributes: implement tab support. * NSScroller.m trackScrollButtons: add temporary hack in support of XRAW's heavily optimized scrolling machinery. * NSScroller.m remove sendAction:to: * NSScrolView.m _doScroll: implement scroller update when scrolling via buttons * NSScrolView.m reflectScrolledClipView comment out setNeedsDisplay as it causes display flicker. * NSText.m add changes from Daniel B�hringer, set initFrame to default values to prevent infinite loop in rebuildLineLayout, minor tweaks * NSView.m minor optimiztions. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3071 72102866-910b-0410-8b05-ffd578937521
64 lines
1.8 KiB
Objective-C
64 lines
1.8 KiB
Objective-C
/*
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NSStringDrawing.m
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Category which adds measure capabilities to NSString.
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Copyright (C) 1997 Free Software Foundation, Inc.
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Author: Felipe A. Rodriguez <far@ix.netcom.com>
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Date: Aug 1998
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This file is part of the GNUstep GUI Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; see the file COPYING.LIB.
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If not, write to the Free Software Foundation,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <AppKit/NSStringDrawing.h>
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#include <AppKit/AppKit.h>
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@implementation NSString(NSStringDrawing)
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- (NSSize)sizeWithAttributes:(NSDictionary *)attrs
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{
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NSFont *font;
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const char *str = [self cString];
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int i = 0, j = 4;
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float tabSize;
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while(*str++ != '\0') // count the tabs
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{
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if(*str == '\t')
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{
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i += j;
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j = 4;
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}
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else
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j = j == 0 ? 4 : j--;
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};
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// if font is not
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if(!(font = [attrs objectForKey:NSFontAttributeName])) // specified, use
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font = [NSFont userFontOfSize:12]; // the default
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fprintf(stderr,"string %s width: %f\n", [self cString], [font widthOfString:self]);
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// tabSize = 4 * i * [font widthOfString:@" "];
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tabSize = (float)i * [font widthOfString:@" "];
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return NSMakeSize(([font widthOfString:self] + tabSize), [font pointSize]);
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}
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@end
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