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f29476bc08
various methods add fieldEditor support. * GSContext.m/GSContext.h revert to previous code as solution discussed with Adam Fedor regarding backends had problems I had not forseen. * NSBrowserCell.h/.m specify text subcell as an NSCell, eliminate image cell, copyWithZone: optimize and eliminate use of ASSIGN (fixes serious dealloc bug), highlight: eliminate method (fixes dup display bug). * NSButtonCell.m copyWithZone: optimize and eliminate use of ASSIGN * NSStringDrawing.h/.m remove unimplemented draw methods from Category (these are backend specific, can't be defined twice and are already implemented in xraw). * NSApplication.h redefine initialize_gnustep_backend () per Adam's redefinition in the backend. * Functions.m/.h remove initialize_gnustep_backend() * NSCell.m preliminary implementation of fieldEditor mechanism, copyWithZone: optimize and eliminate use of ASSIGN * NSControl.m rename cell class global to _NSCONTROL_CELL_CLASS * NSMatrix.m implement NSControl's updateCell: to prevent unecessary matrix drawing if possible. * NSView.m -resizeWithOldSuperviewSize reverted code to my own once more (fewer lines and no if/else logic), changed code to use view frame instead of bounds per 3.3/4.2 docs, optimize to avoid floating point math and scale adjustment unless view has been scaled. * NSScrollView.m define as externs various PS* functions for use in drawing, polish drawing, move all backend code to front. * Tools/dummy.m define dummy PS* functions employed in gui. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3454 72102866-910b-0410-8b05-ffd578937521
103 lines
3.1 KiB
Objective-C
103 lines
3.1 KiB
Objective-C
/*
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NSStringDrawing.m
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Categories which add measure capabilities to NSAttributedString
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and 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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// by default tabs are measured as one
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#define TABWIDTH 3 // char so this value is set to one
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// minus the default tab width of 4
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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 = TABWIDTH;
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static float tabSize;
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float tabSumSize;
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static float pointSize;
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static NSFont *lastFont = nil;
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while(*str != '\0') // calc the additional size
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{ // to be added for tabs.
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if(*str++ == '\t')
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{ // j is initialized to the
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i += j; // max number of spaces
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j = TABWIDTH; // needed per tab. it then
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} // varies in order to align
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else // tabs to even multiples
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j = j-- > 0 ? j : TABWIDTH; // of TABWIDTH + 1.
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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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if(font != lastFont) // update font info
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{ // if font changes
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tabSize = [font widthOfString:@"\t"];
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lastFont = font;
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pointSize = [font pointSize];
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}
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tabSumSize = (float)i * tabSize;
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return NSMakeSize(([font widthOfString:self] + tabSumSize), pointSize);
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}
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@end
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@implementation NSAttributedString (NSStringDrawing)
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- (NSSize)size // this method is
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{ // untested FIX ME
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NSFont *font;
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unsigned int length;
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NSRange effectiveRange;
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NSString *subString;
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float pointSize;
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float sumOfCharacterRange = 0;
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length = [self length];
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effectiveRange = NSMakeRange(0, 0);
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while (NSMaxRange(effectiveRange) < length)
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{
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font = (NSFont*)[self attribute:NSFontAttributeName
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atIndex:NSMaxRange(effectiveRange)
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effectiveRange:&effectiveRange];
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subString = [self attributedSubstringFromRange:effectiveRange];
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sumOfCharacterRange += [font widthOfString:subString];
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pointSize = MAX([font pointSize], pointSize);
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}
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return NSMakeSize(sumOfCharacterRange, pointSize);
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}
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@end
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