Source/BSSourceViewTextView.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2009, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import "BSSourceViewTextView.h"
  18 #import "BSSourceView.h"
  19
  20 @implementation BSSourceViewTextView
  21
  22 @synthesize sourceView;
  23
  24 /**
  25  * Override -[drawRect:] so we can tell the line numbers to draw
  26  */
  27 - (void)drawRect:(NSRect)rect
  28 {
  29         [super drawRect:rect];
  30
  31         unsigned i = 0, line = 1;
  32         while (i < [[self layoutManager] numberOfGlyphs])
  33         {
  34                 NSRange fragRange;
  35                 NSRect fragRect = [self convertRect:[[self layoutManager] lineFragmentRectForGlyphAtIndex:i effectiveRange:&fragRange] fromView:self];
  36                 fragRect.origin.x = rect.origin.x; // horizontal scrolling matters not
  37
  38                 if ([sourceView markedLine] == line)
  39                 {
  40                         [[[NSColor redColor] colorWithAlphaComponent:0.25] set];
  41                         [NSBezierPath fillRect:fragRect];
  42                         break;
  43                 }
  44
  45                 i += fragRange.length;
  46                 line++;
  47         }
  48
  49         [[sourceView numberView] setNeedsDisplay:YES];
  50 }
  51
  52 @end