Source/BSSourceViewTextView.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2011, 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
  19 #import "BSSourceView.h"
  20
  21 @implementation BSSourceViewTextView
  22
  23 @synthesize sourceView = sourceView_;
  24
  25 - (void)drawRect:(NSRect)rect
  26 {
  27   [super drawRect:rect];
  28
  29   NSLayoutManager* layoutManager = [self layoutManager];
  30   NSUInteger i = 0, line = 1;
  31   while (i < [layoutManager numberOfGlyphs]) {
  32     NSRange fragRange;
  33     NSRect fragRect = [layoutManager lineFragmentRectForGlyphAtIndex:i
  34                                                       effectiveRange:&fragRange];
  35     if ([sourceView_ markedLine] == line) {
  36       fragRect = [self convertRect:fragRect fromView:self];
  37       fragRect.origin.x = rect.origin.x;  // Flush all the way to the edge.
  38       [[[NSColor redColor] colorWithAlphaComponent:0.25] set];
  39       [NSBezierPath fillRect:fragRect];
  40       break;
  41     }
  42
  43     i += fragRange.length;
  44     ++line;
  45   }
  46 }
  47
  48 @end