Source/BSLineNumberRulerView.h

   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 <Cocoa/Cocoa.h>
  18 #include <vector>
  19
  20 @class BSSourceView;
  21
  22 // The NSRulerView that draws line numbers on the BSSourceView. The design of
  23 // this class draws heavily on the work of Noodlesoft:
  24 //   http://www.noodlesoft.com/blog/2008/10/05/displaying-line-numbers-with-nstextview/
  25 // However, all code is original.
  26 @interface BSLineNumberRulerView : NSRulerView
  27 {
  28  @private
  29   BSSourceView* sourceView_;  // Weak, owns this.
  30
  31   // A vector (thus 0-based) map of line numbers (indices) to character indices
  32   // in the text storage.
  33   std::vector<NSUInteger> lineIndex_;
  34 }
  35
  36 // Designated initializer.
  37 - (id)initWithSourceView:(BSSourceView*)sourceView;
  38
  39 // Performs layout and redraws the line number view.
  40 - (void)performLayout;
  41
  42 // Returns the line number (1-based) at the given point. |point| should be in
  43 // the receiver's coordinate system.
  44 - (NSUInteger)lineNumberAtPoint:(NSPoint)point;
  45
  46 @end