Source/DebuggerWindowController.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2002 - 2007, 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 "DebuggerWindowController.h"
  18 #import "DebuggerConnection.h"
  19
  20 @interface DebuggerWindowController (Private)
  21
  22 - (void)updateSourceViewer;
  23
  24 @end
  25
  26 @implementation DebuggerWindowController
  27
  28 /**
  29  * Initializes the window controller and sets the connection
  30  */
  31 - (id)initWithConnection: (DebuggerConnection *)cnx
  32 {
  33         if (self = [super initWithWindowNibName: @"Debugger"])
  34         {
  35                 _connection = [cnx retain];
  36         }
  37         return self;
  38 }
  39
  40 /**
  41  * Before the display get's comfortable, set up the NSTextView to scroll horizontally
  42  */
  43 - (void)awakeFromNib
  44 {
  45         // set up the scroller for the source viewer
  46         [_sourceViewer setMaxSize: NSMakeSize(FLT_MAX, FLT_MAX)];
  47         [[_sourceViewer textContainer] setContainerSize: NSMakeSize(FLT_MAX, FLT_MAX)];
  48         [[_sourceViewer textContainer] setWidthTracksTextView: NO];
  49         [_sourceViewer setHorizontallyResizable: YES];
  50         [_sourceViewerScroller setHasHorizontalScroller: YES];
  51         [_sourceViewerScroller display];
  52 }
  53
  54 /**
  55  * Release object members
  56  */
  57 - (void)dealloc
  58 {
  59         [_connection release];
  60
  61         [super dealloc];
  62 }
  63
  64 /**
  65  * Sets the status and clears any error message
  66  */
  67 - (void)setStatus: (NSString *)status
  68 {
  69         [_error setHidden: YES];
  70         [_status setStringValue: status];
  71         [[self window] setTitle: [NSString stringWithFormat: @"GDBp @ %@:%d/%@", [_connection remoteHost], [_connection port], [_connection session]]];
  72 }
  73
  74 /**
  75  * Sets the status to be "Error" and then displays the error message
  76  */
  77 - (void)setError: (NSString *)error
  78 {
  79         [_error setStringValue: error];
  80         [self setStatus: @"Error"];
  81         [_error setHidden: NO];
  82 }
  83
  84 /**
  85  * Sets the root node element of the stacktrace
  86  */
  87 - (void)setStack: (NSArray *)stack
  88 {
  89         if (_stack != nil)
  90         {
  91                 [_stack release];
  92         }
  93
  94         _stack = stack;
  95         [_stack retain];
  96         [self updateSourceViewer];
  97 }
  98
  99 /**
 100  * Sets the stack root element so that the NSOutlineView can display it
 101  */
 102 - (void)setRegister: (NSXMLElement *)elm
 103 {
 104         if (_register != nil)
 105         {
 106                 [_register release];
 107         }
 108
 109         _register = elm;
 110         [_register retain];
 111 }
 112
 113 /**
 114  * Forwards the message to run script execution to the connection
 115  */
 116 - (IBAction)run: (id)sender
 117 {
 118         [_connection run];
 119 }
 120
 121 /**
 122  * Forwards the message to "step in" to the connection
 123  */
 124 - (IBAction)stepIn: (id)sender
 125 {
 126         [_connection stepIn];
 127 }
 128
 129 /**
 130 * Forwards the message to "step out" to the connection
 131  */
 132 - (IBAction)stepOut: (id)sender
 133 {
 134         [_connection stepOut];
 135 }
 136
 137 /**
 138 * Forwards the message to "step over" to the connection
 139  */
 140 - (IBAction)stepOver: (id)sender
 141 {
 142         [_connection stepOver];
 143 }
 144
 145 /**
 146  * NSTableView delegate method that informs the controller that the stack selection did change and that
 147  * we should update the source viewer
 148  */
 149 - (void)tableViewSelectionDidChange: (NSNotification *)notif
 150 {
 151         [self updateSourceViewer];
 152 }
 153 /**
 154  * Does the actual updating of the source viewer by reading in the file
 155  */
 156 - (void)updateSourceViewer
 157 {
 158         int selection = [_stackController selectionIndex];
 159         if (selection == NSNotFound)
 160         {
 161                 [_sourceViewer setString: @""];
 162                 return;
 163         }
 164
 165         // get the filename and then set the text
 166         NSString *filename = [[_stack objectAtIndex: selection] valueForKey: @"filename"];
 167         filename = [[NSURL URLWithString: filename] path];
 168         NSString *text = [NSString stringWithContentsOfFile: filename];
 169         [_sourceViewer setString: text];
 170
 171         // go through the document until we find the NSRange for the line we want
 172         int destination = [[[_stack objectAtIndex: selection] valueForKey: @"lineno"] intValue];
 173         int rangeIndex = 0;
 174         for (int line = 0; line < destination; line++)
 175         {
 176                 rangeIndex = NSMaxRange([text lineRangeForRange: NSMakeRange(rangeIndex, 0)]);
 177         }
 178
 179         // now get the true start/end markers for it
 180         unsigned lineStart, lineEnd;
 181         [text getLineStart: &lineStart end: NULL contentsEnd: &lineEnd forRange: NSMakeRange(rangeIndex - 1, 0)];
 182         NSRange lineRange = NSMakeRange(lineStart, lineEnd - lineStart);
 183
 184         // colorize it so the user knows which line we're on in the stack
 185         [[_sourceViewer textStorage] setAttributes: [NSDictionary dictionaryWithObjects: [NSArray arrayWithObjects: [NSColor redColor], [NSColor yellowColor], nil]
 186                                                                                                                                                          forKeys: [NSArray arrayWithObjects: NSForegroundColorAttributeName, NSBackgroundColorAttributeName, nil]]
 187                                                                                  range: lineRange];
 188         [_sourceViewer scrollRangeToVisible: [text lineRangeForRange: NSMakeRange(lineStart, lineEnd - lineStart)]];
 189
 190         // make sure the font stays Monaco
 191         [_sourceViewer setFont: [NSFont fontWithName: @"Monaco" size: 10.0]];
 192 }
 193
 194 @end