Source/BreakpointManager.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 "BreakpointManager.h"
  18
  19 #import "AppDelegate.h"
  20 #import "PreferenceNames.h"
  21
  22 @interface BreakpointManager (Private)
  23 - (void)updateDisplaysForFile:(NSString*)file;
  24 @end
  25
  26 @implementation BreakpointManager
  27
  28 @synthesize breakpoints, connection;
  29
  30 /**
  31  * Initializer
  32  */
  33 - (id)init
  34 {
  35   if (self = [super init])
  36   {
  37     if (!breakpoints)
  38     {
  39       breakpoints = [[NSMutableArray alloc] init];
  40     }
  41
  42     savedBreakpoints = [[[NSUserDefaults standardUserDefaults] arrayForKey:kPrefBreakpoints] mutableCopy];
  43     if (savedBreakpoints)
  44     {
  45       for (NSDictionary* d in savedBreakpoints)
  46       {
  47         [breakpoints addObject:[[[Breakpoint alloc] initWithDictionary:d] autorelease]];
  48       }
  49     }
  50     else
  51     {
  52       savedBreakpoints = [NSMutableArray new];
  53     }
  54   }
  55   return self;
  56 }
  57
  58 /**
  59  * Returns the shared manager (singleton)
  60  */
  61 + (BreakpointManager*)sharedManager
  62 {
  63   static BreakpointManager* manager;
  64   if (!manager)
  65   {
  66     manager = [[BreakpointManager alloc] init];
  67   }
  68   return manager;
  69 }
  70
  71 /**
  72  * Registers a breakpoint at a given line
  73  */
  74 - (void)addBreakpoint:(Breakpoint*)bp;
  75 {
  76   if (![breakpoints containsObject:bp])
  77   {
  78     [self willChangeValueForKey:@"breakpoints"];
  79     [breakpoints addObject:bp];
  80     [self didChangeValueForKey:@"breakpoints"];
  81
  82     [connection addBreakpoint:bp];
  83
  84     [savedBreakpoints addObject:[bp dictionary]];
  85     [[NSUserDefaults standardUserDefaults] setObject:savedBreakpoints forKey:kPrefBreakpoints];
  86
  87     [self updateDisplaysForFile:[bp file]];
  88   }
  89 }
  90
  91 /**
  92  * Removes a breakpoint at a given line/file combination, or nil if nothing was removed
  93  */
  94 - (Breakpoint*)removeBreakpointAt:(NSUInteger)line inFile:(NSString*)file
  95 {
  96   for (Breakpoint* b in breakpoints)
  97   {
  98     if ([b line] == line && [[b file] isEqualToString:file])
  99     {
 100       // Keep the breakpoint alive after it is removed from the breakpoints
 101       // array.
 102       [[b retain] autorelease];
 103
 104       [self willChangeValueForKey:@"breakpoints"];
 105       [breakpoints removeObject:b];
 106       [self didChangeValueForKey:@"breakpoints"];
 107
 108       [connection removeBreakpoint:b];
 109
 110       [savedBreakpoints removeObject:[b dictionary]];
 111       [[NSUserDefaults standardUserDefaults] setObject:savedBreakpoints forKey:kPrefBreakpoints];
 112
 113       [self updateDisplaysForFile:file];
 114       return b;
 115     }
 116   }
 117   return nil;
 118 }
 119
 120 /**
 121  * Returns all the breakpoints for a given file
 122  */
 123 - (NSSet<NSNumber*>*)breakpointsForFile:(NSString*)file
 124 {
 125   NSMutableSet<NSNumber*>* matches = [NSMutableSet set];
 126   for (Breakpoint* b in breakpoints) {
 127     if ([b.file isEqualToString:file]) {
 128       [matches addObject:@(b.line)];
 129     }
 130   }
 131
 132   return matches;
 133 }
 134
 135 /**
 136  * Checks to see if a given file has a breakpoint on a given line
 137  */
 138 - (BOOL)hasBreakpointAt:(NSUInteger)line inFile:(NSString*)file
 139 {
 140   return [breakpoints containsObject:[[[Breakpoint alloc] initWithLine:line inFile:file] autorelease]];
 141 }
 142
 143 #pragma mark Private
 144
 145 /**
 146  * This marks BSSourceView needsDisplay, rearranges the objects in the breakpoints controller,
 147  * and sets the markers for the BSLineNumberView
 148  */
 149 - (void)updateDisplaysForFile:(NSString*)file
 150 {
 151   AppDelegate* appDel = [NSApp delegate];
 152   [[[appDel breakpoint] arrayController] rearrangeObjects];
 153   [[[appDel debugger] sourceViewer] setNeedsDisplay:YES];
 154   [[[appDel debugger] sourceViewer] setMarkers:[self breakpointsForFile:file]];
 155 }
 156
 157 @end