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     [breakpoints addObject:bp];
  79     [connection addBreakpoint:bp];
  80
  81     [savedBreakpoints addObject:[bp dictionary]];
  82     [[NSUserDefaults standardUserDefaults] setObject:savedBreakpoints forKey:kPrefBreakpoints];
  83
  84     [self updateDisplaysForFile:[bp file]];
  85   }
  86 }
  87
  88 /**
  89  * Removes a breakpoint at a given line/file combination, or nil if nothing was removed
  90  */
  91 - (Breakpoint*)removeBreakpointAt:(NSUInteger)line inFile:(NSString*)file
  92 {
  93   for (Breakpoint* b in breakpoints)
  94   {
  95     if ([b line] == line && [[b file] isEqualToString:file])
  96     {
  97       // Keep the breakpoint alive after it is removed from the breakpoints
  98       // array.
  99       [[b retain] autorelease];
 100
 101       [breakpoints removeObject:b];
 102       [connection removeBreakpoint:b];
 103
 104       [savedBreakpoints removeObject:[b dictionary]];
 105       [[NSUserDefaults standardUserDefaults] setObject:savedBreakpoints forKey:kPrefBreakpoints];
 106
 107       [self updateDisplaysForFile:file];
 108       return b;
 109     }
 110   }
 111   return nil;
 112 }
 113
 114 /**
 115  * Returns all the breakpoints for a given file
 116  */
 117 - (NSSet<NSNumber*>*)breakpointsForFile:(NSString*)file
 118 {
 119   NSMutableSet<NSNumber*>* matches = [NSMutableSet set];
 120   for (Breakpoint* b in breakpoints) {
 121     if ([b.file isEqualToString:file]) {
 122       [matches addObject:@(b.line)];
 123     }
 124   }
 125
 126   return matches;
 127 }
 128
 129 /**
 130  * Checks to see if a given file has a breakpoint on a given line
 131  */
 132 - (BOOL)hasBreakpointAt:(NSUInteger)line inFile:(NSString*)file
 133 {
 134   return [breakpoints containsObject:[[[Breakpoint alloc] initWithLine:line inFile:file] autorelease]];
 135 }
 136
 137 #pragma mark Private
 138
 139 /**
 140  * This marks BSSourceView needsDisplay, rearranges the objects in the breakpoints controller,
 141  * and sets the markers for the BSLineNumberView
 142  */
 143 - (void)updateDisplaysForFile:(NSString*)file
 144 {
 145   AppDelegate* appDel = [NSApp delegate];
 146   [[[appDel breakpoint] arrayController] rearrangeObjects];
 147   [[[appDel breakpoint] sourceView] setNeedsDisplay:YES];
 148   [[[appDel breakpoint] sourceView] setMarkers:[self breakpointsForFile:file]];
 149   [[[appDel debugger] sourceViewer] setNeedsDisplay:YES];
 150   [[[appDel debugger] sourceViewer] setMarkers:[self breakpointsForFile:file]];
 151 }
 152
 153 @end