macosx/HBOutputPanelController.m

   1 /**
   2  * @file
   3  * @date 18.5.2007
   4  *
   5  * Implementation of class HBOutputPanelController.
   6  */
   7
   8 #import "HBOutputPanelController.h"
   9 #import "HBOutputRedirect.h"
  10
  11 /// Maximum amount of characters that can be shown in the view.
  12 #define TextStorageUpperSizeLimit 20000
  13
  14 /// When old output is removed, this is the amount of characters that will be
  15 /// left in outputTextStorage.
  16 #define TextStorageLowerSizeLimit 15000
  17
  18 @implementation HBOutputPanelController
  19
  20 /**
  21  * Initializes the object, creates outputTextStorage and starts redirection of stderr.
  22  */
  23 - (id)init
  24 {
  25         if (self = [super init])
  26         {
  27                 outputTextStorage = [[NSTextStorage alloc] init];
  28                 [[HBOutputRedirect stderrRedirect] addListener:self];
  29         }
  30         return self;
  31 }
  32
  33 /**
  34  * Stops redirection of stderr and releases resources.
  35  */
  36 - (void)dealloc
  37 {
  38         [[HBOutputRedirect stderrRedirect] removeListener:self];
  39         [outputTextStorage release];
  40         [outputPanel release];
  41         [super dealloc];
  42 }
  43
  44 /**
  45  * Loads output panel from OutputPanel.nib and shwos it.
  46  */
  47 - (IBAction)showOutputPanel:(id)sender
  48 {
  49         if (!outputPanel)
  50         {
  51                 BOOL loadSucceeded = [NSBundle loadNibNamed:@"OutputPanel" owner:self] && outputPanel;
  52                 NSAssert(loadSucceeded, @"Could not open nib file");
  53
  54                 [outputPanel setFrameAutosaveName:@"OutputPanelFrame"];
  55                 [[textView layoutManager] replaceTextStorage:outputTextStorage];
  56         }
  57
  58     [textView scrollRangeToVisible:NSMakeRange([outputTextStorage length], 0)];
  59         [outputPanel orderFront:nil];
  60 }
  61
  62 /**
  63  * Displays text received from HBOutputRedirect in the text view.
  64  */
  65 - (void)stderrRedirect:(NSString *)text
  66 {
  67         NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:text];
  68         [outputTextStorage appendAttributedString:attributedString];
  69         [attributedString release];
  70
  71         if ([outputTextStorage length] > TextStorageUpperSizeLimit)
  72                 [outputTextStorage deleteCharactersInRange:NSMakeRange(0, [outputTextStorage length] - TextStorageLowerSizeLimit)];
  73
  74     [textView scrollRangeToVisible:NSMakeRange([outputTextStorage length], 0)];
  75 }
  76
  77 /**
  78  * Clears the output window.
  79  */
  80 - (IBAction)clearOutput:(id)sender
  81 {
  82         [outputTextStorage deleteCharactersInRange:NSMakeRange(0, [outputTextStorage length])];
  83 }
  84
  85 /**
  86  * Copies all text in the output window to pasteboard.
  87  */
  88 - (IBAction)copyAllOutputToPasteboard:(id)sender
  89 {
  90         NSPasteboard *pboard = [NSPasteboard generalPasteboard];
  91         [pboard declareTypes:[NSArray arrayWithObject:NSStringPboardType] owner:nil];
  92         [pboard setString:[outputTextStorage string] forType:NSStringPboardType];
  93 }
  94
  95 @end