Sunny's Dev

Copy into register 1:

1. select range
2. M-x copy-to-register
3. 1

Paste from register 1:

1. M-x insert-register
2. 1

View the contents of a register

1. M-x view-register
2. 1

Register names can be single letters, numbers, characters. Upper and lower case are distinct.

// Based on Foley and van Dam algorithm.
void ConvertHSLToRGB (const CGFloat *hslComponents, CGFloat *rgbComponents) {
    CGFloat hue = hslComponents[0];
    CGFloat saturation = hslComponents[1];
    CGFloat lightness = hslComponents[2];

    CGFloat temp1, temp2;
    CGFloat rgb[3];  // "temp3"

    if (saturation == 0) {
        // Like totally gray man.
        rgb[0] = rgb[1] = rgb[2] = lightness;

    } else {
        if (lightness < 0.5) temp2 = lightness * (1.0 + saturation);
        else                 temp2 = (lightness + saturation) - (lightness * saturation);

        temp1 = (lightness * 2.0) - temp2;

        // Convert hue to 0..1
        hue /= 360.0;

        // Use the rgb array as workspace for our "temp3"s
        rgb[0] = hue + (1.0 / 3.0);
        rgb[1] = hue;
        rgb[2] = hue - (1.0 / 3.0);

        // Magic
        for (int i = 0; i < 3; i++) {
            if (rgb[i] < 0.0)        rgb[i] += 1.0;
            else if (rgb[i] > 1.0)   rgb[i] -= 1.0;

            if (6.0 * rgb[i] < 1.0)      rgb[i] = temp1 + ((temp2 - temp1)
                                                           * 6.0 * rgb[i]);
            else if (2.0 * rgb[i] < 1.0) rgb[i] = temp2;
            else if (3.0 * rgb[i] < 2.0) rgb[i] = temp1 + ((temp2 - temp1)
                                                       * ((2.0 / 3.0) - rgb[i]) * 6.0);
            else                         rgb[i] = temp1;
        }
    }

    // Clamp to 0..1 and put into the return pile.
    for (int i = 0; i < 3; i++) {
        rgbComponents[i] = MAX (0.0, MIN (1.0, rgb[i]));
    }

} // ConvertHSLToRGB

// Based on Foley and van Dam algorithm.
void ConvertRGBToHSL (const CGFloat *rgbComponents, CGFloat *hslComponents) {
    CGFloat red = rgbComponents[0];
    CGFloat green = rgbComponents[1];
    CGFloat blue = rgbComponents[2];

    CGFloat maxColor = MAX (red, MAX (green, blue));
    CGFloat minColor = MIN (red, MIN (green, blue));
    CGFloat deltaColor = maxColor - minColor;

    CGFloat hue, saturation;
    CGFloat lightness =  (maxColor + minColor) / 2.0;

    // All the same means a gray color.
    if (maxColor == minColor) {
        saturation = 0.0;
        hue = 0.0;  // officially undefined with gray, but go ahead and zero out.

    } else {
        if (lightness < 0.5) saturation = deltaColor / (maxColor + minColor);
        else                 saturation = deltaColor / (2.0 - deltaColor);

        if (red == maxColor)        hue = (green - blue) / deltaColor;
        else if (green == maxColor) hue = 2.0 + (blue - red) / deltaColor;
        else                        hue = 4.0 + (red - green) / deltaColor;

        // H will be in the range of 0..6, convert to degrees.
        hue *= 60.0;

        // Convert to positive angle.
        if (hue < 0) hue += 360.0;
    }

    // Clamp to legal values.
    hslComponents[0] = MAX (0.0, MIN (360.0, hue));
    hslComponents[1] = MAX (0.0, MIN (1.0, saturation));
    hslComponents[2] = MAX (0.0, MIN (1.0, lightness));

} // ConvertRGBToHSL

- (void) drawGradientInRect: (CGRect) rect
                 colorSpace: (CGColorSpaceRef) colorSpcae
                    context: (CGContextRef) context {
    CGFloat startComponents[4] = { 254.0 / 255.0, 254.0 / 255.0, 254.0 / 255.0, 1.0 };
    CGFloat endComponents[4] = { 206.0 / 255.0, 206.0 / 255.0, 206.0 / 255.0, 1.0 };
    CGColorRef startColor = CGColorCreate (colorSpace, startComponents);
    CGColorRef endColor = CGColorCreate (colorSpace, endComponents);

    NSArray *array = [NSArray arrayWithObjects: (id)startColor, (id)endColor, nil];

    CGGradientRef gradient = CGGradientCreateWithColors (colorSpace,
                                                         (CFArrayRef)array, NULL);
    CGPoint endPoint = rect.origin;
    endPoint.y += rect.size.height;

    // Don't let the gradient bleed all over everything
    CGContextSaveGState (context); {
        CGContextClipToRect (context, rect);
        CGContextDrawLinearGradient (context, gradient, rect.origin, endPoint, 0);
    } CGContextRestoreGState (context);

    CGGradientRelease (gradient);
    CGColorRelease (startColor);
    CGColorRelease (endColor);

} // drawGradientInRect

- (NSUInteger) countWords: (NSString *) string {
    NSScanner *scanner = [NSScanner scannerWithString: string];
    NSCharacterSet *whiteSpace = [NSCharacterSet whitespaceAndNewlineCharacterSet];

    NSUInteger count = 0;
    while ([scanner scanUpToCharactersFromSet: whiteSpace  intoString: nil]) {
        count++;
    }

    return count;

} // countWords

    NSPredicate *hasZone = [NSPredicate predicateWithBlock:
                                            ^BOOL (id obj, NSDictionary *bindings) {
            GRProfileCueTime *cueTime = obj;
            return cueTime.cue.targetHeartZone != kZoneNone;
        }];
    NSArray *justZones = [cues filteredArrayUsingPredicate: hasZone];

If this kind of stuff is useful for you, you might want to check out Mike Ash's collection utilities.

    UIBarButtonItem *backButton =
        [[UIBarButtonItem alloc] initWithTitle: @"Back"
                                 style: UIBarButtonItemStyleBordered
                                 target: nil
                                 action: nil];
    self.navigationItem.backBarButtonItem = backButton;
    [backButton release];

- (void) drawText: (NSString *) text
   centeredInRect: (CGRect) rect
             font: (UIFont *) font {
    CGSize textSize = [text sizeWithFont: font
                            constrainedToSize: rect.size
                            lineBreakMode: UILineBreakModeWordWrap];

    // Center text rect inside of |rect|.
    CGRect textRect = CGRectMake (CGRectGetMidX(rect) - textSize.width / 2.0,
                                  CGRectGetMidY(rect) - textSize.height / 2.0,
                                  textSize.width, textSize.height);

    [text drawInRect: textRect
          withFont: font
          lineBreakMode: UILineBreakModeWordWrap
          alignment: UITextAlignmentCenter];

} // drawText

- (void) touchesEnded: (NSSet *) touches  withEvent: (UIEvent *) event {
    UITouch *touch = [touches anyObject];
    CGPoint point = [touch locationInView: self];
    if (CGRectContainsPoint(self.bounds, point)) {
        NSLog (@"YAY!");
    }

} // touchesEnded

- (CGPathRef) newPathForRoundRect: (CGRect) rect
                        radius: (CGFloat) radius
                   strokeWidth: (CGFloat) strokeWidth {

    // Fit the stroked path inside the rectangle.
    rect.size.height -= strokeWidth;
    rect.size.width -= strokeWidth;
    rect.origin.x += strokeWidth / 2.0;
    rect.origin.y += strokeWidth / 2.0;

    CGMutablePathRef path = CGPathCreateMutable();

    // The inner rect size gives us X/Y/W/H values for the parts of the rect
    // that aren't on the curve.
    CGRect innerRect = CGRectInset(rect, radius, radius);

    CGFloat insideRight = innerRect.origin.x + innerRect.size.width;
    CGFloat outsideRight = rect.origin.x + rect.size.width;
    CGFloat insideBottom = innerRect.origin.y + innerRect.size.height;
    CGFloat outsideBottom = rect.origin.y + rect.size.height;

    CGFloat insideTop = innerRect.origin.y;
    CGFloat outsideTop = rect.origin.y;
    CGFloat outsideLeft = rect.origin.x;

    CGPathMoveToPoint (path, NULL, innerRect.origin.x, outsideTop);

    CGPathAddLineToPoint (path, NULL, insideRight, outsideTop);
    CGPathAddArcToPoint (path, NULL, outsideRight, outsideTop,
                         outsideRight, insideTop, radius);

    CGPathAddLineToPoint (path, NULL, outsideRight, insideBottom);
    CGPathAddArcToPoint (path, NULL,  outsideRight, outsideBottom,
                         insideRight, outsideBottom, radius);

    CGPathAddLineToPoint (path, NULL, innerRect.origin.x, outsideBottom);
    CGPathAddArcToPoint (path, NULL,  outsideLeft, outsideBottom,
                         outsideLeft, insideBottom, radius);

    CGPathAddLineToPoint (path, NULL, outsideLeft, insideTop);
    CGPathAddArcToPoint (path, NULL,  outsideLeft, outsideTop,
                         innerRect.origin.x, outsideTop, radius);

    CGPathCloseSubpath (path);

    return path;

} // newPathForRoundRect

        _timeIndicatorImage = [[[UIImage imageNamed: @"ride-profile-time-indicator"]
                                  stretchableImageWithLeftCapWidth: 0.0
                                  topCapHeight: 1.0] retain];

- (void) drawTimeIndicatorInRect: (CGRect) rect {
    CGFloat timeFraction = _time / _totalDuration;

    CGFloat x = [self horizontalPositionForTimeFraction: timeFraction];

    CGRect indicatorRect = CGRectMake (x, 0, 3.0, rect.size.height);
    [_timeIndicatorImage drawInRect: indicatorRect];

} // drawTimeIndicatorInRect

- (void) layoutSubviews {

    // skootch stuff over
    if (self.editing && !self.showingDeleteConfirmation) {
#define MARGIN 40.0
        CGRect frame = CGRectMake (MARGIN + 4.0, 4.0, 70.0, 46.0);
        _profileView.frame = frame;

        frame = CGRectMake (MARGIN + 80.0, 0, 240.0 - MARGIN, 55.0);
        _titleLabel.frame = frame;

    // layout normally
    } else {
        CGRect frame = CGRectMake (4.0, 4.0, 70.0, 46.0);
        _profileView.frame = frame;

        frame = CGRectMake (80.0, 0, 240.0, 55.0);
        _titleLabel.frame = frame;
    }

    [super layoutSubviews];
} // layoutSubviews

    NSURL *url = [NSURL URLWithString: @"http://cuteoverload.com/2006/09/12/xtreme_gluttony/"];
    [[UIApplication sharedApplication] openURL: url];

    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
    if (indexPath != nil) [self doStuff];

- (void) drawRect: (CGRect) rect {
    NSString *string = @"132";

    CGContextRef ctx = UIGraphicsGetCurrentContext ();

    CGContextTranslateCTM (ctx, 0.0, self.bounds.size.height);
    CGContextScaleCTM (ctx, 1.0, -1.0);

    CGContextSelectFont (ctx, "Helvetica-Bold", 48.0, kCGEncodingMacRoman);
    CGContextSetTextDrawingMode (ctx, kCGTextFillStroke);

    // Draw a background to see the text on.
    CGContextSetFillColorWithColor (ctx, [[UIColor yellowColor] CGColor]);
    CGContextFillRect (ctx, self.bounds);

    CGContextSetFillColorWithColor (ctx, [[UIColor blackColor] CGColor]);
    CGContextSetStrokeColorWithColor (ctx, [[UIColor whiteColor] CGColor]);

    CGContextSetLineWidth (ctx, 2);
    CGContextSetShadow (ctx, CGSizeMake (3.0, 3.0), 2.5);
    CGContextShowTextAtPoint (ctx, 50, 50, [string UTF8String], string.length);

} // drawRect

#import <AudioToolbox/AudioToolbox.h>
...
- (NSTimeInterval) voiceCueLength {
    NSTimeInterval length = 0.0;
    NSURL *audioURL = [NSURL fileURLWithPath: self.pathToVoiceCue];

    OSStatus result = noErr;

    AudioFileID audioFile = NULL;
    result = AudioFileOpenURL ((CFURLRef)audioURL,
                               kAudioFileReadPermission,
                               0, // hint
                               &audioFile);
    if (result != noErr) goto bailout;

    //Get file length
    NSTimeInterval seconds;
    UInt32 propertySize = sizeof (seconds);
    result = AudioFileGetProperty (audioFile,
                                   kAudioFilePropertyEstimatedDuration,
                                   &propertySize,
                                   &seconds);
    if (result != noErr) goto bailout;

    length = seconds;

  bailout:
    if (audioFile) AudioFileClose (audioFile);
    return length;
} // voiceCueLength

CFUUIDRef cfuuid = CFUUIDCreate (kCFAllocatorDefault);
NSString *uuid = (NSString *)CFUUIDCreateString (kCFAllocatorDefault, cfuuid);
CFRelease (cfuuid);

[_rejectButton setTitle: @"My Spoon is Too Big"  forState: UIControlStateNormal];

BOOL haveSecondScreen = [UIScreen screens].count > 1;

if (haveSecondScreen) {
    UIScreen *screen = [[UIScreen screens] objectAtIndex: 1];

    // Figure out the largest screen mode we can use.
    CGSize max = CGSizeMake (0.0, 0.0);
    UIScreenMode *maxScreenMode = nil;
    for (UIScreenMode *mode in [screen availableModes]) {
        if (mode.size.width * mode.size.height > max.width * max.height) {
            max = mode.size;
            maxScreenMode = mode;
        }
    }
    screen.currentMode = maxScreenMode;

    UIView *view = [[UIView alloc] initWithFrame: screen.bounds];
    view.backgroundColor = [UIColor greenColor];

    UIWindow *window = [[UIWindow alloc] init];
    window.screen = screen;
    [window addSubview: view];
    window.hidden = NO;

    [view release];
    // Stash |window| into an ivar or something.
}

    UITapGestureRecognizer *singleTap =
        [[UITapGestureRecognizer alloc] initWithTarget: self
                                        action: @selector(startStop:)];
    singleTap.numberOfTapsRequired = 1;
    singleTap.numberOfTouchesRequired = 1;
    [self addGestureRecognizer: singleTap];

    UITapGestureRecognizer *doubleTap =
        [[UITapGestureRecognizer alloc] initWithTarget: self
                                        action: @selector(resetTimer:)];
    doubleTap.numberOfTapsRequired = 2;
    doubleTap.numberOfTouchesRequired = 1;
    [self addGestureRecognizer: doubleTap];

    [singleTap requireGestureRecognizerToFail: doubleTap];

    [singleTap release];
    [doubleTap release];

    UIBarButtonItem *addButton  =
        [[UIBarButtonItem alloc]
            initWithBarButtonSystemItem: UIBarButtonSystemItemAdd
            target: self
            action: @selector(addNewSegment)];
    self.navigationItem.rightBarButtonItem = addButton;
    [addButton release];

cell.textLabel.backgroundColor = [UIColor redColor];
cell.contentView.backgroundColor = [UIColor redColor];

Or you can hack it by setting the cell's indent to 1. That scoots the whole cell contents over by 10 pixels, letting you miss the rounded corners. Really handy if you're prototyping, want something to look non-horrible, but don't want to go the full-blown correct solution.

   UIImage *image = [_assets iconAtIndex: indexPath.row];
    if (image) cell.imageView.image = image;

+ (void) initialize {
    static dispatch_once_t init_predicate;

    dispatch_once (&init_predicate, ^{ 
            CGColorSpaceRef rgbSpace = CGColorSpaceCreateDeviceRGB ();

            for (int i = 0; i < 7; i++) {
                CGFloat components[] = { rawZoneColors[i]._red,
                                         rawZoneColors[i]._green,
                                         rawZoneColors[i]._blue,
                                         rawZoneColors[i]._alpha };
                zoneColors[i] = CGColorCreate (rgbSpace, components);
            }
        });

} // initialize

typedef CGRect (^GroovyBlock)(NSInteger spoon, NSString *waffle);

    UITapGestureRecognizer *tap =
        [[UITapGestureRecognizer alloc] initWithTarget: self
                                        action: @selector(twoByThreeTap:)];
    tap.numberOfTapsRequired = 2;
    tap.numberOfTouchesRequired = 3;
    [self addGestureRecognizer: tap];
    [tap release];

    // So we can get the taps.
    self.userInteractionEnabled = YES;
    self.multipleTouchEnabled = YES;

- (IBAction) openEarthinizerDoc: (id) sender {
    NSOpenPanel *panel = [NSOpenPanel openPanel];

    [panel beginSheetModalForWindow: self.window
           completionHandler: ^(NSInteger result) {
            if (result == NSFileHandlingPanelOKButton) {
                NSURL *url = [[panel URLs] objectAtIndex: 0];
                [self openURL: url];
            }
        }];

} // openEarthinizerDoc

    NSMutableArray *altitudes = [NSMutableArray array];
    NSString *altitudeString = [self altitudeStringFromGoogle: coords];

    [altitudeString enumerateLinesUsingBlock: ^(NSString *line, BOOL *stop) {
            float value = [line floatValue];
            [altitudes addObject: [NSNumber numberWithFloat: value]];
        }];

/Library/WebServer/Documents

The UIApplication itemTimerDisabled controls whether the screen should dim. Disable it by enabling it:

[[UIApplication sharedApplication] setIdleTimerDisabled: YES];

[UIApplication sharedApplication].idleTimerDisabled = YES;

Unfortunately, this is not a reliable operation. Sometimes twiddling a UI control or playing music will let the screen dim and lock up. What I ended up doing is toggling the value in a timer:

[[UIApplication sharedApplication] setIdleTimerDisabled: NO];
[[UIApplication sharedApplication] setIdleTimerDisabled: YES];

    NSIndexPath *indexPath = [NSIndexPath indexPathForRow: row
                                          inSection: 0];

       NSIndexPath *indexPath = [NSIndexPath indexPathForRow: row
                                              inSection: 0];
        NSArray *array = [NSArray arrayWithObject: indexPath];
        [_playlistTableView reloadRowsAtIndexPaths: array
                            withRowAnimation: UITableViewRowAnimationNone];

    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
    [center removeObserver: self];

    if (someProperty) cell.textLabel.textColor = [UIColor grayColor];
    else cell.textLabel.textColor = [UIColor blackColor];

Make the cell with UITableViewCellStyleSubtitle:

        cell = [[[UITableViewCell alloc]
                    initWithStyle: UITableViewCellStyleSubtitle
                    reuseIdentifier: @"UITableViewCell"] autorelease];

    cell.textLabel.text = @"somewhere";
    cell.detailTextLabel.text = @"over the rainbow";

And then override these. In this case, I split up an array into an array of arrays, each sub-array being the contents of a section that corresponds to a string to display in the index. _tableIndex is an array of strings for display of the index.

- (NSArray *) sectionIndexTitlesForTableView: (UITableView *) tableView {
    return _tableIndex;
} // sectionIndexTitles


- (NSInteger) tableView: (UITableView *) tableView
sectionForSectionIndexTitle: (NSString *) title
                atIndex: (NSInteger) index {
    return index;
} // sectionForSectionIndexTitle

    NSIndexPath *someRow = [NSIndexPath indexPathForRow: random() % blah.count
					inSection: 0];
    [self.cuesTableView scrollToRowAtIndexPath: someRow
         atScrollPosition: UITableViewScrollPositionBottom
         animated: YES];

- (BOOL) isEqual: (id) object;
- (NSUInteger) hash;

- (BOOL) tableView: (UITableView *) tableView
  canMoveRowAtIndexPath: (NSIndexPath *) indexPath {

    if (indexPath.row == 0) return NO;
    else if (indexPath.row == _cues.count - 1) return NO;
    else return YES;

} // canMoveRowAtIndexPath

- (NSIndexPath *) tableView: (UITableView *) tableView
targetIndexPathForMoveFromRowAtIndexPath: (NSIndexPath *) source
        toProposedIndexPath: (NSIndexPath *) destination {

    if (destination.row > 0 && destination.row < _cues.count - 1) {
        // No violence necessary.
        return destination;
    }

    NSIndexPath *indexPath = nil;

    // If your table can have <= 2 items, you might want to robusticize the index math.
    if (destination.row == 0) {
        indexPath = [NSIndexPath indexPathForRow: 1  inSection: 0];
    } else {
        indexPath = [NSIndexPath indexPathForRow: _cues.count - 2
                                 inSection: 0];
    }

    return indexPath;

} // targetIndexPathForMoveFromRowAtIndexPathPleaseOHaiThanksForMovingKthxBai

- (void) tableView: (UITableView *) tableView
commitEditingStyle: (UITableViewCellEditingStyle) editingStyle
 forRowAtIndexPath: (NSIndexPath *) indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        [_cues removeObjectAtIndex: indexPath.row];  // manipulate your data structure.
        [tableView deleteRowsAtIndexPaths: [NSArray arrayWithObject: indexPath]
                   withRowAnimation: UITableViewRowAnimationFade];
        [self updateUI];  // Do whatever other UI updating you need to do.
    }
} // commitEditingStyle

    [self.cuesTableView setEditing: YES  animated: YES];

- (void) tableView: (UITableView *) tableView
moveRowAtIndexPath: (NSIndexPath *) from
       toIndexPath: (NSIndexPath *) to {
    // How to rearrange stuff if you're backed by an NSMutableArray:
    GRCue *cue = [_cues objectAtIndex: from.row];
    [cue retain];  // Let it survive being removed from the array.
    [_cues removeObjectAtIndex: from.row];
    [_cues insertObject: cue  atIndex: to.row];
    [cue release];

} // moveRowAtIndexPath

// Are we compiling for the device, simulator, or desktop?
#if TARGET_OS_IPHONE && TARGET_IPHONE_SIMULATOR
#define GR_TARGET_SIMULATOR 1

#elif TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
#define GR_TARGET_DEVICE 1

#else
#define GR_TARGET_DESKTOP 1

#endif

    [_durationPicker selectRow: row
                     inComponent: 0
                     animated: NO];

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView

- (NSInteger) pickerView: (UIPickerView *) picker
 numberOfRowsInComponent: (NSInteger) component

- (NSString *) pickerView: (UIPickerView *) picker
              titleForRow: (NSInteger) row
             forComponent: (NSInteger) component

- (void) pickerView: (UIPickerView *) picker
       didSelectRow: (NSInteger) row
        inComponent: (NSInteger) component

- (void)tableView: (UITableView *) tableView
    didSelectRowAtIndexPath: (NSIndexPath *) indexPath {

    // might want someone to know what the user picked.
    [_delegate kindChooser: self
               choseWorkoutType: mapRowToWorkoutType(indexPath.row)];

    // pop ourselves off the stack.
    [self.navigationController popViewControllerAnimated: YES];

} // didSelectRowAtIndexPath

- (IBAction) elaborateType: (id) sender {
    if (![sender isKindOfClass: [UIButton class]]) return;  // be paranoid

    UITableViewCell *cell = (UITableViewCell *)[sender superview];
    if (![cell isKindOfClass: [UITableViewCell class]]) return;  // be paranoid

    NSIndexPath *indexPath = [self.kindPickerTableView indexPathForCell: cell];

    // do something with indexPath.row and/or indexPath.section.

} // elaborateType

    GRChooseRideKindViewController *chooseKind =
        [[GRChooseRideKindViewController alloc] init];

    [self.navigationController pushViewController: chooseKind
         animated: YES];

    [chooseKind release];

UITableViewCell *cell = ...;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

Use UITableViewCellAccessoryCheckmark for a checkmark.

Use UITableViewCellAccessoryNone to remove the checkmark.

    UIBarButtonItem *cancelButton =
	[[UIBarButtonItem alloc] initWithTitle: @"Cancel"
                                 style: UIBarButtonItemStylePlain
                                 target: self
                                 action: @selector(cancel:)];
    self.navigationItem.rightBarButtonItem = cancelButton;
    [cancelButton release];

    self.navigationItem.hidesBackButton = YES;

- (void) navigationController: (UINavigationController *) navigationController
       willShowViewController: (UIViewController *) viewController
                     animated: (BOOL) animated {
    if (viewController == _menuController) {
        [_navigationController setNavigationBarHidden: YES
                               animated: YES];
    }
} // willShowViewController

% svn add bunnies@2x.png
svn: warning: 'bunnies' not found
% svn add bunnies@2x.png@
A         bunnies@2x.png

    #import "CJSONDeserializer.h"

    NSData *jsonData = [NSData dataWithContentsOfFile: path]; // or from network, or whatever
    NSError *error;
    NSArray *playlists =
        [[CJSONDeserializer deserializer] deserializeAsArray: jsonData
                                          error: &error];

    #import "CJSONSerializer.h"

    NSArray *allSongs = [self allSongs];
    NSString *jsonString = [[CJSONSerializer serializer] serializeObject: allSongs];
    NSData *data = [jsonString dataUsingEncoding: NSUTF8StringEncoding];
    // write |data| to a file, send over the network, etc

- (void) drawLabel: (NSString *) label
           atPoint: (NSPoint) point
              bold: (BOOL) bold {
    NSMutableDictionary *attributes = [NSMutableDictionary dictionary];
    NSFont *currentFont = [NSFont userFontOfSize: 14.0];

    if (bold) {
	NSFontManager *fm = [NSFontManager sharedFontManager];
	NSFont *boldFont = [fm convertFont: currentFont
                               toHaveTrait: NSBoldFontMask];
	[attributes setObject: boldFont
                    forKey: NSFontAttributeName];
    } else {
	[attributes setObject: currentFont
                    forKey: NSFontAttributeName];
    }

    [label drawAtPoint: point  withAttributes: attributes];;

} // drawLabel

Quicktime X's player doesn't have an A/V controls window, but you can option-click the fast-forward button to increase the speed by 0.1x. Keep clicking to go faster. Unfortunately you can't pause when sped up, so if you pause, you have to re-click to your desired speedup.

(lldb) set env-vars OOP=ack BORK=greeble

(gdb) x /80xb attrBuffer

0x7fff5fbfeeb0: 0x14    0x00    0x00    0x00    0xdb    0x0b    0x19    0x4c
0x7fff5fbfeeb8: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
0x7fff5fbfeec0: 0x00    0x00    0x00    0x00    0xec    0xc8    0x62    0xe5
0x7fff5fbfeec8: 0xc7    0x48    0x18    0xd2    0xe7    0x9e    0x88    0xd8
0x7fff5fbfeed0: 0xd9    0x60    0x9f    0x61    0xea    0x37    0x3b    0x0c
0x7fff5fbfeed8: 0x87    0x1b    0x4e    0x7e    0x6a    0x26    0x98    0x62
0x7fff5fbfeee0: 0x6d    0x01    0xed    0xed    0x17    0x6d    0xae    0x05
0x7fff5fbfeee8: 0xe7    0x22    0xd0    0x96    0x33    0x34    0x16    0x1a
0x7fff5fbfeef0: 0x17    0xa7    0x87    0xb2    0x76    0x7b    0x29    0x0b
0x7fff5fbfeef8: 0xea    0x51    0x4c    0x45    0x4f    0x45    0x65    0x88

% sdef /Applications/iTunes.app | sdp -fh --basename iTunes

hooverLayer.transform = CATransform3DRotate(CATransform3DIdentity,
                                            90.0 * M_PI / 180.0,
                                            0.0f, 0.0f, 1.0f);

- (void)tableView: (UITableView *) tableView
    didSelectRowAtIndexPath: (NSIndexPath *) indexPath {
    // Do something logical with indexPath.row, etc.
} // didSelectRowAtIndexPath

    NSIndexPath *indexPath = [NSIndexPath indexPathForRow: index
                                          inSection: 0];
    [self.tableView reloadData];  // necessary if selecting row in -viewDidLoad

    [self.tableView selectRowAtIndexPath: indexPath
                    animated: YES
                    scrollPosition: UITableViewScrollPositionNone];

    [playButton addTarget: self
                action: @selector(play)
                forControlEvents: UIControlEventTouchUpInside];

// Optional
- (NSInteger) numberOfSectionsInTableView: (UITableView *) tableView {
    return 1;
} // numberOfSectionsInTableView


- (NSInteger) tableView: (UITableView *) tableView
  numberOfRowsInSection: (NSInteger) section {
    return dataArray.count;
} // numberOfRowsInSection


- (UITableViewCell *) tableView: (UITableView *) tableView
          cellForRowAtIndexPath: (NSIndexPath *) indexPath {

    UITableViewCell *cell =
        [tableView dequeueReusableCellWithIdentifier: @"BlahTableViewCell"];

    if (!cell) {
        cell = [[UITableViewCell alloc]
                   initWithStyle: UITableViewCellStyleDefault
                   reuseIdentifier: @"BlahTableViewCell"];
        [cell autorelease];
    }

    cell.textLabel.text = [dataArray objectAtIndex: indexPath.row];

    return cell;

} // cellForRowAtIndexPath

@implementation BlahViewController

- (id) init {
    if ((self = [super initWithNibName: @"BlahViewController"
                       bundle: nil])) {
        // other initialization
    }
    return self;
} // init


- (id) initWithNibName: (NSString *) nibNameOrNil
                bundle: (NSBundle *) nibBundleOrNil {
    return [self init];
} // initWithNibName

    UIAlertView *alert =
        [[UIAlertView alloc] initWithTitle: @"Some Title"
                             message: @"You look very nice today."
                             delegate: self
                             cancelButtonTitle: @"OK"
                             otherButtonTitles: nil];
    [alert show];
    [alert release];

- (void) alertView: (UIAlertView *) alertView
    clickedButtonAtIndex: (NSInteger) buttonIndex {
    NSLog(@"foobage! %d", buttonIndex);
} // clickedButtonAtIndex

• Have an NSArray somewhere that you want to supply the popup
• Make an NSArrayController in the nib file (say call it "greeble"), and binds its Value to some keypath (such as your AppDelegate.greebleArray ivar)
• Bind the popup's Content to the array controller's arranged objects (greeble.arrangedObjects). These are the objects that are behind the popup.
• Bind the popup's Content Values to a key path that includes a displayable string. Assuming the objets in the greebleArray array have a title property, you'd bind it to greeble.arrangedObjects.title
• Bind the popup's Selected Object to something, such as an ivar of the type of object that's in the greebleArray. If said ivar is called selectedGreeble, you'd bind to AppDelegate's selectedGreeble.

@interface FSContinousTextField : NSTextField
@end

@implementation FSContinousTextField

- (void) textDidChange: (NSNotification *) aNotification {
	[[self target] performSelector:[self action] withObject:self];
}

@end

Here's how Jens cast out that demon. It's two different edits:

To make the TOC section (left side bar) of the developer documentation default to be hidden, do as follows:

Before you begin, make the two files and their parent-folders writable.

In the file....

/Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Resources/CSS/frameset_styles.css

...change the line...

#bodyText { margin-left: 210px; }

...to read...

#bodyText { /* margin-left: 210px; */ margin-left:10px; /* TOC-FIX */ }

...And in the file...

/Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Resources/JavaScript/page.js

...add the following somewhere in initialize_page() function, for instance at the bottom, right before the closing brace...

showHideTOC('hide'); // TOC-FIX

...now you have a much better view!!

Note that you'll need to apply this patch when the docs get upgraded.

Note that thiscode

NSDate *xsdDateTimeToNSDate (NSString *dateTime) {
    static NSDateFormatter *xsdDateTimeFormatter;
    if (!xsdDateTimeFormatter) {
        xsdDateTimeFormatter = [[NSDateFormatter alloc] init];  // Keep around forever
        xsdDateTimeFormatter.timeStyle = NSDateFormatterFullStyle;
        xsdDateTimeFormatter.dateFormat = @"yyyy-MM-dd'T'HH:mm:sszzz";
    }

    // Date formatters don't grok a single trailing Z, so make it "GMT".
    if ([dateTime hasSuffix: @"Z"]) {
        dateTime = [[dateTime substringToIndex: dateTime.length - 1]
                       stringByAppendingString: @"GMT"];
    }

    NSDate *date = [xsdDateTimeFormatter dateFromString: dateTime];
    if (!date) NSLog(@"could not parse date '%@'", dateTime);

    return (date);

} // xsdDateTimeToNSDate

[auth]
bitbucket.prefix = bitbucket.org/markd2
bitbucket.username = markd2
bitbucket.password = B4dg3rzRuL3
bitbucket.schemes = http https

% hg push https://bitbucket.org/markd2/borkfit

    NSString *ook = @"\n \t\t hello there \t\n  \n\n";
    NSString *trimmed =
        [ook stringByTrimmingCharactersInSet:
                 [NSCharacterSet whitespaceAndNewlineCharacterSet]];

    NSLog(@"trimmed: '%@'", trimmed);

2009-12-24 18:24:42.431 trim[6799:903] trimmed: 'hello there'

// We must take care here, since Intel leaves junk in high bytes of return register
// for predicates that return BOOL.
// For details see: 
// unibin chapter and verse (link currently broken courtesy of Apple)
// and
//comment at red-sweater.
- (BOOL)filterObject:(id)obj returning:(id *)resultp {
  *resultp = obj;
  return ((BOOL (*)(id, SEL, id))objc_msgSend)(obj, operation_, object_);
}

The attach command's -waitfor option to make gdb lie in wait for a launching process:

% gdb /some/app/blah
(gdb) attach -waitfor blah

#define CONVERT_SYMBOL_TO_NSSTRING_2(x) @#x
#define CONVERT_SYMBOL_TO_NSSTRING(x) CONVERT_SYMBOL_TO_NSSTRING_2(x)

NSString *version = CONVERT_SYMBOL_TO_NSSTRING (BUILD_NUMBER);

2009-06-01 12:49:29.447 otest[70099:203] *** NSTask: Task create for path '/blah/blah/blah' failed: 8, "Exec format error". Terminating temporary process.

%  arch -arch i386 /Developer/Tools/otest build/Debug/Snoogle.octest

% hdiutil create -ov -imagekey zlib-level=9 -fs HFS+ -format UDZO -scrub -srcfolder /Path/To/The/Goodies fooby.dmg

defaults write com.flyingmeat.acorn NSRecentDocumentsLimit 137

(select stuff)
C-x r x 1

Getting stuff out of a register:

C-x r g 1

% gdb /Developer/Tools/otest
2008-10-31 19:29:50.834 otest[711:813] Error loading
/blah/blah/blah/build/Debug/Tests.octest/Contents/MacOS/Tests:
dlopen(/blah/blah/blah/build/Debug/Tests.octest/Contents/MacOS/Tests,
265): no suitable image found.  Did find:
        /blah/blah/blah/build/Debug/Tests.octest/Contents/MacOS/Tests:
        mach-o, but wrong architecture
2008-10-31 19:29:50.887 otest[711:813] The test bundle at
build/Debug/Tests.octest could not be loaded because it is built for a
different architecture than the currently-running test rig (which is
running as unknown).
2008-10-31 19:29:50.904 otest[714:203] *** NSTask: Task create for
path '/blah/blah/blah/build/Debug/Tests.octest/Contents/MacOS/Tests'
failed: 8, "Exec format error".  Terminating temporary process.

% gdb -arch i386 /Developer/Tools/otest

C-/

This advice brought to you by a DTS incident.

% ls -l ~/junk/SnapshotRepository.sparseimage
-rw-r--r--@ 1 markd  markd  135270400 Jul 24 20:38 /Users/markd/junk/SnapshotRepository.sparseimage

% ls -l@ ~/junk/SnapshotRepository.sparseimage
-rw-r--r--@ 1 markd  markd  135270400 Jul 24 20:38 /Users/markd/junk/SnapshotRepository.sparseimage
	com.apple.diskimages.fsck	       20 

//
//  TapDance.h
//  Groovilicous
//
//  Created by markd on 7/25/08.
//  Copyright 2008 __MyCompanyName__. All rights reserved.
//

% defaults write com.apple.Xcode PBXCustomTemplateMacroDefinitions '{"ORGANIZATIONNAME" = "Borkware";}'

% defaults write com.apple.Xcode XCShowUndoPastSaveWarning NO

void *tempCopyOf(void *data, NSUInteger size)
{
   return data ? [[NSData dataWithBytes:data length:size] mutableBytes] : NULL;
}

void *tempCopyOf(void *data, NSUInteger size)
{
   void *buffer = NULL;
   if( data ) {
       buffer = NSAllocateCollectable(size, 0);
       memcpy(buffer, data, size);
   }
   return buffer;
}

• Open up both files
• Bring the source file up, shift-drag the layer from the palette
• Drag into the image area of the target document

...
  [someWebView setPolicyDelegate: self];
...

- (void) webView:(WebView *)webView
decidePolicyForNavigationAction:(NSDictionary *)actionInformation
         request:(NSURLRequest *)request
           frame:(WebFrame *)frame
decisionListener:(id)listener {
    NSURL *url = [request URL];
    if (url != nil) {
        [[NSWorkspace sharedWorkspace] openURL:url];
    }

}  // decidePolicyForNavigationAction

 p4 revert -a

(Thanks to TVL for this one)

p4 edit -t text [file_list] 
p4 submit

% sudo tcpdump -Atq -s 0 -i en1

You can add a host line to limit output to a particular host

% sudo tcpdump -Atq -s 0 -i en1 host zombo.com

  % gdb build/Debug/Snorkfizzle.app/Contents/MacOS/Snorkfizzle
  (gdb) set env NSZombieEnabled=YES
  (gdb) fb -[_NSZombie methodSignatureForSelector:]
  (gdb) run

  // I am the very modal of a modern major general.
  int blah = [NSApp runModalForWindow:[self window]];

  [NSApp stopModalWithCode:NSOKButton];

% sw_vers -productVersion
10.5.1

- (void) snorgWaffle: (NSString *) start, ... {

    va_list argList;
    va_start (argList, start);

    NSString *string = start;

    while (string != nil) {
        NSLog (@"Done did saw string '%@'", string);

        string = va_arg (argList, NSString *);
    }

    va_end (argList);

} // snorgWaffle

[self snorgWaffle:@"red", @"planet", @"zeitgeist", nil];

[[NSDate date] descriptionWithCalendarFormat: @"%B %e, %Y" timeZone: nil locale: nil]

    NSMutableArray *sortedArray = [NSMutableArray arrayWithObjects: @"Alice", @"Beth", @"Carol",@"Ellen",nil];
    
    //Where is "Beth"?
    unsigned index = (unsigned)CFArrayBSearchValues((CFArrayRef)sortedArray,
                                                    CFRangeMake(0, CFArrayGetCount((CFArrayRef)sortedArray)),
                                                    (CFStringRef)@"Beth",
                                                    (CFComparatorFunction)CFStringCompare,
                                                    NULL);
    if (index < [sortedArray count])
    {
        NSLog(@"Beth was found at index %u", index);
    } else {
        NSLog(@"Beth was not found (index is beyond the bounds of sortedArray)");
    }
    
    //Where should we insert "Debra"?
    unsigned insertIndex = (unsigned)CFArrayBSearchValues((CFArrayRef)sortedArray,
                                                          CFRangeMake(0, CFArrayGetCount((CFArrayRef)sortedArray)),
                                                          (CFStringRef)@"Debra",
                                                          (CFComparatorFunction)CFStringCompare,
                                                          NULL);
    [sortedArray insertObject:@"Debra" atIndex:insertIndex];
    NSLog([sortedArray description]);

    //note: NSArray indices and counts were typed as unsigned.  With the move to 64-bit, they are NSUInteger.
    //CFArray indices and counts are CFIndex, which was SInt32 but also will move to 64-bit?
    //Why was it ever signed and will it remain so?

Gus Mueller chimed in saying that if you use CFArrayBSearchValues, be sure to sort with CFArraySortValues rather than using the Cocoa sorting routines (or at least the comparison) - they treat diacritic marks differently, leading to strange errors. From Gus, a quick objc addition to NSMutableArray:

- (void) cfStringSort {
   CFArraySortValues((CFMutableArrayRef)self, CFRangeMake(0, [self count]), (CFComparatorFunction)CFStringCompare, NULL);
}

% cat /System/Library/Frameworks/Foundation.framework/Headers/*.h > ~/moby
% cat /System/Library/Frameworks/AppKit.framework/Headers/*.h >> ~/moby
% chmod 444 ~/moby

    [themStitches sortUsingSelector: @selector(compareByRowLocation:)];

  - (NSComparisonResult) compareByRowLocation: (BWCrossStitch *) thing2;

• NSOrderedAsending if self < thing2
• NSOrderedDescending if self > thing2
• NSOrderedSame if self == thing2

shift-click
{ 
   $any_click 
   if @click.simple_name == "" 
      if @my.right_item == "caduceus" 
         "\use /off\r" 
      end if 
   else if @click.simple_name == @my.simple_name 
      if @my.right_item != "moonstone" 
         "\equip \"moonstone\"\r" 
      end if 
      "\use 3\r" 
   else 
      if @my.right_item != "caduceus" 
         "\equip \"caduceus\"\r" 
      end if 
      "\use " @click.simple_name "\r" 
      message "* Now healing" @click.name 
   end if 
} 

% xcodebuild -configuration Release -target "Test All" -project Tests.xcodeproj NATIVE_ARCH="i386 ppc"

% /usr/libexec/oah/translate /Developer/Tools/otest build/Release/Tests.octest

C-U M-! ret uuidgen ret

% grep -h chicken ~/Documents/ircLogs/FreeNode/2007*/#macsb*

@implementation NSString (PasteboardGoodies)

- (void) sendToPasteboard
{
        [[NSPasteboard generalPasteboard] 
            declareTypes: [NSArray arrayWithObject: NSStringPboardType]
            owner:nil];
        [[NSPasteboard generalPasteboard]
            setString: self
            forType: NSStringPboardType];
} // sendToPasteboard

@end // PasteboardGoodies

% p4 revert -c default ...

fb -[NSException raise]
fb objc_exception_throw()

I've been told VoiceOver uses exceptions heavily, so if you're doing VoiceOver development, these breaks may cause you pain.

NSArray *chunks  = ... get an array, say by splitting it;
string = [chunks componentsJoinedByString: @" :-) "];

oop :-) ack :-) bork :-) greeble :-) ponies

    NSMutableString *mstring = [NSMutableString stringWithString:string];
    NSRange wholeShebang = NSMakeRange(0, [mstring length]);

    [mstring replaceOccurrencesOfString: @"
"
             withString: @""
             options: 0
             range: wholeShebang];

    return [NSString stringWithString: mstring];

This technique takes half the time (at least) of split/join. But probably not enough to make an impact. In a simple test, split/join took 0.124 seconds to strip 36909 newlines in a 1.5 meg textfile, and 0.071 seconds to do the same.

  printf ("hello %.*s\n", 5, "there is no good going on");
  NSLog (@"hello %.*s\n", 5, "there is no good going on");

hello there
2007-05-04 09:14:15.575 printf[4914] hello there

Similarly, something like printf ("hello %*.*s\n", 10, 5, "florgsnorgle"); will right-justify 'florg' in a field of 10 characters.

(Thanks to TVL for this goodie)

  NSString *string = @"oop:ack:bork:greeble:ponies";
  NSArray *chunks = [string componentsSeparatedByString: @":"];

% touch -t 200703141536 snork.waffle

% ls -l snork.waffle
-rw-r--r--   1 markd  markd  298 Mar 14 15:36 snork.waffle

Open up Internet Connect, select your VPN icon in the toolbar, and choose options from the Connect menu. Uncheck "Disconnect when switching user accounts".

static void *tempCopyOf(void *data,UInt32 size) {
    void *buffer = NULL;
    if (data) {
        buffer = malloc(size);
        if (buffer) {
            bcopy(data,buffer,size);
            [NSData dataWithBytesNoCopy: buffer  length: size  freeWhenDone: YES];
        }
    }
    return (buffer);
}

Also note this doesn't play well with garbage collection - caveat nerdor. (Thanks to Ken Ferry for that note)

  NSString *pathString = ... whatever ...;

  FSRef ref;
  status = FSPathMakeRef ((const UInt8 *)[pathString fileSystemRepresentation],
                          &ref, NULL);

  if (status != noErr) {
      NSLog (@"bummer.  couldn't make FSREf from path '%@'",
             pathString);
  }

% /Developer/Tools/DeRez -useDF  ./blarg.rsrc  /Developer/SDKs/MacOSX10.4u.sdk/Developer/Headers/FlatCarbon/MacTypes.r  > oopack2

% /Developer/Tools/Rez -o blah.rsrc -useDF  /Developer/SDKs/MacOSX10.4u.sdk/Developer/Headers/FlatCarbon/MacTypes.r oopack2

% /usr/bin/mdimport -d2  ../Book.pdf >& oopack.txt

% svn switch --relocate http://from-address.flongswozzle.net http://to-address.borkware.com

% defaults write com.borkware.snongflozzle ookook -array thing1 thing2 thing3

• Select all the text
• Go to the services menu and select summarization service
• You'll get a window with a slider at the bottom. Move that down all the way to the left
• Amazingly, with 9/10 of blog posts it works REALLY well.

In this case, the selector being called takes two arguments, one of which is an object, the other is an NSTimeInterval. The atIndex: jazz starts with 2 so that the self parameter and the selector can be passed to the method.

  NSMethodSignature *signature = [target_ methodSignatureForSelector:selector_];

  NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature];
  [invocation setSelector:selector_];
  [invocation setTarget:target_];
  [invocation setArgument:&self
              atIndex:2];
  [invocation setArgument:&lastWait_
              atIndex:3];

  [invocation invoke];

One way to hack around it is to tell the image to use the pixel size of the underlying image representation:

    NSImage *image;
    image = [[NSImage alloc] initWithContentsOfFile: path];

    NSBitmapImageRep *rep = [[image representations] objectAtIndex: 0];
    // If you think you might get something other than a bitmap image representation,
    // check for it here.

    NSSize size = NSMakeSize ([rep pixelsWide], [rep pixelsHigh]);
    [image setSize: size];

% /Developer/Tools/otest -SenTest  ClassName ./build/Debug/TheUnitTest.octest

[[textfield cell] setLineBreakMode: NSLineBreakByTruncatingMiddle]

% find . -name "*.h" -print -exec cat {} \; > ~/moby-file.h

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    gridType = [defaults objectForKey: @"gridType"];

% defaults write com.borkware.BorkStitch gridType flarn

% ./build/Debug/BorkStitch.app/Contents/MacOS/BorkStitch -gridType flarn

% cd ~/Library/Screen Savers
% ln -s ~/Projects/MonkeySaver/build/Debug/MonkeySaver.saver .

% find . -name "*.yuck" -print0 | xargs -0 tar rvf oop.tar

Thanks to Ben Cox for the -print0 / -0 suggestion.

    NSData *blah = [xmldocument XMLDataWithOptions: NSXMLNodePrettyPrint];
    NSString *snork = [[NSString alloc] initWithData: blah
                                        encoding: NSUTF8StringEncoding];
    NSAttributedString *arrrgh;
    arrrgh = [[NSAttributedString alloc] initWithString: snork];

    [[xmlTextView textStorage]
        setAttributedString: [arrrgh autorelease]];

    float domain[2] = { 0.0, 1.0 };     // 1-in function
    float range[8] = { 0.0, 1.0,        // N-out, RGBA
                       0.0, 1.0,
                       0.0, 1.0,
                       0.0, 1.0 };
    CGFunctionCallbacks callbacks = { 0, evaluate, NULL };

    CGFunctionRef shaderFunction;
    shaderFunction = CGFunctionCreate (self,    // info / rock / context
                                       1,       // # of inputs for domain
                                       domain,  // domain
                                       4,       // # of inputs for range
                                       range,   // range
                                       &callbacks);

    CGColorSpaceRef deviceRGB;
    deviceRGB = CGColorSpaceCreateDeviceRGB ();

    CGShadingRef shader;
    shader = CGShadingCreateAxial (deviceRGB,       // colorspace
                                   cgpoint(start),  // start of axis
                                   cgpoint(end),    // end of axis
                                   shaderFunction,  // shader, 1-n, n-out
                                   NO,              // extend start
                                   NO);             // extend end

    CGContextSaveGState (context); {
        NSRect bounds = [self bounds];
        CGContextClipToRect (context, cgrect(bounds));
        CGContextDrawShading (context, shader);
    } CGContextRestoreGState (context);

    [self drawSpotAt: start  size: 4];
    [self drawSpotAt: end  size: 4];

    CGFunctionRelease (shaderFunction);
    CGColorSpaceRelease (deviceRGB);
    CGShadingRelease (shader);

static void evaluate (void *info, const float *in, float *out)
{
    float thing;
    thing = in[0];

    out[0] = thing;
    out[1] = thing;
    out[2] = thing;
    out[3] = 1.0;

} // evaluate

#define cgrect(nsrect) (*(CGRect *)&(nsrect))

- (void) drawRect: (NSRect) rect
{
    NSRect bounds = [self bounds];

    NSGraphicsContext *cocoaContext = [NSGraphicsContext currentContext];
    CGContextRef context = (CGContextRef)[cocoaContext graphicsPort];

    CGContextSetLineWidth (context, 5.0);

    CGContextBeginPath(context); {
        CGContextAddRect (context, cgrect(bounds));
        CGContextSetRGBFillColor (context, 1.0, 0.9, 0.8, 1.0);
    } CGContextFillPath(context);

} // drawRect

- (void) makeLayerInContext: (CGContextRef) enclosingContext
{
    layer = CGLayerCreateWithContext (enclosingContext, CGSizeMake(100, 100),
                                      NULL); // options - unused in Tiger
    CGContextRef context;
    context = CGLayerGetContext (layer);

    // .. and do your drawing

} // makeLayer

    for (i = 0; i < pointCount; i++) {
        CGContextDrawLayerAtPoint (context, locations[i], layer);
    }

% screen -r
There is a screen on:
        8395.pts-0.vikki    (Multi, attached)

% screen -d 8395.pts-0.vikki

screen -e^Oo emacs

screen -r

One option is to set the TERM env var to rxvt:

% setenv TERM rxvt

insert into blah (id, stuff) 
       values (nextval('sequence_name'), 'stuff');

define wchar_print
        echo "

        set $i = 0
        while (1 == 1)
                set $c = (char)(($arg0)[$i++])
                if ($c == '\0')
                        loop_break
                end
                printf "%c", $c
        end

        echo "

end

document wchar_print
wchar_print <wstr>
Print ASCII part of <wstr>, which is a wide character string of type wchar_t*.
end

# svc -u /service/whatever - Start the server up and leave it in keepalive mode.

# svc -o /service/whatever - Start the server up once. Do not restart it if it stops.

# svc -t /service/whatever - Stop and immediately restart the server.

# svc -k /service/whatever - Sends the server a KILL signal. This is like KILL -9. If svc -t fails to fully kill the process, use this option.

(Thanks to the OpenACS documentation)

tell application "VoodooPad"
	taunt
end tell

Borkdoku(11062,0xcec0600) malloc: *** error for object 0xd109010: 
   incorrect checksum for freed object - object was probably modified 
   after being freed, break at szone_error to debug

The problem is, if I include the usefulStuff.c in my plugin and my test harness, there are two copies of the static variables, and the test harness can't control the plugin. If I don't include usefulStuff.c in the plugin I get link errors. If I don't declare as weak linked the functions I use, I'll get errors when the final program loads the plugin. Sucks to be me.

Here's one way of doing it (which is kinda hacky, but after spending a day inside of the ld man page, and other pain, the fact it works is good enough for me for right now).

In the source file for the plugin that uses stuff from usefulStuff:

Declare the function to be weak:

extern void BWDebugLog (int blah, char *blah) __attribute__((weak_import));

Before you use the function, make sure it's not NULL. Note there's no trailing () after the function name.

if (BWDebugLog != NULL) {
    BWDebugLog (23, "stuff");
}

Add the flags -flat_namespace and -undefined dynamic_lookup to the "Other Linker Flags" (a.k.a. OTHER_LDFLAGS). The flat namespace lets the symbols be found in the test harness when the plugin is loaded. The undefined dynamic_lookup means to suppress warnings about undefined symbols. This could conceivably mask errors, but it's no worse than ZeroLink.

In the Xcode project for the test harness

Add usefulStuff.c, and turn on the "Preserve Private External Symbols" checkbox (a.k.a -keep_private_externs). That turns the symbol BWDebugLog (and others) into exported symbols that'll be visible to the plugin. Otherwise the plugin will never get past that != NULL check earlier.

Once all that's done, my plugin loads into the test harness and can get controlled. It can be loaded into the Real App without undefined symbol errors.

/* For the emacs weenies in the crowd.
Local Variables:
   c-basic-offset: 2
End:
*/

% find . -name "*.octest" -print
./build/Debug/Tests.octest

% gdb /Developer/Tools/otest

(gdb) run ./build/Debug/Tests.octest

void giveSomeLove ()
{
    // give the app some love so it'll update the window
    [[NSRunLoop currentRunLoop] runUntilDate: [NSDate distantPast]];
} // giveSomeLove

    NSOpenPanel *panel = [NSOpenPanel openPanel];

    [panel setPrompt: @"Stuff for the Choose Button"];

    [panel beginSheetForDirectory: nil
           file: nil
           types: [NSArray arrayWithObject: @"buf"] // or other file types
           modalForWindow: window
           modalDelegate: self
           didEndSelector: @selector(openPanelDidEnd:returnCode:contextInfo:)
           contextInfo: nil];

- (void) openPanelDidEnd: (NSOpenPanel *) sheet
              returnCode: (int) returnCode
             contextInfo: (void *) context
{
    if (returnCode == NSOKButton) {
        NSArray *fileNames = [sheet filenames];

        NSLog (@"wooOOooot! %@", [fileNames objectAtIndex: 0]);
    }

} // openPanelDidEnd

(gdb) set env DYLD_INSERT_LIBRARIES /usr/lib/libgmalloc.dylib

float blah = FixedToFloat(someFixedvalue);

% grep -e -H filename

#define runScriptName @"checknewnow"
#define runScriptType @"scpt"


- (IBAction)runScript:(id)sender
{
    /* Locate that darn thing*/
    NSString *scriptPath = [[NSBundle mainBundle]
                               pathForResource: runScriptName
                               ofType: runScriptType];
    NSURL *scriptURL = [NSURL fileURLWithPath: scriptPath];

    NSAppleScript *as = [[NSAppleScript alloc]
                            initWithContentsOfURL: scriptURL
                            error: nil];
    [as executeAndReturnError: NULL];
    [as release];
}

(gdb) print/T 1936746868
$4 = 'spit'

 nm ./oopack.o | awk '{print $2}' | sort | grep __

ld: multiple definitions of symbol __ZN13CaptureWidgetD2Ev
/Users/blah/blah/build/./capture.build/Debug/capture.build/Objects-normal/ppc/capturewidget-F17F43C0.o definition of __ZN13CaptureWidgetD2Ev in section (__TEXT,__text)
/Users/blah/blah/build/./capture.build/Debug/capture.build/Objects-normal/ppc/capturewidget-F17F43C0.o definition of __ZN13CaptureWidgetD2Ev in section (__TEXT,__text)

This is especially annoying, because the same object file is listed as having a duplicated symbol. If you take out the file from being compiled, you get undefined symbols for that particular source file, and if you put it back in, you get duplicated symbols.

Turn out the problem is that Xcode (somehow) added the C++ file to the "Build Sources" phase of the target. It happily generated two identical object files, and proceded to link them (hence the error), but doesn't get the reporting information correct (hence saying that both symbols come from the same file)

% /Developer/Tools/otest path/to/build/Unittest/TheUnit Test.octest

% find . -type d -print | grep -v CVS | xargs cvs add
% find . -type f -print | grep -v CVS | xargs cvs add

% install_name_tool -id @executable_path/libbork.dylib ./libbork.dylib

So, combine the two for maximal pleasure:

function cavemanLog(message) {
  
  if (window.widget) {
    // Won't display an error box, but will show in the console log.
    window.alert(message);

  } else {
    // Send output to the javascript console.
    window.console.log(message);
  }

} // cavemanLog

  if (window.console) {
    window.console.log ("ook1");
  }

#import <Cocoa/Cocoa.h>
#import <stdio.h> // for printf()

@interface NotificationSpy
{
}

+ (void) startSpying;
+ (void) stopSpying;

@end // NotificationSpy


// prevent us from adding ourselves multiple times

static BOOL g_spying;


@implementation NotificationSpy

// turn on listening for all notifications.

+ (void) startSpying
{
    if (!g_spying) {
        NSNotificationCenter *center;

        // first the default notification center, which is all
        // notifications that just happen inside of our program

        center = [NSNotificationCenter defaultCenter];
        
        [center addObserver: self
                selector: @selector(observeDefaultCenterStuff:)
                name: nil
                object: nil];

        // then the NSWorkspace notification center, which tells us things
        // like other applications launching, and the machine sleeping
        // and waking

        center = [[NSWorkspace sharedWorkspace]
                     notificationCenter]; 

        [center addObserver: self
                selector: @selector(observeWorkspaceStuff:)
                name: nil
                object: nil];

        // and lastly the distributed notification center.  This is a
        // global (to the computer) notification center.  You can find
        // out when a different program gets focus, or the sound or
        // screen brightness changes.

        center = [NSDistributedNotificationCenter 
                     notificationCenterForType: NSLocalNotificationCenterType];

        [center addObserver: self
                selector: @selector(observeDistributedStuff:)
                name: nil
                object: nil];

        g_spying = YES;
    }

} // startSpying 


// remove us as observers

+ (void) stopSpying
{
    if (!g_spying) {
        NSNotificationCenter *center;

        // take us off the default center for our app
        center = [NSNotificationCenter defaultCenter];
        [center removeObserver: self];

        // and for the workspace
        center = [[NSWorkspace sharedWorkspace] 
                     notificationCenter];
        [center removeObserver: self];

        // and finally off of the machine-wide center
        center = [NSDistributedNotificationCenter 
                     notificationCenterForType: NSLocalNotificationCenterType];
        [center removeObserver: self];

        g_spying = NO;
    }

} // stopSpying



+ (void) observeDefaultCenterStuff: (NSNotification *) notification
{
    // QuietLog can also be found in the quickies
    QuietLog (@"default: %@", [notification name]);
} // observeDefaultCenterStuff



+ (void) observeDistributedStuff: (NSNotification *) notification
{
    QuietLog (@"distributed: %@", [notification name]);
} // observeDistributedStuff



+ (void) observeWorkspaceStuff: (NSNotification *) notification
{
    QuietLog (@"workspace: %@", [notification name]);
} // observeWorkspaceStuff


@end // NotificationSpy

% defaults write com.apple.Safari WebKitOmitPDFSupport -bool YES

% defaults write com.apple.dashboard devmode YES

WebArchive *archive = ... get from somewhere...;

WebFrame *frame = [webView mainFrame];
[frame loadArchive: webarchive];

Except if you've added KVO to a subclass of NSArrayController (and possibly all controller types), and don't call super'sobserveValueForKeyPath:ofObject:change:context:, bindings won't work at all, with no warning/notice/nothing. (Courtesy of Duncan Wilcox)

There is a gotcha: returning NSTerminateLater stops the main runloop, so your NSTimers will stop working from that point on. Thus, if you were depending on a timer firing to finish up your shut-down process, you'll never see it, and you'll hang. The solution is to return NSTerminateCancel, then do whatever you need to do and then terminate yourself manually. (Thanks to Larry Gerndt for this one!)

b objc_msgSend
comm
silent
printf "%c[%s %s]\n", $r3&&((id)$r3)->isa->info&2?'+':'-', $r3?((id)$r3)->isa->name:"nil", $r4
cont
end
b objc_msgSend_rtp
comm
silent
printf "%c[%s %s]\n", $r3&&((id)$r3)->isa->info&2?'+':'-', $r3?((id)$r3)->isa->name:"nil", $r4
cont
end

-[NSTableColumn _bindingAdaptor]
+[NSBinder binderClassesForObject:]
+[NSBinder _allBinderClasses]
+[NSDisplayPatternTitleBinder isUsableWithObject:]
+[NSBox self]

- (NSData *) dataOfType: (NSString *) typeName
                  error: (NSError **) error
{
    *error = nil;

    NSMutableData *data = [[NSMutableData alloc] init];

    NSKeyedArchiver *archiver;
    archiver = [[NSKeyedArchiver alloc]
                   initForWritingWithMutableData: data];
    [archiver setOutputFormat: NSPropertyListXMLFormat_v1_0];

    [archiver encodeObject: stitches  forKey: @"stitches"];
    // and archive other stuff you want

    [archiver finishEncoding];
    [archiver release];

    return ([data autorelease]);

} // dataOfType


- (BOOL) readFromData: (NSData *) data
              ofType: (NSString *) typeName
               error: (NSError **) error
{
    *error = nil;

    NSKeyedUnarchiver *archiver;
    archiver = [[NSKeyedUnarchiver alloc]
                   initForReadingWithData: data];

    [stitches release];

    stitches = [archiver decodeObjectForKey: @"stitches"];
    // decode other stuff of interest

    [stitches retain];

    return (YES);

} // readFromData

- (void) encodeWithCoder: (NSCoder *) coder
{
    [coder encodeInt: x  forKey: @"x"];
    [coder encodeInt: y  forKey: @"y"];
    [coder encodeObject: color1  forKey: @"color1"];
    [coder encodeObject: color2  forKey: @"color2"];
    [coder encodeInt: direction  forKey: @"direction"];

} // encodeWithCoder


- (id) initWithCoder: (NSCoder *) coder
{
    if (self = [super init]) {
        x = [coder decodeIntForKey: @"x"];
        y = [coder decodeIntForKey: @"y"];
        color1 = [coder decodeObjectForKey: @"color1"];
        color2 = [coder decodeObjectForKey: @"color2"];
        direction = [coder decodeIntForKey: @"direction"];
    }

    return (self);

} // initWithCoder

unsigned index;
for (index = [indexSet firstIndex];
      index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])  {
   ...
}

- (NSAttributedString *) prettyName
{
    NSTextAttachment *attachment;
    attachment = [[[NSTextAttachment alloc] init] autorelease];
    NSCell *cell = [attachment attachmentCell];

    NSImage *icon = [self icon]; // or wherever you are getting your image
    [cell setImage: icon];

    NSString *name = [self name];
    NSAttributedString *attrname;
    attrname = [[NSAttributedString alloc] initWithString: name];

    NSMutableAttributedString *prettyName;
    prettyName = (id)[NSMutableAttributedString attributedStringWithAttachment:
                                                attachment]; // cast to quiet compiler warning
    [prettyName appendAttributedString: attrname];

    return (prettyName);

} // prettyName

    [NSApp beginSheet: saveSheet
           modalForWindow: window
           modalDelegate: self
           didEndSelector: @selector(saveSheetDidEnd:returnCode:contextInfo:)
           contextInfo: NULL];

    [NSApp endSheet: saveSheet  returnCode: NSOKButton];

- (void) saveSheetDidEnd: (NSWindow *) sheet
              returnCode: (int) returnCode
             contextInfo: (void *) contextInfo
{
    if (returnCode == NSOKButton) {
        // ...
    } else if (returnCode == NSCancelButton) {
        // ...
    } else {
        // ...
    }

    [sheet close];

} // saveSheetDidEnd

NSString *commitMessage;
commitMessage = [[commitTextView textStorage] string];

To do it yourself, subclass NSTextField and override setEnabled: to change the color:

- (void) setEnabled: (BOOL) flag
{
    [super setEnabled: flag];

    if (flag == NO) {
        [self setTextColor: [NSColor secondarySelectedControlColor]];
    } else {
        [self setTextColor: [NSColor controlTextColor]];
    }

} // setEnabled

This actually kind of a gross workaround for a Cocoa bug - the disabled color is getting made darker rather than lighter. The secondarySelectedControlColor ends up looking disabled by a happy coincidence that it starts out lighter before being darkened. (or something like this. UberDude Dave MacLachlan has done the legwork to figure out the underlying problem.)

        [[textView textStorage] setAttributedString: theNewString];

In my NSSegmentedControl category, I have a method to solve this problem:

@interface NSSegmentedControl (BorkwareAdditions)
- (void) unselectAllSegments;
// ... other goodies
@end // NSSegmentedControl

- (void) unselectAllSegments
{
    NSSegmentSwitchTracking current;
    current = [self trackingMode];

    [self setTrackingMode: NSSegmentSwitchTrackingMomentary];

    int i;
    for (i = 0; i < [self segmentCount]; i++) {
        [self setSelected: NO  forSegment: i];
    }

    [self setTrackingMode: current];

} // unselectAllSegments

- (void) observeValueForKeyPath: (NSString *) keyPath
                       ofObject: (id) object
                         change: (NSDictionary *) change
                        context: (void *) context

If it is an insertion, the NSKeyValueChangeIndexesKey is an index set that contains the index of the inserted object. You can query the collection for the object at that index to get the new object.

if it a deletion, the NSKeyValueChangeIndexesKey tells you the index where the object was deleted from, and the NSKeyValueChangeOldKey contains an NSArray of objects which were removed, in case you want to hang on to it, or use it to clean out some of your data structures.

+ (BWInspector *) sharedInspector
{
    static BWInspector *s_inspector;

    if (s_inspector == nil) {
        s_inspector = [[BWInspector alloc]
                          initWithWindowNibName: @"BWInspector"];
        assert (s_inspector != nil);

        // force loading of nib
        (void) [s_inspector window];
    }

    return (s_inspector);

} // sharedInspector

- (float) titleBarHeight
{
    NSRect frame = NSMakeRect (0, 0, 100, 100);

    NSRect contentRect;
    contentRect = [NSWindow contentRectForFrameRect: frame
                            styleMask: NSTitledWindowMask];

    return (frame.size.height - contentRect.size.height);

} // titleBarHeight

    float delta = ... how much to make the window bigger or smaller ...;
    NSRect frame = [window frame];

    frame.origin.y -= delta;
    frame.size.height += delta;

    [window setFrame: frame
             display: YES
             animate: YES];

    NSRect newWindowFrame = ... the new window size;

    NSDictionary *windowResize;
    windowResize = [NSDictionary dictionaryWithObjectsAndKeys:
                                 window, NSViewAnimationTargetKey,
                                 [NSValue valueWithRect: newWindowFrame],
                                 NSViewAnimationEndFrameKey,
                                 nil];

    NSDictionary *oldFadeOut = nil;
    if (oldView != nil) {
        oldFadeOut = [NSDictionary dictionaryWithObjectsAndKeys:
                                   oldView, NSViewAnimationTargetKey,
                                   NSViewAnimationFadeOutEffect,
                                   NSViewAnimationEffectKey, nil];
    }

    NSDictionary *newFadeIn;
    newFadeIn = [NSDictionary dictionaryWithObjectsAndKeys:
                                  newView, NSViewAnimationTargetKey,
                              NSViewAnimationFadeInEffect,
                              NSViewAnimationEffectKey, nil];

    NSArray *animations;
    animations = [NSArray arrayWithObjects:
                              windowResize, newFadeIn, oldFadeOut, nil];

    NSViewAnimation *animation;
    animation = [[NSViewAnimation alloc]
                    initWithViewAnimations: animations];

    [animation setAnimationBlockingMode: NSAnimationBlocking];
    [animation setDuration: 0.5]; // or however long you want it for

    [animation startAnimation]; // because it's blocking, once it returns, we're done

    [animation release];

    NSString *blah = @"Placeholder Pane";
    NSSize size = [blah sizeWithAttributes: nil];

    NSPoint startPoint;
    startPoint.x = bounds.origin.x + bounds.size.width / 2 - size.width / 2;
    startPoint.y = bounds.origin.y + bounds.size.height / 2 - size.height / 2;

    [blah drawAtPoint: startPoint
          withAttributes: nil];

- (void) setDefaultPrefs
{
    NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];

    [dictionary setObject: NSLocalizedString(@"BorkDown", nil)
                forKey: @"menuTitle"];

    [dictionary setObject: NSLocalizedString(@"Time has run out.", nil)
                forKey: @"alertWindowText"];

    // and any other preferences you might have

    [[NSUserDefaults standardUserDefaults]
        registerDefaults: dictionary];

} // setDefaultPrefs

@interface BorkSpellChecker : NSSpellChecker
{
}
@end // BorkSpellChecker


@implementation BorkSpellChecker

+ (void) load
{
    NSLog (@"posing");
    [self poseAsClass: [NSSpellChecker class]];

} // load


- (void) ignoreWord: (NSString *) word  inSpellDocumentWithTag: (int) tag
{
    NSLog (@"ignore word: %@  intag: %d",
           word, tag);
    [super ignoreWord: word
           inSpellDocumentWithTag: tag];

} // ignoreWord

- (NSParagraphStyle *) paragraphStyleInTextView: (NSTextView *) textView
                                        atIndex: (int) index
{
    NSTextStorage *storage = [textView textStorage];

    NSDictionary *attributes;
    NSRange effectiveRange;
    attributes = [storage attributesAtIndex: index
                          effectiveRange: &effectiveRange];

    NSParagraphStyle *style;
    style = [attributes valueForKey: NSParagraphStyleAttributeName];

    return (style);

} // paragraphStyleInTextView

    NSRange selectedRange = [textview selectedRange];
    NSTextStorage *storage = [textview textStorage];
    effectiveRange = [[storage string] paragraphRangeForRange: selectedRange];

Pick a class to be the contact point with Growl. Your AppController class is a good place. Import <Growl/Growl.h>

Set the delegate to the GrowlApplicationBridge:

    [GrowlApplicationBridge setGrowlDelegate: self];

- (NSDictionary *) registrationDictionaryForGrowl
{
    NSArray *notifications;
    notifications = [NSArray arrayWithObject: g_timesUpString];

    NSDictionary *dict;

    dict = [NSDictionary dictionaryWithObjectsAndKeys:
                             notifications, GROWL_NOTIFICATIONS_ALL,
                         notifications, GROWL_NOTIFICATIONS_DEFAULT, nil];

    return (dict);

} // registrationDictionaryForGrowl

[GrowlApplicationBridge notifyWithTitle: @"Woop!  Time has expired!"
                        description: @"You have been waiting for 37 minutes"
                        notificationName: g_timesUpString
                        iconData: nil
                        priority: 0
                        isSticky: NO
                        clickContext: nil];

// NSLog() writes out entirely too much stuff.  Most of the time I'm
// not interested in the program name, process ID, and current time
// down to the subsecond level.
// This takes an NSString with printf-style format, and outputs it.
// regular old printf can't be used instead because it doesn't
// support the '%@' format option.

void QuietLog (NSString *format, ...) {
  va_list argList;
  va_start (argList, format);
  NSString *message = [[[NSString alloc] initWithFormat: format
                                              arguments: argList] autorelease];
  fprintf (stderr, "%s\n", [message UTF8String]);
  va_end  (argList);
} // QuietLog

@interface BWInspector : NSWindowController
{
    // ivars, IBOutlets, etc
}

// IBActions, etc

+ (BWInspector *) sharedInspector;
@end // BWInspector

Then in that class method load the window:

+ (BWInspector *) sharedInspector
{
    static BWInspector *g_inspector;

    if (g_inspector == nil) {
        g_inspector = [[BWInspector alloc]
                          initWithWindowNibName: @"BWInspector"];

        assert (g_inspector != nil); // or other error handling

        [g_inspector showWindow: self];
    }

    return (g_inspector);

} // sharedInspector

"BorkDown" = "BorkDown";
"Start Timer" = "Start Timer";
"Stop Timer" = "Stop Timer";

In your code, you can then use NSLocalizedString() or one of its variants:

        [statusItem setTitle: NSLocalizedString(@"BorkDown", nil)];

[miscellany]
global-ignores = build *.mode* *.pbxuser *~.nib .DS_Store *~

You can search for global-ignores in that file to see some info about the setting. You might want to check out Spring Cleaning with Subversion too.

% cd '/Library/Application Support/Apple/Developer Tools/Project Templates'
% find . -name "*.pbxproj" -exec perl -pi -e "s/ZERO_LINK = YES/ZERO_LINK = NO/g" {} \; -print

NSAttributedString *string = ...;

NSRange totalRange = NSMakeRange (0, string.length);
[string enumerateAttributesInRange: totalRange
        options: 0
        usingBlock: ^(NSDictionary *attributes, NSRange range, BOOL *stop) {

            NSLog (@"range: %@  attributes: %@",
                   NSStringFromRange(range), attributes);
    }];

- (void) iterateAttributesForString: (NSAttributedString *) string
{
    NSDictionary *attributeDict;
    NSRange effectiveRange = { 0, 0 };

    do {
        NSRange range;
        range = NSMakeRange (NSMaxRange(effectiveRange),
                             [string length] - NSMaxRange(effectiveRange));

        attributeDict = [string attributesAtIndex: range.location
                                longestEffectiveRange: &effectiveRange
                                inRange: range];

        NSLog (@"Range: %@  Attributes: %@",
               NSStringFromRange(effectiveRange), attributeDict);

    } while (NSMaxRange(effectiveRange) < [string length]);

} // iterateAttributesForString

In Interface Builder 2: If you hold down the control key while resizing, though, the contents obey their spring configurations and will resize accordingly. Makes the process a whole lot easier.

In Interface Builder 3: If you hold down command while resizing, the contents obey their spring configurations and will resize accordingly. (This avoids the annoying process of resizing each widget within the windows afterwards.) Holding option while resizing will display the pixel values of the padding. Holding command-option while dragging displays both.

(muchos thankos to Quinn Taylor at the BYU CocoaHeads for the IB3 update)

The bindings and path are ivars:

     id selectionRectBinding;
     NSString *selectionRectKeyPath;

         // hold on to the binding info
         selectionRectBinding = observableObject;
         selectionRectKeyPath = [observableKeyPath copy];

         // connect KVO
         [valuePathBinding addObserver: self
                           forKeyPath: selectionRectKeyPath
                           options: nil
                           context: NULL];

         // new binding, needs to redraw
         [self setNeedsDisplay: YES];

     // figure out the selection rectangle
     NSRect selectionRect = [self normalizedSelectionRect];

     // wrap in a value and tell the bound object the new value

     NSValue *value;
     value = [NSValue valueWithRect: selectionRect];

     [selectionRectBinding setValue: value
                           forKeyPath: selectionRectKeyPath];

- (void) awakeFromInsert
{
    [super awakeFromInsert];

    NSDate *date = [NSDate date];

    [self setValue: date  forKey: @"when"];

} // awakeFromInsert

Put this in a convenient place:

+ (void) initialize
{
    [NSTextFieldCell setDefaultPlaceholder: @""
                               forMarker: NSNotApplicableMarker
                             withBinding: NSValueBinding];

} // initialize

In Interface Builder, drag over the NSSearchField, and bind the predicate like this:

• Bind To: your array controller
• Controller Key: filterPredicate
• Predicate Format: what contains[c] $value (assuming the attribute you're filtering is called what)

% svn copy file:///usr/local/svnroot/HackDie/trunk 
            file:///usr/local/svnroot/HackDie/tags/stable-1 
            -m "tag for HackDie internal stable release #1"

- (float) radius
{
    [self willAccessValueForKey: @"radius"];
    float f = radius;
    [self didAccessvalueForKey: @"radius"];

   return (f);

} // radius


- (void) setRadius: (float) newRadius
{
    [self willChangeValueForKey: @"radius"];
    radius = newRadius;
    [self didChangeValueForKey: @"radius"];

} // setRadius

- (NSString *) name
{
    [self willAccessValueForKey: @"name"];
    NSString *string = [self primitiveValueForKey: @"name"];
    [self didAccessValueForKey: @"name"];
} // name

- (void) setName: (NSString *) x
{
    [self willChangeValueForKey: @"name"];
    [self setPrimitiveValue: x  forKey: @"name"];
    [self didChangeValueForKey: @"name"];
} // setName

Thanks to Evan Moseman who pointed me at the new easy way to do it:

        NSManagedObjectContext *moc = [self managedObjectContext];
	NSManagedObject *obj = [NSEntityDescription 
		insertNewObjectForEntityForName :@"Condition" 
		inManagedObjectContext: context];

    NSManagedObjectContext *moc = [self managedObjectContext];
    NSManagedObjectModel *mom = [self managedObjectModel];

    NSEntityDescription *entity;
    entity = [[mom entitiesByName] objectForKey: @"Condition"];

    NSString *className;
    className = [entity managedObjectClassName];

    NSManagedObject *obj;
    obj = [[NSClassFromString(className) alloc]
              initWithEntity: entity
              insertIntoManagedObjectContext: moc];

    [obj autorelease];

    [obj setValue: @"nook"  forKey: @"name"];
    [obj setValue: [NSNumber numberWithInt: 23]  forKey: @"ranking"];

NSMutableSet *employees;
employees = [department mutableSetValueForKey: @"employees"];
[employees addObject: newEmployee];
[employees removeObject: sackedEmployee];

    NSSortDescriptor *sorter;
    sorter = [[NSSortDescriptor alloc]
                 initWithKey: @"when"
                 ascending: YES];

    [fetchRequest setSortDescriptors:
               [NSArray arrayWithObject: sortDescriptor]];

- (void) setWhenSortDescriptors: (NSArray *) descriptors
{
} // setWhenSortDescriptors


- (NSArray *) whenSortDescriptors
{
    NSSortDescriptor *sorter;
    sorter = [[[NSSortDescriptor alloc]
                  initWithKey: @"when"
                  ascending: NO] autorelease];

    return ([NSArray arrayWithObject: sorter]);

} // whenSortDescriptors

Don't use the XML store, but instead use the SQLite store

If an entity has a large data blob as an attribute, you should make a separate entity for that attribute.

e.g. a Person has a 'photo' attribute. Create a Photo entity with a single attribute (the data) and a relationship back to the person (if it makes sense, usually it does), and a relationship from the Person to the Photo entity.

This means that the photo data will only be loaded from the persistent store if you actually use it.

(markd: this also has the nice side effect of letting the db put all the blob data elsewhere, rather than in with the other data, giving you better locality of reference to your Person data without slogging through all the Photo jazz if you don't need it)

This find will grovel around project files and turn off ZeroLink. You can start at the path here to turn it off in all of your Xcode templates, and you can also point the find at your own XCode projects. Make backups first if you're feeling squeamish or your stuff isn't under version control.

% cd '/Library/Application Support/Apple/Developer Tools/Project Templates'
% find . -name "*.pbxproj" -exec perl -pi -e "s/ZERO_LINK = YES/ZERO_LINK = NO/g" {} \; -print

% svn log -v -r 373
------------------------------------------------------------------------
r373 | markd | 2005-06-22 16:05:38 -0400 (Wed, 22 Jun 2005) | 1 line
Changed paths:
   A /xyz/trunk/docs/bugreports/4158233-nsbrowser
   A /xyz/trunk/docs/bugreports/4158233-nsbrowser/browser-rows.png
   A /xyz/trunk/docs/bugreports/4158233-nsbrowser/browserdraw.tar.gz
   A /xyz/trunk/docs/bugreports/4158233-nsbrowser/bug.txt

initial revision
------------------------------------------------------------------------

Set your Versioning System (VERSIONING_SYSTEM) to "apple-generic".

Set your Current Project Version (CURRENT_PROJECT_VERSION) to some floating point value that you'll increment every build. You could just start at 1, unless you already have builds out there with other numbers.

This will generate and build a source file automatically that defines two globals whenever you build your project. One is a double corresponding to CURRENT_PROJECT_VERSION, the other is a string. The file is a derived source file; it won't be added to your project, but it will be built with it.

If you're building a framework, there are other build settings you'll probably want to set as well, such as Current Version (DYLIB_CURRENT_VERSION), Compatibility Version (DYLIB_COMPATIBILITY_VERSION), and VERSION_INFO_PREFIX.

To update the version number, you can use agvtool next-version or agvtool new-version.

% defaults write com.apple.mail PreferPlainText -bool TRUE

Hides everything not in the current region.

% mkdir DungeonBorkventure
% cd DungeonBorkventure
% mkdir branches tags trunk
# put source files into trunk
% svn import . file:///usr/local/svnroot -m "initial checkin"
% cd ..
% rm -rf DungeonBorkventure  # or move it aside
% svn checkout file:///usr/local/svnroot/trunk DungeonBorkventure
% cd DungeonBorkventure
# and get to work

First, make the directories in the repository:

% svn mkdir -m "initial revision" file:///usr/local/svnroot/DungeonBorkventure
% svn mkdir -m "initial revision" file:///usr/local/svnroot/MilleBorks

% cd /path/to/DungeonBorkventure
% svn import -m "initial revision" . file:///usr/local/svnroot/DungeonBorkventure
% cd /path/to/MilleBorks
% svn import -m "initial revision" . file:///usr/local/svnroot/MilleBorks

% cd /work/and/play/area
% svn checkout file:///usr/local/svnroot/MilleBorks/trunk MilleBorks
% svn checkout file:///usr/local/svnroot/DungeonBorkventure/trunk DungeonBorkventure

% svn status --show-updates

You can specify files and directories of interest.

% cvs update -Ad  #switch to the trunk (if you haven't already)
% cvs update -d -j branch_name
[resolve conflicts]
% cvs commit -m "whatever"

(Courtesy of Jeremy Stein)

% awk '{ for (f=1; f <= NF; f++) { if (f != 1 && f != 9) printf("%s ", $f);} printf("
");}' < ook.txt

(gdb) call (id) objc_getClass("NSBundle")
$1 = (struct objc_object *) 0xa0a051d8

gdb) call (id)[$1 bundleWithPath:@"/blah/blah/PoseAsClassBundle.bundle"]
$2 = (struct objc_object *) 0x51467e0

(gdb) call (BOOL)[$2 load]
Reading symbols for shared libraries . done

Thanks to Peter Hosey for letting us know about a better API for getting these.

    [searchArrayController addObserver: self
                           forKeyPath: @"selectionIndexes"
                           options: NSKeyValueObservingOptionNew
                           context: NULL];

When the notification happens, this method (invoked against the self used earlier) is invoked:

- (void) observeValueForKeyPath: (NSString *) keyPath
                       ofObject: (id) object
                         change: (NSDictionary *) change
                        context: (void *) context
{
} // observeValueForKeyPath

• Add an NSObjectController (I call it "Fake FIle's Owner") to the nib file and the window controller class.
• Point the bindings to the controller rather than file's owner
• Hook up the window controller's outlet to point to the object controller
• [fakeFileOwner setContent: self]

- (oneway void) release;
{
    // special case when count is 3, we are being retained twice by the object controller...
    if ( [self retainCount] == 3 )
    {
        [super release];
        [filesOwnerProxy setContent:nil];
        return;
    }
    
    [super release];
}

    [searchArrayController addObserver: self
                           forKeyPath: @"selectionIndexes"
                           options: NSKeyValueObservingOptionNew
                           context: NULL];

@interface Blah : NSView
{
    NSPoint grabOrigin;
    NSPoint scrollOrigin;
}
@end // Blah

...

@implementation Blah

...

- (void) mouseDown: (NSEvent *) event
{
    // deal in window coordinates.  there is a scrolling problem
    // if using view coordinates because view coordinates
    // can get transformed
    grabOrigin = [event locationInWindow];

    NSClipView *contentView;
    contentView = (NSClipView*)[layerView superview];

    scrollOrigin = [contentView bounds].origin;

} // mouseDown


- (void) mouseDragged: (NSEvent *) event
{
    NSPoint mousePoint;
    mousePoint = [event locationInWindow];

    float deltaX, deltaY;
    deltaX = grabOrigin.x - mousePoint.x;
    deltaY = mousePoint.y - grabOrigin.y;

    NSPoint newOrigin;
    newOrigin = NSMakePoint (scrollOrigin.x + deltaX,
                             scrollOrigin.y + deltaY);

    [layerView scrollPoint: newOrigin];

} // mouseDragged
...

@end // Blah

- (void) keyDown: (NSEvent *) event
{
    NSString *chars = [event characters];
    unichar character = [chars characterAtIndex: 0];

    if (character == 27) {
        NSLog (@"ESCAPE!");
    }
} // keyDown

- (void) keyDown: (NSEvent *) event
{
    NSString *chars = [event characters];
    unichar character = [chars characterAtIndex: 0];

    if (character == NSDeleteCharacter) {
        NSLog (@"Delete!");
    }
} // keyDown

- (NSArray *) layers
{
    return (layers);
} // layers


- (void) insertObject: (id) obj
      inLayersAtIndex: (unsigned) index
{
    [layers insertObject: obj  atIndex: index];
} // insertObjectInLayers


- (void) removeObjectFromLayersAtIndex: (unsigned) index
{
    [layers removeObjectAtIndex: index];
} // removeObjectFromLayersAtIndex

The selector gets posted after a sub event loop finishes. You can use this for finding out when a live slider is done being manipulated, for instance

First, in the +initialize for the class that's going to be observed:

+ (void) initialize
{
    NSArray *keys;
    keys = [NSArray arrayWithObjects: @"showMajorLines", @"minorWeight",
                    @"minorColor", @"minorWeightIndex", @"minorColorIndex",
                    @"majorWeightIndex", @"majorColorIndex", nil];

    [BWGridAttributes
        setKeys: keys
        triggerChangeNotificationsForDependentKey: @"gridAttributeChange"];

} // initialize

- (BOOL) gridAttributeChange
{
    return (YES);
} // gridAttributeChange

- (void) setGridAttributes: (BWGridAttributes *) a
{
    [attributes removeObserver: self
                forKeyPath: @"gridAttributeChange"];

    [a retain];
    [attributes release];
    attributes = a;

    [a addObserver: self
       forKeyPath: @"gridAttributeChange"
        options: NSKeyValueObservingOptionNew
        context: NULL];

} // setGridAttributes

First step was to make the tools inherit from NSResponder:

@interface BWTool : NSResponder
{
    // blah
}
// ... more blah
@end // BWTool

- (void) setTool: (BWTool *) newTool
{
    NSResponder *nextResponder;

    // this is the next element in the chain

    if (currentTool != nil) {
        nextResponder = [currentTool nextResponder];
    } else {
        nextResponder = [self nextResponder];
    }

    // decide who gets to point to the next responder

    if (newTool != nil) {
        // stick the tool into the chain
        [self setNextResponder: newTool];
        [newTool setNextResponder: nextResponder];

    } else {
        // cut the tool out of the chain (if there was one)
        [self setNextResponder: nextResponder];
    }

    [newTool retain];
    [currentTool release];

    currentTool = newTool;

} // setDrawTool

To make editing end, you need to subclass NSTableView and add code to catch the textDidEndEditing delegate notification, massage the text movement value to be something other than the return and tab text movement, and then let NSTableView handle things.

// make return and tab only end editing, and not cause other cells to edit

- (void) textDidEndEditing: (NSNotification *) notification
{
    NSDictionary *userInfo = [notification userInfo];

    int textMovement = [[userInfo valueForKey:@"NSTextMovement"] intValue];

    if (textMovement == NSReturnTextMovement
        || textMovement == NSTabTextMovement
        || textMovement == NSBacktabTextMovement) {

        NSMutableDictionary *newInfo;
        newInfo = [NSMutableDictionary dictionaryWithDictionary: userInfo];

        [newInfo setObject: [NSNumber numberWithInt: NSIllegalTextMovement]
                 forKey: @"NSTextMovement"];

        notification =
            [NSNotification notificationWithName: [notification name]
                                       object: [notification object]
                                       userInfo: newInfo];

    }

    [super textDidEndEditing: notification];
    [[self window] makeFirstResponder:self];

} // textDidEndEditing

- (BOOL) tableView: (NSTableView *) view
         writeRows: (NSArray *) rows
      toPasteboard: (NSPasteboard *) pboard

- (NSDragOperation) tableView: (NSTableView *) view
                 validateDrop: (id ) info
                  proposedRow: (int) row
        proposedDropOperation: (NSTableViewDropOperation) op
{
    // have the table highlight on-row / between-row correctly
    [view setDropRow: row
          dropOperation: op];

    // or use whatever drag operation is appropriate
    NSDragOperation dragOp = NSDragOperationCopy;

    return (dragOp);

} // validateDrop

- (BOOL) tableView: (NSTableView *) view
        acceptDrop: (id ) info
               row: (int) row
     dropOperation: (NSTableViewDropOperation) op
{
    if (op == NSTableViewDropOn) {
        // replace existing

    } else if (op == NSTableViewDropAbove) {
        // add new

    } else {
        NSLog (@"unexpected operation (%d) in %s",
               op, __FUNCTION__);
    }

    // documentation doesn't actually say what this signifies
    return (YES);

} // acceptDrop

StitchEdit[3522] *** class error for 'BWRawPath': class not loaded

In a convenient place (like in the +load method of your class), use NSUnarchiver's decodeClassName:asClassName:

@implementation BWSymbol

+ (void) load
{
    [NSUnarchiver decodeClassName: @"BWRawPath"
                  asClassName: @"BWSymbol"];
 
    // No need to [super load] - the superclass +load has already
    // been invoked automatically by the runtime.

} // load

(Thanks to Greg Miller for spotting an error in this quickie)

- (NSString *) windowTitleForDocumentDisplayName: (NSString *) displayName
{
    NSString *string;
    string = [NSString stringWithFormat: @"Overview of %@", displayName];

    return (string);

} // windowTitleForDocumentDisplayName

- (void) windowDidLoad
{
    [super windowDidLoad];

    [self setShouldCascadeWindows: NO];
    [self setWindowFrameAutosaveName: @"pannerWindow"];

    // and any other windowDidLoad work to be done
} // windowDidLoad

In the header file

#import <Cocoa/Cocoa.h>

@interface BWSearchArrayController : NSArrayController
{
    NSString *searchString;
}

- (IBAction) search: (id) sender;

@end // BWSearchArrayController

// returns an array containing the content of the objects arranged
// with the user's critera entered into the search box thingie

- (NSArray *) arrangeObjects: (NSArray *) objects
{
    // result of the filtering
    NSArray *returnObjects = objects;

    // if there is a search string, use it to compare with the
    // search field string

    if (searchString != nil) {

        // where to store the filtered
        NSMutableArray *filteredObjects;
        filteredObjects = [NSMutableArray arrayWithCapacity: [objects count]];

        // walk the enumerator
        NSEnumerator *enumerator = [objects objectEnumerator];

        id item; // actully BWFileEntries
        while (item = [enumerator nextObject]) {

            // get the filename from the entry
            NSString *filename;
            filename = [item valueForKeyPath: @"fileName"];

            // see if the file name matches the search string
            NSRange range;
            range = [filename rangeOfString: searchString
                              options: NSCaseInsensitiveSearch];

            // found the search string in the file name, add it to
            // the result set
            if (range.location != NSNotFound) {
                [filteredObjects addObject: item];
            }
        }

        returnObjects = filteredObjects;
    }

    // have the superclass arrange them too, to pick up NSTableView sorting
    return ([super arrangeObjects:returnObjects]);

} // arrangeObjects

- (void) setSearchString: (NSString *) string
{
    [searchString release];

    if ([string length] == 0) {
        searchString = nil;
    } else {
        searchString = [string copy];
    }

} // setSearchString


- (void) search: (id) sender
{
    [self setSearchString: [sender stringValue]];
    [self rearrangeObjects];

} // search

- (NSBezierPath *) makePathFromString: (NSString *) string
                              forFont: (NSFont *) font
{
    NSTextView *textview;
    textview = [[NSTextView alloc] init];

    [textview setString: string];
    [textview setFont: font];

    NSLayoutManager *layoutManager;
    layoutManager = [textview layoutManager];

    NSRange range;
    range = [layoutManager glyphRangeForCharacterRange:
                               NSMakeRange (0, [string length])
                           actualCharacterRange: NULL];
    NSGlyph *glyphs;
    glyphs = (NSGlyph *) malloc (sizeof(NSGlyph)
                                 * (range.length * 2));
    [layoutManager getGlyphs: glyphs  range: range];

    NSBezierPath *path;
    path = [NSBezierPath bezierPath];

    [path moveToPoint: NSMakePoint (20.0, 20.0)];
    [path appendBezierPathWithGlyphs: glyphs
          count: range.length  inFont: font];

    free (glyphs);
    [textview release];

    return (path);

} // makePathFromString

Set it "permanently" via

% defaults write com.apple.TextEdit NSShowAllViews YES

/Developer/Applications/Xcode.app/Contents/MacOS/Xcode -NSShowAllViews YES

    [[scrollView contentView] setPostsBoundsChangedNotifications: YES];

    NSNotificationCenter *center = [NSNotificationCenter defaultCenter] ;
    [center addObserver: self
            selector: @selector(boundsDidChangeNotification:)
            name: NSViewBoundsDidChangeNotification
            object: [scrollView contentView]];
...

- (void) boundsDidChangeNotification: (NSNotification *) notification
{
    [self setNeedsDisplay: YES];
    // or whatever work you need to do

} // boundsDidChangeNotification

    [[scrollView contentView] scrollToPoint: pointToScrollTo];
    [scrollView reflectScrolledClipView: [scrollView contentView]];

1. make the new project
2. replace MyDocument with the newDocument name (BWGraphDocument here):
   perl -pi -e 's/MyDocument/BWGraphDocument/g' *.[hm] *.xcodeproj/* *.plist
3. rename the document files:
   mv MyDocument.h BWGraphDocument.h
mv MyDocument.m BWGraphDocument.m
4. rename the nib file:
   mv MyDocument.nib BWGraphDocument.nib
5. open the nib file, drag in your document header and change the class of the File's Owner to the new class. Delete the MyDocument type.

- (void) resetCursorRects
{
    [super resetCursorRects];
    [self addCursorRect: [self bounds]
          cursor: [NSCursor crosshairCursor]];

} // resetCursorRects

The directories inside of Library, like "Preferences" and "Application Support" are in English in the file system, and the Finder presents localized versions to the user. If you need ~/Library/Application Support/Borkware, you can construct it like

   NSMutableString *path;
    path = [[NSMutableString alloc] init];

    // find /User/user-name/Library
    NSArray *directories;
    directories = NSSearchPathForDirectoriesInDomains (NSLibraryDirectory,
                                                       NSUserDomainMask, YES);

    // if you had more than one user domain, you would walk directories and
    // work with each path
    [path appendString: [directories objectAtIndex: 0]];

    [path appendString: @"/Application Support"];
    [path appendString: @"/Borkware"];

1. Make an IBOutlet in your controller to point to the NSObjectController
2. Drag an NSObjectController into the nib
3. Add the names of the properties you're going to be binding with
4. in AppController's awakeFromNib method, do [objController setContent: self];

- (id) valueForUndefinedKey: (NSString *) key
{
    id value;
    value = [self lookUpValueUsingSomeOtherMechanism: key];

    if (value == nil) {
        value = [super valueForUndefinedKey: key];
    }

    return (value);

} // valueForUndefinedKey

The counterpart for this is

- (void) setValue: (id) value forUndefinedKey: (NSString *) key, which you can use to stash stuff into user prefs or a dictionary.

[imageView bind: @"valuePath"
           toObject: imagesController
           withKeyPath: @"selection.fullPath"
           options: nil];

Use

    [imageView unbind: @"valuePath"];

ProductName:    Mac OS X
ProductVersion: 10.3.7
BuildVersion:   7S215

    NSRect selectionRect = ...;
    NSValue *value;
    value = [NSValue valueWithRect: selectionRect];

    if ([event modifierFlags] & NSShiftKeyMask) {
        constrain = YES;
    } 

• GetCurrentEventKeyModifiers returns the modifiers of the last event processed by the event dispatcher. This is usually sufficient.
• GetCurrentKeyModifiers returns the hardware state of the modifiers.

(thanks to xmath on #macdev for this one)

1. Move (not copy) the original to a backup name. This will preserve the timestamp: % sudo mv rc rc-orig

2. Copy the original to the usual name: % sudo cp rc-orig rc

3. make your edits: % sudo vi rc

Thereby undoing your changes, and not messing up the timestamp of the original file.

(mucho thankos to Louis Bertrand for this one)

#!/usr/bin/perl

while (<>) {
    $_ =~ s/<[^>]*>//gs;
    print $_;
}

This method will take a string and feed it through the perl script:

- (NSString *) stringStrippedOfTags: (NSString *) string
{
    NSBundle *bundle = [NSBundle mainBundle];
    NSString *stripperPath;
    stripperPath = [bundle pathForAuxiliaryExecutable: @"stripper.pl"];

    NSTask *task = [[NSTask alloc] init];
    [task setLaunchPath: stripperPath];

    NSPipe *readPipe = [NSPipe pipe];
    NSFileHandle *readHandle = [readPipe fileHandleForReading];

    NSPipe *writePipe = [NSPipe pipe];
    NSFileHandle *writeHandle = [writePipe fileHandleForWriting];

    [task setStandardInput: writePipe];
    [task setStandardOutput: readPipe];

    [task launch];

    [writeHandle writeData: [string dataUsingEncoding: NSASCIIStringEncoding]];
    [writeHandle closeFile];

    NSMutableData *data = [[NSMutableData alloc] init];
    NSData *readData;

    while ((readData = [readHandle availableData])
           && [readData length]) {
        [data appendData: readData];
    }

    NSString *strippedString;
    strippedString = [[NSString alloc]
                         initWithData: data
                         encoding: NSASCIIStringEncoding];

    [task release];
    [data release];
    [strippedString autorelease];

    return (strippedString);

} // stringStrippedOfTags

tr '\r' '\n' < macfile.txt > unixfile.txt

int AmIBeingDebugged(void)
{
        int                                        mib[4];
        struct kinfo_proc        info;
        size_t                                size;
        
        mib[0] = CTL_KERN;
        mib[1] = KERN_PROC;
        mib[2] = KERN_PROC_PID;
        mib[3] = getpid();
        size = sizeof(info);
        info.kp_proc.p_flag = 0;
        sysctl(mib,4,&info,&size,NULL,0);
        return ((info.kp_proc.p_flag & P_TRACED) == P_TRACED);
}

#define StopIfInDebugger()        __asm__ volatile ("twnei %0,0" : : "r" (AmIBeingDebugged()))

ld: Undefined symbols:
.objc_class_name_BWTrackerPlugin

[self lockFocus];

NSBitmapImageRep *bits;
bits = [[NSBitmapImageRep alloc]
           initWithFocusedViewRect: [self bounds]];
[self unlockFocus];

If you want to retain the vectoritude of the drawing, you can use [self dataWithPDFInsideRect: [self bounds]], and then make an NSPDFImageRep. Avoid theNSEPSImageRep since it makes a trip through NSPDFImageRep along with a slow PS to PDF conversion. (Thanks to Peter Hosey for the PDF hint)

NSBitmapImageRep *bits = ...; // get a rep from your image, or grab from a view

NSData *data;
data = [bits representationUsingType: NSPNGFileType
             properties: nil];
[data writeToFile: @"/path/to/wherever/test.png"
      atomically: NO];

select to_char (whenx, 'fmDD fmMonth YYYY') as pretty_when, text
  from blog
 where whenx > (current_timestamp - interval '21 days')
 order by whenx desc

- (void) runEventTrackingRunLoop
{
    NSEventType eventType = NSLeftMouseDown;

    unsigned int eventMask = NSLeftMouseDownMask | NSLeftMouseUpMask
        | NSLeftMouseDraggedMask | NSMouseMovedMask;

    while (eventType != NSLeftMouseUp) {
        NSEvent *event;
        event = [NSApp nextEventMatchingMask: eventMask
                       untilDate: [NSDate distantFuture]
                       inMode: NSEventTrackingRunLoopMode
                       dequeue: YES];

        eventType = [event type];

        if (eventType == NSLeftMouseDragged) {
            [self mouseDragged: event];
        }
    }

} // runEventTrackingRunLoop

(gdb) print (char*) $r4
$5 = 0x90874160 "drawRect:"

(gdb) po $r5
<BWStitchView: 0x1a6670>

    NSDocumentController *documentController;
    documentController = [NSDocumentController sharedDocumentController];

    BWBorkStitchDocument *noteDocument;
    noteDocument = [documentController documentForWindow: noteWindow];

1. Create a "AppName Help" directory in your English.lproj.

2. Add an index.html Put in these headers:

   <head>
     <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
     <title>AppName Help</title>
     <meta name="AppleTitle" content="AppName Help">
     <meta name="AppleIcon" content="AppName%20Help/images/icon-name.png">
     <meta name="AppleFont" content="Lucida Grande,Helvetica,Arial">
     <meta name="AppleSearchResultsFont" content="Lucida Grande,Geneva,Arial">
     <meta name="robots" content="noindex">
   </head>
   

   Along with your actual help content.

3. Drag the AppName Help directory into your XCode project. When Adding, make sure "Copy items into destination group's folder" is unchecked, and select "Create Folder References for any add folders". You wnat XCode to preserve your AppName Help directory.

4. Add these to your Info.plist:

   <key>CFBundleHelpBookFolder</key>
   <string>AppName Help</string>
   <key>CFBundleHelpBookName</key>
   <string>AppName Help</string>
   

5. Build, run, and cross your fingers. If Help.app is already running, you may want to exit it.

% defaults write com.apple.CrashReporter DialogType none

Turn turn it back on, replace none with prompt to get the original behavior. See for details.

- (void) keyDown: (NSEvent *) event
{
    NSString *characters;
    characters = [event characters];

    unichar character;
    character = [characters characterAtIndex: 0];

    if (character == NSRightArrowFunctionKey) {
        [self moveSelectedBlockBy: 1];

    } else if (character == NSLeftArrowFunctionKey) {
        [self moveSelectedBlockBy: -1];

    }  ... and look at whatever other keys you want
}

    [[self windowController] setShouldCascadeWindows: NO];

    NSWindow *window;
    window = [self window];
    [window setFrame: loadedWindowBounds display: YES];

1. Make an id instance variable in your class, and make methods to set and get it:

   id   delegate;
   ...
   -(void) setDelegate: (id) del
   {
       delegate = del; // you don't need to retain it
   } // setDelegate
   
   - (id) delegate
   {
       return (delegate);
   } // delegate
   

2. Make a category on NSObject so the compiler won't generate warnings, and also to document the delegate methods you support:

   @interface NSObject(BWStitchViewDelegate)
   - (BOOL) shouldHandleStuff: (NSData *) data;
   @end
   

3. Check to make sure your delegate understands the message before sending it.

   ...
   if ([delegate respondsToSelector: @selector(shouldHandleStuff:)]) {
       BOOL blah;
       blah = [delegate shouldHandleStuff: somedata];
       if (blah) ...
   }
   

    time_t now;
    now = time(NULL);

    struct tm *tm;
    tm = localtime (&now);

    char timestamp[200];
    strftime (timestamp, 200, "%m/%d/%Y-%H:%M", tm);

If you're expecting to have an excessively high number of retains, you can use (unsigned int) in the cast. I find (int) a skootch faster to type.

(gdb) call (void)[textField setStringValue: @"Bork"]

- (void) controlTextDidChange: (NSNotification *) notification
{
    // do work here, like count the characters or something
} // controlTextDidBeginEditing

set completion-ignore-case On

Then when you type ls /appli in the shell you'll get ls /Applications/ like you ought to!

- (NSData *) dataRepresentationOfType: (NSString *) aType
{
    NSData *data;
    data = [NSArchiver archivedDataWithRootObject: group];

    return (data);

} // dataRepresentationOfType

- (BOOL) loadDataRepresentation: (NSData *) data
                         ofType: (NSString *) aType
{
    // replace the moedl
    [group release];
    group = [NSUnarchiver unarchiveObjectWithData: data];
    [group retain];

    // make any associations to hook the new data into your document

    return (YES);

} // loadDataRepresentation

ld: multiple definitions of symbol OpenSP::Text::~Text [in-charge]()
Entity.lo definition of OpenSP::Text::~Text [in-charge]() in section (__TEXT,__text)
Group.lo definition of OpenSP::Text::~Text [in-charge]() in section (__TEXT,__text)
ld: multiple definitions of symbol OpenSP::Text::~Text [not-in-charge]()
Entity.lo definition of OpenSP::Text::~Text [not-in-charge]() in section (__TEXT,__text)
Group.lo definition of OpenSP::Text::~Text [not-in-charge]() in section (__TEXT,__text)
Param.lo definition of OpenSP::Text::~Text [in-charge]() in section (__TEXT,__text)
Param.lo definition of OpenSP::Text::~Text [not-in-charge]() in section (__TEXT,__text)

Text::~Text() { }

~Text();

gcc -dynamiclib  -o .libs/libogrove.0.0.1.dylib  Node.lo LocNode.lo  -lm -lc -install_name  /usr/local/lib/libogrove.0.dylib
ld: Undefined symbols:
vtable for __cxxabiv1::__class_type_info
vtable for __cxxabiv1::__si_class_type_info
operator delete(void*)
operator new(unsigned long)
___cxa_pure_virtual
___gxx_personality_v0
/usr/bin/libtool: internal link edit command failed

% drutil info
 Vendor   Product           Rev 
 PIONEER  DVD-RW  DVR-104   A227

   Interconnect: ATAPI
   SupportLevel: Apple Shipping
          Cache: 2000k
       CD-Write: -R, -RW, BUFE, Test, IndexPts, ISRC
      DVD-Write: -R, -RW, BUFE, Test
     Strategies: CD-TAO, CD-SAO, DVD-DAO

- (NSDragOperation) tableView: (NSTableView*) tableView
                 validateDrop: (id ) info
                  proposedRow: (int) row
        proposedDropOperation: (NSTableViewDropOperation) op
{
    int result = NSDragOperationNone;

    if (op == NSTableViewDropAbove) {
        result = NSDragOperationMove;
    }

    return (result);

} // validateDrop

- (void) textDidEndEditing: (NSNotification *) notification
{
    NSDictionary *userInfo;
    userInfo = [notification userInfo];

    NSNumber *textMovement;
    textMovement = [userInfo objectForKey: @"NSTextMovement"];

    int movementCode;
    movementCode = [textMovement intValue];

    // see if this a 'pressed-return' instance

    if (movementCode == NSReturnTextMovement) {
        // hijack the notification and pass a different textMovement
        // value

        textMovement = [NSNumber numberWithInt: NSIllegalTextMovement];

        NSDictionary *newUserInfo;
        newUserInfo = [NSDictionary dictionaryWithObject: textMovement
                                    forKey: @"NSTextMovement"];

        notification = [NSNotification notificationWithName:
                                           [notification name]
                                       object: [notification object]
                                       userInfo: newUserInfo];
    }

    [super textDidEndEditing: notification];

} // textDidEndEditing

    NSImage *indicatorImage;
    if (sortAscending) {
        sort your data ascending
        indicatorImage = [NSImage imageNamed: @"NSAscendingSortIndicator"];
    } else {
        sort your data descending
        indicatorImage = [NSImage imageNamed: @"NSDescendingSortIndicator"];
    }
    sortAscending = !sortAscending;

    [tableView setIndicatorImage: indicatorImage
                   inTableColumn: tableColumn];

    [tableView reloadData];

- (void) tableViewSelectionDidChange: (NSNotification *) notification
{
    int row;
    row = [tableView selectedRow];

    if (row == -1) {
        do stuff for the no-rows-selected case
    } else {
        do stuff for the selected row
    }

} // tableViewSelectionDidChange

- (BOOL) respondsToSelector: (SEL) aSelector
{
    NSLog (@"%s", (char *) aSelector);
    return ([super respondsToSelector: aSelector]);

} // respondsToSelector

NSDate *today;
today = [NSDate date];

• Format : AIFF
• Encoding : PCM
• Rate : 44100 Hz
• Bits : 16 bits

Addendum: NSSound is based on Core Audio and QuickTime as of 10.3, so it may be able to play .snd resource files as-is. So give that a try if you don't need to support 10.2 or earlier. (Thanks to Peter Hosey for the clarification.)

(setq c-mode-hook
    (function (lambda ()
                (setq indent-tabs-mode nil)
                (setq c-indent-level 4))))
(setq objc-mode-hook
    (function (lambda ()
                (setq indent-tabs-mode nil)
                (setq c-indent-level 4))))
(setq c++-mode-hook
    (function (lambda ()
                (setq indent-tabs-mode nil)
                (setq c-indent-level 4))))

[panel setHidesOnDeactivate: NO];

- (int) numberOfRowsInTableView: (NSTableView *) tableView
- (id) tableView: (NSTableView *) tableView
objectValueForTableColumn: (NSTableColumn *) tableColumn
row: (int) row


extern NSString *BWStitchGroup_VisualAttributeChangeNotification;

In the .m file:

NSString *BWStitchGroup_VisualAttributeChangeNotification
    = @"BWStitchGroup Visual Attribute Change Notification";
...

NSNotificationCenter *center;
center = [NSNotificationCenter defaultCenter];

[center postNotificationName: 
            BWStitchGroup_VisualAttributeChangeNotification
        object: self];

    NSDictionary *userInfo = ...;
    [center postNotificationName: BWStitchGroup_VisualAttributeChangeNotification
            object: self
            userInfo: userInfo];

NSNotificationCenter *center;
center = [NSNotificationCenter defaultCenter];

[center addObserver: self
        selector: @selector(groupVisualChange:)
        name: BWStitchGroup_VisualAttributeChangeNotification
        object: group];

- (void) groupVisualChange: (NSNotification *) notification
{
    // do stuff with the notification
} // groupVisualChange

- (NSString*) title
{
    return (title);
} // title

- (void) setTitle: (NSString *) newTitle
{
    [title autorelease];
    title = [newTitle copy];
} // setTitle

- (NSString *) title
{
    return [[title retain] autorelease];
} // title

- (void) setTitle: (NSString *) newTitle
{
    // use a mutex or NSLock to protect this
    if (title != newtitle) {
        [title release];
        title = [newTitle copy];
    }
} // setTitle

For folks stuck in 10.2 land, or who want to do it themselves, there's always this:

- (NSWindow *) window
{
    NSArray *windowControllers;
    windowControllers = [self windowControllers];

    NSWindowController *controller;
    controller = [windowControllers objectAtIndex: 0];

    NSWindow *window;
    window = [controller window];

    return (window);

} // window

    NSTask *task;
    task = [[NSTask alloc] init];
    [task setLaunchPath: @"/bin/ls"];

    NSArray *arguments;
    arguments = [NSArray arrayWithObjects: @"-l", @"-a", @"-t", nil];
    [task setArguments: arguments];

    NSPipe *pipe;
    pipe = [NSPipe pipe];
    [task setStandardOutput: pipe];

    NSFileHandle *file;
    file = [pipe fileHandleForReading];

    [task launch];

    NSData *data;
    data = [file readDataToEndOfFile];

    NSString *string;
    string = [[NSString alloc] initWithData: data
                               encoding: NSUTF8StringEncoding];
    NSLog (@"woop!  got\n%@", string);

    NSTask *task;
    task = [[NSTask alloc] init];
    [task setLaunchPath: @"/bin/sh"];

    NSArray *arguments;
    arguments = [NSArray arrayWithObjects: @"-c",
                         @"cat /usr/share/dict/words | grep -i ham | rev | tail -5", nil];
    [task setArguments: arguments];
    // and then do all the other jazz for running an NSTask.

- (id) initWithCoder: (NSCoder *) aDecoder
{
    if (self = [super init]) {
        // or else [super initWithCoder: aDecoder] if your superclass
        // supports it.  NSObject does not.

        // decoding a C type
        [aDecoder decodeValueOfObjCType: @encode(int)
                  at: &itemCount];

        // decoding an array of C structs
        if (items != NULL) {
            free (items);
        }
        items = malloc (sizeof(BWRawPathItem) * itemCount);

        int i;
        for (i = 0; i < itemCount; i++) {
            [aDecoder decodeValueOfObjCType: @encode(BWRawPathItem)
                      at: &items[i]];
        }

        // decoding an object
        name = [aDecoder decodeObject];
        [name retain];

        // any other random initializations that don't come from
        // the encoder
        fooby = -1;
    }

    return (self);

} // initWithCoder

- (void) encodeWithCoder: (NSCoder *) aCoder
{
    // [super encodeWithCoder:] if you inherit from a class
    // that supports encoding.  NSObject does not.

    // encoding a C type
    [aCoder encodeValueOfObjCType: @encode(int)
            at: &itemCount];

    // encoding an array of C structs
    int i;
    for (i = 0; i < itemCount; i++) {
        [aCoder encodeValueOfObjCType: @encode(BWRawPathItem)
                at: &items[i]];
    }

    // encoding an object
    [aCoder encodeObject: name];

} // encodeWithCoder

    NSString *filename = @"/this/is/my/file/path";

    NSData *data;
    data = [NSData dataWithContentsOfFile: filename];

    NSString *filename = @"/my/original/file/name";
    NSString *tildeFilename;
    tildeFilename = [NSString stringWithFormat: @"%@~", filename];

    // remove it first, otherwise the move will fail
    [defaultManager removeFileAtPath: tildeFilename
                    handler: nil];

    // now rename the file
    [defaultManager movePath: filename
                    toPath: tildeFilename
                    handler: nil];

	NSString *pathExtension = [filename pathExtension];
	if (!pathExtension) {
		tildeFilename = [filename stringByAppendingString: @"~"];
	} else {
		tildeFilename = [NSString stringWithFormat: @"%@~.%@", [filename stringByDeletingPathExtension], pathExtension];
	}

    NSFileManager *defaultManager;
    defaultManager = [NSFileManager defaultManager];

    [defaultManager removeFileAtPath: tildeFilename
                    handler: nil];

    NSString *filename = @"/this/is/my/file/name";
    NSData *data = // get NSData from somewhere, like NSPropertyListSerialization

   [data writeToFile: filename  atomically: NO];

    NSData *data = // get NSData from somewhere, like NSFileManager
    if (data) {
        myRootObject = [NSPropertyListSerialization
                           propertyListFromData: data
                           mutabilityOption: NSPropertyListMutableContainers
                           format: nil
                           errorDescription: nil];
    }

    NSData *data;
    data = [NSPropertyListSerialization
               dataFromPropertyList: notes
               format: NSPropertyListXMLFormat_v1_0
               errorDescription: nil];

% find . -type f -perm +06000 -print

(or use find / to start looking from the root directory.)

- (void) awakeFromNib
{
    [browser setTarget: self];
    [browser setDoubleAction: @selector(browserDoubleClick:)];
} // awakeFromNib

...

- (IBAction) browserDoubleClick: (id) sender
{
    int column = [browser selectedColumn];
    int row = [browser selectedRowInColumn: column];

    // then dig into your data structure with the row and column

} // browserDoubleClick

#include <stdarg.h>

void LogIt (NSString *format, ...)
{
    va_list args;

    va_start (args, format);

    NSString *string;

    string = [[NSString alloc] initWithFormat: format  arguments: args];

    va_end (args);

    fprintf (stderr, "%s\n", [string UTF8String]);

    [string release];

} // LogIt

(you can put in another number besides zero to scroll the line with the cursor to that particular line in the buffer)

psql=# select to_timestamp('10:45am', 'HH12:MIam')::timetz::time;
 to_timestamp
--------------
 10:45:00
(1 row)

tweak some values, like

sysctl -w kern.sysv.shmmax=167772160 # bytes: 160 megs
sysctl -w kern.sysv.shmmin=1
sysctl -w kern.sysv.shmmni=32
sysctl -w kern.sysv.shmseg=8
sysctl -w kern.sysv.shmall=65536 # 4k pages: 256 megs

On some Panther seeds, you may need to add these things to /etc/rc

% pl < Localizable.strings

#include <sys/time.h>
struct timeval start, end;
...
gettimeofday (&start, NULL);

... the code you're timing

gettimeofday (&end, NULL);
double fstart, fend;
fstart = (start.tv_sec * 1000000.0 + start.tv_usec) / 1000000.0;
fend = (end.tv_sec * 1000000.0 + end.tv_usec) / 1000000.0;
NSLog (@"it took %f seconds", fend - fstart);

if ([NSBundle loadNibNamed: @"theNibName.nib"  owner: self]) {
    ... life is happy
} else {
    ... couldn't load the nib
}

Similarly, there is a floatValue and doubleValue NSString methods.

- (BOOL) validateMenuItem: (id <NSMenuItem>) menuItem
{
    BOOL result = YES;

    if ([menuItem action] == @selector(deleteNote:)) {
        if ([notes count] == 1) {
            result = NO; // can't delete the last note
        }

    } else if ([menuItem action] == @selector(gotoNote:)) {
        if ([notes count] == 1) {
            result = NO; // can't go to a different not if only one
        }
    }

    return (result);

} // validateMenuItem

user_pref("browser.urlbar.autocomplete.enabled", false);

or you can surround it with quotes: % cd "/Users/bork/Library/Screen Savers"

Note that tilde expansion (~/Library) is suppressed if you use the quotes.

- (BOOL) isPartialStringValid: (NSString **) partialStringPtr
        proposedSelectedRange: (NSRangePointer) proposedSelRangePtr
               originalString: (NSString *) origString
        originalSelectedRange: (NSRange) origSelRange
             errorDescription: (NSString **) error
{
    NSCharacterSet *nonDigits;
    NSRange newStuff;
    NSString *newStuffString;

    nonDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
    newStuff = NSMakeRange(origSelRange.location,
                           proposedSelRangePtr->location
                           - origSelRange.location);
    newStuffString = [*partialStringPtr substringWithRange: newStuff];

    if ([newStuffString rangeOfCharacterFromSet: nonDigits
            options: NSLiteralSearch].location != NSNotFound) {
        *error = @"Input is not an integer";
        return (NO);
    } else {
        *error = nil;
        return (YES);
    }

} // isPartialStringValid

- (void) sendEvent: (NSEvent *) anEvent
{
    if ([anEvent type] == NSKeyDown) {
        [someOtherWindow sendEvent: anEvent];

    } else {
        [super sendEvent: anEvent];
    }

} // sendEvent

- (BOOL) keepBackupFile
{
    return (YES);
} // keepBackupFile

NSOnState also works.

The signal still goes to your program. Another handy option is 'ignore' to prevent it coming to the program. Also there is 'print' to print a message go on.

1. % ssh-keygen -t rsa
   (don't use a passphrase. Just hit return twice)

2. % scp ~/.ssh/id_rsa.pub gitdown.com:

3. On the remote machine (gitdown)
   

   % cat ~/id_rsa.pub >> ~/.ssh/authorized_keys

% ps -axo user,pid,ppid,vsz,tt,state,start,time,command

% grep -l rzolf *.ham | xargs open

setenv CVSROOT :pserver:username@anoncvs.opensource.apple.com:/cvs/Darwin

    NSRange range;
    range = NSMakeRange ([[textView string] length], 0);

    [textView replaceCharactersInRange: range withString: string];

    [[[textView textStorage] mutableString] appendString: string];

    NSRange range;
    range = NSMakeRange ([[textView string] length], 0);

    [textView scrollRangeToVisible: range];

(setq c-default-style "bsd"
      c-basic-offset 4)

(setq comint-highlight-input nil)

(setq search-highlight nil)

You may also need to 
(setq isearch-lazy-highlight nil)

To turn off underlining of matching results. Only some OS X installs need this setting.

% /System/Library/Frameworks/ScreenSaver.framework/Resources/ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine -background &

(all one command)

% cvs checkout -D "3 days ago" blork

Or via a date (month/day/year)

% cvs checkout -D "10/17/2002" fnord

or recently in time

% cvs diff -D "1 hour ago" ook.blah

The other is to use shell completion to put in the backslashes for you. In the above path, if you type
% cd /Users/bork/development/cool[tab], it'll expand "cool stuff" for you.

% cp /Developer/Tools/cvswrappers ~/.cvswrappers

You can also add the contents of that fike to your repository.

.pbproj files aren't handled by the cvswrappers by default. You'll need to add a line like this:

*.pbproj -k 'b' -f '/Developer/Tools/cvs-unwrap %s' -t '/Developer/Tools/cvs-wrap %s %s' -m 'COPY'

• % sudo mkdir /Volumes/Wikkit/backup
• % cd /Users
• % sudo hfstar cf - bork | (cd /Volumes/Wikkit/backup; sudo hfstar xf -)

To Restore:

• % cd /Users
• % sudo mv bork bork-orig
• % cd /Volumes/Wikkit/backup
• % sudo hfstar cf - bork | (cd /Users; sudo hfstar xf -)

Some folks have had success with psync, but we haven't used it yet.

% tar cf - dir-name | (cd /destination-dir; tar xf -)

In English: tar out through a pipe into a subshell that's changed directories, feeding that pipe into the tar extraction. If you run both sides of the pipeline as root (via sudo), the file owners and permissions will be preserved (which cp won't do)

In this particular case, I had a type I had declared with:
@class BWConcreteType; and later on I had decided to turn it into an enum:
typedef enum BWConcreteType { ... } BWConcreteType; 
without removing the previous @class declaration. So be on the look out for conflicting types for the same symbol.

#import 
int main (int argc, char *argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    [pool release];

} // main

And you can compile it on the command line with:

cc -o test -framework Foundation file-name.m

• run disk copy, make a new blank image. I'm calling mine "thingie"
• copy image file to the mounted fake drive (logo.jpg)
• open fake drive, choose Show View Options. Make sure you're just changing the current window, and not Everything.
• Choose "picture", select the logo.jpg that's on the thingie drive
• resize your window as appropriate
• run this in the terminal to hide the logo.jpg file
  /Developer/Tools/SetFile -a V /Volumes/thingie/logo.jpg
• eject thingie and re-mount it
• you should now see your image, and no visible picture file icon

# niutil -create . /machines/tower
# niutil -createprop . /machines/tower ip_address 10.0.1.155
# niutil niutil -createprop . /machines/tower serves ./local

You can also do this for a passwordless user: % crateuser bork

You may need to also do -setTarget:. double-clicks get sent if the column isn't editable, so you may need to grab the column and do a -setEditable: NO on it.

- (NSImage *) captureScreenImageWithFrame: (NSRect) frame
{
    // Fetch a graphics port of the screen

    CGrafPtr screenPort = CreateNewPort ();
    Rect screenRect;
    GetPortBounds (screenPort, &screenRect);

    // Make a temporary window as a receptacle

    NSWindow *grabWindow = [[NSWindow alloc] initWithContentRect: frame
                                              styleMask: NSBorderlessWindowMask
                                              backing: NSBackingStoreRetained
                                              defer: NO
                                              screen: nil];
    CGrafPtr windowPort = GetWindowPort ([grabWindow windowRef]);
    Rect windowRect;
    GetPortBounds (windowPort, &windowRect);
    SetPort (windowPort);

    // Copy the screen to the temporary window

    CopyBits (GetPortBitMapForCopyBits(screenPort),
              GetPortBitMapForCopyBits(windowPort),
              &screenRect,
              &windowRect,
              srcCopy,
              NULL);

    // Get the contents of the temporary window into an NSImage

    NSView *grabContentView = [grabWindow contentView];

    [grabContentView lockFocus];
    NSBitmapImageRep *screenRep;
    screenRep = [[NSBitmapImageRep alloc] initWithFocusedViewRect: frame];
    [grabContentView unlockFocus];

    NSImage *screenImage = [[NSImage alloc] initWithSize: frame.size];
    [screenImage addRepresentation: screenRep];

    // Clean up
    [grabWindow close];
    DisposePort(screenPort);

    return (screenImage);

} // captureScreenImageWithFrame

    NSURL *url;
    NSData *data;
    NSString *blork;
    url = [NSURL URLWithString: @"http://borkware.com/hacks/random"];
    data = [url resourceDataUsingCache: NO];
    blork = [[NSString alloc] initWithData: data  encoding: NSASCIIStringEncoding];

    NSURL *url;
    NSData *data;
    NSImage *blork;
    url = [NSURL URLWithString: @"http://borkware.com/hacks/random-pic"];
    data = [url resourceDataUsingCache: NO];
    blork = [[NSImage alloc] initWithData: data];

mv: rename build/ to oopack: Is a directory

1. open the Targets pane in Project Builder
2. double-click on your target
3. go to the Build Settings tab
4. Edit your Product Name under General Settings

So, on my machine,

    userPrefs = [ScreenSaverDefaults defaultsForModuleWithName: @"BWDrip"];

    defaults = [NSDictionary dictionaryWithObjectsAndKeys:
                             [NSNumber numberWithFloat: 25.0], @"density",
                             [NSNumber numberWithFloat: 40.0], @"rate",
                             nil];

- (void) handleTimer: (NSTimer *) timer
{
    do some work here...
} // handleTimer

NSTimer *timer;

timer = [NSTimer scheduledTimerWithTimeInterval: 0.5
                 target: self
                 selector: @selector(handleTimer:)
                 userInfo: nil
                 repeats: YES];

To tack on an extension to all files, do something like % ~/bin/rename.pl 's/(.*)/$1.jpg/' *

To see how much each of a directory's contents consume, use
% du -sk dir_name/* | sort -n to get a list ordered by size.

If you want to be studly, you can use -format to tailor the output

% identify -format "insert into bw_graphics values (generate_primary_key(), '/images/llamas/%f', %w, %h);" *.jpg
generates a sql insert statement for each image.

% xcodebuild -configuration "Debug" -target "My Groovy App"

• in your C shell do
  % limit coredumpsize unlimited
  (you can put this into your .cshrc. I don't know what to do for bash)

• Or in your program do
  struct rlimit corelimit = { RLIM_INFINITY, RLIM_INFINITY };
setrlimit (RLIMIT_CORE, &corelimit); You may need to also add
  #include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>

Core files seem to be getting dumped into /cores, rather than the directory the program was run from.

M-x replace-string RET C-Q C-J RET C-Q C-J C-Q C-J RET

Or to put "bloogie " at the beginning of every line

M-x replace-string RET C-Q C-J RET C-Q C-J b l o o g i e SPACE RET

@implementation NSView (BWYellowView)

- (void) drawRect: (NSRect) rect
{
    NSColor *transparentYellow;

    rect = [self bounds];

    transparentYellow = [NSColor colorWithCalibratedRed: 1.0
                                 green: 1.0
                                 blue: 0.0
                                 alpha: 0.333];
    [transparentYellow set];
    [NSBezierPath fillRect: rect];

} // rect

@end // BWYellowView

- (BOOL) _hasEditableCell
{
    return (YES);
} // _hasEditableCell

• NSStringFromRect (someNSRect);
• NSStringFromPoint (someNSPoint);
• NSStringFromSize (someNSSize);

       NSBundle *bundle;
       NSString *path;

       bundle = [NSBundle bundleForClass: [self class]];
       path = [bundle pathForResource: @"atomsymbol"  ofType: @"jpg"];
       image = [[NSImage alloc] initWithContentsOfFile: path];

(For Project Builder, go to /Developer/ProjectBuilder Extras/Project Templates/ and edit the projects there. The changes will take effect next time you create a new project.)

(In Project Builder, open the Targets tab, double-click the target, go to the "Build Settings" tab, scroll down to Build Settings, look for WARNING_CFLAGS. Edit that, and add-Werror to what's already there.)