CCDGrowingTextFieldSample

This is a slightly modified version of CCDGrowingTextField that supports auto resizing text fields. It also doesn’t reset the width of an empty text field to the default width until the user stops editing. –SaileshAgrawal

@interface CCDGrowingTextField : NSTextField { float defaultLeftMargin; float defaultRightMargin; NSRect defaultFrame; }

@end

@interface CCDGrowingTextField(Private)

(void)updateDefaultMargins;
(void)viewDidMoveToSuperview;
(void)resetFrameToDefault;
(void)sizeToFit;
(void)textDidChange: (NSNotification *)notification;
(void)textDidEndEditing:(NSNotification *)notification;

@end

@implementation CCDGrowingTextField

(id)initWithFrame: (NSRect)frame { if ((self = [super initWithFrame:frame])) { defaultFrame = frame; } return self; }
(id)initWithCoder: (NSCoder *)decoder { if ((self = [super initWithCoder:decoder])) { defaultFrame = [self frame]; } return self; }
(void)awakeFromNib { [self updateDefaultMargins]; }

@end // CCDGrowingTextField

@implementation CCDGrowingTextField(Private)

(void)updateDefaultMargins { NSRect myFrame = [self frame]; NSRect superBounds = self superview] bounds]; defaultLeftMargin = [[NSMinX(myFrame); defaultRightMargin = superBounds.size.width - NSMaxX(myFrame); }
(void)viewDidMoveToSuperview { [super viewDidMoveToSuperview]; [self updateDefaultMargins]; }
(void)resetFrameToDefault { NSRect myFrame = [self frame]; if (([self autoresizingMask] & NSViewWidthSizable) != 0) { myFrame.size.width = self superview] bounds].size.width - (myFrame.origin.x + defaultRightMargin); } else { myFrame.size.width = defaultFrame.size.width; } [self setFrame:myFrame]; }
(void)sizeToFit { if ([[self stringValue] isEqualToString:@””] && ![self currentEditor]) { /* * If we’re not in the middle of an editing scession and the text field * is empty then reset our frame to the default size. */ [self resetFrameToDefault]; } else { [super sizeToFit]; [[NSRect myFrame = [self frame];
```
if (([self autoresizingMask] & NSViewWidthSizable) != 0) {
   float curRightMargin = self superview] bounds].size.width - [[NSMaxX(myFrame);
   if (curRightMargin < defaultRightMargin) {
      [self resetFrameToDefault];
   }
} else {
   if (myFrame.size.width > defaultFrame.size.width) {
      [self resetFrameToDefault];
   }
}  } }
```
(void)textDidChange: (NSNotification *)notification { [super textDidChange:notification]; [self sizeToFit]; }
(void)textDidEndEditing:(NSNotification *)notification { [super textDidEndEditing:notification]; [self sizeToFit]; }

@end // CCDGrowingTextField(Private)

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