BorderedShadowedGrowingTextField

I have modified the code at FieldEditorIssues to produce a text field which has the appearance of the AddressBook / Library text fields mentioned in HighlightButtonsLikeDLandAB.

I’m completely at a loss as to how to go about turning one of these into a view with many editable text fields. Does anyone have any suggestions as to the best way to approach this? My preliminary thoughts are:

One view with many strings? Or many of these views in a custom superview? As to the first, how to manage the strings and click handling, for the second, how do we deal with multi-line resizing and moving the elements below?

I’ll post any improvements made back here as it seems to be a popular subject at the moment. -BB

Code follows:

@interface FieldEditorTestView : NSView { NSRect itemRect; NSString *itemTitle; NSSize maxSize; NSTextView *mEditor; IBOutlet NSButton *editButton; }

(void)calculateMaxSize; @end

#import “FieldEditorTestView.h”

@implementation FieldEditorTestView

(BOOL)isFlipped { return YES; }
(BOOL)isOpaque { return NO; }
(void)setString:(NSString *)s { [itemTitle release]; itemTitle = [s retain]; itemRect.size = [itemTitle sizeWithAttributes: nil];

[self calculateMaxSize];

if (itemRect.size.width > maxSize.width) itemRect.size.width = maxSize.width; }
(void)calculateMaxSize { maxSize = self superview] frame].size; maxSize.width -= itemRect.origin.x + 5; maxSize.height -= itemRect.origin.y + 5; }
(void)awakeFromNib { itemRect.origin = [[NSMakePoint(5, 5);
[self calculateMaxSize];

[self setString: @”Hello World”]; }

-(void)drawRect:(NSRect)r { [[NSColor whiteColor] set]; NSRectFill(r);

if (mEditor == nil) {
    [[NSColor textBackgroundColor] set];
    NSRectFill(itemRect);
    
    [[NSColor textColor] set];
    NSMutableParagraphStyle *style = [[[NSMutableParagraphStyle alloc] init] autorelease];
    [style setLineBreakMode:NSLineBreakByTruncatingMiddle];
    NSMutableAttributedString *truncatedMiddle = [[NSMutableAttributedString alloc] initWithString:itemTitle];
    [truncatedMiddle addAttribute:NSParagraphStyleAttributeName 
							value:style 
							range:NSMakeRange(0, [itemTitle length])];
							
	if ([itemTitle isEqualToString:NSLocalizedString(@"no value", nil)]) {
		[truncatedMiddle addAttribute:NSForegroundColorAttributeName
								value:[NSColor grayColor]
								range:NSMakeRange(0, [itemTitle length])];
	}
    
    [truncatedMiddle drawInRect:itemRect];
	
} else {
    NSResponder *resp = self window] firstResponder];
    if ([[self window] isKeyWindow] &&
        [resp isKindOfClass:[[[NSView class]] &&
        [(NSView *)resp isDescendantOf:self]) {
       
		[NSGraphicsContext saveGraphicsState];
       
		
			[self setFocusRingType:NSFocusRingTypeNone];
			
			NSRect outerRect = [mEditor frame];
			outerRect.size.width += 2;
			outerRect.size.height += 4;
			outerRect.origin.x -= 1;
			outerRect.origin.y -= 2;
			
			// Shadow for line
			NSShadow *shadow = [[NSShadow alloc] init];
			[shadow setShadowOffset:NSMakeSize(0, -2)];
			[shadow setShadowBlurRadius:4.0];
			[shadow setShadowColor:[NSColor colorWithDeviceWhite:0.5 alpha:0.3]];
			[shadow set];
			
			[[NSColor colorWithCalibratedRed:0.2226 green:0.46875 blue:0.83593 alpha:1.0] set];
			NSFrameRect(outerRect);

			// A sort of nil-shadow to avoid restoring the graphics state already
			[shadow setShadowOffset:NSZeroSize];
			[shadow setShadowBlurRadius:0];
			[shadow setShadowColor:[NSColor clearColor]];
			[shadow set];
			
			// Shrink outerRect to avoid drawing over line
			outerRect.size.width -= 2;
			outerRect.size.height -= 2;
			outerRect.origin.x += 1;
			outerRect.origin.y += 1;
			[[NSColor whiteColor] set];
			NSRectFill(outerRect);	
			
			[shadow release];
			shadow = nil;
        [NSGraphicsContext restoreGraphicsState];
    }
} }

(void)fixEditor { [mEditor setFrameSize:NSMakeSize(maxSize.width, 10000)]; [mEditor sizeToFit]; // Uncomment the following two lines to resize from centre //NSRect r = [mEditor frame]; //[mEditor setFrameOrigin:NSMakePoint(NSMidX(itemRect) - r.size.width / 2, r.origin.y)]; [self setNeedsDisplay:YES]; }
(void)startEditing:(id)sender { [self calculateMaxSize]; mEditor = (NSTextView *)self window] fieldEditor:YES forObject:self]; [mEditor setDelegate:self]; [mEditor setHorizontallyResizable:YES]; [mEditor setVerticallyResizable:YES]; [mEditor setFrameSize:[[NSMakeSize(maxSize.width, 10000)]; mEditor textContainer] setContainerSize:[[NSMakeSize(maxSize.width, 10000)]; mEditor textContainer] setHeightTracksTextView:NO]; [[mEditor textContainer] setWidthTracksTextView:NO]; [mEditor setString:itemTitle]; [mEditor selectAll:self]; [mEditor setFrameOrigin:itemRect.origin]; [self addSubview:mEditor]; [[self window] makeFirstResponder:mEditor]; [self fixEditor]; }
(void)textDidChange:([[NSNotification *)notification; { [self fixEditor]; }
(void)textDidEndEditing:(NSNotification *)aNotification { // you have to copy the string because it’s mutable and gets reused! if ([aNotification object] string] isEqualToString:@””]) { [self setString:[[[NSString stringWithString:@”no value”]]; } else { [self setString:[NSString stringWithString:aNotification object] string]; } self window] makeFirstResponder:nil]; [mEditor removeFromSuperview]; mEditor = nil; [self setNeedsDisplay:YES]; }
(void)mouseDown:([[NSEvent *)theEvent { NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil]; if (mEditor != nil) { self window] makeFirstResponder: nil]; } if ([[NSPointInRect(p, itemRect)) { if ([theEvent clickCount] > 1) { [self startEditing:self]; } else { NSSize offset = NSMakeSize(p.x - itemRect.origin.x, p.y - itemRect.origin.y); while (theEvent = self window] nextEventMatchingMask: [[NSLeftMouseDraggedMask|NSLeftMouseUpMask]) { if ([theEvent type] == NSLeftMouseDragged) { NSPoint p = [self convertPoint: [theEvent locationInWindow] fromView: nil]; [self setNeedsDisplayInRect: itemRect]; itemRect.origin.x = p.x - offset.width; itemRect.origin.y = p.y - offset.height; [self setNeedsDisplayInRect: itemRect]; [self setNeedsDisplayInRect: NSMakeRect(0,0,100,20)];
```
          }
          else break;
      }
  }   } }
```

@end

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