View-based NSOutlineView without NIB?

Question

NSOutlineView is a subclass of NSTableView. And currently, NSTableView supports two implementations.

• Cell-based.

Answer 1

If you follow the example in SidebarDemo, they use a subclass of NSTableCellView for the detail rows. In order to emulate the InterfaceBuilder mojo, you can hook everything together in the constructor. The rest is the same as the demo (see outlineView:viewForTableColumn:item:).

@interface SCTableCellView : NSTableCellView
@end

@implementation SCTableCellView

- (id)initWithFrame:(NSRect)frameRect {
  self = [super initWithFrame:frameRect];
  [self setAutoresizingMask:NSViewWidthSizable];
  NSImageView* iv = [[NSImageView alloc] initWithFrame:NSMakeRect(0, 6, 16, 16)];
  NSTextField* tf = [[NSTextField alloc] initWithFrame:NSMakeRect(21, 6, 200, 14)];
  NSButton* btn = [[NSButton alloc] initWithFrame:NSMakeRect(0, 3, 16, 16)];
  [iv setImageScaling:NSImageScaleProportionallyUpOrDown];
  [iv setImageAlignment:NSImageAlignCenter];
  [tf setBordered:NO];
  [tf setDrawsBackground:NO];
  [[btn cell] setControlSize:NSSmallControlSize];
  [[btn cell] setBezelStyle:NSInlineBezelStyle];
  [[btn cell] setButtonType:NSMomentaryPushInButton];
  [[btn cell] setFont:[NSFont boldSystemFontOfSize:10]];
  [[btn cell] setAlignment:NSCenterTextAlignment];
  [self setImageView:iv];
  [self setTextField:tf];
  [self addSubview:iv];
  [self addSubview:tf];
  [self addSubview:btn];
  return self;
}

- (NSButton*)button {
  return [[self subviews] objectAtIndex:2];
}

- (void)viewWillDraw {
  [super viewWillDraw];
  NSButton* btn = [self button];
  ...