gistfile1.j

// In my appcontroller

  var c = [[MainViewController alloc] init];

  [[c view] setFrame:CGRectMake(0, 0, [contentView frame].size.width, [contentView frame].size.height)];
  [contentView addSubview:[c view]];

// In my mainviewcontroller


@import <AppKit/CPViewController.j>
@import <AppKit/CPSplitView.j>

@import "TableViewController.j"
@import "DetailsViewController.j"
@import "MapViewController.j"


@implementation MainViewController: CPViewController
{
  CPSplitView verticalSplitView;
  CPSplitView horizontalSplitView;

  TableViewController tableViewController;
  DetailsViewController detailsViewController;
  MapViewController mapViewController;
}

- (void)loadView
{
  verticalSplitView = [[CPSplitView alloc] initWithFrame:CGRectMakeZero()];
  [verticalSplitView setAutoresizingMask:CPViewHeightSizable | CPViewWidthSizable];
  [verticalSplitView setIsPaneSplitter:YES];

  horizontalSplitView = [[CPSplitView alloc] initWithFrame:CGRectMakeZero()];
  [horizontalSplitView setAutoresizingMask:CPViewHeightSizable | CPViewWidthSizable];
  [horizontalSplitView setVertical:NO];

  [verticalSplitView addSubview:horizontalSplitView];

  tableViewController = [[TableViewController alloc] init];
  [horizontalSplitView addSubview:[tableViewController view]];

  mapViewController = [[MapViewController alloc] init];
  [horizontalSplitView addSubview:[mapViewController view]];

  detailsViewController = [[DetailsViewController alloc] init];
  [verticalSplitView addSubview:[detailsViewController view]];



  [self setView:verticalSplitView];
}
@end