MyWindowController.m

/*

     File: MyWindowController.m 

 Abstract: main NSWindowController 

  Version: 1.1 

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 */

#import "MyWindowController.h"

#import "CustomImageViewController.h"

#import "CustomTableViewController.h"

#import "CustomVideoViewController.h"

@implementation MyWindowController

enum    // popup tag choices

{

    kImageView = 0,

    kTableView,

    kVideoView,

    kCameraView

};

NSString *const kViewTitle      = @"CustomImageView";

NSString *const kTableTitle     = @"CustomTableView";

NSString *const kVideoTitle     = @"CustomVideoView";

NSString *const kCameraTitle    = @"CustomCameraView";

// -------------------------------------------------------------------------------

//  initWithPath:newPath

// -------------------------------------------------------------------------------

- initWithPath:(NSString *)newPath

{

   return [super initWithWindowNibName:@"TestWindow"];

}

// -------------------------------------------------------------------------------

//  changeViewController:whichViewTag

//

//  Change the current NSViewController to a new one based on a tag obtained from

//  the NSPopupButton control.

// -------------------------------------------------------------------------------

- (void)changeViewController:(NSInteger)whichViewTag

{

    // we are about to change the current view controller,

    // this prepares our title's value binding to change with it

    [self willChangeValueForKey:@"viewController"];

    if ([myCurrentViewController view] != nil)

        [[myCurrentViewController view] removeFromSuperview];   // remove the current view

    if (myCurrentViewController != nil)

        [myCurrentViewController release];      // remove the current view controller

    switch (whichViewTag)

    {

        case 0: // swap in the "CustomImageViewController - NSImageView"

        {

            CustomImageViewController* imageViewController =

                [[CustomImageViewController alloc] initWithNibName:kViewTitle bundle:nil];

            if (imageViewController != nil)

            {

                myCurrentViewController = imageViewController;  // keep track of the current view controller

                [myCurrentViewController setTitle:kViewTitle];

            }

            break;

        }

        case 1: // swap in the "CustomTableViewController - NSTableView"

        {

            CustomTableViewController* tableViewController =

                [[CustomTableViewController alloc] initWithNibName:kTableTitle bundle:nil];

            if (tableViewController != nil)

            {

                myCurrentViewController = tableViewController;  // keep track of the current view controller

                [myCurrentViewController setTitle:kTableTitle];

            }

            break;

        }

        case 2: // swap in the "CustomVideoViewController - QTMovieView"

        {

            CustomVideoViewController* videoViewController =

                [[CustomVideoViewController alloc] initWithNibName:kVideoTitle bundle:nil];

            if (videoViewController != nil)

            {

                myCurrentViewController = videoViewController;  // keep track of the current view controller

                [myCurrentViewController setTitle:kVideoTitle];

            }

            break;

        }

        case 3: // swap in the "NSViewController - Quartz Composer iSight Camera"

        {

            NSViewController* cameraViewController =

                [[NSViewController alloc] initWithNibName:kCameraTitle bundle:nil];

            if (cameraViewController != nil)

            {

                myCurrentViewController = cameraViewController; // keep track of the current view controller

                [myCurrentViewController setTitle:kCameraTitle];

            }

            break;

        }

    }

    // embed the current view to our host view

    [myTargetView addSubview: [myCurrentViewController view]];

    // make sure we automatically resize the controller's view to the current window size

    [[myCurrentViewController view] setFrame: [myTargetView bounds]];

    // set the view controller's represented object to the number of subviews in that controller

    // (our NSTextField's value binding will reflect this value)

    [myCurrentViewController setRepresentedObject: [NSNumber numberWithUnsignedInt: [[[myCurrentViewController view] subviews] count]]];

    [self didChangeValueForKey:@"viewController"];  // this will trigger the NSTextField's value binding to change

}

// -------------------------------------------------------------------------------

//  awakeFromNib:

// -------------------------------------------------------------------------------

- (void)awakeFromNib

{

    [self changeViewController: kImageView];

}

// -------------------------------------------------------------------------------

//  viewChoicePopupAction

// -------------------------------------------------------------------------------

- (IBAction)viewChoicePopupAction:(id)sender

{

    [self changeViewController: [[sender selectedCell] tag]];

}

// -------------------------------------------------------------------------------

//  viewController

// -------------------------------------------------------------------------------

- (NSViewController*)viewController

{

    return myCurrentViewController;

}

@end