#import "MyDocument.h"

#import "BasicVTKView.h"

#import "vtkInteractorStyleSwitch.h"
#import "vtkCocoaRenderWindowInteractor.h"
#import "vtkConeSource.h"
#import "vtkCylinderSource.h"
#import "vtkPolyDataMapper.h"
#import "vtkSmartPointer.h"
#import "vtkDebugLeaks.h"

@implementation MyDocument

- (void)setupLeftVTKView
{
        [leftVTKView initializeVTKSupport];

        // 'smart pointers' are used because they are very similiar to creating auto-realeased objects in Cocoa.

        // Personal Taste Section. I like to use a trackball interactor
        vtkSmartPointer<vtkInteractorStyleSwitch> intStyle = vtkSmartPointer<vtkInteractorStyleSwitch>::New();
        intStyle->SetCurrentStyleToTrackballCamera();
        [leftVTKView getInteractor]->SetInteractorStyle(intStyle);

        // Create a cone, see the "VTK User's Guide" for details
        vtkSmartPointer<vtkConeSource> cone = vtkSmartPointer<vtkConeSource>::New();
        cone->SetHeight(3.0);
        cone->SetRadius(1.0);
        cone->SetResolution(100);
        vtkSmartPointer<vtkPolyDataMapper> coneMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
        coneMapper->SetInput(cone->GetOutput());
        vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New();
        coneActor->SetMapper(coneMapper);
        [leftVTKView getRenderer]->AddActor(coneActor);
        
        // Tell the system that the view needs to be redrawn
        [leftVTKView setNeedsDisplay:YES];
}

- (void)setupRightVTKView
{
        [rightVTKView initializeVTKSupport];

        // 'smart pointers' are used because they are very similiar to creating auto-realeased objects in Cocoa.

        // Personal Taste Section. I like to use a trackball interactor
        vtkSmartPointer<vtkInteractorStyleSwitch> intStyle = vtkSmartPointer<vtkInteractorStyleSwitch>::New();
        intStyle->SetCurrentStyleToTrackballCamera();
        [rightVTKView getInteractor]->SetInteractorStyle(intStyle);

        // Create a cyclinder, see the "VTK User's Guide" for details
        vtkSmartPointer<vtkCylinderSource> cylinder = vtkSmartPointer<vtkCylinderSource>::New();
        cylinder->SetResolution(100);
        vtkSmartPointer<vtkPolyDataMapper> cylinderMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
        cylinderMapper->SetInput(cylinder->GetOutput());
        vtkSmartPointer<vtkActor> cylinderActor = vtkSmartPointer<vtkActor>::New();
        cylinderActor->SetMapper(cylinderMapper);
        [rightVTKView getRenderer]->AddActor(cylinderActor);

        // Tell the system that the view needs to be redrawn
        [rightVTKView setNeedsDisplay:YES];
}

#pragma mark -

- (id)init 
{
    self = [super init];
    if (self != nil) {
        // Add your subclass-specific initialization here.
        // If an error occurs here, send a [self release] message and return nil.
    }
    return self;
}

- (void)applicationWillTerminate:(NSNotification *)aNotification
{
        // Releases memory allocated in initializeVTKSupport.
        // In a way, calling these is pointless since the application is quitting anyway.
        [leftVTKView cleanUpVTKSupport];
        [rightVTKView cleanUpVTKSupport];
        
        // If you have built vtk with VTK_DEBUG_LEAKS on then this method will print out any leaks
        // that exist.  The sample has been careful to cleanup after itself, so there should be no leaks.
        vtkDebugLeaks::PrintCurrentLeaks();
}

- (NSString *)windowNibName 
{
    // Override returning the nib file name of the document
    // If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.
    return @"MyDocument";
}

- (void)windowControllerDidLoadNib:(NSWindowController *)windowController 
{
    [super windowControllerDidLoadNib:windowController];
        
    // vtk stuff
        [self setupLeftVTKView];
        [self setupRightVTKView];
        
        [NSApp setDelegate:self];
}


- (NSData *)dataRepresentationOfType:(NSString *)aType
{
    // Insert code here to write your document from the given data.  You can also choose to override -fileWrapperRepresentationOfType: or -writeToFile:ofType: instead.
    
    // For applications targeted for Tiger or later systems, you should use the new Tiger API -dataOfType:error:.  In this case you can also choose to override -writeToURL:ofType:error:, -fileWrapperOfType:error:, or -writeToURL:ofType:forSaveOperation:originalContentsURL:error: instead.

    return nil;
}

- (BOOL)loadDataRepresentation:(NSData *)data ofType:(NSString *)aType
{
    // Insert code here to read your document from the given data.  You can also choose to override -loadFileWrapperRepresentation:ofType: or -readFromFile:ofType: instead.

    // For applications targeted for Tiger or later systems, you should use the new Tiger API readFromData:ofType:error:.  In this case you can also choose to override -readFromURL:ofType:error: or -readFromFileWrapper:ofType:error: instead.
    
    return YES;
}

@end
