/*

     File: AnnotationController.m

 Abstract: The AnnotationController is the controller object of the app.

  Version: 1.3

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 */

#import "AnnotationController.h"

#import "Utilities.h"

@implementation AnnotationController

- (void)awakeFromNib

{

    // load all globally installed Image Units

    [CIPlugIn loadAllPlugIns];

    // check if our required filters from Image Units are installed:

    NSArray     *filterList = [CIFilter filterNamesInCategories:nil];       //get all filters

    // check if one of our filters was not globally availble and load it from the applications PlugIns directory

    if(![filterList containsObject:@"LensFilter"])

    {

        NSString    *path = [[[NSBundle mainBundle] builtInPlugInsPath] stringByAppendingPathComponent:@"LensImageUnit.plugin"];

        NSURL       *pluginURL = [NSURL fileURLWithPath:path];

        [CIPlugIn loadPlugIn:pluginURL allowExecutableCode:YES];

    }

    if(![filterList containsObject:@"PaintFilter"])

    {

        NSString    *path = [[[NSBundle mainBundle] builtInPlugInsPath] stringByAppendingPathComponent:@"PaintImageUnit.plugin"];

        NSURL       *pluginURL = [NSURL fileURLWithPath:path];

        [CIPlugIn loadPlugIn:pluginURL allowExecutableCode:YES];

    }

    // cross check if we have our required filters

    filterList = [CIFilter filterNamesInCategories:nil];        //get all filters

    if((![filterList containsObject:@"PaintFilter"]) || (![filterList containsObject:@"LensFilter"]))

    {

        NSRunCriticalAlertPanel(@"Required filters are missing", @"The PaintFilter and Lens Image Unit are not installed", @"Quit", nil, nil);

        [NSApp terminate:self];

    }

    [self openImage:self];

}

- (IBAction)setBrightness:(id)sender

{

    [currentDocument setBrightness:[sender doubleValue]];

}

- (IBAction)setContrast:(id)sender

{

    [currentDocument setContrast:[sender doubleValue]];

}

- (IBAction)setSaturation:(id)sender

{

    [currentDocument setSaturation:[sender doubleValue]];

}

- (IBAction)setMode:(id)sender

{

    [currentDocument setMode:(AnnotationEditingMode)[[sender selectedCell] tag]];

}

- (IBAction)openImage:(id)sender

{

    NSOpenPanel         *openPanel = [NSOpenPanel openPanel];

    [openPanel setAllowsMultipleSelection:NO];

    [openPanel setCanChooseDirectories:NO];

    [openPanel setAllowedFileTypes:getImageFileTypes()];

    if ([openPanel runModal] == NSFileHandlingPanelOKButton)

    {

        NSPoint     paletteOrigin;

        [currentDocument release];

        currentDocument = [[AnnotationDocument alloc] initWithImageURL:[[openPanel URLs] objectAtIndex:0] renderView:renderView];

        [renderView setDocument:currentDocument];

        [[renderView window] zoom:self];                // zoom the main window

        paletteOrigin.x = MIN(NSMaxX([[renderView window] frame]), NSMaxX([[[renderView window] screen] frame]) - [toolPallette frame].size.width);     

        paletteOrigin.y = NSMaxY([[renderView window] frame]);

        [toolPallette setFrameTopLeftPoint:paletteOrigin];      // position the tool palette right next to it

        [[renderView window] makeKeyAndOrderFront:self];

        if(![[renderView window] makeFirstResponder:renderView])    // make sure our view is first responder for printing

            NSLog(@"could not set first responder");

        [currentDocument refresh];

    }

}

- (IBAction)saveAnnotatedImage:(id)sender

{    

    NSSavePanel *savePanel = [NSSavePanel savePanel];

    [savePanel setTitle:@"Save image"];

    [savePanel setNameFieldStringValue:@"AnnotatedImage.jpeg"];

    if([savePanel runModal] == NSFileHandlingPanelOKButton)

    {

        [currentDocument exportImageToURL:[savePanel URL]];

        [[NSWorkspace sharedWorkspace] openURL:[savePanel URL]];

    }

}

@end