//

//  Controller.m

//  TintedImage

//

//  Created by jcr on Thu Feb 21 2002.

//  Copyright (c) 2002  Apple Computer, Inc. All rights reserved.

#import "Controller.h"

#import "TintedImage.h"

@implementation Controller

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification

  {

  [NSColor setIgnoresAlpha:NO];  // This turns on the alpha slider in the color panel.

  }

- (void) awakeFromNib  // Make sure the UI is coherent after the nib is loaded.

  {

  [self takeColorFrom: colorWell];

  [self takeOperationFrom: opsMenu];

  }

- (IBAction)takeNewImageFrom:(id)sender  // This message will get sent when an image is dropped on either NSImageView

  {

  // A bit of explanation here:  when an image is dropped on either of the image wells, I want the original to appear on the left, and the tinted version to appear on the right.  I'm only testing for the case where the sender is the right-side image view.  If the sender is the left-side image view, then it will already have the correct image showing.

  if (sender == tintedImageView)  

    [inputImageView setImage:[sender image]];

  [self updateViews];

  }

- (IBAction)takeOperationFrom:(id)sender  //Action for the pop-up list that selects the compositing mode.

  {

  // in the Interface Builder, you can set the tag values of cells, such as those in the pop up list.  I've set them up to correspond to the values defined  in the NSCompositingOperation enumerated type.

  op = [[sender selectedItem] tag];

  [self updateViews];

  }  

- (IBAction)takeColorFrom:(id)sender

  {

  [self setColor:[sender color]];

  [self updateViews];

  }

- (void) setColor:(NSColor *) aColor  // This is your basic paranoid accessor method...

  {

  if (aColor)

    {

    [aColor retain];

    if (color) 

      [color release];

    color = aColor;

    }

  }

- (void) updateViews // Method to keep the UI in sync with any user actions like changing the color, dropping an image, etc.

  {

  [tintedImageView setImage:[[inputImageView image] tintedImageWithColor:color operation:op]];

  [[tintedImageView cell] setHighlighted:NO];  // Whithout this call, the image wells will have a light grey background

  [[inputImageView cell] setHighlighted:NO];

  }

- (IBAction)saveTintedImage:(id)sender

  {

  [[NSSavePanel savePanel]

    beginSheetForDirectory:NSHomeDirectory()  // seems like a reasonable place to start..

    file:@"Tinted Image"    // default filename

    modalForWindow:window   //Run as a sheet, attached to "window"

    modalDelegate:self  // The save panel should call me when it's done..

    didEndSelector:@selector(savePanelDidEnd:returnCode:contextInfo:) // ... using this selector

    contextInfo:NULL];

  }

- (void)savePanelDidEnd:(NSSavePanel *)sheet returnCode:(int)returnCode contextInfo:(void  *)contextInfo

  {

  if (returnCode == NSOKButton)  // The user hit "save", so...

    [[[tintedImageView image] TIFFRepresentation]  // Create the contents of a .tiff file

      writeToFile:[NSString stringWithFormat:@"%@.%@", [sheet filename], @"tiff"] // save it at the path we get from the panel.

      atomically:YES];  // That's about all there is to it..

  }

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication { return YES; }

@end

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