/* FilterView.h 
			the filter view is really the box that contains 
			all the UI widgets to edit a layer
			each of the widgets (slider with label and 
			readout, color well with label, check box, image 
			view with choose button, etc)
			gets encoded in its own parameter view
 
 Version: 1.1
 
 © Copyright 2004-2009 Apple, Inc. All rights reserved.
 
 IMPORTANT:  This Apple software is supplied to 
 you by Apple Computer, Inc. ("Apple") in 
 consideration of your agreement to the following 
 terms, and your use, installation, modification 
 or redistribution of this Apple software 
 constitutes acceptance of these terms.  If you do 
 not agree with these terms, please do not use, 
 install, modify or redistribute this Apple 
 software.
 
 In consideration of your agreement to abide by 
 the following terms, and subject to these terms, 
 Apple grants you a personal, non-exclusive 
 license, under Apple's copyrights in this 
 original Apple software (the "Apple Software"), 
 to use, reproduce, modify and redistribute the 
 Apple Software, with or without modifications, in 
 source and/or binary forms; provided that if you 
 redistribute the Apple Software in its entirety 
 and without modifications, you must retain this 
 notice and the following text and disclaimers in 
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 Neither the name, trademarks, service marks or 
 logos of Apple Computer, Inc. may be used to 
 endorse or promote products derived from the 
 Apple Software without specific prior written 
 permission from Apple.  Except as expressly 
 stated in this notice, no other rights or 
 licenses, express or implied, are granted by 
 Apple herein, including but not limited to any 
 patent rights that may be infringed by your 
 derivative works or by other works in which the 
 Apple Software may be incorporated.
 
 The Apple Software is provided by Apple on an "AS 
 IS" basis.  APPLE MAKES NO WARRANTIES, EXPRESS OR 
 IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED 
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 THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE 
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 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY 
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 */

#import <AppKit/AppKit.h>
#import <QuartzCore/QuartzCore.h>
#import "EffectStackController.h"

@class CoreImageView;

// type of widget last added
typedef enum
{
    ctNone = 0,
    ctSlider,
    ctColorWell,
    ctCheckBox,
    ctImageWell,
    ctTransform,
    ctVector,
    ctTextView,
    ctOffset,
} ControlType;

@interface FilterView : EffectStackBox
{
    NSInteger tag;                                // tag: it's the layer index!
    NSInteger controlLeftPosition;                // state used for packing widgets
    NSInteger controlTopPosition;                 // state used for packing widgets
    NSInteger colorWellOffset;                    // state used for packing widgets
    ControlType lastControlType;            // last control type added (for packing widgets properly)
    NSTextField *filterNameField;           // text field for showing filter name (image name, text)
    NSButton *plusbutton;                   // plus button: allows user to create a new layer after this one
    NSButton *minusbutton;                  // minus button: allows user to delete this layer
    NSButton *checkBox;                     // check box: for enabling/disabling the layer
}

// for computing size of box beforehand
- (void)tryFilterHeader:(CIFilter *)filter;
- (void)trySliderForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryCheckBoxForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryColorWellForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryImageWellForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryTransformForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryVectorForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)tryOffsetForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;

// for populating the box with controls
- (void)addFilterHeader:(CIFilter *)filter tag:(NSInteger)index enabled:(BOOL)enabled;
- (void)addSliderForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addCheckBoxForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addColorWellForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addImageWellForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addTransformForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addVectorForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;
- (void)addOffsetForFilter:(CIFilter *)f key:(NSString *)k displayView:(CoreImageView *)v;

// image layers
- (void)tryImageHeader:(CIImage *)im;
- (void)addImageHeader:(CIImage *)im filename:(NSString *)filename tag:(NSInteger)index enabled:(BOOL)enabled;
- (void)tryImageWellForImage:(CIImage *)im tag:(NSInteger)tag displayView:(CoreImageView *)v;
- (void)addImageWellForImage:(CIImage *)im tag:(NSInteger)tag displayView:(CoreImageView *)v;

// text layers
- (void)tryTextHeader:(NSString *)string;
- (void)addTextHeader:(NSString *)string tag:(NSInteger)index enabled:(BOOL)enabled;
- (void)tryTextViewForString;
- (void)addTextViewForString:(NSMutableDictionary *)d key:(NSString *)key displayView:(CoreImageView *)v;
- (void)trySliderForText;
- (void)addSliderForText:(NSMutableDictionary *)d key:(NSString *)key lo:(CGFloat)lo hi:(CGFloat)hi displayView:(CoreImageView *)v;

// trim box after adding UI
- (void)trimBox;
- (void)setTag:(NSInteger)index;

@end


