/*

     File: FilterView.h

 Abstract: 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: 2.1

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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