BezierView.h

/*
     File: BezierView.h
 Abstract: BezierView implements a view with a single bezier path.  The path is created 
 using various constructs to demonstrate some different methods of creating bezier
 paths.  The color of the background and path element can be customized. In addition, 
 the line and cap style can be selected.  An example of the -setLineDash:count:phase: 
 method is included.   
 
 The application also includes a zoom feature that can be used to better view the 
 different line and fill styles.
  Version: 1.2
 
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 */


#import <Cocoa/Cocoa.h>

enum  {	// Types of Bezier Paths.
    SquarePath,
    CirclePath,
    ArcPath,
    LinePath
};
typedef NSInteger BezierPathType;

enum { // Types of Cap Styles.
    ButtLine,
    SquareLine,
    RoundLine
};
typedef NSInteger CapStyleType;

@interface BezierView : NSView
{
    NSColor *lineColor, *fillColor, *backgroundColor;
    NSBezierPath *path;
    CGFloat lineWidth, angle, dashCount;
    BezierPathType pathType;
    CapStyleType capStyle;
    BOOL filled;
    CGFloat dashArray[3];
    
    // Outlets
    id lineColorWell;
    id fillColorWell;
    id backgroundColorWell;
    id lineWidthSlider;
    id pathTypeMatrix;
    id filledBox;
    id angleSlider;
    id capStyleMatrix;
    id zoomSlider;
    id lineTypeMatrix;
}

// Outlet-setting methods (we need these to set the initial values for the controls)

- (void) setLineColor:(NSColor *)newColor;
- (void) setFillColor:(NSColor *)newColor;
- (void) setBackgroundColor:(NSColor *)newColor;
- (void) setPath:(NSBezierPath *)newPath;
- (void) setLineWidth:(CGFloat) newWidth;
- (void) setAngle:(CGFloat) newAngle;
- (void) setZoom:(CGFloat) scaleFactor;

// Methods to change the path attributes.

- (void) setPathType:(id)sender;
- (void) setFilled:(id)sender;
- (void) setCapStyle:(id)sender;
- (void) changeLineWidth:(id)sender;
- (void) changeAngleSlider:(id)sender;
- (void) changeLineType:(id)sender;
- (void) changeZoomSlider:(id)sender;
- (void) changeLineColor:(id)sender;
- (void) changeFillColor:(id)sender;
- (void) changeBackgroundColor:(id)sender;

@end