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Annotation of Examples/AppKit/UnderPressure/Brush.h, revision 1.1.1.1

1.1       root        1: #if 0
                      2: 
                      3:   Brush.h -- Pressure sensitive paint brush
                      4: 
                      5:   by Peter Graffagnino, NeXT Computer Inc.
                      6: 
                      7:   You may freely copy, distribute, and reuse the code in this example.
                      8:   NeXT disclaims any warranty of any kind, expressed or  implied, as to its
                      9:   fitness for any particular use.
                     10: 
                     11: #endif
                     12: 
                     13: 
                     14: #import <objc/Object.h>
                     15: 
                     16: /* 
                     17:  *  A pressure sensitive brush whose size is governed by:
                     18:  *     minSize + pressureCoefficient*(inputPressure^pressureExponent)
                     19:  */
                     20: 
                     21: @interface Brush : Object
                     22: {
                     23:     NXColor brushColor;                
                     24:     float pressureExponent;    
                     25:     float minSize;
                     26:     float pressureCoefficient;
                     27:     double lastx, lasty, lastsize;     /* last point drawn (for connecting
                     28:                                         * strokes)
                     29:                                         */
                     30: }    
                     31: 
                     32: /* drawing the brush */
                     33: - brushMoveTo:(float)x :(float)y withPressure:(float) pressure
                     34:  dirtyRect: (NXRect *) dirty;
                     35: - brushLineTo:(float)x :(float)y withPressure:(float) pressure
                     36:  dirtyRect: (NXRect *) dirty;
                     37: 
                     38: /* target/action & outlet-setting methods */
                     39: - setMinSize: sender;
                     40: - setPressureExponent: sender;
                     41: - setBrushColor: sender;
                     42: - setPressureCoefficient: sender;
                     43: 
                     44: @end

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