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Annotation of Examples/AppKit/Draw/SyncScrollView.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Any View that responds to these messages can be a "ruler".
        !             3:  * This is a nice way to make an object which works in concert
        !             4:  * with another object, but isn't hardwired into the implementation
        !             5:  * of that object and, instead, publishes a minimal interface
        !             6:  * which it expects another object to respond to.
        !             7:  */
        !             8: 
        !             9: @protocol Ruler
        !            10: - setFlipped:(BOOL)flag;               /* if YES, coordinates go right->left or top->bottom */
        !            11: - hidePosition;                                /* hide any positioning markers */
        !            12: - showPosition:(NXCoord)p :(NXCoord)q; /* put the positioning markers at p and q */
        !            13: @end
        !            14: 
        !            15: typedef enum {
        !            16:     LowerLeft = 0, LowerRight, UpperLeft, UpperRight
        !            17: } RulerOrigin;
        !            18: 
        !            19: @interface SyncScrollView : ScrollView
        !            20: {
        !            21:     ClipView *hClipRuler;
        !            22:     ClipView *vClipRuler;
        !            23:     id rulerClass;
        !            24:     NXCoord horizontalRulerWidth;
        !            25:     NXCoord verticalRulerWidth;
        !            26:     RulerOrigin rulerOrigin;
        !            27:     BOOL verticalRulerIsVisible;
        !            28:     BOOL horizontalRulerIsVisible;
        !            29:     BOOL rulersMade;
        !            30: }
        !            31: 
        !            32: /* Setting up the rulers */
        !            33: 
        !            34: - (BOOL)bothRulersAreVisible;
        !            35: - (BOOL)eitherRulerIsVisible;
        !            36: - (BOOL)verticalRulerIsVisible;
        !            37: - (BOOL)horizontalRulerIsVisible;
        !            38: 
        !            39: - setRulerClass:factoryId;
        !            40: - setRulerWidths:(NXCoord)horizontal :(NXCoord)vertical;
        !            41: - setRulerOrigin:(RulerOrigin)origin;
        !            42: 
        !            43: - showHorizontalRuler:(BOOL)flag;
        !            44: - showVerticalRuler:(BOOL)flag;
        !            45: 
        !            46: - updateRuler;
        !            47: 
        !            48: /* Comes up the responder chain to us */
        !            49: 
        !            50: - updateRulers:(const NXRect *)rect;
        !            51: - showHideRulers:sender;
        !            52: 
        !            53: /* Overridden from superclass */
        !            54: 
        !            55: - reflectScroll:cView;
        !            56: - tile;
        !            57: - scrollClip:(ClipView *)aClipView to:(const NXPoint *)aPoint;
        !            58: - descendantFrameChanged:sender;
        !            59: 
        !            60: @end

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