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Annotation of Examples/AppKit/Draw/SyncScrollView.h, revision 1.1.1.1

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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