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Annotation of Examples/AppKit/Draw/textUndo.subproj/CutSelection.m, revision 1.1

1.1     ! root        1: #import "textundo.h"
        !             2: 
        !             3: @implementation CutSelection
        !             4: 
        !             5: /*
        !             6:  * The CutSelection class works like a normal TextSelection except that
        !             7:  * we maintain seperate variables for the visible start and end of the
        !             8:  * selection. This is handy when you want to save a block of characters,
        !             9:  * but when you install: the selection, you want the insertion point at
        !            10:  * the end. Use this class when the characters to be saved don't correspond
        !            11:  * directly to the characters to be shown in the selection.
        !            12:  */
        !            13: 
        !            14: - initText:aView start:(int)aPos end:(int)anotherPos
        !            15: {
        !            16:     [super initText:aView start:aPos end:anotherPos];
        !            17:     visibleStart = start;
        !            18:     visibleEnd = end;
        !            19: 
        !            20:     return self;
        !            21: }
        !            22: 
        !            23: - install
        !            24: {
        !            25:     [super install];
        !            26:     [text setSel:visibleStart :visibleEnd];
        !            27: 
        !            28:     return self;
        !            29: }
        !            30: 
        !            31: - (int)visibleLength
        !            32: {
        !            33:     return (visibleEnd - visibleStart);
        !            34: }
        !            35: 
        !            36: - setVisible:(int)vStart :(int)vEnd
        !            37: {
        !            38:     visibleStart = vStart;
        !            39:     visibleEnd = vEnd;
        !            40: 
        !            41:     return self;
        !            42: }
        !            43: 
        !            44: @end

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