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Annotation of Examples/AppKit/Draw/graphicsUndo.subproj/ReorderGraphicsChange.m, revision 1.1

1.1     ! root        1: #import "drawundo.h"
        !             2: 
        !             3: @interface ReorderGraphicsChange(PrivateMethods)
        !             4: 
        !             5: - undoDetails;
        !             6: 
        !             7: @end
        !             8: 
        !             9: @implementation ReorderGraphicsChange
        !            10: 
        !            11: - saveBeforeChange
        !            12: {
        !            13:     [super saveBeforeChange];
        !            14:     [changeDetails makeObjectsPerform:@selector(recordGraphicPositionIn:) with:[graphicView graphics]];
        !            15: 
        !            16:     return self;
        !            17: }
        !            18: 
        !            19: - changeDetailClass
        !            20: {
        !            21:     return [OrderChangeDetail class];
        !            22: }
        !            23: 
        !            24: - undoDetails
        !            25: {
        !            26:     int count, i;
        !            27:     id detail, graphic;
        !            28:     List *allGraphics;
        !            29: 
        !            30:     count = [changeDetails count];
        !            31:     allGraphics = [graphicView graphics];
        !            32:     for (i = 0; i < count; i++) {
        !            33:        detail = [changeDetails objectAt:i];
        !            34:        graphic = [detail graphic];
        !            35:         [allGraphics removeObject:graphic];
        !            36:     }
        !            37:     for (i = 0; i < count; i++) {
        !            38:        detail = [changeDetails objectAt:i];
        !            39:        graphic = [detail graphic];
        !            40:         [allGraphics insertObject:graphic at:[detail graphicPosition]];
        !            41:     }
        !            42:        
        !            43:     return self;
        !            44: }
        !            45: 
        !            46: @end

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