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

1.1     ! root        1: #import "drawundo.h"
        !             2: 
        !             3: @interface PasteGraphicsChange(PrivateMethods)
        !             4: 
        !             5: - undoDetails;
        !             6: - redoDetails;
        !             7: 
        !             8: @end
        !             9: 
        !            10: @implementation PasteGraphicsChange
        !            11: 
        !            12: - initGraphicView:aGraphicView graphics:theGraphics
        !            13: {
        !            14:     int i, count;
        !            15:     
        !            16:     [super initGraphicView:aGraphicView];
        !            17:     graphics = [[List alloc] init];
        !            18:     count = [theGraphics count];
        !            19:     for (i = 0; i < count; i++) {
        !            20:        [graphics addObject:[theGraphics objectAt:i]];
        !            21:     }
        !            22: 
        !            23:     return self;
        !            24: }
        !            25: 
        !            26: - free
        !            27: {
        !            28:     if (![self hasBeenDone])
        !            29:         [graphics freeObjects];
        !            30:     return [super free];
        !            31: }
        !            32: 
        !            33: - (const char *)changeName
        !            34: {
        !            35:     return PASTE_OPERATION;
        !            36: }
        !            37: 
        !            38: - saveBeforeChange
        !            39: {
        !            40:     return self;
        !            41: }
        !            42: 
        !            43: - changeDetailClass
        !            44: {
        !            45:     return nil;
        !            46: }
        !            47: 
        !            48: - undoDetails
        !            49: {
        !            50:     int count, i;
        !            51:     id graphic;
        !            52:     List *selectedGraphics;
        !            53:     List *allGraphics;
        !            54: 
        !            55:     selectedGraphics = [graphicView selectedGraphics];
        !            56:     allGraphics = [graphicView graphics];
        !            57:     count = [graphics count];
        !            58:     for (i = 0; i < count; i++) {
        !            59:        graphic = [graphics objectAt:i];
        !            60:         [selectedGraphics removeObject:graphic];
        !            61:         [allGraphics removeObject:graphic];
        !            62:        [graphic wasRemovedFrom:graphicView];
        !            63:     }
        !            64:     [graphicView resetGroupInSlist];
        !            65:     return self;
        !            66: }
        !            67: 
        !            68: - redoDetails
        !            69: {
        !            70:     int count, i;
        !            71:     id graphic;
        !            72:     List *selectedGraphics;
        !            73:     List *allGraphics;
        !            74: 
        !            75:     selectedGraphics = [graphicView selectedGraphics];
        !            76:     allGraphics = [graphicView graphics];
        !            77:     count = [graphics count];
        !            78:     i = count;
        !            79:     while (i--) {
        !            80:        graphic = [graphics objectAt:i];
        !            81:        [selectedGraphics insertObject:graphic at:0];
        !            82:        [allGraphics insertObject:graphic at:0];
        !            83:        [graphic wasAddedTo:graphicView];
        !            84:         if ([graphic isKindOf:[Group class]]) [graphicView setGroupInSlist:YES];
        !            85:     }
        !            86: 
        !            87:     return self;
        !            88: }
        !            89: 
        !            90: @end

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