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Annotation of Examples/AppKit/Draw/graphicsUndo.subproj/PasteGraphicsChange.m, revision 1.1.1.1

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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