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#import "drawundo.h" @interface UnlockGraphicsChange(PrivateMethods) - undoDetails; @end @implementation UnlockGraphicsChange - (const char *)changeName { return NXLocalStringFromTable("Operations", "Unlock", NULL, "The operation of unlocking all the graphical entities which were previously locked down (see Lock)."); return "Unlock"; } - saveBeforeChange { List *allGraphics; int i, count; id graphic; graphics = [[List alloc] init]; allGraphics = [graphicView graphics]; count = [allGraphics count]; for (i = 0; i < count; i++) { graphic = [allGraphics objectAt:i]; if ([graphic isLocked]) [graphics addObject:graphic]; } if ([graphics count] == 0) [self disable]; return self; } - redoChange { [graphics makeObjectsPerform:@selector(unlocB [graphicView resetLockedFlag]; return [super redoChange]; } - changeDetailClass { return nil; } - undoDetails { int i, count; List *selectedGraphics; id graphic; selectedGraphics = [graphicView selectedGraphics]; count = [graphics count]; for (i = 0; i < count; i++) { graphic = [graphics objectAt:i]; [graphic lock]; [graphic deselect]; [selectedGraphics removeObject:graphic]; } [graphicView resetLockedFlag]; return self; } @end