26c26
< 	private String      fAttribute;
---
> 	private FigureAttributeConstant fAttribute;
32c32
< 	 * @param attributeName the name of the attribute to be changed
---
> 	 * @param attribute the attribute to be changed
36c36
< 	public ChangeAttributeCommand(String name, String attributeName,
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> 	public ChangeAttributeCommand(String name, FigureAttributeConstant attribute,
39c39
< 		fAttribute = attributeName;
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> 		fAttribute = attribute;
65a66
> 		private FigureAttributeConstant myUndoAttribute;
67d67
< 		private String      myUndoAttribute;
70c70
< 		public UndoActivity(DrawingView newDrawingView, String newUndoAttribute, Object newUndoValue) {
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> 		public UndoActivity(DrawingView newDrawingView, FigureAttributeConstant newUndoAttribute, Object newUndoValue) {
73c73
< 			setAttributeName(newUndoAttribute);
---
> 			setAttribute(newUndoAttribute);
88c88
< 					f.setAttribute(getAttributeName(), getOriginalValue(f));
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> 					f.setAttribute(getAttribute(), getOriginalValue(f));
104c104
< 					f.setAttribute(getAttributeName(), getBackupValue());
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> 					f.setAttribute(getAttribute(), getBackupValue());
119c119
< 		protected void setAttributeName(String newUndoAttribute) {
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> 		protected void setAttribute(FigureAttributeConstant newUndoAttribute) {
123c123
< 		public String getAttributeName() {
---
> 		public FigureAttributeConstant getAttribute() {
147c147
< 				Object attributeValue = f.getAttribute(getAttributeName());
---
> 				Object attributeValue = f.getAttribute(getAttribute());