umlshape.java

来自「mywork是rcp开发的很好的例子」· Java 代码 · 共 50 行

package net.sf.freenote.uml.model;

import net.sf.freenote.FreeNoteConstants;
import net.sf.freenote.directedit.DirectEditable;
import net.sf.freenote.model.Shape;

import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;

/**
 * uml派生的shape由UmlShapeEditPart来控制
 * 有一个通用的directedit属性
 * @author levin
 * @since 2008-1-29 下午02:34:49
 */
public abstract class UmlShape extends Shape implements DirectEditable{
	private String desc;

	public String getDesc() {
		return desc==null?desc="":desc;
	}
	public void setDesc(String name) {
		this.desc = name;
		firePropertyChange(FreeNoteConstants.DESC_PROPERTY, null, name);
	}
	
	@Override
	public IPropertyDescriptor[] getPropertyDescriptors() {
		IPropertyDescriptor[] propertyDescriptors = super.getPropertyDescriptors();
		IPropertyDescriptor[] ret=new IPropertyDescriptor[propertyDescriptors.length+1];
		System.arraycopy(propertyDescriptors, 0, ret, 1, propertyDescriptors.length);
		ret[0]=new TextPropertyDescriptor(FreeNoteConstants.DESC_PROPERTY, FreeNoteConstants.DESC_PROPERTY);
		return ret;
	}
	
	@Override
	public Object getPropertyValue(Object propertyId) {
		if(propertyId.equals(FreeNoteConstants.DESC_PROPERTY))
			return getDesc();
		return super.getPropertyValue(propertyId);
	}

	@Override
	public void setPropertyValue(Object propertyId, Object value) {
		if(propertyId.equals(FreeNoteConstants.DESC_PROPERTY))
			setDesc(String.valueOf(value));
		super.setPropertyValue(propertyId, value);
	}
}