?? customedgeview.java
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package com.opensymphony.workflow.designer.views;import java.awt.event.MouseEvent;import com.opensymphony.workflow.designer.*;import com.opensymphony.workflow.loader.ResultDescriptor;import org.jgraph.graph.*;/** * @author Hani Suleiman * Date: Dec 2, 2003 Time: 2:22:44 PM */public class CustomEdgeView extends EdgeView{ public CustomEdgeView(Object obj) { super(obj); GraphConstants.setOpaque(this.attributes, true); } /** * Returns a cell handle for the view. */ public CellHandle getHandle(GraphContext context) { return new CustomEdgeHandle(this, context); } public void setTarget(CellView targetView) { super.setTarget(targetView); if(targetView == null || targetView.getParentView() == null) return; if(targetView == source) { ((ResultEdge)cell).setAutoroute(); } WorkflowCell cell = (WorkflowCell)targetView.getParentView().getCell(); ResultDescriptor d = ((ResultEdge)getCell()).getDescriptor(); if(cell instanceof StepCell) { d.setStep(cell.getId()); } else if(cell instanceof JoinCell) { d.setJoin(cell.getId()); } else if(cell instanceof SplitCell) { d.setSplit(cell.getId()); } } public class CustomEdgeHandle extends EdgeHandle { CustomEdgeHandle(EdgeView edge, GraphContext ctx) { super(edge, ctx); } /** * Returning true signifies a mouse event adds a new point to an edge. */ public boolean isAddPointEvent(MouseEvent event) { return event.isShiftDown(); } /** * Returning true signifies a mouse event removes a given point. */ public boolean isRemovePointEvent(MouseEvent event) { return event.isShiftDown(); } }}?? 快捷鍵說(shuō)明
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