jfgroup.java

用Java开发的、实现类似Visio功能的应用程序源码

/**
 *    $Id:JFGroup.java $
 *
 *    Copyright 2004 ~ 2005  JingFei International Cooperation LTD. All rights reserved. *
 */
package com.jfimagine.jfgraph.shape.union;



import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.Stroke;
import java.awt.BasicStroke;
import java.awt.geom.GeneralPath;

import com.jfimagine.jfdom.Document;
import com.jfimagine.jfdom.Element;


import com.jfimagine.jfgraph.geom.JFPoint;
import com.jfimagine.jfgraph.geom.Rect;
import com.jfimagine.jfgraph.geom.GeomConst;
import com.jfimagine.jfgraph.geom.LineSeg;

import com.jfimagine.jfgraph.shape.decorate.Arrow;
import com.jfimagine.jfgraph.shape.decorate.FontFormat;
import com.jfimagine.jfgraph.shape.decorate.LineFormat;
import com.jfimagine.jfgraph.shape.decorate.FillFormat;


import com.jfimagine.jfgraph.shape.base.AbstractObject;
import com.jfimagine.jfgraph.shape.base.AbstractShape;
import com.jfimagine.jfgraph.shape.base.ShapeConst; 
import com.jfimagine.jfgraph.shape.base.ObjectList; 
import com.jfimagine.jfgraph.shape.base.Port; 
import com.jfimagine.jfgraph.shape.base.Node; 
import com.jfimagine.jfgraph.shape.base.JFVersion;



import com.jfimagine.jfgraph.shape.rectangle.AbstractRectangle;


public class JFGroup extends AbstractShape{

   /**
    *   A XML string tag represents a group.
    */
   public  static final String	 XML_GROUP		="JFGroup";

   /**
    *   An rectangle object for the outline of this rectangle.
    */
   protected	Rect	m_rect	=new Rect();
   
   /**
    *   Internal object list within a group.
    */ 	
   protected ObjectList	m_objList=new ObjectList();

   /**
    *   Constructor for group.
    */
   public JFGroup(){
   	setObjectType(ShapeConst.SHAPETYPE_GROUP);
   	setXMLTag(XML_GROUP);
   	initNodes();
   }	


   /**
    *   Get the x offset of current group. 
    *   The x offset is the left-x coordinate position of this group.
    *
    *   @return  The x offset of current group.
    *
    */ 	
   public double getX(){
   	return m_rect.getX();
   }

   /**
    *   Get the y offset of current group. 
    *   The y offset is the top-y coordinate position of this group.
    *
    *   @return  The y offset of current group.
    *
    */ 	
   public double getY(){
   	return  m_rect.getY();
   }

   /**
    *   Get the width of current group. 
    *
    *   @return  The width of current group 'box'.
    *
    */ 	
   public double getWidth(){
   	return m_rect.getWidth();
   }

   /**
    *   Get the height of current group. 
    *
    *   @return  The height of current group 'box'.
    *
    */ 	
   public double getHeight(){
   	return m_rect.getHeight();
   }
      
   /**
    *   Get internal object list.
    *   @return Internal object list of this group.
    */
   public ObjectList getList(){
   	return m_objList;
   }	
   
   /**
    *   Set internal object list.
    *   @param objList A new internal object list.
    */
   public void setList(List objList){
   	m_objList.setList(objList); 
   	m_rect.setValue(getBoundsOfObjects());
   }	

   /**
    *   Get the fill format of current group.
    * 
    *   @return  The fill format.
    *
    */ 	
   public FillFormat getFillFormat(){
   	//get the fill format of an arbitrary object in the group objects list.	
	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		FillFormat fillFormat	=aShape.getFillFormat();
   		if (fillFormat!=null)
   			return fillFormat;
   	}
   	return null;
   }


   /**
    *   Set the fill format of current line.
    *
    *   @param fillFormat A new fill format.
    *
    */ 	
   public void setFillFormat(FillFormat fillFormat){
   	if (fillFormat==null)
   		return;
   		
   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setFillFormat(fillFormat);
   	}
   }


   /**
    *   Get the line format of current line.
    * 
    *   @return  The line format.
    *
    */ 	
   public LineFormat getLineFormat(){
   	//get the fill format of an arbitrary object in the group objects list.	
	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		LineFormat lineFormat	=aShape.getLineFormat();
   		if (lineFormat!=null)
   			return lineFormat;
   	}
   	return null;
   }

   /**
    *   Set the line format of current line.
    *
    *   @param lineFormat A new line format.
    *
    */ 	
   public void setLineFormat(LineFormat lineFormat){
   	if (lineFormat==null)
   		return;
   		
   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setLineFormat(lineFormat);
   	}
   }


   /**
    *   Get the arrow format of current object.
    * 
    *   @return  The arrow format.
    *
    */ 	
   public Arrow getArrow(){
   	//get the fill format of an arbitrary object in the group objects list.	
	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		Arrow arrow 	=aShape.getArrow();
   		if (arrow!=null)
   			return arrow;
   	}
   	return null;
   }


   /**
    *   Set the arrow of current line.
    *
    *   @param arrow A new arrow.
    *
    */ 	
   public void setArrow(Arrow arrow){
   	if (arrow==null)
   		return;
   		
   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setArrow(arrow);
   	}
   }


   /**
    *   Get the font format of current object.
    * 
    *   @return  The font format.
    *
    */ 	
   public FontFormat getFontFormat(){
   	return super.getFontFormat();
   } 

   /**
    *   Set the font format of current object.
    *
    *   @param fontFormat A new font format.
    *
    */ 	
   public void setFontFormat(FontFormat fontFormat){
   	super.setFontFormat(fontFormat);
   	
   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setFontFormat(fontFormat);
   	}
   }
   
   /**
    *   set disable scaling
    */
   public void  setDisableScaling(boolean disable){
   	super.setDisableScaling(disable);

   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setDisableScaling(disable);
   	}

   }

   /**
    *   set disable modifying properties
    */
   public void  setDisableModifyingProperties(boolean disable){
   	super.setDisableModifyingProperties(disable);

   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setDisableModifyingProperties(disable);
   	}
   }


   /**
    *   set disable motion
    */
   public void  setDisableMotion(boolean disable){
   	super.setDisableMotion(disable);

   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setDisableMotion(disable);
   	}
   }

   /**
    *   set if is invisible
    */
   public void  setInvisible(boolean invisible){
   	super.setInvisible(invisible);

   	Iterator it	=m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape aShape	=(AbstractShape)it.next();
   		aShape.setInvisible(invisible);
   	}
   }


   /**
    *   Set all nodes/ports/labels' parent, this method will be called
    *   after a clone method because of a clone method will not clone their parent.
    */ 	
   public void setParent(){
   	super.setParent();

   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		aShape.setParent();
	}
   }


   
   /** set if show or hide current object's design info
    */
   public void setShowDesign(boolean showDesign){
   	super.setShowDesign(showDesign);

   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		aShape.setShowDesign(showDesign);
	}
   }

   /**
    *   Get a max object id of current object,object id starts at 0.
    *   This action is same as getObjectId when the object is an indifidual object,
    *   but is different as getObjectId when the object is just a group object.
    * 
    *   @return  The object id.
    *
    */ 	
   public int getMaxObjectId(){
   	int maxId	=getObjectId();
   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		int objectId	=aShape.getMaxObjectId();
   		if (objectId>maxId)
   			maxId	=objectId;
	}

	return maxId;
   }

   /**
    *  Clear the access times of this object.
    *  
    */
   public void clearAccessTimes(){
   	super.clearAccessTimes();

   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		aShape.clearAccessTimes();
	}
   }
   
    /** set zoom scale
     *  @param zoomScale A new zoom scale.
     */	
    public void setZoomScale(double zoomScale){
    	super.setZoomScale(zoomScale);
    	m_objList.setZoomScale(zoomScale);
    }
   

   /**
    *   move relational ports while moving this object.
    *   @param movedList An object list that has already processed, so don't change them further.
    */ 	
   public void moveRelationalPorts(ObjectList movedList){
   	super.moveRelationalPorts(movedList);

   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		aShape.moveRelationalPorts(movedList);
	}
   }     

   /**
    *   unbound broken ports
    */ 	
   public void unboundBrokenPorts(){
   	super.unboundBrokenPorts();

   	Iterator it =m_objList.getList().iterator();
   	while (it!=null && it.hasNext()){
   		AbstractShape	aShape	=(AbstractShape)it.next();
   		aShape.unboundBrokenPorts();
	}
   }


   /**
    *   Get the bounds of this rectangle.
    *