readxml.java

Java门电路画图器 基本功能： 1。文件的保存

package ding;

import org.w3c.dom.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import javax.xml.parsers.*;
import javax.swing.*;

/**
 * <p>Title: 门电路画图器</p>
 * <p>Description: www.1shu.net</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: EyeSome</p>
 * @author ES
 * @version 1.0
 */

public class readXml
    extends DefaultHandler {
  /**
   * 每个构件都初始40个,就是说每个元件的每种构件最大为40
   */
  yjRec inRec[] = new yjRec[40];
  yjLine inLine[] = new yjLine[40];
  yjCircle inCircle[] = new yjCircle[40];
  yjStr inStr[] = new yjStr[40];
  yjArc inArc[] = new yjArc[40];
  private int yuanjianNo = -1, lineNo = -1, recNo = -1, strNo = -1, arcNo = -1,
      circleNo = -1;
  private int yuanjianFlag = 0, lineFlag = 0, recFlag = 0, strFlag = 0,
      arcFlag = 0, circleFlag = 0;

  mainFrame mFrame;
  private int index;
  private Locator locator;
  boolean yuanjianTemp = false;
  String picpath, des;
  int id;

  //Constructor
  public readXml(mainFrame frame) {
    super(); //it must be done !
    mFrame = frame;
    yuanjianNo = -1;
  }

  public readXml(mainFrame frame, int tyuanjianNo) {
    super(); //it must be done !
    mFrame = frame;
    this.yuanjianNo = tyuanjianNo;
  }

  public readXml(mainFrame frame, boolean yuanjianTemp) {
    super(); //it must be done !
    mFrame = frame;
    this.yuanjianTemp = yuanjianTemp;
  }

  //nain method
  /**public  void readXmlMain(mainFrame frame) {
    mFrame = frame;
    try {
      SAXParserFactory sf = SAXParserFactory.newInstance();
      SAXParser sp = sf.newSAXParser();
      readXml reader = new readXml();
      sp.parse(new InputSource("src\\ding\\file.xml"), reader);
    }
    catch (Exception e) {
      e.printStackTrace();
    }
     }*/

  //Response the startDocument event
  public void startDocument() {
  }

//Response the startElement event
  public void startElement(String uri, String localName, String qName,
                           Attributes attrs) {
    int attrCount, i;
    //int x, y, r, width, height, x1, y1, x2, y2, startDu, Du, typeDu;
    //String str;
    if (yuanjianFlag == 1) {
      if (lineFlag == 1) {
        if (qName.equalsIgnoreCase("line")) {
          lineNo++; //计数加一
          inLine[lineNo] = new yjLine();
          inLine[lineNo].setValue(Integer.parseInt(attrs.getValue(0)),
                                  Integer.parseInt(attrs.getValue(1)),
                                  Integer.parseInt(attrs.getValue(2)),
                                  Integer.parseInt(attrs.getValue(3)));
        }
      }
      if (recFlag == 1) {
        if (qName.equalsIgnoreCase("rec")) {
          recNo++;
          inRec[recNo] = new yjRec();
          inRec[recNo].setValue(Integer.parseInt(attrs.getValue(0)),
                                Integer.parseInt(attrs.getValue(1)),
                                Integer.parseInt(attrs.getValue(2)),
                                Integer.parseInt(attrs.getValue(3)));
        }
      }
      if (strFlag == 1) {
        if (qName.equalsIgnoreCase("str")) {
          strNo++;
          inStr[strNo] = new yjStr();
          inStr[strNo].setValue(Integer.parseInt(attrs.getValue(0)),
                                Integer.parseInt(attrs.getValue(1)),
                                attrs.getValue(2));
        }

      }
      if (arcFlag == 1) {
        if (qName.equalsIgnoreCase("arc")) {
          arcNo++;
          inArc[arcNo] = new yjArc();
          inArc[arcNo].setValue(Integer.parseInt(attrs.getValue(0)),
                                Integer.parseInt(attrs.getValue(1)),
                                Integer.parseInt(attrs.getValue(2)),
                                Integer.parseInt(attrs.getValue(3)),
                                Integer.parseInt(attrs.getValue(4)),
                                Integer.parseInt(attrs.getValue(5)),
                                Integer.parseInt(attrs.getValue(6)));
        }
      }
      if (circleFlag == 1) {
        if (qName.equalsIgnoreCase("circle")) {
          circleNo++;
          inCircle[circleNo] = new yjCircle();
          inCircle[circleNo].setValue(Integer.parseInt(attrs.getValue(0)),
                                      Integer.parseInt(attrs.getValue(1)),
                                      Integer.parseInt(attrs.getValue(2)),
                                      Integer.parseInt(attrs.getValue(3)));
        }

      }
    }

    if (qName.equalsIgnoreCase("yuanjian")) {
      yuanjianFlag = 1;
      if (yuanjianTemp) {
        picpath = attrs.getValue(0);
        des = attrs.getValue(1);
      }else{
        id = Integer.parseInt(attrs.getValue(0));
        des = attrs.getValue(1);

      }

    }
    if (qName.equalsIgnoreCase("linep")) {
      lineFlag = 1;
    }
    if (qName.equalsIgnoreCase("recp")) {
      recFlag = 1;
    }
    if (qName.equalsIgnoreCase("arcp")) {
      arcFlag = 1;
    }
    if (qName.equalsIgnoreCase("circlep")) {
      circleFlag = 1;
    }
    if (qName.equalsIgnoreCase("strp")) {
      strFlag = 1;
    }
    if (qName.equalsIgnoreCase("yjt")) {
      mFrame.yjt[Integer.parseInt(attrs.getValue(0))].number = Integer.parseInt(
          attrs.getValue(1));
    }

  }

  //Response the endDocument event
  public void endDocument() {
  }

  //Response the endElement event
  public void endElement(String uri, String localName, String qName) {

    int i, j;
    if (qName.equalsIgnoreCase("yuanjian")) {
      //System.out.println("recNo:" + recNo + " lineNo:" + lineNo + " circleNo:" +
      //                   circleNo + " strNo:" + strNo + " arcNo:" + arcNo);
      yjRec tRec[] = new yjRec[recNo + 1];
      yjLine tLine[] = new yjLine[lineNo + 1];
      yjCircle tCircle[] = new yjCircle[circleNo + 1];
      yjStr tStr[] = new yjStr[strNo + 1];
      yjArc tArc[] = new yjArc[arcNo + 1];

      if (lineNo >= 0) {
        //yjLine tLine[] = new yjLine[lineNo + 1];
        for (i = 0; i <= lineNo; i++) {
          tLine[i] = new yjLine();
          tLine[i] = inLine[i].getValue();
        }
      }
      else {
        tLine = null;
      }
      if (recNo >= 0) {
        //yjRec tRec[] = new yjRec[recNo + 1];
        for (i = 0; i <= recNo; i++) {
          tRec[i] = inRec[i];
        }
      }
      else {
        tRec = null;
      }
      if (arcNo >= 0) {
        //yjArc tArc[] = new yjArc[arcNo + 1];
        for (i = 0; i <= arcNo; i++) {
          tArc[i] = inArc[i];
        }
      }
      else {
        tArc = null;
      }
      if (circleNo >= 0) {
        //yjCircle tCircle[] = new yjCircle[circleNo + 1];
        for (i = 0; i <= circleNo; i++) {
          tCircle[i] = inCircle[i];
        }
      }
      else {
        tCircle = null;
      }
      if (strNo >= 0) {
        //yjStr tStr[] = new yjStr[strNo + 1];
        for (i = 0; i <= strNo; i++) {
          tStr[i] = inStr[i];
        }
      }
      else {
        tStr = null;
      }
      yuanjianNo++;
      //System.out.println("|   yuanjianNo:" + yuanjianNo);
      //System.out.println("yuanjianNo:" + yuanjianNo);
      if (!yuanjianTemp) {
        mFrame.yjc[yuanjianNo] = new yuanjian(tRec, tLine, tCircle, tStr, tArc);
        //System.out.println("yuanjianNo:" + yuanjianNo);
        mFrame.yjc[yuanjianNo].des = des;
        mFrame.yjc[yuanjianNo].id = id;
        //System.out.println(id);
      }
      else {
        mFrame.yjt[yuanjianNo] = new yuanjiantemp(tRec, tLine, tCircle, tStr,
                                                  tArc);
        mFrame.yjt[yuanjianNo].picPath = this.picpath;
        mFrame.yjt[yuanjianNo].des = des;
        mFrame.yjt[yuanjianNo].id = yuanjianNo;
      }
      lineNo = -1;
      recNo = -1;
      strNo = -1;
      arcNo = -1;
      circleNo = -1;
      yuanjianFlag = 0;
    }
    if (qName.equalsIgnoreCase("linep")) {
      lineFlag = 0;
    }
    if (qName.equalsIgnoreCase("recp")) {
      recFlag = 0;
    }
    if (qName.equalsIgnoreCase("arcp")) {
      arcFlag = 0;
    }
    if (qName.equalsIgnoreCase("circlep")) {
      circleFlag = 0;
    }
    if (qName.equalsIgnoreCase("strp")) {
      strFlag = 0;
    }
    if (qName.equalsIgnoreCase("file")) {
      if (!yuanjianTemp) {
        mFrame.yjcNo = yuanjianNo + 1;
      }
      else {
        mFrame.yjtNo = yuanjianNo + 1;
      }

    }

  }

  //Print the fata error information
  public void fatalError(SAXParseException e) {
    /*System.out.println("\nFatal error information -->");
         System.out.println("\t" + e.getMessage());
         System.out.println("\tAt line " + locator.getLineNumber() +
                       ",column " + locator.getColumnNumber());*/
    JOptionPane.showMessageDialog(null, "严重的错误:" + e.getMessage());

  }

  //Print the usual error information
  public void error(SAXParseException e) {
    /*System.out.println("\nUsual error information -->");
         System.out.println("\t" + e.getMessage());
         System.out.println("\tAt line " + locator.getLineNumber() +
                       ",column " + locator.getColumnNumber());*/
    JOptionPane.showMessageDialog(null, "错误:" + e.getMessage());
  }

  //Print the warning information
  public void warning(SAXParseException e) {
    System.out.println("\nWarning information -->");
    System.out.println("\t" + e.getMessage());
    System.out.println("\tAt line " + locator.getLineNumber() + ",column " +
                       locator.getColumnNumber());
  }

  //Store the error locator object
  public void setDocumentLocator(Locator lct) {
    locator = lct;
  }

}