mapoptiondialog.java

一个很有特点的地图平台,可以以动画方试展现电子地图,有拉近,拉远,滑动功能,最主要的是它是一个地图维护台,处理地图到数据库的数据导入

package mapcenter.weihu;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import mapcenter.service.*;
import com.mapinfo.coordsys.*;

public class MapOptionDialog extends JDialog implements ActionListener{
  private static final Log log = LogFactory.getLog("WebGIS");
  private MapHandle mapHandle = null;
  JPanel contentPanel = new JPanel();
  JPanel buttonPanel = new JPanel();
  JLabel unitLabel = new JLabel("距离单位:");
  JLabel coordLabel = new JLabel("坐标系:");
  JComboBox unitComb = null;
  JComboBox coordComb = null;
  JButton okButton = new JButton("开始");
  JButton noButton = new JButton("退出");

  public MapOptionDialog(Frame frame) {
    super(frame, "地图选项", false);
    try {
      unitComb = new JComboBox(new String[]{"公里","米"});
      coordComb = new JComboBox();
      coordComb.addItem("\"Non-Earth (kilometers)\", 0, 1");
      coordComb.addItem("\"Longitude / Latitude (WGS 84)\", 1, 104");
      mapHandle = ((MainFrame)frame).mapHandle;
      okButton.addActionListener(this);
      this.setSize(300,120);
      Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      Dimension frameSize = this.getSize();
      this.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
      jbInit();
    }
    catch(Exception ex){log.error(ex);}
  }

  private void jbInit() throws Exception {
    this.setContentPane(contentPanel);
    contentPanel.setLayout(new GridLayout(3, 2));
    buttonPanel.setLayout(new FlowLayout());
    contentPanel.add(unitLabel);
    contentPanel.add(unitComb);
    contentPanel.add(coordLabel);
    contentPanel.add(coordComb);
    contentPanel.add(new JLabel());
    contentPanel.add(buttonPanel);
    buttonPanel.add(okButton);
    buttonPanel.add(noButton);
  }

  public void actionPerformed(ActionEvent parm1){
    com.mapinfo.unit.LinearUnit Unit_Meter = com.mapinfo.unit.LinearUnit.meter;
    com.mapinfo.unit.LinearUnit Unit_Kilometer = com.mapinfo.unit.LinearUnit.kilometer;
    try{
      int index = unitComb.getSelectedIndex();
      com.mapinfo.unit.LinearUnit unit = null;
      if(index == 0){
        unit = Unit_Kilometer;
      }else{
        unit = Unit_Meter;
      }
      String csProj = (String)coordComb.getSelectedItem();
      mapHandle.getMapJ().setDistanceUnits(unit);
      mapHandle.getMapJ().setNumericCoordSys(CoordSys.createFromPRJ(csProj));
      mapHandle.getMapJ().setDisplayCoordSys(CoordSys.createFromPRJ(csProj));
      this.hide();
    }catch(Exception e){log.error(e);}
  }

  public void show(){
    com.mapinfo.unit.LinearUnit Unit_Meter = com.mapinfo.unit.LinearUnit.meter;
    com.mapinfo.unit.LinearUnit Unit_Kilometer = com.mapinfo.unit.LinearUnit.kilometer;
    try{
      com.mapinfo.unit.LinearUnit unit = mapHandle.getMapJ().getDistanceUnits();
      if(unit.equivalent(Unit_Kilometer)){
        unitComb.setSelectedIndex(0);
      }else if(unit.equivalent(Unit_Meter)){
        unitComb.setSelectedIndex(1);
      }
      for(int i=0; i<coordComb.getItemCount(); i++){
        String csProj = (String)coordComb.getItemAt(i);
        CoordSys coord = mapHandle.getMapJ().getNumericCoordSys();
        if(coord.equivalent(CoordSys.createFromPRJ(csProj))){
          coordComb.setSelectedIndex(i);
          super.show();
          return;
        }
      }
      coordComb.addItem("请选择坐标系!!!");
      coordComb.setSelectedItem("请选择坐标系!!!");
      super.show();
    }catch(Exception e){log.error(e);}
  }
  public static void main(String[] args){

  }
}