mapview.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.maptools;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import mapcenter.service.*;
import mapcenter.weihu.*;

public class MapView extends JComponent implements MouseListener, MouseMotionListener {
  private Log log = LogFactory.getLog("WebGIS");
  private HashMap mapTools = new HashMap();
  private MapTool currTool = null;
  private MapHandle mapHandle = null;
  private Image buffimg = null;
  private JFrame container = null;
  private boolean initFlag = false;

  public void init() throws Exception{
    //this.setBackground(Color.white);
    this.addMouseListener(this);
    this.addMouseMotionListener(this);
    this.buffimg = this.createImage(this.getWidth(), this.getHeight());
    this.initFlag = true;
  }

  public void renderMap()throws Exception{
    Image image = mapHandle.render();
    int marginH = (image.getWidth(null) - this.getWidth())/2;
    int marginV = (image.getHeight(null) - this.getHeight())/2;
    this.getGraphics().drawImage(image, -marginH, -marginV, null);
  }

  public void setMapHandle(MapHandle mapHandle){
    this.mapHandle = mapHandle;
  }

  public MapHandle getMapHandle(){
    return mapHandle;
  }

  public void setContainer(JFrame frame){
    this.container = frame;
  }
  public JFrame getContainer(){
    return this.container;
  }

  public Image getBuffImg(){
    return buffimg;
  }

  public boolean isInited(){
    return initFlag;
  }

  public void setCurrentTool(String toolName)throws Exception{
    Object[] keys = mapTools.keySet().toArray();
    for(int i=0; i<keys.length; i++){
      MapTool mapTool = (MapTool)mapTools.get(keys[i]);
      mapTool.putValue(mapTool.SMALL_ICON,mapTool.originalIcon);
    }
    MapTool mapTool = (MapTool)mapTools.get(toolName);
    if(mapTool == null)throw new Exception("HashMap Key no find:"+toolName);
    mapTool.putValue(mapTool.SMALL_ICON,mapTool.selectedIcon);
    this.setCursor(mapTool.cursor);
    this.currTool = mapTool;
  }

  public void setToolBar(MapToolBar toolbar){
    ArrayList tools = toolbar.getAllTool();
    int toolCount = tools.size();
    for(int i=0; i<toolCount; i++){
      MapTool mapTool = (MapTool)tools.get(i);
      String toolName = (String)mapTool.getValue(mapTool.NAME);
      mapTools.put(toolName,mapTool);
    }
  }
  public void paint(Graphics g){
    try{
      //log.debug("mapview paint........");
      if(isInited() == true){
        Image image = mapHandle.render();
        int marginH = (image.getWidth(null) - this.getWidth())/2;
        int marginV = (image.getHeight(null) - this.getHeight())/2;
        g.drawImage(image, -marginH, -marginV, null);
        //if(currTool != null)currTool.paintOnMap(g);
      }
    }catch(Exception e){log.error(e);}
  }
  //============= MouseListener接口实现 =============
  public void mouseEntered(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseEntered(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mouseExited(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseExited(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mousePressed(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mousePressed(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mouseReleased(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseReleased(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mouseDragged(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseDragged(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mouseMoved(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseMoved(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
  public void mouseClicked(MouseEvent evt) {
    try{
      if(currTool != null)currTool.mouseClicked(new MapMouse(evt));
    }catch(Exception e){log.error(e);}
  }
}