java 地图查看器

/**
 * @(#)GisApp.java
 * [e-mail]
 * GisApp application
 * @author
 * @version 1.00 2010/7/25
 */

import com.mapinfo.beans.tools.*;
import com.mapinfo.beans.vmapj.VisualMapJ;
import com.mapinfo.mapj.LabelProperties;
import com.mapinfo.mapj.Layer;
import com.mapinfo.mapj.Layers;
import com.mapinfo.mapj.MapJ;
import com.mapinfo.util.DoublePoint;

import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyVetoException;
import java.io.IOException;
import java.util.Enumeration;
import java.util.concurrent.atomic.AtomicReference;


public class GisApp extends JFrame {

    private VisualMapJ mapCtrl = null;
    private JStatusBar myBar = null;
    private MapToolBar toolBar;
    private JPopupMenu popMenu = null;
    private final int MOVE2LEFT = 1;
    private final int MOVE2RIGHT = 2;
    private final int MOVE2UP = 3;
    private final int MOVE2DOWN = 4;

    public GisApp() {

        this.setSize(1000, 468);
        this.setTitle("java gis ");
        initToolBar();
        initContextMenu();
        makeCenter(this);
        mapCtrl = new VisualMapJ();
        mapCtrl.addMouseWheelListener(new MouseWheelListener() {
            public void mouseWheelMoved(MouseWheelEvent e) {

                int type = e.getWheelRotation();
                int x = e.getX();
                int y = e.getY();
                try {
                    double zoom = mapCtrl.getMapJ().getZoom();
                    myBar.getStatus(1).setText(String.format("zoom=%f", zoom));
                    DoublePoint dp = mapCtrl.getMapJ().transformScreenToNumeric(new DoublePoint(x, y));
                    myBar.getStatus(1).setText(String.format("zoom=%f", zoom));
                    if (type == -1) {
                        zoom = zoom / 2;
                        mapCtrl.getMapJ().setZoomAndCenter(zoom, dp);
                        mapCtrl.repaint();
                    } else {
                        zoom = zoom * 2;
                        mapCtrl.getMapJ().setZoomAndCenter(zoom, dp);
                        mapCtrl.repaint();
                    }
                }
                catch (Exception ex) {
                }
            }
        }

        );
        mapCtrl.addMouseMotionListener(new

                MouseMotionAdapter() {
                    public void mouseMoved(MouseEvent e) {
                        int x = e.getX();
                        int y = e.getY();
                        try {
                            DoublePoint dp = mapCtrl.getMapJ().transformScreenToNumeric(new DoublePoint(x, y));
                            myBar.getStatus(0).setText(String.format("x=%f y=%f", dp.x, dp.y));
                            double zoom = mapCtrl.getMapJ().getZoom();
                            myBar.getStatus(1).setText(String.format("zoom=%f", zoom));
                        } catch (Exception e1) {
                            e1.printStackTrace();
                        }
                    }
                }

        );
        mapCtrl.addMouseListener(new

                MouseAdapter() {
                    public void mouseClicked(MouseEvent e) {
                        if (e.getButton() == e.BUTTON3) {
                            popMenu.show(GisApp.this, e.getX(), e.getY());
                        }
                    }
                }

        );

        setLayerAttribute(mapCtrl.getMapJ());
        this.setLayout(new BorderLayout());
        this.getContentPane().add(toolBar, BorderLayout.NORTH);
        this.getContentPane().add(mapCtrl, BorderLayout.CENTER);
        initStatusBar();
        this.setVisible(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }


    private void initStatusBar() {
        JPanel sPanel = new JPanel();
        sPanel.setSize(600, 30);
        int widths[] = {200, 150, 150, 160};
        myBar = new JStatusBar(widths, sPanel);
        this.getContentPane().add(sPanel, BorderLayout.SOUTH);
    }

    private void initToolBar() {
        toolBar = new MapToolBar();
        JButton btJb;
        toolBar.removeAllMapTools();
        toolBar.add(btJb = new JButton("open"));
        toolBar.add(new ZoomInMapTool());
        toolBar.add(new ZoomOutMapTool());
        toolBar.add(new PanMapTool());
        toolBar.add(new RecenterMapTool());
        toolBar.add(new RulerMapTool());
        toolBar.add(new InfoMapTool());
        toolBar.add(new RectangleSelectionMapTool());
        toolBar.add(new RadiusSelectionMapTool());
        btJb.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JFileChooser chooser = new JFileChooser();
                FileNameExtensionFilter filter = new FileNameExtensionFilter("GST files", "gst");
                chooser.setFileFilter(filter);
                int returnVal = chooser.showOpenDialog(GisApp.this);
                if (returnVal == JFileChooser.APPROVE_OPTION) {
                    String fileName = chooser.getSelectedFile().getAbsolutePath();
                    String dir = chooser.getCurrentDirectory().getAbsolutePath();
                    try {
                        mapCtrl.getMapJ().loadGeoset(fileName, dir, null);
                        mapCtrl.repaint();
                        Enumeration toolList = toolBar.getMapTools();
                        while (toolList.hasMoreElements()) {
                            MapTool tool = (MapTool) toolList.nextElement();
                            try {
                                if (tool instanceof PanMapTool) {
                                    tool.setSelected(true);
                                    break;
                                }
                            } catch (PropertyVetoException e1) {
                                e1.printStackTrace();
                            }
                        }
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                }

            }
        });
    }

    private void makeCenter(Component c) {
        int x;
        int y;
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        this.setSize(screenSize.width, screenSize.height - toolBar.getHeight() - 1);
        x = screenSize.width / 2 - c.getWidth() / 2;
        y = screenSize.height / 2 - c.getHeight() / 2;
        c.setLocation(x, y);

    }

    private void zoomIn() {
        double zoom = 0;
        try {
            zoom = mapCtrl.getMapJ().getZoom();
            myBar.getStatus(1).setText(String.format("zoom=%f", zoom));
            zoom = zoom / 2;
            mapCtrl.getMapJ().setZoom(zoom);
            mapCtrl.repaint();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void zoomOut() {
        double zoom = 0;
        try {
            zoom = mapCtrl.getMapJ().getZoom();
            myBar.getStatus(1).setText(String.format("zoom=%f", zoom));
            zoom = zoom * 2;
            mapCtrl.getMapJ().setZoom(zoom);
            mapCtrl.repaint();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * @param curTool
     */
    private void selectTool(MapTool curTool) {
        Enumeration toolList = toolBar.getMapTools();
        while (toolList.hasMoreElements()) {
            MapTool tool = (MapTool) toolList.nextElement();
            try {
                if (tool.toString().equals(curTool.toString())) {
                    tool.setSelected(true);
                    break;
                }
            } catch (PropertyVetoException e1) {
                e1.printStackTrace();
            }
        }
    }

    /**
     * @param actionType
     */

    private void moveAction(int actionType) {
        try {
            double x = mapCtrl.getMapJ().getCenter().x;
            double y = mapCtrl.getMapJ().getCenter().y;
            double dx = mapCtrl.getMapJ().getBounds().width() / 2;
            double dy = mapCtrl.getMapJ().getBounds().height() / 2;
            switch (actionType) {
                case MOVE2LEFT:
                    x += dx;
                    break;
                case MOVE2RIGHT:
                    x -= dx;
                    break;
                case MOVE2UP:
                    y -= dy;
                    break;
                case MOVE2DOWN:
                    y += dy;
                    break;
                default:
                    break;
            }
            mapCtrl.getMapJ().setCenter(new DoublePoint(x, y));
            mapCtrl.repaint();

        } catch (Exception ex) {
        }
    }

    private void setLayerAttribute(MapJ mapj) {
        Layers lys = mapj.getLayers();
        int len = lys.size();
        for (int i = 0; i < len; i++) {
            Layer la = lys.elementAt(i);
            LabelProperties lp = new LabelProperties(la.getLabelProperties());
            com.mapinfo.graphics.Rendition re = lp.getRendition();
            re.setValue(com.mapinfo.graphics.Rendition.FONT_FAMILY, "宋体");
            lp.setRendition(re);
            la.setVisible(true);
        }
    }

    private void initContextMenu() {
        popMenu = new JPopupMenu();
        JMenuItem zoomIn = new JMenuItem("放大");
        zoomIn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                zoomIn();
            }
        });
        popMenu.add(zoomIn);
        JMenuItem zoomOut = new JMenuItem("缩小");
        zoomOut.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                zoomOut();
            }
        });
        popMenu.add(zoomOut);
        popMenu.addSeparator();
        JMenuItem move2Left = new JMenuItem("向左移动");
        move2Left.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                moveAction(MOVE2LEFT);
            }
        });
        popMenu.add(move2Left);
        JMenuItem move2Right = new JMenuItem("向右移动");
        move2Right.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                moveAction(MOVE2RIGHT);
            }
        });
        popMenu.add(move2Right);
        JMenuItem move2Up = new JMenuItem("向上移动");
        move2Up.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                moveAction(MOVE2UP);
            }
        });
        popMenu.add(move2Up);
        JMenuItem move2Down = new JMenuItem("向下移动");
        move2Down.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                moveAction(MOVE2DOWN);
            }
        });
        popMenu.add(move2Down);
    }


    public static void main(String[] args) {
        GisApp app = new GisApp();
        /*
        ImageRequestComposer imageRC = ImageRequestComposer.create(mapj, 256, Color.blue, "image/gif");
        MapXtremeImageRenderer renderer =new MapXtremeImageRenderer("http://localhost:8080/mapxtreme45/servlet/mapxtreme");
        renderer.render(imageRC);
        renderer.toFile("e:/12.gif");
     */
    }
}