pointundefinedstate.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

// **********************************************************************
// 
// <copyright>
// 
//  BBN Technologies
//  10 Moulton Street
//  Cambridge, MA 02138
//  [phone]
// 
//  Copyright (C) BBNT Solutions LLC. All rights reserved.
// 
// </copyright>
// **********************************************************************
// 
// $Source:
// /cvs/distapps/openmap/src/openmap/com/bbn/openmap/omGraphics/editable/PointUndefinedState.java,v
// $
// $RCSfile: PointUndefinedState.java,v $
// $Revision: 1.3.2.2 $
// $Date: 2005/08/10 22:45:10 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.omGraphics.editable;

import java.awt.event.MouseEvent;

import com.bbn.openmap.omGraphics.EditableOMPoint;
import com.bbn.openmap.omGraphics.GrabPoint;
import com.bbn.openmap.omGraphics.OMGraphic;
import com.bbn.openmap.util.Debug;

public class PointUndefinedState extends GraphicUndefinedState {

    public PointUndefinedState(EditableOMPoint eomp) {
        super(eomp);
    }

    /**
     * In this state, we need to draw a rect from scratch. So, we
     * listen for a mouse down, and set both points there, and then
     * set the mode to rect edit.
     */
    public boolean mousePressed(MouseEvent e) {
        Debug.message("eomg",
                "PointStateMachine|undefined state|mousePressed = "
                        + graphic.getGraphic().getRenderType());

        GrabPoint gb = graphic.getGrabPoint(EditableOMPoint.CENTER_POINT_INDEX);
        gb.set(e.getX(), e.getY());
        graphic.setMovingPoint(gb);

        if (graphic.getGraphic().getRenderType() == OMGraphic.RENDERTYPE_OFFSET) {
            graphic.getGrabPoint(EditableOMPoint.OFFSET_POINT_INDEX)
                    .set(e.getX(), e.getY());
            graphic.getStateMachine().setOffsetNeeded(true);
            Debug.message("eomg",
                    "PointStateMachine|undefined state| *offset needed*");
        }

        graphic.getStateMachine().setEdit();
        return getMapMouseListenerResponse();
    }

    public boolean mouseMoved(MouseEvent e) {
        graphic.fireEvent(EOMGCursors.EDIT, i18n.get(PointUndefinedState.class,
                "Click_to_define_the_point_location.",
                "Click to define the point location."));
        return false;
    }
}