graphicundefinedstate.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/GraphicUndefinedState.java,v
// $
// $RCSfile: GraphicUndefinedState.java,v $
// $Revision: 1.2.2.2 $
// $Date: 2005/08/10 22:45:11 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.omGraphics.editable;

import java.awt.event.MouseEvent;

import com.bbn.openmap.layer.util.stateMachine.State;
import com.bbn.openmap.omGraphics.EditableOMGraphic;
import com.bbn.openmap.omGraphics.OMGraphic;
import com.bbn.openmap.util.Debug;

public class GraphicUndefinedState extends State implements EOMGUndefinedState {

    protected EditableOMGraphic graphic;

    public GraphicUndefinedState(EditableOMGraphic eomg) {
        graphic = eomg;
    }

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

        // graphic.getGrabPoint(EditableOMGraphic.STARTING_POINT_INDEX).set(e.getX(),
        // e.getY());
        // graphic.getGrabPoint(EditableOMGraphic.ENDING_POINT_INDEX).set(e.getX(),
        // e.getY());
        // graphic.setMovingPoint(graphic.getGrabPoint(EditableOMGraphic.ENDING_POINT_INDEX));

        if (graphic.getGraphic().getRenderType() == OMGraphic.RENDERTYPE_OFFSET) {
            graphic.getStateMachine().setOffsetNeeded(true);
            Debug.message("eomg",
                    "GraphicStateMachine|undefined state| *offset needed*");
        }
        graphic.getStateMachine().setEdit();
        return getMapMouseListenerResponse();
    }

    public boolean mouseMoved(MouseEvent e) {
        Debug.message("eomgdetail",
                "GraphicStateMachine|undefined state|mouseMoved");
        graphic.fireEvent(EOMGCursors.EDIT,
                i18n.get(GraphicUndefinedState.class,
                        "Click_and_Drag_to_define_graphic.",
                        "Click and Drag to define graphic."));
        return false;
    }

}