editortool.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/layer/editor/EditorTool.java,v $
// $RCSfile: EditorTool.java,v $
// $Revision: 1.2.2.1 $
// $Date: 2004/10/14 18:27:05 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.layer.editor;

import java.awt.Container;

import com.bbn.openmap.LightMapHandlerChild;
import com.bbn.openmap.omGraphics.OMAction;
import com.bbn.openmap.omGraphics.OMGraphic;
import com.bbn.openmap.omGraphics.event.MapMouseInterpreter;

/**
 * An EditorTool is a component that provides specific functionality
 * to the EditorLayer. The EditorTool is reponsible for modifying or
 * creating a set of OMGraphics in a certain way, where the OMGraphics
 * actually represent a specific set of objects on the map, and the
 * actions on the OMGraphics need to be controlled.
 */
public interface EditorTool extends MapMouseInterpreter, LightMapHandlerChild {

    /**
     * Method where the EditorLayer lets the tool know that the
     * editing function has come full circle, so the user interface
     * can be adjusted.
     */
    public void drawingComplete(OMGraphic omg, OMAction action);

    /**
     * A method that is checked by the EditorLayer to see if the
     * EditorTool wants to receive mouse events.
     */
    public boolean wantsEvents();

    /**
     * A method that lets the EditorTool know whether its interface
     * should be visible. Usually, called when the layer is turned on
     * or off.
     */
    public void setVisible(boolean value);

    /**
     * A method that lets the EditorTool respond to queries wondering
     * whether its interface is visible.
     */
    public boolean isVisible();

    /**
     * The method that allows an EditorTool provide it's GUI.
     */
    public Container getFace();
}