svn-gvsig-desktop / branches / v10 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / core / Handler.java @ 20100
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/*
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* Created on 10-feb-2005
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*
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* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.core; |
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import java.awt.geom.Point2D; |
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/**
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* <p>In a {@link GraphicLayer GraphicLayer}, each geometry drawn has control points named <i>handlers</i> that allow
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* user to move, modify, deform, ... that geometry.</p>
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*
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* <p>Each geometry will have its own handlers, and each one can have different behavior according its nature.</p>
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*
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* <p>The <code>Handler</code> interface defines the least set of common methods for all geometry handlers.</p>
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*/
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public interface Handler { |
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/**
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* <p>Generic method of moving in 2D a handler of a geometry using two numbers that
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* represent the 2D coordinates.</p>
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*
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* <p>Each handler of each geometry adapts this method to its own behavior in that geometry, that
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* implies that could not be implemented.</p>
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*
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* @param x first dimension coordinate
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* @param y second dimension coordinate
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*
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* @see #set(double, double)
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*/
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public void move(double x, double y); |
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/**
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* <p>Generic method of situating in 2D a handler of a geometry using two numbers that
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* represent the 2D coordinates.</p>
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*
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* <p>Each handler of each geometry adapts this method to its own behavior in that geometry, that
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* implies that could not be implemented.</p>
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*
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* @param x first dimension coordinate
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* @param y second dimension coordinate
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*
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* @see #move(double, double)
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* @see #getPoint()
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*/
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public void set(double x, double y); |
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/**
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* <p>Generic method of getting the 2D point that represents a handler of a geometry.</p>
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*
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* <p>Each handler of each geometry adapts this method to its own behavior in that geometry, that
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* implies that could not be implemented.</p>
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*
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* @return point 2D that represents this handler of geometry
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*
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* @see #set(double, double)
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* @see #move(double, double)
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*/
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public Point2D getPoint(); |
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/**
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* <p>Returns <code>true</code> if the object is a <code>Handler</code> and has the
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* same coordinates as this one.</p>
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*
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* @param obj the reference object with which to compare
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* @return <code>true</code> if this object is the same as the <code>obj</code> argument; <code>false</code> otherwise
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*
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* @see #getPoint()
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*/
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public boolean equalsPoint(Object obj); |
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} |