svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / core / adapter / GeometryAdapter.java @ 28544
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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,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.adapter; |
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import java.awt.Graphics2D; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.util.ArrayList; |
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import javax.print.attribute.PrintRequestAttributeSet; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.GeneralPathX; |
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import com.iver.cit.gvsig.fmap.core.symbols.ISymbol; |
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import com.iver.utiles.XMLEntity; |
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/**
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* Abstract adaptor to relate the geometries with the fframes and to be able to
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* integrate them in the Layout.
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*
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* @author Vicente Caballero Navarro
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*/
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public abstract class GeometryAdapter { |
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private ArrayList points = new ArrayList(); |
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private GeneralPathX shape;
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/**
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* Add a point to de geometry.
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*
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* @param point Point that is added.
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*
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* @return Number of points that contains the geometry.
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*/
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public int addPoint(Point2D point) { |
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points.add(point); |
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return points.size();
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} |
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/**
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* End the creation of the geometry with the last point added.
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*/
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public void end() { |
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obtainShape((Point2D) points.get(points.size() - 1)); |
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} |
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/**
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* Adds the GeneralPathX with all the points of the geometry.
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*
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* @param gpx GeneralPathX
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*/
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protected void setGPX(GeneralPathX gpx) { |
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shape = gpx; |
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} |
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/**
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* Returns the GeneralPathX.
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*
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* @return GeneralPathX.
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*/
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protected GeneralPathX getGPX() {
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return shape;
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} |
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/**
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* Obtains the geometry passing him as parameter the last point.
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*
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* @param p Last Point.
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*/
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public abstract void obtainShape(Point2D p); |
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/**
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* Applies the transformation to all the points of the geometry.
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*
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* @param at AffineTransform
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*/
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public void applyTransform(AffineTransform at) { |
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for (int i = 0; i < points.size(); i++) { |
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at.transform((Point2D) points.get(i), (Point2D) points.get(i)); |
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} |
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shape.transform(at); |
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} |
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/**
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* It draws the geometry on the Graphics that is passed like parameter.
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*
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* @param g Graphics
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* @param at AffineTransform
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* @param symbol FSymbol
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*/
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public abstract void draw(Graphics2D g, AffineTransform at, ISymbol symbol); |
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public abstract void print(Graphics2D g, AffineTransform at, ISymbol symbol, PrintRequestAttributeSet properties); |
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/**
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* Paints the geometry on the Graphics adding him the last point if the
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* parameter andLastPoint is true.
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*
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* @param g Graphics
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* @param at AffineTransform
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* @param andLastPoint If true add last point.
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*/
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public abstract void paint(Graphics2D g, AffineTransform at, |
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boolean andLastPoint);
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/**
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* Set the point of cursor.
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*
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* @param p Point of cursor.
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*/
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public abstract void pointPosition(Point2D p); |
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/**
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* Obtains the shape of the Geometry.
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*
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* @return FShape.
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*/
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public abstract FShape getShape(AffineTransform at); |
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/**
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* Returns all the points of Geometry.
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*
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* @return Array of points.
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*/
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public Point2D[] getPoints() { |
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return (Point2D[]) points.toArray(new Point2D[0]); |
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} |
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/**
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* Draws a handler in each vertex of the Geometry.
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*
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* @param g Graphics
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* @param at AffineTransform.
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*/
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public void drawVertex(Graphics2D g, AffineTransform at) { |
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Point2D[] ps = getPoints(); |
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Point2D[] pointRes = new Point2D[ps.length]; |
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at.transform(ps, 0, pointRes, 0, ps.length); |
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int d = 3; |
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for (int i = 0; i < pointRes.length; i++) { |
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g.fillRect((int) pointRes[i].getX() - d,
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(int) pointRes[i].getY() - d, d * 2, d * 2); |
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} |
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} |
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/**
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* Modifies a point of the Geometry from an index by the one that is passed
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* like parameter.
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*
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* @param pos Index
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* @param point Point
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*/
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public void changePoint(int pos, Point2D point) { |
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this.points.set(pos, point);
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} |
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/**
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* Add all the points of Geometry.
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*
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* @param points All points.
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*/
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public void setPoints(Point2D[] points) { |
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this.points.clear();
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for (int i = 0; i < points.length; i++) { |
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this.points.add(points[i]);
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public XMLEntity getXMLEntity() {
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XMLEntity xml = new XMLEntity();
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double[] ps = new double[points.size() * 2]; |
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int j = 0; |
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for (int i = 0; i < points.size(); i++) { |
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ps[j] = (((Point2D) (points.get(i))).getX());
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ps[j + 1] = (((Point2D) (points.get(i))).getY()); |
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j = j + 2;
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} |
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xml.putProperty("points", ps);
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xml.putProperty("className", this.getClass().getName()); |
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return xml;
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} |
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/**
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* DOCUMENT ME!
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*
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* @param xml DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public static GeometryAdapter createFromXML(XMLEntity xml) { |
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GeometryAdapter geometry = null;
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try {
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Class clase = Class.forName(xml.getStringProperty("className")); |
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geometry = (GeometryAdapter) clase.newInstance(); |
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} catch (Exception e) { |
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} |
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double[] ps = xml.getDoubleArrayProperty("points"); |
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Point2D[] pointsAux = new Point2D[ps.length / 2]; |
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int j = 0; |
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for (int i = 0; i < ps.length; i = i + 2) { |
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pointsAux[j] = new Point2D.Double(ps[i], ps[i + 1]); |
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j++; |
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} |
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geometry.setPoints(pointsAux); |
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geometry.end(); |
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return geometry;
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} |
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/**
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* Remove last point of Geometry.
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*/
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public void delLastPoint() { |
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if (points.size() > 0) { |
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points.remove(points.size() - 1);
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} |
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} |
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public GeometryAdapter cloneAdapter(){
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GeometryAdapter cloneAdapter=null;
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try {
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cloneAdapter = (GeometryAdapter)this.getClass().newInstance();
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} catch (InstantiationException e) { |
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} catch (IllegalAccessException e) { |
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} |
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cloneAdapter.points=(ArrayList)this.points.clone(); |
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cloneAdapter.shape=(GeneralPathX)this.shape.clone();
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return cloneAdapter;
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} |
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public Rectangle2D getBounds2D(){ |
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Rectangle2D r=shape.getBounds2D();
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double w=r.getWidth();
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double h=r.getHeight();
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boolean modified=false; |
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if (r.getWidth()<0.5) { |
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modified=true;
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w=0.5;
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} |
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if(r.getHeight()<0.5) { |
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modified=true;
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h=0.5;
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} |
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if (modified)
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return new Rectangle2D.Double(r.getX(),r.getY()-0.25,w,h); |
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return shape.getBounds2D();
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} |
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} |