svn-gvsig-desktop / trunk / applications / appgvSIG / src / com / iver / cit / gvsig / project / documents / layout / FLayoutUtilities.java @ 25996
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/*
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* Created on 16-jul-2004
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*
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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,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.project.documents.layout; |
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import java.awt.Point; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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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 org.cresques.cts.IProjection; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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/**
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* Clase que recoge m?todos est?ticos sobre el Layout.
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*
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* @author Vicente Caballero Navarro
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*/
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public class FLayoutUtilities { |
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/**
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* Devuelve true si las dos ArrayList que se le pasan como parametro son
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* iguales.
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*
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* @param n lista anterior
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* @param l lista actual
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*
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* @return true si los ArrayList son iguales.
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*/
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public static boolean isEqualList(ArrayList n, ArrayList l) { |
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if (n.size() != l.size()) {
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return false; |
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} |
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for (int i = 0; i < n.size(); i++) { |
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if (l.get(i) != n.get(i)) {
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return false; |
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} |
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} |
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return true; |
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} |
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/**
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* Pasa una distancia en pixels a unidades del folio.
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*
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* @param d distancia en pixels.
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* @param at Matriz de transformaci?n.
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*
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* @return distancia en unidades de folio.
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*/
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public static double toSheetDistance(double d, AffineTransform at) { |
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double dist = d / at.getScaleX(); // pProv.x; |
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return dist;
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} |
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/**
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* Pasa una distancia de coordenadas del folio a pixels.
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*
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* @param d distancia en coordenadas de folio.
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* @param at Matriz de transformaci?n.
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*
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* @return double en pixels.
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*/
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public static double fromSheetDistance(double d, AffineTransform at) { |
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Point2D.Double pSheet1 = new Point2D.Double(0, 0); |
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Point2D.Double pSheet2 = new Point2D.Double(1, 0); |
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Point2D.Double pScreen1 = new Point2D.Double(); |
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Point2D.Double pScreen2 = new Point2D.Double(); |
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try {
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at.transform(pSheet1, pScreen1); |
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at.transform(pSheet2, pScreen2); |
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} catch (Exception e) { |
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System.err.print(e.getMessage());
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} |
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return pScreen1.distance(pScreen2) * d;
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} |
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/**
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* Pasa un punto en pixels a coordenadas del folio.
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*
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* @param pScreen pixels.
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* @param at Matriz de transformaci?n.
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*
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* @return Point2D en coordenadas de folio.
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*/
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public static Point2D.Double toSheetPoint(Point2D pScreen, |
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AffineTransform at) {
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Point2D.Double pWorld = new Point2D.Double(); |
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AffineTransform at1;
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try {
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at1 = at.createInverse(); |
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at1.transform(pScreen, pWorld); |
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} catch (NoninvertibleTransformException e) { |
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} |
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return pWorld;
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} |
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/**
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* Pasa un ret?ngulo de pixels a coordenadas del folio.
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*
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* @param r rect?ngulo en coordenadas de pixels a coordenadas de folio.
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* @param at Matriz de transformaci?n.
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*
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* @return Rectangle2D en coordenadas de folio.
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*/
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public static Rectangle2D.Double toSheetRect(Rectangle2D r, |
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AffineTransform at) {
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Point2D.Double pSheet = toSheetPoint(new Point2D.Double(r.getX(), |
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r.getY()), at); |
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Point2D.Double pSheetX = toSheetPoint(new Point2D.Double(r.getMaxX(), |
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r.getMinY()), at); |
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Point2D.Double pSheetY = toSheetPoint(new Point2D.Double(r.getMinX(), |
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r.getMaxY()), at); |
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Rectangle2D.Double res = new Rectangle2D.Double(); |
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res.setRect(pSheet.getX(), pSheet.getY(), pSheet.distance(pSheetX), |
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pSheet.distance(pSheetY)); |
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return res;
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} |
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/**
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* Pasa de un punto en coordenadas del folio a pixels.
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*
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* @param pSheet punto en coordenadas de folio.
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* @param at Matriz de transformaci?n.
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*
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* @return Point2D en pixels.
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*/
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public static Point2D.Double fromSheetPoint(Point2D pSheet, |
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AffineTransform at) {
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Point2D.Double pScreen = new Point2D.Double(); |
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try {
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at.transform(pSheet, pScreen); |
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} catch (Exception e) { |
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System.err.print(e.getMessage());
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} |
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return pScreen;
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} |
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/**
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* Pasa un rect?ngulo en coordenadas del folio a pixels.
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*
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* @param r rect?ngulo en coordenadas de folio.
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* @param at Matriz de transformaci?n.
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*
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* @return Rectangle2D en pixels.
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*/
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public static Rectangle2D.Double fromSheetRect(Rectangle2D r, |
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AffineTransform at) {
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Point2D.Double pSheet = new Point2D.Double(r.getX(), r.getY()); |
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Point2D.Double pSX = new Point2D.Double(r.getMaxX(), r.getMinY()); |
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Point2D.Double pSY = new Point2D.Double(r.getMinX(), r.getMaxY()); |
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Point2D.Double pScreen = new Point2D.Double(); |
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Point2D.Double pScreenX = new Point2D.Double(); |
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Point2D.Double pScreenY = new Point2D.Double(); |
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try {
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at.transform(pSheet, pScreen); |
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at.transform(pSX, pScreenX); |
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at.transform(pSY, pScreenY); |
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} catch (Exception e) { |
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System.err.print(e.getMessage());
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} |
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Rectangle2D.Double res = new Rectangle2D.Double(); |
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res.setRect(pScreen.getX(), pScreen.getY(), pScreen.distance(pScreenX), |
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pScreen.distance(pScreenY)); |
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return res;
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} |
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/**
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* Obtiene el punto ajustado al grid del layout.
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*
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* @param p Punto a ajustar.
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* @param distX Distancia m?nima en pixels de X.
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* @param distY Distancia m?nima en pixels de Y.
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* @param at Matriz de transformaci?n.
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*/
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public static Point getPointGrid(Point p, double distX, double distY, |
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AffineTransform at) {
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Point2D.Double auxp = FLayoutUtilities.fromSheetPoint(new Point2D.Double( |
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0, 0), at); |
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int x = (int)(((p.getX() - distX) % distX) - ((auxp.x) % distX)); |
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int y = (int)(((p.getY() - distY) % distY) - ((auxp.y) % distY)); |
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return new Point((int)(p.getX()-x),(int)(p.getY()-y)); |
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} |
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/**
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* Cuando se dibuja sobre el graphics todo se tiene que situar en enteros y
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* aqu? lo que se comprueba es que si los valores que contiene el
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* Rectangle2D, que toma como par?metro, supera los valores soportados por
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* un entero.
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*
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* @param r Rectangle2D a comprobar si los valores que contiene no superan
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* a los que puede tener un entero.
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*
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* @return true si no se han superado los l?mites.
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*/
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public static boolean isPosible(Rectangle2D.Double r) { |
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if ((r.getMaxX() > Integer.MAX_VALUE) || |
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(r.getMaxY() > Integer.MAX_VALUE) ||
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(r.getMinX() < Integer.MIN_VALUE) ||
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(r.getMinY() < Integer.MIN_VALUE) ||
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(r.getWidth() > Integer.MAX_VALUE) ||
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(r.getHeight() > Integer.MAX_VALUE)) {
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return false; |
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} |
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return true; |
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} |
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/**
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* Devuelve un long representando a la escala en funci?n de que unidad de
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* medida se pase como par?metro.
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*
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* @param map FMap
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* @param h Rect?ngulo.
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*
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* @return escala.
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*/
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/* public static long getScaleView(FMap map, double h) {
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if (map == null) {
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return 0;
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}
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long scaleView = 1;
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double hextent = map.getViewPort().getExtent().getHeight();
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double hview = h;
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scaleView = (long) (Attributes.CHANGE[map.getViewPort().getMapUnits()] * (hextent / hview));
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return scaleView;
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}
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*/
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public static long getScaleView(ViewPort viewPort,double wcm,double wpixels) { |
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double dpi = wpixels/wcm*2.54; |
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IProjection proj = viewPort.getProjection(); |
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//if (viewPort.getImageSize() == null)
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// return -1;
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if (viewPort.getAdjustedExtent() == null) { |
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return 0; |
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} |
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if (proj == null || viewPort.getImageSize() == null) { |
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return (long) (viewPort.getAdjustedExtent().getHeight() / wcm * Attributes.CHANGE[viewPort |
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.getMapUnits()]); |
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} |
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return (long) proj.getScale(viewPort.getAdjustedExtent().getMinX(), |
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viewPort.getAdjustedExtent().getMaxX(), |
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wpixels, dpi); |
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} |
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} |