svn-gvsig-desktop / trunk / libraries / libCq CMS for java.old / src / org / cresques / ui / cmd / CmdPLine.java @ 130
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/*
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* 20-sep-2004
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*/
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package org.cresques.ui.cmd; |
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import java.awt.event.MouseEvent; |
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import java.awt.geom.Point2D; |
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import java.util.Vector; |
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import org.cresques.px.PxLine; |
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import org.cresques.px.dxf.DxfPolyline; |
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import org.cresques.px.gml.Feature; |
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import org.cresques.px.gml.LineString; |
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import org.cresques.ui.CQCursor; |
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import org.cresques.ui.CQMapCanvas; |
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/**
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* Comando pline.
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* A?ade al canvas la capacidad de crear polilineas.
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* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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*/
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public class CmdPLine extends Cmd { |
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private Point2D ptIni = null; |
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private Vector pts = new Vector(); |
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private Feature pLine = null; |
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/**
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* Construye un nuevo CmdPan para el Canvas.
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* @param canvas
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*/
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public CmdPLine(CQMapCanvas canvas) {
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super(canvas);
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eventsWanted = LEFT | RIGHT | PRESS | RELEASE; |
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cursor = CQCursor.getCursor(CQCursor.SELECT_CURSOR); |
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} |
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/**
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* Recibe los eventos del rat?n.
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*/
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public void cmd(Point2D pt, int bt, int mouseEvent) { |
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if (mouseEvent == Cmd.RELEASE)
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if (bt == MouseEvent.BUTTON1) { |
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pts.add(pt); |
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pline(); |
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} else {
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pts = new Vector(); |
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} |
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} |
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/**
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* Realiza un desplazamiento de la vista.
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* @param ptIni Punto inicial.
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* @param ptFin Punto final.
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*/
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private void pline() { |
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if (pts.size() > 2) { |
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pLine.getGeometry().add((Point2D) pts.lastElement());
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} else if (pts.size() == 2) { |
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pLine = new Feature();
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pLine.setGeometry(new LineString());
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pLine.getGeometry().add((Point2D) pts.get(0)); |
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pLine.getGeometry().add((Point2D) pts.get(1)); |
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canvas.getApp().getCurrentLayer().add(pLine); |
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} |
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canvas.repaint(); |
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} |
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} |