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/*

 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.

 *

 * Copyright (C) 2004-5.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 * cresques@gmail.com

 */

package org.cresques.px.dxf;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.ViewPortData;

import org.cresques.px.Extent;

import java.awt.Font;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

/**

 * Entidad TEXT de AutoCAD

 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>* @author administrador

 *

 * jmorell, 050406: El segundo punto es opcional.

 */

public class DxfText extends DxfEntity {

    public final static int ALIGN_LEFT = 0;

    public final static int ALIGN_CENTER = 1;

    public final static int ALIGN_RIGHT = 2;

    public final static int ALIGN_ALIGNED = 3;

    public final static int ALIGN_MIDDLE = 4;

    public final static int ALIGN_FIT = 5;

    private String text = null;

    Point2D[] pts;

    private Point2D pt;

    private double rot = 0.0;

    private double h = 1.0;

    int align = ALIGN_LEFT;

    private boolean twoPointsFlag;

    public DxfText(IProjection proj, DxfLayer layer, String txt) {

        super(proj, layer);

        //System.out.println("Dxf: TEXT '"+txt+"'.");

        extent = new Extent();

        text = txt;

        pts = new Point2D[2];

        pt = new Point2D.Double();

        twoPointsFlag = false;

    }

    public void setPt(Point2D pt) {

        this.pt = pt;

    }

    public Point2D getPt() {

        return pt;

    }

    public void setTwoPointsFlag(boolean f) {

        twoPointsFlag = f;

    }

    public boolean getTwoPointsFlag() {

        return twoPointsFlag;

    }

    public void setPt1(Point2D pt) {

        pts[0] = pt;

        extent.add(pt);

    }

    public Point2D getPt1() {

        return pts[0];

    }

    public void setPt2(Point2D pt) {

        pts[1] = pt;

        extent.add(pt);

    }

    public Point2D getPt2() {

        return pts[1];

    }

    public void setHeight(double h) {

        this.h = h;

    }

    public void setRotation(double r) {

        rot = r;

    }

    public double getRotation() {

        return rot;

    }

    public String getText() {

        return text;

    }

    public void reProject(ICoordTrans rp) {

        Point2D[] savePts = pts;

        pts = new Point2D[2];

        extent = new Extent();

        Point2D ptDest = null;

        for (int i = 0; i < savePts.length; i++) {

            ptDest = rp.getPDest().createPoint(0.0, 0.0);

            if (savePts[i] == null) {

                ptDest = null;

            } else {

                ptDest = rp.convert((Point2D) savePts[i], ptDest);

                extent.add(ptDest);

            }

            pts[i] = ptDest;

        }

        // Reproyecto la altura del texto

        Point2D ptOrig = rp.getPOrig().createPoint(savePts[0].getX(),

                                                   savePts[0].getY() + h);

        ptDest = rp.getPDest().createPoint(0D, 0D);

        ptDest = rp.convert(ptOrig, ptDest);

        h = ptDest.getY() - pts[0].getY();

        setProjection(rp.getPDest());

    }

    public void draw(Graphics2D g, ViewPortData vp) {

        if (dxfColor == AcadColor.BYLAYER) {

            g.setColor(layer.getColor());

        } else {

            g.setColor(AcadColor.getColor(dxfColor));

        }

        Font fntSave = g.getFont();

        Font fnt;

        Point2D ptT0 = new Point2D.Double(pts[0].getX(), pts[0].getY());

        Point2D ptT1 = new Point2D.Double(pts[0].getX() + h, pts[0].getY() + h);

        vp.mat.transform(ptT0, ptT0);

        vp.mat.transform(ptT1, ptT1);

        fnt = new Font(fntSave.getName(), fntSave.getStyle(),

                       (int) (ptT1.getX() - ptT0.getX()));

        g.setFont(fnt);

        ptT0.setLocation(pts[0].getX(), pts[0].getY());

        vp.mat.transform(ptT0, ptT0);

        // Codigo para implementar rotacion de textos.

        // Falta depurar.

        /*System.out.println("040906: rot = " + rot);

        //angle = pathLen.angleAtLength(midDistance);

        rot = Math.toRadians(rot);

        if (rot < 0) rot = rot + 2.0*Math.PI;

        if ((rot > (Math.PI/2)) && (rot < (3 * Math.PI /2))) rot = rot - (Math.PI/2.0);

        rot = Math.toDegrees(rot);

        //theLabel.setRotation(Math.toDegrees(angle));

        AffineTransform transfRot = AffineTransform.getRotateInstance(rot, ptT0.getX(), ptT0.getY());

        AffineTransform ant = g.getTransform();

        g.setTransform(transfRot);*/

        g.drawString(text, (int) ptT0.getX(), (int) ptT0.getY());

        g.setFont(fntSave);

        //g.setTransform(ant);

    }

    /* (non-Javadoc)

     * @see org.cresques.px.dxf.DxfEntity#toDxfFileString()

     */

    public String toDxfString() {

        // TODO Auto-generated method stub

        return "";

    }

}