| gvSIG desktop 1

/*

 * Created on 27-dic-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id: DwgObjectFactory.java 10857 2007-03-22 17:37:30Z azabala $

 * $Log$

 * Revision 1.19  2007-03-22 17:37:30  azabala

 * dont load dwg entities that are not implemented in fmap (or that we are not able to know their meaning)

 *

 * Revision 1.18  2007/03/20 19:55:27  azabala

 * source code cleaning

 *

 * Revision 1.17  2007/03/06 19:39:38  azabala

 * Changes to adapt dwg 12 to general architecture

 *

 * Revision 1.16  2007/03/02 20:31:22  azabala

 * *** empty log message ***

 *

 * Revision 1.15  2007/03/01 19:59:46  azabala

 * source code cleaning

 *

 * Revision 1.14  2007/02/22 20:45:51  azabala

 * changes to add dwg 12 entities creation

 *

 * Revision 1.13  2007/02/14 09:20:32  fdiaz

 * Eliminado un comentario y habilitado de nuevo el else del final del metodo create.

 *

 * Revision 1.12  2007/02/08 20:27:06  azabala

 * solved bug with lwpolylines

 *

 * Revision 1.11  2007/02/08 10:27:35  azabala

 * if the type is unknown it returns NULL

 *

 * Revision 1.10  2007/02/06 20:17:29  azabala

 * *** empty log message ***

 *

 * Revision 1.9  2007/02/02 12:39:52  azabala

 * Added new dwg entities

 *

 * Revision 1.8  2007/02/01 20:00:27  azabala

 * *** empty log message ***

 *

 * Revision 1.7  2007/01/31 18:20:58  fdiaz

 * A?adido un return null al final de metodo create por si no entra en ninguna de las condiciones.

 *

 * Revision 1.6  2007/01/31 10:01:11  fdiaz

 * A?adido el DwgDictionary.

 *

 * Revision 1.5  2007/01/30 19:40:23  azabala

 * *** empty log message ***

 *

 * Revision 1.4  2007/01/30 12:37:18  azabala

 * *** empty log message ***

 *

 * Revision 1.3  2007/01/24 20:14:31  azabala

 * implementation of reader of V14

 *

 * Revision 1.2  2007/01/12 19:35:00  azabala

 * *** empty log message ***

 *

 * Revision 1.1  2007/01/09 15:39:15  azabala

 * *** empty log message ***

 *

 *

 */

package com.iver.cit.jdwglib.dwg;

import com.iver.cit.jdwglib.dwg.objects.DwgArc;

import com.iver.cit.jdwglib.dwg.objects.DwgAttdef;

import com.iver.cit.jdwglib.dwg.objects.DwgAttrib;

import com.iver.cit.jdwglib.dwg.objects.DwgBlock;

import com.iver.cit.jdwglib.dwg.objects.DwgBlockControl;

import com.iver.cit.jdwglib.dwg.objects.DwgBlockHeader;

import com.iver.cit.jdwglib.dwg.objects.DwgCircle;

import com.iver.cit.jdwglib.dwg.objects.DwgDictionary;

import com.iver.cit.jdwglib.dwg.objects.DwgDictionaryVar;

import com.iver.cit.jdwglib.dwg.objects.DwgDimOrd;

import com.iver.cit.jdwglib.dwg.objects.DwgEllipse;

import com.iver.cit.jdwglib.dwg.objects.DwgEndblk;

import com.iver.cit.jdwglib.dwg.objects.DwgFace3D;

import com.iver.cit.jdwglib.dwg.objects.DwgHatch;

import com.iver.cit.jdwglib.dwg.objects.DwgIdBuffer;

import com.iver.cit.jdwglib.dwg.objects.DwgImage;

import com.iver.cit.jdwglib.dwg.objects.DwgImageDef;

import com.iver.cit.jdwglib.dwg.objects.DwgImageDefReactor;

import com.iver.cit.jdwglib.dwg.objects.DwgInsert;

import com.iver.cit.jdwglib.dwg.objects.DwgLayer;

import com.iver.cit.jdwglib.dwg.objects.DwgLayerControl;

import com.iver.cit.jdwglib.dwg.objects.DwgLayerIndex;

import com.iver.cit.jdwglib.dwg.objects.DwgLine;

import com.iver.cit.jdwglib.dwg.objects.DwgLwPolyline;

import com.iver.cit.jdwglib.dwg.objects.DwgMText;

import com.iver.cit.jdwglib.dwg.objects.DwgMeshPolyline;

import com.iver.cit.jdwglib.dwg.objects.DwgOle2Frame;

import com.iver.cit.jdwglib.dwg.objects.DwgPFacePolyline;

import com.iver.cit.jdwglib.dwg.objects.DwgPoint;

import com.iver.cit.jdwglib.dwg.objects.DwgPolyline2D;

import com.iver.cit.jdwglib.dwg.objects.DwgPolyline3D;

import com.iver.cit.jdwglib.dwg.objects.DwgRasterVariables;

import com.iver.cit.jdwglib.dwg.objects.DwgSeqend;

import com.iver.cit.jdwglib.dwg.objects.DwgSolid;

import com.iver.cit.jdwglib.dwg.objects.DwgSortEntStable;

import com.iver.cit.jdwglib.dwg.objects.DwgSpatialFilter;

import com.iver.cit.jdwglib.dwg.objects.DwgSpatialIndex;

import com.iver.cit.jdwglib.dwg.objects.DwgSpline;

import com.iver.cit.jdwglib.dwg.objects.DwgText;

import com.iver.cit.jdwglib.dwg.objects.DwgVertex2D;

import com.iver.cit.jdwglib.dwg.objects.DwgVertex3D;

import com.iver.cit.jdwglib.dwg.objects.DwgVertexMesh;

import com.iver.cit.jdwglib.dwg.objects.DwgVertexPFace;

import com.iver.cit.jdwglib.dwg.objects.DwgVertexPFaceFace;

import com.iver.cit.jdwglib.dwg.objects.DwgXRecord;

/**

 * Factory that creates dwg entities from its code (int value).

 * 

 * Some DWG entities dont have a fixed "type code". Instead, their type

 * is specified in the CLASSES section of the dwg file.

 * 

 * 

 * 

 * It's a singleton

 *  

 */

public class DwgObjectFactory {

        private static DwgObjectFactory _instance = new DwgObjectFactory();

        private DwgObjectFactory() {

        }

        /*

         * Constants to represent polyline2d, polyline3d,

         * vertex2d and vertex3d.

         * */

//        public static final byte POLYLINE2D = 40;

//        public static final byte POLYLINE3D = 41;

//        public static final byte VERTEX2D = 50;

//        public static final byte VERTEX3D = 51;

        public static final DwgObjectFactory getInstance() {

                return _instance;

        }

        /**

         * Creates a Dwg object instance from its type.

         * 

         * This method is used for DWG 13, 14 and 2000 files.

         * 

         * */

        public DwgObject create(int type, int index) {

                DwgObject obj = null;

                if (type == 0x11) {

                        obj = new DwgArc(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x1D) {

                        obj = new DwgPFacePolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x1E) {

                        obj = new DwgMeshPolyline(index);

                        obj.setGraphicsFlag(true);

                } 

                else if (type == 0x12) {

                        obj = new DwgCircle(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x13) {

                        obj = new DwgLine(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x1B) {

                        obj = new DwgPoint(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x0F) {

                        obj = new DwgPolyline2D(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x10) {

                        obj = new DwgPolyline3D(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x0A) {

                        obj = new DwgVertex2D(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x0B) {

                        obj = new DwgVertex3D(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x0C) {

                        obj = new DwgVertexMesh(index);

                        obj.setGraphicsFlag(true);

                }else if (type == 0x0D) {

                        obj = new DwgVertexPFace(index);

                        obj.setGraphicsFlag(true);

                }else if (type == 0x0E) {

                        obj = new DwgVertexPFaceFace(index);

                        obj.setGraphicsFlag(true);

                }

                else if (type == 0x6) {

                        obj = new DwgSeqend(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x1) {

                        obj = new DwgText(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x2) {

                        obj = new DwgAttrib(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x3) {

                        obj = new DwgAttdef(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x4) {

                        obj = new DwgBlock(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x5) {

                        obj = new DwgEndblk(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x2A) {

                        obj = new DwgDictionary(index);

                        obj.setGraphicsFlag(false);

                } else if (type == 0x30) {

                        obj = new DwgBlockControl(index);

                        obj.setGraphicsFlag(false);

                } else if (type == 0x31) {

                        obj = new DwgBlockHeader(index);

                        obj.setGraphicsFlag(false);

                } else if (type == 0x32) {

                        obj = new DwgLayerControl(index);

                        obj.setGraphicsFlag(false);

                } else if (type == 0x33) {

                        obj = new DwgLayer(index);

                        obj.setGraphicsFlag(false);

                } else if (type == 0x7) {

                        obj = new DwgInsert(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x2C) {

                        obj = new DwgMText(index);

                        obj.setGraphicsFlag(true);

                }

//                else if (type == 0x1F) {

//                        obj = new DwgSolid(index);

//                        obj.setGraphicsFlag(true);

//                } 

                else if (type == 0x23) {

                        obj = new DwgEllipse(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x24) {

                        obj = new DwgSpline(index);

                        obj.setGraphicsFlag(true);

                } 

//                else if (type == 0x15) {

//                        obj = new DwgLinearDimension(index);

//                        obj.setGraphicsFlag(true);

//                } 

                /*

                 * Segun los foros de OpenDWG:

                 * OLE2FRAME - 74 -> 0X4A

                   LWPOLYLINE - 77 -> 0X4D 

                   HATCH - 78 -> 0X4E

                 * 

                 * 

                 * */

                else if (type == 0x4D) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } 

                /*

                else if (type == 0x4A){

                        obj = new DwgOle2Frame(index);

                        obj.setGraphicsFlag(false);

                }

                else if (type == 0x4E){

                        obj = new DwgHatch(index);

                        obj.setGraphicsFlag(true);

                }

                else if (type == 0x4E) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x4F) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x50) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x51) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x52) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } else if (type == 0x53) {

                        obj = new DwgLwPolyline(index);

                        obj.setGraphicsFlag(true);

                } 

                */

                else {

//                        obj = new DwgObject(index);

                        return null;

                }

                obj.setType(type);

                return obj;

        }

        /**

         * Creates a DwgObject from its DXF name.

         * 

         * This method is used to create entities without a fixed dwg code type

         * (entities whose type is > 500)

         * 

         * This method is used for DWG 13, 14 and 2000 files.

         *  

         */

        public DwgObject create(String dxfName, int index) {

                //TODO De todas estas ver cuales son graficas,

                //para poner su graphicsFlag a true

                //ESTO MEJOR VA A SER CADA CLASE QUIEN LO HAGA, EN VEZ

                //DE LA FACTORIA

//                if (dxfName.equalsIgnoreCase("DICTIONARYVAR"))

//                        return new DwgDictionaryVar(index);

//                else if (dxfName.equalsIgnoreCase("HATCH"))

//                        return new DwgHatch(index);

//                else if (dxfName.equalsIgnoreCase("IDBUFFER"))

//                        return new DwgIdBuffer(index);

//                else if (dxfName.equalsIgnoreCase("IMAGE"))

//                        return new DwgImage(index);

//                else if (dxfName.equalsIgnoreCase("IMAGEDEF"))

//                        return new DwgImageDef(index);

//                else if (dxfName.equalsIgnoreCase("IMAGEDEFREACTOR"))

//                        return new DwgImageDefReactor(index);

//                else if (dxfName.equalsIgnoreCase("LAYER_INDEX"))

//                        return new DwgLayerIndex(index);

//                else 

                        if (dxfName.equalsIgnoreCase("LWPOLYLINE")){

                        DwgLwPolyline solution = new DwgLwPolyline(index);

                        solution.setGraphicsFlag(true);

                        return solution;

                }

//                else if (dxfName.equalsIgnoreCase("OLE2FRAME"))

//                        return new DwgOle2Frame(index);

//                else if (dxfName.equalsIgnoreCase("RASTERVARIABLES"))

//                        return new DwgRasterVariables(index);

//                else if (dxfName.equalsIgnoreCase("SORTENTSTABLE"))

//                        return new DwgSortEntStable(index);

//                else if (dxfName.equalsIgnoreCase("SPATIALFILTER"))

//                        return new DwgSpatialFilter(index);

//                else if (dxfName.equalsIgnoreCase("SPATIALINDEX"))

//                        return new DwgSpatialIndex(index);

//                else if (dxfName.equalsIgnoreCase("XRECORD"))

//                        return new DwgXRecord(index);

                return null;

        }

        /**

         * Creates a DWG object for DWG 12 files.

         *  

         * */

        public DwgObject create(byte kind, int index){

                switch(kind){

                case 1:

                        return new DwgLine(index);

                case 2:

                        return new DwgPoint(index);

                case 3:

                        return new DwgCircle(index);

//                case 4://un dxf shape es un fichero externo que define una forma

                        //(un tipo rudimentario de svg)

//                        return new DwgShape()

                case 7:

                        return new DwgText(index);

                case 8:

                        return new DwgArc(index);

//                case 9: //It is a 3D quad

//                        return new DwgTrace(index);

                case 11:

                        return new DwgSolid(index);

                case 12:

                        return new DwgBlockHeader(index);

                case 13:

                        return new DwgEndblk(index);

                case 14:

                        return new DwgInsert(index);

                case 15:

                        return new DwgAttdef(index);

                case 16:

                        return new DwgAttrib(index);        

                case 17://no estoy seguro de q esto sea SbEnd

                        return new DwgSeqend(index);

                case 19://polyline is a particular case. Creation responsability is of Reader

                        return null;

                case 20://vertex like polyline

                        return null;

                case 22:

                        return new DwgFace3D(index);

                case 23: //esto es Dim ??

                        return new DwgDimOrd(index);

//                case 25://no implementado

//                        return new DwgVPort(index);

                        default:

                                return null;

                }

        }

}