DxfTABLE_LTYPE_ITEM.java

/*
 * Library name : dxf
 * (C) 2006 Micha�l Michaud
 * 
 * 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:
 *
 * michael.michaud@free.fr
 *
 */

package org.jgrasstools.gears.io.dxfdwg.libs.dxf;

import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * The LTYPE item in the TABLES section
 * There is a static reader to read the item in a DXF file
 * and a toString method able to write it in a DXF form
 * @author Micha�l Michaud
 * @version 0.5.0
 */
// History
public class DxfTABLE_LTYPE_ITEM extends DxfTABLE_ITEM {
    private String description;
    private int alignment;
    private float patternLength;
    private float[] pattern;

    public DxfTABLE_LTYPE_ITEM(String name, int flags) {
        super(name, flags);
        this.description = "";
        this.alignment = 0;
        this.patternLength = 1f;
        this.pattern = new float[]{1f};
    }

    public DxfTABLE_LTYPE_ITEM(String name, int flags, String description, int alignment, float patternLength, float[] pattern) {
        super(name, flags);
        this.description = description;
        this.alignment = alignment;
        this.patternLength = patternLength;
        this.pattern = pattern;
    }
    
    public String getDescription() {return description;}
    public void setDescription(String description) {this.description = description;}
    public int getAlignment() {return alignment;}
    public void setAlignment(int alignment) {this.alignment = alignment;}
    public float getPatternLength() {return patternLength;}
    public void setPatternLength(float patternLength) {this.patternLength = patternLength;}
    public float[] getPattern() {return pattern;}
    public void setPattern(float[] pattern) {this.pattern = pattern;}

    public static Map readTable(RandomAccessFile raf) throws IOException {
        DxfTABLE_LTYPE_ITEM item = new DxfTABLE_LTYPE_ITEM("DEFAULT", 0);
        Map table  = new LinkedHashMap();
        try {
            DxfGroup group;
            int patternDashCount = 0;
            while (null != (group = DxfGroup.readGroup(raf)) && !group.equals(ENDTAB)) {
                if (group.equals(LTYPE)) {
                    item = new DxfTABLE_LTYPE_ITEM("DEFAULT", 0);
                }
                else if (group.getCode()==2) {
                    item.setName(group.getValue());
                    table.put(item.getName(), item);
                }
                else if (group.getCode()==5) {}   // tag appeared in version 13 of DXF
                else if (group.getCode()==100) {} // tag appeared in version 13 of DXF
                else if (group.getCode()==70) {item.setFlags(group.getIntValue());}
                else if (group.getCode()==3) {item.setDescription(group.getValue());}
                else if (group.getCode()==72) {item.setAlignment(group.getIntValue());}
                else if (group.getCode()==73) {item.setPattern(new float[group.getIntValue()]);}
                else if (group.getCode()==40) {item.setPatternLength(group.getFloatValue());}
                else if (group.getCode()==49 && patternDashCount < item.getPattern().length) {
                    item.getPattern()[patternDashCount++] = group.getFloatValue();
                }
                else {}
            }
        } catch(IOException ioe) {throw ioe;}
        return table;
    }

    public String toString() {
        StringBuffer sb = new StringBuffer(super.toString());
        sb.append(DxfGroup.toString(3, description));
        sb.append(DxfGroup.toString(72, alignment));
        sb.append(DxfGroup.toString(73, pattern.length));
        sb.append(DxfGroup.toString(40, patternLength, 3));
        for (int i = 0 ; i < pattern.length ; i++) {
            sb.append(DxfGroup.toString(49, pattern[i], 3));
        }
        return sb.toString();
    }

}