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/****************************************************************************
** $Id: dl_attributes.h 2334 2005-03-27 23:37:52Z andrew $
**
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
** This file is part of the dxflib project.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid dxflib Professional Edition licenses may use 
** this file in accordance with the dxflib Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.ribbonsoft.com for further details.
**
** Contact info@ribbonsoft.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef DL_ATTRIBUTES_H
#define DL_ATTRIBUTES_H

#include <string>
using std::string;

#include "dl_codes.h"

/**
 * Storing and passing around attributes. Attributes
 * are the layer name, color, width and line type.
 *
 * @author Andrew Mustun
 */
class DL_Attributes {

public:

    /**
     * Default constructor.
     */
    DL_Attributes() {
        setLayer("");
        setColor(0);
        setWidth(0);
        setLineType("BYLAYER");
    }



    /**
     * Constructor for DXF attributes.
     *
     * @param layer Layer name for this entity or NULL for no layer
     *              (every entity should be on a named layer!).
     * @param color Color number (0..256). 0 = BYBLOCK, 256 = BYLAYER.
     * @param width Line thickness. Defaults to zero. -1 = BYLAYER, 
     *               -2 = BYBLOCK, -3 = default width
     * @param lineType Line type name or "BYLAYER" or "BYBLOCK". Defaults
     *              to "BYLAYER"
     */
    DL_Attributes(const string& layer,
                  int color, int width,
                  const string& lineType) {
        setLayer(layer);
        setColor(color);
        setWidth(width);
        setLineType(lineType);
    }



    /**
     * Sets the layer. If the given pointer points to NULL, the
     *  new layer name will be an empty but valid string.
     */
    void setLayer(const string& layer) {
        this->layer = layer;
    }



    /**
     * @return Layer name.
     */
    string getLayer() const {
        return layer;
    }



    /**
     * Sets the color.
     *
     * @see DL_Codes, dxfColors
     */
    void setColor(int color) {
        this->color = color;
    }



    /**
     * @return Color.
     *
     * @see DL_Codes, dxfColors
     */
    int getColor() const {
        return color;
    }



    /**
     * Sets the width.
     */
    void setWidth(int width) {
        this->width = width;
    }



    /**
     * @return Width.
     */
    int getWidth() const {
        return width;
    }



    /**
     * Sets the line type. This can be any string and is not
     *  checked to be a valid line type. 
     */
    void setLineType(const string& lineType) {
        this->lineType = lineType;
    }



    /**
     * @return Line type.
     */
    string getLineType() const {
        if (lineType.length()==0) {
            return "BYLAYER";
        } else {
            return lineType;
        }
    }



    /**
     * Copies attributes (deep copies) from another attribute object.
     */
    DL_Attributes operator = (const DL_Attributes& attrib) {
        setLayer(attrib.layer);
        setColor(attrib.color);
        setWidth(attrib.width);
        setLineType(attrib.lineType);

        return *this;
    }

private:
    string layer;
    int color;
    int width;
    string lineType;
};

#endif

// EOF