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## Label.js

#### Summary

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Class Summary
draw2d.Label |

    /* This notice must be untouched at all times.

    Open-jACOB Draw2D
    The latest version is available at
    http://www.openjacob.org

    Copyright (c) 2006 Andreas Herz. All rights reserved.
    Created 5. 11. 2006 by Andreas Herz (Web: http://www.freegroup.de )

    LICENSE: LGPL

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License (LGPL) as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA,
    or see http://www.gnu.org/copyleft/lesser.html
    */

    /**
     * @version 0.9.14
     * @author Andreas Herz
     * @param {String} msg The text of the label object
     * @constructor
     */
    draw2d.Label=function(/*:String*/ msg)
    {
      /** @private **/
      this.msg = msg;
      /** @private **/
      this.bgColor = null;
      /** @private **/
      this.color = new  draw2d.Color(0,0,0);
      /** @private **/
      this.fontSize= 10;
      /** @private **/
      this.textNode = null;
      /** @private **/
      this.align = "center";
      draw2d.Figure.call(this);
    }

    draw2d.Label.prototype = new draw2d.Figure;
    /** @private **/
    draw2d.Label.prototype.type="Label";

    /**
     * @private
     **/
    draw2d.Label.prototype.createHTMLElement=function()
    {
        var item = draw2d.Figure.prototype.createHTMLElement.call(this);
        this.textNode = document.createTextNode(this.msg);
        item.appendChild(this.textNode);
        item.style.color=this.color.getHTMLStyle();
        item.style.fontSize=this.fontSize+"pt";
        item.style.width="auto";
        item.style.height="auto";
    //    item.style.padding="2px";
        item.style.paddingLeft="3px";
        item.style.paddingRight="3px";
        item.style.textAlign=this.align;

        if(this.bgColor!=null)
          item.style.backgroundColor=this.bgColor.getHTMLStyle();
        return item;
    }

    /**
     * A Label is not resizeable. In this case this method returns always <b>false</b>.
     * @returns Returns always false in the case of a Label.
     * @type boolean
     **/
    draw2d.Label.prototype.isResizeable=function()
    {
      return false;
    }

    draw2d.Label.prototype.setWordwrap=function(/*:boolean*/ flag)
    {
      this.html.style.whiteSpace=flag?"wrap":"nowrap";
    }

    /**
     * @param {int} w The new width of the figure
     * @param {int} h The new height of the figure
     **/
    /*
    Label.prototype.setDimension=function( w, h)
    {
      // ignore: Das Label bestimmt seine Breite/Höhe selbst.
    }
    */

    /**
     *
     * @param {String} align The new align of the label ["left", "center", "right"]
     **/
    draw2d.Label.prototype.setAlign=function( /*:String*/ align)
    {
      this.align = align;
      this.html.style.textAlign=align;
    }

    /**
     * Set the new background color of the label.
     *
     * @param {draw2d.Color} color The new background color.
     **/
    draw2d.Label.prototype.setBackgroundColor= function(/*:draw2d.Color*/ color)
    {
      this.bgColor = color;
      if(this.bgColor!=null)
        this.html.style.backgroundColor=this.bgColor.getHTMLStyle();
      else
        this.html.style.backgroundColor="transparent";
    }

    /**
     * @param {draw2d.Color} color The new font color of the label.
     **/
    draw2d.Label.prototype.setColor= function(/*:draw2d.Color*/ color)
    {
      this.color = color;
      this.html.style.color = this.color.getHTMLStyle();
    }

    /**
     * Set the new font size in [pt].
     *
     * @param {int} size The new font size in <code>pt</code>
     **/
    draw2d.Label.prototype.setFontSize= function(/*:int*/ size)
    {
      this.fontSize = size;
      this.html.style.fontSize = this.fontSize+"pt";
    }

    /**
     * @returns the calculated width of the label
     * @type int
     **/
    draw2d.Label.prototype.getWidth=function()
    {
      if(window.getComputedStyle)
        return parseInt(getComputedStyle(this.html,'').getPropertyValue("width"));
      return parseInt(this.html.clientWidth);
    }

    /**
     * @returns the calculated height of the label
     * @type int
     **/
    draw2d.Label.prototype.getHeight=function()
    {
      if(window.getComputedStyle)
        return parseInt(getComputedStyle(this.html,'').getPropertyValue("height"));
      return parseInt(this.html.clientHeight);
    }

    /**
     * Returns the current text of the label.
     *
     * @returns the current display text of the label
     * @type String
     **/
    draw2d.Label.prototype.getText=function()
    {
      this.msg = text;
    }

    /**
     * @param {String} text The new text for the label.
     **/
    draw2d.Label.prototype.setText=function(/*:String*/ text )
    {
      this.msg = text;
      this.html.removeChild(this.textNode);
      this.textNode = document.createTextNode(this.msg);
      this.html.appendChild(this.textNode);
    }

    /**
     * @param {String} text The new HTML formated text for the label.
     **/
    draw2d.Label.prototype.setStyledText=function(/*:String*/ text)
    {
      this.msg = text;
      this.html.removeChild(this.textNode);
      this.textNode = document.createElement("div");
      this.textNode.style.whiteSpace="nowrap";
      this.textNode.innerHTML=text;
      this.html.appendChild(this.textNode);
    }

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Documentation generated by JSDoc on Thu Feb 7 23:45:47 2008