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/***********************************************************************************************
 * Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation ("Software"), with or
 * without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and notices.
 *   Redistributions must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 *   conditions and the following disclaimer in the documentation and/or other materials
 *   provided with the distribution.
 *
 * 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to endorse or promote
 *   products derived from this Software without prior written permission of Nathaniel G.
 *   Auvil.  For written permission, please contact nathaniel_auvil@users.sourceforge.net
 *
 * 4. Products derived from this Software may not be called "jCharts" nor may "jCharts" appear
 *   in their names without prior written permission of Nathaniel G. Auvil. jCharts is a
 *   registered trademark of Nathaniel G. Auvil.
 *
 * 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
 *
 * THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
 ************************************************************************************************/

package org.krysalis.jcharts.chartText;


import org.krysalis.jcharts.properties.util.ChartFont;
import org.krysalis.jcharts.test.HTMLGenerator;
import org.krysalis.jcharts.test.HTMLTestable;

import java.awt.*;
import java.awt.font.FontRenderContext;
import java.io.Serializable;
import java.lang.reflect.Field;
import java.util.ArrayList;


/*************************************************************************************
 *
 * @author Nathaniel Auvil
 * @version $Id: TextTagGroup.java,v 1.1 2003/05/17 16:58:32 nathaniel_auvil Exp $
 ************************************************************************************/
public class TextTagGroup implements HTMLTestable, Serializable
{
  private float widestLabel = 0.0f;
  private float tallestLabel = 0.0f;
  private float totalLabelWidths = 0.0f;

  private ArrayList textTags;

  private ChartFont chartFont;
  private FontRenderContext fontRenderContext;


  //---Strangely, we don't need to store the text itself. (yet)

//  private ArrayList group;
//  private Font baseFont;
//  private Font derivedFont;
//  private Paint fontColor;

//  private float tallestTextTag = 0.0f;
//  private float widestTextTag = 0.0f;
//  private boolean computedTallestAndWidest = false;


  /******************************************************************************************
   * Constructor
   *
   * @param chartFont
   * @param fontRenderContext
   *******************************************************************************************/
  public TextTagGroup( ChartFont chartFont, FontRenderContext fontRenderContext )
  {
    this.textTags = new ArrayList( 30 );

    this.chartFont = chartFont;
    this.fontRenderContext = fontRenderContext;
  }


  /******************************************************************************************
   *
   * @param label
   *******************************************************************************************/
  public void addLabel( String label )
  {
    TextTag textTag = new TextTag( label, this.chartFont.getFont(), this.fontRenderContext );
    this.textTags.add( textTag );

    this.widestLabel = Math.max( textTag.getWidth(), this.widestLabel );
    this.totalLabelWidths += textTag.getWidth();

    this.tallestLabel = Math.max( textTag.getHeight(), this.tallestLabel );
  }


  /******************************************************************************************
   * Returns the number of labels
   *
   * @return int
   ******************************************************************************************/
  public int size()
  {
    return this.textTags.size();
  }


  /*******************************************************************************************
   * Horizontal plots render the data from top down so rendering alogorithm needs to get the
   *   labels in reverse order to make things easier.
   *
   *******************************************************************************************/
  public void reverse()
  {
    ArrayList reverse = new ArrayList( this.textTags.size() );
    for( int i = this.textTags.size() - 1; i >= 0; i-- )
    {
      reverse.add( this.textTags.get( i ) );
    }

    this.textTags = reverse;
  }


  /******************************************************************************************
   * Calculates the width and height needed by the passed String when rendered
   *
   //   * @param iDataSeries
   /   * @param font
   //   * @param fontRenderContext
   *******************************************************************************************
   public void processLabels( IDataSeries iDataSeries)  {
   //LOOP
   for( int i = 0; i < iDataSeries.getNumberOfXAxisLabels(); i++ )
   {
   this.axisLabelProcessor.processLabel( iDataSeries.getXAxisLabel( i ), axisLabelFont, fontRenderContext );
   }


   TextLayout textLayout = new TextLayout( label, font, fontRenderContext );

   //---WIDTH
   this.labelWidths[ counter ] = textLayout.getAdvance();
   this.widestLabel = Math.max( this.labelWidths[ counter ], this.widestLabel );
   this.totalLabelWidths += this.labelWidths[ counter ];

   //---HEIGHT
   this.labelHeights[ counter ] = textLayout.getAscent() + textLayout.getDescent();
   this.tallestLabel = Math.max( this.labelHeights[ counter ], this.tallestLabel );

   //---need this to offset font rendering, as rendering is at the baseline not bottom or top,
   this.fontDescent = textLayout.getDescent();

   this.counter++;
   }


   /******************************************************************************************
   *
   *
   ******************************************************************************************/
  public float getWidestLabel()
  {
    return this.widestLabel;
  }


  /******************************************************************************************
   *
   *
   ******************************************************************************************/
  public float getTallestLabel()
  {
    return this.tallestLabel;
  }


  /******************************************************************************************
   *
   *
   ******************************************************************************************/
  public float getTotalLabelWidths()
  {
    return this.totalLabelWidths;
  }


  /******************************************************************************************
   *
   * @param index
   * @return TextTag
   ******************************************************************************************/
  public TextTag getTextTag( int index )
  {
    return (TextTag) this.textTags.get( index );
  }


  /**********************************************************************************************
   * Renders the text, at the position - renders from the top (instead of baseline)
   *
   * @param index
   * @param g2d
   * @param x
   * @param y
   **********************************************************************************************/
  public void render( int index, Graphics2D g2d, float x, float y )
  {
    this.chartFont.setupGraphics2D( g2d );
    this.getTextTag( index ).render( g2d, x, y );
  }


  /**********************************************************************************************
   * Renders all the text in this group.
   *
   *
   **********************************************************************************************
   public void renderTag( int index, Graphics2D g2d )
   {
   TextTag tag;
   //Paint p = this.fontColor;

   g2d.setPaint( this. );

   //g2d.setFont( (this.derivedFont == null) ? baseFont : derivedFont );

   for( int i = 0; i < group.size(); i++ )
   {
   tag = ( TextTag ) group.get( i );
   tag.render( g2d, p );
   // Text tag sets the Paint every time if not null
   // So, we might save a small bit of time by changing
   // this to null after first time.
   p = null;
   }
   }


   /*********************************************************************************************
   * Enables the testing routines to display the contents of this Object.
   *
   * @param htmlGenerator
   **********************************************************************************************/
  public void toHTML( HTMLGenerator htmlGenerator )
  {
    htmlGenerator.propertiesTableStart( this.getClass().getName() );

    Field[] fields = this.getClass().getDeclaredFields();
    for( int i = 0; i < fields.length; i++ )
    {
      try
      {
        htmlGenerator.addField( fields[ i ].getName(), fields[ i ].get( this ) );
      }
      catch( IllegalAccessException illegalAccessException )
      {
        illegalAccessException.printStackTrace();
      }
    }

    htmlGenerator.propertiesTableEnd();
  }

}
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