/***********************************************************************************************
* 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 com.google.code.appengine.awt.*;
import com.google.code.appengine.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();
}
}