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/**
* Copyright (C) 2011-2015 The XDocReport Team
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fr.opensagres.poi.xwpf.converter.core.utils;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBorder;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTColor;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTParaRPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRPr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTShd;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STHexColor;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.STShd;
import org.w3c.dom.Attr;
import org.w3c.dom.Node;
import fr.opensagres.poi.xwpf.converter.core.Color;
import fr.opensagres.poi.xwpf.converter.core.registry.ColorRegistry;
public class ColorHelper
{
private static final String AUTO = "auto";
private static final String PCT = "pct";
public static Color getFillColor( CTShd shd )
{
if ( shd == null )
{
return null;
}
STHexColor hexColor = shd.xgetFill();
Object val = shd.xgetVal();
return getColor( hexColor, val, true );
}
public static Color getColor( CTRPr rPr )
{
if ( rPr != null )
{
CTColor ctColor = rPr.getColor();
if ( ctColor != null )
{
STHexColor color = ctColor.xgetVal();
Object val = ctColor.getVal();
return ColorHelper.getColor( color, val, false );
}
// else
// {
// return ColorHelper.getColor( rPr.getShd() );
// }
}
return null;
}
public static Color getColor( CTParaRPr rPr )
{
if ( rPr != null )
{
CTColor ctColor = rPr.getColor();
if ( ctColor != null )
{
STHexColor color = ctColor.xgetVal();
Object val = ctColor.getVal();
return ColorHelper.getColor( color, val, false );
}
}
return null;
}
public static Color getColor( CTShd shd )
{
if ( shd == null )
{
return null;
}
STHexColor hexColor = shd.xgetColor();
Object val = shd.xgetVal();
return getColor( hexColor, val, false );
}
public static Color getColor( STHexColor hexColor, Object val, boolean background )
{
if ( hexColor == null )
{
return null;
}
return getColor( hexColor.getStringValue(), val, background );
}
public static Color getColor( String hexColor, Object val, boolean background )
{
if ( hexColor != null && !"".equals(hexColor) )
{
if ( AUTO.equals( hexColor ) )
{
Color autoColor = background ? Color.WHITE : Color.BLACK;
if ( val != null )
{
String s = getStringVal( val );
if ( s.startsWith( PCT ) )
{
s = s.substring( PCT.length(), s.length() );
try
{
float percent = Float.parseFloat( s ) / 100;
if ( background )
{
return darken( autoColor.getRed(), autoColor.getGreen(), autoColor.getBlue(), percent );
}
return lighten( autoColor.getRed(), autoColor.getGreen(), autoColor.getBlue(), percent );
}
catch ( Throwable e )
{
e.printStackTrace();
}
}
}
return autoColor;
}
return ColorRegistry.getInstance().getColor( "0x" + hexColor );
}
return null;
}
private static String getStringVal( Object val )
{
if ( val instanceof STShd )
{
STShd shd = (STShd) val;
return shd.getStringValue();
}
return val.toString();
}
public static String toHexString( Color color )
{
String hexaWith8Digits = Integer.toHexString( color.getRGB() );
return new StringBuilder( "#" ).append( hexaWith8Digits.substring( 2, hexaWith8Digits.length() ) ).toString();
}
public static Color darken( int r, int g, int b, double percent )
throws IllegalArgumentException
{
return new Color( Math.max( (int) ( r * ( 1 - percent ) ), 0 ), Math.max( (int) ( g * ( 1 - percent ) ), 0 ),
Math.max( (int) ( b * ( 1 - percent ) ), 0 ) );
}
public static Color lighten( int r, int g, int b, double percent )
throws IllegalArgumentException
{
int r2, g2, b2;
r2 = r + (int) ( ( 255 - r ) * percent );
g2 = g + (int) ( ( 255 - g ) * percent );
b2 = b + (int) ( ( 255 - b ) * percent );
return new Color( r2, g2, b2 );
}
public static Color getBorderColor( CTBorder border )
{
if ( border == null )
{
return null;
}
// border.getColor returns object???, use attribute w:color to get
// the color.
Node colorAttr =
border.getDomNode().getAttributes().getNamedItemNS( "http://schemas.openxmlformats.org/wordprocessingml/2006/main",
"color" );
if ( colorAttr != null )
{
Object val = border.getVal();
return ColorHelper.getColor( ( (Attr) colorAttr ).getValue(), val, false );
}
return null;
}
}
