/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.output.table.html.helper;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
import org.pentaho.reporting.engine.classic.core.layout.model.BorderCorner;
import org.pentaho.reporting.engine.classic.core.layout.model.BorderEdge;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.util.HtmlColors;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.util.HtmlEncoderUtil;
import org.pentaho.reporting.engine.classic.core.style.BorderStyle;
import org.pentaho.reporting.engine.classic.core.util.geom.StrictGeomUtility;
import org.pentaho.reporting.libraries.base.util.LFUMap;
import org.pentaho.reporting.libraries.base.util.StringBufferWriter;
import org.pentaho.reporting.libraries.base.util.StringUtils;
import java.io.IOException;
import java.io.Writer;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Arrays;
import java.util.Locale;
public final class DefaultStyleBuilder implements StyleBuilder {
public static final String INDENT = " ";
private LFUMap<BorderEdge, String> cachedBorderStyle;
private LFUMap<BorderCorner, String> cachedCornerStyle;
private String lineSeparator;
private StringBuffer buffer;
private StyleCarrier[] usedStyles;
private NumberFormat pointConverter;
private StyleBuilderFactory factory;
public DefaultStyleBuilder( final StyleBuilderFactory factory ) {
this.factory = factory;
this.lineSeparator = StringUtils.getLineSeparator();
this.cachedBorderStyle = new LFUMap<BorderEdge, String>( 30 );
this.cachedCornerStyle = new LFUMap<BorderCorner, String>( 30 );
this.buffer = new StringBuffer( 100 );
this.usedStyles = new StyleCarrier[CSSKeys.values().length];
if ( "true".equals( ClassicEngineBoot.getInstance().getGlobalConfig().getConfigProperty(
"org.pentaho.reporting.engine.classic.core.modules.output.table.html.SafariLengthHack" ) ) ) {
pointConverter = new DecimalFormat( "0", new DecimalFormatSymbols( Locale.US ) );
} else {
pointConverter = new DecimalFormat( "0.####", new DecimalFormatSymbols( Locale.US ) );
}
}
public void clear() {
Arrays.fill( usedStyles, null );
}
public void append( final CSSKeys key, final String value ) {
final StyleCarrier newCarrier = new StyleCarrier( key, HtmlEncoderUtil.encodeCSS( value, prepareBuffer() ), null );
usedStyles[key.ordinal()] = newCarrier;
}
public void appendRaw( final CSSKeys key, final String value ) {
final StyleCarrier newCarrier = new StyleCarrier( key, value, null );
usedStyles[key.ordinal()] = newCarrier;
}
public void append( final CSSKeys key, final String value, final String unit ) {
final StyleCarrier newCarrier = new StyleCarrier( key, HtmlEncoderUtil.encodeCSS( value, prepareBuffer() ), unit );
usedStyles[key.ordinal()] = newCarrier;
}
/**
* Appends the style to the list. If the replace value is <code>false</code> and the list already contains the key, it
* will not be replaced.
*/
public void append( final CSSKeys key, final String value, final boolean replace ) {
if ( replace == false ) {
final Object stylePos = usedStyles[key.ordinal()];
if ( stylePos != null ) {
return;
}
}
final StyleCarrier newCarrier = new StyleCarrier( key, HtmlEncoderUtil.encodeCSS( value, prepareBuffer() ), null );
usedStyles[key.ordinal()] = newCarrier;
}
/**
* Appends the style to the list. If the replace value if <code>false</code> and the list already contains the key, it
* will not be replaced.
*/
public void append( final CSSKeys key, final String value, final String unit, final boolean replace ) {
if ( replace == false ) {
final Object stylePos = usedStyles[key.ordinal()];
if ( stylePos != null ) {
return;
}
}
final StyleCarrier newCarrier = new StyleCarrier( key, HtmlEncoderUtil.encodeCSS( value, prepareBuffer() ), unit );
usedStyles[key.ordinal()] = newCarrier;
}
private StringBuffer prepareBuffer() {
buffer.delete( 0, buffer.length() );
return buffer;
}
public String toString() {
return toString( true );
}
public void print( final Writer writer, final boolean compact ) throws IOException {
// we are usign a linked list now, so a iterator is more efficient than a for loop ...
boolean first = true;
for ( final StyleCarrier sc : usedStyles ) {
if ( sc == null ) {
continue;
}
if ( first == false ) {
writer.write( "; " );
}
if ( compact == false ) {
if ( first == false ) {
writer.write( lineSeparator );
}
writer.write( DefaultStyleBuilder.INDENT );
}
writer.write( sc.getKey().getCssName() );
writer.write( ": " );
writer.write( sc.getValue() );
final String unit = sc.getUnit();
if ( unit != null ) {
writer.write( unit );
}
first = false;
}
}
public String toString( final boolean compact ) {
buffer.delete( 0, buffer.length() );
final StringBufferWriter writer = new StringBufferWriter( buffer );
try {
print( writer, compact );
} catch ( IOException e ) {
// will not happen ..
throw new IllegalStateException( "How can a fully buffered writer cause a IO exception?" );
}
return buffer.toString();
}
public String printEdgeAsCSS( final BorderEdge edge ) {
final BorderStyle borderStyle = edge.getBorderStyle();
final long width = edge.getWidth();
if ( BorderStyle.NONE.equals( borderStyle ) || width <= 0 ) {
return "none";
}
final String cached = cachedBorderStyle.get( edge );
if ( cached != null ) {
return cached;
}
final String value =
pointConverter.format( factory.fixLengthForSafari( StrictGeomUtility.toExternalValue( width ) ) ) + "pt "
+ borderStyle.toString() + ' ' + HtmlColors.getColorString( edge.getColor() );
cachedBorderStyle.put( edge, value );
return value;
}
public String printCornerAsCSS( final BorderCorner edge ) {
final String cached = cachedCornerStyle.get( edge );
if ( cached != null ) {
return cached;
}
final String value =
( pointConverter.format( factory.fixLengthForSafari( StrictGeomUtility.toExternalValue( edge.getWidth() ) ) )
+ "pt "
+ pointConverter
.format( factory.fixLengthForSafari( StrictGeomUtility.toExternalValue( edge.getHeight() ) ) ) + "pt " );
cachedCornerStyle.put( edge, value );
return value;
}
public NumberFormat getPointConverter() {
return pointConverter;
}
/**
* @return the style carriers as array.
*/
public StyleCarrier[] toArray() {
return usedStyles.clone();
}
public boolean isEmpty() {
for ( final StyleCarrier sc : usedStyles ) {
if ( sc != null ) {
return false;
}
}
return true;
}
}