/*
* 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 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.output.table.html.helper;
import java.io.IOException;
import java.io.Writer;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Locale;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
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.HtmlPrinter;
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.LinkedMap;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.base.util.StringBufferWriter;
import org.pentaho.reporting.libraries.base.util.StringUtils;
public final class StyleBuilder
{
public static class StyleCarrier
{
private String key;
private String value;
private String unit;
protected StyleCarrier(final String key, final String value, final String unit)
{
if (key == null)
{
throw new NullPointerException();
}
this.key = key;
this.value = value;
this.unit = unit;
}
public String getUnit()
{
return unit;
}
public String getKey()
{
return key;
}
public String getValue()
{
return value;
}
public boolean equals(final Object o)
{
if (this == o)
{
return true;
}
if (o == null || getClass() != o.getClass())
{
return false;
}
final StyleCarrier that = (StyleCarrier) o;
if (!key.equals(that.key))
{
return false;
}
if (ObjectUtilities.equal(value, that.value) == false)
{
return false;
}
if (ObjectUtilities.equal(unit, that.unit) == false)
{
return false;
}
return true;
}
public int hashCode()
{
int result;
result = key.hashCode();
result = 31 * result + (value != null ? value.hashCode() : 0);
result = 31 * result + (unit != null ? unit.hashCode() : 0);
return result;
}
public String toString()
{
return "org.pentaho.reporting.engine.classic.core.modules.output.table.html.helper.StyleBuilder.StyleCarrier{" +
"key='" + key + '\'' +
", value='" + value + '\'' +
", unit='" + unit + '\'' +
'}';
}
}
public static final String INDENT = " ";
private LinkedMap styles;
private LFUMap cachedBorderStyle;
private String lineSeparator;
private StringBuffer buffer;
private NumberFormat pointConverter;
private boolean safariLengthFix;
public StyleBuilder()
{
this.lineSeparator = StringUtils.getLineSeparator();
this.styles = new LinkedMap(1024, 0.75f);
this.cachedBorderStyle = new LFUMap(30);
this.buffer = new StringBuffer(100);
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));
safariLengthFix = true;
}
else
{
safariLengthFix = false;
pointConverter = new DecimalFormat("0.####", new DecimalFormatSymbols(Locale.US));
}
}
public void clear()
{
this.styles.clear();
}
public void append(final String key, final String value)
{
final StyleCarrier newCarrier = new StyleCarrier(key, HtmlEncoderUtil.encodeCSS(value), null);
styles.put(key, newCarrier);
}
public void appendRaw(final String key, final String value)
{
final StyleCarrier newCarrier = new StyleCarrier(key, value, null);
styles.put(key, newCarrier);
}
public void append(final String key, final String value, final String unit)
{
final StyleCarrier newCarrier = new StyleCarrier(key, HtmlEncoderUtil.encodeCSS(value), unit);
styles.put(key, 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 String key, final String value, final boolean replace)
{
if (replace == false)
{
final Object stylePos = styles.get(key);
if (stylePos != null)
{
return;
}
}
final StyleCarrier newCarrier = new StyleCarrier(key, HtmlEncoderUtil.encodeCSS(value), null);
styles.put(key, 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 String key, final String value, final String unit, final boolean replace)
{
if (replace == false)
{
final Object stylePos = styles.get(key);
if (stylePos != null)
{
return;
}
}
final StyleCarrier newCarrier = new StyleCarrier(key, HtmlEncoderUtil.encodeCSS(value), unit);
styles.put(key, newCarrier);
}
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 ...
final Object[] values = styles.values();
boolean first = true;
for (int i = 0; i < values.length; i++)
{
if (first == false)
{
writer.write("; ");
}
final StyleCarrier sc = (StyleCarrier) values[i];
if (compact == false)
{
if (first == false)
{
writer.write(lineSeparator);
}
writer.write(StyleBuilder.INDENT);
}
writer.write(sc.getKey());
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 Object cached = cachedBorderStyle.get(edge);
if (cached != null)
{
return cached.toString();
}
final String value =
(pointConverter.format(HtmlPrinter.fixLengthForSafari(StrictGeomUtility.toExternalValue(width),
safariLengthFix)) +
"pt " + borderStyle.toString() + ' ' + HtmlColors.getColorString(edge.getColor()));
cachedBorderStyle.put(edge, value);
return value;
}
public NumberFormat getPointConverter()
{
return pointConverter;
}
/**
* @return the style carriers as array.
*/
public StyleCarrier[] toArray()
{
final StyleCarrier[] data = new StyleCarrier[styles.size()];
return (StyleCarrier[]) styles.values(data);
}
}