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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.util;
import java.util.ArrayList;
import java.util.List;
import net.sf.jasperreports.engine.JRParagraph;
import net.sf.jasperreports.engine.TabStop;
import net.sf.jasperreports.engine.type.TabStopAlignEnum;
/**
* @author Teodor Danciu ([email protected])
*/
public final class ParagraphUtil
{
/**
*
*/
public static TabStop[] getTabStops(JRParagraph paragraph, float endX)
{
List tabStopList = new ArrayList();
TabStop lastTabStop = new TabStop();
TabStop[] tabStops = paragraph.getTabStops();
if (tabStops != null && tabStops.length > 0)
{
for (int i = 0; i < tabStops.length; i++)
{
lastTabStop = tabStops[i];
if (
//startX <= lastTabStop.getPosition() &&
lastTabStop.getPosition() <= endX
)
{
tabStopList.add(lastTabStop);
}
}
}
while (
//startX <= lastTabStop.getPosition() + paragraph.getTabStopWidth() &&
lastTabStop.getPosition() + paragraph.getTabStopWidth() <= endX
)
{
lastTabStop = new TabStop((lastTabStop.getPosition() / paragraph.getTabStopWidth() + 1) * paragraph.getTabStopWidth(), TabStopAlignEnum.LEFT);
tabStopList.add(lastTabStop);
}
return tabStopList.toArray(new TabStop[tabStopList.size()]);
}
/**
*
*/
public static float getRightX(TabStop tabStop, float advance)
{
float rightX = advance;
if (tabStop != null)
{
switch (tabStop.getAlignment())
{
case RIGHT ://FIXMETAB RTL writings
{
rightX = tabStop.getPosition();
break;
}
case CENTER :
{
rightX = tabStop.getPosition() + advance / 2;
break;
}
case LEFT :
default :
{
rightX = tabStop.getPosition() + advance;
}
}
}
return rightX;
}
/**
*
*/
public static float getLeftX(TabStop tabStop, float advance)
{
float leftX = 0;
if (tabStop != null)
{
switch (tabStop.getAlignment())
{
case RIGHT ://FIXMETAB RTL writings
{
leftX = tabStop.getPosition() - advance;
break;
}
case CENTER :
{
leftX = tabStop.getPosition() - advance / 2;
break;
}
case LEFT :
default :
{
leftX = tabStop.getPosition();
}
}
}
return leftX;
}
/**
*
*/
public static float getSegmentOffset(TabStop tabStop, float rightX)
{
float segmentOffset = rightX;
if (tabStop != null)
{
switch (tabStop.getAlignment())
{
case RIGHT ://FIXMETAB RTL writings
{
segmentOffset = rightX;
break;
}
case CENTER :
{
segmentOffset = rightX;
break;
}
case LEFT :
default :
{
segmentOffset = tabStop.getPosition();
}
}
}
return segmentOffset;
}
/**
*
*/
public static TabStop getNextTabStop(JRParagraph paragraph, float endX, float rightX)
{
TabStop nextTabStop = null;
TabStop[] tabStops = getTabStops(paragraph, endX);
int i = 0;
for (; i < tabStops.length; i++)
{
TabStop tabStop = tabStops[i];
if (tabStop.getPosition() > rightX)//FIXMETAB assumes tab stops are sorted by position
{
nextTabStop = tabStop;
break;
}
}
if (i == tabStops.length)
{
//FIXMETAB what to do here?
nextTabStop = new TabStop();
nextTabStop.setPosition((int)((rightX / paragraph.getTabStopWidth() + 1) * paragraph.getTabStopWidth()));
}
return nextTabStop;
}
/**
*
*/
public static TabStop getFirstTabStop(JRParagraph paragraph, float endX)
{
TabStop firstTabStop = null;
TabStop[] tabStops = getTabStops(paragraph, endX);
if (tabStops.length > 0)
{
firstTabStop = tabStops[0];
}
else
{
//FIXMETAB what to do here?
firstTabStop = new TabStop();
firstTabStop.setPosition((int)endX);
}
return firstTabStop;
}
/**
*
*/
public static TabStop getLastTabStop(JRParagraph paragraph, float endX)
{
TabStop lastTabStop = null;
TabStop[] tabStops = getTabStops(paragraph, endX);
int i = tabStops.length - 1;
for (; i >= 0; i--)
{
TabStop tabStop = tabStops[i];
if (tabStop.getPosition() < endX)//FIXMETAB assumes tab stops are sorted by position
{
lastTabStop = tabStop;
break;
}
}
if (i < 0)
{
//FIXMETAB what to do here?
lastTabStop = new TabStop();
lastTabStop.setPosition((int)endX);
}
return lastTabStop;
}
private ParagraphUtil()
{
}
}