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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.components.headertoolbar.actions;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import net.sf.jasperreports.components.table.BaseColumn;
import net.sf.jasperreports.components.table.ColumnGroup;
import net.sf.jasperreports.components.table.GroupCell;
import net.sf.jasperreports.components.table.StandardBaseColumn;
import net.sf.jasperreports.components.table.StandardColumn;
import net.sf.jasperreports.components.table.StandardTable;
import net.sf.jasperreports.components.table.util.TableUtil;
import net.sf.jasperreports.engine.JRChild;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRElementGroup;
import net.sf.jasperreports.engine.JRFrame;
import net.sf.jasperreports.engine.base.JRBaseElement;
import net.sf.jasperreports.web.commands.Command;
import net.sf.jasperreports.web.commands.CommandException;
import net.sf.jasperreports.web.commands.CommandStack;
/**
* @author Narcis Marcu ([email protected])
*/
public class ResizeColumnCommand implements Command
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
private StandardTable table;
private ResizeColumnData resizeColumnData;
private CommandStack individualResizeCommandStack;
public ResizeColumnCommand(StandardTable table, ResizeColumnData resizeColumnData)
{
this.table = table;
this.resizeColumnData = resizeColumnData;
this.individualResizeCommandStack = new CommandStack();
}
@Override
public void execute() throws CommandException
{
List tableColumns = TableUtil.getAllColumns(table);
int modIndex = resizeColumnData.getColumnIndex();
StandardColumn modColumn = (StandardColumn) tableColumns.get(modIndex);
int deltaWidth = resizeColumnData.getWidth() - modColumn.getWidth();
int startX = 0;
List allColumns = TableUtil.getAllColumns(table);
if (allColumns != null)
{
for (int i = 0; i <= modIndex; i++)
{
startX += allColumns.get(i).getWidth();
}
}
List parentColumnGroups = new ColumnUtil(resizeColumnData.getColumnIndex()).getParentColumnGroups(table.getColumns());
for(ColumnGroupInfo colGroupInfo : parentColumnGroups)
{
if (
colGroupInfo.x <= startX
&& startX <= colGroupInfo.x + colGroupInfo.columnGroup.getWidth()
)
{
resizeColumn(colGroupInfo.columnGroup, startX - colGroupInfo.x, deltaWidth);
}
}
resizeColumn(modColumn, modColumn.getWidth(), deltaWidth);
}
private void resizeColumn(BaseColumn column, int startX, int amount) throws CommandException
{
if (amount < -startX)
{
amount = -startX;
}
StandardBaseColumn standardBaseColumn = column instanceof StandardBaseColumn ? (StandardBaseColumn)column : null;
if (standardBaseColumn != null)
{
individualResizeCommandStack.execute(new SimpleResizeColumnCommand(standardBaseColumn, standardBaseColumn.getWidth() + amount));
//standardBaseColumn.setWidth(standardBaseColumn.getWidth() + amount);
}
StandardColumn standardColumn = column instanceof StandardColumn ? (StandardColumn)column : null;
if (standardColumn != null)
{
resizeChildren(standardColumn.getDetailCell(), startX, amount);
}
resizeChildren(column.getTableHeader(), startX, amount);
resizeChildren(column.getColumnHeader(), startX, amount);
resizeChildren(column.getColumnFooter(), startX, amount);
resizeChildren(column.getTableFooter(), startX, amount);
for (GroupCell header: column.getGroupHeaders()) {
resizeChildren(header.getCell(), startX, amount);
}
for (GroupCell footer: column.getGroupFooters()) {
resizeChildren(footer.getCell(), startX, amount);
}
}
private void resizeChildren(JRElementGroup elementGroup, int startX, int amount) throws CommandException
{
if (elementGroup != null && startX >= 0)
{
for (JRChild child: elementGroup.getChildren())
{
int childStartX = startX;
int childAmount = amount;
if (child instanceof JRFrame)
{
childStartX = startX - ((JRFrame)child).getX();
}
if (child instanceof JRBaseElement)
{
JRBaseElement be = (JRBaseElement) child;
int resizeAmount = 0;
int moveAmount = 0;
if (startX <= be.getX())
{
resizeAmount = 0;
moveAmount = amount;
}
else if (startX <= be.getX() + be.getWidth())
{
if (amount < be.getX() - startX)
{
resizeAmount = be.getX() - startX;
moveAmount = amount - resizeAmount;
}
else
{
resizeAmount = amount;
moveAmount = amount - resizeAmount;//0
}
}
else
{
if (startX + amount < be.getX() + be.getWidth())
{
if (startX + amount > be.getX())
{
resizeAmount = amount + (startX - (be.getX() + be.getWidth()));
moveAmount = 0;
}
else
{
resizeAmount = - be.getWidth();
moveAmount = startX + amount - be.getX();
}
}
else
{
resizeAmount = 0;
moveAmount = 0;
}
}
if (resizeAmount != 0)
{
individualResizeCommandStack.execute(new ResizeElementCommand(be, be.getWidth() + resizeAmount));
}
if (moveAmount != 0)
{
moveAmount = be.getX() + moveAmount < 0 ? -be.getX() : moveAmount;
individualResizeCommandStack.execute(new MoveElementCommand(be, be.getX() + moveAmount));
}
childAmount = resizeAmount;
}
if (child instanceof JRElementGroup)
{
JRElementGroup eg = (JRElementGroup) child;
resizeChildren(eg, childStartX, childAmount);
}
}
}
}
@Override
public void undo()
{
individualResizeCommandStack.undoAll();
}
@Override
public void redo()
{
individualResizeCommandStack.redoAll();
}
static public class ColumnUtil
{
private boolean found = false;
private int colIndex;
private int crtColIndex;
private int crtColX;
private List parentColumnGroups = new ArrayList();
ColumnUtil(int colIndex)
{
this.colIndex = colIndex;
}
public List getParentColumnGroups(List columns)
{
Iterator it = columns.iterator();
while(!found && it.hasNext())
{
BaseColumn column = it.next();
if (column instanceof ColumnGroup)
{
ColumnGroupInfo colGroupInfo = new ColumnGroupInfo();
colGroupInfo.x = crtColX;
colGroupInfo.colIndex = crtColIndex;
colGroupInfo.columnGroup = (ColumnGroup)column;
parentColumnGroups.add(colGroupInfo);
getParentColumnGroups(((ColumnGroup)column).getColumns());
if (!found)
{
parentColumnGroups.remove(parentColumnGroups.size() - 1);
}
}
else
{
if (colIndex == crtColIndex)
{
found = true;
return parentColumnGroups;
}
crtColIndex++;
crtColX += column.getWidth();
}
}
return parentColumnGroups;
}
}
static public class ColumnGroupInfo
{
public int x;
public int colIndex;
public ColumnGroup columnGroup;
}
}