/*
* $Id: IncTable.java 4286 2010-01-31 10:09:17Z psoares33 $
*
* This file is part of the iText project.
* Copyright (c) 1998-2009 1T3XT BVBA
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
* 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* 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 Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* you must retain the producer line in every PDF that is created or manipulated
* using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: sales@itextpdf.com
*/
package com.itextpdf.text.html.simpleparser;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.ElementListener;
import com.itextpdf.text.ElementTags;
import com.itextpdf.text.html.Markup;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
/**
*
* @author psoares
*/
public class IncTable implements Element {
private static float NO_WIDTH = -1;
private HashMap<String, String> props = new HashMap<String, String>();
private ArrayList<ArrayList<PdfPCell>> rows = new ArrayList<ArrayList<PdfPCell>>();
private ArrayList<PdfPCell> cols;
private ArrayList<Float> fixedCellWidths;
/** Creates a new instance of IncTable */
public IncTable(HashMap<String, String> props) {
this.props.putAll(props);
}
public void addCol(PdfPCell cell) {
if (cols == null)
cols = new ArrayList<PdfPCell>();
cols.add(cell);
}
public void addCols(ArrayList<PdfPCell> ncols) {
if (cols == null)
cols = new ArrayList<PdfPCell>(ncols);
else
cols.addAll(ncols);
}
public void addFixedCellWidths(ArrayList<Float> widths) {
// If one of the previous row already defined valid cell widths we will use that
if(isValidWidths(widths) && (this.fixedCellWidths == null)) {
// Columns are processed in the reverse order due to stack usage
Collections.reverse(widths);
this.fixedCellWidths = widths;
}
}
public void endRow() {
if (cols != null) {
Collections.reverse(cols);
rows.add(cols);
cols = null;
}
}
public ArrayList<ArrayList<PdfPCell>> getRows() {
return rows;
}
public PdfPTable buildTable() {
if (rows.isEmpty())
return new PdfPTable(1);
int ncol = 0;
for (PdfPCell pc : rows.get(0)) {
ncol += pc.getColspan();
}
PdfPTable table = new PdfPTable(ncol);
String width = props.get("width");
if (width == null) {
table.setWidthPercentage(100);
if(fixedCellWidths != null) {
try {
table.setWidths(convertNullWidthToDefault(fixedCellWidths));
} catch (DocumentException e) {
}
}
}
else {
if (width.endsWith("%")) {
table.setWidthPercentage(Float.parseFloat(width.substring(0, width.length() - 1)));
}
else {
float tableWidth = Float.parseFloat(width);
table.setTotalWidth(tableWidth);
if(fixedCellWidths != null) {
try {
table.setWidths(getColumnWidths(tableWidth, fixedCellWidths));
} catch (DocumentException e) {
}
}
table.setLockedWidth(true);
}
}
// Support for horizontal alignment of tables via HTML conversion
String alignment = props.get("align");
int align = Element.ALIGN_LEFT;
if (alignment != null) {
align = ElementTags.alignmentValue(alignment);
}
table.setHorizontalAlignment(align);
for (ArrayList<PdfPCell> col : rows) {
for (PdfPCell pc : col) {
table.addCell(pc);
}
}
return table;
}
/**
* If at least one column has width, then it is a valid one
* @param widths
* @return
*/
private static boolean isValidWidths(ArrayList<Float> widths) {
for(Float width : widths) {
if(width != null) {
return true;
}
}
return false;
}
private static float[] convertNullWidthToDefault(ArrayList<Float> widths) {
float[] relativeWidths = new float[widths.size()];
for(int i=0; i<relativeWidths.length; i++) {
Float columnWidth = widths.get(i);
if(columnWidth != null) {
relativeWidths[i] = columnWidth;
}
else {
relativeWidths[i] = NO_WIDTH;
}
}
return relativeWidths;
}
/**
* Determines each cell width based on given width properties
* and evenly distrubutes remaining width
* between those cells that did not set certain width
*
* @param tableWidth
* @param fixedCellWidths
* @return each cell width to fit the given tableWidth
*/
private static float[] getColumnWidths(float tableWidth, ArrayList<Float> fixedCellWidths) {
float[] widths = convertNullWidthToDefault(fixedCellWidths);
return getColumnWidths(tableWidth, widths);
}
/**
* Determines each cell width based on given width properties
* and evenly distrubutes remaining width
* between those cells that did not set certain width
*
* @param tableWidth
* @param cellWidths
* @return each cell width to fit the given tableWidth
*/
public static float[] getColumnWidths(float tableWidth, float[] cellWidths) {
int noWidthColumnCounter = 0;
float usedWidth = 0f;
for(int i=0; i<cellWidths.length; i++) {
if(cellWidths[i] == NO_WIDTH) {
noWidthColumnCounter++;
}
else {
usedWidth += cellWidths[i];
}
}
float unusedPerColumnWidth = (tableWidth - usedWidth) / noWidthColumnCounter;
for(int i=0; i<cellWidths.length; i++) {
if(cellWidths[i] == NO_WIDTH) {
cellWidths[i] = unusedPerColumnWidth;
}
}
return cellWidths;
}
/**
* @since 5.0.1
*/
public ArrayList<Chunk> getChunks() {
// TODO Auto-generated method stub
return null;
}
/**
* @since 5.0.1
*/
public boolean isContent() {
// TODO Auto-generated method stub
return false;
}
/**
* @since 5.0.1
*/
public boolean isNestable() {
// TODO Auto-generated method stub
return false;
}
/**
* @since 5.0.1
*/
public boolean process(ElementListener listener) {
// TODO Auto-generated method stub
return false;
}
/**
* @since 5.0.1
*/
public int type() {
// TODO Auto-generated method stub
return 0;
}
}