/* * $Id: PdfPTable.java,v 1.29 2002/11/19 08:33:38 blowagie Exp $ * $Name:  $ * * Copyright 2001, 2002 Paulo Soares * * The contents of this file are subject to the Mozilla Public License Version 1.1 * (the "License"); you may not use this file except in compliance with the License. * You may obtain a copy of the License at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the License. * * The Original Code is 'iText, a free JAVA-PDF library'. * * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie. * All Rights Reserved. * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved. * * Contributor(s): all the names of the contributors are added in the source code * where applicable. * * Alternatively, the contents of this file may be used under the terms of the * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the * provisions of LGPL are applicable instead of those above.  If you wish to * allow use of your version of this file only under the terms of the LGPL * License and not to allow others to use your version of this file under * the MPL, indicate your decision by deleting the provisions above and * replace them with the notice and other provisions required by the LGPL. * If you do not delete the provisions above, a recipient may use your version * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE. * * This library is free software; you can redistribute it and/or modify it * under the terms of the MPL as stated above or under the terms of the GNU * Library General Public License as published by the Free Software Foundation; * either version 2 of the License, or any later version. * * This library 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 Library general Public License for more * details. * * If you didn't download this code from the following link, you should check if * you aren't using an obsolete version: * http://www.lowagie.com/iText/ */package com.lowagie.text.pdf;import java.util.ArrayList;import com.lowagie.text.Phrase;import com.lowagie.text.Element;import com.lowagie.text.ElementListener;import com.lowagie.text.DocumentException;/** This is a table that can be put at an absolute position but can also * be added to the document as the class <CODE>Table</CODE>. * In the last case when crossing pages the table always break at full rows; if a * row is bigger than the page it is dropped silently to avoid infinite loops. * <P> * A PdfPTableEvent can be associated to the table to do custom drawing * when the table is rendered. * @author Paulo Soares (psoares@consiste.pt) */public class PdfPTable implements Element{        /** The index of the original <CODE>PdfcontentByte</CODE>.     */        public static final int BASECANVAS = 0;    /** The index of the duplicate <CODE>PdfContentByte</CODE> where the backgroung will be drawn.     */        public static final int BACKGROUNDCANVAS = 1;    /** The index of the duplicate <CODE>PdfContentByte</CODE> where the border lines will be drawn.     */        public static final int LINECANVAS = 2;    /** The index of the duplicate <CODE>PdfContentByte</CODE> where the text will be drawn.     */        public static final int TEXTCANVAS = 3;        protected ArrayList rows = new ArrayList();    protected float totalHeight = 0;    protected PdfPCell currentRow[];    protected int currentRowIdx = 0;    protected PdfPCell defaultCell = new PdfPCell((Phrase)null);    protected float totalWidth = 0;    protected float relativeWidths[];    protected float absoluteWidths[];    protected PdfPTableEvent tableEvent;    /** Holds value of property headerRows. */    protected int headerRows;    /** Holds value of property widthPercentage. */    protected float widthPercentage = 80;    /** Holds value of property horizontalAlignment. */    private int horizontalAlignment = Element.ALIGN_CENTER;    /** Holds value of property skipFirstHeader. */    private boolean skipFirstHeader = false;    protected boolean isColspan = false;        protected int runDirection = PdfWriter.RUN_DIRECTION_DEFAULT;    /** Constructs a <CODE>PdfPTable</CODE> with the relative column widths.     * @param relativeWidths the relative column widths     */        public PdfPTable(float relativeWidths[]) {        if (relativeWidths == null)            throw new NullPointerException("The widths array in PdfPTable constructor can not be null.");        if (relativeWidths.length == 0)            throw new IllegalArgumentException("The widths array in PdfPTable constructor can not have zero length.");        this.relativeWidths = new float[relativeWidths.length];        System.arraycopy(relativeWidths, 0, this.relativeWidths, 0, relativeWidths.length);        absoluteWidths = new float[relativeWidths.length];        calculateWidths();        currentRow = new PdfPCell[absoluteWidths.length];    }        /** Constructs a <CODE>PdfPTable</CODE> with <CODE>numColumns</CODE> columns.     * @param numColumns the number of columns     */        public PdfPTable(int numColumns) {        if (numColumns <= 0)            throw new IllegalArgumentException("The number of columns in PdfPTable constructor must be greater than zero.");        relativeWidths = new float[numColumns];        for (int k = 0; k < numColumns; ++k)            relativeWidths[k] = 1;        absoluteWidths = new float[relativeWidths.length];        calculateWidths();        currentRow = new PdfPCell[absoluteWidths.length];    }        /** Constructs a copy of a <CODE>PdfPTable</CODE>.     * @param table the <CODE>PdfPTable</CODE> to be copied     */        public PdfPTable(PdfPTable table) {        relativeWidths = new float[table.relativeWidths.length];        absoluteWidths = new float[table.relativeWidths.length];        System.arraycopy(table.relativeWidths, 0, relativeWidths, 0, relativeWidths.length);        System.arraycopy(table.absoluteWidths, 0, absoluteWidths, 0, relativeWidths.length);        totalWidth = table.totalWidth;        totalHeight = table.totalHeight;        currentRowIdx = table.currentRowIdx;        tableEvent = table.tableEvent;        runDirection = table.runDirection;        defaultCell = new PdfPCell(table.defaultCell);        currentRow = new PdfPCell[table.currentRow.length];        isColspan = table.isColspan;        for (int k = 0; k < currentRow.length; ++k) {            if (table.currentRow[k] == null)                break;            currentRow[k] = new PdfPCell(table.currentRow[k]);        }        for (int k = 0; k < table.rows.size(); ++k) {            rows.add(new PdfPRow((PdfPRow)(table.rows.get(k))));        }    }        /** Sets the relative widths of the table.     * @param relativeWidths the relative widths of the table.     * @throws DocumentException if the number of widths is different than tne number     * of columns     */        public void setWidths(float relativeWidths[]) throws DocumentException {        if (relativeWidths.length != this.relativeWidths.length)            throw new DocumentException("Wrong number of columns.");        this.relativeWidths = new float[relativeWidths.length];        System.arraycopy(relativeWidths, 0, this.relativeWidths, 0, relativeWidths.length);        absoluteWidths = new float[relativeWidths.length];        totalHeight = 0;        calculateWidths();        calculateHeights();    }    /** Sets the relative widths of the table.     * @param relativeWidths the relative widths of the table.     * @throws DocumentException if the number of widths is different than tne number     * of columns     */        public void setWidths(int relativeWidths[]) throws DocumentException {        float tb[] = new float[relativeWidths.length];        for (int k = 0; k < relativeWidths.length; ++k)            tb[k] = relativeWidths[k];        setWidths(tb);    }    private void calculateWidths() {        if (totalWidth <= 0)            return;        float total = 0;        for (int k = 0; k < absoluteWidths.length; ++k) {            total += relativeWidths[k];        }        for (int k = 0; k < absoluteWidths.length; ++k) {            absoluteWidths[k] = totalWidth * relativeWidths[k] / total;        }    }        /** Sets the full width of the table.     * @param totalWidth the full width of the table.     */        public void setTotalWidth(float totalWidth) {        if (this.totalWidth == totalWidth)            return;        this.totalWidth = totalWidth;        totalHeight = 0;        calculateWidths();        calculateHeights();    }    /** Gets the full width of the table.     * @return the full width of the table     */        public float getTotalWidth() {        return totalWidth;    }    void calculateHeights() {        if (totalWidth <= 0)            return;        totalHeight = 0;        for (int k = 0; k < rows.size(); ++k) {            PdfPRow row = (PdfPRow)rows.get(k);            row.setWidths(absoluteWidths);            totalHeight += row.getMaxHeights();        }    }        /** Gets the default <CODE>PdfPCell</CODE> that will be used as     * reference for all the <CODE>addCell</CODE> methods except     * <CODE>addCell(PdfPCell)</CODE>.     * @return default <CODE>PdfPCell</CODE>     */        public PdfPCell getDefaultCell() {        return defaultCell;    }        /** Adds a cell element.     * @param cell the cell element     */        public void addCell(PdfPCell cell) {        PdfPCell ncell = new PdfPCell(cell);        int colspan = ncell.getColspan();        colspan = Math.max(colspan, 1);        colspan = Math.min(colspan, currentRow.length - currentRowIdx);        ncell.setColspan(colspan);        if (colspan != 1)            isColspan = true;        int rdir = ncell.getRunDirection();        if (rdir == PdfWriter.RUN_DIRECTION_DEFAULT)            ncell.setRunDirection(runDirection);        currentRow[currentRowIdx] = ncell;        currentRowIdx += colspan;        if (currentRowIdx >= currentRow.length) {            if (runDirection == PdfWriter.RUN_DIRECTION_RTL) {                PdfPCell rtlRow[] = new PdfPCell[absoluteWidths.length];                int rev = currentRow.length;                for (int k = 0; k < currentRow.length; ++k) {                    PdfPCell rcell = currentRow[k];                    int cspan = rcell.getColspan();                    rev -= cspan;                    rtlRow[rev] = rcell;                    k += cspan - 1;                }                currentRow = rtlRow;            }            PdfPRow row = new PdfPRow(currentRow);            if (totalWidth > 0) {                row.setWidths(absoluteWidths);                totalHeight += row.getMaxHeights();            }            rows.add(row);            currentRow = new PdfPCell[absoluteWidths.length];            currentRowIdx = 0;        }    }        /** Adds a cell element.     * @param text the text for the cell     */        public void addCell(String text) {        addCell(new Phrase(text));    }        /** Adds a cell element.     * @param table the table to be added to the cell     */        public void addCell(PdfPTable table) {        defaultCell.setTable(table);        addCell(defaultCell);        defaultCell.setTable(null);    }        /** Adds a cell element.     * @param phrase the <CODE>Phrase</CODE> to be added to the cell     */        public void addCell(Phrase phrase) {        defaultCell.setPhrase(phrase);        addCell(defaultCell);        defaultCell.setPhrase(null);    }        /**     * Writes the selected rows to the document.     * <P>     * <CODE>canvases</CODE> is obtained from <CODE>beginWrittingRows()</CODE>.     * @param rowStart the first row to be written, zero index