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/*
 * $Id: SimpleTable.java 4065 2009-09-16 23:09:11Z psoares33 $
 *
 * Copyright 2005 by Bruno Lowagie.
 *
 * 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:
 * https://github.com/LibrePDF/OpenPDF
 */
package com.lowagie.text;

import com.lowagie.text.alignment.HorizontalAlignment;
import com.lowagie.text.error_messages.MessageLocalization;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfPTableEvent;
import java.util.ArrayList;
import java.util.Optional;


/**
 * Rectangle that can be used for Cells.
 * This Rectangle is padded and knows how to draw itself in a PdfPTable or PdfPcellEvent.
 */
public class SimpleTable extends Rectangle implements PdfPTableEvent, TextElementArray {

    /** the content of a Table. */
    private java.util.List content = new ArrayList<>();
    /** the width of the Table. */
    private float width = 0f;
    /** the widthpercentage of the Table. */
    private float widthpercentage = 0f;
    /** the spacing of the Cells. */
    private float cellspacing;
    /** the padding of the Cells. */
    private float cellpadding;
    /** the alignment of the table. */
    private int alignment;
    
    /**
     * A RectangleCell is always constructed without any dimensions.
     * Dimensions are defined after creation.
     */
    public SimpleTable() {
        super(0f, 0f, 0f, 0f);
        setBorder(BOX);
        setBorderWidth(2f);
    }

    /**
     * Adds content to this object.
     *
     * @param element an object of type {@link SimpleCell}
     *                that will be added in the table
     * @throws BadElementException on error
     */
    public void addElement(SimpleCell element) throws BadElementException {
        if(!element.isCellgroup()) {
            throw new BadElementException(MessageLocalization.getComposedMessage("you.can.t.add.cells.to.a.table.directly.add.them.to.a.row.first"));
        }
        content.add(element);
    }

    /**
     * Creates a Table object based on this TableAttributes object.
     *
     * @return a {@link Table} object
     * @throws BadElementException on error
     */
    public Table createTable() throws BadElementException {
        if (content.isEmpty()) throw new BadElementException(MessageLocalization.getComposedMessage("trying.to.create.a.table.without.rows"));
        SimpleCell row = (SimpleCell)content.get(0);
        SimpleCell cell;
        int columns = 0;
        for (Object o2 : row.getContent()) {
            cell = (SimpleCell) o2;
            columns += cell.getColspan();
        }
        float[] widths = new float[columns];
        float[] widthpercentages = new float[columns];
        Table table = new Table(columns);
        final Optional of = HorizontalAlignment.of(alignment);
        table.setHorizontalAlignment(of.orElse(HorizontalAlignment.UNDEFINED));
        table.setSpacing(cellspacing);
        table.setPadding(cellpadding);
        table.cloneNonPositionParameters(this);
        int pos;
        for (Object o1 : content) {
            row = (SimpleCell) o1;
            pos = 0;
            for (Object o : row.getContent()) {
                cell = (SimpleCell) o;
                table.addCell(cell.createCell(row));
                if (cell.getColspan() == 1) {
                    if (cell.getWidth() > 0) widths[pos] = cell.getWidth();
                    if (cell.getWidthpercentage() > 0) widthpercentages[pos] = cell.getWidthpercentage();
                }
                pos += cell.getColspan();
            }
        }
        float sumWidths = 0f;
        for(int i = 0; i < columns; i++) {
            if (widths[i] == 0) {
                sumWidths = 0;
                break;
            }
            sumWidths += widths[i];
        }
        if (sumWidths > 0) {
            table.setWidth(sumWidths);
            table.setLocked(true);
            table.setWidths(widths);
        }
        else {
            for(int i = 0; i < columns; i++) {
                if (widthpercentages[i] == 0) {
                    sumWidths = 0;
                    break;
                }
                sumWidths += widthpercentages[i];
            }
            if (sumWidths > 0) {
                table.setWidths(widthpercentages);
            }
        }
        if (width > 0) {
            table.setWidth(width);
            table.setLocked(true);
        }
        else if (widthpercentage > 0) {
            table.setWidth(widthpercentage);
        }
        return table;
    }

    /**
     * Creates a {@link com.lowagie.text.pdf.PdfTable} object based on this TableAttributes object.
     *
     * @return a {@link com.lowagie.text.pdf.PdfTable} object
     * @throws DocumentException on error
     */
    public PdfPTable createPdfPTable() throws DocumentException {
        if (content.isEmpty()) throw new BadElementException(MessageLocalization.getComposedMessage("trying.to.create.a.table.without.rows"));
        SimpleCell row = (SimpleCell)content.get(0);
        SimpleCell cell;
        int columns = 0;
        for (Object o2 : row.getContent()) {
            cell = (SimpleCell) o2;
            columns += cell.getColspan();
        }
        float[] widths = new float[columns];
        float[] widthpercentages = new float[columns];
        PdfPTable table = new PdfPTable(columns);
        table.setTableEvent(this);
        table.setHorizontalAlignment(alignment);
        int pos;
        for (Object o1 : content) {
            row = (SimpleCell) o1;
            pos = 0;
            for (Object o : row.getContent()) {
                cell = (SimpleCell) o;
                if (Float.isNaN(cell.getSpacing_left())) {
                    cell.setSpacing_left(cellspacing / 2f);
                }
                if (Float.isNaN(cell.getSpacing_right())) {
                    cell.setSpacing_right(cellspacing / 2f);
                }
                if (Float.isNaN(cell.getSpacing_top())) {
                    cell.setSpacing_top(cellspacing / 2f);
                }
                if (Float.isNaN(cell.getSpacing_bottom())) {
                    cell.setSpacing_bottom(cellspacing / 2f);
                }
                cell.setPadding(cellpadding);
                table.addCell(cell.createPdfPCell(row));
                if (cell.getColspan() == 1) {
                    if (cell.getWidth() > 0) widths[pos] = cell.getWidth();
                    if (cell.getWidthpercentage() > 0) widthpercentages[pos] = cell.getWidthpercentage();
                }
                pos += cell.getColspan();
            }
        }
        float sumWidths = 0f;
        for(int i = 0; i < columns; i++) {
            if (widths[i] == 0) {
                sumWidths = 0;
                break;
            }
            sumWidths += widths[i];
        }
        if (sumWidths > 0) {
            table.setTotalWidth(sumWidths);
            table.setWidths(widths);
        }
        else {
            for(int i = 0; i < columns; i++) {
                if (widthpercentages[i] == 0) {
                    sumWidths = 0;
                    break;
                }
                sumWidths += widthpercentages[i];
            }
            if (sumWidths > 0) {
                table.setWidths(widthpercentages);
            }
        }
        if (width > 0) {
            table.setTotalWidth(width);
        }
        if (widthpercentage > 0) {
            table.setWidthPercentage(widthpercentage);
        }
        return table;
    }
    
    /**
     * @see com.lowagie.text.pdf.PdfPTableEvent#tableLayout(com.lowagie.text.pdf.PdfPTable, float[][], float[], int, int, com.lowagie.text.pdf.PdfContentByte[])
      */
    public void tableLayout(PdfPTable table, float[][] widths, float[] heights, int headerRows, int rowStart, PdfContentByte[] canvases) {
        float[] width = widths[0];
        Rectangle rect = new Rectangle(width[0], heights[heights.length - 1], width[width.length - 1], heights[0]);
        rect.cloneNonPositionParameters(this);
        int bd = rect.getBorder();
        rect.setBorder(Rectangle.NO_BORDER);
        canvases[PdfPTable.BACKGROUNDCANVAS].rectangle(rect);
        rect.setBorder(bd);
        rect.setBackgroundColor(null);
        canvases[PdfPTable.LINECANVAS].rectangle(rect);
    }
    
    /**
     * @return Returns the cellpadding.
     */
    public float getCellpadding() {
        return cellpadding;
    }
    /**
     * @param cellpadding The cellpadding to set.
     */
    public void setCellpadding(float cellpadding) {
        this.cellpadding = cellpadding;
    }
    /**
     * @return Returns the cellspacing.
     */
    public float getCellspacing() {
        return cellspacing;
    }
    /**
     * @param cellspacing The cellspacing to set.
     */
    public void setCellspacing(float cellspacing) {
        this.cellspacing = cellspacing;
    }
    
    /**
     * @return Returns the alignment.
     */
    public int getAlignment() {
        return alignment;
    }
    /**
     * @param alignment The alignment to set.
     */
    public void setAlignment(int alignment) {
        this.alignment = alignment;
    }
    /**
     * @return Returns the width.
     */
    public float getWidth() {
        return width;
    }
    /**
     * @param width The width to set.
     */
    public void setWidth(float width) {
        this.width = width;
    }
    /**
     * @return Returns the widthpercentage.
     */
    public float getWidthpercentage() {
        return widthpercentage;
    }
    /**
     * @param widthpercentage The widthpercentage to set.
     */
    public void setWidthpercentage(float widthpercentage) {
        this.widthpercentage = widthpercentage;
    }
    /**
     * @see com.lowagie.text.Element#type()
     */
    public int type() {
        return Element.TABLE;
    }

    /**
     * @see com.lowagie.text.Element#isNestable()
     * @since    iText 2.0.8
     */
    public boolean isNestable() {
        return true;
    }

    /**
     * @see com.lowagie.text.TextElementArray#add(Element)
     */
    public boolean add(Element o) {
        try {
            addElement((SimpleCell)o);
            return true;
        }
        catch(ClassCastException e) {
            return false;
        }
        catch(BadElementException e) {
            throw new ExceptionConverter(e);
        }
    }
}




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