From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- src/main/java/com/lowagie/text/Row.java | 470 ++++++++++++++++++++++++++++++++ 1 file changed, 470 insertions(+) create mode 100644 src/main/java/com/lowagie/text/Row.java (limited to 'src/main/java/com/lowagie/text/Row.java') diff --git a/src/main/java/com/lowagie/text/Row.java b/src/main/java/com/lowagie/text/Row.java new file mode 100644 index 0000000..3604d92 --- /dev/null +++ b/src/main/java/com/lowagie/text/Row.java @@ -0,0 +1,470 @@ +/* + * $Id: Row.java,v 1.63 2005/04/13 09:17:11 blowagie Exp $ + * $Name: $ + * + * Copyright 1999, 2000, 2001, 2002 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: + * http://www.lowagie.com/iText/ + */ + +package com.lowagie.text; + +import java.util.ArrayList; +import java.util.Properties; +import java.util.Set; + +/** + * A Row is part of a Table + * and contains some Cells. + *

+ * All Rows are constructed by a Table-object. + * You don't have to construct any Row yourself. + * In fact you can't construct a Row outside the package. + *

+ * Since a Cell can span several rows and/or columns + * a row can contain reserved space without any content. + * + * @see Element + * @see Cell + * @see Table + */ + +public class Row implements Element, MarkupAttributes { + + // membervariables + +/** id of a null element in a Row*/ + public static final int NULL = 0; + +/** id of the Cell element in a Row*/ + public static final int CELL = 1; + +/** id of the Table element in a Row*/ + public static final int TABLE = 2; + +/** This is the number of columns in the Row. */ + protected int columns; + +/** This is a valid position the Row. */ + protected int currentColumn; + +/** This is the array that keeps track of reserved cells. */ + protected boolean[] reserved; + +/** This is the array of Objects (Cell or Table). */ + protected Object[] cells; + +/** This is the vertical alignment. */ + protected int horizontalAlignment; + +/** This is the vertical alignment. */ + protected int verticalAlignment; + +/** Contains extra markupAttributes */ + protected Properties markupAttributes; + + // constructors + +/** + * Constructs a Row with a certain number of columns. + * + * @param columns a number of columns + */ + + protected Row(int columns) { + this.columns = columns; + reserved = new boolean[columns]; + cells = new Object[columns]; + currentColumn = 0; + } + + // implementation of the Element-methods + +/** + * Processes the element by adding it (or the different parts) to a + * ElementListener. + * + * @param listener an ElementListener + * @return true if the element was processed successfully + */ + + public boolean process(ElementListener listener) { + try { + return listener.add(this); + } + catch(DocumentException de) { + return false; + } + } + +/** + * Gets the type of the text element. + * + * @return a type + */ + + public int type() { + return Element.ROW; + } + +/** + * Gets all the chunks in this element. + * + * @return an ArrayList + */ + + public ArrayList getChunks() { + return new ArrayList(); + } + +/** + * Returns a Row that is a copy of this Row + * in which a certain column has been deleted. + * + * @param column the number of the column to delete + */ + + void deleteColumn(int column) { + if ((column >= columns) || (column < 0)) { + throw new IndexOutOfBoundsException("getCell at illegal index : " + column); + } + columns--; + boolean newReserved[] = new boolean[columns]; + Object newCells[] = new Cell[columns]; + + for (int i = 0; i < column; i++) { + newReserved[i] = reserved[i]; + newCells[i] = cells[i]; + if (newCells[i] != null && (i + ((Cell) newCells[i]).colspan() > column)) { + ((Cell) newCells[i]).setColspan(((Cell) cells[i]).colspan() - 1); + } + } + for (int i = column; i < columns; i++) { + newReserved[i] = reserved[i + 1]; + newCells[i] = cells[i + 1]; + } + if (cells[column] != null && ((Cell) cells[column]).colspan() > 1) { + newCells[column] = cells[column]; + ((Cell) newCells[column]).setColspan(((Cell) newCells[column]).colspan() - 1); + } + reserved = newReserved; + cells = newCells; + } + + // methods + +/** + * Adds a Cell to the Row. + * + * @param element the element to add (currently only Cells and Tables supported) + * @return the column position the Cell was added, + * or -1 if the element couldn't be added. + */ + + int addElement(Object element) { + return addElement(element, currentColumn); + } + +/** + * Adds an element to the Row at the position given. + * + * @param element the element to add. (currently only Cells and Tables supported + * @param column the position where to add the cell. + * @return the column position the Cell was added, + * or -1 if the Cell couldn't be added. + */ + + int addElement(Object element, int column) { + if (element == null) throw new NullPointerException("addCell - null argument"); + if ((column < 0) || (column > columns)) throw new IndexOutOfBoundsException("addCell - illegal column argument"); + if ( !((getObjectID(element) == CELL) || (getObjectID(element) == TABLE)) ) throw new IllegalArgumentException("addCell - only Cells or Tables allowed"); + + int lColspan = ( (Cell.class.isInstance(element)) ? ((Cell) element).colspan() : 1); + + if ( reserve(column, lColspan) == false ) { + return -1; + } + + cells[column] = element; + currentColumn += lColspan - 1; + + return column; + } + +/** + * Puts Cell to the Row at the position given, doesn't reserve colspan. + * + * @param aElement the cell to add. + * @param column the position where to add the cell. + */ + + void setElement(Object aElement, int column) { + if (reserved[column] == true) throw new IllegalArgumentException("setElement - position already taken"); + + cells[column] = aElement; + if (aElement != null) { + reserved[column] = true; + } + } + +/** + * Reserves a Cell in the Row. + * + * @param column the column that has to be reserved. + * @return true if the column was reserved, false if not. + */ + + boolean reserve(int column) { + return reserve(column, 1); + } + + +/** + * Reserves a Cell in the Row. + * + * @param column the column that has to be reserved. + * @param size the number of columns + * @return true if the column was reserved, false if not. + */ + + boolean reserve(int column, int size) { + if ((column < 0) || ((column + size) > columns)) throw new IndexOutOfBoundsException("reserve - incorrect column/size"); + + for(int i=column; i < column + size; i++) + { + if (reserved[i] == true) { + // undo reserve + for(int j=i; j >= column; j--) { + reserved[i] = false; + } + return false; + } + reserved[i] = true; + } + return true; + } + +/** + * Sets the horizontal alignment. + * + * @param value the new value + */ + + public void setHorizontalAlignment(int value) { + horizontalAlignment = value; + } + +/** + * Sets the vertical alignment. + * + * @param value the new value + */ + + public void setVerticalAlignment(int value) { + verticalAlignment = value; + } + + // methods to retrieve information + +/** + * Returns true/false when this position in the Row has been reserved, either filled or through a colspan of an Element. + * + * @param column the column. + * @return true if the column was reserved, false if not. + */ + + boolean isReserved(int column) { + return reserved[column]; + } + +/** + * Returns the type-id of the element in a Row. + * + * @param column the column of which you'd like to know the type + * @return the type-id of the element in the row + */ + + int getElementID(int column) { + if (cells[column] == null) return NULL; + else if (Cell.class.isInstance(cells[column])) return CELL; + else if (Table.class.isInstance(cells[column])) return TABLE; + + return -1; + } + + +/** + * Returns the type-id of an Object. + * + * @param element the object of which you'd like to know the type-id, -1 if invalid + * @return the type-id of an object + */ + + int getObjectID(Object element) { + if (element == null) return NULL; + else if (Cell.class.isInstance(element)) return CELL; + else if (Table.class.isInstance(element)) return TABLE; + + return -1; + } + + +/** + * Gets a Cell or Table from a certain column. + * + * @param column the column the Cell/Table is in. + * @return the Cell,Table or Object if the column was + * reserved or null if empty. + */ + + public Object getCell(int column) { + if ((column < 0) || (column > columns)) { + throw new IndexOutOfBoundsException("getCell at illegal index :" + column + " max is " + columns); + } + return cells[column]; + } + +/** + * Checks if the row is empty. + * + * @return true if none of the columns is reserved. + */ + + public boolean isEmpty() { + for (int i = 0; i < columns; i++) { + if (cells[i] != null) { + return false; + } + } + return true; + } + +/** + * Gets the index of the current, valid position + * + * @return a value + */ + + int validPosition() { + return currentColumn; + } + +/** + * Gets the number of columns. + * + * @return a value + */ + + public int columns() { + return columns; + } + +/** + * Gets the horizontal alignment. + * + * @return a value + */ + + public int horizontalAlignment() { + return horizontalAlignment; + } + +/** + * Gets the vertical alignment. + * + * @return a value + */ + + public int verticalAlignment() { + return verticalAlignment; + } + +/** + * Checks if a given tag corresponds with this object. + * + * @param tag the given tag + * @return true if the tag corresponds + */ + + public static boolean isTag(String tag) { + return ElementTags.ROW.equals(tag); + } + + +/** + * @see com.lowagie.text.MarkupAttributes#setMarkupAttribute(java.lang.String, java.lang.String) + */ + public void setMarkupAttribute(String name, String value) { + if (markupAttributes == null) markupAttributes = new Properties(); + markupAttributes.put(name, value); + } + +/** + * @see com.lowagie.text.MarkupAttributes#setMarkupAttributes(java.util.Properties) + */ + public void setMarkupAttributes(Properties markupAttributes) { + this.markupAttributes = markupAttributes; + } + +/** + * @see com.lowagie.text.MarkupAttributes#getMarkupAttribute(java.lang.String) + */ + public String getMarkupAttribute(String name) { + return (markupAttributes == null) ? null : String.valueOf(markupAttributes.get(name)); + } + +/** + * @see com.lowagie.text.MarkupAttributes#getMarkupAttributeNames() + */ + public Set getMarkupAttributeNames() { + return Chunk.getKeySet(markupAttributes); + } + +/** + * @see com.lowagie.text.MarkupAttributes#getMarkupAttributes() + */ + public Properties getMarkupAttributes() { + return markupAttributes; + } +} -- cgit v1.2.3