/* * $Id: Graphic.java,v 1.57 2004/12/14 12:33:47 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.awt.Color; import java.util.ArrayList; import java.util.Iterator; import java.util.HashMap; import com.lowagie.text.pdf.PdfContentByte; /** * A <CODE>Graphic</CODE> element can contain several geometric figures (curves, lines,...). * <P> * If you want to use this <CODE>Element</CODE>, please read the Sections 8.4 and 8.5 of * the PDF Reference Manual version 1.3 first. * * @see Element */ public class Graphic extends PdfContentByte implements Element { /** This is a type of Graphic. */ public static final String HORIZONTAL_LINE = "HORIZONTAL"; /** This is a type of Graphic. */ public static final String BORDER = "BORDER"; /** Contains some of the attributes for this Graphic. */ private HashMap attributes; // constructor /** * Constructs a <CODE>Graphic</CODE>-object. */ public Graphic() { super(null); } // implementation of the Element interface /** * Processes the element by adding it (or the different parts) to an * <CODE>ElementListener</CODE>. * * @param listener an <CODE>ElementListener</CODE> * <CODE>true</CODE> if the element was processed successfully * @return true if processing this object succeeded */ 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.GRAPHIC; } /** * Gets all the chunks in this element. * * @return an <CODE>ArrayList</CODE> */ public ArrayList getChunks() { return new ArrayList(); } /** * Orders this graphic to draw a horizontal, centered line. * @param linewidth the line width * @param percentage the percentage horizontal width in relation to the margins or if negative, an absolute value */ public void setHorizontalLine(float linewidth, float percentage) { if (attributes == null) attributes = new HashMap(); attributes.put(HORIZONTAL_LINE, new Object[]{new Float(linewidth), new Float(percentage), Color.black, new Integer(Element.ALIGN_CENTER)}); } /** * Orders this graphic to draw a horizontal line with some alignment. * @param linewidth the line width * @param percentage the percentage horizontal width in relation to the margins or if negative, an absolute value * @param align the line alignment */ public void setHorizontalLine(float linewidth, float percentage, int align) { if (attributes == null) attributes = new HashMap(); attributes.put(HORIZONTAL_LINE, new Object[]{new Float(linewidth), new Float(percentage), Color.black, new Integer(align)}); } /** * Orders this graphic to draw a horizontal, centered line. * @param linewidth the line width * @param percentage the percentage horizontal width in relation to the margins or if negative, an absolute value * @param color the color of the line */ public void setHorizontalLine(float linewidth, float percentage, Color color) { if (attributes == null) attributes = new HashMap(); attributes.put(HORIZONTAL_LINE, new Object[]{new Float(linewidth), new Float(percentage), color, new Integer(Element.ALIGN_CENTER)}); } /** * Orders this graphic to draw a horizontal, centered line. * @param linewidth the line width * @param percentage the percentage horizontal width in relation to the margins or if negative, an absolute value * @param color the color of the line * @param align the line alignment */ public void setHorizontalLine(float linewidth, float percentage, Color color, int align) { if (attributes == null) attributes = new HashMap(); attributes.put(HORIZONTAL_LINE, new Object[]{new Float(linewidth), new Float(percentage), color, new Integer(align)}); } /** * draws a horizontal line. * @param lineWidth width of the line * @param color color of the line * @param x1 start position of the line * @param x2 end position of the line * @param y y-coordinate of the line */ public void drawHorizontalLine(float lineWidth, Color color, float x1, float x2, float y) { setLineWidth(lineWidth); setColorStroke(color); moveTo(x1, y); lineTo(x2, y); stroke(); resetRGBColorStroke(); } /** * Orders this graphic to draw a horizontal line. * @param linewidth linewidth of the border * @param extraSpace extraspace needed as marging on the page */ public void setBorder(float linewidth, float extraSpace) { if (attributes == null) attributes = new HashMap(); attributes.put(BORDER, new Object[]{new Float(linewidth), new Float(extraSpace), new Color(0, 0, 0)}); } /** * Orders this graphic to draw a horizontal line. * @param linewidth linewidth of the border * @param extraSpace extraspace needed as marging on the page * @param color color of the borderbox */ public void setBorder(float linewidth, float extraSpace, Color color) { if (attributes == null) attributes = new HashMap(); attributes.put(BORDER, new Object[]{new Float(linewidth), new Float(extraSpace), color}); } /** * Draws a border * @param lineWidth linewidth of the border * @param color color of the borderbox * @param llx lower left x coordinate * @param lly lower left y coordinate * @param urx upper right x coordinate * @param ury upper right y coordinate */ public void drawBorder(float lineWidth, Color color, float llx, float lly, float urx, float ury) { setLineWidth(lineWidth); setColorStroke(color); rectangle(llx, lly, urx - llx, ury - lly); stroke(); resetRGBColorStroke(); } /** * Processes the attributes of this object. * @param llx lower left x coordinate * @param lly lower left y coordinate * @param urx upper right x coordinate * @param ury upper right y coordinate * @param y */ public void processAttributes(float llx, float lly, float urx, float ury, float y) { if (attributes == null) return; String attribute; Object[] o; for (Iterator i = attributes.keySet().iterator(); i.hasNext(); ) { attribute = (String) i.next(); o = (Object[]) attributes.get(attribute); if (HORIZONTAL_LINE.equals(attribute)) { float p = ((Float)o[1]).floatValue(); float w; if (p < 0) w = -p; else w = (urx - llx) * p / 100.0f; int align = ((Integer)o[3]).intValue(); float s; switch (align) { case Element.ALIGN_LEFT: s = 0; break; case Element.ALIGN_RIGHT: s = urx - llx - w; break; default: s = (urx - llx - w) / 2; } drawHorizontalLine(((Float)o[0]).floatValue(), (Color)o[2], s + llx, s + w + llx, y); } if (BORDER.equals(attribute)) { float extra = ((Float)o[1]).floatValue(); drawBorder(((Float)o[0]).floatValue(), (Color)o[2], llx - extra, lly - extra, urx + extra, ury + extra); } } } }