Java tutorial
/* * $Id: LineSeparator.java 3373 2008-05-12 16:21:24Z xlv $ * * Copyright 2008 by 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.draw; import com.lowagie.text.Element; import com.lowagie.text.pdf.PdfContentByte; import java.awt.Color; /** * Element that draws a solid line from left to right. * Can be added directly to a document or column. * Can also be used to create a separator chunk. * @author Paulo Soares * @since 2.1.2 */ public class LineSeparator extends VerticalPositionMark { /** The thickness of the line. */ protected float lineWidth = 1; /** The width of the line as a percentage of the available page width. */ protected float percentage = 100; /** The color of the line. */ protected Color lineColor; /** The alignment of the line. */ protected int alignment = Element.ALIGN_CENTER; /** * Creates a new instance of the LineSeparator class. * @param lineWidth the thickness of the line * @param percentage the width of the line as a percentage of the available page width * @param lineColor the color of the line * @param align the alignment * @param offset the offset of the line relative to the current baseline (negative = under the baseline) */ public LineSeparator(float lineWidth, float percentage, Color lineColor, int align, float offset) { this.lineWidth = lineWidth; this.percentage = percentage; this.lineColor = lineColor; this.alignment = align; this.offset = offset; } /** * Creates a new instance of the LineSeparator class with * default values: lineWidth 1 user unit, width 100%, centered with offset 0. */ public LineSeparator() { } /** * @see com.lowagie.text.pdf.draw.DrawInterface#draw(com.lowagie.text.pdf.PdfContentByte, float, float, float, float, float) */ public void draw(PdfContentByte canvas, float llx, float lly, float urx, float ury, float y) { canvas.saveState(); drawLine(canvas, llx, urx, y); canvas.restoreState(); } /** * Draws a horizontal line. * @param canvas the canvas to draw on * @param leftX the left x coordinate * @param rightX the right x coordindate * @param y the y coordinate */ public void drawLine(PdfContentByte canvas, float leftX, float rightX, float y) { float w; if (getPercentage() < 0) w = -getPercentage(); else w = (rightX - leftX) * getPercentage() / 100.0f; float s; switch (getAlignment()) { case Element.ALIGN_LEFT: s = 0; break; case Element.ALIGN_RIGHT: s = rightX - leftX - w; break; default: s = (rightX - leftX - w) / 2; break; } canvas.setLineWidth(getLineWidth()); if (getLineColor() != null) canvas.setColorStroke(getLineColor()); canvas.moveTo(s + leftX, y + offset); canvas.lineTo(s + w + leftX, y + offset); canvas.stroke(); } /** * Getter for the line width. * @return the thickness of the line that will be drawn. */ public float getLineWidth() { return lineWidth; } /** * Setter for the line width. * @param lineWidth the thickness of the line that will be drawn. */ public void setLineWidth(float lineWidth) { this.lineWidth = lineWidth; } /** * Setter for the width as a percentage of the available width. * @return a width percentage */ public float getPercentage() { return percentage; } /** * Setter for the width as a percentage of the available width. * @param percentage a width percentage */ public void setPercentage(float percentage) { this.percentage = percentage; } /** * Getter for the color of the line that will be drawn. * @return a color */ public Color getLineColor() { return lineColor; } /** * Setter for the color of the line that will be drawn. * @param color a color */ public void setLineColor(Color color) { this.lineColor = color; } /** * Getter for the alignment of the line. * @return an alignment value */ public int getAlignment() { return alignment; } /** * Setter for the alignment of the line. * @param align an alignment value */ public void setAlignment(int align) { this.alignment = align; } }