Java tutorial
/* * * This file is part of the iText (R) project. Copyright (c) 1998-2019 iText Group NV * Authors: Bruno Lowagie, Paulo Soares, et al. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT * OF THIRD PARTY RIGHTS * * This program 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 Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA, 02110-1301 USA, or download the license from the following URL: * http://itextpdf.com/terms-of-use/ * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License. * * In accordance with Section 7(b) of the GNU Affero General Public License, * a covered work must retain the producer line in every PDF that is created * or manipulated using iText. * * You can be released from the requirements of the license by purchasing * a commercial license. Buying such a license is mandatory as soon as you * develop commercial activities involving the iText software without * disclosing the source code of your own applications. * These activities include: offering paid services to customers as an ASP, * serving PDFs on the fly in a web application, shipping iText with a closed * source product. * * For more information, please contact iText Software Corp. at this * address: sales@itextpdf.com */ package com.itextpdf.text.pdf.draw; import com.itextpdf.text.BaseColor; import com.itextpdf.text.Element; import com.itextpdf.text.Font; import com.itextpdf.text.pdf.PdfChunk; import com.itextpdf.text.pdf.PdfContentByte; /** * 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 BaseColor lineColor; /** The alignment of the line. */ protected int alignment = Element.ALIGN_BOTTOM; /** * 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, BaseColor 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. * @param font the font */ public LineSeparator(Font font) { this.lineWidth = PdfChunk.UNDERLINE_THICKNESS * font.getSize(); this.offset = PdfChunk.UNDERLINE_OFFSET * font.getSize(); this.percentage = 100; this.lineColor = font.getColor(); } /** * 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.itextpdf.text.pdf.draw.DrawInterface#draw(com.itextpdf.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 BaseColor getLineColor() { return lineColor; } /** * Setter for the color of the line that will be drawn. * @param color a color */ public void setLineColor(BaseColor 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; } }