com.itextpdf.text.pdf.parser.RenderListener Maven / Gradle / Ivy
/*
* $Id: 2d5d7faf40382a66969f424d6ee5e90498fd9ea5 $
*
* This file is part of the iText (R) project.
* Copyright (c) 1998-2016 iText Group NV
* Authors: Kevin Day, 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
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*/
package com.itextpdf.text.pdf.parser;
/**
* A callback interface that receives notifications from the {@link PdfContentStreamProcessor}
* as various render operations are required.
*
* Important: This interface may be converted to an abstract base class in the future
* to allow for adding additional render calls as the content stream processor is enhanced
* @since 5.0
*/
public interface RenderListener {
/**
* Called when a new text block is beginning (i.e. BT)
* @since iText 5.0.1
*/
public void beginTextBlock();
/**
* Called when text should be rendered
* @param renderInfo information specifying what to render
*/
public void renderText(TextRenderInfo renderInfo);
/**
* Called when a text block has ended (i.e. ET)
* @since iText 5.0.1
*/
public void endTextBlock();
/**
* Called when image should be rendered
* @param renderInfo information specifying what to render
* @since iText 5.0.1
*/
public void renderImage(ImageRenderInfo renderInfo);
}