rtfdestinationshppict.java

处理PDF

/*
 * $Id: RtfDestinationShppict.java 3453 2008-05-26 03:02:41Z xlv $
 *
 * Copyright 2007, 2008 by Howard Shank ([e-mail])
 *
 * 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) 1999-2006 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000-2006 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.rtf.parser.destinations;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;

import com.lowagie.text.BadElementException;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Image;
import com.lowagie.text.rtf.direct.RtfDirectContent;
import com.lowagie.text.rtf.parser.RtfParser;
import com.lowagie.text.rtf.parser.ctrlwords.RtfCtrlWordData;

/**
 * <code>RtfDestinationShppict</code> handles data destined for picture destinations
 * 
 * @author Howard Shank ([e-mail])
 * @since 2.0.8
 */
public class RtfDestinationShppict extends RtfDestination {
	private StringBuffer hexChars = new StringBuffer(0);

	private StringBuffer buffer = new StringBuffer();

	/* picttype */
	private int pictureType = Image.ORIGINAL_NONE;

	//	public static final int ORIGINAL_NONE = 0;
	//	public static final int ORIGINAL_GIF = 3;
	//	public static final int ORIGINAL_TIFF = 5;
	//  public static final int ORIGINAL_PS = 7;

	// emfblip - EMF (enhanced metafile) - NOT HANDLED
	// pngblip int ORIGINAL_PNG = 2;
	// jpegblip Image.ORIGINAL_JPEG = 1; ORIGINAL_JPEG2000 = 8;

	// shppict - Destination
	// nonshpict - Destination - SKIP THIS
	// macpict - Mac QuickDraw- NOT HANDLED
	// pmmetafileN - OS/2 Metafile - NOT HANDLED
	// N * Meaning
	// 0x0004 PU_ARBITRARY
	// 0x0008 PU_PELS
	// 0x000C PU_LOMETRIC
	// 0x0010 PU_HIMETRIC
	// 0x0014 PU_LOENGLISH
	// 0x0018 PU_HIENGLISH
	// 0x001C PU_TWIPS
	private int pmmetafile = 0;

	// wmetafileN Image.RIGINAL_WMF = 6;
	// N * Type
	// 1 = MM_TEXT
	// 2 = M_LOMETRIC
	// 3 = MM_HIMETRIC
	// 4 = MM_LOENGLISH
	// 5 = MM_HIENGLISH
	// 6 = MM_TWIPS
	// 7 = MM_ISOTROPIC
	// 8 = MM_ANISOTROPIC
	// dibitmapN - DIB - Convert to BMP?
	// wbitmapN Image.ORIGINAL_BMP = 4;

	/* bitapinfo */
	// wbmbitspixelN - number of bits per pixel - 1 monochrome, 4 16 color, 8 256 color, 24 RGB - Default 1
	private Integer bitsPerPixel = new Integer(1);

	// wbmplanesN - number of color planes - must be 1
	private Integer planes = new Integer(1);

	// wbmwidthbytesN - number of bytes in each raster line
	private Integer widthBytes = null;

	/* pictsize */
	// picwN Ext field if the picture is a Windows metafile; picture width in pixels if the picture is a bitmap or
	// from quickdraw
	private Long width = null;

	// pichN
	private Long height = null;

	// picwgoalN
	private Long desiredWidth = null;

	// picgoalN
	private Long desiredHeight = null;

	// picscalexN
	private Integer scaleX = new Integer(100);

	// picscaleyN
	private Integer scaleY = new Integer(100);

	// picscaled - macpict setting
	private Boolean scaled = null;

	// picprop
	private Boolean inlinePicture = Boolean.FALSE;

	// defshp
	private Boolean wordArt = Boolean.FALSE;

	// piccroptN
	private Integer cropTop = new Integer(0);

	// piccropbN
	private Integer cropBottom = new Integer(0);

	// piccroplN
	private Integer cropLeft = new Integer(0);

	// piccroprN
	private Integer cropRight = new Integer(0);

	/* metafileinfo */
	// picbmp
	private boolean bitmap = false;

	//picbppN - Valid 1,4,8,24
	private int bbp = 1;

	/* data */
	// binN
	// 0 = HEX, 1 = BINARY
	public static final int FORMAT_HEXADECIMAL = 0;

	public static final int FORMAT_BINARY = 1;

	private int dataFormat = FORMAT_HEXADECIMAL;

	private long binaryLength = 0;

	// blipupiN
	private Integer unitsPerInch = null;

	// bliptagN
	private String tag = "";

	private static final int NORMAL = 0;

	private static final int BLIPUID = 1;

	private int state = NORMAL;

	/**
	 * Constant for converting pixels to twips
	 */
	private static final int PIXEL_TWIPS_FACTOR = 15;

	// Image data for import and conversion functions.
	private ByteArrayOutputStream dataOS = null;

	public RtfDestinationShppict() {
		super(null);
	}

	/**
	 * Constructs a new RtfDestinationShppict.
	 */
	public RtfDestinationShppict(RtfParser parser) {
		super(parser);
	}

	/* (non-Javadoc)
	 * @see com.lowagie.text.rtf.direct.RtfDestination#closeDestination()
	 */
	public boolean closeDestination() {
		if (this.rtfParser.isImport()) {
			if (this.buffer.length() > 0) {
				writeBuffer();
			}
		}
		return true;
	}

	/* (non-Javadoc)
	 * @see com.lowagie.text.rtf.direct.RtfDestination#handleGroupEnd()
	 */
	public boolean handleCloseGroup() {
		this.onCloseGroup(); // event handler

		if (this.rtfParser.isImport()) {
			if (this.buffer.length() > 0) {
				writeBuffer();
			}
			if (dataOS != null) {
				addImage();
				dataOS = null;
			}
			this.writeText("}");
			return true;
		}
		if (this.rtfParser.isConvert()) {
			if (dataOS != null) {
				addImage();
				dataOS = null;
			}
		}
		return true;
	}

	private boolean addImage() {
		Image img = null;

		try {
			img = Image.getInstance(dataOS.toByteArray());
			//data=null;
		} catch (BadElementException e) {
			e.printStackTrace();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			// log there was in unsupported image found. Continue to import/convert the document.
			e.printStackTrace();
		}

		if (img != null) {

			// DEBUG: Write test file to see what is in Image object.
			//				FileOutputStream out =null;
			//				try {
			//					out = new FileOutputStream("c:\\testOrig.png");
			//					out.write(dataOS.toByteArray());
			//					out.close();
			//					out = new FileOutputStream("c:\\testNew.png");
			//					out.write(img.getOriginalData());
			//					out.close();
			//				} catch (FileNotFoundException e1) {
			//					e1.printStackTrace();
			//				} catch (IOException e1) {
			//					e1.printStackTrace();
			//				}

			// set the image attributes

			img.scaleAbsolute(this.desiredWidth.floatValue()
					/ PIXEL_TWIPS_FACTOR, this.desiredHeight.floatValue()
					/ PIXEL_TWIPS_FACTOR);
			img.scaleAbsolute(this.width.floatValue() / PIXEL_TWIPS_FACTOR,
					this.height.floatValue() / PIXEL_TWIPS_FACTOR);
			img.scalePercent(this.scaleX.floatValue(), this.scaleY.floatValue());
			//				img.setBorder(value);

			try {
				if (this.rtfParser.isImport()) {
					Document doc = this.rtfParser.getDocument();
					doc.add(img);
//					RtfDocument rtfDoc = this.rtfParser.getRtfDocument();
//					RtfImage rtfImage = new RtfImage(rtfDoc, img);
//					rtfDoc.add(rtfImage);
				}
				if (this.rtfParser.isConvert()) {
					this.rtfParser.getDocument().add(img);
				}
			} catch (DocumentException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

		dataFormat = FORMAT_HEXADECIMAL;
		return true;
	}

	/* (non-Javadoc)
	 * @see com.lowagie.text.rtf.direct.RtfDestination#handleGroupStart()
	 */
	public boolean handleOpenGroup() {
		this.onOpenGroup(); // event handler

		if (this.rtfParser.isImport()) {
		}
		if (this.rtfParser.isConvert()) {
		}
		return true;
	}

	/* (non-Javadoc)
	 * @see com.lowagie.text.rtf.parser.destinations.RtfDestination#handleOpenNewGroup()
	 */
	public boolean handleOpeningSubGroup() {
		if (this.rtfParser.isImport()) {
			if (this.buffer.length() > 0) {
				writeBuffer();
			}
		}
		return true;
	}

	/* (non-Javadoc)
	 * @see com.lowagie.text.rtf.direct.RtfDestination#handleCharacter(int)
	 */
	public boolean handleCharacter(int ch) {

		if (this.rtfParser.isImport()) {
			if (buffer.length() > 254)
				writeBuffer();
		}
		//if(data == null) data = new ByteBuffer();
		if (dataOS == null) {
			dataOS = new ByteArrayOutputStream();