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gnujpdf reformat
This commit is contained in:
Jindra Petřík
@@ -37,230 +37,234 @@ import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* <p>This class is the base of the PDF generator. A PDFDocument class is
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* created for a document, and each page, object, annotation,
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* etc is added to the document.
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* Once complete, the document can be written to an OutputStream, and the PDF
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* document's internal structures are kept in sync.</p>
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* <p>
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* This class is the base of the PDF generator. A PDFDocument class is created
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* for a document, and each page, object, annotation, etc is added to the
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* document. Once complete, the document can be written to an OutputStream, and
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* the PDF document's internal structures are kept in sync.</p>
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*
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* <p>Note that most programmers using this package will NEVER access
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* one of these objects directly. Most everything can be done using
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* <code>PDFJob</code> and <code>PDFGraphics</code>, so you don't need
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* to directly instantiate a <code>PDFDocument</code></p>
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* <p>
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* Note that most programmers using this package will NEVER access one of these
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* objects directly. Most everything can be done using <code>PDFJob</code> and
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* <code>PDFGraphics</code>, so you don't need to directly instantiate a
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* <code>PDFDocument</code></p>
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*
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* <p>ezb - 20011115 - Wondering if the constructors should even be public.
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* When would someone want to make one of these and manipulate it outside
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* the context of a job and graphics object?</p>
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* <p>
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* ezb - 20011115 - Wondering if the constructors should even be public. When
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* would someone want to make one of these and manipulate it outside the context
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* of a job and graphics object?</p>
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*
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* @author Peter T Mount, http://www.retep.org.uk/pdf/
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* @author Eric Z. Beard, ericzbeard@hotmail.com
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* @author Gilbert DeLeeuw, gil1@users.sourceforge.net
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* @version $Revision: 1.4 $, $Date: 2007/09/22 12:58:40 $
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*/
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public class PDFDocument implements Serializable
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{
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/*
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public class PDFDocument implements Serializable {
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/*
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* NOTE: This class originated in uk.org.retep.pdf, by Peter T. Mount, and it
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* has been modified by Eric Z. Beard, ericzbeard@hotmail.com. The
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* package name was changed to gnu.jpdf and several inner classes were
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* moved out into their own files.
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*/
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*/
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/**
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* This is used to allocate objects a unique serial number in the document.
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*/
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protected int objser;
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/**
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* This is used to allocate objects a unique serial number in the document.
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*/
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protected int objser;
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/**
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* This vector contains each indirect object within the document.
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*/
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protected Vector<PDFObject> objects;
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/**
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* This is the Catalog object, which is required by each PDF Document
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*/
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private PDFCatalog catalog;
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/**
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* This is the info object. Although this is an optional object, we
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* include it.
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*/
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private PDFInfo info;
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/**
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* This is the Pages object, which is required by each PDF Document
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*/
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private PDFPageList pdfPageList;
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/**
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* This is the Outline object, which is optional
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*/
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private PDFOutline outline;
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/**
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* This holds a PDFObject describing the default border for annotations.
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* It's only used when the document is being written.
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*/
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protected PDFObject defaultOutlineBorder;
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/**
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* <p>This page mode indicates that the document
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* should be opened just with the page visible. This is the default</p>
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*/
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public static final int USENONE = 0;
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/**
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* <p>This page mode indicates that the Outlines
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* should also be displayed when the document is opened.</p>
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*/
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public static final int USEOUTLINES = 1;
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/**
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* <p>This page mode indicates that the Thumbnails should be visible when the
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* document first opens.</p>
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*/
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public static final int USETHUMBS = 2;
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/**
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* <p>
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* This page mode indicates that when the document is opened, it is displayed
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* in full-screen-mode. There is no menu bar, window controls nor any other
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* window present.</p>
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*/
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public static final int FULLSCREEN = 3;
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/**
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* <p>
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* These map the page modes just defined to the pagemodes setting of PDF.
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* </p>
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*/
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public static final String PDF_PAGE_MODES[] = {
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"/UseNone",
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"/UseOutlines",
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"/UseThumbs",
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"/FullScreen"
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};
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/**
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* This is used to provide a unique name for a font
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*/
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private int fontid = 0;
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/**
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* <p>This is used to provide a unique name for an image</p>
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*/
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private int imageid = 0;
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/**
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* This holds the current fonts
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*/
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private Vector<PDFFont> fonts;
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/**
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* <p>This creates a PDF document with the default pagemode</p>
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*/
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public PDFDocument() {
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this(USENONE);
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}
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/**
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* <p>This creates a PDF document</p>
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* @param pagemode an int, determines how the document will present itself to
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* the viewer when it first opens.
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*/
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public PDFDocument(int pagemode) {
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objser = 1;
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objects = new Vector<PDFObject>();
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fonts = new Vector<PDFFont>();
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// Now create some standard objects
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add(pdfPageList = new PDFPageList());
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add(catalog = new PDFCatalog(pdfPageList,pagemode));
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add(info = new PDFInfo());
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// Acroread on linux seems to die if there is no root outline
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add(getOutline());
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}
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/**
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* This vector contains each indirect object within the document.
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*/
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protected Vector<PDFObject> objects;
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/**
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* This is the Catalog object, which is required by each PDF Document
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*/
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private PDFCatalog catalog;
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/**
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* This adds a top level object to the document.
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*
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* <p>Once added, it is allocated a unique serial number.
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*
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* <p><b>Note:</b> Not all object are added directly using this method.
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* Some objects which have Kids (in PDF sub-objects or children are
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* called Kids) will have their own add() method, which will call this
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* one internally.
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*
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* @param obj The PDFObject to add to the document
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* @return the unique serial number for this object.
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*/
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public synchronized int add(PDFObject obj)
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{
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objects.addElement(obj);
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obj.objser=objser++; // create a new serial number
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obj.pdfDocument = this; // so they can find the document they belong to
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// If its a page, then add it to the pages collection
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if(obj instanceof PDFPage)
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pdfPageList.add((PDFPage)obj);
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return obj.objser;
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}
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/**
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* <p>This returns a specific page. It's used mainly when using a
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* Serialized template file.</p>
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*
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* ?? How does a serialized template file work ???
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*
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* @param page page number to return
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* @return PDFPage at that position
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*/
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public PDFPage getPage(int page) {
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return pdfPageList.getPage(page);
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}
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/**
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* This is the info object. Although this is an optional object, we include
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* it.
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*/
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private PDFInfo info;
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/**
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* @return the root outline
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*/
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public PDFOutline getOutline()
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{
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if(outline==null) {
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outline = new PDFOutline();
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catalog.setOutline(outline);
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/**
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* This is the Pages object, which is required by each PDF Document
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*/
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private PDFPageList pdfPageList;
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/**
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* This is the Outline object, which is optional
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*/
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private PDFOutline outline;
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/**
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* This holds a PDFObject describing the default border for annotations.
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* It's only used when the document is being written.
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*/
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protected PDFObject defaultOutlineBorder;
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/**
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* <p>
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* This page mode indicates that the document should be opened just with the
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* page visible. This is the default</p>
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*/
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public static final int USENONE = 0;
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/**
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* <p>
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* This page mode indicates that the Outlines should also be displayed when
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* the document is opened.</p>
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*/
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public static final int USEOUTLINES = 1;
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/**
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* <p>
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* This page mode indicates that the Thumbnails should be visible when the
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* document first opens.</p>
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*/
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public static final int USETHUMBS = 2;
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/**
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* <p>
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* This page mode indicates that when the document is opened, it is
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* displayed in full-screen-mode. There is no menu bar, window controls nor
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* any other window present.</p>
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*/
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public static final int FULLSCREEN = 3;
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/**
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* <p>
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* These map the page modes just defined to the pagemodes setting of PDF.
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* </p>
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*/
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public static final String PDF_PAGE_MODES[] = {
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"/UseNone",
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"/UseOutlines",
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"/UseThumbs",
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"/FullScreen"
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};
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/**
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* This is used to provide a unique name for a font
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*/
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private int fontid = 0;
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/**
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* <p>
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* This is used to provide a unique name for an image</p>
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*/
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private int imageid = 0;
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/**
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* This holds the current fonts
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*/
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private Vector<PDFFont> fonts;
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/**
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* <p>
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* This creates a PDF document with the default pagemode</p>
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*/
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public PDFDocument() {
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this(USENONE);
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}
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return outline;
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}
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/**
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* This returns a font of the specified type and font. If the font has
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* not been defined, it creates a new font in the PDF document, and
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* returns it.
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*
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* @param type PDF Font Type - usually "/Type1"
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* @param font Java font name
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* @param style java.awt.Font style (NORMAL, BOLD etc)
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* @return PDFFont defining this font
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*/
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public PDFFont getFont(String type,String font,int style) {
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for(PDFFont ft : fonts) {
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if(ft.equals(type,font,style))
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/**
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* <p>
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* This creates a PDF document</p>
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*
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* @param pagemode an int, determines how the document will present itself
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* to the viewer when it first opens.
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*/
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public PDFDocument(int pagemode) {
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objser = 1;
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objects = new Vector<PDFObject>();
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fonts = new Vector<PDFFont>();
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// Now create some standard objects
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add(pdfPageList = new PDFPageList());
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add(catalog = new PDFCatalog(pdfPageList, pagemode));
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add(info = new PDFInfo());
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// Acroread on linux seems to die if there is no root outline
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add(getOutline());
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}
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/**
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* This adds a top level object to the document.
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*
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* <p>
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* Once added, it is allocated a unique serial number.
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*
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* <p>
|
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* <b>Note:</b> Not all object are added directly using this method. Some
|
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* objects which have Kids (in PDF sub-objects or children are called Kids)
|
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* will have their own add() method, which will call this one internally.
|
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*
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* @param obj The PDFObject to add to the document
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* @return the unique serial number for this object.
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*/
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public synchronized int add(PDFObject obj) {
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objects.addElement(obj);
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obj.objser = objser++; // create a new serial number
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obj.pdfDocument = this; // so they can find the document they belong to
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// If its a page, then add it to the pages collection
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if (obj instanceof PDFPage) {
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pdfPageList.add((PDFPage) obj);
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}
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return obj.objser;
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}
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|
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/**
|
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* <p>
|
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* This returns a specific page. It's used mainly when using a Serialized
|
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* template file.</p>
|
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*
|
||||
* ?? How does a serialized template file work ???
|
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*
|
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* @param page page number to return
|
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* @return PDFPage at that position
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*/
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public PDFPage getPage(int page) {
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return pdfPageList.getPage(page);
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}
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/**
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* @return the root outline
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*/
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public PDFOutline getOutline() {
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if (outline == null) {
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outline = new PDFOutline();
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catalog.setOutline(outline);
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}
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return outline;
|
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}
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|
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/**
|
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* This returns a font of the specified type and font. If the font has not
|
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* been defined, it creates a new font in the PDF document, and returns it.
|
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*
|
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* @param type PDF Font Type - usually "/Type1"
|
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* @param font Java font name
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* @param style java.awt.Font style (NORMAL, BOLD etc)
|
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* @return PDFFont defining this font
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*/
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public PDFFont getFont(String type, String font, int style) {
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for (PDFFont ft : fonts) {
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if (ft.equals(type, font, style)) {
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return ft;
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}
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}
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// the font wasn't found, so create it
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fontid++;
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PDFFont ft = new PDFFont("/F" + fontid, type, font, style);
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add(ft);
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fonts.addElement(ft);
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return ft;
|
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}
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// the font wasn't found, so create it
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fontid++;
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PDFFont ft = new PDFFont("/F"+fontid,type,font,style);
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add(ft);
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fonts.addElement(ft);
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return ft;
|
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}
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|
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public PDFFont getEmbeddedFont(String font, int style, File file) throws FileNotFoundException, IOException {
|
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for (PDFFont ft : fonts) {
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@@ -301,7 +305,6 @@ public class PDFDocument implements Serializable
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Logger.getLogger(PDFDocument.class.getName()).log(Level.SEVERE, null, ex);
|
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}
|
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PDFStream cidToGidMap = new PDFStream();
|
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cidToGidMap.getOutputStream().write(par.getCidtogidmap());
|
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cidToGidMap.setDeflate(true);
|
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@@ -378,8 +381,7 @@ public class PDFDocument implements Serializable
|
||||
if (first) {
|
||||
widths.append("" + c + " [" + w);
|
||||
first = false;
|
||||
}
|
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else if (c == prevC + 1) {
|
||||
} else if (c == prevC + 1) {
|
||||
widths.append(" " + w);
|
||||
} else {
|
||||
widths.append("]");
|
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@@ -392,67 +394,70 @@ public class PDFDocument implements Serializable
|
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}
|
||||
return "/W [" + widths.toString() + " ]";
|
||||
}
|
||||
/**
|
||||
* Sets a unique name to a PDFImage
|
||||
* @param img PDFImage to set the name of
|
||||
* @return the name given to the image
|
||||
*/
|
||||
public String setImageName(PDFImage img) {
|
||||
imageid++;
|
||||
img.setName("/Image"+imageid);
|
||||
return img.getName();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <p>Set the PDFInfo object, which contains author, title,
|
||||
* keywords, etc</p>
|
||||
* @param info a PDFInof object
|
||||
*/
|
||||
public void setPDFInfo(PDFInfo info) {
|
||||
this.info = info;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <p>Get the PDFInfo object, which contains author, title, keywords,
|
||||
* etc</p>
|
||||
* @return the PDFInfo object for this document.
|
||||
*/
|
||||
public PDFInfo getPDFInfo() {
|
||||
return this.info;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* This writes the document to an OutputStream.
|
||||
*
|
||||
* <p><b>Note:</b> You can call this as many times as you wish, as long as
|
||||
* the calls are not running at the same time.
|
||||
*
|
||||
* <p>Also, objects can be added or amended between these calls.
|
||||
*
|
||||
* <p>Also, the OutputStream is not closed, but will be flushed on
|
||||
* completion. It is up to the caller to close the stream.
|
||||
*
|
||||
* @param os OutputStream to write the document to
|
||||
* @exception IOException on error
|
||||
*/
|
||||
public void write(OutputStream os) throws IOException
|
||||
{
|
||||
PDFOutput pos = new PDFOutput(os);
|
||||
|
||||
// Write each object to the OutputStream. We call via the output
|
||||
// as that builds the xref table
|
||||
for(PDFObject o : objects) {
|
||||
pos.write(o);
|
||||
/**
|
||||
* Sets a unique name to a PDFImage
|
||||
*
|
||||
* @param img PDFImage to set the name of
|
||||
* @return the name given to the image
|
||||
*/
|
||||
public String setImageName(PDFImage img) {
|
||||
imageid++;
|
||||
img.setName("/Image" + imageid);
|
||||
return img.getName();
|
||||
}
|
||||
|
||||
// Finally close the output, which writes the xref table.
|
||||
pos.close();
|
||||
|
||||
// and flush the output stream to ensure everything is written.
|
||||
os.flush();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* <p>
|
||||
* Set the PDFInfo object, which contains author, title, keywords, etc</p>
|
||||
*
|
||||
* @param info a PDFInof object
|
||||
*/
|
||||
public void setPDFInfo(PDFInfo info) {
|
||||
this.info = info;
|
||||
}
|
||||
|
||||
/**
|
||||
* <p>
|
||||
* Get the PDFInfo object, which contains author, title, keywords, etc</p>
|
||||
*
|
||||
* @return the PDFInfo object for this document.
|
||||
*/
|
||||
public PDFInfo getPDFInfo() {
|
||||
return this.info;
|
||||
}
|
||||
|
||||
/**
|
||||
* This writes the document to an OutputStream.
|
||||
*
|
||||
* <p>
|
||||
* <b>Note:</b> You can call this as many times as you wish, as long as the
|
||||
* calls are not running at the same time.
|
||||
*
|
||||
* <p>
|
||||
* Also, objects can be added or amended between these calls.
|
||||
*
|
||||
* <p>
|
||||
* Also, the OutputStream is not closed, but will be flushed on completion.
|
||||
* It is up to the caller to close the stream.
|
||||
*
|
||||
* @param os OutputStream to write the document to
|
||||
* @exception IOException on error
|
||||
*/
|
||||
public void write(OutputStream os) throws IOException {
|
||||
PDFOutput pos = new PDFOutput(os);
|
||||
|
||||
// Write each object to the OutputStream. We call via the output
|
||||
// as that builds the xref table
|
||||
for (PDFObject o : objects) {
|
||||
pos.write(o);
|
||||
}
|
||||
|
||||
// Finally close the output, which writes the xref table.
|
||||
pos.close();
|
||||
|
||||
// and flush the output stream to ensure everything is written.
|
||||
os.flush();
|
||||
}
|
||||
|
||||
} // end class PDFDocument
|
||||
|
||||
Reference in New Issue
Block a user