123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365 |
- /*
- * $Id: PDFRenderer.java,v 1.137 2003/03/05 20:38:27 jeremias Exp $
- * ============================================================================
- * The Apache Software License, Version 1.1
- * ============================================================================
- *
- * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. The end-user documentation included with the redistribution, if any, must
- * include the following acknowledgment: "This product includes software
- * developed by the Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself, if
- * and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "FOP" and "Apache Software Foundation" must not be used to
- * endorse or promote products derived from this software without prior
- * written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache", nor may
- * "Apache" appear in their name, without prior written permission of the
- * Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
- * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * ============================================================================
- *
- * This software consists of voluntary contributions made by many individuals
- * on behalf of the Apache Software Foundation and was originally created by
- * James Tauber <jtauber@jtauber.com>. For more information on the Apache
- * Software Foundation, please see <http://www.apache.org/>.
- */
- package org.apache.fop.render.pdf;
-
- // Java
- import java.io.IOException;
- import java.io.OutputStream;
- import java.awt.Color;
- import java.awt.geom.Rectangle2D;
- import java.awt.geom.AffineTransform;
- import java.util.Map;
- import java.util.List;
-
- // XML
- import org.w3c.dom.Document;
-
- // Avalon
- import org.apache.avalon.framework.configuration.Configuration;
- import org.apache.avalon.framework.configuration.ConfigurationException;
-
- // FOP
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.apps.Version;
- import org.apache.fop.area.Area;
- import org.apache.fop.area.Block;
- import org.apache.fop.area.BlockViewport;
- import org.apache.fop.area.CTM;
- import org.apache.fop.area.LineArea;
- import org.apache.fop.area.Page;
- import org.apache.fop.area.PageViewport;
- import org.apache.fop.area.RegionViewport;
- import org.apache.fop.area.Title;
- import org.apache.fop.area.Trait;
- import org.apache.fop.area.TreeExt;
- import org.apache.fop.area.extensions.BookmarkData;
- import org.apache.fop.area.inline.Character;
- import org.apache.fop.area.inline.TextArea;
- import org.apache.fop.area.inline.Viewport;
- import org.apache.fop.area.inline.ForeignObject;
- import org.apache.fop.area.inline.Image;
- import org.apache.fop.area.inline.Leader;
- import org.apache.fop.area.inline.InlineParent;
- import org.apache.fop.datatypes.ColorType;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.fonts.Font;
- import org.apache.fop.fonts.FontSetup;
- import org.apache.fop.fonts.FontMetrics;
- import org.apache.fop.image.FopImage;
- import org.apache.fop.image.ImageFactory;
- import org.apache.fop.image.XMLImage;
- import org.apache.fop.pdf.PDFAnnotList;
- import org.apache.fop.pdf.PDFColor;
- import org.apache.fop.pdf.PDFDocument;
- import org.apache.fop.pdf.PDFEncryptionManager;
- import org.apache.fop.pdf.PDFFilterList;
- import org.apache.fop.pdf.PDFInfo;
- import org.apache.fop.pdf.PDFLink;
- import org.apache.fop.pdf.PDFOutline;
- import org.apache.fop.pdf.PDFPage;
- import org.apache.fop.pdf.PDFResourceContext;
- import org.apache.fop.pdf.PDFResources;
- import org.apache.fop.pdf.PDFState;
- import org.apache.fop.pdf.PDFStream;
- import org.apache.fop.pdf.PDFText;
- import org.apache.fop.pdf.PDFXObject;
- import org.apache.fop.render.PrintRenderer;
- import org.apache.fop.render.RendererContext;
- import org.apache.fop.traits.BorderProps;
-
-
- /*
- todo:
-
- word rendering and optimistion
- pdf state optimisation
- line and border
- background pattern
- writing mode
- text decoration
-
- */
-
- /**
- * Renderer that renders areas to PDF
- *
- */
- public class PDFRenderer extends PrintRenderer {
- /**
- * The mime type for pdf
- */
- public static final String MIME_TYPE = "application/pdf";
-
- /**
- * the PDF Document being created
- */
- protected PDFDocument pdfDoc;
-
- /**
- * Map of pages using the PageViewport as the key
- * this is used for prepared pages that cannot be immediately
- * rendered
- */
- protected Map pages = null;
-
- /**
- * Page references are stored using the PageViewport as the key
- * when a reference is made the PageViewport is used
- * for pdf this means we need the pdf page reference
- */
- protected Map pageReferences = new java.util.HashMap();
- /** Page viewport references */
- protected Map pvReferences = new java.util.HashMap();
-
- /**
- * The output stream to write the document to
- */
- protected OutputStream ostream;
-
- /**
- * the /Resources object of the PDF document being created
- */
- protected PDFResources pdfResources;
-
- /**
- * the current stream to add PDF commands to
- */
- protected PDFStream currentStream;
-
- /**
- * the current annotation list to add annotations to
- */
- protected PDFResourceContext currentContext = null;
-
- /**
- * the current page to add annotations to
- */
- protected PDFPage currentPage;
-
- /** drawing state */
- protected PDFState currentState = null;
-
- /** Name of currently selected font */
- protected String currentFontName = "";
- /** Size of currently selected font */
- protected int currentFontSize = 0;
- /** page height */
- protected int pageHeight;
-
- /** Registry of PDF filters */
- protected Map filterMap;
-
- /**
- * true if a TJ command is left to be written
- */
- protected boolean textOpen = false;
-
- /**
- * the previous Y coordinate of the last word written.
- * Used to decide if we can draw the next word on the same line.
- */
- protected int prevWordY = 0;
-
- /**
- * the previous X coordinate of the last word written.
- * used to calculate how much space between two words
- */
- protected int prevWordX = 0;
-
- /**
- * The width of the previous word. Used to calculate space between
- */
- protected int prevWordWidth = 0;
-
- /**
- * reusable word area string buffer to reduce memory usage
- */
- private StringBuffer wordAreaPDF = new StringBuffer();
-
- /**
- * Offset for rendering text, taking into account borders and padding for
- * both region and block.
- */
- protected int bpMarginOffset = 0;
-
- /**
- * Offset for rendering text, taking into account borders and padding for
- * both the region and block.
- */
- protected int ipMarginOffset = 0;
-
- /**
- * create the PDF renderer
- */
- public PDFRenderer() {
- }
-
- /**
- * Configure the PDF renderer.
- * Get the configuration to be used for pdf stream filters,
- * fonts etc.
- * @see org.apache.avalon.framework.configuration.Configurable#configure(Configuration)
- */
- public void configure(Configuration cfg) throws ConfigurationException {
- //PDF filters
- this.filterMap = PDFFilterList.buildFilterMapFromConfiguration(cfg);
-
- //Font configuration
- List cfgFonts = FontSetup.buildFontListFromConfiguration(cfg);
- if (this.fontList == null) {
- this.fontList = cfgFonts;
- } else {
- this.fontList.addAll(cfgFonts);
- }
- }
-
- /**
- * @see org.apache.fop.render.Renderer#setUserAgent(FOUserAgent)
- */
- public void setUserAgent(FOUserAgent agent) {
- super.setUserAgent(agent);
- PDFXMLHandler xmlHandler = new PDFXMLHandler();
- //userAgent.setDefaultXMLHandler(MIME_TYPE, xmlHandler);
- String svg = "http://www.w3.org/2000/svg";
- addXMLHandler(userAgent, MIME_TYPE, svg, xmlHandler);
- }
-
- /**
- * @see org.apache.fop.render.Renderer#startRenderer(OutputStream)
- */
- public void startRenderer(OutputStream stream) throws IOException {
- ostream = stream;
- producer = "FOP " + Version.getVersion();
- this.pdfDoc = new PDFDocument(producer);
- setupLogger(this.pdfDoc);
- this.pdfDoc.setCreator(creator);
- this.pdfDoc.setCreationDate(creationDate);
- this.pdfDoc.setFilterMap(filterMap);
- this.pdfDoc.outputHeader(stream);
-
- //Setup encryption if necessary
- PDFEncryptionManager.setupPDFEncryption(userAgent, this.pdfDoc, getLogger());
- }
-
- /**
- * @see org.apache.fop.render.Renderer#stopRenderer()
- */
- public void stopRenderer() throws IOException {
- pdfDoc.getResources().addFonts(pdfDoc,
- (org.apache.fop.apps.Document) fontInfo);
- pdfDoc.outputTrailer(ostream);
-
- this.pdfDoc = null;
- ostream = null;
-
- pages = null;
-
- pageReferences.clear();
- pvReferences.clear();
- pdfResources = null;
- currentStream = null;
- currentContext = null;
- currentPage = null;
- currentState = null;
- currentFontName = "";
- wordAreaPDF = new StringBuffer();
- }
-
- /**
- * @see org.apache.fop.render.Renderer#supportsOutOfOrder()
- */
- public boolean supportsOutOfOrder() {
- return true;
- }
-
- /**
- * @see org.apache.fop.render.Renderer#renderExtension(TreeExt)
- */
- public void renderExtension(TreeExt ext) {
- // render bookmark extension
- if (ext instanceof BookmarkData) {
- renderRootExtensions((BookmarkData)ext);
- }
- }
-
- /**
- * Renders the root extension elements
- * @param bookmarks the bookmarks to render
- */
- protected void renderRootExtensions(BookmarkData bookmarks) {
- for (int i = 0; i < bookmarks.getCount(); i++) {
- BookmarkData ext = bookmarks.getSubData(i);
- renderOutline(ext, null);
- }
- }
-
- private void renderOutline(BookmarkData outline, PDFOutline parentOutline) {
- PDFOutline outlineRoot = pdfDoc.getOutlineRoot();
- PDFOutline pdfOutline = null;
- PageViewport pv = outline.getPage();
- if (pv != null) {
- Rectangle2D bounds = pv.getViewArea();
- double h = bounds.getHeight();
- float yoffset = (float)h / 1000f;
- String intDest = (String)pageReferences.get(pv.getKey());
- if (parentOutline == null) {
- pdfOutline = pdfDoc.getFactory().makeOutline(outlineRoot,
- outline.getLabel(), intDest, yoffset);
- } else {
- PDFOutline pdfParentOutline = parentOutline;
- pdfOutline = pdfDoc.getFactory().makeOutline(pdfParentOutline,
- outline.getLabel(), intDest, yoffset);
- }
- }
-
- for (int i = 0; i < outline.getCount(); i++) {
- renderOutline(outline.getSubData(i), pdfOutline);
- }
- }
-
- /** Saves the graphics state of the rendering engine. */
- protected void saveGraphicsState() {
- currentStream.add("q\n");
- }
-
- /** Restores the last graphics state of the rendering engine. */
- protected void restoreGraphicsState() {
- currentStream.add("Q\n");
- }
-
- /** Indicates the beginning of a text object. */
- protected void beginTextObject() {
- currentStream.add("BT\n");
- }
-
- /** Indicates the end of a text object. */
- protected void endTextObject() {
- currentStream.add("ET\n");
- }
-
- /**
- * Start the next page sequence.
- * For the pdf renderer there is no concept of page sequences
- * but it uses the first available page sequence title to set
- * as the title of the pdf document.
- *
- * @param seqTitle the title of the page sequence
- */
- public void startPageSequence(Title seqTitle) {
- if (seqTitle != null) {
- String str = convertTitleToString(seqTitle);
- PDFInfo info = this.pdfDoc.getInfo();
- info.setTitle(str);
- }
- }
-
- /**
- * The pdf page is prepared by making the page.
- * The page is made in the pdf document without any contents
- * and then stored to add the contents later.
- * The page objects is stored using the area tree PageViewport
- * as a key.
- *
- * @param page the page to prepare
- */
- public void preparePage(PageViewport page) {
- this.pdfResources = this.pdfDoc.getResources();
-
- Rectangle2D bounds = page.getViewArea();
- double w = bounds.getWidth();
- double h = bounds.getHeight();
- currentPage = this.pdfDoc.getFactory().makePage(
- this.pdfResources,
- (int) Math.round(w / 1000), (int) Math.round(h / 1000));
- if (pages == null) {
- pages = new java.util.HashMap();
- }
- pages.put(page, currentPage);
- pageReferences.put(page.getKey(), currentPage.referencePDF());
- pvReferences.put(page.getKey(), page);
- }
-
- /**
- * This method creates a pdf stream for the current page
- * uses it as the contents of a new page. The page is written
- * immediately to the output stream.
- * @see org.apache.fop.render.Renderer#renderPage(PageViewport)
- */
- public void renderPage(PageViewport page)
- throws IOException, FOPException {
- if (pages != null
- && (currentPage = (PDFPage) pages.get(page)) != null) {
- pages.remove(page);
- Rectangle2D bounds = page.getViewArea();
- double h = bounds.getHeight();
- pageHeight = (int) h;
- } else {
- this.pdfResources = this.pdfDoc.getResources();
- Rectangle2D bounds = page.getViewArea();
- double w = bounds.getWidth();
- double h = bounds.getHeight();
- pageHeight = (int) h;
- currentPage = this.pdfDoc.getFactory().makePage(
- this.pdfResources,
- (int) Math.round(w / 1000), (int) Math.round(h / 1000));
- pageReferences.put(page.getKey(), currentPage.referencePDF());
- pvReferences.put(page.getKey(), page);
- }
- currentStream = this.pdfDoc.getFactory()
- .makeStream(PDFFilterList.CONTENT_FILTER, false);
-
- currentState = new PDFState();
- currentState.setTransform(new AffineTransform(1, 0, 0, -1, 0,
- (int) Math.round(pageHeight / 1000)));
- // Transform origin at top left to origin at bottom left
- currentStream.add("1 0 0 -1 0 "
- + (int) Math.round(pageHeight / 1000) + " cm\n");
- currentFontName = "";
-
- Page p = page.getPage();
- renderPageAreas(p);
-
- this.pdfDoc.registerObject(currentStream);
- currentPage.setContents(currentStream);
- PDFAnnotList annots = currentPage.getAnnotations();
- if (annots != null) {
- this.pdfDoc.addObject(annots);
- }
- this.pdfDoc.addObject(currentPage);
- this.pdfDoc.output(ostream);
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#startVParea(CTM)
- */
- protected void startVParea(CTM ctm) {
- // Set the given CTM in the graphics state
- currentState.push();
- currentState.setTransform(
- new AffineTransform(CTMHelper.toPDFArray(ctm)));
-
- saveGraphicsState();
- // multiply with current CTM
- currentStream.add(CTMHelper.toPDFString(ctm) + " cm\n");
- // Set clip?
- beginTextObject();
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#endVParea()
- */
- protected void endVParea() {
- endTextObject();
- restoreGraphicsState();
- currentState.pop();
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#renderBlocks(Block, List)
- */
- protected void renderBlocks(Block block, List blocks) {
- int saveIPMargin = ipMarginOffset;
- int saveBPMargin = bpMarginOffset;
- if (block != null) {
- Integer spaceStart = (Integer) block.getTrait(Trait.SPACE_START);
- if (spaceStart != null) {
- ipMarginOffset += spaceStart.intValue();
- }
-
- Integer paddingStart = (Integer) block.getTrait(Trait.PADDING_START);
- if (paddingStart != null) {
- ipMarginOffset += paddingStart.intValue();
- }
- Integer paddingBefore = (Integer) block.getTrait(Trait.PADDING_BEFORE);
- if (paddingBefore != null) {
- bpMarginOffset += paddingBefore.intValue();
- }
-
- BorderProps borderStartWidth = (BorderProps) block.getTrait(Trait.BORDER_START);
- if (borderStartWidth != null) {
- ipMarginOffset += borderStartWidth.width;
- }
- BorderProps borderBeforeWidth = (BorderProps) block.getTrait(Trait.BORDER_BEFORE);
- if (borderBeforeWidth != null) {
- bpMarginOffset += borderBeforeWidth.width;
- }
- }
- super.renderBlocks(block, blocks);
- ipMarginOffset = saveIPMargin;
- bpMarginOffset = saveBPMargin;
- }
-
- /**
- * Handle the traits for a region
- * This is used to draw the traits for the given page region.
- * (See Sect. 6.4.1.2 of XSL-FO spec.)
- * @param region the RegionViewport whose region is to be drawn
- */
- protected void handleRegionTraits(RegionViewport region) {
- currentFontName = "";
- Rectangle2D viewArea = region.getViewArea();
- float startx = (float)(viewArea.getX() / 1000f);
- float starty = (float)(viewArea.getY() / 1000f);;
- float width = (float)(viewArea.getWidth() / 1000f);
- float height = (float)(viewArea.getHeight() / 1000f);
-
- if (region.getRegion().getRegionClass()
- == org.apache.fop.fo.pagination.Region.BODY_CODE) {
- bpMarginOffset = region.getBorderAndPaddingWidthBefore();
- ipMarginOffset = region.getBorderAndPaddingWidthStart();
- }
- beginTextObject();
- drawBackAndBorders(region, startx, starty, width, height);
- endTextObject();
- }
-
- /**
- * Handle block traits.
- * The block could be any sort of block with any positioning
- * so this should render the traits such as border and background
- * in its position.
- *
- * @param block the block to render the traits
- */
- protected void handleBlockTraits(Block block) {
- /* ipMarginOffset for a particular block = region border +
- * region padding + parent block padding + current block padding
- */
-
- float startx = (currentIPPosition + ipMarginOffset) / 1000f;
- float starty = (currentBPPosition + bpMarginOffset) / 1000f;
- float width = block.getWidth() / 1000f;
-
- Integer spaceStart = (Integer) block.getTrait(Trait.SPACE_START);
- if (spaceStart != null) {
- startx += spaceStart.floatValue() / 1000;
- width -= spaceStart.floatValue() / 1000;
- }
- Integer spaceEnd = (Integer) block.getTrait(Trait.SPACE_END);
- if (spaceEnd != null) {
- width -= spaceEnd.floatValue() / 1000;
- }
-
- drawBackAndBorders(block, startx, starty,
- width, block.getHeight() / 1000f);
- }
-
- /**
- * Draw the background and borders.
- * This draws the background and border traits for an area given
- * the position.
- *
- * @param block the area to get the traits from
- * @param startx the start x position
- * @param starty the start y position
- * @param width the width of the area
- * @param height the height of the area
- */
- protected void drawBackAndBorders(Area block,
- float startx, float starty,
- float width, float height) {
- // draw background then border
-
- boolean started = false;
- Trait.Background back;
- back = (Trait.Background)block.getTrait(Trait.BACKGROUND);
- if (back != null) {
- started = true;
- closeText();
- endTextObject();
- //saveGraphicsState();
-
- if (back.getColor() != null) {
- updateColor(back.getColor(), true, null);
- currentStream.add(startx + " " + starty + " "
- + width + " " + height + " re\n");
- currentStream.add("f\n");
- }
- if (back.getURL() != null) {
- ImageFactory fact = ImageFactory.getInstance();
- FopImage fopimage = fact.getImage(back.getURL(), userAgent);
- if (fopimage != null && fopimage.load(FopImage.DIMENSIONS, userAgent.getLogger())) {
- if (back.getRepeat() == BackgroundRepeat.REPEAT) {
- // create a pattern for the image
- } else {
- // place once
- Rectangle2D pos;
- pos = new Rectangle2D.Float((startx + back.getHoriz()) * 1000,
- (starty + back.getVertical()) * 1000,
- fopimage.getWidth() * 1000,
- fopimage.getHeight() * 1000);
- putImage(back.getURL(), pos);
- }
- }
- }
- }
-
- BorderProps bps = (BorderProps)block.getTrait(Trait.BORDER_BEFORE);
- if (bps != null) {
- float endx = startx + width;
-
- if (!started) {
- started = true;
- closeText();
- endTextObject();
- //saveGraphicsState();
- }
-
- float bwidth = bps.width / 1000f;
- updateColor(bps.color, true, null);
- currentStream.add(startx + " " + starty + " "
- + width + " " + bwidth + " re\n");
- currentStream.add("f\n");
- }
- bps = (BorderProps)block.getTrait(Trait.BORDER_AFTER);
- if (bps != null) {
- if (!started) {
- started = true;
- closeText();
- endTextObject();
- //saveGraphicsState();
- }
-
- float bwidth = bps.width / 1000f;
- updateColor(bps.color, true, null);
- currentStream.add(startx + " " + (starty + height - bwidth) + " "
- + width + " " + bwidth + " re\n");
- currentStream.add("f\n");
- }
- bps = (BorderProps)block.getTrait(Trait.BORDER_START);
- if (bps != null) {
- if (!started) {
- started = true;
- closeText();
- endTextObject();
- //saveGraphicsState();
- }
-
- float bwidth = bps.width / 1000f;
- updateColor(bps.color, true, null);
- currentStream.add(startx + " " + starty + " "
- + bwidth + " " + height + " re\n");
- currentStream.add("f\n");
- }
- bps = (BorderProps)block.getTrait(Trait.BORDER_END);
- if (bps != null) {
- if (!started) {
- started = true;
- closeText();
- endTextObject();
- //saveGraphicsState();
- }
-
- float bwidth = bps.width / 1000f;
- updateColor(bps.color, true, null);
- currentStream.add((startx + width - bwidth) + " " + starty + " "
- + bwidth + " " + height + " re\n");
- currentStream.add("f\n");
- }
- if (started) {
- //restoreGraphicsState();
- beginTextObject();
- // font last set out of scope in text section
- currentFontName = "";
- }
- }
-
- /**
- * Draw a line.
- *
- * @param startx the start x position
- * @param starty the start y position
- * @param endx the x end position
- * @param endy the y end position
- */
- private void drawLine(float startx, float starty, float endx, float endy) {
- currentStream.add(startx + " " + starty + " m\n");
- currentStream.add(endx + " " + endy + " l\n");
- currentStream.add("S\n");
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#renderBlockViewport(BlockViewport, List)
- */
- protected void renderBlockViewport(BlockViewport bv, List children) {
- // clip and position viewport if necessary
-
- // save positions
- int saveIP = currentIPPosition;
- int saveBP = currentBPPosition;
- String saveFontName = currentFontName;
-
- CTM ctm = bv.getCTM();
-
- if (bv.getPositioning() == Block.ABSOLUTE) {
-
- currentIPPosition = 0;
- currentBPPosition = 0;
-
- closeText();
- endTextObject();
-
- if (bv.getClip()) {
- saveGraphicsState();
- float x = (float)(bv.getXOffset() + containingIPPosition) / 1000f;
- float y = (float)(bv.getYOffset() + containingBPPosition) / 1000f;
- float width = (float)bv.getWidth() / 1000f;
- float height = (float)bv.getHeight() / 1000f;
- clip(x, y, width, height);
- }
-
- CTM tempctm = new CTM(containingIPPosition, containingBPPosition);
- ctm = tempctm.multiply(ctm);
-
- startVParea(ctm);
- handleBlockTraits(bv);
- renderBlocks(bv, children);
- endVParea();
-
- if (bv.getClip()) {
- restoreGraphicsState();
- }
- beginTextObject();
-
- // clip if necessary
-
- currentIPPosition = saveIP;
- currentBPPosition = saveBP;
- } else {
-
- if (ctm != null) {
- currentIPPosition = 0;
- currentBPPosition = 0;
-
- closeText();
- endTextObject();
-
- double[] vals = ctm.toArray();
- //boolean aclock = vals[2] == 1.0;
- if (vals[2] == 1.0) {
- ctm = ctm.translate(-saveBP - bv.getHeight(), -saveIP);
- } else if (vals[0] == -1.0) {
- ctm = ctm.translate(-saveIP - bv.getWidth(), -saveBP - bv.getHeight());
- } else {
- ctm = ctm.translate(saveBP, saveIP - bv.getWidth());
- }
- }
-
- // clip if necessary
- if (bv.getClip()) {
- if (ctm == null) {
- closeText();
- endTextObject();
- }
- saveGraphicsState();
- float x = (float)bv.getXOffset() / 1000f;
- float y = (float)bv.getYOffset() / 1000f;
- float width = (float)bv.getWidth() / 1000f;
- float height = (float)bv.getHeight() / 1000f;
- clip(x, y, width, height);
- }
-
- if (ctm != null) {
- startVParea(ctm);
- }
- handleBlockTraits(bv);
- renderBlocks(bv, children);
- if (ctm != null) {
- endVParea();
- }
-
- if (bv.getClip()) {
- restoreGraphicsState();
- if (ctm == null) {
- beginTextObject();
- }
- }
- if (ctm != null) {
- beginTextObject();
- }
-
- currentIPPosition = saveIP;
- currentBPPosition = saveBP;
- currentBPPosition += (int)(bv.getHeight());
- }
- currentFontName = saveFontName;
- }
-
- /**
- * Clip an area.
- * write a clipping operation given coordinates in the current
- * transform.
- * @param x the x coordinate
- * @param y the y coordinate
- * @param width the width of the area
- * @param height the height of the area
- */
- protected void clip(float x, float y, float width, float height) {
- currentStream.add(x + " " + y + " m\n");
- currentStream.add((x + width) + " " + y + " l\n");
- currentStream.add((x + width) + " " + (y + height) + " l\n");
- currentStream.add(x + " " + (y + height) + " l\n");
- currentStream.add("h\n");
- currentStream.add("W\n");
- currentStream.add("n\n");
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#renderLineArea(LineArea)
- */
- protected void renderLineArea(LineArea line) {
- super.renderLineArea(line);
- closeText();
- }
-
- /**
- * Render inline parent area.
- * For pdf this handles the inline parent area traits such as
- * links, border, background.
- * @param ip the inline parent area
- */
- public void renderInlineParent(InlineParent ip) {
- float start = (currentBlockIPPosition + ipMarginOffset) / 1000f;
- float top = (ip.getOffset() + currentBPPosition + bpMarginOffset) / 1000f;
- float width = ip.getWidth() / 1000f;
- float height = ip.getHeight() / 1000f;
- drawBackAndBorders(ip, start, top, width, height);
-
- // render contents
- super.renderInlineParent(ip);
-
- // place the link over the top
- Object tr = ip.getTrait(Trait.INTERNAL_LINK);
- boolean internal = false;
- String dest = null;
- float yoffset = 0;
- if (tr == null) {
- dest = (String)ip.getTrait(Trait.EXTERNAL_LINK);
- } else {
- String pvKey = (String)tr;
- dest = (String)pageReferences.get(pvKey);
- if (dest != null) {
- PageViewport pv = (PageViewport)pvReferences.get(pvKey);
- Rectangle2D bounds = pv.getViewArea();
- double h = bounds.getHeight();
- yoffset = (float)h / 1000f;
- internal = true;
- }
- }
- if (dest != null) {
- // add link to pdf document
- Rectangle2D rect = new Rectangle2D.Float(start, top, width, height);
- // transform rect to absolute coords
- AffineTransform transform = currentState.getTransform();
- rect = transform.createTransformedShape(rect).getBounds();
-
- int type = internal ? PDFLink.INTERNAL : PDFLink.EXTERNAL;
- PDFLink pdflink = pdfDoc.getFactory().makeLink(
- rect, dest, type, yoffset);
- currentPage.addAnnotation(pdflink);
- }
- }
-
- /**
- * @see org.apache.fop.render.Renderer#renderCharacter(Character)
- */
- public void renderCharacter(Character ch) {
- super.renderCharacter(ch);
- }
-
- /**
- * @see org.apache.fop.render.Renderer#renderText(TextArea)
- */
- public void renderText(TextArea text) {
- StringBuffer pdf = new StringBuffer();
-
- String name = (String) text.getTrait(Trait.FONT_NAME);
- int size = ((Integer) text.getTrait(Trait.FONT_SIZE)).intValue();
-
- // This assumes that *all* CIDFonts use a /ToUnicode mapping
- Typeface f = (Typeface) fontInfo.getFonts().get(name);
- boolean useMultiByte = f.isMultiByte();
-
- // String startText = useMultiByte ? "<FEFF" : "(";
- String startText = useMultiByte ? "<" : "(";
- String endText = useMultiByte ? "> " : ") ";
-
- updateFont(name, size, pdf);
- ColorType ct = (ColorType) text.getTrait(Trait.COLOR);
- if (ct != null) {
- updateColor(ct, true, pdf);
- }
-
- // word.getOffset() = only height of text itself
- // currentBlockIPPosition: 0 for beginning of line; nonzero
- // where previous line area failed to take up entire allocated space
- int rx = currentBlockIPPosition + ipMarginOffset;
- int bl = currentBPPosition + bpMarginOffset + text.getOffset();
- /*
- System.out.println("\nBlockIP Position: " + currentBlockIPPosition +
- "; currentBPPosition: " + currentBPPosition +
- "; offset: " + text.getOffset() +
- "; Text = " + text.getTextArea());
- */
- // Set letterSpacing
- //float ls = fs.getLetterSpacing() / this.currentFontSize;
- //pdf.append(ls).append(" Tc\n");
-
- if (!textOpen || bl != prevWordY) {
- closeText();
-
- pdf.append("1 0 0 -1 " + (rx / 1000f) + " "
- + (bl / 1000f) + " Tm [" + startText);
- prevWordY = bl;
- textOpen = true;
- } else {
- // express the space between words in thousandths of an em
- int space = prevWordX - rx + prevWordWidth;
- float emDiff = (float) space / (float) currentFontSize * 1000f;
- // this prevents a problem in Acrobat Reader and other viewers
- // where large numbers cause text to disappear or default to
- // a limit
- if (emDiff < -33000) {
- closeText();
-
- pdf.append("1 0 0 1 " + (rx / 1000f) + " "
- + (bl / 1000f) + " Tm [" + startText);
- textOpen = true;
- } else {
- pdf.append(Float.toString(emDiff));
- pdf.append(" ");
- pdf.append(startText);
- }
- }
- prevWordWidth = text.getWidth();
- prevWordX = rx;
-
- String s = text.getTextArea();
-
- FontMetrics metrics = fontInfo.getMetricsFor(name);
- Font fs = new Font(name, metrics, size);
- escapeText(s, fs, useMultiByte, pdf);
- pdf.append(endText);
-
- currentStream.add(pdf.toString());
-
- super.renderText(text);
- }
-
- /**
- * Escapes text according to PDF rules.
- * @param s Text to escape
- * @param fs Font state
- * @param useMultiByte Indicates the use of multi byte convention
- * @param pdf target buffer for the escaped text
- */
- public void escapeText(String s, Font fs,
- boolean useMultiByte, StringBuffer pdf) {
- String startText = useMultiByte ? "<" : "(";
- String endText = useMultiByte ? "> " : ") ";
-
- boolean kerningAvailable = false;
- Map kerning = fs.getKerning();
- if (kerning != null && !kerning.isEmpty()) {
- kerningAvailable = true;
- }
-
- int l = s.length();
-
- for (int i = 0; i < l; i++) {
- char ch = fs.mapChar(s.charAt(i));
-
- if (!useMultiByte) {
- if (ch > 127) {
- pdf.append("\\");
- pdf.append(Integer.toOctalString((int) ch));
- } else {
- switch (ch) {
- case '(':
- case ')':
- case '\\':
- pdf.append("\\");
- break;
- }
- pdf.append(ch);
- }
- } else {
- pdf.append(PDFText.toUnicodeHex(ch));
- }
-
- if (kerningAvailable && (i + 1) < l) {
- addKerning(pdf, (new Integer((int) ch)),
- (new Integer((int) fs.mapChar(s.charAt(i + 1)))
- ), kerning, startText, endText);
- }
- }
- }
-
- private void addKerning(StringBuffer buf, Integer ch1, Integer ch2,
- Map kerning, String startText, String endText) {
- Map kernPair = (Map) kerning.get(ch1);
-
- if (kernPair != null) {
- Integer width = (Integer) kernPair.get(ch2);
- if (width != null) {
- buf.append(endText).append(-width.intValue());
- buf.append(' ').append(startText);
- }
- }
- }
-
- /**
- * Checks to see if we have some text rendering commands open
- * still and writes out the TJ command to the stream if we do
- */
- protected void closeText() {
- if (textOpen) {
- currentStream.add("] TJ\n");
- textOpen = false;
- prevWordX = 0;
- prevWordY = 0;
- }
- }
-
- private void updateColor(ColorType col, boolean fill, StringBuffer pdf) {
- Color newCol = new Color(col.getRed(), col.getGreen(), col.getBlue());
- boolean update = false;
- if (fill) {
- update = currentState.setBackColor(newCol);
- } else {
- update = currentState.setColor(newCol);
- }
-
- if (update) {
- PDFColor color = new PDFColor((double)col.getRed(),
- (double)col.getGreen(),
- (double)col.getBlue());
-
- closeText();
-
- if (pdf != null) {
- pdf.append(color.getColorSpaceOut(fill));
- } else {
- currentStream.add(color.getColorSpaceOut(fill));
- }
- }
- }
-
- private void updateFont(String name, int size, StringBuffer pdf) {
- if ((!name.equals(this.currentFontName))
- || (size != this.currentFontSize)) {
- closeText();
-
- this.currentFontName = name;
- this.currentFontSize = size;
- pdf = pdf.append("/" + name + " " + ((float) size / 1000f)
- + " Tf\n");
- }
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#renderImage(Image, Rectangle2D)
- */
- public void renderImage(Image image, Rectangle2D pos) {
- String url = image.getURL();
- putImage(url, pos);
- }
-
- /**
- * Adds a PDF XObject (a bitmap) to the PDF that will later be referenced.
- * @param url URL of the bitmap
- * @param pos Position of the bitmap
- */
- protected void putImage(String url, Rectangle2D pos) {
- PDFXObject xobject = pdfDoc.getImage(url);
- if (xobject != null) {
- int w = (int) pos.getWidth() / 1000;
- int h = (int) pos.getHeight() / 1000;
- placeImage((int) pos.getX() / 1000,
- (int) pos.getY() / 1000, w, h, xobject.getXNumber());
- return;
- }
-
- ImageFactory fact = ImageFactory.getInstance();
- FopImage fopimage = fact.getImage(url, userAgent);
- if (fopimage == null) {
- return;
- }
- if (!fopimage.load(FopImage.DIMENSIONS, userAgent.getLogger())) {
- return;
- }
- String mime = fopimage.getMimeType();
- if ("text/xml".equals(mime)) {
- if (!fopimage.load(FopImage.ORIGINAL_DATA, userAgent.getLogger())) {
- return;
- }
- Document doc = ((XMLImage) fopimage).getDocument();
- String ns = ((XMLImage) fopimage).getNameSpace();
-
- renderDocument(doc, ns, pos);
- } else if ("image/svg+xml".equals(mime)) {
- if (!fopimage.load(FopImage.ORIGINAL_DATA, userAgent.getLogger())) {
- return;
- }
- Document doc = ((XMLImage) fopimage).getDocument();
- String ns = ((XMLImage) fopimage).getNameSpace();
-
- renderDocument(doc, ns, pos);
- } else if ("image/eps".equals(mime)) {
- if (!fopimage.load(FopImage.ORIGINAL_DATA, userAgent.getLogger())) {
- return;
- }
- FopPDFImage pdfimage = new FopPDFImage(fopimage, url);
- int xobj = pdfDoc.addImage(currentContext, pdfimage).getXNumber();
- fact.releaseImage(url, userAgent);
- } else if ("image/jpeg".equals(mime)) {
- if (!fopimage.load(FopImage.ORIGINAL_DATA, userAgent.getLogger())) {
- return;
- }
- FopPDFImage pdfimage = new FopPDFImage(fopimage, url);
- int xobj = pdfDoc.addImage(currentContext, pdfimage).getXNumber();
- fact.releaseImage(url, userAgent);
-
- int w = (int) pos.getWidth() / 1000;
- int h = (int) pos.getHeight() / 1000;
- placeImage((int) pos.getX() / 1000,
- (int) pos.getY() / 1000, w, h, xobj);
- } else {
- if (!fopimage.load(FopImage.BITMAP, userAgent.getLogger())) {
- return;
- }
- FopPDFImage pdfimage = new FopPDFImage(fopimage, url);
- int xobj = pdfDoc.addImage(currentContext, pdfimage).getXNumber();
- fact.releaseImage(url, userAgent);
-
- int w = (int) pos.getWidth() / 1000;
- int h = (int) pos.getHeight() / 1000;
- placeImage((int) pos.getX() / 1000,
- (int) pos.getY() / 1000, w, h, xobj);
- }
-
- // output new data
- try {
- this.pdfDoc.output(ostream);
- } catch (IOException ioe) {
- // ioexception will be caught later
- }
- }
-
- /**
- * Places a previously registered image at a certain place on the page.
- * @param x X coordinate
- * @param y Y coordinate
- * @param w width for image
- * @param h height for image
- * @param xobj object number of the referenced image
- */
- protected void placeImage(int x, int y, int w, int h, int xobj) {
- saveGraphicsState();
- currentStream.add(((float) w) + " 0 0 "
- + ((float) -h) + " "
- + (((float) currentBlockIPPosition + ipMarginOffset) / 1000f + x) + " "
- + (((float)(currentBPPosition + bpMarginOffset + 1000 * h)) / 1000f
- + y) + " cm\n" + "/Im" + xobj + " Do\n");
- restoreGraphicsState();
- }
-
- /**
- * @see org.apache.fop.render.AbstractRenderer#renderForeignObject(ForeignObject, Rectangle2D)
- */
- public void renderForeignObject(ForeignObject fo, Rectangle2D pos) {
- Document doc = fo.getDocument();
- String ns = fo.getNameSpace();
- renderDocument(doc, ns, pos);
- }
-
- /**
- * Renders an XML document (SVG for example).
- * @param doc DOM document representing the XML document
- * @param ns Namespace for the document
- * @param pos Position on the page
- */
- public void renderDocument(Document doc, String ns, Rectangle2D pos) {
- RendererContext context;
- context = new RendererContext(MIME_TYPE);
- context.setUserAgent(userAgent);
-
- context.setProperty(PDFXMLHandler.PDF_DOCUMENT, pdfDoc);
- context.setProperty(PDFXMLHandler.OUTPUT_STREAM, ostream);
- context.setProperty(PDFXMLHandler.PDF_STATE, currentState);
- context.setProperty(PDFXMLHandler.PDF_PAGE, currentPage);
- context.setProperty(PDFXMLHandler.PDF_CONTEXT,
- currentContext == null ? currentPage : currentContext);
- context.setProperty(PDFXMLHandler.PDF_CONTEXT, currentContext);
- context.setProperty(PDFXMLHandler.PDF_STREAM, currentStream);
- context.setProperty(PDFXMLHandler.PDF_XPOS,
- new Integer(currentBlockIPPosition + (int) pos.getX()));
- context.setProperty(PDFXMLHandler.PDF_YPOS,
- new Integer(currentBPPosition + (int) pos.getY()));
- context.setProperty(PDFXMLHandler.PDF_FONT_INFO, fontInfo);
- context.setProperty(PDFXMLHandler.PDF_FONT_NAME, currentFontName);
- context.setProperty(PDFXMLHandler.PDF_FONT_SIZE,
- new Integer(currentFontSize));
- context.setProperty(PDFXMLHandler.PDF_WIDTH,
- new Integer((int) pos.getWidth()));
- context.setProperty(PDFXMLHandler.PDF_HEIGHT,
- new Integer((int) pos.getHeight()));
- renderXML(userAgent, context, doc, ns);
-
- }
-
- /**
- * Render an inline viewport.
- * This renders an inline viewport by clipping if necessary.
- * @param viewport the viewport to handle
- */
- public void renderViewport(Viewport viewport) {
- closeText();
-
- float x = currentBlockIPPosition / 1000f;
- float y = (currentBPPosition + viewport.getOffset()) / 1000f;
- float width = viewport.getWidth() / 1000f;
- float height = viewport.getHeight() / 1000f;
- drawBackAndBorders(viewport, x, y, width, height);
-
- endTextObject();
-
- if (viewport.getClip()) {
- saveGraphicsState();
-
- clip(x, y, width, height);
- }
- super.renderViewport(viewport);
-
- if (viewport.getClip()) {
- restoreGraphicsState();
- }
- beginTextObject();
- }
-
- /**
- * Render leader area.
- * This renders a leader area which is an area with a rule.
- * @param area the leader area to render
- */
- public void renderLeader(Leader area) {
- closeText();
- endTextObject();
- saveGraphicsState();
- int style = area.getRuleStyle();
- boolean alt = false;
- switch(style) {
- case RuleStyle.SOLID:
- currentStream.add("[] 0 d\n");
- break;
- case RuleStyle.DOTTED:
- currentStream.add("[2] 0 d\n");
- break;
- case RuleStyle.DASHED:
- currentStream.add("[6 4] 0 d\n");
- break;
- case RuleStyle.DOUBLE:
- case RuleStyle.GROOVE:
- case RuleStyle.RIDGE:
- alt = true;
- break;
- }
- float startx = ((float) currentBlockIPPosition) / 1000f;
- float starty = ((currentBPPosition + area.getOffset()) / 1000f);
- float endx = (currentBlockIPPosition + area.getWidth()) / 1000f;
- if (!alt) {
- currentStream.add(area.getRuleThickness() / 1000f + " w\n");
- drawLine(startx, starty, endx, starty);
- } else {
- if (style == RuleStyle.DOUBLE) {
- float third = area.getRuleThickness() / 3000f;
- currentStream.add(third + " w\n");
- drawLine(startx, starty, endx, starty);
-
- drawLine(startx, (starty + 2 * third), endx, (starty + 2 * third));
- } else {
- float half = area.getRuleThickness() / 2000f;
-
- currentStream.add("1 g\n");
- currentStream.add(startx + " " + starty + " m\n");
- currentStream.add(endx + " " + starty + " l\n");
- currentStream.add(endx + " " + (starty + 2 * half) + " l\n");
- currentStream.add(startx + " " + (starty + 2 * half) + " l\n");
- currentStream.add("h\n");
- currentStream.add("f\n");
- if (style == RuleStyle.GROOVE) {
- currentStream.add("0 g\n");
- currentStream.add(startx + " " + starty + " m\n");
- currentStream.add(endx + " " + starty + " l\n");
- currentStream.add(endx + " " + (starty + half) + " l\n");
- currentStream.add((startx + half) + " " + (starty + half) + " l\n");
- currentStream.add(startx + " " + (starty + 2 * half) + " l\n");
- } else {
- currentStream.add("0 g\n");
- currentStream.add(endx + " " + starty + " m\n");
- currentStream.add(endx + " " + (starty + 2 * half) + " l\n");
- currentStream.add(startx + " " + (starty + 2 * half) + " l\n");
- currentStream.add(startx + " " + (starty + half) + " l\n");
- currentStream.add((endx - half) + " " + (starty + half) + " l\n");
- }
- currentStream.add("h\n");
- currentStream.add("f\n");
- }
-
- }
-
- restoreGraphicsState();
- beginTextObject();
- super.renderLeader(area);
- }
- }
|