Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* $Id: PCLRenderer.java 932497 2010-04-09 16:34:29Z vhennebert $ */ package org.apache.fop.render.pcl; //Java import java.awt.BasicStroke; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics2D; import java.awt.Point; import java.awt.Rectangle; import java.awt.geom.AffineTransform; import java.awt.geom.GeneralPath; import java.awt.geom.Line2D; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import java.awt.image.RenderedImage; import java.io.FileNotFoundException; import java.io.IOException; import java.io.OutputStream; import java.util.List; import java.util.Map; import java.util.Stack; import org.w3c.dom.Document; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.xmlgraphics.image.loader.ImageException; import org.apache.xmlgraphics.image.loader.ImageFlavor; import org.apache.xmlgraphics.image.loader.ImageInfo; import org.apache.xmlgraphics.image.loader.ImageManager; import org.apache.xmlgraphics.image.loader.ImageSessionContext; import org.apache.xmlgraphics.image.loader.ImageSize; import org.apache.xmlgraphics.image.loader.impl.ImageGraphics2D; import org.apache.xmlgraphics.image.loader.impl.ImageRendered; import org.apache.xmlgraphics.image.loader.impl.ImageXMLDOM; import org.apache.xmlgraphics.image.loader.util.ImageUtil; import org.apache.xmlgraphics.java2d.GraphicContext; import org.apache.xmlgraphics.java2d.Graphics2DImagePainter; import org.apache.xmlgraphics.util.UnitConv; import org.apache.fop.ResourceEventProducer; import org.apache.fop.apps.FOPException; import org.apache.fop.apps.FOUserAgent; import org.apache.fop.apps.MimeConstants; 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.NormalFlow; import org.apache.fop.area.PageViewport; import org.apache.fop.area.RegionViewport; import org.apache.fop.area.Trait; import org.apache.fop.area.inline.AbstractTextArea; import org.apache.fop.area.inline.ForeignObject; import org.apache.fop.area.inline.Image; import org.apache.fop.area.inline.InlineArea; import org.apache.fop.area.inline.Leader; import org.apache.fop.area.inline.SpaceArea; import org.apache.fop.area.inline.TextArea; import org.apache.fop.area.inline.Viewport; import org.apache.fop.area.inline.WordArea; import org.apache.fop.datatypes.URISpecification; import org.apache.fop.fonts.Font; import org.apache.fop.fonts.FontCollection; import org.apache.fop.fonts.FontInfo; import org.apache.fop.fonts.FontMetrics; import org.apache.fop.render.Graphics2DAdapter; import org.apache.fop.render.ImageHandlerUtil; import org.apache.fop.render.PrintRenderer; import org.apache.fop.render.RendererContext; import org.apache.fop.render.RendererContextConstants; import org.apache.fop.render.RendererEventProducer; import org.apache.fop.render.java2d.Base14FontCollection; import org.apache.fop.render.java2d.ConfiguredFontCollection; import org.apache.fop.render.java2d.FontMetricsMapper; import org.apache.fop.render.java2d.InstalledFontCollection; import org.apache.fop.render.java2d.Java2DFontMetrics; import org.apache.fop.render.java2d.Java2DRenderer; import org.apache.fop.render.pcl.extensions.PCLElementMapping; import org.apache.fop.traits.BorderProps; /* Note: * There are some commonalities with AbstractPathOrientedRenderer but it's not possible * to derive from it due to PCL's restrictions. We may need an additional common subclass to * avoid methods copied from AbstractPathOrientedRenderer. Or we wait until after the IF redesign. */ /** * Renderer for the PCL 5 printer language. It also uses HP GL/2 for certain graphic elements. */ public class PCLRenderer extends PrintRenderer implements PCLConstants { /** logging instance */ private static Log log = LogFactory.getLog(PCLRenderer.class); /** The MIME type for PCL */ public static final String MIME_TYPE = MimeConstants.MIME_PCL_ALT; /** The OutputStream to write the PCL stream to */ protected OutputStream out; /** The PCL generator */ protected PCLGenerator gen; private boolean ioTrouble = false; private final Stack graphicContextStack = new Stack(); private GraphicContext graphicContext = new GraphicContext(); private PCLPageDefinition currentPageDefinition; private int currentPrintDirection = 0; private GeneralPath currentPath = null; private java.awt.Color currentFillColor = null; /** * Utility class which enables all sorts of features that are not directly connected to the * normal rendering process. */ private PCLRenderingUtil pclUtil; /** contains the pageWith of the last printed page */ private long pageWidth = 0; /** contains the pageHeight of the last printed page */ private long pageHeight = 0; /** * Create the PCL renderer */ public PCLRenderer() { } /** {@inheritDoc} */ public void setUserAgent(FOUserAgent agent) { super.setUserAgent(agent); this.pclUtil = new PCLRenderingUtil(getUserAgent()); } PCLRenderingUtil getPCLUtil() { return this.pclUtil; } /** * Configures the renderer to trade speed for quality if desired. One example here is the way * that borders are rendered. * @param qualityBeforeSpeed true if quality is more important than speed */ public void setQualityBeforeSpeed(boolean qualityBeforeSpeed) { pclUtil.setRenderingMode(qualityBeforeSpeed ? PCLRenderingMode.QUALITY : PCLRenderingMode.SPEED); } /** * Controls whether PJL commands shall be generated by the PCL renderer. * @param disable true to disable PJL commands */ public void setPJLDisabled(boolean disable) { pclUtil.setPJLDisabled(disable); } /** * Indicates whether PJL generation is disabled. * @return true if PJL generation is disabled. */ public boolean isPJLDisabled() { return pclUtil.isPJLDisabled(); } /** * Controls whether all text should be generated as bitmaps or only text for which there's * no native font. * @param allTextAsBitmaps true if all text should be painted as bitmaps */ public void setAllTextAsBitmaps(boolean allTextAsBitmaps) { pclUtil.setAllTextAsBitmaps(allTextAsBitmaps); } /** * {@inheritDoc} */ public void setupFontInfo(FontInfo inFontInfo) { //Don't call super.setupFontInfo() here! //The PCLRenderer uses the Java2D FontSetup which needs a special font setup //create a temp Image to test font metrics on fontInfo = inFontInfo; Graphics2D graphics2D = Java2DFontMetrics.createFontMetricsGraphics2D(); FontCollection[] fontCollections = new FontCollection[] { new Base14FontCollection(graphics2D), new InstalledFontCollection(graphics2D), new ConfiguredFontCollection(getFontResolver(), getFontList()) }; userAgent.getFactory().getFontManager().setup(getFontInfo(), fontCollections); } /** * Central exception handler for I/O exceptions. * @param ioe IOException to handle */ protected void handleIOTrouble(IOException ioe) { if (!ioTrouble) { RendererEventProducer eventProducer = RendererEventProducer.Provider .get(getUserAgent().getEventBroadcaster()); eventProducer.ioError(this, ioe); ioTrouble = true; } } /** {@inheritDoc} */ public Graphics2DAdapter getGraphics2DAdapter() { return new PCLGraphics2DAdapter(); } /** @return the GraphicContext used to track coordinate system transformations */ public GraphicContext getGraphicContext() { return this.graphicContext; } /** @return the target resolution */ protected int getResolution() { int resolution = Math.round(userAgent.getTargetResolution()); if (resolution <= 300) { return 300; } else { return 600; } } /** {@inheritDoc} */ public void startRenderer(OutputStream outputStream) throws IOException { log.debug("Rendering areas to PCL..."); this.out = outputStream; this.gen = new PCLGenerator(out, getResolution()); if (!isPJLDisabled()) { gen.universalEndOfLanguage(); gen.writeText("@PJL COMMENT Produced by " + userAgent.getProducer() + "\n"); if (userAgent.getTitle() != null) { gen.writeText("@PJL JOB NAME = \"" + userAgent.getTitle() + "\"\n"); } gen.writeText("@PJL SET RESOLUTION = " + getResolution() + "\n"); gen.writeText("@PJL ENTER LANGUAGE = PCL\n"); } gen.resetPrinter(); gen.setUnitOfMeasure(getResolution()); gen.setRasterGraphicsResolution(getResolution()); } /** {@inheritDoc} */ public void stopRenderer() throws IOException { gen.separateJobs(); gen.resetPrinter(); if (!isPJLDisabled()) { gen.universalEndOfLanguage(); } } /** {@inheritDoc} */ public String getMimeType() { return MIME_TYPE; } /** {@inheritDoc} */ public void renderPage(PageViewport page) throws IOException, FOPException { saveGraphicsState(); //Paper source String paperSource = page.getForeignAttributeValue(PCLElementMapping.PCL_PAPER_SOURCE); if (paperSource != null) { gen.selectPaperSource(Integer.parseInt(paperSource)); } //Output bin String outputBin = page.getForeignAttributeValue(PCLElementMapping.PCL_OUTPUT_BIN); if (outputBin != null) { gen.selectOutputBin(Integer.parseInt(outputBin)); } // Is Page duplex? String pageDuplex = page.getForeignAttributeValue(PCLElementMapping.PCL_DUPLEX_MODE); if (pageDuplex != null) { gen.selectDuplexMode(Integer.parseInt(pageDuplex)); } //Page size final long pagewidth = Math.round(page.getViewArea().getWidth()); final long pageheight = Math.round(page.getViewArea().getHeight()); selectPageFormat(pagewidth, pageheight); super.renderPage(page); //Eject page gen.formFeed(); restoreGraphicsState(); } private void selectPageFormat(long pagewidth, long pageheight) throws IOException { //Only set the page format if it changes (otherwise duplex printing won't work) if ((pagewidth != this.pageWidth) || (pageheight != this.pageHeight)) { this.pageWidth = pagewidth; this.pageHeight = pageheight; this.currentPageDefinition = PCLPageDefinition.getPageDefinition(pagewidth, pageheight, 1000); if (this.currentPageDefinition == null) { this.currentPageDefinition = PCLPageDefinition.getDefaultPageDefinition(); log.warn("Paper type could not be determined. Falling back to: " + this.currentPageDefinition.getName()); } if (log.isDebugEnabled()) { log.debug("page size: " + currentPageDefinition.getPhysicalPageSize()); log.debug("logical page: " + currentPageDefinition.getLogicalPageRect()); } if (this.currentPageDefinition.isLandscapeFormat()) { gen.writeCommand("&l1O"); //Landscape Orientation } else { gen.writeCommand("&l0O"); //Portrait Orientation } gen.selectPageSize(this.currentPageDefinition.getSelector()); gen.clearHorizontalMargins(); gen.setTopMargin(0); } } /** Saves the current graphics state on the stack. */ protected void saveGraphicsState() { graphicContextStack.push(graphicContext); graphicContext = (GraphicContext) graphicContext.clone(); } /** Restores the last graphics state from the stack. */ protected void restoreGraphicsState() { graphicContext = (GraphicContext) graphicContextStack.pop(); } /** * Clip an area. write a clipping operation given coordinates in the current * transform. Coordinates are in points. * * @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 clipRect(float x, float y, float width, float height) { //PCL cannot clip (only HP GL/2 can) } private Point2D transformedPoint(float x, float y) { return transformedPoint(Math.round(x), Math.round(y)); } private Point2D transformedPoint(int x, int y) { return PCLRenderingUtil.transformedPoint(x, y, graphicContext.getTransform(), currentPageDefinition, currentPrintDirection); } private void changePrintDirection() { AffineTransform at = graphicContext.getTransform(); int newDir; try { newDir = PCLRenderingUtil.determinePrintDirection(at); if (newDir != this.currentPrintDirection) { this.currentPrintDirection = newDir; gen.changePrintDirection(this.currentPrintDirection); } } catch (IOException ioe) { handleIOTrouble(ioe); } } /** * {@inheritDoc} */ protected void startVParea(CTM ctm, Rectangle2D clippingRect) { saveGraphicsState(); AffineTransform at = new AffineTransform(ctm.toArray()); graphicContext.transform(at); changePrintDirection(); if (log.isDebugEnabled()) { log.debug("startVPArea: " + at + " --> " + graphicContext.getTransform()); } } /** * {@inheritDoc} */ protected void endVParea() { restoreGraphicsState(); changePrintDirection(); if (log.isDebugEnabled()) { log.debug("endVPArea() --> " + graphicContext.getTransform()); } } /** * 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) { int borderPaddingStart = block.getBorderAndPaddingWidthStart(); int borderPaddingBefore = block.getBorderAndPaddingWidthBefore(); float startx = currentIPPosition / 1000f; float starty = currentBPPosition / 1000f; float width = block.getIPD() / 1000f; float height = block.getBPD() / 1000f; startx += block.getStartIndent() / 1000f; startx -= block.getBorderAndPaddingWidthStart() / 1000f; width += borderPaddingStart / 1000f; width += block.getBorderAndPaddingWidthEnd() / 1000f; height += borderPaddingBefore / 1000f; height += block.getBorderAndPaddingWidthAfter() / 1000f; drawBackAndBorders(block, startx, starty, width, height); } /** * {@inheritDoc} * @todo Copied from AbstractPathOrientedRenderer */ protected void handleRegionTraits(RegionViewport region) { 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.getRegionReference().getRegionClass() == FO_REGION_BODY) { currentBPPosition = region.getBorderAndPaddingWidthBefore(); currentIPPosition = region.getBorderAndPaddingWidthStart(); } drawBackAndBorders(region, startx, starty, width, height); } /** * {@inheritDoc} */ protected void renderText(final TextArea text) { renderInlineAreaBackAndBorders(text); String fontname = getInternalFontNameForArea(text); final int fontsize = text.getTraitAsInteger(Trait.FONT_SIZE); //Determine position int saveIP = currentIPPosition; final int rx = currentIPPosition + text.getBorderAndPaddingWidthStart(); int bl = currentBPPosition + text.getOffset() + text.getBaselineOffset(); try { final Color col = (Color) text.getTrait(Trait.COLOR); boolean pclFont = pclUtil.isAllTextAsBitmaps() ? false : HardcodedFonts.setFont(gen, fontname, fontsize, text.getText()); if (pclFont) { //this.currentFill = col; if (col != null) { //useColor(ct); gen.setTransparencyMode(true, false); gen.selectGrayscale(col); } saveGraphicsState(); graphicContext.translate(rx, bl); setCursorPos(0, 0); gen.setTransparencyMode(true, true); if (text.hasUnderline()) { gen.writeCommand("&d0D"); } super.renderText(text); //Updates IPD and renders words and spaces if (text.hasUnderline()) { gen.writeCommand("&d@"); } restoreGraphicsState(); } else { //Use Java2D to paint different fonts via bitmap final Font font = getFontFromArea(text); final int baseline = text.getBaselineOffset(); //for cursive fonts, so the text isn't clipped int extraWidth = font.getFontSize() / 3; final FontMetricsMapper mapper = (FontMetricsMapper) fontInfo.getMetricsFor(font.getFontName()); int maxAscent = mapper.getMaxAscent(font.getFontSize()) / 1000; final int additionalBPD = maxAscent - baseline; Graphics2DAdapter g2a = getGraphics2DAdapter(); final Rectangle paintRect = new Rectangle(rx, currentBPPosition + text.getOffset() - additionalBPD, text.getIPD() + extraWidth, text.getBPD() + additionalBPD); RendererContext rc = createRendererContext(paintRect.x, paintRect.y, paintRect.width, paintRect.height, null); Map atts = new java.util.HashMap(); atts.put(ImageHandlerUtil.CONVERSION_MODE, ImageHandlerUtil.CONVERSION_MODE_BITMAP); atts.put(SRC_TRANSPARENCY, "true"); rc.setProperty(RendererContextConstants.FOREIGN_ATTRIBUTES, atts); Graphics2DImagePainter painter = new Graphics2DImagePainter() { public void paint(Graphics2D g2d, Rectangle2D area) { g2d.setFont(mapper.getFont(font.getFontSize())); g2d.translate(0, baseline + additionalBPD); g2d.scale(1000, 1000); g2d.setColor(col); Java2DRenderer.renderText(text, g2d, font); renderTextDecoration(g2d, mapper, fontsize, text, 0, 0); } public Dimension getImageSize() { return paintRect.getSize(); } }; g2a.paintImage(painter, rc, paintRect.x, paintRect.y, paintRect.width, paintRect.height); currentIPPosition = saveIP + text.getAllocIPD(); } } catch (IOException ioe) { handleIOTrouble(ioe); } } /** * Paints the text decoration marks. * @param g2d Graphics2D instance to paint to * @param fm Current typeface * @param fontsize Current font size * @param inline inline area to paint the marks for * @param baseline position of the baseline * @param startx start IPD */ private static void renderTextDecoration(Graphics2D g2d, FontMetrics fm, int fontsize, InlineArea inline, int baseline, int startx) { boolean hasTextDeco = inline.hasUnderline() || inline.hasOverline() || inline.hasLineThrough(); if (hasTextDeco) { float descender = fm.getDescender(fontsize) / 1000f; float capHeight = fm.getCapHeight(fontsize) / 1000f; float lineWidth = (descender / -4f) / 1000f; float endx = (startx + inline.getIPD()) / 1000f; if (inline.hasUnderline()) { Color ct = (Color) inline.getTrait(Trait.UNDERLINE_COLOR); g2d.setColor(ct); float y = baseline - descender / 2f; g2d.setStroke(new BasicStroke(lineWidth)); g2d.draw(new Line2D.Float(startx / 1000f, y / 1000f, endx, y / 1000f)); } if (inline.hasOverline()) { Color ct = (Color) inline.getTrait(Trait.OVERLINE_COLOR); g2d.setColor(ct); float y = (float) (baseline - (1.1 * capHeight)); g2d.setStroke(new BasicStroke(lineWidth)); g2d.draw(new Line2D.Float(startx / 1000f, y / 1000f, endx, y / 1000f)); } if (inline.hasLineThrough()) { Color ct = (Color) inline.getTrait(Trait.LINETHROUGH_COLOR); g2d.setColor(ct); float y = (float) (baseline - (0.45 * capHeight)); g2d.setStroke(new BasicStroke(lineWidth)); g2d.draw(new Line2D.Float(startx / 1000f, y / 1000f, endx, y / 1000f)); } } } /** * Sets the current cursor position. The coordinates are transformed to the absolute position * on the logical PCL page and then passed on to the PCLGenerator. * @param x the x coordinate (in millipoints) * @param y the y coordinate (in millipoints) */ void setCursorPos(float x, float y) { try { Point2D transPoint = transformedPoint(x, y); gen.setCursorPos(transPoint.getX(), transPoint.getY()); } catch (IOException ioe) { handleIOTrouble(ioe); } } /** Clip using the current path. */ protected void clip() { if (currentPath == null) { throw new IllegalStateException("No current path available!"); } //TODO Find a good way to do clipping. PCL itself cannot clip. currentPath = null; } /** * Closes the current subpath by appending a straight line segment from * the current point to the starting point of the subpath. */ protected void closePath() { currentPath.closePath(); } /** * Appends a straight line segment from the current point to (x, y). The * new current point is (x, y). * @param x x coordinate * @param y y coordinate */ protected void lineTo(float x, float y) { if (currentPath == null) { currentPath = new GeneralPath(); } currentPath.lineTo(x, y); } /** * Moves the current point to (x, y), omitting any connecting line segment. * @param x x coordinate * @param y y coordinate */ protected void moveTo(float x, float y) { if (currentPath == null) { currentPath = new GeneralPath(); } currentPath.moveTo(x, y); } /** * Fill a rectangular area. * @param x the x coordinate (in pt) * @param y the y coordinate (in pt) * @param width the width of the rectangle * @param height the height of the rectangle */ protected void fillRect(float x, float y, float width, float height) { try { setCursorPos(x * 1000, y * 1000); gen.fillRect((int) (width * 1000), (int) (height * 1000), this.currentFillColor); } catch (IOException ioe) { handleIOTrouble(ioe); } } /** * Sets the new current fill color. * @param color the color */ protected void updateFillColor(java.awt.Color color) { this.currentFillColor = color; } /** * {@inheritDoc} */ protected void renderWord(WordArea word) { //Font font = getFontFromArea(word.getParentArea()); String s = word.getWord(); try { gen.writeText(s); } catch (IOException ioe) { handleIOTrouble(ioe); } super.renderWord(word); } /** * {@inheritDoc} */ protected void renderSpace(SpaceArea space) { AbstractTextArea textArea = (AbstractTextArea) space.getParentArea(); String s = space.getSpace(); char sp = s.charAt(0); Font font = getFontFromArea(textArea); int tws = (space.isAdjustable() ? textArea.getTextWordSpaceAdjust() + 2 * textArea.getTextLetterSpaceAdjust() : 0); double dx = (font.getCharWidth(sp) + tws) / 100f; try { gen.writeCommand("&a+" + gen.formatDouble2(dx) + "H"); } catch (IOException ioe) { handleIOTrouble(ioe); } super.renderSpace(space); } /** * Render an inline viewport. * This renders an inline viewport by clipping if necessary. * @param viewport the viewport to handle * @todo Copied from AbstractPathOrientedRenderer */ public void renderViewport(Viewport viewport) { float x = currentIPPosition / 1000f; float y = (currentBPPosition + viewport.getOffset()) / 1000f; float width = viewport.getIPD() / 1000f; float height = viewport.getBPD() / 1000f; // TODO: Calculate the border rect correctly. float borderPaddingStart = viewport.getBorderAndPaddingWidthStart() / 1000f; float borderPaddingBefore = viewport.getBorderAndPaddingWidthBefore() / 1000f; float bpwidth = borderPaddingStart + (viewport.getBorderAndPaddingWidthEnd() / 1000f); float bpheight = borderPaddingBefore + (viewport.getBorderAndPaddingWidthAfter() / 1000f); drawBackAndBorders(viewport, x, y, width + bpwidth, height + bpheight); if (viewport.getClip()) { saveGraphicsState(); clipRect(x + borderPaddingStart, y + borderPaddingBefore, width, height); } super.renderViewport(viewport); if (viewport.getClip()) { restoreGraphicsState(); } } /** * {@inheritDoc} */ protected void renderBlockViewport(BlockViewport bv, List children) { // clip and position viewport if necessary // save positions int saveIP = currentIPPosition; int saveBP = currentBPPosition; CTM ctm = bv.getCTM(); int borderPaddingStart = bv.getBorderAndPaddingWidthStart(); int borderPaddingBefore = bv.getBorderAndPaddingWidthBefore(); //This is the content-rect float width = bv.getIPD() / 1000f; float height = bv.getBPD() / 1000f; if (bv.getPositioning() == Block.ABSOLUTE || bv.getPositioning() == Block.FIXED) { //For FIXED, we need to break out of the current viewports to the //one established by the page. We save the state stack for restoration //after the block-container has been painted. See below. List breakOutList = null; if (bv.getPositioning() == Block.FIXED) { breakOutList = breakOutOfStateStack(); } AffineTransform positionTransform = new AffineTransform(); positionTransform.translate(bv.getXOffset(), bv.getYOffset()); //"left/"top" (bv.getX/YOffset()) specify the position of the content rectangle positionTransform.translate(-borderPaddingStart, -borderPaddingBefore); saveGraphicsState(); //Viewport position concatenateTransformationMatrix(UnitConv.mptToPt(positionTransform)); //Background and borders float bpwidth = (borderPaddingStart + bv.getBorderAndPaddingWidthEnd()) / 1000f; float bpheight = (borderPaddingBefore + bv.getBorderAndPaddingWidthAfter()) / 1000f; drawBackAndBorders(bv, 0, 0, width + bpwidth, height + bpheight); //Shift to content rectangle after border painting AffineTransform contentRectTransform = new AffineTransform(); contentRectTransform.translate(borderPaddingStart, borderPaddingBefore); concatenateTransformationMatrix(UnitConv.mptToPt(contentRectTransform)); //Clipping if (bv.getClip()) { clipRect(0f, 0f, width, height); } saveGraphicsState(); //Set up coordinate system for content rectangle AffineTransform contentTransform = ctm.toAffineTransform(); concatenateTransformationMatrix(UnitConv.mptToPt(contentTransform)); currentIPPosition = 0; currentBPPosition = 0; renderBlocks(bv, children); restoreGraphicsState(); restoreGraphicsState(); if (breakOutList != null) { restoreStateStackAfterBreakOut(breakOutList); } currentIPPosition = saveIP; currentBPPosition = saveBP; } else { currentBPPosition += bv.getSpaceBefore(); //borders and background in the old coordinate system handleBlockTraits(bv); //Advance to start of content area currentIPPosition += bv.getStartIndent(); CTM tempctm = new CTM(containingIPPosition, currentBPPosition); ctm = tempctm.multiply(ctm); //Now adjust for border/padding currentBPPosition += borderPaddingBefore; Rectangle2D clippingRect = null; if (bv.getClip()) { clippingRect = new Rectangle(currentIPPosition, currentBPPosition, bv.getIPD(), bv.getBPD()); } startVParea(ctm, clippingRect); currentIPPosition = 0; currentBPPosition = 0; renderBlocks(bv, children); endVParea(); currentIPPosition = saveIP; currentBPPosition = saveBP; currentBPPosition += (bv.getAllocBPD()); } //currentFontName = saveFontName; } /** {@inheritDoc} */ protected void renderReferenceArea(Block block) { //TODO This is the same code as in AbstractPathOrientedRenderer //So there's some optimization potential but not otherwise PCLRenderer is a little //difficult to derive from AbstractPathOrientedRenderer. Maybe an additional layer //between PrintRenderer and AbstractPathOrientedRenderer is necessary. // save position and offset int saveIP = currentIPPosition; int saveBP = currentBPPosition; //Establish a new coordinate system AffineTransform at = new AffineTransform(); at.translate(currentIPPosition, currentBPPosition); at.translate(block.getXOffset(), block.getYOffset()); at.translate(0, block.getSpaceBefore()); if (!at.isIdentity()) { saveGraphicsState(); concatenateTransformationMatrix(UnitConv.mptToPt(at)); } currentIPPosition = 0; currentBPPosition = 0; handleBlockTraits(block); List children = block.getChildAreas(); if (children != null) { renderBlocks(block, children); } if (!at.isIdentity()) { restoreGraphicsState(); } // stacked and relative blocks effect stacking currentIPPosition = saveIP; currentBPPosition = saveBP; } /** {@inheritDoc} */ protected void renderFlow(NormalFlow flow) { //TODO This is the same code as in AbstractPathOrientedRenderer //So there's some optimization potential but not otherwise PCLRenderer is a little //difficult to derive from AbstractPathOrientedRenderer. Maybe an additional layer //between PrintRenderer and AbstractPathOrientedRenderer is necessary. // save position and offset int saveIP = currentIPPosition; int saveBP = currentBPPosition; //Establish a new coordinate system AffineTransform at = new AffineTransform(); at.translate(currentIPPosition, currentBPPosition); if (!at.isIdentity()) { saveGraphicsState(); concatenateTransformationMatrix(UnitConv.mptToPt(at)); } currentIPPosition = 0; currentBPPosition = 0; super.renderFlow(flow); if (!at.isIdentity()) { restoreGraphicsState(); } // stacked and relative blocks effect stacking currentIPPosition = saveIP; currentBPPosition = saveBP; } /** * Concatenates the current transformation matrix with the given one, therefore establishing * a new coordinate system. * @param at the transformation matrix to process (coordinates in points) */ protected void concatenateTransformationMatrix(AffineTransform at) { if (!at.isIdentity()) { graphicContext.transform(UnitConv.ptToMpt(at)); changePrintDirection(); } } private List breakOutOfStateStack() { log.debug("Block.FIXED --> break out"); List breakOutList = new java.util.ArrayList(); while (!this.graphicContextStack.empty()) { breakOutList.add(0, this.graphicContext); restoreGraphicsState(); } return breakOutList; } private void restoreStateStackAfterBreakOut(List breakOutList) { log.debug("Block.FIXED --> restoring context after break-out"); for (int i = 0, c = breakOutList.size(); i < c; i++) { saveGraphicsState(); this.graphicContext = (GraphicContext) breakOutList.get(i); } } /** {@inheritDoc} */ protected RendererContext createRendererContext(int x, int y, int width, int height, Map foreignAttributes) { RendererContext context = super.createRendererContext(x, y, width, height, foreignAttributes); context.setProperty(PCLRendererContextConstants.PCL_COLOR_CANVAS, Boolean.valueOf(pclUtil.isColorCanvasEnabled())); return context; } /** {@inheritDoc} */ public void renderImage(Image image, Rectangle2D pos) { drawImage(image.getURL(), pos, image.getForeignAttributes()); } private static final ImageFlavor[] FLAVORS = new ImageFlavor[] { ImageFlavor.GRAPHICS2D, ImageFlavor.BUFFERED_IMAGE, ImageFlavor.RENDERED_IMAGE, ImageFlavor.XML_DOM }; /** * Draw an image at the indicated location. * @param uri the URI/URL of the image * @param pos the position of the image * @param foreignAttributes an optional Map with foreign attributes, may be null */ protected void drawImage(String uri, Rectangle2D pos, Map foreignAttributes) { uri = URISpecification.getURL(uri); Rectangle posInt = new Rectangle((int) pos.getX(), (int) pos.getY(), (int) pos.getWidth(), (int) pos.getHeight()); Point origin = new Point(currentIPPosition, currentBPPosition); int x = origin.x + posInt.x; int y = origin.y + posInt.y; ImageManager manager = getUserAgent().getFactory().getImageManager(); ImageInfo info = null; try { ImageSessionContext sessionContext = getUserAgent().getImageSessionContext(); info = manager.getImageInfo(uri, sessionContext); //Only now fully load/prepare the image Map hints = ImageUtil.getDefaultHints(sessionContext); org.apache.xmlgraphics.image.loader.Image img = manager.getImage(info, FLAVORS, hints, sessionContext); //...and process the image if (img instanceof ImageGraphics2D) { ImageGraphics2D imageG2D = (ImageGraphics2D) img; RendererContext context = createRendererContext(posInt.x, posInt.y, posInt.width, posInt.height, foreignAttributes); getGraphics2DAdapter().paintImage(imageG2D.getGraphics2DImagePainter(), context, x, y, posInt.width, posInt.height); } else if (img instanceof ImageRendered) { ImageRendered imgRend = (ImageRendered) img; RenderedImage ri = imgRend.getRenderedImage(); setCursorPos(x, y); gen.paintBitmap(ri, new Dimension(posInt.width, posInt.height), false); } else if (img instanceof ImageXMLDOM) { ImageXMLDOM imgXML = (ImageXMLDOM) img; renderDocument(imgXML.getDocument(), imgXML.getRootNamespace(), pos, foreignAttributes); } else { throw new UnsupportedOperationException("Unsupported image type: " + img); } } catch (ImageException ie) { ResourceEventProducer eventProducer = ResourceEventProducer.Provider .get(getUserAgent().getEventBroadcaster()); eventProducer.imageError(this, (info != null ? info.toString() : uri), ie, null); } catch (FileNotFoundException fe) { ResourceEventProducer eventProducer = ResourceEventProducer.Provider .get(getUserAgent().getEventBroadcaster()); eventProducer.imageNotFound(this, (info != null ? info.toString() : uri), fe, null); } catch (IOException ioe) { ResourceEventProducer eventProducer = ResourceEventProducer.Provider .get(getUserAgent().getEventBroadcaster()); eventProducer.imageIOError(this, (info != null ? info.toString() : uri), ioe, null); } } /** {@inheritDoc} */ public void renderForeignObject(ForeignObject fo, Rectangle2D pos) { Document doc = fo.getDocument(); String ns = fo.getNameSpace(); renderDocument(doc, ns, pos, fo.getForeignAttributes()); } /** * Common method to render the background and borders for any inline area. * The all borders and padding are drawn outside the specified area. * @param area the inline area for which the background, border and padding is to be * rendered * @todo Copied from AbstractPathOrientedRenderer */ protected void renderInlineAreaBackAndBorders(InlineArea area) { float x = currentIPPosition / 1000f; float y = (currentBPPosition + area.getOffset()) / 1000f; float width = area.getIPD() / 1000f; float height = area.getBPD() / 1000f; float borderPaddingStart = area.getBorderAndPaddingWidthStart() / 1000f; float borderPaddingBefore = area.getBorderAndPaddingWidthBefore() / 1000f; float bpwidth = borderPaddingStart + (area.getBorderAndPaddingWidthEnd() / 1000f); float bpheight = borderPaddingBefore + (area.getBorderAndPaddingWidthAfter() / 1000f); if (height != 0.0f || bpheight != 0.0f && bpwidth != 0.0f) { drawBackAndBorders(area, x, y - borderPaddingBefore, width + bpwidth, height + bpheight); } } /** * Draw the background and borders. This draws the background and border * traits for an area given the position. * * @param area the area whose traits are used * @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 area, float startx, float starty, float width, float height) { BorderProps bpsBefore = (BorderProps) area.getTrait(Trait.BORDER_BEFORE); BorderProps bpsAfter = (BorderProps) area.getTrait(Trait.BORDER_AFTER); BorderProps bpsStart = (BorderProps) area.getTrait(Trait.BORDER_START); BorderProps bpsEnd = (BorderProps) area.getTrait(Trait.BORDER_END); // draw background Trait.Background back; back = (Trait.Background) area.getTrait(Trait.BACKGROUND); if (back != null) { // Calculate padding rectangle float sx = startx; float sy = starty; float paddRectWidth = width; float paddRectHeight = height; if (bpsStart != null) { sx += bpsStart.width / 1000f; paddRectWidth -= bpsStart.width / 1000f; } if (bpsBefore != null) { sy += bpsBefore.width / 1000f; paddRectHeight -= bpsBefore.width / 1000f; } if (bpsEnd != null) { paddRectWidth -= bpsEnd.width / 1000f; } if (bpsAfter != null) { paddRectHeight -= bpsAfter.width / 1000f; } if (back.getColor() != null) { updateFillColor(back.getColor()); fillRect(sx, sy, paddRectWidth, paddRectHeight); } // background image if (back.getImageInfo() != null) { ImageSize imageSize = back.getImageInfo().getSize(); saveGraphicsState(); clipRect(sx, sy, paddRectWidth, paddRectHeight); int horzCount = (int) ((paddRectWidth * 1000 / imageSize.getWidthMpt()) + 1.0f); int vertCount = (int) ((paddRectHeight * 1000 / imageSize.getHeightMpt()) + 1.0f); if (back.getRepeat() == EN_NOREPEAT) { horzCount = 1; vertCount = 1; } else if (back.getRepeat() == EN_REPEATX) { vertCount = 1; } else if (back.getRepeat() == EN_REPEATY) { horzCount = 1; } // change from points to millipoints sx *= 1000; sy *= 1000; if (horzCount == 1) { sx += back.getHoriz(); } if (vertCount == 1) { sy += back.getVertical(); } for (int x = 0; x < horzCount; x++) { for (int y = 0; y < vertCount; y++) { // place once Rectangle2D pos; // Image positions are relative to the currentIP/BP pos = new Rectangle2D.Float(sx - currentIPPosition + (x * imageSize.getWidthMpt()), sy - currentBPPosition + (y * imageSize.getHeightMpt()), imageSize.getWidthMpt(), imageSize.getHeightMpt()); drawImage(back.getURL(), pos, null); } } restoreGraphicsState(); } } Rectangle2D.Float borderRect = new Rectangle2D.Float(startx, starty, width, height); drawBorders(borderRect, bpsBefore, bpsAfter, bpsStart, bpsEnd); } /** * Draws borders. * @param borderRect the border rectangle * @param bpsBefore the border specification on the before side * @param bpsAfter the border specification on the after side * @param bpsStart the border specification on the start side * @param bpsEnd the border specification on the end side */ protected void drawBorders(Rectangle2D.Float borderRect, final BorderProps bpsBefore, final BorderProps bpsAfter, final BorderProps bpsStart, final BorderProps bpsEnd) { if (bpsBefore == null && bpsAfter == null && bpsStart == null && bpsEnd == null) { return; //no borders to paint } if (PCLRenderingMode.SPEED == pclUtil.getRenderingMode()) { drawFastBorders(borderRect, bpsBefore, bpsAfter, bpsStart, bpsEnd); } else { drawQualityBorders(borderRect, bpsBefore, bpsAfter, bpsStart, bpsEnd); } } /** * Draws borders. Borders are drawn as shaded rectangles with no clipping. * @param borderRect the border rectangle * @param bpsBefore the border specification on the before side * @param bpsAfter the border specification on the after side * @param bpsStart the border specification on the start side * @param bpsEnd the border specification on the end side */ protected void drawFastBorders(Rectangle2D.Float borderRect, final BorderProps bpsBefore, final BorderProps bpsAfter, final BorderProps bpsStart, final BorderProps bpsEnd) { float startx = borderRect.x; float starty = borderRect.y; float width = borderRect.width; float height = borderRect.height; if (bpsBefore != null) { float borderWidth = bpsBefore.width / 1000f; updateFillColor(bpsBefore.color); fillRect(startx, starty, width, borderWidth); } if (bpsAfter != null) { float borderWidth = bpsAfter.width / 1000f; updateFillColor(bpsAfter.color); fillRect(startx, (starty + height - borderWidth), width, borderWidth); } if (bpsStart != null) { float borderWidth = bpsStart.width / 1000f; updateFillColor(bpsStart.color); fillRect(startx, starty, borderWidth, height); } if (bpsEnd != null) { float borderWidth = bpsEnd.width / 1000f; updateFillColor(bpsEnd.color); fillRect((startx + width - borderWidth), starty, borderWidth, height); } } /** * Draws borders. Borders are drawn in-memory and painted as a bitmap. * @param borderRect the border rectangle * @param bpsBefore the border specification on the before side * @param bpsAfter the border specification on the after side * @param bpsStart the border specification on the start side * @param bpsEnd the border specification on the end side */ protected void drawQualityBorders(Rectangle2D.Float borderRect, final BorderProps bpsBefore, final BorderProps bpsAfter, final BorderProps bpsStart, final BorderProps bpsEnd) { Graphics2DAdapter g2a = getGraphics2DAdapter(); final Rectangle.Float effBorderRect = new Rectangle2D.Float(0, 0, borderRect.width, borderRect.height); final Rectangle paintRect = new Rectangle(Math.round(borderRect.x * 1000f), Math.round(borderRect.y * 1000f), (int) Math.floor(borderRect.width * 1000f) + 1, (int) Math.floor(borderRect.height * 1000f) + 1); //Add one pixel wide safety margin around the paint area int pixelWidth = (int) Math.round(UnitConv.in2mpt(1) / userAgent.getTargetResolution()); final int xoffset = Math.round(-effBorderRect.x * 1000f) + pixelWidth; final int yoffset = pixelWidth; paintRect.x += xoffset; paintRect.y += yoffset; paintRect.width += 2 * pixelWidth; paintRect.height += 2 * pixelWidth; RendererContext rc = createRendererContext(paintRect.x, paintRect.y, paintRect.width, paintRect.height, null); Map atts = new java.util.HashMap(); atts.put(ImageHandlerUtil.CONVERSION_MODE, ImageHandlerUtil.CONVERSION_MODE_BITMAP); atts.put(SRC_TRANSPARENCY, "true"); rc.setProperty(RendererContextConstants.FOREIGN_ATTRIBUTES, atts); Graphics2DImagePainter painter = new Graphics2DImagePainter() { public void paint(Graphics2D g2d, Rectangle2D area) { g2d.translate(xoffset, yoffset); g2d.scale(1000, 1000); float startx = effBorderRect.x; float starty = effBorderRect.y; float width = effBorderRect.width; float height = effBorderRect.height; boolean[] b = new boolean[] { (bpsBefore != null), (bpsEnd != null), (bpsAfter != null), (bpsStart != null) }; if (!b[0] && !b[1] && !b[2] && !b[3]) { return; } float[] bw = new float[] { (b[0] ? bpsBefore.width / 1000f : 0.0f), (b[1] ? bpsEnd.width / 1000f : 0.0f), (b[2] ? bpsAfter.width / 1000f : 0.0f), (b[3] ? bpsStart.width / 1000f : 0.0f) }; float[] clipw = new float[] { BorderProps.getClippedWidth(bpsBefore) / 1000f, BorderProps.getClippedWidth(bpsEnd) / 1000f, BorderProps.getClippedWidth(bpsAfter) / 1000f, BorderProps.getClippedWidth(bpsStart) / 1000f }; starty += clipw[0]; height -= clipw[0]; height -= clipw[2]; startx += clipw[3]; width -= clipw[3]; width -= clipw[1]; boolean[] slant = new boolean[] { (b[3] && b[0]), (b[0] && b[1]), (b[1] && b[2]), (b[2] && b[3]) }; if (bpsBefore != null) { //endTextObject(); float sx1 = startx; float sx2 = (slant[0] ? sx1 + bw[3] - clipw[3] : sx1); float ex1 = startx + width; float ex2 = (slant[1] ? ex1 - bw[1] + clipw[1] : ex1); float outery = starty - clipw[0]; float clipy = outery + clipw[0]; float innery = outery + bw[0]; //saveGraphicsState(); Graphics2D g = (Graphics2D) g2d.create(); moveTo(sx1, clipy); float sx1a = sx1; float ex1a = ex1; if (bpsBefore.mode == BorderProps.COLLAPSE_OUTER) { if (bpsStart != null && bpsStart.mode == BorderProps.COLLAPSE_OUTER) { sx1a -= clipw[3]; } if (bpsEnd != null && bpsEnd.mode == BorderProps.COLLAPSE_OUTER) { ex1a += clipw[1]; } lineTo(sx1a, outery); lineTo(ex1a, outery); } lineTo(ex1, clipy); lineTo(ex2, innery); lineTo(sx2, innery); closePath(); //clip(); g.clip(currentPath); currentPath = null; Rectangle2D.Float lineRect = new Rectangle2D.Float(sx1a, outery, ex1a - sx1a, innery - outery); Java2DRenderer.drawBorderLine(lineRect, true, true, bpsBefore.style, bpsBefore.color, g); //restoreGraphicsState(); } if (bpsEnd != null) { //endTextObject(); float sy1 = starty; float sy2 = (slant[1] ? sy1 + bw[0] - clipw[0] : sy1); float ey1 = starty + height; float ey2 = (slant[2] ? ey1 - bw[2] + clipw[2] : ey1); float outerx = startx + width + clipw[1]; float clipx = outerx - clipw[1]; float innerx = outerx - bw[1]; //saveGraphicsState(); Graphics2D g = (Graphics2D) g2d.create(); moveTo(clipx, sy1); float sy1a = sy1; float ey1a = ey1; if (bpsEnd.mode == BorderProps.COLLAPSE_OUTER) { if (bpsBefore != null && bpsBefore.mode == BorderProps.COLLAPSE_OUTER) { sy1a -= clipw[0]; } if (bpsAfter != null && bpsAfter.mode == BorderProps.COLLAPSE_OUTER) { ey1a += clipw[2]; } lineTo(outerx, sy1a); lineTo(outerx, ey1a); } lineTo(clipx, ey1); lineTo(innerx, ey2); lineTo(innerx, sy2); closePath(); //clip(); g.setClip(currentPath); currentPath = null; Rectangle2D.Float lineRect = new Rectangle2D.Float(innerx, sy1a, outerx - innerx, ey1a - sy1a); Java2DRenderer.drawBorderLine(lineRect, false, false, bpsEnd.style, bpsEnd.color, g); //restoreGraphicsState(); } if (bpsAfter != null) { //endTextObject(); float sx1 = startx; float sx2 = (slant[3] ? sx1 + bw[3] - clipw[3] : sx1); float ex1 = startx + width; float ex2 = (slant[2] ? ex1 - bw[1] + clipw[1] : ex1); float outery = starty + height + clipw[2]; float clipy = outery - clipw[2]; float innery = outery - bw[2]; //saveGraphicsState(); Graphics2D g = (Graphics2D) g2d.create(); moveTo(ex1, clipy); float sx1a = sx1; float ex1a = ex1; if (bpsAfter.mode == BorderProps.COLLAPSE_OUTER) { if (bpsStart != null && bpsStart.mode == BorderProps.COLLAPSE_OUTER) { sx1a -= clipw[3]; } if (bpsEnd != null && bpsEnd.mode == BorderProps.COLLAPSE_OUTER) { ex1a += clipw[1]; } lineTo(ex1a, outery); lineTo(sx1a, outery); } lineTo(sx1, clipy); lineTo(sx2, innery); lineTo(ex2, innery); closePath(); //clip(); g.setClip(currentPath); currentPath = null; Rectangle2D.Float lineRect = new Rectangle2D.Float(sx1a, innery, ex1a - sx1a, outery - innery); Java2DRenderer.drawBorderLine(lineRect, true, false, bpsAfter.style, bpsAfter.color, g); //restoreGraphicsState(); } if (bpsStart != null) { //endTextObject(); float sy1 = starty; float sy2 = (slant[0] ? sy1 + bw[0] - clipw[0] : sy1); float ey1 = sy1 + height; float ey2 = (slant[3] ? ey1 - bw[2] + clipw[2] : ey1); float outerx = startx - clipw[3]; float clipx = outerx + clipw[3]; float innerx = outerx + bw[3]; //saveGraphicsState(); Graphics2D g = (Graphics2D) g2d.create(); moveTo(clipx, ey1); float sy1a = sy1; float ey1a = ey1; if (bpsStart.mode == BorderProps.COLLAPSE_OUTER) { if (bpsBefore != null && bpsBefore.mode == BorderProps.COLLAPSE_OUTER) { sy1a -= clipw[0]; } if (bpsAfter != null && bpsAfter.mode == BorderProps.COLLAPSE_OUTER) { ey1a += clipw[2]; } lineTo(outerx, ey1a); lineTo(outerx, sy1a); } lineTo(clipx, sy1); lineTo(innerx, sy2); lineTo(innerx, ey2); closePath(); //clip(); g.setClip(currentPath); currentPath = null; Rectangle2D.Float lineRect = new Rectangle2D.Float(outerx, sy1a, innerx - outerx, ey1a - sy1a); Java2DRenderer.drawBorderLine(lineRect, false, false, bpsStart.style, bpsStart.color, g); //restoreGraphicsState(); } } public Dimension getImageSize() { return paintRect.getSize(); } }; try { g2a.paintImage(painter, rc, paintRect.x - xoffset, paintRect.y, paintRect.width, paintRect.height); } catch (IOException ioe) { handleIOTrouble(ioe); } } /** {@inheritDoc} */ public void renderLeader(Leader area) { renderInlineAreaBackAndBorders(area); saveGraphicsState(); int style = area.getRuleStyle(); float startx = (currentIPPosition + area.getBorderAndPaddingWidthStart()) / 1000f; float starty = (currentBPPosition + area.getOffset()) / 1000f; float endx = (currentIPPosition + area.getBorderAndPaddingWidthStart() + area.getIPD()) / 1000f; float ruleThickness = area.getRuleThickness() / 1000f; Color col = (Color) area.getTrait(Trait.COLOR); switch (style) { case EN_SOLID: case EN_DASHED: //TODO Improve me and following (this is just a quick-fix ATM) case EN_DOUBLE: case EN_DOTTED: case EN_GROOVE: case EN_RIDGE: updateFillColor(col); fillRect(startx, starty, endx - startx, ruleThickness); break; default: throw new UnsupportedOperationException("rule style not supported"); } restoreGraphicsState(); super.renderLeader(area); } }