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- /*
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render.java2d;
-
- // Java
- import java.awt.BasicStroke;
- import java.awt.Color;
- import java.awt.Graphics;
- import java.awt.Graphics2D;
- import java.awt.RenderingHints;
- import java.awt.font.GlyphVector;
- 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.BufferedImage;
- import java.awt.print.PageFormat;
- import java.awt.print.Printable;
- import java.awt.print.PrinterException;
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.util.Iterator;
- import java.util.List;
- import java.util.Map;
- import java.util.Stack;
-
- 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.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.fop.apps.FOPException;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.apps.FopFactoryConfigurator;
- import org.apache.fop.area.CTM;
- import org.apache.fop.area.PageViewport;
- import org.apache.fop.area.Trait;
- 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.WordArea;
- import org.apache.fop.datatypes.URISpecification;
- import org.apache.fop.events.ResourceEventProducer;
- import org.apache.fop.fo.Constants;
- import org.apache.fop.fonts.Font;
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.render.AbstractPathOrientedRenderer;
- import org.apache.fop.render.Graphics2DAdapter;
- import org.apache.fop.render.RendererContext;
- import org.apache.fop.render.pdf.CTMHelper;
- import org.apache.fop.util.CharUtilities;
-
- /**
- * The <code>Java2DRenderer</code> class provides the abstract technical
- * foundation for all rendering with the Java2D API. Renderers like
- * <code>AWTRenderer</code> subclass it and provide the concrete output paths.
- * <p>
- * A lot of the logic is performed by <code>AbstractRenderer</code>. The
- * class-variables <code>currentIPPosition</code> and
- * <code>currentBPPosition</code> hold the position of the currently rendered
- * area.
- * <p>
- * <code>Java2DGraphicsState state</code> holds the <code>Graphics2D</code>,
- * which is used along the whole rendering. <code>state</code> also acts as a
- * stack (<code>state.push()</code> and <code>state.pop()</code>).
- * <p>
- * The rendering process is basically always the same:
- * <p>
- * <code>void renderXXXXX(Area area) {
- * //calculate the currentPosition
- * state.updateFont(name, size, null);
- * state.updateColor(ct, false, null);
- * state.getGraph.draw(new Shape(args));
- * }</code>
- *
- */
- public abstract class Java2DRenderer extends AbstractPathOrientedRenderer implements Printable {
-
- /** Rendering Options key for the controlling the transparent page background option. */
- public static final String JAVA2D_TRANSPARENT_PAGE_BACKGROUND = "transparent-page-background";
-
- /** The scale factor for the image size, values: ]0 ; 1] */
- protected double scaleFactor = 1;
-
- /** The page width in pixels */
- protected int pageWidth = 0;
-
- /** The page height in pixels */
- protected int pageHeight = 0;
-
- /** List of Viewports */
- protected List pageViewportList = new java.util.ArrayList();
-
- /** The 0-based current page number */
- private int currentPageNumber = 0;
-
- /** true if antialiasing is set */
- protected boolean antialiasing = true;
-
- /** true if qualityRendering is set */
- protected boolean qualityRendering = true;
-
- /** false: paints a non-transparent white background, true: for a transparent background */
- protected boolean transparentPageBackground = false;
-
- /** The current state, holds a Graphics2D and its context */
- protected Java2DGraphicsState state;
-
- private Stack stateStack = new Stack();
-
- /** true if the renderer has finished rendering all the pages */
- private boolean renderingDone;
-
- private GeneralPath currentPath = null;
-
- /** Default constructor */
- public Java2DRenderer() {
- }
-
- /**
- * {@inheritDoc}
- */
- public void setUserAgent(FOUserAgent foUserAgent) {
- super.setUserAgent(foUserAgent);
- userAgent.setRendererOverride(this); // for document regeneration
-
- String s = (String)userAgent.getRendererOptions().get(JAVA2D_TRANSPARENT_PAGE_BACKGROUND);
- if (s != null) {
- this.transparentPageBackground = "true".equalsIgnoreCase(s);
- }
- }
-
- /** @return the FOUserAgent */
- public FOUserAgent getUserAgent() {
- return userAgent;
- }
-
- /**
- * {@inheritDoc}
- */
- public void setupFontInfo(FontInfo inFontInfo) {
- //Don't call super.setupFontInfo() here! Java2D needs a special font setup
- // create a temp Image to test font metrics on
- this.fontInfo = inFontInfo;
- BufferedImage fontImage = new BufferedImage(100, 100,
- BufferedImage.TYPE_INT_RGB);
- Graphics2D graphics2D = fontImage.createGraphics();
- //The next line is important to get accurate font metrics!
- graphics2D.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
- RenderingHints.VALUE_FRACTIONALMETRICS_ON);
-
- userAgent.getFactory().getFontManager().setupRenderer(this, graphics2D);
- }
-
- /** {@inheritDoc} */
- public Graphics2DAdapter getGraphics2DAdapter() {
- return new Java2DGraphics2DAdapter();
- }
-
- /**
- * Sets the new scale factor.
- * @param newScaleFactor ]0 ; 1]
- */
- public void setScaleFactor(double newScaleFactor) {
- scaleFactor = newScaleFactor;
- }
-
- /** @return the scale factor */
- public double getScaleFactor() {
- return scaleFactor;
- }
-
- /** {@inheritDoc} */
- public void startRenderer(OutputStream out) throws IOException {
- super.startRenderer(out);
- // do nothing by default
- }
-
- /** {@inheritDoc} */
- public void stopRenderer() throws IOException {
- log.debug("Java2DRenderer stopped");
- renderingDone = true;
- int numberOfPages = currentPageNumber;
- // TODO set all vars to null for gc
- if (numberOfPages == 0) {
- new FOPException("No page could be rendered");
- }
- }
-
- /** @return true if the renderer is not currently processing */
- public boolean isRenderingDone() {
- return this.renderingDone;
- }
-
- /**
- * @return The 0-based current page number
- */
- public int getCurrentPageNumber() {
- return currentPageNumber;
- }
-
- /**
- * @param c the 0-based current page number
- */
- public void setCurrentPageNumber(int c) {
- this.currentPageNumber = c;
- }
-
- /**
- * Returns the number of pages available. This method is also part of the Pageable interface.
- * @return The 0-based total number of rendered pages
- * @see java.awt.print.Pageable
- */
- public int getNumberOfPages() {
- return pageViewportList.size();
- }
-
- /**
- * Clears the ViewportList.
- * Used if the document is reloaded.
- */
- public void clearViewportList() {
- pageViewportList.clear();
- setCurrentPageNumber(0);
- }
-
- /**
- * This method override only stores the PageViewport in a List. No actual
- * rendering is performed here. A renderer override renderPage() to get the
- * freshly produced PageViewport, and render them on the fly (producing the
- * desired BufferedImages by calling getPageImage(), which lazily starts the
- * rendering process).
- *
- * @param pageViewport the <code>PageViewport</code> object supplied by
- * the Area Tree
- * @throws IOException In case of an I/O error
- * @see org.apache.fop.render.Renderer
- */
- public void renderPage(PageViewport pageViewport) throws IOException {
- rememberPage((PageViewport)pageViewport.clone());
- //The clone() call is necessary as we store the page for later. Otherwise, the
- //RenderPagesModel calls PageViewport.clear() to release memory as early as possible.
- currentPageNumber++;
- }
-
- /**
- * Stores the pageViewport in a list of page viewports so they can be rendered later.
- * Subclasses can override this method to filter pages, for example.
- * @param pageViewport the page viewport
- */
- protected void rememberPage(PageViewport pageViewport) {
- assert pageViewport.getPageIndex() >= 0;
- pageViewportList.add(pageViewport);
- }
-
- /**
- * Generates a desired page from the renderer's page viewport list.
- *
- * @param pageViewport the PageViewport to be rendered
- * @return the <code>java.awt.image.BufferedImage</code> corresponding to
- * the page or null if the page doesn't exist.
- */
- public BufferedImage getPageImage(PageViewport pageViewport) {
-
- this.currentPageViewport = pageViewport;
- try {
- Rectangle2D bounds = pageViewport.getViewArea();
- pageWidth = (int) Math.round(bounds.getWidth() / 1000f);
- pageHeight = (int) Math.round(bounds.getHeight() / 1000f);
-
- log.info(
- "Rendering Page " + pageViewport.getPageNumberString()
- + " (pageWidth " + pageWidth + ", pageHeight "
- + pageHeight + ")");
-
- double scaleX = scaleFactor
- * (25.4 / FopFactoryConfigurator.DEFAULT_TARGET_RESOLUTION)
- / userAgent.getTargetPixelUnitToMillimeter();
- double scaleY = scaleFactor
- * (25.4 / FopFactoryConfigurator.DEFAULT_TARGET_RESOLUTION)
- / userAgent.getTargetPixelUnitToMillimeter();
- int bitmapWidth = (int) ((pageWidth * scaleX) + 0.5);
- int bitmapHeight = (int) ((pageHeight * scaleY) + 0.5);
-
-
- BufferedImage currentPageImage = getBufferedImage(bitmapWidth, bitmapHeight);
-
- Graphics2D graphics = currentPageImage.createGraphics();
- graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
- RenderingHints.VALUE_FRACTIONALMETRICS_ON);
- if (antialiasing) {
- graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
- RenderingHints.VALUE_ANTIALIAS_ON);
- graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
- RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
- }
- if (qualityRendering) {
- graphics.setRenderingHint(RenderingHints.KEY_RENDERING,
- RenderingHints.VALUE_RENDER_QUALITY);
- }
- graphics.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
- RenderingHints.VALUE_STROKE_PURE);
-
- // transform page based on scale factor supplied
- AffineTransform at = graphics.getTransform();
- at.scale(scaleX, scaleY);
- graphics.setTransform(at);
-
- // draw page frame
- if (!transparentPageBackground) {
- graphics.setColor(Color.white);
- graphics.fillRect(0, 0, pageWidth, pageHeight);
- }
- graphics.setColor(Color.black);
- graphics.drawRect(-1, -1, pageWidth + 2, pageHeight + 2);
- graphics.drawLine(pageWidth + 2, 0, pageWidth + 2, pageHeight + 2);
- graphics.drawLine(pageWidth + 3, 1, pageWidth + 3, pageHeight + 3);
- graphics.drawLine(0, pageHeight + 2, pageWidth + 2, pageHeight + 2);
- graphics.drawLine(1, pageHeight + 3, pageWidth + 3, pageHeight + 3);
-
- state = new Java2DGraphicsState(graphics, this.fontInfo, at);
- try {
- // reset the current Positions
- currentBPPosition = 0;
- currentIPPosition = 0;
-
- // this toggles the rendering of all areas
- renderPageAreas(pageViewport.getPage());
- } finally {
- state = null;
- }
-
- return currentPageImage;
- } finally {
- this.currentPageViewport = null;
- }
- }
-
- /**
- * Returns a specific <code>BufferedImage</code> to paint a page image on. This method can
- * be overridden in subclasses to produce different image formats (ex. grayscale or b/w).
- * @param bitmapWidth width of the image in pixels
- * @param bitmapHeight heigth of the image in pixels
- * @return the newly created BufferedImage
- */
- protected BufferedImage getBufferedImage(int bitmapWidth, int bitmapHeight) {
- return new BufferedImage(
- bitmapWidth, bitmapHeight, BufferedImage.TYPE_INT_ARGB);
- }
-
- /**
- * Returns a page viewport.
- * @param pageIndex the page index (zero-based)
- * @return the requested PageViewport instance
- * @exception FOPException If the page is out of range.
- */
- public PageViewport getPageViewport(int pageIndex) throws FOPException {
- if (pageIndex < 0 || pageIndex >= pageViewportList.size()) {
- throw new FOPException("Requested page number is out of range: " + pageIndex
- + "; only " + pageViewportList.size()
- + " page(s) available.");
- }
- return (PageViewport) pageViewportList.get(pageIndex);
- }
-
- /**
- * Generates a desired page from the renderer's page viewport list.
- *
- * @param pageNum the 0-based page number to generate
- * @return the <code>java.awt.image.BufferedImage</code> corresponding to
- * the page or null if the page doesn't exist.
- * @throws FOPException If there's a problem preparing the page image
- */
- public BufferedImage getPageImage(int pageNum) throws FOPException {
- return getPageImage(getPageViewport(pageNum));
- }
-
- /** Saves the graphics state of the rendering engine. */
- protected void saveGraphicsState() {
- // push (and save) the current graphics state
- stateStack.push(state);
- state = new Java2DGraphicsState(state);
- }
-
- /** Restores the last graphics state of the rendering engine. */
- protected void restoreGraphicsState() {
- state.dispose();
- state = (Java2DGraphicsState)stateStack.pop();
- }
-
- /** {@inheritDoc} */
- protected void concatenateTransformationMatrix(AffineTransform at) {
- state.transform(at);
- }
-
- /** {@inheritDoc} */
- protected void startVParea(CTM ctm, Rectangle2D clippingRect) {
-
- saveGraphicsState();
-
- if (clippingRect != null) {
- clipRect((float)clippingRect.getX() / 1000f,
- (float)clippingRect.getY() / 1000f,
- (float)clippingRect.getWidth() / 1000f,
- (float)clippingRect.getHeight() / 1000f);
- }
-
- // Set the given CTM in the graphics state
- //state.setTransform(new AffineTransform(CTMHelper.toPDFArray(ctm)));
- state.transform(new AffineTransform(CTMHelper.toPDFArray(ctm)));
- }
-
- /**
- * {@inheritDoc}
- */
- protected void endVParea() {
- restoreGraphicsState();
- }
-
- /**
- * {@inheritDoc}
- */
- protected List breakOutOfStateStack() {
- log.debug("Block.FIXED --> break out");
- List breakOutList;
- breakOutList = new java.util.ArrayList();
- while (!stateStack.isEmpty()) {
- breakOutList.add(0, state);
- //We only pop, we don't dispose, because we can use the instances again later
- state = (Java2DGraphicsState)stateStack.pop();
- }
- return breakOutList;
- }
-
- /**
- * {@inheritDoc}
- * java.util.List)
- */
- protected void restoreStateStackAfterBreakOut(List breakOutList) {
- log.debug("Block.FIXED --> restoring context after break-out");
-
- Iterator i = breakOutList.iterator();
- while (i.hasNext()) {
- Java2DGraphicsState s = (Java2DGraphicsState)i.next();
- stateStack.push(state);
- state = s;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- protected void updateColor(Color col, boolean fill) {
- state.updateColor(col);
- }
-
- /**
- * {@inheritDoc}
- */
- protected void clip() {
- if (currentPath == null) {
- throw new IllegalStateException("No current path available!");
- }
- state.updateClip(currentPath);
- currentPath = null;
- }
-
- /**
- * {@inheritDoc}
- */
- protected void closePath() {
- currentPath.closePath();
- }
-
- /**
- * {@inheritDoc}
- */
- protected void lineTo(float x, float y) {
- if (currentPath == null) {
- currentPath = new GeneralPath();
- }
- currentPath.lineTo(x, y);
- }
-
- /**
- * {@inheritDoc}
- */
- protected void moveTo(float x, float y) {
- if (currentPath == null) {
- currentPath = new GeneralPath();
- }
- currentPath.moveTo(x, y);
- }
-
- /**
- * {@inheritDoc}
- */
- protected void clipRect(float x, float y, float width, float height) {
- state.updateClip(new Rectangle2D.Float(x, y, width, height));
- }
-
- /**
- * {@inheritDoc}
- */
- protected void fillRect(float x, float y, float width, float height) {
- state.getGraph().fill(new Rectangle2D.Float(x, y, width, height));
- }
-
- /**
- * {@inheritDoc}
- */
- protected void drawBorderLine(float x1, float y1, float x2, float y2,
- boolean horz, boolean startOrBefore, int style, Color col) {
- Graphics2D g2d = state.getGraph();
- drawBorderLine(new Rectangle2D.Float(x1, y1, x2 - x1, y2 - y1),
- horz, startOrBefore, style, col, g2d);
- }
-
- /**
- * Draw a border segment of an XSL-FO style border.
- * @param lineRect the line defined by its bounding rectangle
- * @param horz true for horizontal border segments, false for vertical border segments
- * @param startOrBefore true for border segments on the start or before edge,
- * false for end or after.
- * @param style the border style (one of Constants.EN_DASHED etc.)
- * @param col the color for the border segment
- * @param g2d the Graphics2D instance to paint to
- */
- public static void drawBorderLine(Rectangle2D.Float lineRect,
- boolean horz, boolean startOrBefore, int style, Color col, Graphics2D g2d) {
- float x1 = lineRect.x;
- float y1 = lineRect.y;
- float x2 = x1 + lineRect.width;
- float y2 = y1 + lineRect.height;
- float w = lineRect.width;
- float h = lineRect.height;
- if ((w < 0) || (h < 0)) {
- log.error("Negative extent received. Border won't be painted.");
- return;
- }
- switch (style) {
- case Constants.EN_DASHED:
- g2d.setColor(col);
- if (horz) {
- float unit = Math.abs(2 * h);
- int rep = (int)(w / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = w / rep;
- float ym = y1 + (h / 2);
- BasicStroke s = new BasicStroke(h, BasicStroke.CAP_BUTT,
- BasicStroke.JOIN_MITER, 10.0f, new float[] {unit}, 0);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(x1, ym, x2, ym));
- } else {
- float unit = Math.abs(2 * w);
- int rep = (int)(h / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = h / rep;
- float xm = x1 + (w / 2);
- BasicStroke s = new BasicStroke(w, BasicStroke.CAP_BUTT,
- BasicStroke.JOIN_MITER, 10.0f, new float[] {unit}, 0);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(xm, y1, xm, y2));
- }
- break;
- case Constants.EN_DOTTED:
- g2d.setColor(col);
- if (horz) {
- float unit = Math.abs(2 * h);
- int rep = (int)(w / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = w / rep;
- float ym = y1 + (h / 2);
- BasicStroke s = new BasicStroke(h, BasicStroke.CAP_ROUND,
- BasicStroke.JOIN_MITER, 10.0f, new float[] {0, unit}, 0);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(x1, ym, x2, ym));
- } else {
- float unit = Math.abs(2 * w);
- int rep = (int)(h / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = h / rep;
- float xm = x1 + (w / 2);
- BasicStroke s = new BasicStroke(w, BasicStroke.CAP_ROUND,
- BasicStroke.JOIN_MITER, 10.0f, new float[] {0, unit}, 0);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(xm, y1, xm, y2));
- }
- break;
- case Constants.EN_DOUBLE:
- g2d.setColor(col);
- if (horz) {
- float h3 = h / 3;
- float ym1 = y1 + (h3 / 2);
- float ym2 = ym1 + h3 + h3;
- BasicStroke s = new BasicStroke(h3);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(x1, ym1, x2, ym1));
- g2d.draw(new Line2D.Float(x1, ym2, x2, ym2));
- } else {
- float w3 = w / 3;
- float xm1 = x1 + (w3 / 2);
- float xm2 = xm1 + w3 + w3;
- BasicStroke s = new BasicStroke(w3);
- g2d.setStroke(s);
- g2d.draw(new Line2D.Float(xm1, y1, xm1, y2));
- g2d.draw(new Line2D.Float(xm2, y1, xm2, y2));
- }
- break;
- case Constants.EN_GROOVE:
- case Constants.EN_RIDGE:
- float colFactor = (style == EN_GROOVE ? 0.4f : -0.4f);
- if (horz) {
- Color uppercol = lightenColor(col, -colFactor);
- Color lowercol = lightenColor(col, colFactor);
- float h3 = h / 3;
- float ym1 = y1 + (h3 / 2);
- g2d.setStroke(new BasicStroke(h3));
- g2d.setColor(uppercol);
- g2d.draw(new Line2D.Float(x1, ym1, x2, ym1));
- g2d.setColor(col);
- g2d.draw(new Line2D.Float(x1, ym1 + h3, x2, ym1 + h3));
- g2d.setColor(lowercol);
- g2d.draw(new Line2D.Float(x1, ym1 + h3 + h3, x2, ym1 + h3 + h3));
- } else {
- Color leftcol = lightenColor(col, -colFactor);
- Color rightcol = lightenColor(col, colFactor);
- float w3 = w / 3;
- float xm1 = x1 + (w3 / 2);
- g2d.setStroke(new BasicStroke(w3));
- g2d.setColor(leftcol);
- g2d.draw(new Line2D.Float(xm1, y1, xm1, y2));
- g2d.setColor(col);
- g2d.draw(new Line2D.Float(xm1 + w3, y1, xm1 + w3, y2));
- g2d.setColor(rightcol);
- g2d.draw(new Line2D.Float(xm1 + w3 + w3, y1, xm1 + w3 + w3, y2));
- }
- break;
- case Constants.EN_INSET:
- case Constants.EN_OUTSET:
- colFactor = (style == EN_OUTSET ? 0.4f : -0.4f);
- if (horz) {
- col = lightenColor(col, (startOrBefore ? 1 : -1) * colFactor);
- g2d.setStroke(new BasicStroke(h));
- float ym1 = y1 + (h / 2);
- g2d.setColor(col);
- g2d.draw(new Line2D.Float(x1, ym1, x2, ym1));
- } else {
- col = lightenColor(col, (startOrBefore ? 1 : -1) * colFactor);
- float xm1 = x1 + (w / 2);
- g2d.setStroke(new BasicStroke(w));
- g2d.setColor(col);
- g2d.draw(new Line2D.Float(xm1, y1, xm1, y2));
- }
- break;
- case Constants.EN_HIDDEN:
- break;
- default:
- g2d.setColor(col);
- if (horz) {
- float ym = y1 + (h / 2);
- g2d.setStroke(new BasicStroke(h));
- g2d.draw(new Line2D.Float(x1, ym, x2, ym));
- } else {
- float xm = x1 + (w / 2);
- g2d.setStroke(new BasicStroke(w));
- g2d.draw(new Line2D.Float(xm, y1, xm, y2));
- }
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public void renderText(TextArea text) {
- renderInlineAreaBackAndBorders(text);
-
- int rx = currentIPPosition + text.getBorderAndPaddingWidthStart();
- int bl = currentBPPosition + text.getOffset() + text.getBaselineOffset();
- int saveIP = currentIPPosition;
-
- Font font = getFontFromArea(text);
- state.updateFont(font.getFontName(), font.getFontSize());
- saveGraphicsState();
- AffineTransform at = new AffineTransform();
- at.translate(rx / 1000f, bl / 1000f);
- state.transform(at);
- renderText(text, state.getGraph(), font);
- restoreGraphicsState();
-
- currentIPPosition = saveIP + text.getAllocIPD();
- //super.renderText(text);
-
- // rendering text decorations
- Typeface tf = (Typeface) fontInfo.getFonts().get(font.getFontName());
- int fontsize = text.getTraitAsInteger(Trait.FONT_SIZE);
- renderTextDecoration(tf, fontsize, text, bl, rx);
- }
-
- /**
- * Renders a TextArea to a Graphics2D instance. Adjust the coordinate system so that the
- * start of the baseline of the first character is at coordinate (0,0).
- * @param text the TextArea
- * @param g2d the Graphics2D to render to
- * @param font the font to paint with
- */
- public static void renderText(TextArea text, Graphics2D g2d, Font font) {
-
- Color col = (Color) text.getTrait(Trait.COLOR);
- g2d.setColor(col);
-
- float textCursor = 0;
-
- Iterator iter = text.getChildAreas().iterator();
- while (iter.hasNext()) {
- InlineArea child = (InlineArea)iter.next();
- if (child instanceof WordArea) {
- WordArea word = (WordArea)child;
- String s = word.getWord();
- int[] letterAdjust = word.getLetterAdjustArray();
- GlyphVector gv = g2d.getFont().createGlyphVector(g2d.getFontRenderContext(), s);
- double additionalWidth = 0.0;
- if (letterAdjust == null
- && text.getTextLetterSpaceAdjust() == 0
- && text.getTextWordSpaceAdjust() == 0) {
- //nop
- } else {
- int[] offsets = getGlyphOffsets(s, font, text, letterAdjust);
- float cursor = 0.0f;
- for (int i = 0; i < offsets.length; i++) {
- Point2D pt = gv.getGlyphPosition(i);
- pt.setLocation(cursor, pt.getY());
- gv.setGlyphPosition(i, pt);
- cursor += offsets[i] / 1000f;
- }
- additionalWidth = cursor - gv.getLogicalBounds().getWidth();
- }
- g2d.drawGlyphVector(gv, textCursor, 0);
- textCursor += gv.getLogicalBounds().getWidth() + additionalWidth;
- } else if (child instanceof SpaceArea) {
- SpaceArea space = (SpaceArea)child;
- String s = space.getSpace();
- char sp = s.charAt(0);
- int tws = (space.isAdjustable()
- ? text.getTextWordSpaceAdjust()
- + 2 * text.getTextLetterSpaceAdjust()
- : 0);
-
- textCursor += (font.getCharWidth(sp) + tws) / 1000f;
- } else {
- throw new IllegalStateException("Unsupported child element: " + child);
- }
- }
- }
-
- private static int[] getGlyphOffsets(String s, Font font, TextArea text,
- int[] letterAdjust) {
- int textLen = s.length();
- int[] offsets = new int[textLen];
- for (int i = 0; i < textLen; i++) {
- final char c = s.charAt(i);
- final char mapped = font.mapChar(c);
- int wordSpace;
-
- if (CharUtilities.isAdjustableSpace(mapped)) {
- wordSpace = text.getTextWordSpaceAdjust();
- } else {
- wordSpace = 0;
- }
- int cw = font.getWidth(mapped);
- int ladj = (letterAdjust != null && i < textLen - 1 ? letterAdjust[i + 1] : 0);
- int tls = (i < textLen - 1 ? text.getTextLetterSpaceAdjust() : 0);
- offsets[i] = cw + ladj + tls + wordSpace;
- }
- return offsets;
- }
-
- /**
- * 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) {
- renderInlineAreaBackAndBorders(area);
-
- // TODO leader-length: 25%, 50%, 75%, 100% not working yet
- // TODO Colors do not work on Leaders yet
-
- float startx = (currentIPPosition + area.getBorderAndPaddingWidthStart()) / 1000f;
- float starty = ((currentBPPosition + area.getOffset()) / 1000f);
- float endx = (currentIPPosition + area.getBorderAndPaddingWidthStart()
- + area.getIPD()) / 1000f;
-
- Color col = (Color) area.getTrait(Trait.COLOR);
- state.updateColor(col);
-
- Line2D line = new Line2D.Float();
- line.setLine(startx, starty, endx, starty);
- float ruleThickness = area.getRuleThickness() / 1000f;
-
- int style = area.getRuleStyle();
- switch (style) {
- case EN_SOLID:
- case EN_DASHED:
- case EN_DOUBLE:
- drawBorderLine(startx, starty, endx, starty + ruleThickness,
- true, true, style, col);
- break;
- case EN_DOTTED:
- //TODO Dots should be shifted to the left by ruleThickness / 2
- state.updateStroke(ruleThickness, style);
- float rt2 = ruleThickness / 2f;
- line.setLine(line.getX1(), line.getY1() + rt2, line.getX2(), line.getY2() + rt2);
- state.getGraph().draw(line);
- break;
- case EN_GROOVE:
- case EN_RIDGE:
- float half = area.getRuleThickness() / 2000f;
-
- state.updateColor(lightenColor(col, 0.6f));
- moveTo(startx, starty);
- lineTo(endx, starty);
- lineTo(endx, starty + 2 * half);
- lineTo(startx, starty + 2 * half);
- closePath();
- state.getGraph().fill(currentPath);
- currentPath = null;
- state.updateColor(col);
- if (style == EN_GROOVE) {
- moveTo(startx, starty);
- lineTo(endx, starty);
- lineTo(endx, starty + half);
- lineTo(startx + half, starty + half);
- lineTo(startx, starty + 2 * half);
- } else {
- moveTo(endx, starty);
- lineTo(endx, starty + 2 * half);
- lineTo(startx, starty + 2 * half);
- lineTo(startx, starty + half);
- lineTo(endx - half, starty + half);
- }
- closePath();
- state.getGraph().fill(currentPath);
- currentPath = null;
-
- case EN_NONE:
- // No rule is drawn
- break;
- default:
- } // end switch
-
- super.renderLeader(area);
- }
-
- /**
- * {@inheritDoc}
- */
- public void renderImage(Image image, Rectangle2D pos) {
- // endTextObject();
- String url = image.getURL();
- drawImage(url, pos);
- }
-
- /**
- * {@inheritDoc}
- */
- protected void drawImage(String uri, Rectangle2D pos, Map foreignAttributes) {
-
- int x = currentIPPosition + (int)Math.round(pos.getX());
- int y = currentBPPosition + (int)Math.round(pos.getY());
- uri = URISpecification.getURL(uri);
-
- ImageManager manager = getUserAgent().getFactory().getImageManager();
- ImageInfo info = null;
- try {
- ImageSessionContext sessionContext = getUserAgent().getImageSessionContext();
- info = manager.getImageInfo(uri, sessionContext);
- final ImageFlavor[] flavors = new ImageFlavor[]
- {ImageFlavor.GRAPHICS2D,
- ImageFlavor.BUFFERED_IMAGE,
- ImageFlavor.RENDERED_IMAGE,
- ImageFlavor.XML_DOM};
- Map hints = ImageUtil.getDefaultHints(sessionContext);
- org.apache.xmlgraphics.image.loader.Image img = manager.getImage(
- info, flavors, hints, sessionContext);
- if (img instanceof ImageGraphics2D) {
- ImageGraphics2D imageG2D = (ImageGraphics2D)img;
- int width = (int)pos.getWidth();
- int height = (int)pos.getHeight();
- RendererContext context = createRendererContext(
- x, y, width, height, foreignAttributes);
- getGraphics2DAdapter().paintImage(imageG2D.getGraphics2DImagePainter(),
- context, x, y, width, height);
- } else if (img instanceof ImageRendered) {
- ImageRendered imgRend = (ImageRendered)img;
- AffineTransform at = new AffineTransform();
- at.translate(x / 1000f, y / 1000f);
- double sx = pos.getWidth() / info.getSize().getWidthMpt();
- double sy = pos.getHeight() / info.getSize().getHeightMpt();
- sx *= userAgent.getSourceResolution() / info.getSize().getDpiHorizontal();
- sy *= userAgent.getSourceResolution() / info.getSize().getDpiVertical();
- at.scale(sx, sy);
- state.getGraph().drawRenderedImage(imgRend.getRenderedImage(), at);
- } else if (img instanceof ImageXMLDOM) {
- ImageXMLDOM imgXML = (ImageXMLDOM)img;
- renderDocument(imgXML.getDocument(), imgXML.getRootNamespace(),
- pos, foreignAttributes);
- }
- } 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} */
- protected RendererContext createRendererContext(int x, int y, int width, int height,
- Map foreignAttributes) {
- RendererContext context = super.createRendererContext(
- x, y, width, height, foreignAttributes);
- context.setProperty(Java2DRendererContextConstants.JAVA2D_STATE, state);
- return context;
- }
-
- /** {@inheritDoc} */
- public int print(Graphics g, PageFormat pageFormat, int pageIndex)
- throws PrinterException {
- if (pageIndex >= getNumberOfPages()) {
- return NO_SUCH_PAGE;
- }
-
- if (state != null) {
- throw new IllegalStateException("state must be null");
- }
- Graphics2D graphics = (Graphics2D) g;
- try {
- PageViewport viewport = getPageViewport(pageIndex);
- AffineTransform at = graphics.getTransform();
- state = new Java2DGraphicsState(graphics, this.fontInfo, at);
-
- // reset the current Positions
- currentBPPosition = 0;
- currentIPPosition = 0;
-
- renderPageAreas(viewport.getPage());
- return PAGE_EXISTS;
- } catch (FOPException e) {
- log.error(e);
- return NO_SUCH_PAGE;
- } finally {
- state = null;
- }
- }
-
- /** {@inheritDoc} */
- protected void beginTextObject() {
- //not necessary in Java2D
- }
-
- /** {@inheritDoc} */
- protected void endTextObject() {
- //not necessary in Java2D
- }
-
- /**
- * Controls the page background.
- * @param transparentPageBackground true if the background should be transparent
- */
- public void setTransparentPageBackground(boolean transparentPageBackground) {
- this.transparentPageBackground = transparentPageBackground;
- }
-
- }
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