/*
* 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.Rectangle;
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.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.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.FopFactoryConfig;
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.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.fo.Constants;
import org.apache.fop.fonts.Font;
import org.apache.fop.fonts.FontCollection;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.fonts.FontManager;
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.extensions.prepress.PageBoundaries;
import org.apache.fop.render.extensions.prepress.PageScale;
import org.apache.fop.render.pdf.CTMHelper;
import org.apache.fop.util.CharUtilities;
import org.apache.fop.util.ColorUtil;
import static org.apache.fop.render.java2d.Java2DRendererOption.JAVA2D_TRANSPARENT_PAGE_BACKGROUND;
/**
* 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 {
/** The scale factor for the image size, values: ]0 ; 1] */
protected double scaleFactor = 1;
/** The page width in pixels */
protected int pageWidth;
/** The page height in pixels */
protected int pageHeight;
/** List of Viewports */
protected List pageViewportList = new java.util.ArrayList();
/** The 0-based current page number */
private int currentPageNumber;
/** true if anti-aliasing 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;
/** The current state, holds a Graphics2D and its context */
protected Java2DGraphicsState state;
private final Stack stateStack = new Stack();
/** true if the renderer has finished rendering all the pages */
private boolean renderingDone;
private GeneralPath currentPath;
/**
* Default constructor
*
* @param userAgent the user agent that contains configuration details. This cannot be null.
*/
public Java2DRenderer(FOUserAgent userAgent) {
super(userAgent);
// MH: necessary? the caller has access to FOUserAgent
userAgent.setRendererOverride(this); // for document regeneration
String s = (String) userAgent.getRendererOption(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;
final Java2DFontMetrics java2DFontMetrics = new Java2DFontMetrics();
FontManager fontManager = userAgent.getFontManager();
FontCollection[] fontCollections = new FontCollection[] {
new Base14FontCollection(java2DFontMetrics),
new InstalledFontCollection(java2DFontMetrics),
new ConfiguredFontCollection(fontManager.getResourceResolver(), getFontList(),
userAgent.isComplexScriptFeaturesEnabled())
};
fontManager.setup(getFontInfo(), fontCollections);
}
/** {@inheritDoc} */
public Graphics2DAdapter getGraphics2DAdapter() {
return new Java2DGraphics2DAdapter();
}
/**
* Sets the new scale factor.
* @param newScaleFactor ]0 ; 1]
*/
public void setScaleFactor(double newScaleFactor) {
this.scaleFactor = newScaleFactor;
}
/** @return the scale factor */
public double getScaleFactor() {
return this.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
}
/** @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
* @throws FOPException if cloning of pageViewport is not supported
* @see org.apache.fop.render.Renderer
*/
public void renderPage(PageViewport pageViewport) throws IOException, FOPException {
try {
rememberPage((PageViewport)pageViewport.clone());
} catch (CloneNotSupportedException e) {
throw new FOPException(e);
}
//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 {
PageBoundaries boundaries = new PageBoundaries(
pageViewport.getViewArea().getSize(), pageViewport.getForeignAttributes());
Rectangle bounds = boundaries.getCropBox();
Rectangle bleedBox = boundaries.getBleedBox();
this.pageWidth = (int) Math.round(bounds.getWidth() / 1000f);
this.pageHeight = (int) Math.round(bounds.getHeight() / 1000f);
log.info(
"Rendering Page " + pageViewport.getPageNumberString()
+ " (pageWidth " + pageWidth + ", pageHeight "
+ pageHeight + ")");
// set scale factor
double scaleX = scaleFactor;
double scaleY = scaleFactor;
String scale = currentPageViewport.getForeignAttributes().get(
PageScale.EXT_PAGE_SCALE);
Point2D scales = PageScale.getScale(scale);
if (scales != null) {
scaleX *= scales.getX();
scaleY *= scales.getY();
}
scaleX = scaleX
* (UnitConv.IN2MM / FopFactoryConfig.DEFAULT_TARGET_RESOLUTION)
/ userAgent.getTargetPixelUnitToMillimeter();
scaleY = scaleY
* (UnitConv.IN2MM / FopFactoryConfig.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);
at.translate(bounds.getMinX() / -1000f, bounds.getMinY() / -1000f);
graphics.setTransform(at);
// draw page frame
if (!transparentPageBackground) {
graphics.setColor(Color.white);
graphics.fillRect(
(int)Math.round(bleedBox.getMinX() / 1000f),
(int)Math.round(bleedBox.getMinY() / 1000f),
(int)Math.round(bleedBox.getWidth() / 1000f),
(int)Math.round(bleedBox.getHeight() / 1000f));
}
/* why did we have this???
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, Rectangle 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 void startLayer(String layer) {
}
/** {@inheritDoc} */
protected void endLayer() {
}
/** {@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} */
protected void restoreStateStackAfterBreakOut(List breakOutList) {
log.debug("Block.FIXED --> restoring context after break-out");
for (Object aBreakOutList : breakOutList) {
Java2DGraphicsState s = (Java2DGraphicsState) aBreakOutList;
stateStack.push(state);
this.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();
float width = x2 - x1;
float height = y2 - y1;
drawBorderLine(new Rectangle2D.Float(x1, y1, width, height),
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 = ColorUtil.lightenColor(col, -colFactor);
Color lowercol = ColorUtil.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 = ColorUtil.lightenColor(col, -colFactor);
Color rightcol = ColorUtil.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 = ColorUtil.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 = ColorUtil.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.getBlockProgressionOffset() + 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 = 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;
for (Object child : text.getChildAreas()) {
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.getBlockProgressionOffset()) / 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(ColorUtil.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;
break;
case EN_NONE:
// No rule is drawn
break;
default:
break;
} // end switch
super.renderLeader(area);
}
/** {@inheritDoc} */
public void renderImage(Image image, Rectangle2D pos) {
// endTextObject();
String url = image.getURL();
drawImage(url, pos);
}
private static final ImageFlavor[] FLAVOURS = new ImageFlavor[]
{ImageFlavor.GRAPHICS2D,
ImageFlavor.BUFFERED_IMAGE,
ImageFlavor.RENDERED_IMAGE,
ImageFlavor.XML_DOM};
/** {@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().getImageManager();
ImageInfo info = null;
try {
ImageSessionContext sessionContext = getUserAgent().getImageSessionContext();
info = manager.getImageInfo(uri, sessionContext);
Map hints = ImageUtil.getDefaultHints(sessionContext);
org.apache.xmlgraphics.image.loader.Image img = manager.getImage(
info, FLAVOURS, 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;
}
}