- /*
- * 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.pcl;
-
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.Graphics2D;
- import java.awt.Rectangle;
- import java.awt.RenderingHints;
- import java.awt.image.BufferedImage;
- import java.io.BufferedInputStream;
- import java.io.BufferedOutputStream;
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.URI;
- import java.util.Map;
-
- import org.apache.commons.io.IOUtils;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.xmlgraphics.io.TempResourceURIGenerator;
- import org.apache.xmlgraphics.util.UnitConv;
-
- import org.apache.fop.apps.FopFactoryConfig;
- import org.apache.fop.apps.MimeConstants;
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.render.intermediate.AbstractBinaryWritingIFDocumentHandler;
- import org.apache.fop.render.intermediate.IFContext;
- import org.apache.fop.render.intermediate.IFDocumentHandlerConfigurator;
- import org.apache.fop.render.intermediate.IFException;
- import org.apache.fop.render.intermediate.IFPainter;
- import org.apache.fop.render.java2d.Java2DPainter;
- import org.apache.fop.render.java2d.Java2DUtil;
- import org.apache.fop.render.pcl.PCLRendererConfig.PCLRendererConfigParser;
- import org.apache.fop.render.pcl.extensions.PCLElementMapping;
- import org.apache.fop.render.pcl.fonts.PCLSoftFontManager;
-
- /**
- * {@link org.apache.fop.render.intermediate.IFDocumentHandler} implementation
- * that produces PCL 5.
- */
- public class PCLDocumentHandler extends AbstractBinaryWritingIFDocumentHandler
- implements PCLConstants {
-
- /** logging instance */
- private static Log log = LogFactory.getLog(PCLDocumentHandler.class);
-
- /** the temporary file in case of two-pass processing */
- private URI tempURI;
- private static final TempResourceURIGenerator TEMP_URI_GENERATOR = new TempResourceURIGenerator("pcl-optimize");
-
- /** Utility class for handling all sorts of peripheral tasks around PCL generation. */
- protected PCLRenderingUtil pclUtil;
-
- /** The PCL generator */
- private PCLGenerator gen;
-
- private PCLPageDefinition currentPageDefinition;
-
- /** contains the pageWith of the last printed page */
- private long pageWidth;
- /** contains the pageHeight of the last printed page */
- private long pageHeight;
-
- /** the current page image (only set when all-bitmap painting is activated) */
- private BufferedImage currentImage;
-
-
- /**
- * Default constructor.
- */
- public PCLDocumentHandler(IFContext context) {
- super(context);
- this.pclUtil = new PCLRenderingUtil(context.getUserAgent());
- }
-
- /** {@inheritDoc} */
- public boolean supportsPagesOutOfOrder() {
- return false;
- }
-
- /** {@inheritDoc} */
- public String getMimeType() {
- return MimeConstants.MIME_PCL;
- }
-
- /** {@inheritDoc} */
- public IFDocumentHandlerConfigurator getConfigurator() {
- return new PCLRendererConfigurator(getUserAgent(), new PCLRendererConfigParser());
- }
-
- /** {@inheritDoc} */
- @Override
- public void setDefaultFontInfo(FontInfo fontInfo) {
- FontInfo fi = Java2DUtil.buildDefaultJava2DBasedFontInfo(fontInfo, getUserAgent());
- setFontInfo(fi);
- }
-
- PCLRenderingUtil getPCLUtil() {
- return this.pclUtil;
- }
-
- PCLGenerator getPCLGenerator() {
- return this.gen;
- }
-
- /** @return the target resolution */
- protected int getResolution() {
- int resolution = Math.round(getUserAgent().getTargetResolution());
- if (resolution <= 300) {
- return 300;
- } else {
- return 600;
- }
- }
-
- //----------------------------------------------------------------------------------------------
-
- /** {@inheritDoc} */
- @Override
- public void startDocument() throws IFException {
- super.startDocument();
- try {
- final OutputStream out;
- if (pclUtil.isOptimizeResources()) {
- tempURI = TEMP_URI_GENERATOR.generate();
- out = new BufferedOutputStream(getUserAgent().getResourceResolver().getOutputStream(tempURI));
- } else {
- out = this.outputStream;
- }
-
- this.gen = new PCLGenerator(out, getResolution());
- this.gen.setDitheringQuality(pclUtil.getDitheringQuality());
-
- if (!pclUtil.isPJLDisabled()) {
- gen.universalEndOfLanguage();
- gen.writeText("@PJL COMMENT Produced by " + getUserAgent().getProducer() + "\n");
- if (getUserAgent().getTitle() != null) {
- gen.writeText("@PJL JOB NAME = \"" + getUserAgent().getTitle() + "\"\n");
- }
- gen.writeText("@PJL SET RESOLUTION = " + getResolution() + "\n");
- gen.writeText("@PJL ENTER LANGUAGE = PCL\n");
- }
- gen.resetPrinter();
- gen.setUnitOfMeasure(getResolution());
- gen.setRasterGraphicsResolution(getResolution());
- } catch (IOException e) {
- throw new IFException("I/O error in startDocument()", e);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void endDocumentHeader() throws IFException {
- }
-
- /** {@inheritDoc} */
- @Override
- public void endDocument() throws IFException {
- try {
- gen.separateJobs();
- gen.resetPrinter();
- if (!pclUtil.isPJLDisabled()) {
- gen.universalEndOfLanguage();
- }
-
- if (pclUtil.isOptimizeResources()) {
- IOUtils.closeQuietly(gen.getOutputStream());
- rewritePCLFile();
- }
- } catch (IOException ioe) {
- throw new IFException("I/O error in endDocument()", ioe);
- }
- super.endDocument();
- }
-
- private void rewritePCLFile() throws IOException {
- InputStream in = new BufferedInputStream(getUserAgent().getResourceResolver().getResource(tempURI));
- long offset = 0;
- for (Map.Entry<PCLSoftFontManager, Map<Typeface, Long>> fontManagerMapEntry : gen.fontManagerMap.entrySet()) {
- PCLSoftFontManager softFontManager = fontManagerMapEntry.getKey();
- for (Map.Entry<Typeface, Long> fontEntry : fontManagerMapEntry.getValue().entrySet()) {
- ByteArrayOutputStream fontData = softFontManager.makeSoftFont(fontEntry.getKey(), null);
- long pos = fontEntry.getValue();
- copy(in, pos - offset);
- outputStream.write(fontData.toByteArray());
- offset = pos;
- }
- }
- copy(in, Long.MAX_VALUE);
- this.outputStream.flush();
- IOUtils.closeQuietly(in);
- }
-
- private void copy(InputStream is, long len) throws IOException {
- while (len > 0) {
- int bufsize = (int) Math.min(1024, len);
- byte[] buf = new byte[bufsize];
- if (is.read(buf) == -1) {
- return;
- }
- outputStream.write(buf);
- len -= bufsize;
- }
- }
-
- /** {@inheritDoc} */
- public void startPageSequence(String id) throws IFException {
- //nop
- }
-
- /** {@inheritDoc} */
- public void endPageSequence() throws IFException {
- //nop
- }
-
- /** {@inheritDoc} */
- public void startPage(int index, String name, String pageMasterName, Dimension size)
- throws IFException {
-
- try {
- //Paper source
- Object paperSource = getContext().getForeignAttribute(
- PCLElementMapping.PCL_PAPER_SOURCE);
- if (paperSource != null) {
- gen.selectPaperSource(Integer.parseInt(paperSource.toString()));
- }
-
- //Output bin
- Object outputBin = getContext().getForeignAttribute(
- PCLElementMapping.PCL_OUTPUT_BIN);
- if (outputBin != null) {
- gen.selectOutputBin(Integer.parseInt(outputBin.toString()));
- }
-
- // Is Page duplex?
- Object pageDuplex = getContext().getForeignAttribute(
- PCLElementMapping.PCL_DUPLEX_MODE);
- if (pageDuplex != null) {
- gen.selectDuplexMode(Integer.parseInt(pageDuplex.toString()));
- }
-
- //Page size
- final long pagewidth = size.width;
- final long pageheight = size.height;
- selectPageFormat(pagewidth, pageheight);
- } catch (IOException ioe) {
- throw new IFException("I/O error in startPage()", ioe);
- }
- }
-
- /** {@inheritDoc} */
- public IFPainter startPageContent() throws IFException {
- if (pclUtil.getRenderingMode() == PCLRenderingMode.BITMAP) {
- return createAllBitmapPainter();
- } else {
- return new PCLPainter(this, this.currentPageDefinition);
- }
- }
-
- private IFPainter createAllBitmapPainter() {
- double scale = gen.getMaximumBitmapResolution()
- / FopFactoryConfig.DEFAULT_TARGET_RESOLUTION;
- Rectangle printArea = this.currentPageDefinition.getLogicalPageRect();
- int bitmapWidth = (int)Math.ceil(
- UnitConv.mpt2px(printArea.width, gen.getMaximumBitmapResolution()));
- int bitmapHeight = (int)Math.ceil(
- UnitConv.mpt2px(printArea.height, gen.getMaximumBitmapResolution()));
- this.currentImage = createBufferedImage(bitmapWidth, bitmapHeight);
- Graphics2D graphics2D = this.currentImage.createGraphics();
-
- if (!PCLGenerator.isJAIAvailable()) {
- RenderingHints hints = new RenderingHints(null);
- //These hints don't seem to make a difference :-( Not seeing any dithering on Sun Java.
- hints.put(RenderingHints.KEY_DITHERING,
- RenderingHints.VALUE_DITHER_ENABLE);
- graphics2D.addRenderingHints(hints);
- }
-
- //Ensure white page background
- graphics2D.setBackground(Color.WHITE);
- graphics2D.clearRect(0, 0, bitmapWidth, bitmapHeight);
-
- graphics2D.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
- RenderingHints.VALUE_FRACTIONALMETRICS_ON);
- graphics2D.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,
- RenderingHints.VALUE_STROKE_PURE);
- graphics2D.scale(scale / 1000f, scale / 1000f);
- graphics2D.translate(-printArea.x, -printArea.y);
-
- return new Java2DPainter(graphics2D, getContext(), getFontInfo(), this);
- }
-
- private BufferedImage createBufferedImage(int bitmapWidth, int bitmapHeight) {
- int bitmapType;
- if (PCLGenerator.isJAIAvailable()) {
- //TYPE_BYTE_GRAY was used to work around the lack of dithering when using
- //TYPE_BYTE_BINARY. Adding RenderingHints didn't help.
- bitmapType = BufferedImage.TYPE_BYTE_GRAY;
- //bitmapType = BufferedImage.TYPE_INT_RGB; //Use to enable Batik gradients
- } else {
- bitmapType = BufferedImage.TYPE_BYTE_BINARY;
- }
- return new BufferedImage(
- bitmapWidth, bitmapHeight, bitmapType);
- }
-
- /** {@inheritDoc} */
- public void endPageContent() throws IFException {
- if (this.currentImage != null) {
- try {
- Rectangle printArea = this.currentPageDefinition.getLogicalPageRect();
- gen.setCursorPos(0, 0);
- gen.paintBitmap(this.currentImage, printArea.getSize(), true, pclUtil);
- } catch (IOException ioe) {
- throw new IFException("I/O error while encoding page image", ioe);
- } finally {
- this.currentImage = null;
- }
- }
- }
-
- /** {@inheritDoc} */
- public void endPage() throws IFException {
- try {
- //Eject page
- gen.formFeed();
- } catch (IOException ioe) {
- throw new IFException("I/O error in endPage()", ioe);
- }
- }
-
- /** {@inheritDoc} */
- public void handleExtensionObject(Object extension) throws IFException {
- if (false) {
- //TODO Handle extensions
- } else {
- log.debug("Don't know how to handle extension object. Ignoring: "
- + extension + " (" + extension.getClass().getName() + ")");
- }
- }
-
- 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);
- }
- }
-
- }
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