/*-- $Id: MIFRenderer.java,v 1.4 2001/05/20 23:55:34 arved Exp $ --
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "FOP" and "Apache Software Foundation" must not be used to
endorse or promote products derived from this software without prior
written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
James Tauber <jtauber@jtauber.com>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
// Author : Seshadri G
package org.apache.fop.render.mif;
// FOP
import org.apache.fop.render.Renderer;
import org.apache.fop.messaging.MessageHandler;
import org.apache.fop.image.ImageArea;
import org.apache.fop.image.FopImage;
import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.properties.*;
import org.apache.fop.fo.*;
import org.apache.fop.layout.*;
import org.apache.fop.layout.inline.*;
import org.apache.fop.datatypes.*;
import org.apache.fop.svg.*;
import org.apache.fop.mif.*;
import org.apache.fop.layout.*;
import org.apache.fop.image.*;
import org.w3c.dom.*;
import org.w3c.dom.svg.*;
import org.w3c.dom.css.*;
import org.w3c.dom.svg.SVGLength;
// Java
import java.io.IOException;
import java.io.OutputStream;
import java.util.Enumeration;
import java.awt.Rectangle;
import java.util.Vector;
import java.util.Hashtable;
/**
* Renderer that renders areas to MIF
*/
public class MIFRenderer implements Renderer {
private String currentFontName;
private String currentFontSize;
private int pageHeight;
private int pageWidth;
/** the current vertical position in millipoints from bottom */
protected int currentYPosition = 0;
/** the current horizontal position in millipoints from left */
protected int currentXPosition = 0;
/** the horizontal position of the current area container */
private int currentAreaContainerXPosition = 0;
/** the MIF Document being created */
protected MIFDocument mifDoc;
/* is a table currently open? */
private boolean inTable=false;
/** options */
protected Hashtable options;
/**
* create the MIF renderer
*/
public MIFRenderer() {
this.mifDoc = new MIFDocument();
}
/** set up renderer options */
public void setOptions(Hashtable options) {
this.options = options;
}
/**
* render the areas into MIF
*
* @param areaTree the laid-out area tree
* @param writer the PrintWriter to write the MIF with
*/
public void render(AreaTree areaTree,
OutputStream stream) throws IOException, FOPException {
MessageHandler.logln("rendering areas to MIF");
// idReferences=areaTree.getIDReferences();
//this.pdfResources = this.pdfDoc.getResources();
//this.pdfDoc.setIDReferences(idReferences);
Enumeration e = areaTree.getPages().elements();
while (e.hasMoreElements()) {
this.renderPage((Page) e.nextElement());
}
// MessageHandler.logln("writing out MIF");
this.mifDoc.output(stream);
stream.close();
}
/** set up the given FontInfo */
public void setupFontInfo(FontInfo fontInfo) {
FontSetup.setup(fontInfo);
//FontSetup.addToFontFormat(this.mifDoc, fontInfo);
}
/** set the producer of the rendering */
public void setProducer(String producer) {}
public void renderAreaContainer(AreaContainer area) {
if (area.foCreator != null && area.foCreator.getName() == "fo:table") {
this.mifDoc.createTable();
this.inTable=true;
}
else
if (area.foCreator != null && area.foCreator.getName() == "fo:table-body") {
this.mifDoc.setCurrent("fo:table-body");
}
else
if (area.foCreator != null && area.foCreator.getName() == "fo:table-column") {
int colWidth=((org.apache.fop.fo.flow.TableColumn) area.foCreator).getColumnWidth();
this.mifDoc.setColumnProp(colWidth);
}
else
if (area.foCreator != null && area.foCreator.getName() == "fo:table-row") {
this.mifDoc.startRow();
}
else
if (area.foCreator != null && area.foCreator.getName() == "fo:table-cell") {
int rowSpan=((org.apache.fop.fo.flow.TableCell) area.foCreator).getNumRowsSpanned();
int colSpan=((org.apache.fop.fo.flow.TableCell) area.foCreator).getNumColumnsSpanned();
this.mifDoc.startCell(rowSpan,colSpan);
}
else
if (inTable) {
inTable=false;
this.mifDoc.endTable();
}
int saveY = this.currentYPosition;
int saveX = this.currentAreaContainerXPosition;
if (area.getPosition() == Position.ABSOLUTE) {
// Y position is computed assuming positive Y axis, adjust for negative postscript one
this.currentYPosition =area.getYPosition() - 2 * area.getPaddingTop() - 2 * area.getBorderTopWidth();
this.currentAreaContainerXPosition = area.getXPosition();
} else if (area.getPosition() == Position.RELATIVE) {
this.currentYPosition -= area.getYPosition();
this.currentAreaContainerXPosition += area.getXPosition();
} else if (area.getPosition() == Position.STATIC) {
this.currentYPosition -=
area.getPaddingTop() + area.getBorderTopWidth();
this.currentAreaContainerXPosition +=area.getPaddingLeft() + area.getBorderLeftWidth();
}
this.currentXPosition = this.currentAreaContainerXPosition;
doFrame(area);
Enumeration e = area.getChildren().elements();
while (e.hasMoreElements()) {
Box b = (Box) e.nextElement();
b.render(this);
}
if (area.getPosition() != Position.STATIC) {
this.currentYPosition = saveY;
this.currentAreaContainerXPosition = saveX;
} else
this.currentYPosition -= area.getHeight();
}
public void renderBodyAreaContainer(BodyAreaContainer area) {
int saveY = this.currentYPosition;
int saveX = this.currentAreaContainerXPosition;
if (area.getPosition() == Position.ABSOLUTE) {
// Y position is computed assuming positive Y axis, adjust for negative postscript one
this.currentYPosition = area.getYPosition();
this.currentAreaContainerXPosition = area.getXPosition();
} else if (area.getPosition() == Position.RELATIVE) {
this.currentYPosition -= area.getYPosition();
this.currentAreaContainerXPosition += area.getXPosition();
}
this.currentXPosition = this.currentAreaContainerXPosition;
int w, h;
int rx = this.currentAreaContainerXPosition;
w = area.getContentWidth();
h = area.getContentHeight();
int ry = this.currentYPosition;
ColorType bg = area.getBackgroundColor();
/*
// I'm not sure I should have to check for bg being null
// but I do
if ((bg != null) && (bg.alpha() == 0)) {
this.addRect(rx, ry, w, -h, new PDFColor(bg), new PDFColor(bg));
}
*/
/*
// floats & footnotes stuff
renderAreaContainer(area.getBeforeFloatReferenceArea());
renderAreaContainer(area.getFootnoteReferenceArea());
*/
// main reference area
Enumeration e = area.getMainReferenceArea().getChildren().elements();
while (e.hasMoreElements()) {
Box b = (Box) e.nextElement();
b.render(this); // span areas
}
if (area.getPosition() != Position.STATIC) {
this.currentYPosition = saveY;
this.currentAreaContainerXPosition = saveX;
} else
this.currentYPosition -= area.getHeight();
}
private void doFrame(Area area) {
int w, h;
int rx = this.currentAreaContainerXPosition;
w = area.getContentWidth();
if (area instanceof BlockArea)
rx += ((BlockArea)area).getStartIndent();
h = area.getContentHeight();
int ry = this.currentYPosition;
ColorType bg = area.getBackgroundColor();
rx = rx - area.getPaddingLeft();
ry = ry + area.getPaddingTop();
w = w + area.getPaddingLeft() + area.getPaddingRight();
h = h + area.getPaddingTop() + area.getPaddingBottom();
/*
// I'm not sure I should have to check for bg being null
// but I do
if ((bg != null) && (bg.alpha() == 0)) {
this.addRect(rx, ry, w, -h,
new PDFColor(bg),
new PDFColor(bg));
}
*/
rx = rx - area.getBorderLeftWidth();
ry = ry + area.getBorderTopWidth();
w = w + area.getBorderLeftWidth() + area.getBorderRightWidth();
h = h + area.getBorderTopWidth() + area.getBorderBottomWidth();
//Create a textrect with these dimensions.
//The y co-ordinate is measured +ve downwards so subtract page-height
this.mifDoc.setTextRectProp(rx,pageHeight-ry,w,h);
/*
BorderAndPadding bp = area.getBorderAndPadding();
if (area.getBorderTopWidth() != 0)
addLine(rx, ry, rx + w, ry, area.getBorderTopWidth(),
new PDFColor(bp.getBorderColor(BorderAndPadding.TOP)));
if (area.getBorderLeftWidth() != 0)
addLine(rx, ry, rx, ry - h, area.getBorderLeftWidth(),
new PDFColor(bp.getBorderColor(BorderAndPadding.LEFT)));
if (area.getBorderRightWidth() != 0)
addLine(rx + w, ry, rx + w, ry - h, area.getBorderRightWidth(),
new PDFColor(bp.getBorderColor(BorderAndPadding.RIGHT)));
if (area.getBorderBottomWidth() != 0)
addLine(rx, ry - h, rx + w, ry - h, area.getBorderBottomWidth(),
new PDFColor(bp.getBorderColor(BorderAndPadding.BOTTOM)));
*/
}
public void renderSpanArea(SpanArea area) {
//A span maps to a textframe
this.mifDoc.createTextRect(area.getColumnCount());
Enumeration e = area.getChildren().elements();
while (e.hasMoreElements()) {
Box b = (Box) e.nextElement();
b.render(this); // column areas
}
}
/** render the given block area */
public void renderBlockArea(BlockArea area) {
this.mifDoc.setBlockProp(area.getStartIndent(),area.getEndIndent());
Enumeration e = area.getChildren().elements();
while (e.hasMoreElements()) {
Box b = (Box) e.nextElement();
b.render(this);
}
}
/** render the given display space */
public void renderDisplaySpace(DisplaySpace space) {
int d = space.getSize();
this.currentYPosition -= d;
}
/** render the given SVG area */
public void renderSVGArea(SVGArea area) {}
/** render a foreign object area */
public void renderForeignObjectArea(ForeignObjectArea area) {
}
public void renderWordArea(WordArea area) {
String s;
s = area.getText();
this.mifDoc.addToStream(s);
this.currentXPosition += area.getContentWidth();
}
/** render the given image area */
public void renderImageArea(ImageArea area) {
int x = this.currentAreaContainerXPosition + area.getXOffset();
int y = this.currentYPosition;
int w = area.getContentWidth();
int h = area.getHeight();
this.currentYPosition -= h;
FopImage img = area.getImage();
if (img instanceof SVGImage) {
/* try {
SVGSVGElement svg =
((SVGImage) img).getSVGDocument().getRootElement();
currentStream.add("ET\nq\n" + (((float) w) / 1000f) +
" 0 0 " + (((float) h) / 1000f) + " " +
(((float) x) / 1000f) + " " +
(((float)(y - h)) / 1000f) + " cm\n");
// renderSVG(svg, (int) x, (int) y);
currentStream.add("Q\nBT\n");
} catch (FopImageException e) {
} */
MessageHandler.logln("Warning: SVG images not supported in this version");
} else {
String url = img.getURL();
this.mifDoc.addImage(url,x,pageHeight-y,w,h);
}
}
/** render the given inline area */
public void renderInlineArea(InlineArea area) {}
/** render the given inline space */
public void renderInlineSpace(InlineSpace space) {
// I dont need the size of space! I just need to
// leave a blank space each time
String s=" ";
this.mifDoc.addToStream(s); // cool!
this.currentXPosition += space.getSize();
}
/** render the given line area */
public void renderLineArea(LineArea area) {
int rx = this.currentAreaContainerXPosition
+ area.getStartIndent();
int ry = this.currentYPosition;
int w = area.getContentWidth();
int h = area.getHeight();
this.currentYPosition -= area.getPlacementOffset();
this.currentXPosition = rx;
int bl = this.currentYPosition;
//The start of a new linearea corresponds to a new para in FM
this.mifDoc.startLine();
Enumeration e = area.getChildren().elements();
while (e.hasMoreElements()) {
Box b = (Box) e.nextElement();
this.currentYPosition = ry - area.getPlacementOffset();
b.render(this);
}
this.currentYPosition = ry-h;
this.currentXPosition = rx;
}
/** render the given page */
public void renderPage(Page page) {
AreaContainer before, after;
BodyAreaContainer body;
body = page.getBody();
before = page.getBefore();
after = page.getAfter();
this.currentFontName = "";
this.currentFontSize = "0";
pageHeight=page.getHeight();
pageWidth=page.getWidth();
this.mifDoc.setDocumentHeightWidth(pageHeight,pageWidth);
this.mifDoc.createPage();
renderBodyAreaContainer(body);
// If the area is an instance of anything other than body, it goes into the
// corresponding master page.
if (before != null) {
this.mifDoc.createTextRect(1); // Create a rect with one col
renderAreaContainer(before);
}
if (after != null) {
this.mifDoc.createTextRect(1); // Create a rect with one col
renderAreaContainer(after);
}
}
/** render the given leader area */
public void renderLeaderArea(LeaderArea area) {}
}