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- /*-- $Id$ --
-
- ============================================================================
- 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/>.
-
- */
-
- package org.apache.fop.fo.flow;
-
- // FOP
- import org.apache.fop.fo.*;
- import org.apache.fop.fo.properties.*;
- import org.apache.fop.layout.*;
- import org.apache.fop.layout.inline.*;
- import org.apache.fop.layout.BlockArea;
- import org.apache.fop.layout.FontState;
- import org.apache.fop.apps.FOPException;
-
- // Java
- import java.util.Enumeration;
-
- public class InstreamForeignObject extends FObj {
- /**
- * inner class for making SVG objects.
- */
- public static class Maker extends FObj.Maker {
-
- /**
- * make an SVG object.
- *
- * @param parent the parent formatting object
- * @param propertyList the explicit properties of this object
- *
- * @return the SVG object
- */
- public FObj make(FObj parent, PropertyList propertyList)
- throws FOPException {
- return new InstreamForeignObject(parent, propertyList);
- }
- }
-
- /**
- * returns the maker for this object.
- *
- * @return the maker for SVG objects
- */
- public static FObj.Maker maker() {
- return new InstreamForeignObject.Maker();
- }
-
- FontState fs;
- int breakBefore;
- int breakAfter;
- int scaling;
- int width;
- int height;
- int contwidth;
- int contheight;
- boolean wauto;
- boolean hauto;
- boolean cwauto;
- boolean chauto;
- int spaceBefore;
- int spaceAfter;
- int startIndent;
- int endIndent;
-
- ForeignObjectArea areaCurrent;
-
- /**
- * constructs an instream-foreign-object object (called by Maker).
- *
- * @param parent the parent formatting object
- * @param propertyList the explicit properties of this object
- */
- public InstreamForeignObject(FObj parent, PropertyList propertyList) {
- super(parent, propertyList);
- this.name = "fo:instream-foreign-object";
- }
-
- /**
- * layout this formatting object.
- *
- * @param area the area to layout the object into
- *
- * @return the status of the layout
- */
- public Status layout(Area area) throws FOPException {
-
- if (this.marker == BREAK_AFTER) {
- return new Status(Status.OK);
- }
-
- if (this.marker == START) {
- /* retrieve properties */
- String id = this.properties.get("id").getString();
- String fontFamily = this.properties.get("font-family").getString();
- String fontStyle = this.properties.get("font-style").getString();
- String fontWeight = this.properties.get("font-weight").getString();
- int fontSize = this.properties.get("font-size").getLength().mvalue();
- // font-variant support
- // added by Eric SCHAEFFER
- int fontVariant =
- this.properties.get("font-variant").getEnum();
-
- this.fs = new FontState(area.getFontInfo(), fontFamily,
- fontStyle, fontWeight, fontSize, fontVariant);
-
- int align = this.properties.get("text-align").getEnum();
- int valign = this.properties.get("vertical-align").getEnum();
- int overflow = this.properties.get("overflow").getEnum();
-
- this.breakBefore = this.properties.get("break-before").getEnum();
- this.breakAfter = this.properties.get("break-after").getEnum();
- this.width = this.properties.get("width").getLength().mvalue();
- this.height = this.properties.get("height").getLength().mvalue();
- this.contwidth = this.properties.get("content-width").getLength().mvalue();
- this.contheight = this.properties.get("content-height").getLength().mvalue();
- this.wauto = this.properties.get("width").getLength().isAuto();
- this.hauto = this.properties.get("height").getLength().isAuto();
- this.cwauto = this.properties.get("content-width").getLength().isAuto();
- this.chauto = this.properties.get("content-height").getLength().isAuto();
-
- this.startIndent =
- this.properties.get("start-indent").getLength().mvalue();
- this.endIndent =
- this.properties.get("end-indent").getLength().mvalue();
- this.spaceBefore =
- this.properties.get("space-before.optimum").getLength().mvalue();
- this.spaceAfter =
- this.properties.get("space-after.optimum").getLength().mvalue();
-
- this.scaling = this.properties.get("scaling").getEnum();
-
- area.getIDReferences().createID(id);
- /* if is embedded in a block area */
- if (area instanceof BlockArea) {
- /* temporarily end the block area */
- // area.end();
- }
- if(this.areaCurrent == null) {
- this.areaCurrent =
- new ForeignObjectArea(fs, area.getAllocationWidth());
-
- this.areaCurrent.start();
- areaCurrent.setWidth(this.width);
- areaCurrent.setHeight(this.height);
- areaCurrent.setContentWidth(this.contwidth);
- areaCurrent.setContentHeight(this.contheight);
- areaCurrent.setScaling(this.scaling);
- areaCurrent.setAlign(align);
- areaCurrent.setVerticalAlign(valign);
- areaCurrent.setOverflow(overflow);
- areaCurrent.setSizeAuto(wauto, hauto);
- areaCurrent.setContentSizeAuto(cwauto, chauto);
-
- // this means that children can get the fontstate
- areaCurrent.setPage(area.getPage());
-
- int numChildren = this.children.size();
- if(numChildren > 1) {
- throw new FOPException("Only one child element is allowed in an instream-foreign-object");
- }
- /* layout foreign object */
- if(this.children.size() > 0) {
- FONode fo = (FONode) children.elementAt(0);
- Status status;
- // currently FONode must be an SVG
- if ((status = fo.layout(this.areaCurrent)).isIncomplete()) {
- return status;
- }
-
- /* finish off the foreign object area */
- this.areaCurrent.end();
- }
- }
-
- this.marker = 0;
-
- if (breakBefore == BreakBefore.PAGE || ((spaceBefore + areaCurrent.getEffectiveHeight()) > area.spaceLeft())) {
- return new Status(Status.FORCE_PAGE_BREAK);
- }
-
- if (breakBefore == BreakBefore.ODD_PAGE) {
- return new Status(Status.FORCE_PAGE_BREAK_ODD);
- }
-
- if (breakBefore == BreakBefore.EVEN_PAGE) {
- return new Status(Status.FORCE_PAGE_BREAK_EVEN);
- }
- }
-
- if (area instanceof BlockArea) {
- BlockArea ba = (BlockArea)area;
- LineArea la = ba.getCurrentLineArea();
- la.addPending();
- if(areaCurrent.getEffectiveWidth() > la.getRemainingWidth()) {
- la = ba.createNextLineArea();
- if(la == null) {
- return new Status(Status.AREA_FULL_NONE);
- }
- }
- la.addInlineArea(areaCurrent);
- } else {
- area.addChild(areaCurrent);
- area.increaseHeight(areaCurrent.getEffectiveHeight());
- }
-
- if (this.isInTableCell) {
- startIndent += forcedStartOffset;
- /* endIndent = areaCurrent.getEffectiveWidth() - forcedWidth -
- forcedStartOffset;*/
- }
-
- areaCurrent.setStartIndent(startIndent);
- // areaCurrent.setEndIndent(endIndent);
-
- /* if there is a space-before */
- if (spaceBefore != 0) {
- /* add a display space */
- // area.addDisplaySpace(spaceBefore);
- }
-
- /* add the SVG area to the containing area */
- // area.addChild(areaCurrent);
-
- areaCurrent.setPage(area.getPage());
-
- /* increase the height of the containing area accordingly */
- // area.increaseHeight(areaCurrent.getEffectiveHeight());
-
- /* if there is a space-after */
- if (spaceAfter != 0) {
- /* add a display space */
- // area.addDisplaySpace(spaceAfter);
- }
-
- /* if is embedded in a block area */
- if (area instanceof BlockArea) {
- /* re-start the block area */
- // area.start();
- }
-
- if (breakAfter == BreakAfter.PAGE) {
- this.marker = BREAK_AFTER;
- return new Status(Status.FORCE_PAGE_BREAK);
- }
-
- if (breakAfter == BreakAfter.ODD_PAGE) {
- this.marker = BREAK_AFTER;
- return new Status(Status.FORCE_PAGE_BREAK_ODD);
- }
-
- if (breakAfter == BreakAfter.EVEN_PAGE) {
- this.marker = BREAK_AFTER;
- return new Status(Status.FORCE_PAGE_BREAK_EVEN);
- }
-
- /* return status */
- return new Status(Status.OK);
- }
- }
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