Package org.apache.fop.fo.pagination

Source Code of org.apache.fop.fo.pagination.RegionBody$Maker

/*
* $Id: RegionBody.java,v 1.11.2.6 2003/04/11 00:24:41 pietsch Exp $
* ============================================================================
*                    The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 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.pagination;

// FOP
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.properties.Overflow;
import org.apache.fop.apps.FOPException;
import org.apache.fop.layout.RegionArea;
import org.apache.fop.layout.BodyRegionArea;
import org.apache.fop.layout.BorderAndPadding;
import org.apache.fop.layout.BackgroundProps;
import org.apache.fop.layout.MarginProps;

/**
* Class modeling the fo:region-body object.
*
* @see <a href="@XSLFO-STD@#fo_region-body"
       target="_xslfostd">@XSLFO-STDID@
*     &para;6.4.13</a>
*/
public class RegionBody extends Region {


    public static class Maker extends FObj.Maker {
        public FObj make(FObj parent, PropertyList propertyList,
                        String systemId, int line, int column)
            throws FOPException {
            return new RegionBody(parent, propertyList, systemId, line, column);
        }

    }

    public static FObj.Maker maker() {
        return new RegionBody.Maker();
    }

    public static final String REGION_CLASS = "body";

    protected RegionBody(FObj parent, PropertyList propertyList,
                        String systemId, int line, int column)
        throws FOPException {
        super(parent, propertyList, systemId, line, column);
    }

    public String getName() {
        return "fo:region-body";
    }

    RegionArea makeRegionArea(int allocationRectangleXPosition,
                              int allocationRectangleYPosition,
                              int allocationRectangleWidth,
                              int allocationRectangleHeight) {

        // Common Border, Padding, and Background Properties
        BorderAndPadding bap = propMgr.getBorderAndPadding();
        BackgroundProps bProps = propMgr.getBackgroundProps();

        // Common Margin Properties-Block
        MarginProps mProps = propMgr.getMarginProps();

        // this.properties.get("clip");
        // this.properties.get("display-align");
        // this.properties.get("region-name");
        // this.properties.get("reference-orientation");
        // this.properties.get("writing-mode");

        BodyRegionArea body = new BodyRegionArea(allocationRectangleXPosition
                                                 + mProps.marginLeft,
                                                 allocationRectangleYPosition
                                                 - mProps.marginTop,
                                                 allocationRectangleWidth
                                                 - mProps.marginLeft
                                                 - mProps.marginRight,
                                                 allocationRectangleHeight
                                                 - mProps.marginTop
                                                 - mProps.marginBottom);

        body.setBackground(propMgr.getBackgroundProps());

        int overflow = this.properties.get("overflow").getEnum();
        String columnCountAsString =
            this.properties.get("column-count").getString();
        int columnCount = 1;
        try {
            if( columnCountAsString.charAt(0) >= '0' && columnCountAsString.charAt(0)<= '9') {
                columnCount = Integer.parseInt(columnCountAsString);
            } else {
                log.error("Bad value on region body 'column-count'");
            }
        } catch (NumberFormatException nfe) {
            log.error("Bad value on region body 'column-count'");
            columnCount = 1;
        }
        if ((columnCount > 1) && (overflow == Overflow.SCROLL)) {
            // recover by setting 'column-count' to 1. This is allowed but
            // not required by the spec.
            log.error("Setting 'column-count' to 1 because "
                                   + "'overflow' is set to 'scroll'");
            columnCount = 1;
        }
        body.setColumnCount(columnCount);

        int columnGap =
            this.properties.get("column-gap").getLength().mvalue();
        body.setColumnGap(columnGap);

        return body;
    }

    protected String getDefaultRegionName() {
        return "xsl-region-body";
    }

    public String getRegionClass() {
        return REGION_CLASS;
    }

}
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