/*
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * Licensed 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.fo.pagination;

// Java
import java.awt.Rectangle;

// FOP
import org.apache.fop.datatypes.ColorType;
import org.apache.fop.datatypes.FODimension;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.properties.CommonMarginBlock;
import org.apache.fop.fo.properties.Property;
import org.apache.fop.fo.FOPropertyMapping;

/**
 * The fo:region-body element.
 */
public class RegionBody extends Region {

    private ColorType backgroundColor;

    /**
     * @see org.apache.fop.fo.FONode#FONode(FONode)
     */
    public RegionBody(FONode parent) {
        super(parent);
    }

    /**
     * @see org.apache.fop.fo.pagination.Region#getViewportRectangle(FODimension)
     */
    public Rectangle getViewportRectangle (FODimension reldims) {
        /*
        * Use space-before and space-after which will use corresponding
        * absolute margin properties if specified. For indents:
        * try to get corresponding absolute margin property using the
        * writing-mode on the page (not on the region-body!). If that's not
        * set but indent is explicitly set, it will return that.
        */
        CommonMarginBlock mProps = propMgr.getMarginProps();
        int start = getRelMargin(PropertyList.START, PR_START_INDENT);
        Rectangle vpRect;
        if (this.wm == WritingMode.LR_TB || this.wm == WritingMode.RL_TB) {
            vpRect = new Rectangle(start, mProps.spaceBefore,
                    reldims.ipd - start
                        - getRelMargin(PropertyList.END, PR_END_INDENT),
                    reldims.bpd - mProps.spaceBefore - mProps.spaceAfter);
        } else {
            vpRect = new Rectangle(start, mProps.spaceBefore,
                    reldims.bpd - mProps.spaceBefore - mProps.spaceAfter,
                    reldims.ipd - start
                        - getRelMargin(PropertyList.END, PR_END_INDENT));
        }
        return vpRect;
    }

    /**
     * Get the relative margin using parent's writing mode, not own
     * writing mode.
     */
    private int getRelMargin(int reldir, int relPropId) {
        FObj parent = (FObj) getParent();
        String sPropName = "margin-"
                + parent.getPropertyList().getAbsoluteWritingMode(reldir);
        int propId = FOPropertyMapping.getPropertyId(sPropName);
        Property prop = propertyList.getExplicitOrShorthand(propId);
        if (prop == null) {
            prop = propertyList.getExplicitOrShorthand(relPropId);
        }
        return ((prop != null) ? prop.getLength().getValue() : 0);
    }

    /**
     * @see org.apache.fop.fo.pagination.Region#getDefaultRegionName()
     */
    protected String getDefaultRegionName() {
        return "xsl-region-body";
    }

    /**
     * @see org.apache.fop.fo.FObj#getName()
     */
    public String getName() {
        return "fo:region-body";
    }
    
    /**
     * @see org.apache.fop.fo.FObj#getNameId()
     */
    public int getNameId() {
        return FO_REGION_BODY;
    }
}

@@ -862,196 +862,36 @@
 .fo.
-FObj;%0Aimport org.apache.fop.fo.PropertyList;%0Aimport org.apache.fop.fo.properties.CommonMarginBlock;%0Aimport org.apache.fop.fo.properties.Property;%0Aimport org.apache.fop.fo.FOPropertyMapping
+properties.CommonMarginBlock
 ;%0A%0A/
@@ -1753,1350 +1753,214 @@
     
-int start = getRelMargin(PropertyList.START, PR_START_INDENT);%0A        Rectangle vpRect;%0A        if (this.wm == WritingMode.LR_TB %7C%7C this.wm == WritingMode.RL_TB) %7B%0A            vpRect = new Rectangle(start, mProps.spaceBefore,%0A                    reldims.ipd - start%0A                        - getRelMargin(PropertyList.END, PR_END_INDENT),%0A                    reldims.bpd - mProps.spaceBefore - mProps.spaceAfter);%0A        %7D else %7B%0A            vpRect = new Rectangle(start, mProps.spaceBefore,%0A                    reldims.bpd - mProps.spaceBefore - mProps.spaceAfter,%0A                    reldims.ipd - start%0A                        - getRelMargin(PropertyList.END, PR_END_INDENT));%0A        %7D%0A        return vpRect;%0A    %7D%0A%0A    /**%0A     * Get the relative margin using parent's writing mode, not own%0A     * writing mode.%0A     */%0A    private int getRelMargin(int reldir, int relPropId) %7B%0A        FObj parent = (FObj) getParent();%0A        String sPropName = %22margin-%22%0A                + parent.getPropertyList().getAbsoluteWritingMode(reldir);%0A        int propId = FOPropertyMapping.getPropertyId(sPropName);%0A        Property prop = propertyList.getExplicitOrShorthand(propId);%0A        if (prop == null) %7B%0A            prop = propertyList.getExplicitOrShorthand(relPropId);%0A        %7D%0A        return ((prop != null) ? prop.getLength().getValue() : 0
+return new Rectangle(mProps.startIndent, mProps.spaceBefore,%0A                    reldims.ipd - mProps.startIndent - mProps.endIndent,%0A                    reldims.bpd - mProps.spaceBefore - mProps.spaceAfter
 );%0A 

Simplify the calculation of the viewport. Now that indents are calculated correctly, we can just use them without doing any lookup of absolute margins.