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Posted to fop-commits@xmlgraphics.apache.org by vh...@apache.org on 2008/03/17 18:48:48 UTC

svn commit: r637993 - in /xmlgraphics/fop/branches/fop-0_95: src/java/org/apache/fop/layoutmgr/table/ActiveCell.java test/layoutengine/standard-testcases/table_bug44621.xml test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml

Author: vhennebert
Date: Mon Mar 17 10:48:44 2008
New Revision: 637993

URL: http://svn.apache.org/viewvc?rev=637993&view=rev
Log:
Bugzilla #44621: when the after border of a cell, in the trailing case, is bigger than in the normal case, the generated sequence of Knuth elements was wrong, leading to content being swallowed
This is a partial fix only: the content is no longer swallowed, but the penalty is wrong (shorter than it should be). This will lead to the table overflowing the region-body without warning.

Added:
    xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml   (with props)
Modified:
    xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/table/ActiveCell.java
    xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml

Modified: xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/table/ActiveCell.java
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/table/ActiveCell.java?rev=637993&r1=637992&r2=637993&view=diff
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/table/ActiveCell.java (original)
+++ xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/table/ActiveCell.java Mon Mar 17 10:48:44 2008
@@ -337,14 +337,22 @@
     }
 
     /**
-     * Returns the last step for this cell.
+     * Returns the last step for this cell. This includes the normal border- and
+     * padding-before, the whole content, the normal padding-after, and the
+     * <em>trailing</em> after border. Indeed, if the normal border is taken instead,
+     * and appears to be smaller than the trailing one, the last step may be smaller than
+     * the current step (see TableStepper#considerRowLastStep). This will produce a wrong
+     * infinite penalty, plus the cell's content won't be taken into account since the
+     * final step will be smaller than the current one (see {@link #signalNextStep(int)}).
+     * This actually means that the content will be swallowed.
      * 
-     * @return the step including all of the cell's content plus the normal borders and paddings
+     * @return the length of last step
      */
     int getLastStep() {
         assert nextStep.end == elementList.size() - 1;
         assert nextStep.contentLength == totalLength && nextStep.penaltyLength == 0;
-        int lastStep = bpBeforeNormal + totalLength + bpAfterNormal;
+        int lastStep = bpBeforeNormal + totalLength + paddingAfterNormal
+                + pgu.getAfterBorderWidth(ConditionalBorder.LEADING_TRAILING);
         log.debug(this + ": last step = " + lastStep);
         return lastStep;
     }
@@ -466,8 +474,12 @@
      */
     void endRow(int rowIndex) {
         if (endsOnRow(rowIndex)) {
+            // Subtract the old value of bpAfterTrailing...
+            nextStep.totalLength -= bpAfterTrailing;
             bpAfterTrailing = paddingAfterNormal
                     + pgu.getAfterBorderWidth(ConditionalBorder.LEADING_TRAILING);
+            // ... and add the new one
+            nextStep.totalLength += bpAfterTrailing;
             lastCellPart = true;
         } else {
             bpBeforeLeading = paddingBeforeLeading

Added: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml?rev=637993&view=auto
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml (added)
+++ xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml Mon Mar 17 10:48:44 2008
@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  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.
+-->
+<!-- $Id$ -->
+<testcase>
+  <info>
+    <p>
+      This is a testcase for bug #44621: when the width of the after border of a cell, in the
+      trailing case, is bigger than in the normal case, a wrong sequence of Knuth elements was
+      generated, leading to some content being swallowed.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="page" page-height="4in" page-width="5in" margin="0.5in">
+          <fo:region-body background-color="#F0F0F0"/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="page" font-size="12pt">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block space-after="10pt">The after borders of the body’s cells, in the trailing case,
+            are thicker than in the normal case.</fo:block>
+          <fo:table width="100%" table-layout="fixed"
+            font-size="8pt" line-height="10pt">
+            <fo:table-column column-width="proportional-column-width(1)"
+              number-columns-repeated="2"/>
+            <fo:table-footer>
+              <fo:table-cell border="4pt solid blue">
+                <fo:block>Footer 1.1</fo:block>
+              </fo:table-cell>
+              <fo:table-cell border="4pt solid blue">
+                <fo:block>Footer 1.2</fo:block>
+              </fo:table-cell>
+            </fo:table-footer>
+            <fo:table-body>
+              <fo:table-row>
+                <fo:table-cell border="2pt solid black">
+                  <fo:block>Cell 1.1</fo:block>
+                </fo:table-cell>
+                <fo:table-cell border="2pt solid black">
+                  <fo:block>Cell 1.2</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+              <fo:table-row>
+                <fo:table-cell border="2pt solid black">
+                  <fo:block>Cell 2.1</fo:block>
+                </fo:table-cell>
+                <fo:table-cell border="2pt solid black">
+                  <fo:block>Cell 2.2</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+            </fo:table-body>
+          </fo:table>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+
+    <eval expected="39000" xpath="//pageViewport//flow/block[2]/@bpd"/>
+    <eval expected="39000" xpath="//pageViewport//flow/block[2]/@bpda"/>
+    <!-- cell 1.1 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[1]/@bpd"/>
+    <eval expected="14000" xpath="//pageViewport//flow/block[2]/block[1]/@bpda"/>
+    <!-- cell 1.2 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[2]/@bpd"/>
+    <eval expected="14000" xpath="//pageViewport//flow/block[2]/block[2]/@bpda"/>
+    <!-- cell 2.1 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[3]/@bpd"/>
+    <eval expected="16000" xpath="//pageViewport//flow/block[2]/block[3]/@bpda"/>
+    <!-- cell 2.2 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[4]/@bpd"/>
+    <eval expected="16000" xpath="//pageViewport//flow/block[2]/block[4]/@bpda"/>
+    <!-- footer 1.1 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[5]/@bpd"/>
+    <eval expected="18000" xpath="//pageViewport//flow/block[2]/block[5]/@bpda"/>
+    <!-- footer 1.2 -->
+    <eval expected="10000" xpath="//pageViewport//flow/block[2]/block[6]/@bpd"/>
+    <eval expected="18000" xpath="//pageViewport//flow/block[2]/block[6]/@bpda"/>
+
+    <element-list category="breaker">
+      <skip>4</skip>
+      <box w="12000"/>
+      <penalty w="14000" p="0"/><!-- should be 15000 -->
+      <box w="13000"/>
+      <box w="14000"/>
+      <skip>3</skip>
+    </element-list>
+  </checks>
+</testcase>

Propchange: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml
------------------------------------------------------------------------------
    svn:eol-style = native

Propchange: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_bug44621.xml
------------------------------------------------------------------------------
    svn:keywords = Revision Id

Modified: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml?rev=637993&r1=637992&r2=637993&view=diff
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml (original)
+++ xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/table_row-delay_fixed-row-height.xml Mon Mar 17 10:48:44 2008
@@ -145,7 +145,7 @@
     <element-list category="breaker">
       <skip>3</skip>
       <box w="17000"/>
-      <penalty w="18000" p="0"/>
+      <penalty w="15000" p="0"/>
       <box w="16800"/>
       <penalty w="1800" p="0"/>
       <box w="31200"/>



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