From 40b3642340e89fe4b7baf5f4d130f8b34b0eaaf7 Mon Sep 17 00:00:00 2001
From: Jeremias Maerki <jeremias@apache.org>
Date: Fri, 23 Mar 2007 09:19:04 +0000
Subject: [PATCH] Avoid an IndexOutOfBoundsException when more columns are used
 than are specified even though this is illegal with fixed table layout.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@521640 13f79535-47bb-0310-9956-ffa450edef68
---
 .../fop/layoutmgr/table/ColumnSetup.java      | 10 ++-
 .../table-column_missing.xml                  | 75 +++++++++++++++++++
 2 files changed, 83 insertions(+), 2 deletions(-)
 create mode 100644 test/layoutengine/standard-testcases/table-column_missing.xml

diff --git a/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java b/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
index b7f29a744..eb91f7175 100644
--- a/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
+++ b/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
@@ -221,8 +221,14 @@ public class ColumnSetup {
     public int getXOffset(int col, PercentBaseContext context) {
         int xoffset = 0;
         for (int i = col; --i >= 0;) {
-            if (colWidths.get(i) != null) {
-                xoffset += ((Length) colWidths.get(i)).getValue(context);
+            int effCol;
+            if (i < colWidths.size()) {
+                effCol = i;
+            } else {
+                effCol = colWidths.size() - 1;
+            }
+            if (colWidths.get(effCol) != null) {
+                xoffset += ((Length) colWidths.get(effCol)).getValue(context);
             }
         }
         return xoffset;
diff --git a/test/layoutengine/standard-testcases/table-column_missing.xml b/test/layoutengine/standard-testcases/table-column_missing.xml
new file mode 100644
index 000000000..01521bf7b
--- /dev/null
+++ b/test/layoutengine/standard-testcases/table-column_missing.xml
@@ -0,0 +1,75 @@
+<?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 test checks if FOP can handle the case where more columns are actually used than
+      specified.
+    </p>
+    <p>
+      Note: This test case is technically wrong since in fixed table layout all
+      column-widths must be specified. But we don't want to have FOP crash
+      with an IndexOutOfBoundsException either.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="normal" page-width="5in" page-height="5in">
+          <fo:region-body/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="normal">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:table table-layout="fixed" width="100%" border-collapse="separate">
+            <fo:table-column width="2cm"/>
+            <fo:table-body>
+              <fo:table-row>
+                <fo:table-cell>
+                  <fo:block>cell 1/1</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+              <fo:table-row>
+                <fo:table-cell>
+                  <fo:block>cell 2/1</fo:block>
+                </fo:table-cell>
+                <fo:table-cell>
+                  <fo:block>cell 2/2</fo:block>
+                </fo:table-cell>
+                <fo:table-cell>
+                  <fo:block>cell 2/3</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+            </fo:table-body>
+          </fo:table>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <eval expected="14400" xpath="//flow/block/block[2]/@top-offset"/>
+    <eval expected="14400" xpath="//flow/block/block[3]/@top-offset"/>
+    <eval expected="14400" xpath="//flow/block/block[4]/@top-offset"/>
+
+    <eval expected="360000" xpath="//flow/block/block[3]/@left-offset"/>
+    <eval expected="720000" xpath="//flow/block/block[4]/@left-offset"/>
+    <eval expected="360000" xpath="//flow/block/block[3]/@ipd"/>
+    <eval expected="360000" xpath="//flow/block/block[4]/@ipd"/>
+  </checks>
+</testcase>
-- 
2.39.5