From 46917ef59fd0ffbbcccb16d57118a92da3dc1e0d Mon Sep 17 00:00:00 2001
From: Glenn Adams <gadams@apache.org>
Date: Fri, 20 Apr 2012 21:26:43 +0000
Subject: [PATCH] Bugzilla #53101: Ensure that table cell spanning works in
 right-to-left writing mode.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1328515 13f79535-47bb-0310-9956-ffa450edef68
---
 .../fop/layoutmgr/table/ColumnSetup.java      |  9 +-
 .../fop/layoutmgr/table/RowPainter.java       |  2 +-
 .../table/TableContentLayoutManager.java      |  7 +-
 status.xml                                    |  3 +
 .../table-column_column-progression-rl_3.xml  | 89 +++++++++++++++++++
 5 files changed, 102 insertions(+), 8 deletions(-)
 create mode 100644 test/layoutengine/standard-testcases/table-column_column-progression-rl_3.xml

diff --git a/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java b/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
index aaccbd0d3..b0ad22386 100644
--- a/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
+++ b/src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java
@@ -245,13 +245,14 @@ public class ColumnSetup {
      * the left-most column; otherwise, the first column is the left-most
      * column.
      * @param col column index (1 is first column)
+     * @param nrColSpan number columns spanned (for calculating offset in rtl mode)
      * @param context the context for percentage based calculations
      * @return the X offset of the requested column
      */
-    public int getXOffset(int col, PercentBaseContext context) {
+    public int getXOffset(int col, int nrColSpan, PercentBaseContext context) {
         // TODO handle vertical WMs [GA]
         if ( (wmTraits != null) && (wmTraits.getColumnProgressionDirection() == Direction.RL) ) {
-            return getXOffsetRTL(col, context);
+            return getXOffsetRTL(col, nrColSpan, context);
         } else {
             return getXOffsetLTR(col, context);
         }
@@ -262,9 +263,9 @@ public class ColumnSetup {
      * column; i.e., those columns whose column numbers are greater than the
      * specified column number.
      */
-    private int getXOffsetRTL(int col, PercentBaseContext context) {
+    private int getXOffsetRTL(int col, int nrColSpan, PercentBaseContext context) {
         int xoffset = 0;
-        for (int i = col, nc = colWidths.size(); ++i < nc;) {
+        for (int i = (col + nrColSpan - 1), nc = colWidths.size(); ++i < nc;) {
             int effCol = i;
             if (colWidths.get(effCol) != null) {
                 xoffset += ((Length) colWidths.get(effCol)).getValue(context);
diff --git a/src/java/org/apache/fop/layoutmgr/table/RowPainter.java b/src/java/org/apache/fop/layoutmgr/table/RowPainter.java
index f6c831b3f..955dafabd 100644
--- a/src/java/org/apache/fop/layoutmgr/table/RowPainter.java
+++ b/src/java/org/apache/fop/layoutmgr/table/RowPainter.java
@@ -468,7 +468,7 @@ class RowPainter {
         block.addTrait(Trait.IS_REFERENCE_AREA, Boolean.TRUE);
         block.setIPD(ipd);
         block.setBPD(bpd);
-        block.setXOffset(tclm.getXOffsetOfGridUnit(colIndex)
+        block.setXOffset(tclm.getXOffsetOfGridUnit(colIndex, 1)
                 + (borderStart.getRetainedWidth() / 2));
         block.setYOffset(getRowOffset(rowIndex)
                 - (borderBefore.getRetainedWidth() / 2));
diff --git a/src/java/org/apache/fop/layoutmgr/table/TableContentLayoutManager.java b/src/java/org/apache/fop/layoutmgr/table/TableContentLayoutManager.java
index db5b4736c..f5e7500e2 100644
--- a/src/java/org/apache/fop/layoutmgr/table/TableContentLayoutManager.java
+++ b/src/java/org/apache/fop/layoutmgr/table/TableContentLayoutManager.java
@@ -317,16 +317,17 @@ public class TableContentLayoutManager implements PercentBaseContext {
      * @return the requested X offset
      */
     protected int getXOffsetOfGridUnit(PrimaryGridUnit gu) {
-        return getXOffsetOfGridUnit(gu.getColIndex());
+        return getXOffsetOfGridUnit(gu.getColIndex(), gu.getCell().getNumberColumnsSpanned());
     }
 
     /**
      * Returns the X offset of the grid unit in the given column.
      * @param colIndex the column index (zero-based)
+     * @param nrColSpan number columns spanned
      * @return the requested X offset
      */
-    protected int getXOffsetOfGridUnit(int colIndex) {
-        return startXOffset + getTableLM().getColumns().getXOffset(colIndex + 1, getTableLM());
+    protected int getXOffsetOfGridUnit(int colIndex, int nrColSpan) {
+        return startXOffset + getTableLM().getColumns().getXOffset(colIndex + 1, nrColSpan, getTableLM());
     }
 
     /**
diff --git a/status.xml b/status.xml
index 67e2fb973..13c5bc36f 100644
--- a/status.xml
+++ b/status.xml
@@ -62,6 +62,9 @@
       documents. Example: the fix of marks layering will be such a case when it's done.
     -->
     <release version="FOP Trunk" date="TBD">
+      <action context="Code" dev="GA" type="fix" fixes-bug="53103" due-to="Matthias Reischenbacher">
+        Ensure that table cell spanning works in right-to-left writing mode.
+      </action>
       <action context="Code" dev="GA" type="fix" fixes-bug="53086">
         Ensure that table footer and header are included in bididirectional resolution.
       </action>
diff --git a/test/layoutengine/standard-testcases/table-column_column-progression-rl_3.xml b/test/layoutengine/standard-testcases/table-column_column-progression-rl_3.xml
new file mode 100644
index 000000000..0b39606f7
--- /dev/null
+++ b/test/layoutengine/standard-testcases/table-column_column-progression-rl_3.xml
@@ -0,0 +1,89 @@
+<?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 table column progression with right-to-left writing mode when using multiple
+      column spans. See also bugzilla #53103.
+    </p>
+  </info>
+  <fo>
+    <fo:root   xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="first" page-height="29.7cm" page-width="21cm" margin-top="1cm" margin-bottom="2cm" margin-left="1cm" margin-right="1cm">
+          <fo:region-body margin-top="3cm"/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="first">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:table table-layout="fixed" width="125mm" writing-mode="rl-tb">
+	    <fo:table-header>
+	      <fo:table-row>
+	        <fo:table-cell number-columns-spanned="2" border="solid 1px black">
+	          <fo:block>header-R1;C1-span2</fo:block>
+	        </fo:table-cell>
+	        <fo:table-cell border="solid 1px black">
+	          <fo:block>header-R1;C2</fo:block>
+	        </fo:table-cell>
+	        <fo:table-cell border="solid 1px black">
+	          <fo:block>header-R1;C3</fo:block>
+	        </fo:table-cell>
+	      </fo:table-row>
+	    </fo:table-header>
+	    <fo:table-body>
+	      <fo:table-row>
+	        <fo:table-cell border="solid 1px black">
+	          <fo:block>body-R2;C1</fo:block>
+	        </fo:table-cell>
+	        <fo:table-cell number-columns-spanned="2" border="solid 1px black">
+	          <fo:block>body-R2;C2</fo:block>
+	        </fo:table-cell>
+	        <fo:table-cell border="solid 1px black">
+	          <fo:block>body-R2;C3</fo:block>
+	        </fo:table-cell>
+	      </fo:table-row>
+	      <fo:table-row>
+	        <fo:table-cell number-columns-spanned="3" border="solid 1px black">
+	          <fo:block>body-R3;C1-span3</fo:block>
+	        </fo:table-cell>
+	        <fo:table-cell border="solid 1px black">
+	          <fo:block>body-R3;C2</fo:block>
+	        </fo:table-cell>
+	      </fo:table-row>
+	    </fo:table-body>
+          </fo:table>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <!-- row 1 (header), column 1, span 2 -->
+    <eval expected="header-R1;C1-span2" xpath="//flow/block[1]/block[3]//lineArea"/>
+    <eval expected="177664" xpath="//flow/block[1]/block[3]/@left-offset"/>
+    <eval expected="176164" xpath="//flow/block[1]/block[3]/@ipd"/>
+    <!-- row 2 (body), column 2, span 1 -->
+    <eval expected="body-R2;C2" xpath="//flow/block[1]/block[9]//lineArea"/>
+    <eval expected="89082" xpath="//flow/block[1]/block[9]/@left-offset"/>
+    <eval expected="176164" xpath="//flow/block[1]/block[9]/@ipd"/>
+    <!-- row 3 (body), column 1, span 3 -->
+    <eval expected="body-R3;C1-span3" xpath="//flow/block[1]/block[14]//lineArea"/>
+    <eval expected="89082" xpath="//flow/block[1]/block[14]/@left-offset"/>
+    <eval expected="264746" xpath="//flow/block[1]/block[14]/@ipd"/>
+  </checks>
+</testcase>
-- 
2.39.5