Bugzilla #37815:

Bugfix: The combination of content-width="scale-to-fit" and content-height="100%" did not work as expected due to a datatype conversion bug.
Submitted by: Tom <tom.at.craddock.id.au>

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@354757 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/layoutmgr/inline/AbstractGraphicsLayoutManager.java

@@ -147,8 +147,8 @@ public abstract class AbstractGraphicsLayoutManager extends LeafNodeLayoutManage
                     cwidth = 0;
                     cheight = 0;
                 } else {
-                    double rat1 = cwidth / fobj.getIntrinsicWidth();
-                    double rat2 = cheight / fobj.getIntrinsicHeight();
+                    double rat1 = (double) cwidth / fobj.getIntrinsicWidth();
+                    double rat2 = (double) cheight / fobj.getIntrinsicHeight();
                     if (rat1 < rat2) {
                         // reduce cheight
                         cheight = (int)(rat1 * fobj.getIntrinsicHeight());

status.xml

@@ -27,6 +27,10 @@
 
   <changes>
     <release version="FOP Trunk">
+      <action context="Code" dev="JM" type="fix" fixes-bug="37815" due-to="Tom Craddock">
+        Bugfix: The combination of content-width="scale-to-fit" and content-height="100%"
+        did not work as expected due to a datatype conversion bug.
+      </action>
       <action context="Code" dev="JM" type="fix" fixes-bug="37813">
         Bugfix: A span="all" on the first block cause a subsequent page break and the first block
         didn't span all columns.

test/layoutengine/standard-testcases/external-graphic_bug37815.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright 2005 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.
+-->
+<!-- $Id$ -->
+<testcase>
+  <info>
+    <p>
+      This test checks external-graphics concerning Bugzilla #37815.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:svg="http://www.w3.org/2000/svg">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="normal" page-width="5in" page-height="5in" margin="20pt">
+          <fo:region-body/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="normal" white-space-collapse="true">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block>
+            <fo:external-graphic src="../../resources/images/bgimg72dpi.jpg" width="50%" content-width="scale-to-fit" content-height="100%" border="solid 1pt" background-color="yellow"/>EOG
+          </fo:block>
+          <fo:block>
+            <fo:external-graphic src="../../resources/images/bgimg300dpi.jpg" width="50%" content-width="scale-to-fit" content-height="100%" border="solid 1pt" background-color="yellow"/>EOG
+          </fo:block>
+          <fo:block>EOF</fo:block>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <eval expected="320000" xpath="//flow/block[1]/@ipd"/>
+    <eval expected="160000" xpath="//flow/block[1]/lineArea/viewport/@ipd"/>
+    <eval expected="162000" xpath="//flow/block[1]/lineArea/viewport/@ipda"/>
+    <eval expected="160000" xpath="//flow/block[1]/lineArea/viewport/@bpd"/>
+    <eval expected="162000" xpath="//flow/block[1]/lineArea/viewport/@bpda"/>
+    <eval expected="160000" xpath="//flow/block[2]/lineArea/viewport/@ipd"/>
+    <eval expected="162000" xpath="//flow/block[2]/lineArea/viewport/@ipda"/>
+    <eval expected="46080" xpath="//flow/block[2]/lineArea/viewport/@bpd"/>
+    <eval expected="48080" xpath="//flow/block[2]/lineArea/viewport/@bpda"/>
+  </checks>
+</testcase>