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Posted to fop-commits@xmlgraphics.apache.org by je...@apache.org on 2008/03/14 15:41:11 UTC
svn commit: r637119 - in /xmlgraphics/fop/branches/fop-0_95:
src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java status.xml
test/layoutengine/standard-testcases/block_break-before_bug44412.xml
Author: jeremias
Date: Fri Mar 14 07:41:03 2008
New Revision: 637119
URL: http://svn.apache.org/viewvc?rev=637119&view=rev
Log:
Bugzilla #44412:
Bugfix: The before border of a block is no longer swallowed if its first child issues a break-before.
Added:
xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml (with props)
Modified:
xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
xmlgraphics/fop/branches/fop-0_95/status.xml
Modified: xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java?rev=637119&r1=637118&r2=637119&view=diff
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java (original)
+++ xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java Fri Mar 14 07:41:03 2008
@@ -294,15 +294,24 @@
if (returnedList != null
&& returnedList.size() == 1
&& ((ListElement) returnedList.getFirst()).isForcedBreak()) {
- // a descendant of this block has break-before
- contentList.addAll(returnedList);
if (curLM.isFinished() && !hasNextChildLM()) {
+ // a descendant of this block has break-before
+ contentList.addAll(returnedList);
+
forcedBreakAfterLast = (BreakElement)contentList.removeLast();
context.clearPendingMarks();
break;
}
+ if (contentList.size() == 0) {
+ // Empty fo:block, zero-length box makes sure the IDs and/or markers
+ // are registered and borders/padding are painted.
+ returnList.add(new KnuthBox(0, notifyPos(new Position(this)), false));
+ }
+ // a descendant of this block has break-before
+ contentList.addAll(returnedList);
+
/* extension: conversione di tutta la sequenza fin'ora ottenuta */
if (bpUnit > 0) {
storedList = contentList;
Modified: xmlgraphics/fop/branches/fop-0_95/status.xml
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/status.xml?rev=637119&r1=637118&r2=637119&view=diff
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/status.xml (original)
+++ xmlgraphics/fop/branches/fop-0_95/status.xml Fri Mar 14 07:41:03 2008
@@ -117,6 +117,10 @@
</section>
</notes>
<action context="Layout" dev="JM" type="fix" fixes-bug="44412">
+ Bugfix: The before border of a block is no longer swallowed if its first child issues
+ a break-before.
+ </action>
+ <action context="Layout" dev="JM" type="fix" fixes-bug="44412">
Bugfix: When there was a forced break after a block with (conditional) borders the
border-after wasn't painted.
</action>
Added: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml
URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml?rev=637119&view=auto
==============================================================================
--- xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml (added)
+++ xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml Fri Mar 14 07:41:03 2008
@@ -0,0 +1,64 @@
+<?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 Bugzilla #44412 where a break-before on the first child of an otherwise
+ empty block is set. It is expected that the parent block creates two areas, the first with
+ only border-before on the first page and zero bpd.
+ </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="5in" page-width="5in" margin="20pt">
+ <fo:region-body/>
+ </fo:simple-page-master>
+ </fo:layout-master-set>
+ <fo:page-sequence master-reference="page">
+ <fo:flow flow-name="xsl-region-body">
+ <fo:block>Before the block</fo:block>
+ <fo:block id="b1" border="4pt solid black">
+ <fo:block break-before="page">The break-before set on this block causes the parent
+ block to produce an empty block area with only a border before on the
+ first page.</fo:block>
+ </fo:block>
+ </fo:flow>
+ </fo:page-sequence>
+ </fo:root>
+ </fo>
+ <checks>
+ <eval expected="2" xpath="count(//block[@prod-id = 'b1'])"/>
+ <eval expected="4000 4000 4000 0" xpath="(//block[@prod-id = 'b1'])[1]/@bap"/>
+ <eval expected="4000 4000 0 4000" xpath="(//block[@prod-id = 'b1'])[2]/@bap"/>
+ <eval expected="0" xpath="(//block[@prod-id = 'b1'])[1]/@bpd"/>
+ <eval expected="43200" xpath="(//block[@prod-id = 'b1'])[2]/@bpd"/>
+
+ <element-list category="breaker" index="0">
+ <box w="14400"/>
+ <penalty w="0" p="0"/>
+ <box w="0" aux="true"/>
+ <penalty w="0" p="INF"/>
+ <glue w="4000"/> <!-- border-before -->
+ <box w="0"/> <!-- first block area of the "b1" block with zero bpd -->
+
+ <skip>3</skip>
+ </element-list>
+ </checks>
+</testcase>
Propchange: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml
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Propchange: xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml
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svn:keywords = Id
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Re: svn commit: r637119 - in /xmlgraphics/fop/branches/fop-0_95:
src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java status.xml
test/layoutengine/standard-testcases/block_break-before_bug44412.xml
Posted by Vincent Hennebert <vi...@anyware-tech.com>.
Jeremias Maerki wrote:
> On 17.03.2008 20:29:07 Vincent Hennebert wrote:
>>> Author: jeremias
>>> Date: Fri Mar 14 07:41:03 2008
>>> New Revision: 637119
<snip/>
>>> if (returnedList != null
>>> && returnedList.size() == 1
>>> && ((ListElement) returnedList.getFirst()).isForcedBreak()) {
>>> - // a descendant of this block has break-before
>>> - contentList.addAll(returnedList);
>>>
>>> if (curLM.isFinished() && !hasNextChildLM()) {
>>> + // a descendant of this block has break-before
>>> + contentList.addAll(returnedList);
>>> +
>>> forcedBreakAfterLast = (BreakElement)contentList.removeLast();
>>> context.clearPendingMarks();
>>> break;
>>> }
>> What’s the point in adding a one-element list to another one if this
>> element is removed just after that? What have I missed?
>
> No particular point. It was refactoring to conserve existing
> functionality without looking at the bigger context. The if statement
> could probably be rewritten like this to "optimize" it.
>
> if (curLM.isFinished() && !hasNextChildLM()) {
> // a descendant of this block has break-before
> forcedBreakAfterLast = (BreakElement)contentList.removeLast();
> assert contentList.size() == 0;
> context.clearPendingMarks();
> break;
> }
Again, what was the additional cost of applying such a change? Isn’t the
code of this method already complex enough?
Vincent
--
Vincent Hennebert Anyware Technologies
http://people.apache.org/~vhennebert http://www.anyware-tech.com
Apache FOP Committer FOP Development/Consulting
Re: svn commit: r637119 - in /xmlgraphics/fop/branches/fop-0_95: src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java status.xml test/layoutengine/standard-testcases/block_break-before_bug44412.xml
Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.
On 17.03.2008 20:29:07 Vincent Hennebert wrote:
> > Author: jeremias
> > Date: Fri Mar 14 07:41:03 2008
> > New Revision: 637119
> >
> > URL: http://svn.apache.org/viewvc?rev=637119&view=rev
> > Log:
> > Bugzilla #44412:
> > Bugfix: The before border of a block is no longer swallowed if its first child issues a break-before.
> >
> > Added:
> > xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml (with props)
> > Modified:
> > xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
> > xmlgraphics/fop/branches/fop-0_95/status.xml
> >
> > Modified: xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
> > URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java?rev=637119&r1=637118&r2=637119&view=diff
> > ==============================================================================
> > --- xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java (original)
> > +++ xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java Fri Mar 14 07:41:03 2008
> > @@ -294,15 +294,24 @@
> > if (returnedList != null
> > && returnedList.size() == 1
> > && ((ListElement) returnedList.getFirst()).isForcedBreak()) {
> > - // a descendant of this block has break-before
> > - contentList.addAll(returnedList);
> >
> > if (curLM.isFinished() && !hasNextChildLM()) {
> > + // a descendant of this block has break-before
> > + contentList.addAll(returnedList);
> > +
> > forcedBreakAfterLast = (BreakElement)contentList.removeLast();
> > context.clearPendingMarks();
> > break;
> > }
>
> What’s the point in adding a one-element list to another one if this
> element is removed just after that? What have I missed?
No particular point. It was refactoring to conserve existing
functionality without looking at the bigger context. The if statement
could probably be rewritten like this to "optimize" it.
if (curLM.isFinished() && !hasNextChildLM()) {
// a descendant of this block has break-before
forcedBreakAfterLast = (BreakElement)contentList.removeLast();
assert contentList.size() == 0;
context.clearPendingMarks();
break;
}
Jeremias Maerki
Re: svn commit: r637119 - in /xmlgraphics/fop/branches/fop-0_95:
src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java status.xml
test/layoutengine/standard-testcases/block_break-before_bug44412.xml
Posted by Vincent Hennebert <vi...@anyware-tech.com>.
> Author: jeremias
> Date: Fri Mar 14 07:41:03 2008
> New Revision: 637119
>
> URL: http://svn.apache.org/viewvc?rev=637119&view=rev
> Log:
> Bugzilla #44412:
> Bugfix: The before border of a block is no longer swallowed if its first child issues a break-before.
>
> Added:
> xmlgraphics/fop/branches/fop-0_95/test/layoutengine/standard-testcases/block_break-before_bug44412.xml (with props)
> Modified:
> xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
> xmlgraphics/fop/branches/fop-0_95/status.xml
>
> Modified: xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java
> URL: http://svn.apache.org/viewvc/xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java?rev=637119&r1=637118&r2=637119&view=diff
> ==============================================================================
> --- xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java (original)
> +++ xmlgraphics/fop/branches/fop-0_95/src/java/org/apache/fop/layoutmgr/BlockStackingLayoutManager.java Fri Mar 14 07:41:03 2008
> @@ -294,15 +294,24 @@
> if (returnedList != null
> && returnedList.size() == 1
> && ((ListElement) returnedList.getFirst()).isForcedBreak()) {
> - // a descendant of this block has break-before
> - contentList.addAll(returnedList);
>
> if (curLM.isFinished() && !hasNextChildLM()) {
> + // a descendant of this block has break-before
> + contentList.addAll(returnedList);
> +
> forcedBreakAfterLast = (BreakElement)contentList.removeLast();
> context.clearPendingMarks();
> break;
> }
What’s the point in adding a one-element list to another one if this
element is removed just after that? What have I missed?
Vincent
--
Vincent Hennebert Anyware Technologies
http://people.apache.org/~vhennebert http://www.anyware-tech.com
Apache FOP Committer FOP Development/Consulting