Associate structure tree elements directly to render content
* Defer the binding of PCData to struct elems using a placeholder mechanism.
* Translate text nodes to marked-content sequences in IF structure tree.
* Replace ptr with structure tree element.
* Re-order table footers so they appear at the end of the structure tree.
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ImproveAccessibility@1236718 13f79535-47bb-0310-9956-ffa450edef68
Removed the DOM representation of the structure tree.
The structure tree is now directly converted into corresponding PDF objects.
When going the IF route, the structure tree is stored in the form of SAX events that will be re-played when it's time to stream them into the output. This may still change.
* Extracted RFC3066 methods from XMLUtil into new LanguageTags class that can be re-used in a non-XML context.
* Dropped support for accessibility in the old Area Tree XML.
* Added support for the xml:lang property on fo:root, so that the global language can be set for the document without retrieving the language from the first page-sequence.
* Renamed StructureTreeBuilder into more appropriate StructureTreeEventHandler (same for applicable sub-classes)
* Renamed StructureTreeBuildingFOEventHandler into FO2StructureTreeConverter and added test case
* Added test cases for classes in the StructureTreeEventHandler hierarchy
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ImproveAccessibility@1205935 13f79535-47bb-0310-9956-ffa450edef68
Removed the FO document pre-processing step that was adding ptr and creating a reduced FO tree.
* Removed addPtr.xsl and reduceFOTree.xsl
* Implemented Common Accessibility properties on objects that support them
* Added a special implementation of FOEventHandler to build the structure tree
* Added mockito library and its dependencies
* Added mocks for some FO nodes and properties
* Removed FOTreeUnitTester and converted it into a re-usable FODocumentParser class
* Re-worked table FO test cases accordingly
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ImproveAccessibility@1188205 13f79535-47bb-0310-9956-ffa450edef68
Updated reference accessible PDF files. Old ones had "Apache FOP Version SVN branches/Temp_Accessibility" as Creator and Producer values. New ones have "Apache FOP Version SVN trunk". This was causing spurious differences when testing PDF accessibility.
Vincent Hennebert
Peter Hancock