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[mod] outline

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This commit is contained in:
Andy Bunce 2024-02-26 16:27:01 +00:00
parent d0e746a45a
commit 3ba5b52227
2 changed files with 44 additions and 17 deletions
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59
xquery/lib/pdfbox-lib.xqm
View file

@ -41,10 +41,11 @@ declare namespace PDOutlineItem="java:org.apache.pdfbox.pdmodel.interactive.docu
declare namespace File ="java:java.io.File";
declare namespace RandomAccessReadBufferedFile = "java:org.apache.pdfbox.io.RandomAccessReadBufferedFile";
(:~ open pdf, returns handle :)
declare function pdfbox:open($pdfpath as xs:string){
Loader:loadPDF( RandomAccessReadBufferedFile:new($pdfpath))
};
(:~ save pdf $doc to $savepath , returns $savepath :)
declare function pdfbox:save($doc,$savepath as xs:string)
as xs:string{
PDDocument:save($doc,File:new($savepath)),$savepath
@ -70,28 +71,53 @@ as xs:integer{
}
:)
declare function pdfbox:siblings($acc as item()*,$outlineItem ,$doc as item())
{
(# db:wrapjava all #) {
if(empty($outlineItem))
as map(*)*{
if(empty($outlineItem))
then $acc
else let $next:= PDOutlineItem:getNextSibling($outlineItem)=>trace("next: ")
return pdfbox:siblings($acc,pdfbox:bookmark($outlineItem ,$doc),
$next
)
}
};
(: return bookmark info for children of $outlineItem :)
declare function pdfbox:sibs($outlineItem,$doc )
as map(*)*
{
hof:until(
function($output) { empty($output?this) },
function($input ) { map{
"list":($input?list,pdfbox:bookmark($input?this,$doc)),
"this": PDOutlineItem:getNextSibling($input?this)}
},
map{"list":(),"this":$outlineItem}
)
};
declare function pdfbox:outline($doc as item())
as item()*{
let $bookmark:=(# db:wrapjava all #) {
as map(*)*{
(# db:wrapjava some #) {
let $bookmark:=
PDDocument:getDocumentCatalog($doc)
=>PDDocumentCatalog:getDocumentOutline()
=>PDOutlineItem:getFirstChild()=>trace("cur")
}
(: return hof:until(empty#1,pdfbox:outx(?,$doc),()) :)
let $bk:=pdfbox:siblings((),$bookmark ,$doc)
return $bk
(: let $bk:=pdfbox:siblings((),$bookmark ,$doc) :)
let $bk:=pdfbox:sibs($bookmark ,$doc)?list
(: let $bookmark := PDOutlineItem:getNextSibling($bookmark)
let $bk := ($bk, pdfbox:bookmark($bookmark, $doc))
let $bookmark := PDOutlineItem:getNextSibling($bookmark)
let $bk := ($bk, pdfbox:bookmark($bookmark, $doc))
let $bookmark := PDOutlineItem:getNextSibling($bookmark)
let $bk := ($bk, pdfbox:bookmark($bookmark, $doc))
let $bookmark := PDOutlineItem:getNextSibling($bookmark)
let $bk := ($bk, pdfbox:bookmark($bookmark, $doc))
let $bookmark := PDOutlineItem:getNextSibling($bookmark) => trace("EMP")
let $bk := ($bk, if(exists($bookmark)) then pdfbox:bookmark($bookmark, $doc)) :)
return $bk
}
};
declare function pdfbox:bookmark($bookmark as item(),$doc as item())
@ -100,7 +126,8 @@ as map(*){
(: return hof:until(empty#1,pdfbox:outx(?,$doc),()) :)
return map{
"index": pdfbox:pageIndex($currentPage,$doc),
"title": PDOutlineItem:getTitle($bookmark)
"title": PDOutlineItem:getTitle($bookmark),
"hasChildren": PDOutlineItem:hasChildren($bookmark)
}
};
@ -110,14 +137,14 @@ declare function pdfbox:outx($page,$document){
return $pageNumber
};
(: pageIndex of $page in $document :)
(:~ pageIndex of $page in $document :)
declare function pdfbox:pageIndex(
$page (: as java:org.apache.pdfbox.pdmodel.PDPage :),
$document)
{
PDDocument:getDocumentCatalog($document)
=>PDDocumentCatalog:getPages()
=>PDPageTree:indexOf($page)
PDDocument:getDocumentCatalog($document)
=>PDDocumentCatalog:getPages()
=>PDPageTree:indexOf($page)
};

2
xquery/scratch/pdfbox.xq
View file

@ -22,4 +22,4 @@ declare variable $PDF:= $samples?climate=>file:resolve-path($base);
let $doc:=pdfbox:open($PDF)
return pdfbox:outline($doc)
(: return pdfbox:extract($doc,"c:\tmp\junk2.pdf",50,100) :)
(: return pdfbox:extract($doc,"c:\tmp\junk3.pdf",1,pdfbox:page-count($doc)) :)