NAME
PDF::Builder::Outline - Manage PDF outlines (a.k.a. bookmarks)
SYNOPSIS
# Get/create the top-level outline tree
my $outlines = $pdf->outline();
# Add an entry
my $item = $outlines->outline();
$item->title('First Page');
$item->dest($pdf->open_page(1), fit-def);
METHODS
new
$outline = PDF::Builder::Outline->new($api, $parent, $prev)
Returns a new outline object (called from $outlines->outline()).
Examine the Outline Tree
has_children
$boolean = $outline->has_children()
Return true if the current outline item has children (child items).
count
$integer = $outline->count()
Return the number of descendants that are visible when the current outline item is open (expanded).
first
$child = $outline->first()
Return the first child of the current outline level, if one exists.
last
$child = $outline->last()
Return the last child of the current outline level, if one exists.
parent
$parent = $outline->parent()
Return the parent of the current item, if not at the top level of the outline tree.
prev
$sibling = $outline->prev()
Return the previous item of the current level of the outline tree.
next
$sibling = $outline->next()
Return the next item of the current level of the outline tree.
Modify the Outline Tree
outline
$child_outline = $parent_outline->outline()
Returns a new sub-outline (nested outline) added at the end of the current outline's children.
insert_after
$sibling = $outline->insert_after()
Add an outline item immediately following the current item.
insert_before
$sibling = $outline->insert_before()
Add an outline item immediately preceding the current item.
delete
$outline->delete()
Remove the current outline item from the outline tree. If the item has any children, they will effectively be deleted as well, since they will no longer be linked.
is_open
$boolean = $outline->is_open() # Get
$outline = $outline->is_open($boolean) # Set
Get/set whether the outline is expanded (open) or collapsed (closed).
open
$outline->open()
Set the status of the outline to open (i.e., expanded).
This is an alternate method to using is_open(true).
closed
$outline->closed()
Set the status of the outline to closed (i.e., collapsed).
This is an alternate method to using is_open(false).
Set Outline Attributes
title
$title = $outline->title() # Get
$outline = $outline->title($text) # Set
Get/set the title of the outline item.
dest
$outline->dest($page_object, %position)
$outline->dest($page_object)
Sets the destination page and optional position of the outline.
%position can be any of those listed in "Page Fit Options" in PDF::Builder::Docs.
"xyz" is the default fit setting, with position (left and top) and zoom the same as the calling page's.
$outline->dest($name, %position)
$outline->dest($name)
Connect the Outline to a "Named Destination" defined elsewhere, and optional positioning as described above.
Destination targets
uri, url
$outline->uri($url)
Defines the outline as launch-url with url $url
, typically a web page.
Alternate name: url
Either uri
or url
may be used; uri
is for compatibility with PDF::API2.
launch, file
$outline->launch($file)
Defines the outline as launch-file with filepath $file
. This is typically a local application or file.
Alternate name: file
Either launch
or file
may be used; launch
is for compatibility with PDF::API2.
pdf, pdf_file, pdfile
$outline->pdf($pdffile, $page_number, %position, %args)
$outline->pdf($pdffile, $page_number)
Defines the destination of the outline as a PDF-file with filepath $pdffile
, on page $pagenum
(default 0), and position %position
(same as dest()).
Alternate names: pdf_file
and pdfile
Either pdf
or pdf_file
(or the older pdfile
) may be used; pdf
is for compatibility with PDF::API2.