PDF::Builder::Outline(3)

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

$outline = PDF::Builder::Outline->new($api, $parent, $prev)
    Returns a new outline object (called from $outlines->outline()).

  Examine the Outline Tree

$boolean = $outline->has_children()
    Return true if the current outline item has children (child items).

$integer = $outline->count()
    Return the number of descendants that are visible when the current outline item is open (expanded).

$child = $outline->first()
    Return the first child of the current outline level, if one exists.

$child = $outline->last()
    Return the last child of the current outline level, if one exists.

$parent = $outline->parent()
    Return the parent of the current item, if not at the top level of the outline tree.

$sibling = $outline->prev()
    Return the previous item of the current level of the outline tree.

$sibling = $outline->next()
    Return the next item of the current level of the outline tree.

  Modify the Outline Tree

$child_outline = $parent_outline->outline()
    Returns a new sub-outline (nested outline) added at the end of the current outline's children.

$sibling = $outline->insert_after()
    Add an outline item immediately following the current item.

$sibling = $outline->insert_before()
    Add an outline item immediately preceding the current item.

$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.

$boolean = $outline->is_open() # Get
$outline = $outline->is_open($boolean) # Set
    Get/set whether the outline is expanded (open) or collapsed (closed).

$outline->open()
    Set the status of the outline to open (i.e., expanded).

    This is an alternate method to using is_open(true).

$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 = $outline->title() # Get
$outline = $outline->title($text) # Set
    Get/set the title of the outline item.

$outline->dest($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

$outline->uri($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.

$outline->launch($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.

$outline->pdf($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.