Package com.lowagie.rups.model
Class TreeNodeFactory
java.lang.Object
com.lowagie.rups.model.TreeNodeFactory
A factory that creates TreeNode objects corresponding with PDF objects.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected ArrayList
<PdfObjectTreeNode> An list containing the nodes of every indirect object.protected IndirectObjectFactory
The factory that can produce all indirect objects. -
Constructor Summary
ConstructorsConstructorDescriptionTreeNodeFactory
(IndirectObjectFactory objects) Creates a factory that can produce TreeNode objects corresponding with PDF objects. -
Method Summary
Modifier and TypeMethodDescriptionprivate void
addNodes
(PdfObjectTreeNode parent, PdfObjectTreeNode child) Tries adding a child node to a parent node without throwing an exception.void
expandNode
(PdfObjectTreeNode node) Creates the Child TreeNode objects for a PDF object TreeNode.getChildNode
(PdfObjectTreeNode node, PdfName key) Finds a specific child of dictionary node.getNode
(int ref) Gets a TreeNode for an indirect objects.
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Field Details
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objects
The factory that can produce all indirect objects. -
nodes
An list containing the nodes of every indirect object.
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Constructor Details
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TreeNodeFactory
Creates a factory that can produce TreeNode objects corresponding with PDF objects.- Parameters:
objects
- a factory that can produce all the indirect objects of a PDF file.
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Method Details
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getNode
Gets a TreeNode for an indirect objects.- Parameters:
ref
- the reference number of the indirect object.- Returns:
- the TreeNode representing the PDF object
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expandNode
Creates the Child TreeNode objects for a PDF object TreeNode.- Parameters:
node
- the parent node
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getChildNode
Finds a specific child of dictionary node.- Parameters:
node
- the node with a dictionary among its childrenkey
- the key of the item corresponding with the node we need- Returns:
- the PdfObjectTreeNode that is the child of the dictionary node
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addNodes
Tries adding a child node to a parent node without throwing an exception. Normally, if the child node is already added as one of the ancestors, an IllegalArgumentException is thrown (to avoid an endless loop). Loops like this are allowed in PDF, not in a JTree.- Parameters:
parent
- the parent nodechild
- a child node
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