diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdfviewer/PDFTreeModel.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdfviewer/PDFTreeModel.java | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/src/main/java/org/pdfbox/pdfviewer/PDFTreeModel.java b/src/main/java/org/pdfbox/pdfviewer/PDFTreeModel.java deleted file mode 100644 index 368a2ca..0000000 --- a/src/main/java/org/pdfbox/pdfviewer/PDFTreeModel.java +++ /dev/null @@ -1,332 +0,0 @@ -/**
- * Copyright (c) 2003-2005, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.pdfviewer;
-
-/**
- * A tree model that uses a cos document.
- *
- *
- * @author wurtz
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.8 $
- */
-import javax.swing.tree.TreePath;
-import javax.swing.tree.TreeModel;
-
-//import java.awt.event.*;
-import javax.swing.event.TreeModelListener;
-
-import org.pdfbox.cos.COSArray;
-import org.pdfbox.cos.COSBase;
-import org.pdfbox.cos.COSDictionary;
-import org.pdfbox.cos.COSDocument;
-import org.pdfbox.cos.COSName;
-import org.pdfbox.cos.COSObject;
-
-import org.pdfbox.pdmodel.PDDocument;
-
-import java.util.Collections;
-import java.util.List;
-
-/**
- * A class to model a PDF document as a tree structure.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.8 $
- */
-public class PDFTreeModel implements TreeModel
-{
- private PDDocument document;
-
- /**
- * constructor.
- */
- public PDFTreeModel()
- {
- //default constructor
- }
-
- /**
- * Constructor to take a document.
- *
- * @param doc The document to display in the tree.
- */
- public PDFTreeModel(PDDocument doc)
- {
- setDocument(doc);
- }
-
- /**
- * Set the document to display in the tree.
- *
- * @param doc The document to display in the tree.
- */
- public void setDocument(PDDocument doc)
- {
- document = doc;
- }
- /**
- * Adds a listener for the <code>TreeModelEvent</code>
- * posted after the tree changes.
- *
- * @param l the listener to add
- * @see #removeTreeModelListener
- *
- */
- public void addTreeModelListener(TreeModelListener l)
- {
- //required for interface
- }
-
- /**
- * Returns the child of <code>parent</code> at index <code>index</code>
- * in the parent's
- * child array. <code>parent</code> must be a node previously obtained
- * from this data source. This should not return <code>null</code>
- * if <code>index</code>
- * is a valid index for <code>parent</code> (that is <code>index >= 0 &&
- * index < getChildCount(parent</code>)).
- *
- * @param parent a node in the tree, obtained from this data source
- * @param index The index into the parent object to location the child object.
- * @return the child of <code>parent</code> at index <code>index</code>
- *
- */
- public Object getChild(Object parent, int index)
- {
- Object retval = null;
- if( parent instanceof COSArray )
- {
- ArrayEntry entry = new ArrayEntry();
- entry.setIndex( index );
- entry.setValue( ((COSArray)parent).getObject( index ) );
- retval = entry;
- }
- else if( parent instanceof COSDictionary )
- {
- COSDictionary dict = ((COSDictionary)parent);
- List keys = dict.keyList();
- Collections.sort( keys );
- Object key = keys.get( index );
- Object value = dict.getDictionaryObject( (COSName)key );
- MapEntry entry = new MapEntry();
- entry.setKey( key );
- entry.setValue( value );
- retval = entry;
- }
- else if( parent instanceof MapEntry )
- {
- retval = getChild( ((MapEntry)parent).getValue(), index );
- }
- else if( parent instanceof ArrayEntry )
- {
- retval = getChild( ((ArrayEntry)parent).getValue(), index );
- }
- else if( parent instanceof COSDocument )
- {
- retval = ((COSDocument)parent).getObjects().get( index );
- }
- else if( parent instanceof COSObject )
- {
- retval = ((COSObject)parent).getObject();
- }
- else
- {
- throw new RuntimeException( "Unknown COS type " + parent.getClass().getName() );
- }
- return retval;
- }
-
- /** Returns the number of children of <code>parent</code>.
- * Returns 0 if the node
- * is a leaf or if it has no children. <code>parent</code> must be a node
- * previously obtained from this data source.
- *
- * @param parent a node in the tree, obtained from this data source
- * @return the number of children of the node <code>parent</code>
- *
- */
- public int getChildCount(Object parent)
- {
- int retval = 0;
- if( parent instanceof COSArray )
- {
- retval = ((COSArray)parent).size();
- }
- else if( parent instanceof COSDictionary )
- {
- retval = ((COSDictionary)parent).size();
- }
- else if( parent instanceof MapEntry )
- {
- retval = getChildCount( ((MapEntry)parent).getValue() );
- }
- else if( parent instanceof ArrayEntry )
- {
- retval = getChildCount( ((ArrayEntry)parent).getValue() );
- }
- else if( parent instanceof COSDocument )
- {
- retval = ((COSDocument)parent).getObjects().size();
- }
- else if( parent instanceof COSObject )
- {
- retval = 1;
- }
- return retval;
- }
-
- /** Returns the index of child in parent. If <code>parent</code>
- * is <code>null</code> or <code>child</code> is <code>null</code>,
- * returns -1.
- *
- * @param parent a note in the tree, obtained from this data source
- * @param child the node we are interested in
- * @return the index of the child in the parent, or -1 if either
- * <code>child</code> or <code>parent</code> are <code>null</code>
- *
- */
- public int getIndexOfChild(Object parent, Object child)
- {
- int retval = -1;
- if( parent != null && child != null )
- {
- if( parent instanceof COSArray )
- {
- COSArray array = (COSArray)parent;
- if( child instanceof ArrayEntry )
- {
- ArrayEntry arrayEntry = (ArrayEntry)child;
- retval = arrayEntry.getIndex();
- }
- else
- {
- retval = array.indexOf( (COSBase)child );
- }
- }
- else if( parent instanceof COSDictionary )
- {
- MapEntry entry = (MapEntry)child;
- COSDictionary dict = (COSDictionary)parent;
- List keys = dict.keyList();
- Collections.sort( keys );
- for( int i=0; retval == -1 && i<keys.size(); i++ )
- {
- if( keys.get( i ).equals( entry.getKey() ) )
- {
- retval = i;
- }
- }
- }
- else if( parent instanceof MapEntry )
- {
- retval = getIndexOfChild( ((MapEntry)parent).getValue(), child );
- }
- else if( parent instanceof ArrayEntry )
- {
- retval = getIndexOfChild( ((ArrayEntry)parent).getValue(), child );
- }
- else if( parent instanceof COSDocument )
- {
- retval = ((COSDocument)parent).getObjects().indexOf( child );
- }
- else if( parent instanceof COSObject )
- {
- retval = 0;
- }
- else
- {
- throw new RuntimeException( "Unknown COS type " + parent.getClass().getName() );
- }
- }
- return retval;
- }
-
- /** Returns the root of the tree. Returns <code>null</code>
- * only if the tree has no nodes.
- *
- * @return the root of the tree
- *
- */
- public Object getRoot()
- {
- return document.getDocument().getTrailer();
- }
-
- /** Returns <code>true</code> if <code>node</code> is a leaf.
- * It is possible for this method to return <code>false</code>
- * even if <code>node</code> has no children.
- * A directory in a filesystem, for example,
- * may contain no files; the node representing
- * the directory is not a leaf, but it also has no children.
- *
- * @param node a node in the tree, obtained from this data source
- * @return true if <code>node</code> is a leaf
- *
- */
- public boolean isLeaf(Object node)
- {
- boolean isLeaf = !(node instanceof COSDictionary ||
- node instanceof COSArray ||
- node instanceof COSDocument ||
- node instanceof COSObject ||
- (node instanceof MapEntry && !isLeaf(((MapEntry)node).getValue()) ) ||
- (node instanceof ArrayEntry && !isLeaf(((ArrayEntry)node).getValue()) ));
- return isLeaf;
- }
-
- /** Removes a listener previously added with
- * <code>addTreeModelListener</code>.
- *
- * @see #addTreeModelListener
- * @param l the listener to remove
- *
- */
-
- public void removeTreeModelListener(TreeModelListener l)
- {
- //required for interface
- }
-
- /** Messaged when the user has altered the value for the item identified
- * by <code>path</code> to <code>newValue</code>.
- * If <code>newValue</code> signifies a truly new value
- * the model should post a <code>treeNodesChanged</code> event.
- *
- * @param path path to the node that the user has altered
- * @param newValue the new value from the TreeCellEditor
- *
- */
- public void valueForPathChanged(TreePath path, Object newValue)
- {
- //required for interface
- }
-}
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