PdfReaderController (itext-rups 5.5.9 API)

java.lang.Object
- java.util.Observable
- - com.itextpdf.rups.controller.PdfReaderController

All Implemented Interfaces:

Observer
```
public class PdfReaderController
extends Observable
implements Observer
```
Controls the GUI components that get their content from iText's PdfReader.

Field Summary

Fields
Modifier and Type	Field and Description
`protected JTabbedPane`	`editorTabs` Tabbed Pane containing other components.
`protected FormTree`	`form` Treeview of the form.
`protected JTabbedPane`	`navigationTabs` Tabbed Pane containing other components.
`protected TreeNodeFactory`	`nodes` The factory producing tree nodes.
`protected PdfObjectPanel`	`objectPanel` A panel that will show PdfObjects.
`protected OutlineTree`	`outlines` Treeview of the outlines.
`protected PagesTable`	`pages` JTable with all the pages and their labels.
`protected PdfTree`	`pdfTree` Treeview of the PDF file.
`protected SyntaxHighlightedStreamPane`	`streamPane` A panel that will show a stream.
`protected StructureTree`	`structure` Treeview of the structure.
`protected XRefTable`	`xref` JTable corresponding with the CrossReference table.

Constructor Summary

Constructors
Constructor and Description
`PdfReaderController(TreeSelectionListener treeSelectionListener, PageSelectionListener pageSelectionListener)` Constructs the PdfReaderController.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addNonObserverTabs(PdfFile file)` Adds tabs that don't need to be an observer.
`JTabbedPane`	`getEditorTabs()` Getter for the tabs with the editor windows (to which the Console window will be added).
`JTabbedPane`	`getNavigationTabs()` Getter for the tabs that allow you to navigate through the PdfTree quickly (pages, form, outlines, xref table).
`PdfObjectPanel`	`getObjectPanel()` Getter for the panel that will show the contents of a PDF Object (except for PdfStreams: only the Stream Dictionary will be shown; the content stream is shown in a StreamTextArea object).
`PdfTree`	`getPdfTree()` Getter for the PDF Tree.
`SyntaxHighlightedStreamPane`	`getStreamPane()` Getter for the object that holds the TextPane with the content stream of a PdfStream object.
`void`	`gotoPage(int pageNumber)` Selects the row in the pageTable that corresponds with a certain page number.
`void`	`notifyObservers(Object obj)` The GUI components that show the internals of a PDF file, can only be shown if all objects are loaded into the IndirectObjectFactory using the ObjectLoader.
`void`	`render(PdfObject object)` Renders the syntax of a PdfObject in the objectPanel.
`void`	`selectNode(int objectNumber)` Selects a node in the PdfTree.
`void`	`selectNode(PdfObjectTreeNode node)` Selects a node in the PdfTree.
`void`	`startObjectLoader(PdfFile file)` Starts loading the PDF Objects in background.
`void`	`update(Observable observable, Object obj)` Forwards updates from the RupsController to the Observers of this class.

Methods inherited from class java.util.Observable
addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, setChanged

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - pdfTree
```
protected PdfTree pdfTree
```
    Treeview of the PDF file.
  - navigationTabs
```
protected JTabbedPane navigationTabs
```
    Tabbed Pane containing other components.
  - pages
```
protected PagesTable pages
```
    JTable with all the pages and their labels.
  - outlines
```
protected OutlineTree outlines
```
    Treeview of the outlines.
  - structure
```
protected StructureTree structure
```
    Treeview of the structure.
  - form
```
protected FormTree form
```
    Treeview of the form.
  - xref
```
protected XRefTable xref
```
    JTable corresponding with the CrossReference table.
  - objectPanel
```
protected PdfObjectPanel objectPanel
```
    A panel that will show PdfObjects.
  - editorTabs
```
protected JTabbedPane editorTabs
```
    Tabbed Pane containing other components.
  - streamPane
```
protected SyntaxHighlightedStreamPane streamPane
```
    A panel that will show a stream.
  - nodes
```
protected TreeNodeFactory nodes
```
    The factory producing tree nodes.
- Constructor Detail
  - PdfReaderController
```
public PdfReaderController(TreeSelectionListener treeSelectionListener,
                           PageSelectionListener pageSelectionListener)
```
    Constructs the PdfReaderController. This is an Observable object to which all iText related GUI components are added as Observers.
    
    Parameters:
    
    treeSelectionListener - when somebody selects a tree node, this listener listens to the event
    
    pageSelectionListener - when somebody changes a page, this listener changes accordingly
- Method Detail
  - getPdfTree
```
public PdfTree getPdfTree()
```
    Getter for the PDF Tree.
    
    Returns:
    
    the PdfTree object
  - getNavigationTabs
```
public JTabbedPane getNavigationTabs()
```
    Getter for the tabs that allow you to navigate through the PdfTree quickly (pages, form, outlines, xref table).
    
    Returns:
    
    a JTabbedPane
  - getObjectPanel
```
public PdfObjectPanel getObjectPanel()
```
    Getter for the panel that will show the contents of a PDF Object (except for PdfStreams: only the Stream Dictionary will be shown; the content stream is shown in a StreamTextArea object).
    
    Returns:
    
    the PdfObjectPanel
  - getEditorTabs
```
public JTabbedPane getEditorTabs()
```
    Getter for the tabs with the editor windows (to which the Console window will be added).
  - getStreamPane
```
public SyntaxHighlightedStreamPane getStreamPane()
```
    Getter for the object that holds the TextPane with the content stream of a PdfStream object.
    
    Returns:
    
    a StreamTextArea
  - startObjectLoader
```
public void startObjectLoader(PdfFile file)
```
    Starts loading the PDF Objects in background.
    
    Parameters:
    
    file - the wrapper object that holds the PdfReader as member variable
  - notifyObservers
```
public void notifyObservers(Object obj)
```
    The GUI components that show the internals of a PDF file, can only be shown if all objects are loaded into the IndirectObjectFactory using the ObjectLoader. As soon as this is done, the GUI components are notified.
    
    Overrides:
    
    notifyObservers in class Observable
    
    Parameters:
    
    obj - in this case the Object should be an ObjectLoader
    
    See Also:
    
    Observable.notifyObservers(java.lang.Object)
  - selectNode
```
public void selectNode(PdfObjectTreeNode node)
```
    Selects a node in the PdfTree.
    
    Parameters:
    
    node - a node in the PdfTree
  - selectNode
```
public void selectNode(int objectNumber)
```
    Selects a node in the PdfTree.
    
    Parameters:
    
    objectNumber - a number of a node in the PdfTree
  - render
```
public void render(PdfObject object)
```
    Renders the syntax of a PdfObject in the objectPanel. If the object is a PDF Stream, then the stream is shown in the streamArea too.
  - gotoPage
```
public void gotoPage(int pageNumber)
```
    Selects the row in the pageTable that corresponds with a certain page number.
    
    Parameters:
    
    pageNumber - the page number that needs to be selected
  - update
```
public void update(Observable observable,
                   Object obj)
```
    Forwards updates from the RupsController to the Observers of this class.
    
    Specified by:
    
    update in interface Observer
    
    Parameters:
    
    observable - this should be the RupsController
    
    obj - the object that has to be forwarded to the observers of PdfReaderController
    
    See Also:
    
    Observer.update(java.util.Observable, java.lang.Object)
  - addNonObserverTabs
```
public void addNonObserverTabs(PdfFile file)
```
    Adds tabs that don't need to be an observer. Also removes them when they are present to avoid duplication.
    
    Parameters:
    
    file -

Class PdfReaderController

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.util.Observable

Methods inherited from class java.lang.Object

Field Detail

pdfTree

navigationTabs

pages

outlines

structure

form

xref

objectPanel

editorTabs

streamPane

nodes

Constructor Detail

PdfReaderController

Method Detail

getPdfTree

getNavigationTabs

getObjectPanel

getEditorTabs

getStreamPane

startObjectLoader

notifyObservers

selectNode

selectNode

render

gotoPage

update

addNonObserverTabs