Package com.lowagie.rups.controller
Class PdfReaderController
- java.lang.Object
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- java.util.Observable
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- com.lowagie.rups.controller.PdfReaderController
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- All Implemented Interfaces:
java.util.Observer
public class PdfReaderController extends java.util.Observable implements java.util.Observer
Controls the GUI components that get their content from iText's PdfReader.
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Field Summary
Fields Modifier and Type Field Description protected javax.swing.JTabbedPane
editorTabs
Tabbed Pane containing other components.protected FormTree
form
Treeview of the form.protected javax.swing.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 StreamTextArea
streamArea
A panel that will show a stream.protected XRefTable
xref
JTable corresponding with the CrossReference table.
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Constructor Summary
Constructors Constructor Description PdfReaderController(javax.swing.event.TreeSelectionListener treeSelectionListener, PageSelectionListener pageSelectionListener)
Constructs the PdfReaderController.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description javax.swing.JTabbedPane
getEditorTabs()
Getter for the tabs with the editor windows (to which the Console window will be added).javax.swing.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.StreamTextArea
getStreamArea()
Getter for the object that holds the TextArea 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(java.lang.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(java.util.Observable observable, java.lang.Object obj)
Forwards updates from the RupsController to the Observers of this class.
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Field Detail
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pdfTree
protected PdfTree pdfTree
Treeview of the PDF file.
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navigationTabs
protected javax.swing.JTabbedPane navigationTabs
Tabbed Pane containing other components.
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pages
protected PagesTable pages
JTable with all the pages and their labels.
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outlines
protected OutlineTree outlines
Treeview of the outlines.
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form
protected FormTree form
Treeview of the form.
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xref
protected XRefTable xref
JTable corresponding with the CrossReference table.
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objectPanel
protected PdfObjectPanel objectPanel
A panel that will show PdfObjects.
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editorTabs
protected javax.swing.JTabbedPane editorTabs
Tabbed Pane containing other components.
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streamArea
protected StreamTextArea streamArea
A panel that will show a stream.
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nodes
protected TreeNodeFactory nodes
The factory producing tree nodes.
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Constructor Detail
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PdfReaderController
public PdfReaderController(javax.swing.event.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 eventpageSelectionListener
- when somebody changes a page, this listener changes accordingly
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Method Detail
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getPdfTree
public PdfTree getPdfTree()
Getter for the PDF Tree.- Returns:
- the PdfTree object
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getNavigationTabs
public javax.swing.JTabbedPane getNavigationTabs()
Getter for the tabs that allow you to navigate through the PdfTree quickly (pages, form, outlines, xref table).- Returns:
- a JTabbedPane
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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
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getEditorTabs
public javax.swing.JTabbedPane getEditorTabs()
Getter for the tabs with the editor windows (to which the Console window will be added).- Returns:
- the tabs with the editor windows
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getStreamArea
public StreamTextArea getStreamArea()
Getter for the object that holds the TextArea with the content stream of a PdfStream object.- Returns:
- a StreamTextArea
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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
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notifyObservers
public void notifyObservers(java.lang.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 classjava.util.Observable
- Parameters:
obj
- in this case the Object should be an ObjectLoader- See Also:
Observable.notifyObservers(java.lang.Object)
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selectNode
public void selectNode(PdfObjectTreeNode node)
Selects a node in the PdfTree.- Parameters:
node
- a node in the PdfTree
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selectNode
public void selectNode(int objectNumber)
Selects a node in the PdfTree.- Parameters:
objectNumber
- a number of a node in the PdfTree
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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.- Parameters:
object
- the object to render
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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
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update
public void update(java.util.Observable observable, java.lang.Object obj)
Forwards updates from the RupsController to the Observers of this class.- Specified by:
update
in interfacejava.util.Observer
- Parameters:
observable
- this should be the RupsControllerobj
- the object that has to be forwarded to the observers of PdfReaderController- See Also:
Observer.update(java.util.Observable, java.lang.Object)
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