org.icepdf.ri.common.views
Class AbstractDocumentViewModel

java.lang.Object
  org.icepdf.ri.common.views.AbstractDocumentViewModel

All Implemented Interfaces:

DocumentViewModel

Direct Known Subclasses:

DocumentViewModelImpl

public abstract class AbstractDocumentViewModel
extends java.lang.Object
implements DocumentViewModel

The AbstractDocumentViewModel is responsible for keeping the state of the document view. The AbstractDocumentViewModel also stores an list of PageViewComponents who's state is update as the model changes. The AbstractDocumentViewModel can be swapped into different page views quickly and efficiently.

Since:

2.5

See Also:

DocumentViewModelImpl

Field Summary

protected AnnotationComponent	currentAnnotation
protected org.icepdf.core.pobjects.Document	currentDocument
protected int	currentPageIndex
protected static int	MAX_PAGE_SIZE_READ_AHEAD
protected int	oldPageIndex
protected float	oldUserRotation
protected int	oldUserToolModeFlag
protected float	oldUserZoom
protected int	pageBoundary
protected java.util.List<AbstractPageViewComponent>	pageComponents
protected UndoCaretaker	undoCaretaker
protected float	userRotation
protected int	userToolModeFlag
protected float	userZoom

Fields inherited from interface org.icepdf.ri.common.views.DocumentViewModel

DISPLAY_TOOL_CIRCLE_ANNOTATION, DISPLAY_TOOL_FREE_TEXT_ANNOTATION, DISPLAY_TOOL_HIGHLIGHT_ANNOTATION, DISPLAY_TOOL_INK_ANNOTATION, DISPLAY_TOOL_LINE_ANNOTATION, DISPLAY_TOOL_LINE_ARROW_ANNOTATION, DISPLAY_TOOL_LINK_ANNOTATION, DISPLAY_TOOL_NONE, DISPLAY_TOOL_PAN, DISPLAY_TOOL_SELECTION, DISPLAY_TOOL_SQUARE_ANNOTATION, DISPLAY_TOOL_SQUIGGLY_ANNOTATION, DISPLAY_TOOL_STRIKEOUT_ANNOTATION, DISPLAY_TOOL_TEXT_ANNOTATION, DISPLAY_TOOL_TEXT_SELECTION, DISPLAY_TOOL_UNDERLINE_ANNOTATION, DISPLAY_TOOL_WAIT, DISPLAY_TOOL_ZOOM_DYNAMIC, DISPLAY_TOOL_ZOOM_IN, DISPLAY_TOOL_ZOOM_OUT

Constructor Summary

AbstractDocumentViewModel(org.icepdf.core.pobjects.Document currentDocument)

Method Summary

void	addMemento(org.icepdf.core.Memento oldMementoState, org.icepdf.core.Memento newMementoState) Adds memento state to the care taker.
void	addSelectedPageText(AbstractPageViewComponent pageComponent) Adds the specified page to selected page cache.
protected abstract AbstractPageViewComponent	buildPageViewComponent(DocumentViewModel documentViewModel, org.icepdf.core.pobjects.PageTree pageTree, int pageIndex, javax.swing.JScrollPane parentScrollPane, int width, int height)
void	clearSelectedPageText() Clears cache used to store which pages have selected state.
void	dispose() Free resources associated with this model.
UndoCaretaker	getAnnotationCareTaker() Gets annotation caretaker responsible for saving states as defined by the memento pattern.
AnnotationComponent	getCurrentAnnotation() Gets the currently selected annotation in the document model.
org.icepdf.core.pobjects.Document	getDocument() Gets the PDF document object associated with this views.
int	getPageBoundary() Gets the page boundary used to paint document pages.
java.awt.Rectangle	getPageBounds(int pageIndex) Gets the page bound of the specified page Index.
java.util.List<AbstractPageViewComponent>	getPageComponents() Gets the page components associated with this view model.
java.util.ArrayList<AbstractPageViewComponent>	getSelectedPageText() Gets the list of components that have a selected state.
int	getViewCurrentPageIndex() Gets the current page index represented in this model.
float	getViewRotation() Returns the zoom factor of the page visualization.
int	getViewToolMode() Gets the tool mode.
float	getViewZoom() Gets the view model zoom level.
boolean	isSelectAll() Gets the selected all state of the document pages view.
boolean	isViewToolModeSelected(int viewToolMode) Checks if the specified tool mode is set in the view model.
void	removeSelectedPageText(AbstractPageViewComponent pageComponent) Removes the specified page to selected page cache.
void	setCurrentAnnotation(AnnotationComponent currentAnnotation) Sets the current annotation.
void	setPageBoundary(int pageBoundary) Sets the page boundary used to paint a page.
void	setSelectAll(boolean selectAll) Sets the select all state of the text in the document.
boolean	setViewCurrentPageIndex(int pageIndex) Sets the view model current page index.
boolean	setViewRotation(float viewRotation) Sets the view rotation of this model.
boolean	setViewToolMode(int viewToolMode) Sets the view tool mode.
boolean	setViewZoom(float viewZoom) Sets the zoom factor of the page visualization.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

currentDocument

protected org.icepdf.core.pobjects.Document currentDocument

pageComponents

protected java.util.List<AbstractPageViewComponent> pageComponents

undoCaretaker

protected UndoCaretaker undoCaretaker

currentAnnotation

protected AnnotationComponent currentAnnotation

userZoom

protected float userZoom

oldUserZoom

protected float oldUserZoom

userRotation

protected float userRotation

oldUserRotation

protected float oldUserRotation

currentPageIndex

protected int currentPageIndex

oldPageIndex

protected int oldPageIndex

pageBoundary

protected int pageBoundary

userToolModeFlag

protected int userToolModeFlag

oldUserToolModeFlag

protected int oldUserToolModeFlag

MAX_PAGE_SIZE_READ_AHEAD

protected static final int MAX_PAGE_SIZE_READ_AHEAD

See Also:

Constant Field Values

Constructor Detail

AbstractDocumentViewModel

public AbstractDocumentViewModel(org.icepdf.core.pobjects.Document currentDocument)

Method Detail

buildPageViewComponent

protected abstract AbstractPageViewComponent buildPageViewComponent(DocumentViewModel documentViewModel,
                                                                    org.icepdf.core.pobjects.PageTree pageTree,
                                                                    int pageIndex,
                                                                    javax.swing.JScrollPane parentScrollPane,
                                                                    int width,
                                                                    int height)

getDocument

public org.icepdf.core.pobjects.Document getDocument()

Description copied from interface: DocumentViewModel

Gets the PDF document object associated with this views.

Specified by:

getDocument in interface DocumentViewModel

Returns:

PDF document which is associated with this view.

getPageComponents

public java.util.List<AbstractPageViewComponent> getPageComponents()

Description copied from interface: DocumentViewModel

Gets the page components associated with this view model.

Specified by:

getPageComponents in interface DocumentViewModel

Returns:

vector of page components.

setViewCurrentPageIndex

public boolean setViewCurrentPageIndex(int pageIndex)

Description copied from interface: DocumentViewModel

Sets the view model current page index.

Specified by:

setViewCurrentPageIndex in interface DocumentViewModel

Parameters:

pageIndex - zero based current pages page index of the document.

Returns:

true if the page index could be set, false otherwise.

getViewCurrentPageIndex

public int getViewCurrentPageIndex()

Description copied from interface: DocumentViewModel

Gets the current page index represented in this model.

Specified by:

getViewCurrentPageIndex in interface DocumentViewModel

Returns:

zero based page page index.

getSelectedPageText

public java.util.ArrayList<AbstractPageViewComponent> getSelectedPageText()

Gets the list of components that have a selected state. The WeakReference must be check to make sure the page was not disposed of for for some reason by the the memory manager.

Specified by:

getSelectedPageText in interface DocumentViewModel

Returns:

list of pages that are in a selected state.

isSelectAll

public boolean isSelectAll()

Gets the selected all state of the document pages view.

Specified by:

isSelectAll in interface DocumentViewModel

Returns:

true if all pages are ina selected state, false otherwise.

setSelectAll

public void setSelectAll(boolean selectAll)

Sets the select all state of the text in the document. If true the document text is all selected; otherwise, false. This is only a flag and must be interpreted by the pages and page view components.

Specified by:

setSelectAll in interface DocumentViewModel

Parameters:

selectAll - to to specify all text is selected, false to specify no text is selected

addSelectedPageText

public void addSelectedPageText(AbstractPageViewComponent pageComponent)

Adds the specified page to selected page cache. No checking is done to make sure of selected text. The caches is used as an optimization to make sure selected text can be cleared quickly.

Specified by:

addSelectedPageText in interface DocumentViewModel

Parameters:

pageComponent - pageView component to add to list.

removeSelectedPageText

public void removeSelectedPageText(AbstractPageViewComponent pageComponent)

Removes the specified page to selected page cache. No checking is done to make sure of selected text. The caches is used as an optimization to make sure selected text can be cleared quickly.

Specified by:

removeSelectedPageText in interface DocumentViewModel

Parameters:

pageComponent - pageView component to add to list.

clearSelectedPageText

public void clearSelectedPageText()

Clears cache used to store which pages have selected state.

Specified by:

clearSelectedPageText in interface DocumentViewModel

setViewZoom

public boolean setViewZoom(float viewZoom)

Sets the zoom factor of the page visualization. A zoom factor of 1.0f is equal to 100% or actual size. A zoom factor of 0.5f is equal to 50% of the original size.

Specified by:

setViewZoom in interface DocumentViewModel

Parameters:

viewZoom - zoom factor

Returns:

if zoom actually changed

getViewZoom

public float getViewZoom()

Description copied from interface: DocumentViewModel

Gets the view model zoom level.

Specified by:

getViewZoom in interface DocumentViewModel

Returns:

zoom level of this view model

setViewRotation

public boolean setViewRotation(float viewRotation)

Description copied from interface: DocumentViewModel

Sets the view rotation of this model.

Specified by:

setViewRotation in interface DocumentViewModel

Parameters:

viewRotation - rotation in degrees

Returns:

true if the view rotation was set correctly, otherwise false.

getViewRotation

public float getViewRotation()

Returns the zoom factor of the page visualization. A zoom factor of 1.0f is equal to 100% or actual size. A zoom factor of 0.5f is equal to 50% of the original size.

Specified by:

getViewRotation in interface DocumentViewModel

Returns:

zoom factor

setViewToolMode

public boolean setViewToolMode(int viewToolMode)

Description copied from interface: DocumentViewModel

Sets the view tool mode.

Specified by:

setViewToolMode in interface DocumentViewModel

Parameters:

viewToolMode - selected tool mode, pan, zoom and et.

Returns:

true if the view tool was set correctly, false otherwise.

getViewToolMode

public int getViewToolMode()

Description copied from interface: DocumentViewModel

Gets the tool mode.

Specified by:

getViewToolMode in interface DocumentViewModel

Returns:

tool mode.

isViewToolModeSelected

public boolean isViewToolModeSelected(int viewToolMode)

Description copied from interface: DocumentViewModel

Checks if the specified tool mode is set in the view model.

Specified by:

isViewToolModeSelected in interface DocumentViewModel

Parameters:

viewToolMode - tool model to check if selected.

Returns:

true if specified tool mode is selected, otherwise false.

setPageBoundary

public void setPageBoundary(int pageBoundary)

Sets the page boundary used to paint a page.

Specified by:

setPageBoundary in interface DocumentViewModel

Parameters:

pageBoundary - page bounds

getPageBoundary

public int getPageBoundary()

Description copied from interface: DocumentViewModel

Gets the page boundary used to paint document pages.

Specified by:

getPageBoundary in interface DocumentViewModel

Returns:

page boundary type as defined in the class Page.

getPageBounds

public java.awt.Rectangle getPageBounds(int pageIndex)

Description copied from interface: DocumentViewModel

Gets the page bound of the specified page Index.

Specified by:

getPageBounds in interface DocumentViewModel

Parameters:

pageIndex - zero based page index.

Returns:

bounds of specified page. If page index. is not valid, null is returned.

dispose

public void dispose()

Description copied from interface: DocumentViewModel

Free resources associated with this model.

Specified by:

dispose in interface DocumentViewModel

getCurrentAnnotation

public AnnotationComponent getCurrentAnnotation()

Gets the currently selected annotation in the document model.

Specified by:

getCurrentAnnotation in interface DocumentViewModel

Returns:

currently selected annotation, null if there is none.

setCurrentAnnotation

public void setCurrentAnnotation(AnnotationComponent currentAnnotation)

Sets the current annotation. This is mainly called by the UI tools when editing and selecting page annotations.

Specified by:

setCurrentAnnotation in interface DocumentViewModel

Parameters:

currentAnnotation - annotation to make current.

getAnnotationCareTaker

public UndoCaretaker getAnnotationCareTaker()

Gets annotation caretaker responsible for saving states as defined by the memento pattern.

Returns:

document level annotation care taker.

addMemento

public void addMemento(org.icepdf.core.Memento oldMementoState,
                       org.icepdf.core.Memento newMementoState)

Description copied from interface: DocumentViewModel

Adds memento state to the care taker.

Specified by:

addMemento in interface DocumentViewModel

Parameters:

oldMementoState - original state.

newMementoState - new state.