org.eclipse.jface.text.source
Class SourceViewer

java.lang.Object
  |
  +--org.eclipse.jface.viewers.Viewer
        |
        +--org.eclipse.jface.text.TextViewer
              |
              +--org.eclipse.jface.text.source.SourceViewer

All Implemented Interfaces:

IInputProvider, IInputSelectionProvider, ISelectionProvider, ISourceViewer, ITextOperationTarget, ITextOperationTargetExtension, ITextViewer, ITextViewerExtension, IWidgetTokenOwner

public class SourceViewer

extends TextViewer

implements ISourceViewer

SWT based implementation of ISourceViewer. The same rules apply as for TextViewer. A source viewer uses an IVerticalRuler as its annotation presentation area. The vertical ruler is a small strip shown left of the viewer's text widget.

Clients are supposed to instantiate a source viewer and subsequently to communicate with it exclusively using the ISourceViewer interface. Clients should not subclass this class as it is rather likely that subclasses will be broken by future releases.

Nested Class Summary

Nested classes inherited from class org.eclipse.jface.text.TextViewer

TextViewer.WidgetCommand

Field Summary

protected IAnnotationHover	fAnnotationHover The viewer's annotation hover
protected IContentAssistant	fContentAssistant The viewer's content assistant
protected boolean	fContentAssistantInstalled Flag indicating whether the viewer's content assistant is installed
protected IContentFormatter	fContentFormatter The viewer's content formatter
protected IInformationPresenter	fInformationPresenter The viewer's information presenter
protected IPresentationReconciler	fPresentationReconciler The viewer's presentation reconciler
protected IReconciler	fReconciler The viewer's model reconciler
protected static int	GAP_SIZE The size of the gap between the vertical ruler and the text widget

Fields inherited from class org.eclipse.jface.text.TextViewer

fAutoIndentStrategies, fDefaultPrefixChars, fDoubleClickStrategies, fEventConsumer, fHoverControlCreator, fIgnoreAutoIndent, fIndentChars, fLastTopPixel, fReplaceTextPresentation, fTextHovers, fTextInputListeners, fTextListeners, fUndoManager, fViewportListeners, INTERNAL, KEY, MOUSE, MOUSE_END, RESIZE, SCROLLER, SHIFTING, TRACE_ERRORS

Fields inherited from class org.eclipse.jface.viewers.Viewer

WIDGET_DATA_KEY

Fields inherited from interface org.eclipse.jface.text.source.ISourceViewer

CONTENTASSIST_CONTEXT_INFORMATION, CONTENTASSIST_PROPOSALS, FORMAT, INFORMATION

Fields inherited from interface org.eclipse.jface.text.ITextOperationTarget

COPY, CUT, DELETE, PASTE, PREFIX, PRINT, REDO, SELECT_ALL, SHIFT_LEFT, SHIFT_RIGHT, STRIP_PREFIX, UNDO

Constructor Summary

SourceViewer(Composite parent, IVerticalRuler ruler, int styles)
Constructs a new source viewer.

Method Summary

void	activatePlugins() Activates the installed plug-ins.
boolean	canDoOperation(int operation) Returns whether the operation specified by the given operation code can be performed.
void	configure(SourceViewerConfiguration configuration) Configures the source viewer using the given configuration.
protected void	createControl(Composite parent, int styles) Creates the viewer's SWT control.
void	doOperation(int operation) Performs the operation specified by the operation code on the target.
void	enableOperation(int operation, boolean enable) Enables/disabled the given text operation.
IAnnotationModel	getAnnotationModel() Returns this viewer's annotation model.
Control	getControl() Returns the control of this viewer.
IRegion	getRangeIndication() Returns the viewer's range indication.
protected void	handleDispose() Frees all resources allocated by this viewer.
void	removeRangeIndication() Removes the viewer's range indication.
void	setAnnotationHover(IAnnotationHover annotationHover) Sets the annotation hover of this source viewer.
void	setDocument(IDocument document) Sets the given document as the text viewer's model and updates the presentation accordingly.
void	setDocument(IDocument document, IAnnotationModel annotationModel) Sets the given document as this viewer's text model and the given annotation model as the model for this viewer's visual annotations.
void	setDocument(IDocument document, IAnnotationModel annotationModel, int visibleRegionOffset, int visibleRegionLength) Sets the given document as this viewer's text model and the given annotation model as the model for this viewer's visual annotations.
void	setDocument(IDocument document, int visibleRegionOffset, int visibleRegionLength) Sets the given document as this viewer's model and makes the specified region visible in the presentation.
void	setRangeIndication(int start, int length, boolean moveCursor) Sets the viewers's range indication to the specified range.
void	setRangeIndicator(Annotation rangeIndicator) Sets the annotation used by this viewer as range indicator.
void	showAnnotations(boolean show) Controls the visibility of annotations and in the case of separate presentation areas of text and annotations, the visibility of the annotation's presentation area.

Methods inherited from class org.eclipse.jface.text.TextViewer

addTextInputListener, addTextListener, addViewportListener, appendVerifyKeyListener, areMultipleLinesSelected, canPerformFind, changeTextPresentation, createDocumentAdapter, createTextWidget, customizeDocumentCommand, deleteText, disableRedrawing, enabledRedrawing, findAndSelect, fireInputDocumentAboutToBeChanged, fireInputDocumentChanged, getAverageCharWidth, getBottomIndex, getBottomIndexEndOffset, getDocument, getFindReplaceTarget, getInput, getMark, getRewriteTarget, getSelectedRange, getSelection, getSelectionProvider, getTextHover, getTextHoveringController, getTextOperationTarget, getTextWidget, getTopIndex, getTopIndexStartOffset, getTopInset, getVisibleDocument, getVisibleLinesInViewport, getVisibleRegion, getVisibleRegionOffset, getWidthInPixels, getWidthInPixels, handleVerifyEvent, inputChanged, internalGetVisibleRegion, internalRevealRange, invalidateTextPresentation, isBlockSelected, isEditable, isPrintable, markChanged, overlapsWithVisibleRegion, prependVerifyKeyListener, print, redraws, refresh, releaseWidgetToken, removeTextInputListener, removeTextListener, removeVerifyKeyListener, removeViewportListener, requestWidgetToken, resetPlugins, resetVisibleRegion, revealRange, selectContentTypePlugin, selectionChanged, setAutoIndentStrategy, setDefaultPrefixes, setEditable, setEventConsumer, setHoverControlCreator, setIndentPrefixes, setInput, setMark, setRedraw, setSelectedRange, setSelection, setTextColor, setTextColor, setTextDoubleClickStrategy, setTextHover, setTopIndex, setUndoManager, setVisibleRegion, shift, shift, startSequentialRewriteMode, stopSequentialRewriteMode, updateTextListeners, updateViewportListeners, validateSelectionRange

Methods inherited from class org.eclipse.jface.viewers.Viewer

addHelpListener, addSelectionChangedListener, fireHelpRequested, fireSelectionChanged, getData, handleHelpRequest, removeHelpListener, removeSelectionChangedListener, scrollDown, scrollUp, setData, setSelection

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jface.text.ITextViewer

addTextInputListener, addTextListener, addViewportListener, changeTextPresentation, getBottomIndex, getBottomIndexEndOffset, getDocument, getFindReplaceTarget, getSelectedRange, getSelectionProvider, getTextOperationTarget, getTextWidget, getTopIndex, getTopIndexStartOffset, getTopInset, getVisibleRegion, invalidateTextPresentation, isEditable, overlapsWithVisibleRegion, removeTextInputListener, removeTextListener, removeViewportListener, resetPlugins, resetVisibleRegion, revealRange, setAutoIndentStrategy, setDefaultPrefixes, setEditable, setEventConsumer, setIndentPrefixes, setSelectedRange, setTextColor, setTextColor, setTextDoubleClickStrategy, setTextHover, setTopIndex, setUndoManager, setVisibleRegion

Field Detail

fContentAssistant

protected IContentAssistant fContentAssistant

The viewer's content assistant

fContentAssistantInstalled

protected boolean fContentAssistantInstalled

Flag indicating whether the viewer's content assistant is installed

Since:

2.0

fContentFormatter

protected IContentFormatter fContentFormatter

The viewer's content formatter

fReconciler

protected IReconciler fReconciler

The viewer's model reconciler

fPresentationReconciler

protected IPresentationReconciler fPresentationReconciler

The viewer's presentation reconciler

fAnnotationHover

protected IAnnotationHover fAnnotationHover

The viewer's annotation hover

fInformationPresenter

protected IInformationPresenter fInformationPresenter

The viewer's information presenter

Since:

2.0

GAP_SIZE

protected static final int GAP_SIZE

The size of the gap between the vertical ruler and the text widget

See Also:

Constant Field Values

Constructor Detail

SourceViewer

public SourceViewer(Composite parent,
                    IVerticalRuler ruler,
                    int styles)

Constructs a new source viewer. The vertical ruler is initially visible. The viewer has not yet been initialized with a source viewer configuration.

Parameters:

parent - the parent of the viewer's control

ruler - the vertical ruler used by this source viewer

styles - the SWT style bits

Method Detail

createControl

protected void createControl(Composite parent,
                             int styles)

Description copied from class: TextViewer

Creates the viewer's SWT control. The viewer's text widget either is the control or is a child of the control.

Overrides:

createControl in class TextViewer

Parameters:

parent - the parent of the viewer's control

styles - the SWT style bits for the viewer's control

getControl

public Control getControl()

Description copied from interface: ITextViewerExtension

Returns the control of this viewer.

Specified by:

getControl in interface ITextViewerExtension

Overrides:

getControl in class TextViewer

Returns:

the control of this viewer

setAnnotationHover

public void setAnnotationHover(IAnnotationHover annotationHover)

Description copied from interface: ISourceViewer

Sets the annotation hover of this source viewer. The annotation hover provides the information to be displayed in a hover popup window if requested over the annotation presentation area. The annotation hover is assumed to be line oriented.

Specified by:

setAnnotationHover in interface ISourceViewer

Parameters:

annotationHover - the hover to be used, null is a valid argument

configure

public void configure(SourceViewerConfiguration configuration)

Description copied from interface: ISourceViewer

Configures the source viewer using the given configuration.

Specified by:

configure in interface ISourceViewer

Parameters:

configuration - the source viewer configuration to be used

activatePlugins

public void activatePlugins()

Description copied from interface: ITextViewer

Activates the installed plug-ins. If the plug-ins are already activated this call has no effect.

Specified by:

activatePlugins in interface ITextViewer

Overrides:

activatePlugins in class TextViewer

setDocument

public void setDocument(IDocument document)

Description copied from interface: ITextViewer

Sets the given document as the text viewer's model and updates the presentation accordingly. An approriate TextEvent is issued. This text event does not carry a related document event.

Specified by:

setDocument in interface ITextViewer

Overrides:

setDocument in class TextViewer

Parameters:

document - the viewer's new input document

setDocument

public void setDocument(IDocument document,
                        int visibleRegionOffset,
                        int visibleRegionLength)

Description copied from interface: ITextViewer

Sets the given document as this viewer's model and makes the specified region visible in the presentation. An approriate TextEvent is issued. The text event does not carry a related document event. This method is a convenience method for setDocument(document);setVisibleRegion(offset, length).

Specified by:

setDocument in interface ITextViewer

Overrides:

setDocument in class TextViewer

Parameters:

document - the new input document

visibleRegionOffset - the offset of the visible region

visibleRegionLength - the length of the visible region

setDocument

public void setDocument(IDocument document,
                        IAnnotationModel annotationModel)

Description copied from interface: ISourceViewer

Sets the given document as this viewer's text model and the given annotation model as the model for this viewer's visual annotations. The presentation is accordingly updated. An approriate TextEvent is issued. This text event does not carry a related document event.

Specified by:

setDocument in interface ISourceViewer

Parameters:

document - the viewer's new input document

annotationModel - the model for the viewer's visual annotations

See Also:

ITextViewer.setDocument(IDocument)

setDocument

public void setDocument(IDocument document,
                        IAnnotationModel annotationModel,
                        int visibleRegionOffset,
                        int visibleRegionLength)

Description copied from interface: ISourceViewer

Sets the given document as this viewer's text model and the given annotation model as the model for this viewer's visual annotations. The presentation is accordingly updated whereby only the specified region is made visible. An approriate TextEvent is issued. The text event does not carry a related document event. This method is a convenience method for setDocument(document, annotationModel);setVisibleRegion(offset, length).

Specified by:

setDocument in interface ISourceViewer

Parameters:

document - the new input document

annotationModel - the model of the viewer's visual annotations

visibleRegionOffset - the offset of the visible region

visibleRegionLength - the length of the visible region

See Also:

ITextViewer.setDocument(IDocument, int, int)

getAnnotationModel

public IAnnotationModel getAnnotationModel()

Description copied from interface: ISourceViewer

Returns this viewer's annotation model.

Specified by:

getAnnotationModel in interface ISourceViewer

Returns:

this viewer's annotation model

handleDispose

protected void handleDispose()

Description copied from class: TextViewer

Frees all resources allocated by this viewer. Internally called when the viewer's control has been disposed.

Overrides:

handleDispose in class TextViewer

canDoOperation

public boolean canDoOperation(int operation)

Description copied from interface: ITextOperationTarget

Returns whether the operation specified by the given operation code can be performed.

Specified by:

canDoOperation in interface ITextOperationTarget

Overrides:

canDoOperation in class TextViewer

Parameters:

operation - the operation code

Returns:

true if the specified operation can be performed

doOperation

public void doOperation(int operation)

Description copied from interface: ITextOperationTarget

Performs the operation specified by the operation code on the target. doOperation must only be called if canDoOperation returns true.

Specified by:

doOperation in interface ITextOperationTarget

Overrides:

doOperation in class TextViewer

Parameters:

operation - the operation code

enableOperation

public void enableOperation(int operation,
                            boolean enable)

Description copied from interface: ITextOperationTargetExtension

Enables/disabled the given text operation.

Specified by:

enableOperation in interface ITextOperationTargetExtension

Overrides:

enableOperation in class TextViewer

Parameters:

operation - the operation to enable/disable

enable - true to enable the operation otherwise false

setRangeIndicator

public void setRangeIndicator(Annotation rangeIndicator)

Description copied from interface: ISourceViewer

Sets the annotation used by this viewer as range indicator. The range covered by this annotation is referred to as range indication.

Specified by:

setRangeIndicator in interface ISourceViewer

Parameters:

rangeIndicator - the annotation to be used as this viewer's range indicator

setRangeIndication

public void setRangeIndication(int start,
                               int length,
                               boolean moveCursor)

Description copied from interface: ISourceViewer

Sets the viewers's range indication to the specified range. Its is indicated whether the cursor should also be moved to the beginning of the specified range.

Specified by:

setRangeIndication in interface ISourceViewer

Parameters:

start - the offset of the range

length - the length of the range

moveCursor - indicates whether the cursor should be moved to the given offset

getRangeIndication

public IRegion getRangeIndication()

Description copied from interface: ISourceViewer

Returns the viewer's range indication.

Specified by:

getRangeIndication in interface ISourceViewer

Returns:

the viewer's range indication.

removeRangeIndication

public void removeRangeIndication()

Description copied from interface: ISourceViewer

Removes the viewer's range indication. There is no visible range indication after this method completed.

Specified by:

removeRangeIndication in interface ISourceViewer

Returns:

the viewer's range indication

showAnnotations

public void showAnnotations(boolean show)

Description copied from interface: ISourceViewer

Controls the visibility of annotations and in the case of separate presentation areas of text and annotations, the visibility of the annotation's presentation area.

By default, annotations and their presentation area are visible.

Specified by:

showAnnotations in interface ISourceViewer

Parameters:

show - indicates the visibility of annotations