Package org.eclipse.jface.text
Interface ITextViewerExtension2
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- All Known Implementing Classes:
ProjectionViewer,SourceViewer,TextConsoleViewer,TextViewer
public interface ITextViewerExtension2Extension interface forITextViewer.It provides
- text presentation invalidation enhancements
- text hover management enhancements
- a replacement for auto indent strategies
- support for custom painters
ITextViewer.setTextHover(ITextHover, String)with a new method that allows to specify state masks for a better control of the hover behavior.An
IAutoEditStrategyis a generalization of the originalIAutoIndentStrategy. Auto edit strategies can be arranged in a list that is executed like a pipeline when the viewer content is changed.A
IPainteris creating and managing visual decorations on the viewer's text widget. Viewer's can have an open number of painters. Painters are informed about changes to the viewer content and state and can take the necessary action in responds to the notification.- Since:
- 2.1
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Field Summary
Fields Modifier and Type Field Description static intDEFAULT_HOVER_STATE_MASKThe state mask of the default hover (value0xff).
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidaddPainter(IPainter painter)Adds the given painter to this viewer.ITextHovergetCurrentTextHover()Returns the currently displayed text hover if any,nullotherwise.PointgetHoverEventLocation()Returns the location at which the most recent mouse hover event has occurred.voidinvalidateTextPresentation(int offset, int length)Invalidates the viewer's text presentation for the given range.voidprependAutoEditStrategy(IAutoEditStrategy strategy, String contentType)Prepends the given auto edit strategy to the existing list of strategies for the specified content type.voidremoveAutoEditStrategy(IAutoEditStrategy strategy, String contentType)Removes the first occurrence of the given auto edit strategy in the list of strategies registered under the specified content type.voidremovePainter(IPainter painter)Removes the given painter from this viewer.voidremoveTextHovers(String contentType)Removes all text hovers for the given content type independent from their state mask.voidsetTextHover(ITextHover textViewerHover, String contentType, int stateMask)Sets this viewer's text hover for the given content type and the given state mask.
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Field Detail
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DEFAULT_HOVER_STATE_MASK
static final int DEFAULT_HOVER_STATE_MASK
The state mask of the default hover (value0xff).- See Also:
- Constant Field Values
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Method Detail
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invalidateTextPresentation
void invalidateTextPresentation(int offset, int length)Invalidates the viewer's text presentation for the given range.- Parameters:
offset- the offset of the first character to be redrawnlength- the length of the range to be redrawn
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setTextHover
void setTextHover(ITextHover textViewerHover, String contentType, int stateMask)
Sets this viewer's text hover for the given content type and the given state mask. If the given text hover isnull, any hover installed for the given content type and state mask is removed.- Parameters:
textViewerHover- the new hover ornullcontentType- the type for which the hover is to be registered or unregisteredstateMask- the SWT event state mask;DEFAULT_HOVER_STATE_MASKindicates that the hover is installed as the default hover.
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removeTextHovers
void removeTextHovers(String contentType)
Removes all text hovers for the given content type independent from their state mask.Note: To remove a hover for a given content type and state mask use
setTextHover(ITextHover, String, int)withnullas parameter for the text hover.- Parameters:
contentType- the type for which all text hovers are to be unregistered
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getCurrentTextHover
ITextHover getCurrentTextHover()
Returns the currently displayed text hover if any,nullotherwise.- Returns:
- the currently displayed text hover or
null
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getHoverEventLocation
Point getHoverEventLocation()
Returns the location at which the most recent mouse hover event has occurred.- Returns:
- the location of the most recent mouse hover event
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prependAutoEditStrategy
void prependAutoEditStrategy(IAutoEditStrategy strategy, String contentType)
Prepends the given auto edit strategy to the existing list of strategies for the specified content type. The strategies are called in the order in which they appear in the list of strategies.- Parameters:
strategy- the auto edit strategycontentType- the content type
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removeAutoEditStrategy
void removeAutoEditStrategy(IAutoEditStrategy strategy, String contentType)
Removes the first occurrence of the given auto edit strategy in the list of strategies registered under the specified content type.- Parameters:
strategy- the auto edit strategycontentType- the content type
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addPainter
void addPainter(IPainter painter)
Adds the given painter to this viewer.- Parameters:
painter- the painter to be added
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removePainter
void removePainter(IPainter painter)
Removes the given painter from this viewer. If the painter has not been added to this viewer, this call is without effect.- Parameters:
painter- the painter to be removed
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