Class InputMethodHighlight
- java.lang.Object
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- java.awt.im.InputMethodHighlight
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public class InputMethodHighlight extends Object
An InputMethodHighlight is used to describe the highlight attributes of text being composed. The description can be at two levels: at the abstract level it specifies the conversion state and whether the text is selected; at the concrete level it specifies style attributes used to render the highlight. An InputMethodHighlight must provide the description at the abstract level; it may or may not provide the description at the concrete level. If no concrete style is provided, a renderer should useToolkit.mapInputMethodHighlight(java.awt.im.InputMethodHighlight)to map to a concrete style.The abstract description consists of three fields:
selected,state, andvariation.selectedindicates whether the text range is the one that the input method is currently working on, for example, the segment for which conversion candidates are currently shown in a menu.staterepresents the conversion state. State values are defined by the input method framework and should be distinguished in all mappings from abstract to concrete styles. Currently defined state values are raw (unconverted) and converted. These state values are recommended for use before and after the main conversion step of text composition, say, before and after kana->kanji or pinyin->hanzi conversion. Thevariationfield allows input methods to express additional information about the conversion results.InputMethodHighlight instances are typically used as attribute values returned from AttributedCharacterIterator for the INPUT_METHOD_HIGHLIGHT attribute. They may be wrapped into
Annotationinstances to indicate separate text segments.- Since:
- 1.2
- See Also:
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AttributedCharacterIterator
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Field Summary
Fields Modifier and Type Field and Description static intCONVERTED_TEXTConstant for the converted text state.static intRAW_TEXTConstant for the raw text state.static InputMethodHighlightSELECTED_CONVERTED_TEXT_HIGHLIGHTConstant for the default highlight for selected converted text.static InputMethodHighlightSELECTED_RAW_TEXT_HIGHLIGHTConstant for the default highlight for selected raw text.static InputMethodHighlightUNSELECTED_CONVERTED_TEXT_HIGHLIGHTConstant for the default highlight for unselected converted text.static InputMethodHighlightUNSELECTED_RAW_TEXT_HIGHLIGHTConstant for the default highlight for unselected raw text.
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Constructor Summary
Constructors Constructor and Description InputMethodHighlight(boolean selected, int state)Constructs an input method highlight record.InputMethodHighlight(boolean selected, int state, int variation)Constructs an input method highlight record.InputMethodHighlight(boolean selected, int state, int variation, Map<TextAttribute,?> style)Constructs an input method highlight record.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description intgetState()Returns the conversion state of the text range.Map<TextAttribute,?>getStyle()Returns the rendering style attributes for the text range, or null.intgetVariation()Returns the variation of the text range.booleanisSelected()Returns whether the text range is selected.
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Field Detail
RAW_TEXT
public static final int RAW_TEXT
Constant for the raw text state.- See Also:
- Constant Field Values
CONVERTED_TEXT
public static final int CONVERTED_TEXT
Constant for the converted text state.- See Also:
- Constant Field Values
UNSELECTED_RAW_TEXT_HIGHLIGHT
public static final InputMethodHighlight UNSELECTED_RAW_TEXT_HIGHLIGHT
Constant for the default highlight for unselected raw text.
SELECTED_RAW_TEXT_HIGHLIGHT
public static final InputMethodHighlight SELECTED_RAW_TEXT_HIGHLIGHT
Constant for the default highlight for selected raw text.
UNSELECTED_CONVERTED_TEXT_HIGHLIGHT
public static final InputMethodHighlight UNSELECTED_CONVERTED_TEXT_HIGHLIGHT
Constant for the default highlight for unselected converted text.
SELECTED_CONVERTED_TEXT_HIGHLIGHT
public static final InputMethodHighlight SELECTED_CONVERTED_TEXT_HIGHLIGHT
Constant for the default highlight for selected converted text.
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Constructor Detail
InputMethodHighlight
public InputMethodHighlight(boolean selected, int state)Constructs an input method highlight record. The variation is set to 0, the style to null.- Parameters:
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selected- Whether the text range is selected -
state- The conversion state for the text range - RAW_TEXT or CONVERTED_TEXT - Throws:
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IllegalArgumentException- if a state other than RAW_TEXT or CONVERTED_TEXT is given - See Also:
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RAW_TEXT,CONVERTED_TEXT
InputMethodHighlight
public InputMethodHighlight(boolean selected, int state, int variation)Constructs an input method highlight record. The style is set to null.- Parameters:
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selected- Whether the text range is selected -
state- The conversion state for the text range - RAW_TEXT or CONVERTED_TEXT -
variation- The style variation for the text range - Throws:
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IllegalArgumentException- if a state other than RAW_TEXT or CONVERTED_TEXT is given - See Also:
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RAW_TEXT,CONVERTED_TEXT
InputMethodHighlight
public InputMethodHighlight(boolean selected, int state, int variation, Map<TextAttribute,?> style)Constructs an input method highlight record. The style attributes map provided must be unmodifiable.- Parameters:
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selected- whether the text range is selected -
state- the conversion state for the text range - RAW_TEXT or CONVERTED_TEXT -
variation- the variation for the text range -
style- the rendering style attributes for the text range, or null - Throws:
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IllegalArgumentException- if a state other than RAW_TEXT or CONVERTED_TEXT is given - Since:
- 1.3
- See Also:
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RAW_TEXT,CONVERTED_TEXT
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Method Detail
isSelected
public boolean isSelected()
Returns whether the text range is selected.
getState
public int getState()
Returns the conversion state of the text range.- Returns:
- The conversion state for the text range - RAW_TEXT or CONVERTED_TEXT.
- See Also:
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RAW_TEXT,CONVERTED_TEXT
getVariation
public int getVariation()
Returns the variation of the text range.
getStyle
public Map<TextAttribute,?> getStyle()
Returns the rendering style attributes for the text range, or null.- Since:
- 1.3
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