Class JList.AccessibleJList.AccessibleJListChild
java.lang.Object
javax.accessibility.AccessibleContext
javax.swing.JList.AccessibleJList.AccessibleJListChild
- All Implemented Interfaces:
- Accessible,- AccessibleAction,- AccessibleComponent
- Enclosing class:
- JList.AccessibleJList
protected class JList.AccessibleJList.AccessibleJListChild
extends AccessibleContext
implements Accessible, AccessibleComponent, AccessibleAction
This class implements accessibility support appropriate
 for list children.
- Since:
- 1.2
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Field SummaryFields declared in class javax.accessibility.AccessibleContextACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParentFields declared in interface javax.accessibility.AccessibleActionCLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP
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Constructor SummaryConstructorsConstructorDescriptionAccessibleJListChild(JList<E> parent, int indexInParent) Constructs anAccessibleJListChild.
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Method SummaryModifier and TypeMethodDescriptionvoidAdds the specified focus listener to receive focus events from this component.booleanChecks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.booleandoAccessibleAction(int i) Performs the specified action on the object.Gets theAccessibleActionassociated with this object that supports one or more actions.intReturns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object.Returns a description of the specified action of the object.Returns theAccessiblechild, if one exists, contained at the local coordinatePoint.getAccessibleChild(int i) Returns the specifiedAccessiblechild of the object.intReturns the number of accessible children of the object.Get the AccessibleComponent associated with this object.Get the AccessibleContext for this object.Returns the icon for the element renderer, as the only item of an array ofAccessibleIcons or anullarray if the renderer component contains no icons.intGets the 0-based index of this object in its accessible parent.Gets the role of this object.Gets the state set of this object.Gets the background color of this object.Gets the bounds of this object in the form of aRectangleobject.Gets the cursor of this object.getFont()Gets the font of this object.Gets theFontMetricsof this object.Gets the foreground color of this object.Gets the locale of the component.Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.Returns the location of the object on the screen.getSize()Returns the size of this object in the form of aDimensionobject.booleanDetermines if the object is enabled.booleanReturns whether this object can accept focus or not.booleanDetermines if the object is showing.booleanDetermines if the object is visible.voidRemoves the specified focus listener so it no longer receives focus events from this component.voidRequests focus for this object.voidSets the accessible description of this object.voidSets the localized accessible name of this object.voidSets the background color of this object.voidSets the bounds of this object in the form of aRectangleobject.voidSets the cursor of this object.voidsetEnabled(boolean b) Sets the enabled state of the object.voidSets the font of this object.voidSets the foreground color of this object.voidsetLocation(Point p) Sets the location of the object relative to the parent.voidResizes this object so that it has width and height.voidsetVisible(boolean b) Sets the visible state of the object.Methods declared in class javax.accessibility.AccessibleContextaddPropertyChangeListener, firePropertyChange, getAccessibleDescription, getAccessibleEditableText, getAccessibleName, getAccessibleParent, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, removePropertyChangeListener, setAccessibleParent
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Constructor Details- 
AccessibleJListChild
 
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Method Details- 
getAccessibleContextGet the AccessibleContext for this object. In the implementation of the Java Accessibility API for this class, returns this object, which is its own AccessibleContext.- Specified by:
- getAccessibleContextin interface- Accessible
- Returns:
- this object
 
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setAccessibleNameDescription copied from class:AccessibleContextSets the localized accessible name of this object. Changing the name will cause aPropertyChangeEventto be fired for theACCESSIBLE_NAME_PROPERTYproperty.- Overrides:
- setAccessibleNamein class- AccessibleContext
- Parameters:
- s- the new localized name of the object
- See Also:
 
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setAccessibleDescriptionDescription copied from class:AccessibleContextSets the accessible description of this object. Changing the name will cause aPropertyChangeEventto be fired for theACCESSIBLE_DESCRIPTION_PROPERTYproperty.- Overrides:
- setAccessibleDescriptionin class- AccessibleContext
- Parameters:
- s- the new localized description of the object
- See Also:
 
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getAccessibleRoleDescription copied from class:AccessibleContextGets the role of this object. The role of the object is the generic purpose or use of the class of this object. For example, the role of a push button isAccessibleRole.PUSH_BUTTON. The roles inAccessibleRoleare provided so component developers can pick from a set of predefined roles. This enables assistive technologies to provide a consistent interface to various tweaked subclasses of components (e.g., useAccessibleRole.PUSH_BUTTONfor all components that act like a push button) as well as distinguish between subclasses that behave differently (e.g.,AccessibleRole.CHECK_BOXfor check boxes andAccessibleRole.RADIO_BUTTONfor radio buttons).Note that the AccessibleRoleclass is also extensible, so custom component developers can define their ownAccessibleRole's if the set of predefined roles is inadequate.- Specified by:
- getAccessibleRolein class- AccessibleContext
- Returns:
- an instance of AccessibleRoledescribing the role of the object
- See Also:
 
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getAccessibleStateSetDescription copied from class:AccessibleContextGets the state set of this object. TheAccessibleStateSetof an object is composed of a set of uniqueAccessibleStates. A change in theAccessibleStateSetof an object will cause aPropertyChangeEventto be fired for theACCESSIBLE_STATE_PROPERTYproperty.- Specified by:
- getAccessibleStateSetin class- AccessibleContext
- Returns:
- an instance of AccessibleStateSetcontaining the current state set of the object
- See Also:
 
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getAccessibleIndexInParentpublic int getAccessibleIndexInParent()Description copied from class:AccessibleContextGets the 0-based index of this object in its accessible parent.- Specified by:
- getAccessibleIndexInParentin class- AccessibleContext
- Returns:
- the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.
- See Also:
 
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getAccessibleChildrenCountpublic int getAccessibleChildrenCount()Description copied from class:AccessibleContextReturns the number of accessible children of the object.- Specified by:
- getAccessibleChildrenCountin class- AccessibleContext
- Returns:
- the number of accessible children of the object.
 
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getAccessibleChildDescription copied from class:AccessibleContextReturns the specifiedAccessiblechild of the object. TheAccessiblechildren of anAccessibleobject are zero-based, so the first child of anAccessiblechild is at index 0, the second child is at index 1, and so on.- Specified by:
- getAccessibleChildin class- AccessibleContext
- Parameters:
- i- zero-based index of child
- Returns:
- the Accessiblechild of the object
- See Also:
 
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getLocaleDescription copied from class:AccessibleContextGets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.- Specified by:
- getLocalein class- AccessibleContext
- Returns:
- this component's locale. If this component does not have a locale, the locale of its parent is returned.
 
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getAccessibleComponentGet the AccessibleComponent associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleComponent interface on behalf of itself.- Overrides:
- getAccessibleComponentin class- AccessibleContext
- Returns:
- this object
- See Also:
 
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getBackgroundDescription copied from interface:AccessibleComponentGets the background color of this object.- Specified by:
- getBackgroundin interface- AccessibleComponent
- Returns:
- the background color, if supported, of the object; otherwise,
         null
- See Also:
 
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setBackgroundDescription copied from interface:AccessibleComponentSets the background color of this object.- Specified by:
- setBackgroundin interface- AccessibleComponent
- Parameters:
- c- the new color for the background
- See Also:
 
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getForegroundDescription copied from interface:AccessibleComponentGets the foreground color of this object.- Specified by:
- getForegroundin interface- AccessibleComponent
- Returns:
- the foreground color, if supported, of the object; otherwise,
         null
- See Also:
 
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setForegroundDescription copied from interface:AccessibleComponentSets the foreground color of this object.- Specified by:
- setForegroundin interface- AccessibleComponent
- Parameters:
- c- the new color for the foreground
- See Also:
 
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getCursorDescription copied from interface:AccessibleComponentGets the cursor of this object.- Specified by:
- getCursorin interface- AccessibleComponent
- Returns:
- the cursor, if supported, of the object; otherwise, null
- See Also:
 
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setCursorDescription copied from interface:AccessibleComponentSets the cursor of this object.- Specified by:
- setCursorin interface- AccessibleComponent
- Parameters:
- c- the new cursor for the object
- See Also:
 
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getFontDescription copied from interface:AccessibleComponentGets the font of this object.- Specified by:
- getFontin interface- AccessibleComponent
- Returns:
- the font, if supported, for the object; otherwise, null
- See Also:
 
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setFontDescription copied from interface:AccessibleComponentSets the font of this object.- Specified by:
- setFontin interface- AccessibleComponent
- Parameters:
- f- the new font for the object
- See Also:
 
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getFontMetricsDescription copied from interface:AccessibleComponentGets theFontMetricsof this object.- Specified by:
- getFontMetricsin interface- AccessibleComponent
- Parameters:
- f- the font for which font metrics is to be obtained
- Returns:
- the FontMetrics, if supported, the object; otherwise,null
- See Also:
 
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isEnabledpublic boolean isEnabled()Description copied from interface:AccessibleComponentDetermines if the object is enabled. Objects that are enabled will also have theAccessibleState.ENABLEDstate set in theirAccessibleStateSets.- Specified by:
- isEnabledin interface- AccessibleComponent
- Returns:
- trueif object is enabled; otherwise,- false
- See Also:
 
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setEnabledpublic void setEnabled(boolean b) Description copied from interface:AccessibleComponentSets the enabled state of the object.- Specified by:
- setEnabledin interface- AccessibleComponent
- Parameters:
- b- if- true, enables this object; otherwise, disables it
- See Also:
 
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isVisiblepublic boolean isVisible()Description copied from interface:AccessibleComponentDetermines if the object is visible. Note: this means that the object intends to be visible; however, it may not be showing on the screen because one of the objects that this object is contained by is currently not visible. To determine if an object is showing on the screen, useAccessibleComponent.isShowing()Objects that are visible will also have the AccessibleState.VISIBLEstate set in theirAccessibleStateSets.- Specified by:
- isVisiblein interface- AccessibleComponent
- Returns:
- trueif object is visible; otherwise,- false
- See Also:
 
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setVisiblepublic void setVisible(boolean b) Description copied from interface:AccessibleComponentSets the visible state of the object.- Specified by:
- setVisiblein interface- AccessibleComponent
- Parameters:
- b- if- true, shows this object; otherwise, hides it
- See Also:
 
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isShowingpublic boolean isShowing()Description copied from interface:AccessibleComponentDetermines if the object is showing. This is determined by checking the visibility of the object and its ancestors. Note: this will returntrueeven if the object is obscured by another (for example, it is underneath a menu that was pulled down).- Specified by:
- isShowingin interface- AccessibleComponent
- Returns:
- trueif object is showing; otherwise,- false
 
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containsDescription copied from interface:AccessibleComponentChecks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.- Specified by:
- containsin interface- AccessibleComponent
- Parameters:
- p- the point relative to the coordinate system of the object
- Returns:
- trueif object contains point; otherwise- false
- See Also:
 
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getLocationOnScreenDescription copied from interface:AccessibleComponentReturns the location of the object on the screen.- Specified by:
- getLocationOnScreenin interface- AccessibleComponent
- Returns:
- the location of the object on screen; nullif this object is not on the screen
- See Also:
 
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getLocationDescription copied from interface:AccessibleComponentGets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.- Specified by:
- getLocationin interface- AccessibleComponent
- Returns:
- An instance of Pointrepresenting the top-left corner of the object's bounds in the coordinate space of the screen;nullif this object or its parent are not on the screen
- See Also:
 
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setLocationDescription copied from interface:AccessibleComponentSets the location of the object relative to the parent.- Specified by:
- setLocationin interface- AccessibleComponent
- Parameters:
- p- the new position for the top-left corner
- See Also:
 
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getBoundsDescription copied from interface:AccessibleComponentGets the bounds of this object in the form of aRectangleobject. The bounds specify this object's width, height, and location relative to its parent.- Specified by:
- getBoundsin interface- AccessibleComponent
- Returns:
- A rectangle indicating this component's bounds; nullif this object is not on the screen.
- See Also:
 
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setBoundsDescription copied from interface:AccessibleComponentSets the bounds of this object in the form of aRectangleobject. The bounds specify this object's width, height, and location relative to its parent.- Specified by:
- setBoundsin interface- AccessibleComponent
- Parameters:
- r- rectangle indicating this component's bounds
- See Also:
 
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getSizeDescription copied from interface:AccessibleComponentReturns the size of this object in the form of aDimensionobject. Theheightfield of theDimensionobject contains this object's height, and thewidthfield of theDimensionobject contains this object's width.- Specified by:
- getSizein interface- AccessibleComponent
- Returns:
- A Dimensionobject that indicates the size of this component;nullif this object is not on the screen
- See Also:
 
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setSizeDescription copied from interface:AccessibleComponentResizes this object so that it has width and height.- Specified by:
- setSizein interface- AccessibleComponent
- Parameters:
- d- The dimension specifying the new size of the object
- See Also:
 
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getAccessibleAtDescription copied from interface:AccessibleComponentReturns theAccessiblechild, if one exists, contained at the local coordinatePoint.- Specified by:
- getAccessibleAtin interface- AccessibleComponent
- Parameters:
- p- The point relative to the coordinate system of this object
- Returns:
- the Accessible, if it exists, at the specified location; otherwisenull
 
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isFocusTraversablepublic boolean isFocusTraversable()Description copied from interface:AccessibleComponentReturns whether this object can accept focus or not. Objects that can accept focus will also have theAccessibleState.FOCUSABLEstate set in theirAccessibleStateSets.- Specified by:
- isFocusTraversablein interface- AccessibleComponent
- Returns:
- trueif object can accept focus; otherwise- false
- See Also:
 
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requestFocuspublic void requestFocus()Description copied from interface:AccessibleComponentRequests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.- Specified by:
- requestFocusin interface- AccessibleComponent
- See Also:
 
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addFocusListenerDescription copied from interface:AccessibleComponentAdds the specified focus listener to receive focus events from this component.- Specified by:
- addFocusListenerin interface- AccessibleComponent
- Parameters:
- l- the focus listener
- See Also:
 
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removeFocusListenerDescription copied from interface:AccessibleComponentRemoves the specified focus listener so it no longer receives focus events from this component.- Specified by:
- removeFocusListenerin interface- AccessibleComponent
- Parameters:
- l- the focus listener
- See Also:
 
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getAccessibleIconReturns the icon for the element renderer, as the only item of an array ofAccessibleIcons or anullarray if the renderer component contains no icons.- Overrides:
- getAccessibleIconin class- AccessibleContext
- Returns:
- an array containing the accessible icon
         or a nullarray if none
- Since:
- 1.3
- See Also:
 
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getAccessibleActionGets theAccessibleActionassociated with this object that supports one or more actions.- Overrides:
- getAccessibleActionin class- AccessibleContext
- Implementation Requirements:
- Returns the AccessibleAction for this AccessibleJListChild as follows: First getListCellRendererComponent of the ListCellRenderer for the component at the "index in parent" of this child is called. Then its AccessibleContext is fetched and that AccessibleContext's AccessibleAction is returned. Note that if an AccessibleAction is not found using this process then this object with its implementation of the AccessibleAction interface is returned.
- Returns:
- AccessibleActionif supported by object; else return- null
- Since:
- 9
- See Also:
 
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doAccessibleActionpublic boolean doAccessibleAction(int i) Performs the specified action on the object.- Specified by:
- doAccessibleActionin interface- AccessibleAction
- Implementation Requirements:
- If i == 0 selects this AccessibleJListChild by calling JList.this.setSelectedIndex(indexInParent) and then returns true; otherwise returns false.
- Parameters:
- i- zero-based index of actions
- Returns:
- trueif the action was performed; otherwise- false
- Since:
- 9
- See Also:
 
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getAccessibleActionDescriptionReturns a description of the specified action of the object.- Specified by:
- getAccessibleActionDescriptionin interface- AccessibleAction
- Implementation Requirements:
- If i == 0 returns the action description fetched from UIManager.getString("AbstractButton.clickText"); otherwise returns null.
- Parameters:
- i- zero-based index of the actions
- Returns:
- a Stringdescription of the action
- Since:
- 9
- See Also:
 
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getAccessibleActionCountpublic int getAccessibleActionCount()Returns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object.- Specified by:
- getAccessibleActionCountin interface- AccessibleAction
- Implementation Requirements:
- Returns 1, i.e. there is only one action.
- Returns:
- the zero-based number of actions in this object
- Since:
- 9
 
 
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