java.lang.Object
javax.accessibility.AccessibleContext
javax.swing.JTree.AccessibleJTree.AccessibleJTreeNode
- All Implemented Interfaces:
Accessible,AccessibleAction,AccessibleComponent,AccessibleSelection
- Enclosing class:
JTree.AccessibleJTree
protected class JTree.AccessibleJTree.AccessibleJTreeNode
extends AccessibleContext
implements Accessible, AccessibleComponent, AccessibleSelection, AccessibleAction
This class implements accessibility support for the
JTree child. It provides an implementation of the
Java Accessibility API appropriate to tree nodes.-
Field Summary
Fields declared in class javax.accessibility.AccessibleContext
ACCESSIBLE_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, accessibleNameFields declared in interface javax.accessibility.AccessibleAction
CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP -
Constructor Summary
ConstructorsConstructorDescriptionAccessibleJTreeNode(JTree t, TreePath p, Accessible ap) Constructs an AccessibleJTreeNode -
Method Summary
Modifier and TypeMethodDescriptionvoidaddAccessibleSelection(int i) Adds the specified selected item in the object to the object's selection.voidAdds the specified focus listener to receive focus events from this component.voidAdd a PropertyChangeListener to the listener list.voidClears the selection in the object, so that nothing in the object is selected.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) Perform the specified Action on the tree node.Get the AccessibleAction associated with this object.intReturns the number of accessible actions available in this tree node.Return a description of the specified action of the tree node.Returns theAccessiblechild, if one exists, contained at the local coordinatePoint.getAccessibleChild(int i) Return the specified Accessible child of the object.intReturns the number of accessible children in the object.Get the AccessibleComponent associated with this object.Get the AccessibleContext associated with this tree node.Get the accessible description of this object.intGet the index of this object in its accessible parent.Get the accessible name of this object.Get the Accessible parent of this object.Get the role of this object.Get the AccessibleSelection associated with this object if one exists.getAccessibleSelection(int i) Returns an Accessible representing the specified selected item in the object.intReturns the number of items currently selected.Get the state set of this object.Get the AccessibleText associated with this object if one exists.Get the AccessibleValue associated with this object if one exists.Get 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.Get 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.protected PointReturns the relative location of the nodeReturns the location of the object on the screen.getSize()Returns the size of this object in the form of aDimensionobject.booleanisAccessibleChildSelected(int i) Returns true if the current child of this object is selected.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.voidremoveAccessibleSelection(int i) Removes the specified selected item in the object from the object's selection.voidRemoves the specified focus listener so it no longer receives focus events from this component.voidRemove a PropertyChangeListener from the listener list.voidRequests focus for this object.voidCauses every selected item in the object to be selected if the object supports multiple selections.voidSet the accessible description of this object.voidSet the localized accessible name of this object.voidSet 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.AccessibleContext
firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent
-
Constructor Details
-
AccessibleJTreeNode
Constructs an AccessibleJTreeNode- Parameters:
t- an instance ofJTreep- an instance ofTreePathap- an instance ofAccessible- Since:
- 1.4
-
-
Method Details
-
getAccessibleContext
Get the AccessibleContext associated with this tree node. In the implementation of the Java Accessibility API for this class, return this object, which is its own AccessibleContext.- Specified by:
getAccessibleContextin interfaceAccessible- Returns:
- this object
-
getAccessibleName
Get the accessible name of this object.- Overrides:
getAccessibleNamein classAccessibleContext- Returns:
- the localized name of the object; null if this object does not have a name
- See Also:
-
setAccessibleName
Set the localized accessible name of this object.- Overrides:
setAccessibleNamein classAccessibleContext- Parameters:
s- the new localized name of the object.- See Also:
-
getAccessibleDescription
Get the accessible description of this object.- Overrides:
getAccessibleDescriptionin classAccessibleContext- Returns:
- the localized description of the object; null if this object does not have a description
- See Also:
-
setAccessibleDescription
Set the accessible description of this object.- Overrides:
setAccessibleDescriptionin classAccessibleContext- Parameters:
s- the new localized description of the object- See Also:
-
getAccessibleRole
Get the role of this object.- Specified by:
getAccessibleRolein classAccessibleContext- Returns:
- an instance of AccessibleRole describing the role of the object
- See Also:
-
getAccessibleStateSet
Get the state set of this object.- Specified by:
getAccessibleStateSetin classAccessibleContext- Returns:
- an instance of AccessibleStateSet containing the current state set of the object
- See Also:
-
getAccessibleParent
Get the Accessible parent of this object.- Overrides:
getAccessibleParentin classAccessibleContext- Returns:
- the Accessible parent of this object; null if this object does not have an Accessible parent
-
getAccessibleIndexInParent
public int getAccessibleIndexInParent()Get the index of this object in its accessible parent.- Specified by:
getAccessibleIndexInParentin classAccessibleContext- Returns:
- the index of this object in its parent; -1 if this object does not have an accessible parent.
- See Also:
-
getAccessibleChildrenCount
public int getAccessibleChildrenCount()Returns the number of accessible children in the object.- Specified by:
getAccessibleChildrenCountin classAccessibleContext- Returns:
- the number of accessible children in the object.
-
getAccessibleChild
Return the specified Accessible child of the object.- Specified by:
getAccessibleChildin classAccessibleContext- Parameters:
i- zero-based index of child- Returns:
- the Accessible child of the object
- See Also:
-
getLocale
Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.- Specified by:
getLocalein classAccessibleContext- Returns:
- This component's locale. If this component does not have a locale, the locale of its parent is returned.
- Throws:
IllegalComponentStateException- If the Component does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent.- See Also:
-
addPropertyChangeListener
Add a PropertyChangeListener to the listener list. The listener is registered for all properties.- Overrides:
addPropertyChangeListenerin classAccessibleContext- Parameters:
l- The PropertyChangeListener to be added- See Also:
-
removePropertyChangeListener
Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.- Overrides:
removePropertyChangeListenerin classAccessibleContext- Parameters:
l- The PropertyChangeListener to be removed
-
getAccessibleAction
Get the AccessibleAction associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleAction interface on behalf of itself.- Overrides:
getAccessibleActionin classAccessibleContext- Returns:
- this object
- See Also:
-
getAccessibleComponent
Get 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 classAccessibleContext- Returns:
- this object
- See Also:
-
getAccessibleSelection
Get the AccessibleSelection associated with this object if one exists. Otherwise return null.- Overrides:
getAccessibleSelectionin classAccessibleContext- Returns:
- the AccessibleSelection, or null
- See Also:
-
getAccessibleText
Get the AccessibleText associated with this object if one exists. Otherwise return null.- Overrides:
getAccessibleTextin classAccessibleContext- Returns:
- the AccessibleText, or null
- See Also:
-
getAccessibleValue
Get the AccessibleValue associated with this object if one exists. Otherwise return null.- Overrides:
getAccessibleValuein classAccessibleContext- Returns:
- the AccessibleValue, or null
- See Also:
-
getBackground
Get the background color of this object.- Specified by:
getBackgroundin interfaceAccessibleComponent- Returns:
- the background color, if supported, of the object; otherwise, null
- See Also:
-
setBackground
Set the background color of this object.- Specified by:
setBackgroundin interfaceAccessibleComponent- Parameters:
c- the new Color for the background- See Also:
-
getForeground
Get the foreground color of this object.- Specified by:
getForegroundin interfaceAccessibleComponent- Returns:
- the foreground color, if supported, of the object; otherwise, null
- See Also:
-
setForeground
Description copied from interface:AccessibleComponentSets the foreground color of this object.- Specified by:
setForegroundin interfaceAccessibleComponent- Parameters:
c- the new color for the foreground- See Also:
-
getCursor
Description copied from interface:AccessibleComponentGets the cursor of this object.- Specified by:
getCursorin interfaceAccessibleComponent- Returns:
- the cursor, if supported, of the object; otherwise,
null - See Also:
-
setCursor
Description copied from interface:AccessibleComponentSets the cursor of this object.- Specified by:
setCursorin interfaceAccessibleComponent- Parameters:
c- the new cursor for the object- See Also:
-
getFont
Description copied from interface:AccessibleComponentGets the font of this object.- Specified by:
getFontin interfaceAccessibleComponent- Returns:
- the font, if supported, for the object; otherwise,
null - See Also:
-
setFont
Description copied from interface:AccessibleComponentSets the font of this object.- Specified by:
setFontin interfaceAccessibleComponent- Parameters:
f- the new font for the object- See Also:
-
getFontMetrics
Description copied from interface:AccessibleComponentGets theFontMetricsof this object.- Specified by:
getFontMetricsin interfaceAccessibleComponent- Parameters:
f- the font for which font metrics is to be obtained- Returns:
- the
FontMetrics, if supported, the object; otherwise,null - See Also:
-
isEnabled
public 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 interfaceAccessibleComponent- Returns:
trueif object is enabled; otherwise,false- See Also:
-
setEnabled
public void setEnabled(boolean b) Description copied from interface:AccessibleComponentSets the enabled state of the object.- Specified by:
setEnabledin interfaceAccessibleComponent- Parameters:
b- iftrue, enables this object; otherwise, disables it- See Also:
-
isVisible
public 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 interfaceAccessibleComponent- Returns:
trueif object is visible; otherwise,false- See Also:
-
setVisible
public void setVisible(boolean b) Description copied from interface:AccessibleComponentSets the visible state of the object.- Specified by:
setVisiblein interfaceAccessibleComponent- Parameters:
b- iftrue, shows this object; otherwise, hides it- See Also:
-
isShowing
public 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 interfaceAccessibleComponent- Returns:
trueif object is showing; otherwise,false
-
contains
Description 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 interfaceAccessibleComponent- Parameters:
p- the point relative to the coordinate system of the object- Returns:
trueif object contains point; otherwisefalse- See Also:
-
getLocationOnScreen
Description copied from interface:AccessibleComponentReturns the location of the object on the screen.- Specified by:
getLocationOnScreenin interfaceAccessibleComponent- Returns:
- the location of the object on screen;
nullif this object is not on the screen - See Also:
-
getLocationInJTree
Returns the relative location of the node- Returns:
- the relative location of the node
-
getLocation
Description 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 interfaceAccessibleComponent- 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:
-
setLocation
Description copied from interface:AccessibleComponentSets the location of the object relative to the parent.- Specified by:
setLocationin interfaceAccessibleComponent- Parameters:
p- the new position for the top-left corner- See Also:
-
getBounds
Description 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 interfaceAccessibleComponent- Returns:
- A rectangle indicating this component's bounds;
nullif this object is not on the screen. - See Also:
-
setBounds
Description 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 interfaceAccessibleComponent- Parameters:
r- rectangle indicating this component's bounds- See Also:
-
getSize
Description 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 interfaceAccessibleComponent- Returns:
- A
Dimensionobject that indicates the size of this component;nullif this object is not on the screen - See Also:
-
setSize
Description copied from interface:AccessibleComponentResizes this object so that it has width and height.- Specified by:
setSizein interfaceAccessibleComponent- Parameters:
d- The dimension specifying the new size of the object- See Also:
-
getAccessibleAt
Returns theAccessiblechild, if one exists, contained at the local coordinatePoint. Otherwise returnsnull.- Specified by:
getAccessibleAtin interfaceAccessibleComponent- Parameters:
p- point in local coordinates of thisAccessible- Returns:
- the
Accessible, if it exists, at the specified location; elsenull
-
isFocusTraversable
public 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 interfaceAccessibleComponent- Returns:
trueif object can accept focus; otherwisefalse- See Also:
-
requestFocus
public 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 interfaceAccessibleComponent- See Also:
-
addFocusListener
Description copied from interface:AccessibleComponentAdds the specified focus listener to receive focus events from this component.- Specified by:
addFocusListenerin interfaceAccessibleComponent- Parameters:
l- the focus listener- See Also:
-
removeFocusListener
Description copied from interface:AccessibleComponentRemoves the specified focus listener so it no longer receives focus events from this component.- Specified by:
removeFocusListenerin interfaceAccessibleComponent- Parameters:
l- the focus listener- See Also:
-
getAccessibleSelectionCount
public int getAccessibleSelectionCount()Returns the number of items currently selected. If no items are selected, the return value will be 0.- Specified by:
getAccessibleSelectionCountin interfaceAccessibleSelection- Returns:
- the number of items currently selected.
-
getAccessibleSelection
Returns an Accessible representing the specified selected item in the object. If there isn't a selection, or there are fewer items selected than the integer passed in, the return value will be null.- Specified by:
getAccessibleSelectionin interfaceAccessibleSelection- Parameters:
i- the zero-based index of selected items- Returns:
- an Accessible containing the selected item
- See Also:
-
isAccessibleChildSelected
public boolean isAccessibleChildSelected(int i) Returns true if the current child of this object is selected.- Specified by:
isAccessibleChildSelectedin interfaceAccessibleSelection- Parameters:
i- the zero-based index of the child in this Accessible object.- Returns:
trueif the current child of this object is selected; elsefalse- See Also:
-
addAccessibleSelection
public void addAccessibleSelection(int i) Adds the specified selected item in the object to the object's selection. If the object supports multiple selections, the specified item is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified item is already selected, this method has no effect.- Specified by:
addAccessibleSelectionin interfaceAccessibleSelection- Parameters:
i- the zero-based index of selectable items- See Also:
-
removeAccessibleSelection
public void removeAccessibleSelection(int i) Removes the specified selected item in the object from the object's selection. If the specified item isn't currently selected, this method has no effect.- Specified by:
removeAccessibleSelectionin interfaceAccessibleSelection- Parameters:
i- the zero-based index of selectable items- See Also:
-
clearAccessibleSelection
public void clearAccessibleSelection()Clears the selection in the object, so that nothing in the object is selected.- Specified by:
clearAccessibleSelectionin interfaceAccessibleSelection
-
selectAllAccessibleSelection
public void selectAllAccessibleSelection()Causes every selected item in the object to be selected if the object supports multiple selections.- Specified by:
selectAllAccessibleSelectionin interfaceAccessibleSelection
-
getAccessibleActionCount
public int getAccessibleActionCount()Returns the number of accessible actions available in this tree node. If this node is not a leaf, there is at least one action (toggle expand), in addition to any available on the object behind the TreeCellRenderer.- Specified by:
getAccessibleActionCountin interfaceAccessibleAction- Returns:
- the number of Actions in this object
-
getAccessibleActionDescription
Return a description of the specified action of the tree node. If this node is not a leaf, there is at least one action description (toggle expand), in addition to any available on the object behind the TreeCellRenderer.- Specified by:
getAccessibleActionDescriptionin interfaceAccessibleAction- Parameters:
i- zero-based index of the actions- Returns:
- a description of the action
- See Also:
-
doAccessibleAction
public boolean doAccessibleAction(int i) Perform the specified Action on the tree node. If this node is not a leaf, there is at least one action which can be done (toggle expand), in addition to any available on the object behind the TreeCellRenderer.- Specified by:
doAccessibleActionin interfaceAccessibleAction- Parameters:
i- zero-based index of actions- Returns:
- true if the action was performed; else false.
- See Also:
-