JTable.AccessibleJTable.AccessibleJTableCell (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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javax.swing
Class JTable.AccessibleJTable.AccessibleJTableCell

java.lang.Object
  javax.accessibility.AccessibleContext
      javax.swing.JTable.AccessibleJTable.AccessibleJTableCell

All Implemented Interfaces:: Accessible, AccessibleComponent

Enclosing class:: JTable.AccessibleJTable

protected class JTable.AccessibleJTable.AccessibleJTableCell
extends AccessibleContext
implements Accessible, AccessibleComponent
extends AccessibleContext
implements Accessible, AccessibleComponent

The class provides an implementation of the Java Accessibility API appropriate to table cells.

Field Summary

Fields inherited from 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, accessibleName, accessibleParent

Constructor Summary

JTable.AccessibleJTable.AccessibleJTableCell(JTable t, int r, int c, int i)
          Constructs an AccessibleJTableHeaderEntry.

Method Summary

void addFocusListener(FocusListener l)
          Adds the specified focus listener to receive focus events from this component.

void addPropertyChangeListener(PropertyChangeListener l)
          Adds a PropertyChangeListener to the listener list.

boolean contains(Point p)
          Checks 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.

AccessibleAction getAccessibleAction()
          Gets the AccessibleAction associated with this object if one exists.

Accessible getAccessibleAt(Point p)
          Returns the Accessible child, if one exists, contained at the local coordinate Point.

Accessible getAccessibleChild(int i)
          Returns the specified Accessible child of the object.

int getAccessibleChildrenCount()
          Returns the number of accessible children in the object.

AccessibleComponent getAccessibleComponent()
          Gets the AccessibleComponent associated with this object if one exists.

AccessibleContext getAccessibleContext()
          Gets the AccessibleContext associated with this component.

String getAccessibleDescription()
          Gets the accessible description of this object.

int getAccessibleIndexInParent()
          Gets the index of this object in its accessible parent.

String getAccessibleName()
          Gets the accessible name of this object.

Accessible getAccessibleParent()
          Gets the Accessible parent of this object.

AccessibleRole getAccessibleRole()
          Gets the role of this object.

AccessibleSelection getAccessibleSelection()
          Gets the AccessibleSelection associated with this object if one exists.

AccessibleStateSet getAccessibleStateSet()
          Gets the state set of this object.

AccessibleText getAccessibleText()
          Gets the AccessibleText associated with this object if one exists.

AccessibleValue getAccessibleValue()
          Gets the AccessibleValue associated with this object if one exists.

Color getBackground()
          Gets the background color of this object.

Rectangle getBounds()
          Gets the bounds of this object in the form of a Rectangle object.

protected AccessibleContext getCurrentAccessibleContext()
          Gets the AccessibleContext for the table cell renderer.

protected Component getCurrentComponent()
          Gets the table cell renderer component.

Cursor getCursor()
          Gets the Cursor of this object.

Font getFont()
          Gets the Font of this object.

FontMetrics getFontMetrics(Font f)
          Gets the FontMetrics of this object.

Color getForeground()
          Gets the foreground color of this object.

Locale getLocale()
          Gets the locale of the component.

Point getLocation()
          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.

Point getLocationOnScreen()
          Returns the location of the object on the screen.

Dimension getSize()
          Returns the size of this object in the form of a Dimension object.

boolean isEnabled()
          Determines if the object is enabled.

boolean isFocusTraversable()
          Returns whether this object can accept focus or not.

boolean isShowing()
          Determines if the object is showing.

boolean isVisible()
          Determines if this object is visible.

void removeFocusListener(FocusListener l)
          Removes the specified focus listener so it no longer receives focus events from this component.

void removePropertyChangeListener(PropertyChangeListener l)
          Removes a PropertyChangeListener from the listener list.

void requestFocus()
          Requests focus for this object.

void setAccessibleDescription(String s)
          Sets the accessible description of this object.

void setAccessibleName(String s)
          Sets the localized accessible name of this object.

void setBackground(Color c)
          Sets the background color of this object.

void setBounds(Rectangle r)
          Sets the bounds of this object in the form of a Rectangle object.

void setCursor(Cursor c)
          Sets the Cursor of this object.

void setEnabled(boolean b)
          Sets the enabled state of the object.

void setFont(Font f)
          Sets the Font of this object.

void setForeground(Color c)
          Sets the foreground color of this object.

void setLocation(Point p)
          Sets the location of the object relative to the parent.

void setSize(Dimension d)
          Resizes this object so that it has width and height.

void setVisible(boolean b)
          Sets the visible state of the object.

Methods inherited from class javax.accessibility.AccessibleContext

firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent

Methods inherited from class java.lang.Object

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

Fields inherited from 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, accessibleName, accessibleParent

Constructor Summary
`JTable.AccessibleJTable.AccessibleJTableCell(JTable t, int r, int c, int i)` Constructs an `AccessibleJTableHeaderEntry`.

Method Summary
`void`	`addFocusListener(FocusListener l)` Adds the specified focus listener to receive focus events from this component.
`void`	`addPropertyChangeListener(PropertyChangeListener l)` Adds a `PropertyChangeListener` to the listener list.
`boolean`	`contains(Point p)` Checks 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.
`AccessibleAction`	`getAccessibleAction()` Gets the `AccessibleAction` associated with this object if one exists.
`Accessible`	`getAccessibleAt(Point p)` Returns the Accessible child, if one exists, contained at the local coordinate Point.
`Accessible`	`getAccessibleChild(int i)` Returns the specified `Accessible` child of the object.
`int`	`getAccessibleChildrenCount()` Returns the number of accessible children in the object.
`AccessibleComponent`	`getAccessibleComponent()` Gets the `AccessibleComponent` associated with this object if one exists.
`AccessibleContext`	`getAccessibleContext()` Gets the `AccessibleContext` associated with this component.
`String`	`getAccessibleDescription()` Gets the accessible description of this object.
`int`	`getAccessibleIndexInParent()` Gets the index of this object in its accessible parent.
`String`	`getAccessibleName()` Gets the accessible name of this object.
`Accessible`	`getAccessibleParent()` Gets the `Accessible` parent of this object.
`AccessibleRole`	`getAccessibleRole()` Gets the role of this object.
`AccessibleSelection`	`getAccessibleSelection()` Gets the `AccessibleSelection` associated with this object if one exists.
`AccessibleStateSet`	`getAccessibleStateSet()` Gets the state set of this object.
`AccessibleText`	`getAccessibleText()` Gets the `AccessibleText` associated with this object if one exists.
`AccessibleValue`	`getAccessibleValue()` Gets the `AccessibleValue` associated with this object if one exists.
`Color`	`getBackground()` Gets the background color of this object.
`Rectangle`	`getBounds()` Gets the bounds of this object in the form of a Rectangle object.
`protected AccessibleContext`	`getCurrentAccessibleContext()` Gets the AccessibleContext for the table cell renderer.
`protected Component`	`getCurrentComponent()` Gets the table cell renderer component.
`Cursor`	`getCursor()` Gets the `Cursor` of this object.
`Font`	`getFont()` Gets the `Font` of this object.
`FontMetrics`	`getFontMetrics(Font f)` Gets the `FontMetrics` of this object.
`Color`	`getForeground()` Gets the foreground color of this object.
`Locale`	`getLocale()` Gets the locale of the component.
`Point`	`getLocation()` 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.
`Point`	`getLocationOnScreen()` Returns the location of the object on the screen.
`Dimension`	`getSize()` Returns the size of this object in the form of a Dimension object.
`boolean`	`isEnabled()` Determines if the object is enabled.
`boolean`	`isFocusTraversable()` Returns whether this object can accept focus or not.
`boolean`	`isShowing()` Determines if the object is showing.
`boolean`	`isVisible()` Determines if this object is visible.
`void`	`removeFocusListener(FocusListener l)` Removes the specified focus listener so it no longer receives focus events from this component.
`void`	`removePropertyChangeListener(PropertyChangeListener l)` Removes a `PropertyChangeListener` from the listener list.
`void`	`requestFocus()` Requests focus for this object.
`void`	`setAccessibleDescription(String s)` Sets the accessible description of this object.
`void`	`setAccessibleName(String s)` Sets the localized accessible name of this object.
`void`	`setBackground(Color c)` Sets the background color of this object.
`void`	`setBounds(Rectangle r)` Sets the bounds of this object in the form of a Rectangle object.
`void`	`setCursor(Cursor c)` Sets the `Cursor` of this object.
`void`	`setEnabled(boolean b)` Sets the enabled state of the object.
`void`	`setFont(Font f)` Sets the `Font` of this object.
`void`	`setForeground(Color c)` Sets the foreground color of this object.
`void`	`setLocation(Point p)` Sets the location of the object relative to the parent.
`void`	`setSize(Dimension d)` Resizes this object so that it has width and height.
`void`	`setVisible(boolean b)` Sets the visible state of the object.

Methods inherited from class javax.accessibility.AccessibleContext
`firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

JTable.AccessibleJTable.AccessibleJTableCell

public JTable.AccessibleJTable.AccessibleJTableCell(JTable t,
                                                    int r,
                                                    int c,
                                                    int i)

Constructs an AccessibleJTableHeaderEntry.

Since:: 1.4

Method Detail

getAccessibleContext

public AccessibleContext getAccessibleContext()

Gets the AccessibleContext associated with this component. In the implementation of the Java Accessibility API for this class, return this object, which is its own AccessibleContext.

Specified by:: getAccessibleContext in interface Accessible

Returns:: this object

getCurrentAccessibleContext

protected AccessibleContext getCurrentAccessibleContext()

Gets the AccessibleContext for the table cell renderer.

Returns:: the AccessibleContext for the table cell renderer if one exists; otherwise, returns null.
Since:: 1.6

getCurrentComponent

protected Component getCurrentComponent()

Gets the table cell renderer component.

Returns:: the table cell renderer component if one exists; otherwise, returns null.
Since:: 1.6

getAccessibleName

public String getAccessibleName()

Gets the accessible name of this object.

Overrides:: getAccessibleName in class AccessibleContext

Returns:: the localized name of the object; null if this object does not have a name
See Also:: AccessibleContext.setAccessibleName(java.lang.String)

setAccessibleName

public void setAccessibleName(String s)

Sets the localized accessible name of this object.

Overrides:: setAccessibleName in class AccessibleContext

Parameters:: s - the new localized name of the object
See Also:: AccessibleContext.getAccessibleName(), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleDescription

public String getAccessibleDescription()

Gets the accessible description of this object.

Overrides:: getAccessibleDescription in class AccessibleContext

Returns:: the localized description of the object; null if this object does not have a description
See Also:: AccessibleContext.setAccessibleDescription(java.lang.String)

setAccessibleDescription

public void setAccessibleDescription(String s)

Sets the accessible description of this object.

Overrides:: setAccessibleDescription in class AccessibleContext

Parameters:: s - the new localized description of the object
See Also:: AccessibleContext.setAccessibleName(java.lang.String), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleRole

public AccessibleRole getAccessibleRole()

Gets the role of this object.

Specified by:: getAccessibleRole in class AccessibleContext

Returns:: an instance of AccessibleRole describing the role of the object
See Also:: AccessibleRole

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Gets the state set of this object.

Specified by:: getAccessibleStateSet in class AccessibleContext

Returns:: an instance of AccessibleStateSet containing the current state set of the object
See Also:: AccessibleState

getAccessibleParent

public Accessible getAccessibleParent()

Gets the Accessible parent of this object.

Overrides:: getAccessibleParent in class AccessibleContext

Returns:: the Accessible parent of this object; null if this object does not have an Accessible parent

getAccessibleIndexInParent

public int getAccessibleIndexInParent()

Gets the index of this object in its accessible parent.

Specified by:: getAccessibleIndexInParent in class AccessibleContext

Returns:: the index of this object in its parent; -1 if this object does not have an accessible parent
See Also:: getAccessibleParent()

getAccessibleChildrenCount

public int getAccessibleChildrenCount()

Returns the number of accessible children in the object.

Specified by:: getAccessibleChildrenCount in class AccessibleContext

Returns:: the number of accessible children in the object

getAccessibleChild

public Accessible getAccessibleChild(int i)

Returns the specified Accessible child of the object.

Specified by:: getAccessibleChild in class AccessibleContext

Parameters:: i - zero-based index of child
Returns:: the Accessible child of the object
See Also:: AccessibleContext.getAccessibleChildrenCount()

getLocale

public Locale 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:: getLocale in class AccessibleContext

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:: Component.setLocale(java.util.Locale)

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener l)

Adds a PropertyChangeListener to the listener list. The listener is registered for all properties.

Overrides:: addPropertyChangeListener in class AccessibleContext

Parameters:: l - the PropertyChangeListener to be added
See Also:: AccessibleContext.ACCESSIBLE_NAME_PROPERTY, AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY, AccessibleContext.ACCESSIBLE_STATE_PROPERTY, AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY, AccessibleContext.ACCESSIBLE_TEXT_PROPERTY, AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener l)

Removes a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Overrides:: removePropertyChangeListener in class AccessibleContext

Parameters:: l - the PropertyChangeListener to be removed

getAccessibleAction

public AccessibleAction getAccessibleAction()

Gets the AccessibleAction associated with this object if one exists. Otherwise returns null.

Overrides:: getAccessibleAction in class AccessibleContext

Returns:: the AccessibleAction, or null
See Also:: AccessibleAction

getAccessibleComponent

public AccessibleComponent getAccessibleComponent()

Gets the AccessibleComponent associated with this object if one exists. Otherwise returns null.

Overrides:: getAccessibleComponent in class AccessibleContext

Returns:: the AccessibleComponent, or null
See Also:: AccessibleComponent

getAccessibleSelection

public AccessibleSelection getAccessibleSelection()

Gets the AccessibleSelection associated with this object if one exists. Otherwise returns null.

Overrides:: getAccessibleSelection in class AccessibleContext

Returns:: the AccessibleSelection, or null
See Also:: AccessibleSelection

getAccessibleText

public AccessibleText getAccessibleText()

Gets the AccessibleText associated with this object if one exists. Otherwise returns null.

Overrides:: getAccessibleText in class AccessibleContext

Returns:: the AccessibleText, or null
See Also:: AccessibleText

getAccessibleValue

public AccessibleValue getAccessibleValue()

Gets the AccessibleValue associated with this object if one exists. Otherwise returns null.

Overrides:: getAccessibleValue in class AccessibleContext

Returns:: the AccessibleValue, or null
See Also:: AccessibleValue

getBackground

public Color getBackground()

Gets the background color of this object.

Specified by:: getBackground in interface AccessibleComponent

Returns:: the background color, if supported, of the object; otherwise, null
See Also:: AccessibleComponent.setBackground(java.awt.Color)

setBackground

public void setBackground(Color c)

Sets the background color of this object.

Specified by:: setBackground in interface AccessibleComponent

Parameters:: c - the new Color for the background
See Also:: AccessibleComponent.setBackground(java.awt.Color)

getForeground

public Color getForeground()

Gets the foreground color of this object.

Specified by:: getForeground in interface AccessibleComponent

Returns:: the foreground color, if supported, of the object; otherwise, null
See Also:: AccessibleComponent.setForeground(java.awt.Color)

setForeground

public void setForeground(Color c)

Sets the foreground color of this object.

Specified by:: setForeground in interface AccessibleComponent

Parameters:: c - the new Color for the foreground
See Also:: AccessibleComponent.getForeground()

getCursor

public Cursor getCursor()

Gets the Cursor of this object.

Specified by:: getCursor in interface AccessibleComponent

Returns:: the Cursor, if supported, of the object; otherwise, null
See Also:: AccessibleComponent.setCursor(java.awt.Cursor)

setCursor

public void setCursor(Cursor c)

Sets the Cursor of this object.

Specified by:: setCursor in interface AccessibleComponent

Parameters:: c - the new Cursor for the object
See Also:: AccessibleComponent.getCursor()

getFont

public Font getFont()

Gets the Font of this object.

Specified by:: getFont in interface AccessibleComponent

Returns:: the Font,if supported, for the object; otherwise, null
See Also:: AccessibleComponent.setFont(java.awt.Font)

setFont

public void setFont(Font f)

Sets the Font of this object.

Specified by:: setFont in interface AccessibleComponent

Parameters:: f - the new Font for the object
See Also:: AccessibleComponent.getFont()

getFontMetrics

public FontMetrics getFontMetrics(Font f)

Gets the FontMetrics of this object.

Specified by:: getFontMetrics in interface AccessibleComponent

Parameters:: f - the Font
Returns:: the FontMetrics object, if supported; otherwise null
See Also:: getFont()

isEnabled

public boolean isEnabled()

Determines if the object is enabled.

Specified by:: isEnabled in interface AccessibleComponent

Returns:: true if object is enabled; otherwise, false
See Also:: AccessibleComponent.setEnabled(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.ENABLED, AccessibleStateSet

setEnabled

public void setEnabled(boolean b)

Sets the enabled state of the object.

Specified by:: setEnabled in interface AccessibleComponent

Parameters:: b - if true, enables this object; otherwise, disables it
See Also:: AccessibleComponent.isEnabled()

isVisible

public boolean isVisible()

Determines if this object is visible. Note: this means that the object intends to be visible; however, it may not in fact be showing on the screen because one of the objects that this object is contained by is not visible. To determine if an object is showing on the screen, use isShowing.

Specified by:: isVisible in interface AccessibleComponent

Returns:: true if object is visible; otherwise, false
See Also:: AccessibleComponent.setVisible(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.VISIBLE, AccessibleStateSet

setVisible

public void setVisible(boolean b)

Sets the visible state of the object.

Specified by:: setVisible in interface AccessibleComponent

Parameters:: b - if true, shows this object; otherwise, hides it
See Also:: AccessibleComponent.isVisible()

isShowing

public boolean isShowing()

Determines if the object is showing. This is determined by checking the visibility of the object and ancestors of the object. Note: this will return true even if the object is obscured by another (for example, it happens to be underneath a menu that was pulled down).

Specified by:: isShowing in interface AccessibleComponent

Returns:: true if the object is showing; otherwise, false

contains

public boolean contains(Point p)

Checks 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:: contains in interface AccessibleComponent

Parameters:: p - the Point relative to the coordinate system of the object
Returns:: true if object contains Point; otherwise false
See Also:: AccessibleComponent.getBounds()

getLocationOnScreen

public Point getLocationOnScreen()

Returns the location of the object on the screen.

Specified by:: getLocationOnScreen in interface AccessibleComponent

Returns:: location of object on screen -- can be null if this object is not on the screen
See Also:: AccessibleComponent.getBounds(), AccessibleComponent.getLocation()

getLocation

public Point getLocation()

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.

Specified by:: getLocation in interface AccessibleComponent

Returns:: an instance of Point representing the top-left corner of the object's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen
See Also:: AccessibleComponent.getBounds(), AccessibleComponent.getLocationOnScreen()

setLocation

public void setLocation(Point p)

Sets the location of the object relative to the parent.

Specified by:: setLocation in interface AccessibleComponent

Parameters:: p - the new position for the top-left corner
See Also:: AccessibleComponent.getLocation()