Java javax.swing Class JSpinner.AccessibleJSpinner（JDK8）

Constructor Detail

• AccessibleJSpinner

  protected AccessibleJSpinner()

  AccessibleJSpinner constructor

Method Detail

• stateChanged

  public void stateChanged(ChangeEvent e)

  Invoked when the target of the listener has changed its state.

  Specified by:

  stateChanged in interface ChangeListener

  Parameters:

  e - a ChangeEvent object. Must not be null.

  Throws:

  NullPointerException - if the parameter is null.

• getAccessibleRole

  public AccessibleRole getAccessibleRole()

  Gets 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 is AccessibleRole.PUSH_BUTTON. The roles in AccessibleRole are 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., use AccessibleRole.PUSH_BUTTON for all components that act like a push button) as well as distinguish between subclasses that behave differently (e.g., AccessibleRole.CHECK_BOX for check boxes and AccessibleRole.RADIO_BUTTON for radio buttons).

  Note that the AccessibleRole class is also extensible, so custom component developers can define their own AccessibleRole's if the set of predefined roles is inadequate.

  Overrides:

  getAccessibleRole in class JComponent.AccessibleJComponent

  Returns:

  an instance of AccessibleRole describing the role of the object

  See Also:

  AccessibleRole

• getAccessibleChildrenCount

  public int getAccessibleChildrenCount()

  Returns the number of accessible children of the object.

  Overrides:

  getAccessibleChildrenCount in class JComponent.AccessibleJComponent

  Returns:

  the number of accessible children of the object.

• getAccessibleChild

  public Accessible getAccessibleChild(int i)

  Returns the specified Accessible child of the object. The Accessible children of an Accessible object are zero-based, so the first child of an Accessible child is at index 0, the second child is at index 1, and so on.

  Overrides:

  getAccessibleChild in class JComponent.AccessibleJComponent

  Parameters:

  i - zero-based index of child

  Returns:

  the Accessible child of the object

  See Also:

  getAccessibleChildrenCount()

• getAccessibleAction

  public AccessibleAction getAccessibleAction()

  Gets the AccessibleAction associated with this object that supports one or more actions.

  Overrides:

  getAccessibleAction in class AccessibleContext

  Returns:

  AccessibleAction if supported by object; else return null

  See Also:

  AccessibleAction

• getAccessibleText

  public AccessibleText getAccessibleText()

  Gets the AccessibleText associated with this object presenting text on the display.

  Overrides:

  getAccessibleText in class AccessibleContext

  Returns:

  AccessibleText if supported by object; else return null

  See Also:

  AccessibleText

• getAccessibleValue

  public AccessibleValue getAccessibleValue()

  Gets the AccessibleValue associated with this object.

  Overrides:

  getAccessibleValue in class AccessibleContext

  Returns:

  AccessibleValue if supported by object; else return null

  See Also:

  AccessibleValue

• getCurrentAccessibleValue

  public Number getCurrentAccessibleValue()

  Get the value of this object as a Number. If the value has not been set, the return value will be null.

  Specified by:

  getCurrentAccessibleValue in interface AccessibleValue

  Returns:

  value of the object

  See Also:

  setCurrentAccessibleValue(java.lang.Number)

• setCurrentAccessibleValue

  public boolean setCurrentAccessibleValue(Number n)

  Set the value of this object as a Number.

  Specified by:

  setCurrentAccessibleValue in interface AccessibleValue

  Parameters:

  n - the value to set for this object

  Returns:

  true if the value was set; else False

  See Also:

  getCurrentAccessibleValue()

• getMinimumAccessibleValue

  public Number getMinimumAccessibleValue()

  Get the minimum value of this object as a Number.

  Specified by:

  getMinimumAccessibleValue in interface AccessibleValue

  Returns:

  Minimum value of the object; null if this object does not have a minimum value

  See Also:

  getMaximumAccessibleValue()

• getMaximumAccessibleValue

  public Number getMaximumAccessibleValue()

  Get the maximum value of this object as a Number.

  Specified by:

  getMaximumAccessibleValue in interface AccessibleValue

  Returns:

  Maximum value of the object; null if this object does not have a maximum value

  See Also:

  getMinimumAccessibleValue()

• getAccessibleActionCount

  public 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. Two actions are supported: AccessibleAction.INCREMENT which increments the spinner value and AccessibleAction.DECREMENT which decrements the spinner value

  Specified by:

  getAccessibleActionCount in interface AccessibleAction

  Returns:

  the zero-based number of Actions in this object

• getAccessibleActionDescription

  public String getAccessibleActionDescription(int i)

  Returns a description of the specified action of the object.

  Specified by:

  getAccessibleActionDescription in interface AccessibleAction

  Parameters:

  i - zero-based index of the actions

  Returns:

  a String description of the action

  See Also:

  getAccessibleActionCount()

• doAccessibleAction

  public boolean doAccessibleAction(int i)

  Performs the specified Action on the object

  Specified by:

  doAccessibleAction in interface AccessibleAction

  Parameters:

  i - zero-based index of actions. The first action (index 0) is AccessibleAction.INCREMENT and the second action (index 1) is AccessibleAction.DECREMENT.

  Returns:

  true if the action was performed; otherwise false.

  See Also:

  getAccessibleActionCount()

• getIndexAtPoint

  public int getIndexAtPoint(Point p)

  Given a point in local coordinates, return the zero-based index of the character under that Point. If the point is invalid, this method returns -1.

  Specified by:

  getIndexAtPoint in interface AccessibleText

  Parameters:

  p - the Point in local coordinates

  Returns:

  the zero-based index of the character under Point p; if Point is invalid return -1.

• getCharacterBounds

  public Rectangle getCharacterBounds(int i)

  Determines the bounding box of the character at the given index into the string. The bounds are returned in local coordinates. If the index is invalid an empty rectangle is returned.

  Specified by:

  getCharacterBounds in interface AccessibleText

  Parameters:

  i - the index into the String

  Returns:

  the screen coordinates of the character's bounding box, if index is invalid return an empty rectangle.

• getCharCount

  public int getCharCount()

  Returns the number of characters (valid indicies)

  Specified by:

  getCharCount in interface AccessibleText

  Returns:

  the number of characters

• getCaretPosition

  public int getCaretPosition()

  Returns the zero-based offset of the caret. Note: That to the right of the caret will have the same index value as the offset (the caret is between two characters).

  Specified by:

  getCaretPosition in interface AccessibleText

  Returns:

  the zero-based offset of the caret.

• getAtIndex

  public String getAtIndex(int part,
                           int index)

  Returns the String at a given index.

  Specified by:

  getAtIndex in interface AccessibleText

  Parameters:

  part - the CHARACTER, WORD, or SENTENCE to retrieve

  index - an index within the text

  Returns:

  the letter, word, or sentence

• getAfterIndex

  public String getAfterIndex(int part,
                              int index)

  Returns the String after a given index.

  Specified by:

  getAfterIndex in interface AccessibleText

  Parameters:

  part - the CHARACTER, WORD, or SENTENCE to retrieve

  index - an index within the text

  Returns:

  the letter, word, or sentence

• getBeforeIndex

  public String getBeforeIndex(int part,
                               int index)

  Returns the String before a given index.

  Specified by:

  getBeforeIndex in interface AccessibleText

  Parameters:

  part - the CHARACTER, WORD, or SENTENCE to retrieve

  index - an index within the text

  Returns:

  the letter, word, or sentence

• getCharacterAttribute

  public AttributeSet getCharacterAttribute(int i)

  Returns the AttributeSet for a given character at a given index

  Specified by:

  getCharacterAttribute in interface AccessibleText

  Parameters:

  i - the zero-based index into the text

  Returns:

  the AttributeSet of the character

• getSelectionStart

  public int getSelectionStart()

  Returns the start offset within the selected text. If there is no selection, but there is a caret, the start and end offsets will be the same.

  Specified by:

  getSelectionStart in interface AccessibleText

  Returns:

  the index into the text of the start of the selection

• getSelectionEnd

  public int getSelectionEnd()

  Returns the end offset within the selected text. If there is no selection, but there is a caret, the start and end offsets will be the same.

  Specified by:

  getSelectionEnd in interface AccessibleText

  Returns:

  the index into the text of the end of the selection

• getSelectedText

  public String getSelectedText()

  Returns the portion of the text that is selected.

  Specified by:

  getSelectedText in interface AccessibleText

  Returns:

  the String portion of the text that is selected

• setTextContents

  public void setTextContents(String s)

  Sets the text contents to the specified string.

  Specified by:

  setTextContents in interface AccessibleEditableText

  Parameters:

  s - the string to set the text contents

• insertTextAtIndex

  public void insertTextAtIndex(int index,
                                String s)

  Inserts the specified string at the given index/

  Specified by:

  insertTextAtIndex in interface AccessibleEditableText

  Parameters:

  index - the index in the text where the string will be inserted

  s - the string to insert in the text

• getTextRange

  public String getTextRange(int startIndex,
                             int endIndex)

  Returns the text string between two indices.

  Specified by:

  getTextRange in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

  Returns:

  the text string between the indices

• delete

  public void delete(int startIndex,
                     int endIndex)

  Deletes the text between two indices

  Specified by:

  delete in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

• cut

  public void cut(int startIndex,
                  int endIndex)

  Cuts the text between two indices into the system clipboard.

  Specified by:

  cut in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

• paste

  public void paste(int startIndex)

  Pastes the text from the system clipboard into the text starting at the specified index.

  Specified by:

  paste in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

• replaceText

  public void replaceText(int startIndex,
                          int endIndex,
                          String s)

  Replaces the text between two indices with the specified string.

  Specified by:

  replaceText in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

  s - the string to replace the text between two indices

• selectText

  public void selectText(int startIndex,
                         int endIndex)

  Selects the text between two indices.

  Specified by:

  selectText in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

• setAttributes

  public void setAttributes(int startIndex,
                            int endIndex,
                            AttributeSet as)

  Sets attributes for the text between two indices.

  Specified by:

  setAttributes in interface AccessibleEditableText

  Parameters:

  startIndex - the starting index in the text

  endIndex - the ending index in the text

  as - the attribute set

  See Also:

  AttributeSet