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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.4.2
javax.swing.text
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Nested Class Summary |
Nested classes inherited from class java.awt.geom.Rectangle2D |
Rectangle2D.Double, Rectangle2D.Float |
Field Summary | |
protected ChangeEvent |
changeEvent
The change event for the model. |
protected EventListenerList |
listenerList
The event listener list. |
Fields inherited from class java.awt.Rectangle |
height, width, x, y |
Fields inherited from class java.awt.geom.Rectangle2D |
OUT_BOTTOM, OUT_LEFT, OUT_RIGHT, OUT_TOP |
Constructor Summary | |
DefaultCaret()
Constructs a default caret. |
Method Summary | |
void |
addChangeListener(ChangeListener l)
Adds a listener to track whenever the caret position has been changed. |
protected void |
adjustVisibility(Rectangle nloc)
Scrolls the associated view (if necessary) to make the caret visible. |
protected void |
damage(Rectangle r)
Damages the area surrounding the caret to cause it to be repainted in a new location. |
void |
deinstall(JTextComponent c)
Called when the UI is being removed from the interface of a JTextComponent. |
boolean |
equals(Object obj)
Compares this object to the specified object. |
protected void |
fireStateChanged()
Notifies all listeners that have registered interest for notification on this event type. |
void |
focusGained(FocusEvent e)
Called when the component containing the caret gains focus. |
void |
focusLost(FocusEvent e)
Called when the component containing the caret loses focus. |
int |
getBlinkRate()
Gets the caret blink rate. |
ChangeListener[] |
getChangeListeners()
Returns an array of all the change listeners registered on this caret. |
protected JTextComponent |
getComponent()
Gets the text editor component that this caret is is bound to. |
int |
getDot()
Fetches the current position of the caret. |
EventListener[] |
getListeners(Class listenerType)
Returns an array of all the objects currently registered as FooListener s
upon this caret. |
Point |
getMagicCaretPosition()
Gets the saved caret position. |
int |
getMark()
Fetches the current position of the mark. |
protected Highlighter.HighlightPainter |
getSelectionPainter()
Gets the painter for the Highlighter. |
void |
install(JTextComponent c)
Called when the UI is being installed into the interface of a JTextComponent. |
boolean |
isSelectionVisible()
Checks whether the current selection is visible. |
boolean |
isVisible()
Determines if the caret is currently visible. |
void |
mouseClicked(MouseEvent e)
Called when the mouse is clicked. |
void |
mouseDragged(MouseEvent e)
Moves the caret position according to the mouse pointer's current location. |
void |
mouseEntered(MouseEvent e)
Called when the mouse enters a region. |
void |
mouseExited(MouseEvent e)
Called when the mouse exits a region. |
void |
mouseMoved(MouseEvent e)
Called when the mouse is moved. |
void |
mousePressed(MouseEvent e)
If button 1 is pressed, this is implemented to request focus on the associated text component, and to set the caret position. |
void |
mouseReleased(MouseEvent e)
Called when the mouse is released. |
protected void |
moveCaret(MouseEvent e)
Tries to move the position of the caret from the coordinates of a mouse event, using viewToModel(). |
void |
moveDot(int dot)
Moves the caret position to some other position. |
void |
paint(Graphics g)
Renders the caret as a vertical line. |
protected void |
positionCaret(MouseEvent e)
Tries to set the position of the caret from the coordinates of a mouse event, using viewToModel(). |
void |
removeChangeListener(ChangeListener l)
Removes a listener that was tracking caret position changes. |
protected void |
repaint()
Cause the caret to be painted. |
void |
setBlinkRate(int rate)
Sets the caret blink rate. |
void |
setDot(int dot)
Sets the caret position and mark to some position. |
void |
setMagicCaretPosition(Point p)
Saves the current caret position. |
void |
setSelectionVisible(boolean vis)
Changes the selection visibility. |
void |
setVisible(boolean e)
Sets the caret visibility, and repaints the caret. |
String |
toString()
Returns a String representing this
Rectangle and its values. |
Methods inherited from class java.awt.Rectangle |
add, add, add, contains, contains, contains, contains, createIntersection, createUnion, getBounds, getBounds2D, getHeight, getLocation, getSize, getWidth, getX, getY, grow, inside, intersection, intersects, isEmpty, move, outcode, reshape, resize, setBounds, setBounds, setLocation, setLocation, setRect, setSize, setSize, translate, union |
Methods inherited from class java.awt.geom.Rectangle2D |
add, add, add, contains, contains, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, setFrame, setRect, union |
Methods inherited from class java.awt.geom.RectangularShape |
clone, contains, contains, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.awt.Shape |
contains, contains, contains, contains, getPathIterator, getPathIterator, intersects, intersects |
Field Detail |
protected EventListenerList listenerList
protected transient ChangeEvent changeEvent
Constructor Detail |
public DefaultCaret()
Method Detail |
protected final JTextComponent getComponent()
protected final void repaint()
This method is thread safe, although most Swing methods are not. Please see Threads and Swing for more information.
protected void damage(Rectangle r)
r
- the current location of the caretpaint(java.awt.Graphics)
protected void adjustVisibility(Rectangle nloc)
nloc
- the new position to scroll toprotected Highlighter.HighlightPainter getSelectionPainter()
protected void positionCaret(MouseEvent e)
e
- the mouse eventprotected void moveCaret(MouseEvent e)
e
- the mouse eventpublic void focusGained(FocusEvent e)
focusGained
in interface FocusListener
e
- the focus eventFocusListener.focusGained(java.awt.event.FocusEvent)
public void focusLost(FocusEvent e)
focusLost
in interface FocusListener
e
- the focus eventFocusListener.focusLost(java.awt.event.FocusEvent)
public void mouseClicked(MouseEvent e)
mouseClicked
in interface MouseListener
e
- the mouse eventMouseListener.mouseClicked(java.awt.event.MouseEvent)
public void mousePressed(MouseEvent e)
mousePressed
in interface MouseListener
e
- the mouse eventMouseListener.mousePressed(java.awt.event.MouseEvent)
public void mouseReleased(MouseEvent e)
mouseReleased
in interface MouseListener
e
- the mouse eventMouseListener.mouseReleased(java.awt.event.MouseEvent)
public void mouseEntered(MouseEvent e)
mouseEntered
in interface MouseListener
e
- the mouse eventMouseListener.mouseEntered(java.awt.event.MouseEvent)
public void mouseExited(MouseEvent e)
mouseExited
in interface MouseListener
e
- the mouse eventMouseListener.mouseExited(java.awt.event.MouseEvent)
public void mouseDragged(MouseEvent e)
mouseDragged
in interface MouseMotionListener
e
- the mouse eventMouseMotionListener.mouseDragged(java.awt.event.MouseEvent)
public void mouseMoved(MouseEvent e)
mouseMoved
in interface MouseMotionListener
e
- the mouse eventMouseMotionListener.mouseMoved(java.awt.event.MouseEvent)
public void paint(Graphics g)
If there are multiple text directions present in the associated document, a flag indicating the caret bias will be rendered. This will occur only if the associated document is a subclass of AbstractDocument and there are multiple bidi levels present in the bidi element structure (i.e. the text has multiple directions associated with it).
g
- the graphics contextdamage(java.awt.Rectangle)
public void install(JTextComponent c)
c
- the componentCaret.install(javax.swing.text.JTextComponent)
public void deinstall(JTextComponent c)
c
- the componentCaret.deinstall(javax.swing.text.JTextComponent)
public void addChangeListener(ChangeListener l)
addChangeListener
in interface Caret
l
- the listenerCaret.addChangeListener(javax.swing.event.ChangeListener)
public void removeChangeListener(ChangeListener l)
removeChangeListener
in interface Caret
l
- the listenerCaret.removeChangeListener(javax.swing.event.ChangeListener)
public ChangeListener[] getChangeListeners()
ChangeListener
s
or an empty
array if no change listeners are currently registeredaddChangeListener(javax.swing.event.ChangeListener)
,
removeChangeListener(javax.swing.event.ChangeListener)
protected void fireStateChanged()
EventListenerList
public EventListener[] getListeners(Class listenerType)
FooListener
s
upon this caret.
FooListener
s are registered using the
addFooListener
method.
You can specify the listenerType
argument
with a class literal,
such as
FooListener.class
.
For example, you can query a
DefaultCaret
c
for its change listeners with the following code:
ChangeListener[] cls = (ChangeListener[])(c.getListeners(ChangeListener.class));If no such listeners exist, this method returns an empty array.
listenerType
- the type of listeners requested; this parameter
should specify an interface that descends from
java.util.EventListener
FooListener
s on this component,
or an empty array if no such
listeners have been added
ClassCastException
- if listenerType
doesn't specify a class or interface that implements
java.util.EventListener
getChangeListeners()
public void setSelectionVisible(boolean vis)
setSelectionVisible
in interface Caret
vis
- the new visibilitypublic boolean isSelectionVisible()
isSelectionVisible
in interface Caret
public boolean isVisible()
Caret.isVisible()
public void setVisible(boolean e)
setVisible
in interface Caret
e
- the visibility specifierCaret.setVisible(boolean)
public void setBlinkRate(int rate)
setBlinkRate
in interface Caret
rate
- the rate in milliseconds, 0 to stop blinkingCaret.setBlinkRate(int)
public int getBlinkRate()
getBlinkRate
in interface Caret
Caret.getBlinkRate()
public int getDot()
Caret.getDot()
public int getMark()
Caret.getMark()
public void setDot(int dot)
dot
- the position >= 0Caret.setDot(int)
public void moveDot(int dot)
dot
- the position >= 0Caret.moveDot(int)
public void setMagicCaretPosition(Point p)
setMagicCaretPosition
in interface Caret
p
- the positiongetMagicCaretPosition()
public Point getMagicCaretPosition()
getMagicCaretPosition
in interface Caret
Caret.setMagicCaretPosition(java.awt.Point)
public boolean equals(Object obj)
obj
- the object to compare this font with
true
if the objects are equal;
false
otherwisepublic String toString()
Rectangle
String
representing this
Rectangle
and its values.
String
representing this
Rectangle
object's coordinate and size values.