javax.swing.text
Class JTextComponent.ComposedTextCaret

java.lang.Object
  java.awt.geom.RectangularShape
      java.awt.geom.Rectangle2D
          java.awt.Rectangle
              javax.swing.text.DefaultCaret
                  javax.swing.text.JTextComponent.ComposedTextCaret

All Implemented Interfaces:

Caret, Cloneable, EventListener, FocusListener, MouseListener, MouseMotionListener, Serializable, Shape

Enclosing class:

JTextComponent

class JTextComponent.ComposedTextCaret

extends DefaultCaret

implements Serializable

Nested Class Summary

Nested classes inherited from class javax.swing.text.DefaultCaret

DefaultCaret.SafeScroller, DefaultCaret.UpdateHandler

Nested classes inherited from class java.awt.geom.Rectangle2D

Rectangle2D.Double, Rectangle2D.Float

Field Summary

(package private) Color

bg

Fields inherited from class javax.swing.text.DefaultCaret

async, changeEvent, component, dot, dotBias, dotLTR, flasher, listenerList, magicCaretPosition, mark, markBias, markLTR, selectionTag, selectionVisible, updateHandler, visible

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

(package private)

JTextComponent.ComposedTextCaret()

Method Summary

void	install(JTextComponent c) Called when the UI is being installed into the interface of a JTextComponent.
void	paint(Graphics g) Renders the caret as a vertical line.
protected void	positionCaret(MouseEvent me) Tries to set the position of the caret from the coordinates of a mouse event, using viewToModel().

Methods inherited from class javax.swing.text.DefaultCaret

addChangeListener, adjustCaretAndFocus, adjustVisibility, changeCaretPosition, damage, deinstall, equals, fireStateChanged, focusGained, focusLost, getAsynchronousMovement, getBlinkRate, getChangeListeners, getComponent, getDot, getDotBias, getListeners, getMagicCaretPosition, getMark, getMarkBias, getSelectionPainter, guessBiasForOffset, handleMoveDot, handleSetDot, isDotLeftToRight, isMarkLeftToRight, isPositionLTR, isSelectionVisible, isVisible, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, moveCaret, moveDot, moveDot, removeChangeListener, repaint, repaintNewCaret, setAsynchronousMovement, setBlinkRate, setDot, setDot, setMagicCaretPosition, setSelectionVisible, setVisible, toString

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

bg

Color bg

Constructor Detail

JTextComponent.ComposedTextCaret

JTextComponent.ComposedTextCaret()

Method Detail

install

public void install(JTextComponent c)

Description copied from class: DefaultCaret

Called when the UI is being installed into the interface of a JTextComponent. This can be used to gain access to the model that is being navigated by the implementation of this interface. Sets the dot and mark to 0, and establishes document, property change, focus, mouse, and mouse motion listeners.

Specified by:

install in interface Caret

Overrides:

install in class DefaultCaret

Parameters:

c - the component

See Also:

Caret.install(javax.swing.text.JTextComponent)

paint

public void paint(Graphics g)

Description copied from class: DefaultCaret

Renders the caret as a vertical line. If this is reimplemented the damage method should also be reimplemented as it assumes the shape of the caret is a vertical line. Sets the caret color to the value returned by getCaretColor().

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).

Specified by:

paint in interface Caret

Overrides:

paint in class DefaultCaret

Parameters:

g - the graphics context

See Also:

DefaultCaret.damage(java.awt.Rectangle)

positionCaret

protected void positionCaret(MouseEvent me)

Description copied from class: DefaultCaret

Tries to set the position of the caret from the coordinates of a mouse event, using viewToModel().

Overrides:

positionCaret in class DefaultCaret

Parameters:

me - the mouse event