javax.swing.text
Class ComponentView.Invalidator

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.text.ComponentView.Invalidator

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable

Enclosing class:

ComponentView

class ComponentView.Invalidator

extends Container

This class feeds the invalidate back to the hosting View. This is needed to get the View hierarchy to consider giving the component a different size (i.e. layout may have been cached between the associated view and the container hosting this component).

Nested Class Summary

Nested classes inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

(package private) Dimension	max
(package private) Dimension	min
(package private) Dimension	pref
(package private) float	xalign
(package private) float	yalign

Fields inherited from class java.awt.Container

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

(package private)

ComponentView.Invalidator(Component child)

Method Summary

private void	cacheChildSizes()
void	doLayout() Causes this container to lay out its components.
float	getAlignmentX() Returns the alignment along the x axis.
float	getAlignmentY() Returns the alignment along the y axis.
Set	getFocusTraversalKeys(int id) Returns the Set of focus traversal keys for a given traversal operation for this Container.
Dimension	getMaximumSize() Returns the maximum size of this container.
Dimension	getMinimumSize() Returns the minimum size of this container.
Dimension	getPreferredSize() Returns the preferred size of this container.
void	invalidate() The components invalid layout needs to be propagated through the view hierarchy so the views (which position the component) can have their layout recomputed.
void	setBounds(int x, int y, int w, int h) Moves and resizes this component.
void	setVisible(boolean b) Shows or hides this component depending on the value of parameter b.
void	validateIfNecessary()

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addNotify, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getListeners, insets, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

min

Dimension min

pref

Dimension pref

max

Dimension max

yalign

float yalign

xalign

float xalign

Constructor Detail

ComponentView.Invalidator

ComponentView.Invalidator(Component child)

Method Detail

invalidate

public void invalidate()

The components invalid layout needs to be propagated through the view hierarchy so the views (which position the component) can have their layout recomputed.

Overrides:

invalidate in class Container

See Also:

Container.validate(), Container.layout(), LayoutManager

doLayout

public void doLayout()

Description copied from class: Container

Causes this container to lay out its components. Most programs should not call this method directly, but should invoke the validate method instead.

Overrides:

doLayout in class Container

See Also:

LayoutManager.layoutContainer(java.awt.Container), Container.setLayout(java.awt.LayoutManager), Container.validate()

setBounds

public void setBounds(int x,
                      int y,
                      int w,
                      int h)

Description copied from class: Component

Moves and resizes this component. The new location of the top-left corner is specified by x and y, and the new size is specified by width and height.

Overrides:

setBounds in class Component

Parameters:

x - the new x-coordinate of this component

y - the new y-coordinate of this component

w - the new width of this component

h - the new height of this component

See Also:

Component.getBounds(), Component.setLocation(int, int), Component.setLocation(Point), Component.setSize(int, int), Component.setSize(Dimension)

validateIfNecessary

public void validateIfNecessary()

cacheChildSizes

private void cacheChildSizes()

setVisible

public void setVisible(boolean b)

Shows or hides this component depending on the value of parameter b.

Overrides:

setVisible in class Component

Parameters:

b - if true, shows this component; otherwise, hides this component

Since:

JDK1.1

See Also:

Component.isVisible()

getMinimumSize

public Dimension getMinimumSize()

Description copied from class: Container

Returns the minimum size of this container.

Overrides:

getMinimumSize in class Container

Returns:

an instance of Dimension that represents the minimum size of this container.

See Also:

Container.getPreferredSize(), Container.getLayout(), LayoutManager.minimumLayoutSize(Container), Component.getMinimumSize()

getPreferredSize

public Dimension getPreferredSize()

Description copied from class: Container

Returns the preferred size of this container.

Overrides:

getPreferredSize in class Container

Returns:

an instance of Dimension that represents the preferred size of this container.

See Also:

Container.getMinimumSize(), Container.getLayout(), LayoutManager.preferredLayoutSize(Container), Component.getPreferredSize()

getMaximumSize

public Dimension getMaximumSize()

Description copied from class: Container

Returns the maximum size of this container.

Overrides:

getMaximumSize in class Container

See Also:

Container.getPreferredSize()

getAlignmentX

public float getAlignmentX()

Description copied from class: Container

Returns the alignment along the x axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Overrides:

getAlignmentX in class Container

getAlignmentY

public float getAlignmentY()

Description copied from class: Container

Returns the alignment along the y axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Overrides:

getAlignmentY in class Container

getFocusTraversalKeys

public Set getFocusTraversalKeys(int id)

Description copied from class: Container

Returns the Set of focus traversal keys for a given traversal operation for this Container. (See setFocusTraversalKeys for a full description of each key.)

If a Set of traversal keys has not been explicitly defined for this Container, then this Container's parent's Set is returned. If no Set has been explicitly defined for any of this Container's ancestors, then the current KeyboardFocusManager's default Set is returned.

Overrides:

getFocusTraversalKeys in class Container

Parameters:

id - one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS

Returns:

the Set of AWTKeyStrokes for the specified operation. The Set will be unmodifiable, and may be empty. null will never be returned.

See Also:

Container.setFocusTraversalKeys(int, java.util.Set), KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS