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Class ncsa.horizon.awt.SingleComponentPanel

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--ncsa.horizon.awt.SingleComponentPanel

Subclasses:

PanelButton

public class SingleComponentPanel

extends java.awt.Panel

a Panel that maintains a nice border around a single component.

This Panel is a nice container to maintain space between an enclosing Frame and the Component this Panel contains. When the Frame is resized, this Panel will resize its enclosed component to maintain the space.

This Panel is designed to hold only one Component. The Component to be enclosed can either be passed to the constructor or added afterward with the add(Component) method. If there are several components to be laid out, one should wrap them in a regular AWT Panel before enclosing them in this one. If add(Component) is called after a Component has already been added, the previous one is replaced. This Panel automatically sets the up the necessary layout (via initLayout()) upon construction; therefore, one should not call this Panel's setLayout() method. Doing so voids the features of this class and may produce undesired effects. Similarly, one should not call the add(String, Component) or add(Component, int) methods.

See Also:

Serialized Form

Field Summary

int	bgap
java.awt.Component	item the single component contained in this Panel
int	lgap
int	rgap
int	tgap

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

SingleComponentPanel()
construct the Panel with the single Component it will enclose to be added later.

SingleComponentPanel(int bottom, int left, int right, int top)
construct the Panel with a given size border.

SingleComponentPanel(java.awt.Component comp, int bottom, int left, int right, int top)
construct the Panel with a given size border and enclosing a single given Component.

SingleComponentPanel(java.awt.Component comp)
construct the Panel to enclose the single given Component

Method Summary

java.awt.Component	add(java.awt.Component comp)
void	initLayout() initialize the Layout.
void	setBounds(java.awt.Rectangle r)

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addNotify, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponentAt, getComponentAt, getComponent, getComponentCount, getComponents, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, paint, paramString, preferredSize, printComponents, print, processContainerEvent, processEvent, removeAll, remove, remove, removeContainerListener, removeNotify, setLayout, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paint, paramString, postEvent, preferredSize, prepareImage, prepareImage, printAll, print, processComponentEvent, processEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, update, validate

Methods inherited from class java.lang.Object

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

Field Detail

item

protected java.awt.Component item

the single component contained in this Panel

tgap

protected int tgap

bgap

protected int bgap

rgap

protected int rgap

lgap

protected int lgap

Constructor Detail

SingleComponentPanel

public SingleComponentPanel()

construct the Panel with the single Component it will enclose to be added later.

SingleComponentPanel

public SingleComponentPanel(int bottom,
                            int left,
                            int right,
                            int top)

construct the Panel with a given size border. (The single Component it will enclose should be added later.)

SingleComponentPanel

public SingleComponentPanel(java.awt.Component comp,
                            int bottom,
                            int left,
                            int right,
                            int top)

construct the Panel with a given size border and enclosing a single given Component.

SingleComponentPanel

public SingleComponentPanel(java.awt.Component comp)

construct the Panel to enclose the single given Component

Method Detail

initLayout

protected void initLayout()

initialize the Layout. This sets the LayoutManager and its parameters.

add

public java.awt.Component add(java.awt.Component comp)

Overrides:

add in class java.awt.Container

setBounds

public void setBounds(java.awt.Rectangle r)

Overrides:

setBounds in class java.awt.Component