AFLPgui
Class ButtonBar

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--AFLPgui.Bar
                          |
                          +--AFLPgui.ButtonBar

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class ButtonBar

extends Bar

This class extends the bar class and adds four buttons to a bar. The buttons have the standard icons for "new", "open", "save", and "print." However, the functionality must be added by another class. Objects can register themselves as ActionListeners by calling the sendActionEventsTo method. This class also provides a way to retrieve an image from a file.

See Also:

Serialized Form

Inner classes inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Inner classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent

Field Summary

protected static int	BUTTON_HEIGHT
protected static int	BUTTON_WIDTH
protected static int	HORZ_INSET
protected static int	HORZ_SPACE
protected static int	VERT_INSET

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

ButtonBar()
Create a new button bar with both top and bottom border lines.

ButtonBar(boolean drawTop, boolean drawBottom)
Create a new button bar with the specified top and bottom borders.

Method Summary

int	getFreeHorzPos() Gives the location of the first space not occupied by a button.
java.awt.Button	getNewButton() Gives the "new" button on the bar.
java.awt.Button	getOpenButton() Gives the "open" button on the bar.
java.awt.Button	getPrintButton() Gives the "print" button on the bar.
java.awt.Button	getSaveButton() Gives the "save" button on the bar.
static java.awt.Image	retrieveImage(java.lang.String filename) Get an image from the specified file.
void	sendActionEventsTo(java.awt.event.ActionListener target) Sets the specified target so that it recieves action events from the four buttons.

Methods inherited from class AFLPgui.Bar

hasBottomBorder, hasTopBorder, paint, setBorders

Methods inherited from class java.awt.Panel

addNotify, getAccessibleContext

Methods inherited from class java.awt.Container

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

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, 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, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

BUTTON_WIDTH

protected static int BUTTON_WIDTH

BUTTON_HEIGHT

protected static int BUTTON_HEIGHT

HORZ_INSET

protected static int HORZ_INSET

HORZ_SPACE

protected static int HORZ_SPACE

VERT_INSET

protected static int VERT_INSET

Constructor Detail

ButtonBar

public ButtonBar()

Create a new button bar with both top and bottom border lines.

ButtonBar

public ButtonBar(boolean drawTop,
                 boolean drawBottom)

Create a new button bar with the specified top and bottom borders.

Parameters:

drawTop - specifies if the top seperating line should be drawn. true for the line to show up.

drawBottom - specifies if the bottom line should be drawn.

Method Detail

getFreeHorzPos

public int getFreeHorzPos()

Gives the location of the first space not occupied by a button.

Returns:

the position of the right edge of the rightmost button.

retrieveImage

public static java.awt.Image retrieveImage(java.lang.String filename)

Get an image from the specified file. The image should be a GIF or PNG.

Parameters:

filename - the full name, including path, of the desired image.

Returns:

an image object, which will contain the picture once it has been loaded. Note: this method can return before the image is actually retrieved into the Image obect.

sendActionEventsTo

public void sendActionEventsTo(java.awt.event.ActionListener target)

Sets the specified target so that it recieves action events from the four buttons.

Parameters:

target - an object that wants to handle action events from the button.

getNewButton

public java.awt.Button getNewButton()

Gives the "new" button on the bar.

getOpenButton

public java.awt.Button getOpenButton()

Gives the "open" button on the bar.

getSaveButton

public java.awt.Button getSaveButton()

Gives the "save" button on the bar.

getPrintButton

public java.awt.Button getPrintButton()

Gives the "print" button on the bar.