arlut.csd.JDataComponent
Class JfloatField

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.text.JTextComponent
                          |
                          +--javax.swing.JTextField
                                |
                                +--arlut.csd.JDataComponent.JentryField
                                      |
                                      +--arlut.csd.JDataComponent.JfloatField

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.event.ActionListener, java.util.EventListener, java.awt.event.FocusListener, java.awt.image.ImageObserver, java.awt.MenuContainer, javax.swing.Scrollable, java.io.Serializable, javax.swing.SwingConstants

public class JfloatField

extends JentryField

This class defines a GUI field component that is capable of handling Java doubles. The maximum and minimum bounds for the range of doubles that can be entered into this JfloatField can also be preset.

See Also:

Serialized Form

Field Summary

static java.lang.String	allowedChars
static int	DEFAULT_COLS
private boolean	limited
private double	maxSize
private double	minSize
private boolean	processingCallback
private java.lang.Double	storedValue

Fields inherited from class arlut.csd.JDataComponent.JentryField

allowCallback, debug, my_parent, notifier

Fields inherited from class javax.swing.JTextField

notifyAction

Fields inherited from class javax.swing.text.JTextComponent

DEFAULT_KEYMAP, FOCUS_ACCELERATOR_KEY

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

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 javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

JfloatField()
Constructor which uses default everything.

JfloatField(int width)
Constructor which uses takes a number of columns, and everything else default.

JfloatField(int columns, boolean iseditable, boolean islimited, double minsize, double maxsize)
Base constructor for JfloatField

JfloatField(int columns, boolean iseditable, boolean limited, double minsize, double maxsize, arlut.csd.JDataComponent.JsetValueCallback parent)
Constructor that allows for the creation of a JfloatField that knows about its parent and can invoke a callback method.

Method Summary

double	getMaxValue() returns the maximum value in the range of valid values for this JfloatField
double	getMinValue() returns the minimum value in the range of valid values for this JfloatField
java.lang.Double	getValue() returns the value of this JfloatField as an Integer object If this field is empty, will return null.
boolean	isAllowed(char c) returns true if is a valid numerical digit.
boolean	isLimited() returns true if there is a bound on the range of values that can be entered into this JfloatField
private void	reportError(java.lang.String errorString) This private helper method relays a descriptive error message to our callback interface.
int	sendCallback() overrides JentryField.sendCallback().
void	setLimited(boolean bool) Sets the limited/non-limited status of this JfloatField If setLimited is given a true value as a parameter, then certain bounds will be imposed on the range of possible values.
void	setMaxValue(double n) sets the maximum value in the range of possible values.
void	setMinValue(double n) sets the minimum value in the range of possible values.
void	setValue(double num) sets the value of this JfloatField to num This method does not trigger a callback to our container..
void	setValue(java.lang.Double num) sets the value of this JfloatField using an Double object.

Methods inherited from class arlut.csd.JDataComponent.JentryField

actionPerformed, focusGained, focusLost, getLength, getMaxStringSize, setCallback, setEnterHandler

Methods inherited from class javax.swing.JTextField

addActionListener, configurePropertiesFromAction, createActionPropertyChangeListener, createDefaultModel, fireActionPerformed, getAccessibleContext, getAction, getActionListeners, getActions, getColumns, getColumnWidth, getHorizontalAlignment, getHorizontalVisibility, getPreferredSize, getScrollOffset, getUIClassID, isValidateRoot, paramString, postActionEvent, removeActionListener, scrollRectToVisible, setAction, setActionCommand, setColumns, setDocument, setFont, setHorizontalAlignment, setScrollOffset

Methods inherited from class javax.swing.text.JTextComponent

addCaretListener, addInputMethodListener, addKeymap, copy, cut, fireCaretUpdate, getCaret, getCaretColor, getCaretListeners, getCaretPosition, getDisabledTextColor, getDocument, getDragEnabled, getFocusAccelerator, getHighlighter, getInputMethodRequests, getKeymap, getKeymap, getMargin, getNavigationFilter, getPreferredScrollableViewportSize, getScrollableBlockIncrement, getScrollableTracksViewportHeight, getScrollableTracksViewportWidth, getScrollableUnitIncrement, getSelectedText, getSelectedTextColor, getSelectionColor, getSelectionEnd, getSelectionStart, getText, getText, getToolTipText, getUI, isEditable, loadKeymap, modelToView, moveCaretPosition, paste, processInputMethodEvent, read, removeCaretListener, removeKeymap, removeNotify, replaceSelection, select, selectAll, setCaret, setCaretColor, setCaretPosition, setComponentOrientation, setDisabledTextColor, setDragEnabled, setEditable, setFocusAccelerator, setHighlighter, setKeymap, setMargin, setNavigationFilter, setSelectedTextColor, setSelectionColor, setSelectionEnd, setSelectionStart, setText, setUI, updateUI, viewToModel, write

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processMouseEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, 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

DEFAULT_COLS

public static int DEFAULT_COLS

allowedChars

public static java.lang.String allowedChars

storedValue

private java.lang.Double storedValue

limited

private boolean limited

processingCallback

private boolean processingCallback

maxSize

private double maxSize

minSize

private double minSize

Constructor Detail

JfloatField

public JfloatField(int columns,
                   boolean iseditable,
                   boolean islimited,
                   double minsize,
                   double maxsize)

Base constructor for JfloatField

Parameters:

columns - number of columns in the JfloatField

islimited - true if there is a restriction on the range of values

minsize - the minimum limit on the range of values

maxsize - the maximum limit on the range of values

JfloatField

public JfloatField(int width)

Constructor which uses takes a number of columns, and everything else default.

JfloatField

public JfloatField()

Constructor which uses default everything.

JfloatField

public JfloatField(int columns,
                   boolean iseditable,
                   boolean limited,
                   double minsize,
                   double maxsize,
                   arlut.csd.JDataComponent.JsetValueCallback parent)

Constructor that allows for the creation of a JfloatField that knows about its parent and can invoke a callback method.

Parameters:

columns - number of columns in the JfloatField

minsize - the minimum limit on the range of values

maxsize - the maximum limit on the range of values

parent - the container within which this JfloatField is contained (This container will implement an interface that will utilize the data contained within this JfloatField.)

Method Detail

isAllowed

public boolean isAllowed(char c)

returns true if is a valid numerical digit.

Overrides:

isAllowed in class JentryField

Parameters:

c - the character to check

getValue

public java.lang.Double getValue()
                          throws java.lang.NumberFormatException

returns the value of this JfloatField as an Integer object If this field is empty, will return null. If this field is not empty and has a non-numeric string, will throw a NumberFormatException.

java.lang.NumberFormatException

setValue

public void setValue(double num)

sets the value of this JfloatField to num This method does not trigger a callback to our container.. we only callback as a result of loss-of-focus brought on by the user.

Parameters:

num - the number to use

setValue

public void setValue(java.lang.Double num)

sets the value of this JfloatField using an Double object. This method does not trigger a callback to our container.. we only callback as a result of loss-of-focus brought on by the user.

Parameters:

num - the Double object to use

setLimited

public void setLimited(boolean bool)

Sets the limited/non-limited status of this JfloatField If setLimited is given a true value as a parameter, then certain bounds will be imposed on the range of possible values.

Parameters:

bool - true if a limit is to be set on the range of values

setMaxValue

public void setMaxValue(double n)

sets the maximum value in the range of possible values.

Parameters:

n - the number to use when setting the maximum value

setMinValue

public void setMinValue(double n)

sets the minimum value in the range of possible values.

Parameters:

n - the number to use when setting the minimum value

isLimited

public boolean isLimited()

returns true if there is a bound on the range of values that can be entered into this JfloatField

getMaxValue

public double getMaxValue()

returns the maximum value in the range of valid values for this JfloatField

getMinValue

public double getMinValue()

returns the minimum value in the range of valid values for this JfloatField

sendCallback

public int sendCallback()

overrides JentryField.sendCallback(). This is called when the float field loses focus. sendCallback is called when focus is lost, or when we are otherwise triggered.

Specified by:

sendCallback in class JentryField

reportError

private void reportError(java.lang.String errorString)

This private helper method relays a descriptive error message to our callback interface.