com.tensegrity.gui.swt.control.widgets
Class IntegerTextField

java.lang.Object
  org.eclipse.swt.widgets.Widget
      org.eclipse.swt.widgets.Control
          org.eclipse.swt.widgets.Scrollable
              org.eclipse.swt.widgets.Composite
                  com.tensegrity.gui.swt.control.widgets.TextField
                      com.tensegrity.gui.swt.control.widgets.IntegerTextField

All Implemented Interfaces:

org.eclipse.swt.graphics.Drawable

public class IntegerTextField

extends TextField

An IntegerTextField is an extension of a TextField which only handles integers. To decide which input is valid this class overwrites the isValid(char) and the isValid(String) methods.

Each registered InputChangedListener is notified on input changes.

Version:

$Id: IntegerTextField.java,v 1.6 2005/08/23 10:21:26 ArndHouben Exp $

Author:

Arnd Houben

Field Summary

Fields inherited from class org.eclipse.swt.widgets.Control

handle

Constructor Summary

IntegerTextField(org.eclipse.swt.widgets.Composite parent, int style, int initialValue)
Constructor which requires the initial input of the textfield

IntegerTextField(org.eclipse.swt.widgets.Composite parent, int style, java.lang.String initialValue)
Constructor which requires an initial value string for initializing the textfield

Method Summary

int	getIntValue() Returns the current integer value
protected boolean	isValid(char keyCode) Checks if the given character is valid in the sense of an implementing class.
protected boolean	isValid(java.lang.String input) Checks if the given string is valid in the sense of an implementing class.
void	setIntValue(int val) Sets the specified integer value.

Methods inherited from class com.tensegrity.gui.swt.control.widgets.TextField

addFocusListener, addInputChangedListener, addModifyListener, allowIsoControl, getCaretPosition, getText, removeFocusListener, removeInputChangedListener, removeModifyListener, setEnabled, setText, setTextLimit

Methods inherited from class org.eclipse.swt.widgets.Composite

checkSubclass, computeSize, getChildren, getLayout, getTabList, layout, layout, setFocus, setLayout, setTabList

Methods inherited from class org.eclipse.swt.widgets.Scrollable

computeTrim, getClientArea, getHorizontalBar, getVerticalBar

Methods inherited from class org.eclipse.swt.widgets.Control

addControlListener, addHelpListener, addKeyListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addPaintListener, addTraverseListener, computeSize, forceFocus, getAccessible, getBackground, getBorderWidth, getBounds, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getParent, getShell, getSize, getToolTipText, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, redraw, redraw, removeControlListener, removeHelpListener, removeKeyListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removePaintListener, removeTraverseListener, setBackground, setBounds, setBounds, setCapture, setCursor, setFont, setForeground, setLayoutData, setLocation, setLocation, setMenu, setParent, setRedraw, setSize, setSize, setToolTipText, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, update

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkWidget, dispose, getData, getData, getDisplay, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, setData, setData, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IntegerTextField

public IntegerTextField(org.eclipse.swt.widgets.Composite parent,
                        int style,
                        int initialValue)

Constructor which requires the initial input of the textfield

Parameters:

parent - Composite to add this IntegerTextField to

style - SWT style bits

initialValue - initial input value

IntegerTextField

public IntegerTextField(org.eclipse.swt.widgets.Composite parent,
                        int style,
                        java.lang.String initialValue)

Constructor which requires an initial value string for initializing the textfield

Parameters:

parent - Composite to add this IntegerTextField to

style - SWT style bits

initialValue - initial input value as String

Method Detail

setIntValue

public final void setIntValue(int val)

Sets the specified integer value.

Parameters:

val - an arbitrary integer value

getIntValue

public final int getIntValue()

Returns the current integer value

Returns:

current integer value

isValid

protected final boolean isValid(char keyCode)

Description copied from class: TextField

Checks if the given character is valid in the sense of an implementing class. This method is called after each key press. Invalid characters are not shown, i.e. if this method returns false, the last typed character is not displayed.

Note: by default iso control characters are allowed, i.e. backspace, cursor keys etc. If you do not want to support them you have to explicitly forbid them via allowIsoControl(false).

Specified by:

isValid in class TextField

Returns:

true if character is valid, false otherwise

isValid

protected final boolean isValid(java.lang.String input)

Description copied from class: TextField

Checks if the given string is valid in the sense of an implementing class. This method is called after the text input is finished. If this method returns false the input is not seen as to be completed.

Specified by:

isValid in class TextField

Parameters:

input - the current text content of the textfield.

Returns:

true if the string is valid, false otherwise