charvax.swing

Class JTextField

java.lang.Object

charva.awt.Component

charvax.swing.JComponent

charvax.swing.text.JTextComponent

charvax.swing.JTextField

Direct Known Subclasses:

CapsTextField, JPasswordField

public class JTextField
extends JTextComponent

Support for public void setBounds( Rectangle bounds ) public void setBounds( int top_, int left_, int bottom_, int right_) public void setBounds(Point topleft_, Dimension size_)

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Vector	_actionListeners A list of ActionListeners registered for this component.
protected int	_columns
protected int	_offset Index (from the start of the string) of the character displayed in the left corner of the field.
protected java.lang.String	_padding A blank-filled string the same length as the JTextField.

Fields inherited from class charvax.swing.text.JTextComponent

_bold, _caretPosition, _document, _editable

Fields inherited from class charvax.swing.JComponent

_border

Fields inherited from class charva.awt.Component

_alignmentX, _alignmentY, _background, _cursesColor, _enabled, _focusListeners, _foreground, _keyListeners, _origin, _parent, _visible, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

Constructors

Constructor and Description
JTextField() Construct a text field.
JTextField(int length_) Use this constructor when you want to leave the text field empty but set its length.
JTextField(java.lang.String text_) Use this constructor when you want to initialize the value.
JTextField(java.lang.String text_, int length_) Use this constructor when you want to set both the initial value and the length.

Method Summary

Modifier and Type	Method and Description
void	addActionListener(ActionListener al_) Register an ActionListener object for this component.
void	debug(int level_)
void	draw() Called by this JTextField's parent container.
java.lang.String	getActionCommand() Get the action command
int	getColumns() Return the number of columns in the text field.
int	getHeight()
Dimension	getSize() Return the size of the text field.
int	getWidth()
boolean	isEditable() Returns the boolean flag indicating whether this TextComponent is editable or not.
Dimension	minimumSize() Called by the LayoutManager.
void	postActionEvent(ActionEvent ae_) Invoke all the ActionListener callbacks that may have been registered for this component.
protected void	processEvent(AWTEvent evt_) Process events.
void	processKeyEvent(KeyEvent ke_) Process KeyEvents that have been generated by this JTextField.
void	processMouseEvent(MouseEvent e_) Process a MouseEvent that was generated by clicking the mouse somewhere inside this JTextField.
void	requestFocus() This method should be invoked by all subclasses of Component which override this method; because this method generates the FOCUS_GAINED event when the component gains the keyboard focus.
void	setActionCommand(java.lang.String cmd_) Set the action command
void	setBounds(int top_, int left_, int bottom_, int right_)
void	setBounds(Point topleft_, Dimension size_)
void	setBounds(Rectangle bounds)
void	setColumns(int columns_) Sets the number of columns in this Textfield, and then invalidates the layout.
void	setEditable(boolean editable_) Sets whether this textfield can be edited.
void	setText(java.lang.String text_) Set the text that is presented by this JTextField.
java.lang.String	toString() Returns a String representation of this component.

Methods inherited from class charvax.swing.text.JTextComponent

getCaretPosition, getDocument, getText, setCaretPosition, setDocument, setFont

Methods inherited from class charvax.swing.JComponent

getBorder, getInsets, setBorder

Methods inherited from class charva.awt.Component

addFocusListener, addKeyListener, contains, contains, getAlignmentX, getAlignmentY, getAncestorWindow, getBackground, getBounds, getCursesColor, getForeground, getLocation, getLocationOnScreen, getName, getParent, hasFocus, hide, invalidate, isDisplayed, isEnabled, isFocusTraversable, isRecursivelyVisible, isTotallyObscured, isValid, isVisible, processFocusEvent, repaint, requestSync, setBackground, setEnabled, setForeground, setLocation, setLocation, setName, setParent, setVisible, show, validate, validateCursesColor

Methods inherited from class java.lang.Object

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

Field Detail

_columns

protected int _columns

_offset

protected int _offset

Index (from the start of the string) of the character displayed in the left corner of the field. This is always 0 if the string is shorter than the field.

_padding

protected java.lang.String _padding

A blank-filled string the same length as the JTextField.

_actionListeners

protected java.util.Vector _actionListeners

A list of ActionListeners registered for this component.

Constructor Detail

JTextField

public JTextField()

Construct a text field. The initial string is empty and the number of columns is 10.

JTextField

public JTextField(java.lang.String text_)

Use this constructor when you want to initialize the value.

JTextField

public JTextField(int length_)

Use this constructor when you want to leave the text field empty but set its length.

JTextField

public JTextField(java.lang.String text_,
                  int length_)

Use this constructor when you want to set both the initial value and the length.

Method Detail

setColumns

public void setColumns(int columns_)

Sets the number of columns in this Textfield, and then invalidates the layout.

setBounds

public void setBounds(Rectangle bounds)

Overrides:

setBounds in class Component

setBounds

public void setBounds(int top_,
                      int left_,
                      int bottom_,
                      int right_)

Overrides:

setBounds in class Component

setBounds

public void setBounds(Point topleft_,
                      Dimension size_)

Overrides:

setBounds in class Component

getColumns

public int getColumns()

Return the number of columns in the text field.

setActionCommand

public void setActionCommand(java.lang.String cmd_)

Set the action command

getActionCommand

public java.lang.String getActionCommand()

Get the action command

getSize

public Dimension getSize()

Return the size of the text field. Overrides the method in the Component superclass.

Specified by:

getSize in class Component

getWidth

public int getWidth()

Specified by:

getWidth in class Component

getHeight

public int getHeight()

Specified by:

getHeight in class Component

minimumSize

public Dimension minimumSize()

Called by the LayoutManager.

Specified by:

minimumSize in class Component

setEditable

public void setEditable(boolean editable_)

Sets whether this textfield can be edited.

Overrides:

setEditable in class JTextComponent

isEditable

public boolean isEditable()

Description copied from class: JTextComponent

Returns the boolean flag indicating whether this TextComponent is editable or not.

Overrides:

isEditable in class JTextComponent

draw

public void draw()

Called by this JTextField's parent container.

Overrides:

draw in class JComponent

processKeyEvent

public void processKeyEvent(KeyEvent ke_)

Process KeyEvents that have been generated by this JTextField.

Overrides:

processKeyEvent in class Component

processMouseEvent

public void processMouseEvent(MouseEvent e_)

Process a MouseEvent that was generated by clicking the mouse somewhere inside this JTextField. Clicking the mouse inside the JTextField moves the caret position to where the mouse was clicked.

Overrides:

processMouseEvent in class Component

setText

public void setText(java.lang.String text_)

Set the text that is presented by this JTextField. This method is thread-safe, although most Charva methods are not.

Overrides:

setText in class JTextComponent

processEvent

protected void processEvent(AWTEvent evt_)

Process events.

Overrides:

processEvent in class Component

postActionEvent

public void postActionEvent(ActionEvent ae_)

Invoke all the ActionListener callbacks that may have been registered for this component.

addActionListener

public void addActionListener(ActionListener al_)

Register an ActionListener object for this component.

requestFocus

public void requestFocus()

Description copied from class: Component

This method should be invoked by all subclasses of Component which override this method; because this method generates the FOCUS_GAINED event when the component gains the keyboard focus.

Overrides:

requestFocus in class Component

toString

public java.lang.String toString()

Returns a String representation of this component.

Overrides:

toString in class java.lang.Object

debug

public void debug(int level_)

Specified by:

debug in class Component