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Class java.awt.swing.JTextField

java.lang.Object
    |
    +----java.awt.Component
            |
            +----java.awt.Container
                    |
                    +----java.awt.swing.JComponent
                            |
                            +----java.awt.swing.text.JTextComponent
                                    |
                                    +----java.awt.swing.JTextField

public class JTextField

extends JTextComponent

notifyAction

Name of the action to send notification that the contents of the field have been accepted.

JTextField()

Constructs a new TextField.

JTextField(Document, String, int)

Constructs a new JTextField that uses the given text storage model and the given number of columns.

JTextField(int)

Constructs a new empty TextField with the specified number of columns.

JTextField(String)

Constructs a new TextField initialized with the specified text.

JTextField(String, int)

Constructs a new TextField initialized with the specified text and columns.

addActionListener(ActionListener)

Adds the specified action listener to receive action events from this textfield.

addMouseListener(MouseListener)

Adds a mouse listener.

addMouseMotionListener(MouseMotionListener)

Adds a mouse motion listener.

createDefaultModel()

Creates the default implementation of the model to be used at construction if one isn't explicitly given.

createMouseListener()

Creates a mouse listener that listens to mouse events, shifting the event's x,y positions to the scrolled view translation, and refires them to any registered mouse listeners.

createMouseMotionListener()

Creates a mouse motion listener that listens to mouse events, shifting the event's x,y positions to the scrolled view translation, and refires them to any registered mouse listeners.

fireActionPerformed()

Notifies all listeners that have registered interest for notification on this event type.

getActions()

Fetches the command list for the editor.

getColumns()

Returns the number of columns in this TextField.

getColumnWidth()

Gets the column width.

getMinimumSize()

Returns the minimum size Dimensions needed for this TextField.

getPreferredSize()

Returns the preferred size Dimensions needed for this TextField.

getScrollOffset()

Gets the scroll offset.

getUIClassID()

Gets the class ID for a UI.

paint(Graphics)

Paints the component, translating the graphics by the scrolled amount

paramString()

Returns the String of parameters for this JTextField.

postActionEvent()

Processes action events occurring on this textfield by dispatching them to any registered ActionListener objects.

removeActionListener(ActionListener)

Removes the specified action listener so that it no longer receives action events from this textfield.

removeMouseListener(MouseListener)

Removes a mouse listener.

removeMouseMotionListener(MouseMotionListener)

Removes a mouse motion listener.

repaint(long, int, int, int, int)

Repaints the component, shifting by the scrolled amount

scrollRectToVisible(Rectangle)

Scrolls the field left or right.

setColumns(int)

Sets the number of columns in this TextField.

setFont(Font)

Sets the current font.

setScrollOffset(int)

Sets the scroll offset.

public static final String notifyAction

Name of the action to send notification that the contents of the field have been accepted. Typically this is bound to a carriage-return.

public JTextField()

Constructs a new TextField.

public JTextField(String text)

Constructs a new TextField initialized with the specified text.

Parameters:

text - the text to be displayed

public JTextField(int columns)

Constructs a new empty TextField with the specified number of columns.

Parameters:

columns - the number of columns

public JTextField(String text,
                  int columns)

Constructs a new TextField initialized with the specified text and columns.

Parameters:

text - the text to be displayed

columns - the number of columns

public JTextField(Document doc,
                  String text,
                  int columns)

Constructs a new JTextField that uses the given text storage model and the given number of columns. This is the constructor through which the other constructors feed.

Parameters:

doc - the text storage to use

text - the initial string to display

columns - the number of columns to use to calculate the preferred width. If columns is set to zero, the preferred width will be whatever naturally results from the component implementation.

public String getUIClassID()

Gets the class ID for a UI.

Returns:

the ID

Overrides:

getUIClassID in class JComponent

See Also:

getUIClassID, getUI

protected Document createDefaultModel()

Creates the default implementation of the model to be used at construction if one isn't explicitly given.

Returns:

the default model implementation

public int getColumns()

Returns the number of columns in this TextField.

Returns:

the number of columns

public void setColumns(int columns)

Sets the number of columns in this TextField.

Parameters:

columns - the number of columns

Throws: IllegalArgumentException

if columns is less than 0

protected int getColumnWidth()

Gets the column width. The meaning of what a column is can be considered a fairly weak notion for some fonts. This method is used to define the width of a column. By default this is defined to be the width of the character m for the font used. This method can be redefined to be some alternative amount

Returns:

the column width

public Dimension getPreferredSize()

Returns the preferred size Dimensions needed for this TextField. If a non-zero number of columns has been set, the width is set to the columns multiplied by the column width.

Returns:

the dimensions

Overrides:

getPreferredSize in class JComponent

public Dimension getMinimumSize()

Returns the minimum size Dimensions needed for this TextField. This defaults to the preferred size.

Returns:

the dimensions

Overrides:

getMinimumSize in class JComponent

public void setFont(Font f)

Sets the current font. This removes cached row height and column width so the new font will be reflected.

Parameters:

f - the new font

Overrides:

setFont in class Component

public void addActionListener(ActionListener l)

Adds the specified action listener to receive action events from this textfield.

Parameters:

l - the action listener

public void removeActionListener(ActionListener l)

Removes the specified action listener so that it no longer receives action events from this textfield.

Parameters:

l - the action listener

protected void fireActionPerformed()

Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created using the parameters passed into the fire method.

See Also:

EventListenerList

public Action[] getActions()

Fetches the command list for the editor. This is the list of commands supported by the plugged-in UI augmented by the collection of commands that the editor itself supports. These are useful for binding to events, such as in a keymap.

Returns:

the command list

Overrides:

getActions in class JTextComponent

public void postActionEvent()

Processes action events occurring on this textfield by dispatching them to any registered ActionListener objects. This is normally called by the controller registered with textfield.

protected String paramString()

Returns the String of parameters for this JTextField.

Returns:

the string of parameters

Overrides:

paramString in class Container

public int getScrollOffset()

Gets the scroll offset.

Returns:

the offset

public void setScrollOffset(int scrollOffset)

Sets the scroll offset.

Parameters:

scrollOffset - the offset

public void scrollRectToVisible(Rectangle r)

Scrolls the field left or right.

Parameters:

r - the region to scroll

Overrides:

scrollRectToVisible in class JComponent

public void repaint(long tm,
                    int x,
                    int y,
                    int width,
                    int height)

Repaints the component, shifting by the scrolled amount

Parameters:

tm - ???

x - the X coordinate

y - the Y coordinate

width - the width

height - the height

Overrides:

repaint in class JComponent

public void paint(Graphics g)

Paints the component, translating the graphics by the scrolled amount

Parameters:

g - the graphics context

Overrides:

paint in class JComponent

protected MouseListener createMouseListener()

Creates a mouse listener that listens to mouse events, shifting the event's x,y positions to the scrolled view translation, and refires them to any registered mouse listeners.

Returns:

the listener

protected MouseMotionListener createMouseMotionListener()

Creates a mouse motion listener that listens to mouse events, shifting the event's x,y positions to the scrolled view translation, and refires them to any registered mouse listeners.

Returns:

the listener

public void addMouseListener(MouseListener l)

Adds a mouse listener.

Parameters:

l - the listener

Overrides:

addMouseListener in class Component

public void addMouseMotionListener(MouseMotionListener l)

Adds a mouse motion listener.

Parameters:

l - the listener

Overrides:

addMouseMotionListener in class Component

public void removeMouseListener(MouseListener l)

Removes a mouse listener.

Parameters:

l - the listener

Overrides:

removeMouseListener in class Component

public void removeMouseMotionListener(MouseMotionListener l)

Removes a mouse motion listener.

Parameters:

l - the listener

Overrides:

removeMouseMotionListener in class Component

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