- java.lang.Object
-
- java.awt.Component
-
- java.awt.Container
-
- javax.swing.JComponent
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- javax.swing.text.JTextComponent
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- javax.swing.JTextField
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- All Implemented Interfaces:
- ImageObserver, MenuContainer, Serializable, Accessible, Scrollable, SwingConstants
- Direct Known Subclasses:
- DefaultTreeCellEditor.DefaultTextField, JFormattedTextField, JPasswordField
public class JTextField extends JTextComponent implements SwingConstants
JTextField
is a lightweight component that allows the editing of a single line of text. For information on and examples of using text fields, see How to Use Text Fields in The Java Tutorial.JTextField
is intended to be source-compatible withjava.awt.TextField
where it is reasonable to do so. This component has capabilities not found in thejava.awt.TextField
class. The superclass should be consulted for additional capabilities.JTextField
has a method to establish the string used as the command string for the action event that gets fired. Thejava.awt.TextField
used the text of the field as the command string for theActionEvent
.JTextField
will use the command string set with thesetActionCommand
method if notnull
, otherwise it will use the text of the field as a compatibility withjava.awt.TextField
.The method
setEchoChar
andgetEchoChar
are not provided directly to avoid a new implementation of a pluggable look-and-feel inadvertently exposing password characters. To provide password-like services a separate classJPasswordField
extendsJTextField
to provide this service with an independently pluggable look-and-feel.The
java.awt.TextField
could be monitored for changes by adding aTextListener
forTextEvent
's. In theJTextComponent
based components, changes are broadcasted from the model via aDocumentEvent
toDocumentListeners
. TheDocumentEvent
gives the location of the change and the kind of change if desired. The code fragment might look something like:DocumentListener myListener = ??; JTextField myArea = ??; myArea.getDocument().addDocumentListener(myListener);
The horizontal alignment of
JTextField
can be set to be left justified, leading justified, centered, right justified or trailing justified. Right/trailing justification is useful if the required size of the field text is smaller than the size allocated to it. This is determined by thesetHorizontalAlignment
andgetHorizontalAlignment
methods. The default is to be leading justified.How the text field consumes VK_ENTER events depends on whether the text field has any action listeners. If so, then VK_ENTER results in the listeners getting an ActionEvent, and the VK_ENTER event is consumed. This is compatible with how AWT text fields handle VK_ENTER events. If the text field has no action listeners, then as of v 1.3 the VK_ENTER event is not consumed. Instead, the bindings of ancestor components are processed, which enables the default button feature of JFC/Swing to work.
Customized fields can easily be created by extending the model and changing the default model provided. For example, the following piece of code will create a field that holds only upper case characters. It will work even if text is pasted into from the clipboard or it is altered via programmatic changes.
public class UpperCaseField extends JTextField { public UpperCaseField(int cols) { super(cols); } protected Document createDefaultModel() { return new UpperCaseDocument(); } static class UpperCaseDocument extends PlainDocument { public void insertString(int offs, String str, AttributeSet a) throws BadLocationException { if (str == null) { return; } char[] upper = str.toCharArray(); for (int i = 0; i < upper.length; i++) { upper[i] = Character.toUpperCase(upper[i]); } super.insertString(offs, new String(upper), a); } } }
Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the
java.beans
package. Please seeXMLEncoder
.
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Nested Class Summary
Nested Classes Modifier and Type Class and Description protected class
JTextField.AccessibleJTextField
This class implements accessibility support for theJTextField
class.-
Nested classes/interfaces inherited from class javax.swing.text.JTextComponent
JTextComponent.AccessibleJTextComponent, JTextComponent.DropLocation, JTextComponent.KeyBinding
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Nested classes/interfaces inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent
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Nested classes/interfaces inherited from class java.awt.Container
Container.AccessibleAWTContainer
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Nested classes/interfaces inherited from class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
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Field Summary
Fields Modifier and Type Field and Description static String
notifyAction
Name of the action to send notification that the contents of the field have been accepted.-
Fields inherited from class javax.swing.text.JTextComponent
DEFAULT_KEYMAP, FOCUS_ACCELERATOR_KEY
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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
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Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
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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
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Constructor Summary
Constructors Constructor and Description JTextField()
Constructs a newTextField
.JTextField(Document doc, String text, int columns)
Constructs a newJTextField
that uses the given text storage model and the given number of columns.JTextField(int columns)
Constructs a new emptyTextField
with the specified number of columns.JTextField(String text)
Constructs a newTextField
initialized with the specified text.JTextField(String text, int columns)
Constructs a newTextField
initialized with the specified text and columns.
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Method Summary
Methods Modifier and Type Method and Description protected void
actionPropertyChanged(Action action, String propertyName)
Updates the textfield's state in response to property changes in associated action.void
addActionListener(ActionListener l)
Adds the specified action listener to receive action events from this textfield.protected void
configurePropertiesFromAction(Action a)
Sets the properties on this textfield to match those in the specifiedAction
.protected PropertyChangeListener
createActionPropertyChangeListener(Action a)
Creates and returns aPropertyChangeListener
that is responsible for listening for changes from the specifiedAction
and updating the appropriate properties.protected Document
createDefaultModel()
Creates the default implementation of the model to be used at construction if one isn't explicitly given.protected void
fireActionPerformed()
Notifies all listeners that have registered interest for notification on this event type.AccessibleContext
getAccessibleContext()
Gets theAccessibleContext
associated with thisJTextField
.Action
getAction()
Returns the currently setAction
for thisActionEvent
source, ornull
if noAction
is set.ActionListener[]
getActionListeners()
Returns an array of all theActionListener
s added to this JTextField with addActionListener().Action[]
getActions()
Fetches the command list for the editor.int
getColumns()
Returns the number of columns in thisTextField
.protected int
getColumnWidth()
Returns the column width.int
getHorizontalAlignment()
Returns the horizontal alignment of the text.BoundedRangeModel
getHorizontalVisibility()
Gets the visibility of the text field.Dimension
getPreferredSize()
Returns the preferred sizeDimensions
needed for thisTextField
.int
getScrollOffset()
Gets the scroll offset, in pixels.String
getUIClassID()
Gets the class ID for a UI.boolean
isValidateRoot()
Calls torevalidate
that come from within the textfield itself will be handled by validating the textfield, unless the textfield is contained within aJViewport
, in which case this returns false.protected String
paramString()
Returns a string representation of thisJTextField
.void
postActionEvent()
Processes action events occurring on this textfield by dispatching them to any registeredActionListener
objects.void
removeActionListener(ActionListener l)
Removes the specified action listener so that it no longer receives action events from this textfield.void
scrollRectToVisible(Rectangle r)
Scrolls the field left or right.void
setAction(Action a)
Sets theAction
for theActionEvent
source.void
setActionCommand(String command)
Sets the command string used for action events.void
setColumns(int columns)
Sets the number of columns in thisTextField
, and then invalidate the layout.void
setDocument(Document doc)
Associates the editor with a text document.void
setFont(Font f)
Sets the current font.void
setHorizontalAlignment(int alignment)
Sets the horizontal alignment of the text.void
setScrollOffset(int scrollOffset)
Sets the scroll offset, in pixels.-
Methods inherited from class javax.swing.text.JTextComponent
addCaretListener, addInputMethodListener, addKeymap, copy, cut, fireCaretUpdate, getCaret, getCaretColor, getCaretListeners, getCaretPosition, getDisabledTextColor, getDocument, getDragEnabled, getDropLocation, getDropMode, getFocusAccelerator, getHighlighter, getInputMethodRequests, getKeymap, getKeymap, getMargin, getNavigationFilter, getPreferredScrollableViewportSize, getPrintable, getScrollableBlockIncrement, getScrollableTracksViewportHeight, getScrollableTracksViewportWidth, getScrollableUnitIncrement, getSelectedText, getSelectedTextColor, getSelectionColor, getSelectionEnd, getSelectionStart, getText, getText, getToolTipText, getUI, isEditable, loadKeymap, modelToView, moveCaretPosition, paste, print, print, print, processInputMethodEvent, read, removeCaretListener, removeKeymap, removeNotify, replaceSelection, restoreComposedText, saveComposedText, select, selectAll, setCaret, setCaretColor, setCaretPosition, setComponentOrientation, setDisabledTextColor, setDragEnabled, setDropMode, setEditable, setFocusAccelerator, setHighlighter, setKeymap, setMargin, setNavigationFilter, setSelectedTextColor, setSelectionColor, setSelectionEnd, setSelectionStart, setText, setUI, updateUI, viewToModel, write
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Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
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Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree
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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, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, 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, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Field Detail
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notifyAction
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.- See Also:
- Constant Field Values
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Constructor Detail
-
JTextField
public JTextField()
Constructs a newTextField
. A default model is created, the initial string isnull
, and the number of columns is set to 0.
-
JTextField
public JTextField(String text)
Constructs a newTextField
initialized with the specified text. A default model is created and the number of columns is 0.- Parameters:
text
- the text to be displayed, ornull
-
JTextField
public JTextField(int columns)
Constructs a new emptyTextField
with the specified number of columns. A default model is created and the initial string is set tonull
.- Parameters:
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
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JTextField
public JTextField(String text, int columns)
Constructs a newTextField
initialized with the specified text and columns. A default model is created.- Parameters:
text
- the text to be displayed, ornull
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
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JTextField
public JTextField(Document doc, String text, int columns)
Constructs a newJTextField
that uses the given text storage model and the given number of columns. This is the constructor through which the other constructors feed. If the document isnull
, a default model is created.- Parameters:
doc
- the text storage to use; if this isnull
, a default will be provided by calling thecreateDefaultModel
methodtext
- the initial string to display, ornull
columns
- the number of columns to use to calculate the preferred width >= 0; ifcolumns
is set to zero, the preferred width will be whatever naturally results from the component implementation- Throws:
IllegalArgumentException
- ifcolumns
< 0
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Method Detail
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getUIClassID
public String getUIClassID()
Gets the class ID for a UI.- Overrides:
getUIClassID
in classJComponent
- Returns:
- the string "TextFieldUI"
- See Also:
JComponent.getUIClassID()
,UIDefaults.getUI(javax.swing.JComponent)
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setDocument
public void setDocument(Document doc)
Associates the editor with a text document. The currently registered factory is used to build a view for the document, which gets displayed by the editor after revalidation. A PropertyChange event ("document") is propagated to each listener.- Overrides:
setDocument
in classJTextComponent
- Parameters:
doc
- the document to display/edit- See Also:
JTextComponent.getDocument()
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isValidateRoot
public boolean isValidateRoot()
Calls torevalidate
that come from within the textfield itself will be handled by validating the textfield, unless the textfield is contained within aJViewport
, in which case this returns false.- Overrides:
isValidateRoot
in classJComponent
- Returns:
- if the parent of this textfield is a
JViewPort
return false, otherwise return true - See Also:
JComponent.revalidate()
,JComponent.isValidateRoot()
,Container.isValidateRoot()
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getHorizontalAlignment
public int getHorizontalAlignment()
Returns the horizontal alignment of the text. Valid keys are:JTextField.LEFT
JTextField.CENTER
JTextField.RIGHT
JTextField.LEADING
JTextField.TRAILING
- Returns:
- the horizontal alignment
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setHorizontalAlignment
public void setHorizontalAlignment(int alignment)
Sets the horizontal alignment of the text. Valid keys are:JTextField.LEFT
JTextField.CENTER
JTextField.RIGHT
JTextField.LEADING
JTextField.TRAILING
invalidate
andrepaint
are called when the alignment is set, and aPropertyChange
event ("horizontalAlignment") is fired.- Parameters:
alignment
- the alignment- Throws:
IllegalArgumentException
- ifalignment
is not a valid key
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createDefaultModel
protected Document createDefaultModel()
Creates the default implementation of the model to be used at construction if one isn't explicitly given. An instance ofPlainDocument
is returned.- Returns:
- the default model implementation
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getColumns
public int getColumns()
Returns the number of columns in thisTextField
.- Returns:
- the number of columns >= 0
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setColumns
public void setColumns(int columns)
Sets the number of columns in thisTextField
, and then invalidate the layout.- Parameters:
columns
- the number of columns >= 0- Throws:
IllegalArgumentException
- ifcolumns
is less than 0
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getColumnWidth
protected int getColumnWidth()
Returns 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 >= 1
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getPreferredSize
public Dimension getPreferredSize()
Returns the preferred sizeDimensions
needed for thisTextField
. If a non-zero number of columns has been set, the width is set to the columns multiplied by the column width.- Overrides:
getPreferredSize
in classJComponent
- Returns:
- the dimension of this textfield
- See Also:
JComponent.setPreferredSize(java.awt.Dimension)
,ComponentUI
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setFont
public void setFont(Font f)
Sets the current font. This removes cached row height and column width so the new font will be reflected.revalidate
is called after setting the font.- Overrides:
setFont
in classJComponent
- Parameters:
f
- the new font- See Also:
Component.getFont()
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addActionListener
public void addActionListener(ActionListener l)
Adds the specified action listener to receive action events from this textfield.- Parameters:
l
- the action listener to be added
-
removeActionListener
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 to be removed
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getActionListeners
public ActionListener[] getActionListeners()
Returns an array of all theActionListener
s added to this JTextField with addActionListener().- Returns:
- all of the
ActionListener
s added or an empty array if no listeners have been added - Since:
- 1.4
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fireActionPerformed
protected void fireActionPerformed()
Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created. The listener list is processed in last to first order.- See Also:
EventListenerList
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setActionCommand
public void setActionCommand(String command)
Sets the command string used for action events.- Parameters:
command
- the command string
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setAction
public void setAction(Action a)
Sets theAction
for theActionEvent
source. The newAction
replaces any previously setAction
but does not affectActionListeners
independently added withaddActionListener
. If theAction
is already a registeredActionListener
for theActionEvent
source, it is not re-registered.Setting the
Action
results in immediately changing all the properties described in Swing Components SupportingAction
. Subsequently, the textfield's properties are automatically updated as theAction
's properties change.This method uses three other methods to set and help track the
Action
's property values. It uses theconfigurePropertiesFromAction
method to immediately change the textfield's properties. To track changes in theAction
's property values, this method registers thePropertyChangeListener
returned bycreateActionPropertyChangeListener
. The defaultPropertyChangeListener
invokes theactionPropertyChanged
method when a property in theAction
changes.- Parameters:
a
- theAction
for theJTextField
, ornull
- Since:
- 1.3
- See Also:
Action
,getAction()
,configurePropertiesFromAction(javax.swing.Action)
,createActionPropertyChangeListener(javax.swing.Action)
,actionPropertyChanged(javax.swing.Action, java.lang.String)
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getAction
public Action getAction()
Returns the currently setAction
for thisActionEvent
source, ornull
if noAction
is set.- Returns:
- the
Action
for thisActionEvent
source, ornull
- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
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configurePropertiesFromAction
protected void configurePropertiesFromAction(Action a)
Sets the properties on this textfield to match those in the specifiedAction
. Refer to Swing Components SupportingAction
for more details as to which properties this sets.- Parameters:
a
- theAction
from which to get the properties, ornull
- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
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actionPropertyChanged
protected void actionPropertyChanged(Action action, String propertyName)
Updates the textfield's state in response to property changes in associated action. This method is invoked from thePropertyChangeListener
returned fromcreateActionPropertyChangeListener
. Subclasses do not normally need to invoke this. Subclasses that support additionalAction
properties should override this andconfigurePropertiesFromAction
.Refer to the table at Swing Components Supporting
Action
for a list of the properties this method sets.- Parameters:
action
- theAction
associated with this textfieldpropertyName
- the name of the property that changed- Since:
- 1.6
- See Also:
Action
,configurePropertiesFromAction(javax.swing.Action)
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createActionPropertyChangeListener
protected PropertyChangeListener createActionPropertyChangeListener(Action a)
Creates and returns aPropertyChangeListener
that is responsible for listening for changes from the specifiedAction
and updating the appropriate properties.Warning: If you subclass this do not create an anonymous inner class. If you do the lifetime of the textfield will be tied to that of the
Action
.- Parameters:
a
- the textfield's action- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
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getActions
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.- Overrides:
getActions
in classJTextComponent
- Returns:
- the command list
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postActionEvent
public void postActionEvent()
Processes action events occurring on this textfield by dispatching them to any registeredActionListener
objects. This is normally called by the controller registered with textfield.
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getHorizontalVisibility
public BoundedRangeModel getHorizontalVisibility()
Gets the visibility of the text field. This can be adjusted to change the location of the visible area if the size of the field is greater than the area that was allocated to the field.The fields look-and-feel implementation manages the values of the minimum, maximum, and extent properties on the
BoundedRangeModel
.- Returns:
- the visibility
- See Also:
BoundedRangeModel
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getScrollOffset
public int getScrollOffset()
Gets the scroll offset, in pixels.- Returns:
- the offset >= 0
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setScrollOffset
public void setScrollOffset(int scrollOffset)
Sets the scroll offset, in pixels.- Parameters:
scrollOffset
- the offset >= 0
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scrollRectToVisible
public void scrollRectToVisible(Rectangle r)
Scrolls the field left or right.- Overrides:
scrollRectToVisible
in classJComponent
- Parameters:
r
- the region to scroll- See Also:
JViewport
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paramString
protected String paramString()
Returns a string representation of thisJTextField
. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull
.- Overrides:
paramString
in classJTextComponent
- Returns:
- a string representation of this
JTextField
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getAccessibleContext
public AccessibleContext getAccessibleContext()
Gets theAccessibleContext
associated with thisJTextField
. ForJTextFields
, theAccessibleContext
takes the form of anAccessibleJTextField
. A newAccessibleJTextField
instance is created if necessary.- Specified by:
getAccessibleContext
in interfaceAccessible
- Overrides:
getAccessibleContext
in classJTextComponent
- Returns:
- an
AccessibleJTextField
that serves as theAccessibleContext
of thisJTextField
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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
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