Focus
Apply focus to the entire row of the JTable
Section titled “Apply focus to the entire row of the JTable”
LineFocusTable
This displays the focus of a JTable as being on the entire row, rather than just a single cell.
Sets the background color when a JTextField has focus
Section titled “Sets the background color when a JTextField has focus”
FocusColor
To make it easier to see which JTextField is being edited, the background color of the focused JTextField is changed.
Display when JTextField has no focus and no text
Section titled “Display when JTextField has no focus and no text”
GhostText
If the JTextField does not have focus and the text is empty, its description will be displayed in a light color.
Displaying a watermark image in a JTextField
Section titled “Displaying a watermark image in a JTextField”
WatermarkInTextField
This sets the JTextField to display a watermark image when the text field is empty and the field does not have focus.
Move focus to the next row in the JTable using the Tab key
Section titled “Move focus to the next row in the JTable using the Tab key”
SelectNextRow
This sets the cell focus to move to the next row when the Tab key is pressed.
Specify the focus when a window is opened
Section titled “Specify the focus when a window is opened”
DefaultFocus
This specifies the component that will have focus by default when a window such as a JFrame or JDialog is opened.
JOptionPane default focus
Section titled “JOptionPane default focus”
OptionPaneDefaultFocus
This adds a component to the JOptionPane that will have focus by default.
Focus movement
Section titled “Focus movement”
Add arrow keys to FocusTraversalKeys to move focus
Section titled “Add arrow keys to FocusTraversalKeys to move focus”
FocusTraversalKeys
This setting allows you to move focus using the arrow keys in addition to the default Tab key.
Manipulating JTables from other components
Section titled “Manipulating JTables from other components”
SelectAllButton
Selecting all rows in a JTable or copying selected rows can be done from other components such as JButtons.
Clear GlobalFocus
Section titled “Clear GlobalFocus”
ClearGlobalFocusOwner
This clears GlobalFocus, returning the system to a state where there are no components with focus.
Make JPanel the root of the focus traversal cycle
Section titled “Make JPanel the root of the focus traversal cycle”
Move focus using the mnemonic set in the JLabel
Section titled “Move focus using the mnemonic set in the JLabel”
LabelForDisplayedMnemonic
A mnemonic is set for a JLabel, and focus is moved to the associated JTextField.
Add a JTextField to a non-editable JTextPane
Section titled “Add a JTextField to a non-editable JTextPane”
TextFieldOnReadOnlyTextPane
This adds a JTextField to a JTextPane that has been made blank and non-editable.
Focus shift when the value of a JTextField with InputVerifier set is invalid
Section titled “Focus shift when the value of a JTextField with InputVerifier set is invalid”
VerifyInputWhenFocusTarget
This tests the focus movement behavior when the value of a JTextField with InputVerifier set is not in the correct format.
Change the border when a JTree node gains focus
Section titled “Change the border when a JTree node gains focus”
DrawsTreeFocus
The border rendering when a JTree node is selected and focuses is changed using UIManager.
Maintaining the display of selected state using the Caret in JTextArea
Section titled “Maintaining the display of selected state using the Caret in JTextArea”
CaretSelectionHighlight
Set a Caret for JTextComponents such as JTextArea, so that the selected text is highlighted even when it does not have focus.
Configure the JTable so that the cell editor gains focus when editing a cell begins
Section titled “Configure the JTable so that the cell editor gains focus when editing a cell begins”
SurrendersFocusOnKeystroke
This setting allows you to toggle whether the cell editor gains focus when you start editing a JTable cell.
Change the JRRadioButton that receives focus first within the ButtonGroup
Section titled “Change the JRRadioButton that receives focus first within the ButtonGroup”
ButtonGroupFocusTraversalPolicy
This setting ensures that when the focus is moved using the Tab key, the focus will move to the currently selected JRadioButton within the ButtonGroup.
Test the focus navigation of a component with an InputVerifier set
Section titled “Test the focus navigation of a component with an InputVerifier set”
InputVerifierFocusOrder
This tests the validation of input and the order of focus movement events for components with InputVerifier configured.
Set the initial focus when JFileChooser is opened
Section titled “Set the initial focus when JFileChooser is opened”
FileChooserInitialFocus
When opening a JFileChooser that uses NimbusLookAndFeel, the initial focus is set to the JTextField used to display the file name.
Disable automatic focus downcycling in FocusTraversalPolicy
Section titled “Disable automatic focus downcycling in FocusTraversalPolicy”
ImplicitDownCycleTraversal
In the panel where you set SortingFocusTraversalPolicy, you implicitly configure it so that the focus does not move downcycle.
Use FocusTraversalPolicy to scroll to the component that has gained focus
Section titled “Use FocusTraversalPolicy to scroll to the component that has gained focus”
AutoScrollOnFocus
Use FocusTraversalPolicy to get the component that has focus and scroll until its entirety is visible.
Execute InputVerifier validation when switching tabs in JTabbedPane
Section titled “Execute InputVerifier validation when switching tabs in JTabbedPane”
TabbedPaneInputVerifier
When switching tabs in JTabbedPane, the InputVerifier set for the tab component is executed, and if the input is invalid during validation, the tab switch is canceled.
Configure the behavior when focus is lost from a JFormattedTextField
Section titled “Configure the behavior when focus is lost from a JFormattedTextField”
FocusLostBehavior
Set and test the action to be performed when focus is lost from the JFormattedTextField.
Get all JPopupMenus using MenuSelectionManager
Section titled “Get all JPopupMenus using MenuSelectionManager”
GetAllPopupMenus
The MenuSelectionManager retrieves all JPopupMenus, and you can toggle them to hide at any time.
When a JTextArea receives focus, its height will automatically expand
Section titled “When a JTextArea receives focus, its height will automatically expand”
ExpandingTextArea
When a JTextArea receives focus, its height automatically expands; when it loses focus, it shrinks.
Move the focus to the target JTextField before opening JPopupMenu
Section titled “Move the focus to the target JTextField before opening JPopupMenu”
FocusBeforePopup
When opening a JPopupMenu set in a JTextField or similar by right-clicking with the mouse, move the focus to it and select all the text.
Hide the FocusBorder of the JSlider
Section titled “Hide the FocusBorder of the JSlider”
SliderFocusBorder
In a JSlider that uses WindowsLookAndFeel, set the dotted FocusBorder to be hidden.
Change the target of the JComboBox’s FocusBorder from the internal items to the JComboBox itself
Section titled “Change the target of the JComboBox’s FocusBorder from the internal items to the JComboBox itself”
ComboBoxFocusBorder
This method hides the dotted FocusBorder applied to internal items in a JComboBox using WindowsLookAndFeel, and instead displays a solid FocusBorder on the JComboBox itself.
Enable tab key focus movement within the JTable cell editor
Section titled “Enable tab key focus movement within the JTable cell editor”
CellEditorFocusCycle
This setting allows you to move focus within the cell editor using the Tab key when a JTable is being edited.
Changing the drawing range of selection highlights in JEditorPane
Section titled “Changing the drawing range of selection highlights in JEditorPane”
WholeLineHighlightPainter
This modifies the Caret of JEditorPane so that selection highlighting is displayed even on paragraphs containing only line breaks.
Change the inner margin of focus drawing using dotted lines for JButtons and similar elements
Section titled “Change the inner margin of focus drawing using dotted lines for JButtons and similar elements”
FocusDashedRectGap
This modifies the inner margin of the focus rectangle drawn by a dotted line in a JButton that uses WindowsLookAndFeel or similar effects.
Set DefaultButton to the JButton that has focus
Section titled “Set DefaultButton to the JButton that has focus”
DefaultButtonFollowsFocus
This setting configures a JButton that is not the DefaultButton to behave as the DefaultButton when it has focus.
When a JLabel is clicked, focus is moved to the component assigned to it
Section titled “When a JLabel is clicked, focus is moved to the component assigned to it”
LabelForRequestFocus
When the JLabel is clicked with the mouse, the focus is moved to the component assigned to this label.
When the JTextField gains focus, the top right and left edges of the border are drawn sequentially
Section titled “When the JTextField gains focus, the top right and left edges of the border are drawn sequentially”
FocusBorderAnimation
When a JTextField gains keyboard focus, it starts a border animation that draws straight lines along its top right and left edges in sequence.
Place focusable components within the JWindow
Section titled “Place focusable components within the JWindow”
JWindowFocus
We will run tests that place focusable components in JWindow, plain JFrame, JPopupMenu, etc.
Move focus to the tab component that has become visible through tab selection in JTabbedPane
Section titled “Move focus to the tab component that has become visible through tab selection in JTabbedPane”
RequestFocusForVisibleComponent
This setting ensures that when a JTabbedPane tab is selected with a left mouse press, the focus moves to the visible tab component.
Change the text selection highlight color depending on whether the JFrame is active
Section titled “Change the text selection highlight color depending on whether the JFrame is active”
ActiveWindowSelectionHighlight
This code changes the background color of the text selection highlight in its child JTextComponent depending on whether the JFrame is active.
Change the focus border of a JTabbedPane tab to an underline when a tab is selected
Section titled “Change the focus border of a JTabbedPane tab to an underline when a tab is selected”
UnderlineTabFocusIndicator
This changes the focus border of a JTabbedPane tab when it is selected from a dotted border to an underline.
Display the focus border of the previously selected tab in JTabbedPane as a history
Section titled “Display the focus border of the previously selected tab in JTabbedPane as a history”
PreviouslySelectedTabColor
This changes the focus border color of the currently selected tab and the tab that was selected immediately before it in JTabbedPane.
If the focus movement to the JComboBox is rejected by InputVerifier validation, cancel the display of the dropdown list
Section titled “If the focus movement to the JComboBox is rejected by InputVerifier validation, cancel the display of the dropdown list”
DisableComboPopupByVerifier
If a mouse click to a JComboBox is rejected by an InputVerifier set in another component, the display of that dropdown list will be canceled.
Separate the selection tab and focus tab in JTabbedPane
Section titled “Separate the selection tab and focus tab in JTabbedPane”
TabbedPaneSelectionFollowsFocus
This setting allows you to switch between matching the selected tab and the focused tab when switching tabs using keyboard input in JTabbedPane, or treating them separately.
Set a border for a JTextField that changes its border color depending on whether it has focus or not
Section titled “Set a border for a JTextField that changes its border color depending on whether it has focus or not”
FocusBorder
This sets a border that changes the color of the border around the JTextField and highlights it when it receives focus.
Sets the component’s focus to the order in which it was added to the Container
Section titled “Sets the component’s focus to the order in which it was added to the Container”
ContainerOrderFocusTraversalPolicy
This sets a ContainerOrderFocusTraversalPolicy that cycles the focus movement of components according to the order in which they were added to the parent Container.