Constructor and Description |
---|
WindowUtils() |
Modifier and Type | Method and Description |
---|---|
static WindowFocusListener |
createAndInstallRepaintWindowFocusListener(Window window)
Deprecated.
use the more targeted
installJComponentRepainterOnWindowFocusChanged(JComponent)
method. |
static void |
installJComponentRepainterOnWindowFocusChanged(JComponent component)
Installs a listener on the given
JComponent 's parent
Window that repaints the given component when the parent window's
focused state changes. |
static void |
installWeakWindowFocusListener(JComponent component,
WindowFocusListener focusListener)
|
static boolean |
isParentWindowFocused(Component component)
|
static void |
makeWindowNonOpaque(Window window)
Try's to make the given
Window non-opqaue (transparent) across
platforms and JREs. |
public static void makeWindowNonOpaque(Window window)
Window
non-opqaue (transparent) across
platforms and JREs. This method is not guaranteed to succeed, and will
fail silently if the given Window
cannot be made non-opaque.
This method is useful, for example, when creating a HUD style window that
is semi-transparent, and thus doesn't want the window background to be
drawn.window
- the Window
to make non-opaque.@Deprecated public static WindowFocusListener createAndInstallRepaintWindowFocusListener(Window window)
installJComponentRepainterOnWindowFocusChanged(JComponent)
method.WindowFocusListener
on the given
Window
which calls the Window
's repaint()
method
on focus state changes.window
- the Window
to repaint on focus state changes.public static boolean isParentWindowFocused(Component component)
true
if the given Component
's has a parent Window
(i.e. it's not null) and that Window
is currently active
(focused).component
- the Component
to check the parent Window
's
focus for.true
if the given Component
's parent
Window
is currently active.public static void installWeakWindowFocusListener(JComponent component, WindowFocusListener focusListener)
WindowFocusListener
on the given JComponent
's
parent Window
. If the JComponent
doesn't yet have a
parent, then the listener will be installed when the component is added
to a container.component
- the component who's parent frame to listen to focus changes
on.focusListener
- the WindowFocusListener
to notify when focus changes.public static void installJComponentRepainterOnWindowFocusChanged(JComponent component)
JComponent
's parent
Window
that repaints the given component when the parent window's
focused state changes. If the given component does not have a parent at
the time this method is called, then an ancestor listener will be
installed that installs a window listener when the components parent
changes.component
- the JComponent
to add the repaint focus listener to.