com.alee.utils

Class ProprietaryUtils

java.lang.Object

com.alee.utils.ProprietaryUtils

public final class ProprietaryUtils
extends java.lang.Object

This utility class operates only with proprietary API calls. Their usage is inevitable, otherwise i would have replaced them with something else.

Field Summary

Fields

Modifier and Type	Field and Description
static int	HEAVY_WEIGHT_POPUP
static int	LIGHT_WEIGHT_POPUP Key used to indicate a light weight popup should be used.
static int	MEDIUM_WEIGHT_POPUP Key used to indicate a medium weight Popup should be used.

Constructor Summary

Constructors

Constructor and Description
ProprietaryUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static javax.swing.Popup	createHeavyweightPopup(java.awt.Component invoker, java.awt.Component content, int x, int y) Returns heavyweight popup instance.
static float	getWindowOpacity(java.awt.Window window) Returns window opacity.
static boolean	isAllowLinuxTransparency() Returns whether per-pixel transparent windows usage is allowed on Linux systems or not.
static boolean	isWindowOpaque(java.awt.Window window) Returns whether window is opaque or not.
static boolean	isWindowTransparencyAllowed() Returns whether window transparency is supported on current OS or not.
static void	setAllowLinuxTransparency(boolean allow) Sets whether per-pixel transparent windows usage is allowed on Linux systems or not.
protected static void	setupOpacityBackgroundColor(boolean opaque, java.awt.Component component) Changes component background color to match opacity.
static void	setupUIDefaults(javax.swing.UIDefaults table) Installs some proprietary L&F defaults for proper text rendering.
static void	setWindowOpacity(java.awt.Window window, float opacity) Sets window opacity if that option is supported by the underlying system.
static void	setWindowOpaque(java.awt.Window window, boolean opaque) Sets window opaque if that option is supported by the underlying system.

Methods inherited from class java.lang.Object

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

Field Detail

LIGHT_WEIGHT_POPUP

public static final int LIGHT_WEIGHT_POPUP

Key used to indicate a light weight popup should be used.

See Also:

Constant Field Values

MEDIUM_WEIGHT_POPUP

public static final int MEDIUM_WEIGHT_POPUP

Key used to indicate a medium weight Popup should be used.

See Also:

Constant Field Values

HEAVY_WEIGHT_POPUP

public static final int HEAVY_WEIGHT_POPUP

See Also:

Constant Field Values

Constructor Detail

ProprietaryUtils

public ProprietaryUtils()

Method Detail

isAllowLinuxTransparency

public static boolean isAllowLinuxTransparency()

Returns whether per-pixel transparent windows usage is allowed on Linux systems or not.

Returns:

true if per-pixel transparent windows usage is allowed on Linux systems, false otherwise

setAllowLinuxTransparency

public static void setAllowLinuxTransparency(boolean allow)

Sets whether per-pixel transparent windows usage is allowed on Linux systems or not. This might be an unstable feature so it is disabled by default. Use it at your own risk.

Parameters:

allow - whether per-pixel transparent windows usage is allowed on Linux systems or not

setupUIDefaults

public static void setupUIDefaults(javax.swing.UIDefaults table)

Installs some proprietary L&F defaults for proper text rendering. Basically this method is a workaround for this simple call: table.put ( sun.swing.SwingUtilities2.AA_TEXT_PROPERTY_KEY, sun.swing.SwingUtilities2.AATextInfo.getAATextInfo ( true ) ); but it doesn't directly use any proprietary API.

Parameters:

table - defaults table

isWindowTransparencyAllowed

public static boolean isWindowTransparencyAllowed()

Returns whether window transparency is supported on current OS or not.

Returns:

true if window transparency is supported on current OS; false otherwise

setWindowOpaque

public static void setWindowOpaque(java.awt.Window window,
                   boolean opaque)

Sets window opaque if that option is supported by the underlying system.

Parameters:

window - window to process

opaque - whether should make window opaque or not

setupOpacityBackgroundColor

protected static void setupOpacityBackgroundColor(boolean opaque,
                               java.awt.Component component)
                                           throws java.lang.NoSuchMethodException,
                                                  java.lang.reflect.InvocationTargetException,
                                                  java.lang.IllegalAccessException

Changes component background color to match opacity.

Parameters:

opaque - whether component should should be opaque or not

component - component to process

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

isWindowOpaque

public static boolean isWindowOpaque(java.awt.Window window)

Returns whether window is opaque or not.

Parameters:

window - window to process

Returns:

whether window background is opaque or not

setWindowOpacity

public static void setWindowOpacity(java.awt.Window window,
                    float opacity)

Sets window opacity if that option is supported by the underlying system.

Parameters:

window - window to process

opacity - new window opacity

getWindowOpacity

public static float getWindowOpacity(java.awt.Window window)

Returns window opacity.

Parameters:

window - window to process

Returns:

window opacity

createHeavyweightPopup

public static javax.swing.Popup createHeavyweightPopup(java.awt.Component invoker,
                                       java.awt.Component content,
                                       int x,
                                       int y)

Returns heavyweight popup instance. By default Swing popups are MEDIUM_WEIGHT_POPUP and there is no convenient way to create popups of other types. Though this can be done by calling similar method on the PopupFactory instance which simply takes the popup type. This method is safe to use and should work on any JDK version.

Parameters:

invoker - invoker component

content - popup content

x - popup initial location X coordinate

y - popup initial location Y coordinate

Returns:

heavyweight popup instance