Package com.jgoodies.looks

Class LookUtils

java.lang.Object
com.jgoodies.common.base.SystemUtils
com.jgoodies.looks.LookUtils
public final class LookUtils extends com.jgoodies.common.base.SystemUtils
Provides convenience behavior used by the JGoodies Looks.
Version:
$Revision: 1.18 $

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final boolean
    IS_OS_WINDOWS_95
    True if this is Windows 95.
    static final boolean
    IS_OS_WINDOWS_MODERN
    True if this is Windows 98/ME/2000/Server 2003/XP/VISTA/Server 2008.
    static final boolean
    IS_OS_WINDOWS_NT
    True if this is Windows NT.
    private static boolean
    loggingEnabled
     

    Fields inherited from class com.jgoodies.common.base.SystemUtils

    HAS_MODERN_RASTERIZER, IS_JAVA_6, IS_JAVA_7, IS_JAVA_7_OR_LATER, IS_JAVA_8, IS_JAVA_8_OR_LATER, IS_LAF_WINDOWS_XP_ENABLED, IS_LOW_RESOLUTION, IS_OS_LINUX, IS_OS_MAC, IS_OS_SOLARIS, IS_OS_WINDOWS, IS_OS_WINDOWS_2000, IS_OS_WINDOWS_6_OR_LATER, IS_OS_WINDOWS_7, IS_OS_WINDOWS_8, IS_OS_WINDOWS_98, IS_OS_WINDOWS_ME, IS_OS_WINDOWS_VISTA, IS_OS_WINDOWS_XP, IS_OS_WINDOWS_XP_64_BIT_OR_SERVER_2003, JAVA_VERSION, OS_NAME, OS_VERSION

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
    LookUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static Boolean
    getBooleanSystemProperty(String key, String logMessage)
    Checks if a boolean system property has been set for the given key, and returns the associated Boolean, or null if no value has been set.
    static Object
    getDefaultTheme(LookAndFeel laf)
     
    static List
    getInstalledThemes(LookAndFeel laf)
     
    static Color
    getSlightlyBrighter(Color color)
    Computes and returns a Color that is slightly brighter than the specified Color.
    static Color
    getSlightlyBrighter(Color color, float factor)
    Computes and returns a Color that is slightly brighter than the specified Color.
    static String
    getSystemProperty(String key)
    Tries to look up the System property for the given key.
    static String
    getSystemProperty(String key, String defaultValue)
    Tries to look up the System property for the given key.
    static boolean
    getToolkitUsesNativeDropShadows()
    Checks and answers whether this toolkit provides native drop shadows for popups such as the Mac OS X.
    static boolean
    isTrueColor(Component c)
    Checks and answers whether we have a true color system.
    static void
    log()
    Prints a new line to the console if logging is enabled.
    static void
    log(String message)
    Prints the given message to the console if logging is enabled.
    static void
    setLoggingEnabled(boolean enabled)
    Enables or disables the Looks logging.
    static void
    setLookAndTheme(LookAndFeel laf, Object theme)
     

    Methods inherited from class com.jgoodies.common.base.SystemUtils

    isLafAqua, startsWith

    Methods inherited from class java.lang.Object

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

  • Field Details

    • IS_OS_WINDOWS_MODERN

      public static final boolean IS_OS_WINDOWS_MODERN
      True if this is Windows 98/ME/2000/Server 2003/XP/VISTA/Server 2008.

    • IS_OS_WINDOWS_95

      public static final boolean IS_OS_WINDOWS_95
      True if this is Windows 95.
      Since:
      2.0

    • IS_OS_WINDOWS_NT

      public static final boolean IS_OS_WINDOWS_NT
      True if this is Windows NT.
      Since:
      2.0

    • loggingEnabled

      private static boolean loggingEnabled

  • Constructor Details

    • LookUtils

      private LookUtils()

  • Method Details

    • getSystemProperty

      public static String getSystemProperty(String key)
      Tries to look up the System property for the given key. In untrusted environments this may throw a SecurityException. In this case we catch the exception and answer null.
      Parameters:
      key - the name of the system property
      Returns:
      the system property's String value, or null if there's no such value, or a SecurityException has been caught

    • getSystemProperty

      public static String getSystemProperty(String key, String defaultValue)
      Tries to look up the System property for the given key. In untrusted environments this may throw a SecurityException. In this case, we catch the exception and answer the default value.
      Parameters:
      key - the name of the system property
      defaultValue - the default value if no property exists.
      Returns:
      the system property's String value, or the defaultValue if there's no such value, or a SecurityException has been caught

    • getBooleanSystemProperty

      public static Boolean getBooleanSystemProperty(String key, String logMessage)
      Checks if a boolean system property has been set for the given key, and returns the associated Boolean, or null if no value has been set. The test for the property ignores case. If a Boolean value has been set, a message is logged with the given prefix.
      Parameters:
      key - the key used to lookup the system property value
      logMessage - a prefix used when a message is logged
      Returns:
      Boolean.TRUE if the system property has been set to "true" (case ignored), Boolean.FALSE if it has been set to "false", null otherwise

    • isTrueColor

      public static boolean isTrueColor(Component c)
      Checks and answers whether we have a true color system.
      Parameters:
      c - the component used to determine the toolkit
      Returns:
      true if the component's toolkit has a pixel size >= 24

    • getToolkitUsesNativeDropShadows

      public static boolean getToolkitUsesNativeDropShadows()
      Checks and answers whether this toolkit provides native drop shadows for popups such as the Mac OS X. Currently this is used to determine if the Looks' popup drop shadow feature is active or not - even if it's enabled.
      Returns:
      true if the toolkit provides native drop shadows
      See Also:

    • getSlightlyBrighter

      public static Color getSlightlyBrighter(Color color)
      Computes and returns a Color that is slightly brighter than the specified Color.
      Parameters:
      color - the color used as basis for the brightened color
      Returns:
      a slightly brighter color

    • getSlightlyBrighter

      public static Color getSlightlyBrighter(Color color, float factor)
      Computes and returns a Color that is slightly brighter than the specified Color.
      Parameters:
      color - the color used as basis for the brightened color
      factor - the factor used to compute the brightness
      Returns:
      a slightly brighter color

    • setLookAndTheme

      public static void setLookAndTheme(LookAndFeel laf, Object theme) throws UnsupportedLookAndFeelException
      Throws:
      UnsupportedLookAndFeelException

    • getDefaultTheme

      public static Object getDefaultTheme(LookAndFeel laf)

    • getInstalledThemes

      public static List getInstalledThemes(LookAndFeel laf)

    • setLoggingEnabled

      public static void setLoggingEnabled(boolean enabled)
      Enables or disables the Looks logging.
      Parameters:
      enabled - true to enable logging, false to disable it

    • log

      public static void log()
      Prints a new line to the console if logging is enabled.

    • log

      public static void log(String message)
      Prints the given message to the console if logging is enabled.
      Parameters:
      message - the message to print