Package org.pushingpixels.lafwidget.utils

Class LookUtils

java.lang.Object
org.pushingpixels.lafwidget.utils.LookUtils
public final class LookUtils extends Object
Provides convenience behavior used by the JGoodies Looks.

  • Field Details

    • IS_JAVA_1_4

      public static final boolean IS_JAVA_1_4
      True if this is Java 1.4.

    • IS_JAVA_1_4_0

      public static final boolean IS_JAVA_1_4_0
      True if this is Java 1.4.0_*.

    • IS_JAVA_1_4_2_OR_LATER

      public static final boolean IS_JAVA_1_4_2_OR_LATER
      True if this is Java 1.4.2 or later. Since we assume Java 1.4 we just check for 1.4.0 and 1.4.1.

    • IS_JAVA_5

      public static final boolean IS_JAVA_5
      True if this is Java 5.x. We check for a prefix of 1.5.

    • IS_JAVA_5_OR_LATER

      public static final boolean IS_JAVA_5_OR_LATER
      True if this is Java 5.x or later. Since we don't support Java 1.3, we can check that it's not 1.4.

    • IS_JAVA_6

      public static final boolean IS_JAVA_6
      True if this is Java 6. We check for a prefix of 1.6.

    • IS_JAVA_6_OR_LATER

      public static final boolean IS_JAVA_6_OR_LATER
      True if this is Java 6.x or later. Since we don't support Java 1.3, we can check that it's neither 1.4 nor 1.5.

    • IS_JAVA_1_4_OR_5

      public static final boolean IS_JAVA_1_4_OR_5
      True if this is Java 1.4 or Java 5.

    • IS_OS_FREEBSD

      public static final boolean IS_OS_FREEBSD
      True if this is FreeBSD.

    • IS_OS_LINUX

      public static final boolean IS_OS_LINUX
      True if this is Linux.

    • IS_OS_OS2

      public static final boolean IS_OS_OS2
      True if this is OS/2.

    • IS_OS_MAC

      public static final boolean IS_OS_MAC
      True if this is the Mac OS X.

    • IS_OS_WINDOWS

      public static final boolean IS_OS_WINDOWS
      True if this is Windows.

    • IS_OS_WINDOWS_MODERN

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

    • IS_OS_WINDOWS_95

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

    • IS_OS_WINDOWS_98

      public static final boolean IS_OS_WINDOWS_98
      True if this is Windows 98.
      Since:
      2.0

    • IS_OS_WINDOWS_NT

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

    • IS_OS_WINDOWS_ME

      public static final boolean IS_OS_WINDOWS_ME
      True if this is Windows ME.
      Since:
      2.0

    • IS_OS_WINDOWS_2000

      public static final boolean IS_OS_WINDOWS_2000
      True if this is Windows 2000.
      Since:
      2.0

    • IS_OS_WINDOWS_XP

      public static final boolean IS_OS_WINDOWS_XP
      True if this is Windows XP.

    • IS_OS_WINDOWS_VISTA

      public static final boolean IS_OS_WINDOWS_VISTA
      True if this is Windows Vista.
      Since:
      2.0

    • IS_OS_SOLARIS

      public static final boolean IS_OS_SOLARIS
      True if this is Solaris.

    • IS_LAF_WINDOWS_XP_ENABLED

      public static final boolean IS_LAF_WINDOWS_XP_ENABLED
      True if the Windows XP Look&Feel is enabled.

    • IS_LOW_RESOLUTION

      public static final boolean IS_LOW_RESOLUTION
      True if if the screen resolution is smaller than 120 dpi.
      See Also:

  • 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

    • 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

    • 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