Enable colors for terse output

There was a choice for “many”, “some” or “none” but no way to
set it. The color choices were impractical anyway (bold black
foreground on standard background). Now the colors for terse
output provide proper visibility and are enabled together with
colored output.

Author: szeiger

src/main/scala/scala/tools/partest/nest/NestUI.scala

@@ -8,7 +8,7 @@ package nest
 
 import java.io.PrintWriter
 
-class Colors(enabled: => Boolean) {
+class Colors(enabled: Boolean) {
   import Console._
 
   val bold    = colored(BOLD)
@@ -38,15 +38,9 @@ class NestUI(val verbose: Boolean = false, val debug: Boolean = false, val terse
   val color = new Colors(colorEnabled)
   import color._
 
-  val NONE = 0
-  val SOME = 1
-  val MANY = 2
-
-  private[this] var _outline = ""
-  private[this] var _success = ""
-  private[this] var _failure = ""
-  private[this] var _warning = ""
-  private[this] var _default = ""
+  private[this] val (_outline, _success, _failure, _warning, _default) =
+    if (colorEnabled) (Console.BOLD, Console.BOLD + Console.GREEN, Console.BOLD + Console.RED, Console.BOLD + Console.YELLOW, Console.RESET)
+    else ("", "", "", "", "")
 
   private[this] var dotCount = 0
   private[this] val DotWidth = 72
@@ -113,22 +107,6 @@ class NestUI(val verbose: Boolean = false, val debug: Boolean = false, val terse
   def echoMixed(msg: String)   = echo(bold(yellow(msg)))
   def echoWarning(msg: String) = echo(bold(red(msg)))
 
-  def initialize(number: Int) = number match {
-    case MANY =>
-      _outline = Console.BOLD + Console.BLACK
-      _success = Console.BOLD + Console.GREEN
-      _failure = Console.BOLD +  Console.RED
-      _warning = Console.BOLD + Console.YELLOW
-      _default = Console.RESET
-    case SOME =>
-      _outline = Console.BOLD + Console.BLACK
-      _success = Console.RESET
-      _failure = Console.BOLD + Console.BLACK
-      _warning = Console.BOLD + Console.BLACK
-      _default = Console.RESET
-    case _ =>
-  }
-
   def outline(msg: String) = print(_outline + msg + _default)
   def outline(msg: String, wr: PrintWriter) = synchronized {
     wr.print(_outline + msg + _default)