X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FPlatform.java;h=0b9185c05d685b55bfb6b527cae193173fcecca8;hb=9e5d1bced16aa9975692115a964c661cd7897a7c;hp=b812febff4f4244fbef966fd3f5debd45fdd51d3;hpb=c54d46db524f1acf7cf4659a9603bbe50518440f;p=jalview.git

diff --git a/src/jalview/util/Platform.java b/src/jalview/util/Platform.java
index b812feb..0b9185c 100644
--- a/src/jalview/util/Platform.java
+++ b/src/jalview/util/Platform.java
@@ -20,6 +20,11 @@
  */
 package jalview.util;
 
+import java.awt.Toolkit;
+import java.awt.event.MouseEvent;
+
+import javax.swing.SwingUtilities;
+
 /**
  * System platform information used by Applet and Application
  * 
@@ -27,22 +32,74 @@ package jalview.util;
  */
 public class Platform
 {
+
+  private static boolean isJS = /** @j2sNative true || */false;
+
+  private static Boolean isNoJSMac = null, isNoJSWin = null, 
+		  isMac = null, isWin = null;
+  
+  private static Boolean isHeadless = null;
+
+  /**
+   * added to group mouse events into Windows and nonWindows (mac, unix, linux)
+   * @return
+   */
+  public static boolean isMac()
+  {
+	  return (isMac == null ? (isMac = (System.getProperty("os.name").indexOf("Mac") >= 0)) : isMac);
+  }
+
+  /**
+   * added to group mouse events into Windows and nonWindows (mac, unix, linux)
+   * @return
+   */
+  public static boolean isWin() 
+  {
+	  return (isWin == null ? (isWin = (System.getProperty("os.name").indexOf("Win") >= 0)) : isWin);
+  }
+
+  /**
+   * 
+   * @return true if HTML5 JavaScript
+   */
+  public static boolean isJS()
+  {
+	return isJS;
+  }
+
   /**
    * sorry folks - Macs really are different
    * 
+   * BH: disabled for SwingJS -- will need to check key-press issues
+   * 
    * @return true if we do things in a special way.
    */
-  public static boolean isAMac()
+  public static boolean isAMacAndNotJS()
   {
-    return java.lang.System.getProperty("os.name").indexOf("Mac") > -1;
-
+	return (isNoJSMac == null ? (isNoJSMac = !isJS && isMac()) : isNoJSMac);
   }
 
-  public static boolean isHeadless()
+/**
+   * Check if we are on a Microsoft plaform...
+   * 
+   * @return true if we have to cope with another platform variation
+   */
+  public static boolean isWindowsAndNotJS()
   {
-    String hdls = java.lang.System.getProperty("java.awt.headless");
+	return (isNoJSWin == null ? (isNoJSWin = !isJS && isWin()) : isNoJSWin);
+   }
 
-    return hdls != null && hdls.equals("true");
+  /**
+   * 
+   * @return true if we are running in non-interactive no UI mode
+   */
+  public static boolean isHeadless()
+  {
+    if (isHeadless == null)
+    {
+      isHeadless = "true".equals(System.getProperty("java.awt.headless"));
+    }
+    return isHeadless;
   }
 
   /**
@@ -74,4 +131,110 @@ public class Platform
     f.append(file.substring(lastp));
     return f.toString();
   }
+
+  /**
+   * Answers true if the mouse event has Meta-down (Command key on Mac) or
+   * Ctrl-down (on other o/s). Note this answers _false_ if the Ctrl key is
+   * pressed instead of the Meta/Cmd key on Mac. To test for Ctrl-pressed on Mac,
+   * you can use e.isPopupTrigger().
+   * 
+   * @param e
+   * @return
+   */
+  public static boolean isControlDown(MouseEvent e)
+  {
+    return isControlDown(e, isMac());
+  }
+
+  /**
+   * Overloaded version of method (to allow unit testing)
+   * 
+   * @param e
+   * @param aMac
+   * @return
+   */
+  protected static boolean isControlDown(MouseEvent e, boolean aMac)
+  {
+    if (!aMac) {
+        return e.isControlDown();    	
+    }
+      // answer false for right mouse button
+      // shortcut key will be META for a Mac 
+    return !e.isPopupTrigger() 
+    		  && (Toolkit.getDefaultToolkit().getMenuShortcutKeyMask() & e.getModifiers()) != 0;
+      // could we use e.isMetaDown() here?
+  }
+
+  /**
+   * Windows (not Mac, Linux, or Unix) and right button
+   * to test for the right-mouse pressed event in Windows
+   * that would have opened a menu or a Mac. 
+   * 
+   * @param e
+   * @return
+   */
+  public static boolean isWinRightButton(MouseEvent e) 
+  {
+	  // was !isAMac(), but that is true also for Linux and Unix and JS, 
+
+	  return isWin() && SwingUtilities.isRightMouseButton(e);
+  }
+  
+  
+  /**
+   * Windows (not Mac, Linux, or Unix) and middle button -- for mouse wheeling 
+   * without pressing the button.
+   * 
+   * @param e
+   * @return
+   */
+  public static boolean isWinMiddleButton(MouseEvent e) 
+  {
+	// was !isAMac(), but that is true also for Linux and Unix and JS
+	  return isWin() && SwingUtilities.isMiddleMouseButton(e);
+  }
+
+  public static boolean allowMnemonics() 
+  {
+	return !isMac();
+  }
+  
+  public final static int TIME_RESET = 0;
+  public final static int TIME_MARK  = 1;
+  public static final int TIME_SET   = 2;
+  public static final int TIME_GET   = 3;
+  
+  public static long time, mark, set, duration;
+  
+  public static void timeCheck(String msg, int mode) {
+	  long t = System.currentTimeMillis();
+	  switch (mode) {
+	  case TIME_RESET:
+		  time = mark = t;
+		  if (msg != null)
+			  System.err.println("Platform: timer reset\t\t\t" + msg);
+		  break;
+	  case TIME_MARK:
+		  if (set > 0) {
+			  duration += (t - set);
+	  	  } else {
+			  if (time == 0)
+				  time = mark = t;
+			  if (msg != null)
+				  System.err.println("Platform: timer mark\t" + ((t - time)/1000f) + "\t" + ((t - mark)/1000f) + "\t" + msg);
+			  mark = t;
+	  	  }
+		  break;
+	  case TIME_SET:
+		  set = t;
+		  break;
+	  case TIME_GET:
+		  if (msg != null)
+			  System.err.println("Platform: timer dur\t" + ((t - time)/1000f) + "\t" + ((duration)/1000f) + "\t" + msg);
+		  set = 0;
+		  break;
+	  }
+  }
+
+   
 }