Add some new native deletage to layoutlib.

Change-Id: Ib53df6c944ecd9680bf929afe03b08bcaa61ad70

2 files changed, 49 insertions, 0 deletions

diff --git a/tools/layoutlib/bridge/src/android/os/SystemClock_Delegate.java b/tools/layoutlib/bridge/src/android/os/SystemClock_Delegate.java
index bd332a6..26cb97b 100644
--- a/tools/layoutlib/bridge/src/android/os/SystemClock_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/os/SystemClock_Delegate.java
@@ -31,6 +31,7 @@ import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
  */
 public class SystemClock_Delegate {
     private static long sBootTime = System.currentTimeMillis();
+    private static long sBootTimeNano = System.nanoTime();
 
     @LayoutlibDelegate
     /*package*/ static boolean setCurrentTimeMillis(long millis) {
@@ -60,6 +61,16 @@ public class SystemClock_Delegate {
     }
 
     /**
+     * Returns nanoseconds since boot, including time spent in sleep.
+     *
+     * @return elapsed nanoseconds since boot.
+     */
+    @LayoutlibDelegate
+    /*package*/ static long elapsedRealtimeNano() {
+        return System.nanoTime() - sBootTimeNano;
+    }
+
+    /**
      * Returns milliseconds running in the current thread.
      *
      * @return elapsed milliseconds in the thread
diff --git a/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java b/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java
index 1df78c2..8b4c60b 100644
--- a/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java
@@ -91,4 +91,42 @@ import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
     /*package*/ static float sqrt(float value) {
         return (float)Math.sqrt(value);
     }
+
+    /**
+     * Returns the closest float approximation of the raising "e" to the power
+     * of the argument.
+     *
+     * @param value to compute the exponential of
+     * @return the exponential of value
+     */
+    @LayoutlibDelegate
+    /*package*/ static float exp(float value) {
+        return (float)Math.exp(value);
+    }
+
+    /**
+     * Returns the closest float approximation of the result of raising {@code
+     * x} to the power of {@code y}.
+     *
+     * @param x the base of the operation.
+     * @param y the exponent of the operation.
+     * @return {@code x} to the power of {@code y}.
+     */
+    @LayoutlibDelegate
+    /*package*/ static float pow(float x, float y) {
+        return (float)Math.pow(x, y);
+    }
+
+    /**
+     * Returns {@code sqrt(}<i>{@code x}</i><sup>{@code 2}</sup>{@code +} <i>
+     * {@code y}</i><sup>{@code 2}</sup>{@code )}.
+     *
+     * @param x a float number
+     * @param y a float number
+     * @return the hypotenuse
+     */
+    @LayoutlibDelegate
+    /*package*/ static float hypot(float x, float y) {
+        return (float)Math.sqrt(x*x + y*y);
+    }
 }