1 files changed, 88 insertions, 0 deletions
diff --git a/WallpaperPicker/src/com/android/gallery3d/exif/Rational.java b/WallpaperPicker/src/com/android/gallery3d/exif/Rational.java
new file mode 100644
index 000000000..591d63faf
--- /dev/null
+++ b/WallpaperPicker/src/com/android/gallery3d/exif/Rational.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.exif;
+
+/**
+ * The rational data type of EXIF tag. Contains a pair of longs representing the
+ * numerator and denominator of a Rational number.
+ */
+public class Rational {
+
+    private final long mNumerator;
+    private final long mDenominator;
+
+    /**
+     * Create a Rational with a given numerator and denominator.
+     *
+     * @param nominator
+     * @param denominator
+     */
+    public Rational(long nominator, long denominator) {
+        mNumerator = nominator;
+        mDenominator = denominator;
+    }
+
+    /**
+     * Create a copy of a Rational.
+     */
+    public Rational(Rational r) {
+        mNumerator = r.mNumerator;
+        mDenominator = r.mDenominator;
+    }
+
+    /**
+     * Gets the numerator of the rational.
+     */
+    public long getNumerator() {
+        return mNumerator;
+    }
+
+    /**
+     * Gets the denominator of the rational
+     */
+    public long getDenominator() {
+        return mDenominator;
+    }
+
+    /**
+     * Gets the rational value as type double. Will cause a divide-by-zero error
+     * if the denominator is 0.
+     */
+    public double toDouble() {
+        return mNumerator / (double) mDenominator;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof Rational) {
+            Rational data = (Rational) obj;
+            return mNumerator == data.mNumerator && mDenominator == data.mDenominator;
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return mNumerator + "/" + mDenominator;
+    }
+}