1 files changed, 73 insertions, 0 deletions
diff --git a/android/source/src/java/org/mozilla/gecko/gfx/IntSize.java b/android/source/src/java/org/mozilla/gecko/gfx/IntSize.java
new file mode 100644
index 000000000..b0741d2f6
--- /dev/null
+++ b/android/source/src/java/org/mozilla/gecko/gfx/IntSize.java
@@ -0,0 +1,73 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.gfx;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+public class IntSize {
+    public final int width, height;
+
+    public IntSize(IntSize size) { width = size.width; height = size.height; }
+    public IntSize(int inWidth, int inHeight) { width = inWidth; height = inHeight; }
+
+    public IntSize(FloatSize size) {
+        width = Math.round(size.width);
+        height = Math.round(size.height);
+    }
+
+    public IntSize(JSONObject json) {
+        try {
+            width = json.getInt("width");
+            height = json.getInt("height");
+        } catch (JSONException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public int getArea() {
+        return width * height;
+    }
+
+    public boolean equals(IntSize size) {
+        return ((size.width == width) && (size.height == height));
+    }
+
+    public boolean isPositive() {
+        return (width > 0 && height > 0);
+    }
+
+    @Override
+    public String toString() { return "(" + width + "," + height + ")"; }
+
+    public IntSize scale(float factor) {
+        return new IntSize(Math.round(width * factor),
+                Math.round(height * factor));
+    }
+
+    /* Returns the power of two that is greater than or equal to value */
+    public static int nextPowerOfTwo(int value) {
+        // code taken from http://acius2.blogspot.com/2007/11/calculating-next-power-of-2.html
+        if (0 == value--) {
+            return 1;
+        }
+        value = (value >> 1) | value;
+        value = (value >> 2) | value;
+        value = (value >> 4) | value;
+        value = (value >> 8) | value;
+        value = (value >> 16) | value;
+        return value + 1;
+    }
+
+    public static int nextPowerOfTwo(float value) {
+        return nextPowerOfTwo((int) value);
+    }
+
+    public IntSize nextPowerOfTwo() {
+        return new IntSize(nextPowerOfTwo(width), nextPowerOfTwo(height));
+    }
+}
+