auto import from //depot/cupcake/@135843
diff --git a/include/ui/Rect.h b/include/ui/Rect.h
new file mode 100644
index 0000000..d232847
--- /dev/null
+++ b/include/ui/Rect.h
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#ifndef ANDROID_UI_RECT
+#define ANDROID_UI_RECT
+
+#include <utils/TypeHelpers.h>
+#include <ui/Point.h>
+
+namespace android {
+
+class Rect
+{
+public:
+ int left;
+ int top;
+ int right;
+ int bottom;
+
+ // we don't provide copy-ctor and operator= on purpose
+ // because we want the compiler generated versions
+
+ inline Rect()
+ {
+ }
+
+ inline Rect(int w, int h)
+ : left(0), top(0), right(w), bottom(h)
+ {
+ }
+
+ inline Rect(int l, int t, int r, int b)
+ : left(l), top(t), right(r), bottom(b)
+ {
+ }
+
+ inline Rect(const Point& lt, const Point& rb)
+ : left(lt.x), top(lt.y), right(rb.x), bottom(rb.y)
+ {
+ }
+
+ void makeInvalid();
+
+ // a valid rectangle has a non negative width and height
+ inline bool isValid() const {
+ return (width()>=0) && (height()>=0);
+ }
+
+ // an empty rect has a zero width or height, or is invalid
+ inline bool isEmpty() const {
+ return (width()<=0) || (height()<=0);
+ }
+
+ inline void set(const Rect& rhs) {
+ operator = (rhs);
+ }
+
+ // rectangle's width
+ inline int width() const {
+ return right-left;
+ }
+
+ // rectangle's height
+ inline int height() const {
+ return bottom-top;
+ }
+
+ // returns left-top Point non-const reference, can be assigned
+ inline Point& leftTop() {
+ return reinterpret_cast<Point&>(left);
+ }
+ // returns right bottom non-const reference, can be assigned
+ inline Point& rightBottom() {
+ return reinterpret_cast<Point&>(right);
+ }
+
+ // the following 4 functions return the 4 corners of the rect as Point
+ inline const Point& leftTop() const {
+ return reinterpret_cast<const Point&>(left);
+ }
+ inline const Point& rightBottom() const {
+ return reinterpret_cast<const Point&>(right);
+ }
+ Point rightTop() const {
+ return Point(right, top);
+ }
+ Point leftBottom() const {
+ return Point(left, bottom);
+ }
+
+ // comparisons
+ inline bool operator == (const Rect& rhs) const {
+ return (left == rhs.left) && (top == rhs.top) &&
+ (right == rhs.right) && (bottom == rhs.bottom);
+ }
+
+ inline bool operator != (const Rect& rhs) const {
+ return !operator == (rhs);
+ }
+
+ // operator < defines an order which allows to use rectangles in sorted
+ // vectors.
+ bool operator < (const Rect& rhs) const;
+
+ Rect& offsetToOrigin() {
+ right -= left;
+ bottom -= top;
+ left = top = 0;
+ return *this;
+ }
+ Rect& offsetTo(const Point& p) {
+ return offsetTo(p.x, p.y);
+ }
+ Rect& offsetBy(const Point& dp) {
+ return offsetBy(dp.x, dp.y);
+ }
+ Rect& operator += (const Point& rhs) {
+ return offsetBy(rhs.x, rhs.y);
+ }
+ Rect& operator -= (const Point& rhs) {
+ return offsetBy(-rhs.x, -rhs.y);
+ }
+ Rect operator + (const Point& rhs) const;
+ Rect operator - (const Point& rhs) const;
+
+ void translate(int dx, int dy) { // legacy, don't use.
+ offsetBy(dx, dy);
+ }
+
+ Rect& offsetTo(int x, int y);
+ Rect& offsetBy(int x, int y);
+ bool intersect(const Rect& with, Rect* result) const;
+};
+
+ANDROID_BASIC_TYPES_TRAITS(Rect)
+
+}; // namespace android
+
+#endif // ANDROID_UI_RECT