1 files changed, 160 insertions, 0 deletions
diff --git a/libs/hwui/Rect.h b/libs/hwui/Rect.h
new file mode 100644
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--- /dev/null
+++ b/libs/hwui/Rect.h
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2010 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_H
+#define ANDROID_UI_RECT_H
+
+#include <utils/Log.h>
+
+namespace android {
+namespace uirenderer {
+
+///////////////////////////////////////////////////////////////////////////////
+// Structs
+///////////////////////////////////////////////////////////////////////////////
+
+struct Rect {
+    float left;
+    float top;
+    float right;
+    float bottom;
+
+    Rect():
+            left(0),
+            top(0),
+            right(0),
+            bottom(0) {
+    }
+
+    Rect(float left, float top, float right, float bottom):
+            left(left),
+            top(top),
+            right(right),
+            bottom(bottom) {
+    }
+
+    Rect(const Rect& r) {
+        set(r);
+    }
+
+    Rect(Rect& r) {
+        set(r);
+    }
+
+    Rect& operator=(const Rect& r) {
+        set(r);
+        return *this;
+    }
+
+    Rect& operator=(Rect& r) {
+        set(r);
+        return *this;
+    }
+
+    friend int operator==(const Rect& a, const Rect& b) {
+        return !memcmp(&a, &b, sizeof(a));
+    }
+
+    friend int operator!=(const Rect& a, const Rect& b) {
+        return memcmp(&a, &b, sizeof(a));
+    }
+
+    bool isEmpty() const {
+        return left >= right || top >= bottom;
+    }
+
+    void setEmpty() {
+        memset(this, 0, sizeof(*this));
+    }
+
+    void set(float left, float top, float right, float bottom) {
+        this->left = left;
+        this->right = right;
+        this->top = top;
+        this->bottom = bottom;
+    }
+
+    void set(const Rect& r) {
+        set(r.left, r.top, r.right, r.bottom);
+    }
+
+    float getWidth() const {
+        return right - left;
+    }
+
+    float getHeight() const {
+        return bottom - top;
+    }
+
+    bool intersects(float left, float top, float right, float bottom) const {
+        return left < right && top < bottom &&
+                this->left < this->right && this->top < this->bottom &&
+                this->left < right && left < this->right &&
+                this->top < bottom && top < this->bottom;
+    }
+
+    bool intersects(const Rect& r) const {
+        return intersects(r.left, r.top, r.right, r.bottom);
+    }
+
+    bool intersect(float left, float top, float right, float bottom) {
+        if (left < right && top < bottom && !this->isEmpty() &&
+                this->left < right && left < this->right &&
+                this->top < bottom && top < this->bottom) {
+
+            if (this->left < left) this->left = left;
+            if (this->top < top) this->top = top;
+            if (this->right > right) this->right = right;
+            if (this->bottom > bottom) this->bottom = bottom;
+
+            return true;
+        }
+        return false;
+    }
+
+    bool intersect(const Rect& r) {
+        return intersect(r.left, r.top, r.right, r.bottom);
+    }
+
+    bool unionWith(const Rect& r) {
+        if (r.left < r.right && r.top < r.bottom) {
+            if (left < right && top < bottom) {
+                if (left > r.left) left = r.left;
+                if (top > r.top) top = r.top;
+                if (right < r.right) right = r.right;
+                if (bottom < r.bottom) bottom = r.bottom;
+                return true;
+            } else {
+                left = r.left;
+                top = r.top;
+                right = r.right;
+                bottom = r.bottom;
+                return true;
+            }
+        }
+        return false;
+    }
+
+    void dump() const {
+        LOGD("Rect[l=%f t=%f r=%f b=%f]", left, top, right, bottom);
+    }
+
+}; // struct Rect
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_RECT_H