1 files changed, 108 insertions, 0 deletions
diff --git a/ppapi/cpp/size.h b/ppapi/cpp/size.h
new file mode 100644
index 0000000..adcaf78
--- /dev/null
+++ b/ppapi/cpp/size.h
@@ -0,0 +1,108 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_CPP_SIZE_H_
+#define PPAPI_CPP_SIZE_H_
+
+#include "ppapi/c/pp_size.h"
+#include "ppapi/cpp/logging.h"
+
+namespace pp {
+
+class Size {
+ public:
+  Size() {
+    size_.width = 0;
+    size_.height = 0;
+  }
+  Size(const PP_Size& s) {  // Implicit.
+    // Want the >= 0 checking of the setter.
+    set_width(s.width);
+    set_height(s.height);
+  }
+  Size(int w, int h) {
+    // Want the >= 0 checking of the setter.
+    set_width(w);
+    set_height(h);
+  }
+
+  ~Size() {
+  }
+
+  operator PP_Size() {
+    return size_;
+  }
+  const PP_Size& pp_size() const {
+    return size_;
+  }
+  PP_Size& pp_size() {
+    return size_;
+  }
+
+  int width() const {
+    return size_.width;
+  }
+  void set_width(int w) {
+    if (w < 0) {
+      PP_DCHECK(w >= 0);
+      w = 0;
+    }
+    size_.width = w;
+  }
+
+  int height() const {
+    return size_.height;
+  }
+  void set_height(int h) {
+    if (h < 0) {
+      PP_DCHECK(h >= 0);
+      h = 0;
+    }
+    size_.height = h;
+  }
+
+  int GetArea() const {
+    return width() * height();
+  }
+
+  void SetSize(int w, int h) {
+    set_width(w);
+    set_height(h);
+  }
+
+  void Enlarge(int w, int h) {
+    set_width(width() + w);
+    set_height(height() + h);
+  }
+
+  void swap(Size& other) {
+    int32_t w = size_.width;
+    int32_t h = size_.height;
+    size_.width = other.size_.width;
+    size_.height = other.size_.height;
+    other.size_.width = w;
+    other.size_.height = h;
+  }
+
+  bool IsEmpty() const {
+    // Size doesn't allow negative dimensions, so testing for 0 is enough.
+    return (width() == 0) || (height() == 0);
+  }
+
+ private:
+  PP_Size size_;
+};
+
+}  // namespace pp
+
+inline bool operator==(const pp::Size& lhs, const pp::Size& rhs) {
+  return lhs.width() == rhs.width() && lhs.height() == rhs.height();
+}
+
+inline bool operator!=(const pp::Size& lhs, const pp::Size& rhs) {
+  return !(lhs == rhs);
+}
+
+#endif  // PPAPI_CPP_SIZE_H_
+