1 files changed, 115 insertions, 0 deletions
diff --git a/ui/gfx/geometry/size.cc b/ui/gfx/geometry/size.cc
new file mode 100644
index 0000000000..69486723a1
--- /dev/null
+++ b/ui/gfx/geometry/size.cc
@@ -0,0 +1,115 @@
+// Copyright (c) 2012 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.
+
+#include "ui/gfx/geometry/size.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#elif defined(OS_IOS)
+#include <CoreGraphics/CoreGraphics.h>
+#elif defined(OS_MACOSX)
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
+#include "base/numerics/safe_math.h"
+#include "base/numerics/saturated_arithmetic.h"
+#include "base/strings/stringprintf.h"
+#include "build/build_config.h"
+#include "ui/gfx/geometry/safe_integer_conversions.h"
+#include "ui/gfx/geometry/size_conversions.h"
+
+namespace gfx {
+
+#if defined(OS_MACOSX)
+Size::Size(const CGSize& s)
+    : width_(s.width < 0 ? 0 : s.width),
+      height_(s.height < 0 ? 0 : s.height) {
+}
+
+Size& Size::operator=(const CGSize& s) {
+  set_width(s.width);
+  set_height(s.height);
+  return *this;
+}
+#endif
+
+#if defined(OS_WIN)
+SIZE Size::ToSIZE() const {
+  SIZE s;
+  s.cx = width();
+  s.cy = height();
+  return s;
+}
+#elif defined(OS_MACOSX)
+CGSize Size::ToCGSize() const {
+  return CGSizeMake(width(), height());
+}
+#endif
+
+int Size::GetArea() const {
+  return GetCheckedArea().ValueOrDie();
+}
+
+base::CheckedNumeric<int> Size::GetCheckedArea() const {
+  base::CheckedNumeric<int> checked_area = width();
+  checked_area *= height();
+  return checked_area;
+}
+
+void Size::Enlarge(int grow_width, int grow_height) {
+  SetSize(base::SaturatedAddition(width(), grow_width),
+          base::SaturatedAddition(height(), grow_height));
+}
+
+void Size::SetToMin(const Size& other) {
+  width_ = width() <= other.width() ? width() : other.width();
+  height_ = height() <= other.height() ? height() : other.height();
+}
+
+void Size::SetToMax(const Size& other) {
+  width_ = width() >= other.width() ? width() : other.width();
+  height_ = height() >= other.height() ? height() : other.height();
+}
+
+std::string Size::ToString() const {
+  return base::StringPrintf("%dx%d", width(), height());
+}
+
+Size ScaleToCeiledSize(const Size& size, float x_scale, float y_scale) {
+  if (x_scale == 1.f && y_scale == 1.f)
+    return size;
+  return ToCeiledSize(ScaleSize(gfx::SizeF(size), x_scale, y_scale));
+}
+
+Size ScaleToCeiledSize(const Size& size, float scale) {
+  if (scale == 1.f)
+    return size;
+  return ToCeiledSize(ScaleSize(gfx::SizeF(size), scale, scale));
+}
+
+Size ScaleToFlooredSize(const Size& size, float x_scale, float y_scale) {
+  if (x_scale == 1.f && y_scale == 1.f)
+    return size;
+  return ToFlooredSize(ScaleSize(gfx::SizeF(size), x_scale, y_scale));
+}
+
+Size ScaleToFlooredSize(const Size& size, float scale) {
+  if (scale == 1.f)
+    return size;
+  return ToFlooredSize(ScaleSize(gfx::SizeF(size), scale, scale));
+}
+
+Size ScaleToRoundedSize(const Size& size, float x_scale, float y_scale) {
+  if (x_scale == 1.f && y_scale == 1.f)
+    return size;
+  return ToRoundedSize(ScaleSize(gfx::SizeF(size), x_scale, y_scale));
+}
+
+Size ScaleToRoundedSize(const Size& size, float scale) {
+  if (scale == 1.f)
+    return size;
+  return ToRoundedSize(ScaleSize(gfx::SizeF(size), scale, scale));
+}
+
+}  // namespace gfx