2 files changed, 163 insertions, 0 deletions
diff --git a/ui/gfx/point.cc b/ui/gfx/point.cc
new file mode 100644
index 0000000..ba9ced7
--- /dev/null
+++ b/ui/gfx/point.cc
@@ -0,0 +1,56 @@
+// Copyright (c) 2011 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/point.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#endif
+
+#include "base/stringprintf.h"
+
+namespace gfx {
+
+Point::Point() : x_(0), y_(0) {
+}
+
+Point::Point(int x, int y) : x_(x), y_(y) {
+}
+
+#if defined(OS_WIN)
+Point::Point(DWORD point) {
+  POINTS points = MAKEPOINTS(point);
+  x_ = points.x;
+  y_ = points.y;
+}
+
+Point::Point(const POINT& point) : x_(point.x), y_(point.y) {
+}
+
+Point& Point::operator=(const POINT& point) {
+  x_ = point.x;
+  y_ = point.y;
+  return *this;
+}
+
+POINT Point::ToPOINT() const {
+  POINT p;
+  p.x = x_;
+  p.y = y_;
+  return p;
+}
+#elif defined(OS_MACOSX)
+Point::Point(const CGPoint& point) : x_(point.x), y_(point.y) {
+}
+
+CGPoint Point::ToCGPoint() const {
+  return CGPointMake(x_, y_);
+}
+#endif
+
+std::string Point::ToString() const {
+  return base::StringPrintf("%d,%d", x_, y_);
+}
+
+}  // namespace gfx
diff --git a/ui/gfx/point.h b/ui/gfx/point.h
new file mode 100644
index 0000000..fe39e3b
--- /dev/null
+++ b/ui/gfx/point.h
@@ -0,0 +1,107 @@
+// Copyright (c) 2011 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 UI_GFX_POINT_H_
+#define UI_GFX_POINT_H_
+#pragma once
+
+#include <string>
+
+#include "build/build_config.h"
+#include "ui/base/ui_export.h"
+
+#if defined(OS_WIN)
+typedef unsigned long DWORD;
+typedef struct tagPOINT POINT;
+#elif defined(OS_MACOSX)
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
+namespace gfx {
+
+// A point has an x and y coordinate.
+class UI_EXPORT Point {
+ public:
+  Point();
+  Point(int x, int y);
+#if defined(OS_WIN)
+  // |point| is a DWORD value that contains a coordinate.  The x-coordinate is
+  // the low-order short and the y-coordinate is the high-order short.  This
+  // value is commonly acquired from GetMessagePos/GetCursorPos.
+  explicit Point(DWORD point);
+  explicit Point(const POINT& point);
+  Point& operator=(const POINT& point);
+#elif defined(OS_MACOSX)
+  explicit Point(const CGPoint& point);
+#endif
+
+  ~Point() {}
+
+  int x() const { return x_; }
+  int y() const { return y_; }
+
+  void SetPoint(int x, int y) {
+    x_ = x;
+    y_ = y;
+  }
+
+  void set_x(int x) { x_ = x; }
+  void set_y(int y) { y_ = y; }
+
+  void Offset(int delta_x, int delta_y) {
+    x_ += delta_x;
+    y_ += delta_y;
+  }
+
+  Point Add(const Point& other) const{
+    Point copy = *this;
+    copy.Offset(other.x_, other.y_);
+    return copy;
+  }
+
+  Point Subtract(const Point& other) const {
+    Point copy = *this;
+    copy.Offset(-other.x_, -other.y_);
+    return copy;
+  }
+
+  Point Middle(const Point& other) const {
+    return Point((x_ + other.x_) / 2, (y_ + other.y_) / 2);
+  }
+
+  bool operator==(const Point& rhs) const {
+    return x_ == rhs.x_ && y_ == rhs.y_;
+  }
+
+  bool operator!=(const Point& rhs) const {
+    return !(*this == rhs);
+  }
+
+  // A point is less than another point if its y-value is closer
+  // to the origin. If the y-values are the same, then point with
+  // the x-value closer to the origin is considered less than the
+  // other.
+  // This comparison is required to use Points in sets, or sorted
+  // vectors.
+  bool operator<(const Point& rhs) const {
+    return (y_ == rhs.y_) ? (x_ < rhs.x_) : (y_ < rhs.y_);
+  }
+
+#if defined(OS_WIN)
+  POINT ToPOINT() const;
+#elif defined(OS_MACOSX)
+  CGPoint ToCGPoint() const;
+#endif
+
+  // Returns a string representation of point.
+  std::string ToString() const;
+
+ private:
+  int x_;
+  int y_;
+};
+
+}  // namespace gfx
+
+#endif  // UI_GFX_POINT_H_