1 files changed, 70 insertions, 0 deletions
diff --git a/chromium/ui/gfx/geometry/box_f.cc b/chromium/ui/gfx/geometry/box_f.cc
new file mode 100644
index 00000000000..674bb509c88
--- /dev/null
+++ b/chromium/ui/gfx/geometry/box_f.cc
@@ -0,0 +1,70 @@
+// Copyright 2013 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/box_f.h"
+
+#include <algorithm>
+
+#include "base/logging.h"
+#include "base/strings/stringprintf.h"
+
+namespace gfx {
+
+std::string BoxF::ToString() const {
+  return base::StringPrintf("%s %fx%fx%f",
+                            origin().ToString().c_str(),
+                            width_,
+                            height_,
+                            depth_);
+}
+
+bool BoxF::IsEmpty() const {
+  return (width_ == 0 && height_ == 0) ||
+         (width_ == 0 && depth_ == 0) ||
+         (height_ == 0 && depth_ == 0);
+}
+
+void BoxF::ExpandTo(const Point3F& min, const Point3F& max) {
+  DCHECK_LE(min.x(), max.x());
+  DCHECK_LE(min.y(), max.y());
+  DCHECK_LE(min.z(), max.z());
+
+  float min_x = std::min(x(), min.x());
+  float min_y = std::min(y(), min.y());
+  float min_z = std::min(z(), min.z());
+  float max_x = std::max(right(), max.x());
+  float max_y = std::max(bottom(), max.y());
+  float max_z = std::max(front(), max.z());
+
+  origin_.SetPoint(min_x, min_y, min_z);
+  width_ = max_x - min_x;
+  height_ = max_y - min_y;
+  depth_ = max_z - min_z;
+}
+
+void BoxF::Union(const BoxF& box) {
+  if (IsEmpty()) {
+    *this = box;
+    return;
+  }
+  if (box.IsEmpty())
+    return;
+  ExpandTo(box);
+}
+
+void BoxF::ExpandTo(const Point3F& point) {
+  ExpandTo(point, point);
+}
+
+void BoxF::ExpandTo(const BoxF& box) {
+  ExpandTo(box.origin(), gfx::Point3F(box.right(), box.bottom(), box.front()));
+}
+
+BoxF UnionBoxes(const BoxF& a, const BoxF& b) {
+  BoxF result = a;
+  result.Union(b);
+  return result;
+}
+
+}  // namespace gfx