1 files changed, 81 insertions, 0 deletions
diff --git a/chromium/ui/gfx/rect_conversions.cc b/chromium/ui/gfx/rect_conversions.cc
new file mode 100644
index 00000000000..ac7767b3204
--- /dev/null
+++ b/chromium/ui/gfx/rect_conversions.cc
@@ -0,0 +1,81 @@
+// 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/rect_conversions.h"
+
+#include <cmath>
+
+#include "base/logging.h"
+#include "ui/gfx/safe_integer_conversions.h"
+
+namespace gfx {
+
+Rect ToEnclosingRect(const RectF& rect) {
+  int min_x = ToFlooredInt(rect.x());
+  int min_y = ToFlooredInt(rect.y());
+  float max_x = rect.right();
+  float max_y = rect.bottom();
+  int width = rect.width() == 0 ? 0 : std::max(ToCeiledInt(max_x) - min_x, 0);
+  int height = rect.height() == 0 ? 0 : std::max(ToCeiledInt(max_y) - min_y, 0);
+  return Rect(min_x, min_y, width, height);
+}
+
+Rect ToEnclosedRect(const RectF& rect) {
+  int min_x = ToCeiledInt(rect.x());
+  int min_y = ToCeiledInt(rect.y());
+  float max_x = rect.right();
+  float max_y = rect.bottom();
+  int width = std::max(ToFlooredInt(max_x) - min_x, 0);
+  int height = std::max(ToFlooredInt(max_y) - min_y, 0);
+  return Rect(min_x, min_y, width, height);
+}
+
+Rect ToNearestRect(const RectF& rect) {
+  float float_min_x = rect.x();
+  float float_min_y = rect.y();
+  float float_max_x = rect.right();
+  float float_max_y = rect.bottom();
+
+  int min_x = ToRoundedInt(float_min_x);
+  int min_y = ToRoundedInt(float_min_y);
+  int max_x = ToRoundedInt(float_max_x);
+  int max_y = ToRoundedInt(float_max_y);
+
+  // If these DCHECKs fail, you're using the wrong method, consider using
+  // ToEnclosingRect or ToEnclosedRect instead.
+  DCHECK(std::abs(min_x - float_min_x) < 0.01f);
+  DCHECK(std::abs(min_y - float_min_y) < 0.01f);
+  DCHECK(std::abs(max_x - float_max_x) < 0.01f);
+  DCHECK(std::abs(max_y - float_max_y) < 0.01f);
+
+  return Rect(min_x, min_y, max_x - min_x, max_y - min_y);
+}
+
+bool IsNearestRectWithinDistance(const gfx::RectF& rect, float distance) {
+  float float_min_x = rect.x();
+  float float_min_y = rect.y();
+  float float_max_x = rect.right();
+  float float_max_y = rect.bottom();
+
+  int min_x = ToRoundedInt(float_min_x);
+  int min_y = ToRoundedInt(float_min_y);
+  int max_x = ToRoundedInt(float_max_x);
+  int max_y = ToRoundedInt(float_max_y);
+
+  return
+      (std::abs(min_x - float_min_x) < distance) &&
+      (std::abs(min_y - float_min_y) < distance) &&
+      (std::abs(max_x - float_max_x) < distance) &&
+      (std::abs(max_y - float_max_y) < distance);
+}
+
+Rect ToFlooredRectDeprecated(const RectF& rect) {
+  return Rect(ToFlooredInt(rect.x()),
+              ToFlooredInt(rect.y()),
+              ToFlooredInt(rect.width()),
+              ToFlooredInt(rect.height()));
+}
+
+}  // namespace gfx
+