| // 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.origin().x()); |
| int min_y = ToFlooredInt(rect.origin().y()); |
| float max_x = rect.origin().x() + rect.size().width(); |
| float max_y = rect.origin().y() + rect.size().height(); |
| int width = std::max(ToCeiledInt(max_x) - min_x, 0); |
| int height = 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.origin().x()); |
| int min_y = ToCeiledInt(rect.origin().y()); |
| float max_x = rect.origin().x() + rect.size().width(); |
| float max_y = rect.origin().y() + rect.size().height(); |
| 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.origin().x(); |
| float float_min_y = rect.origin().y(); |
| float float_max_x = float_min_x + rect.size().width(); |
| float float_max_y = float_min_y + rect.size().height(); |
| |
| 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); |
| } |
| |
| Rect ToFlooredRectDeprecated(const RectF& rect) { |
| return Rect(ToFlooredInt(rect.origin().x()), |
| ToFlooredInt(rect.origin().y()), |
| ToFlooredInt(rect.size().width()), |
| ToFlooredInt(rect.size().height())); |
| } |
| |
| } // namespace gfx |
| |