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// 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
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