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// 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/views/rect_based_targeting_utils.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/rect.h"
namespace views {
bool UsePointBasedTargeting(const gfx::Rect& rect) {
return rect.width() == 1 && rect.height() == 1;
}
float PercentCoveredBy(const gfx::Rect& rect_1, const gfx::Rect& rect_2) {
gfx::Rect intersection(rect_1);
intersection.Intersect(rect_2);
int intersect_area = intersection.size().GetArea();
int rect_1_area = rect_1.size().GetArea();
return rect_1_area ?
static_cast<float>(intersect_area) / static_cast<float>(rect_1_area) : 0;
}
int DistanceSquaredFromCenterToPoint(const gfx::Point& point,
const gfx::Rect& rect) {
gfx::Point center_point = rect.CenterPoint();
int dx = center_point.x() - point.x();
int dy = center_point.y() - point.y();
return (dx * dx) + (dy * dy);
}
} // namespace views
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