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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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