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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/gfx/geometry/box_f.h"
- #include <algorithm>
- #include "base/check_op.h"
- #include "base/strings/stringprintf.h"
- namespace gfx {
- std::string BoxF::ToString() const {
- return base::StringPrintf("%s %fx%fx%f",
- origin().ToString().c_str(),
- width_,
- height_,
- depth_);
- }
- bool BoxF::IsEmpty() const {
- return (width_ == 0 && height_ == 0) ||
- (width_ == 0 && depth_ == 0) ||
- (height_ == 0 && depth_ == 0);
- }
- void BoxF::ExpandTo(const Point3F& min, const Point3F& max) {
- DCHECK_LE(min.x(), max.x());
- DCHECK_LE(min.y(), max.y());
- DCHECK_LE(min.z(), max.z());
- float min_x = std::min(x(), min.x());
- float min_y = std::min(y(), min.y());
- float min_z = std::min(z(), min.z());
- float max_x = std::max(right(), max.x());
- float max_y = std::max(bottom(), max.y());
- float max_z = std::max(front(), max.z());
- origin_.SetPoint(min_x, min_y, min_z);
- width_ = max_x - min_x;
- height_ = max_y - min_y;
- depth_ = max_z - min_z;
- }
- void BoxF::Union(const BoxF& box) {
- if (IsEmpty()) {
- *this = box;
- return;
- }
- if (box.IsEmpty())
- return;
- ExpandTo(box);
- }
- void BoxF::ExpandTo(const Point3F& point) {
- ExpandTo(point, point);
- }
- void BoxF::ExpandTo(const BoxF& box) {
- ExpandTo(box.origin(), gfx::Point3F(box.right(), box.bottom(), box.front()));
- }
- BoxF UnionBoxes(const BoxF& a, const BoxF& b) {
- BoxF result = a;
- result.Union(b);
- return result;
- }
- } // namespace gfx
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