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71 lines
1.7 KiB
71 lines
1.7 KiB
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "ui/gfx/geometry/box_f.h"
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#include <algorithm>
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#include "base/logging.h"
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#include "base/strings/stringprintf.h"
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namespace gfx {
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std::string BoxF::ToString() const {
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return base::StringPrintf("%s %fx%fx%f",
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origin().ToString().c_str(),
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width_,
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height_,
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depth_);
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}
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bool BoxF::IsEmpty() const {
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return (width_ == 0 && height_ == 0) ||
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(width_ == 0 && depth_ == 0) ||
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(height_ == 0 && depth_ == 0);
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}
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void BoxF::ExpandTo(const Point3F& min, const Point3F& max) {
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DCHECK_LE(min.x(), max.x());
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DCHECK_LE(min.y(), max.y());
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DCHECK_LE(min.z(), max.z());
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float min_x = std::min(x(), min.x());
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float min_y = std::min(y(), min.y());
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float min_z = std::min(z(), min.z());
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float max_x = std::max(right(), max.x());
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float max_y = std::max(bottom(), max.y());
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float max_z = std::max(front(), max.z());
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origin_.SetPoint(min_x, min_y, min_z);
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width_ = max_x - min_x;
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height_ = max_y - min_y;
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depth_ = max_z - min_z;
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}
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void BoxF::Union(const BoxF& box) {
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if (IsEmpty()) {
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*this = box;
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return;
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}
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if (box.IsEmpty())
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return;
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ExpandTo(box);
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}
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void BoxF::ExpandTo(const Point3F& point) {
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ExpandTo(point, point);
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}
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void BoxF::ExpandTo(const BoxF& box) {
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ExpandTo(box.origin(), gfx::Point3F(box.right(), box.bottom(), box.front()));
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}
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BoxF UnionBoxes(const BoxF& a, const BoxF& b) {
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BoxF result = a;
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result.Union(b);
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return result;
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}
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} // namespace gfx
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