80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
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/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/desktop_capture/desktop_geometry.h"
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#include <algorithm>
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#include <cmath>
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namespace webrtc {
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bool DesktopRect::Contains(const DesktopVector& point) const {
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return point.x() >= left() && point.x() < right() && point.y() >= top() &&
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point.y() < bottom();
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}
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bool DesktopRect::ContainsRect(const DesktopRect& rect) const {
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return rect.left() >= left() && rect.right() <= right() &&
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rect.top() >= top() && rect.bottom() <= bottom();
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}
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void DesktopRect::IntersectWith(const DesktopRect& rect) {
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left_ = std::max(left(), rect.left());
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top_ = std::max(top(), rect.top());
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right_ = std::min(right(), rect.right());
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bottom_ = std::min(bottom(), rect.bottom());
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if (is_empty()) {
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left_ = 0;
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top_ = 0;
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right_ = 0;
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bottom_ = 0;
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}
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}
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void DesktopRect::UnionWith(const DesktopRect& rect) {
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if (is_empty()) {
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*this = rect;
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return;
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}
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if (rect.is_empty()) {
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return;
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}
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left_ = std::min(left(), rect.left());
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top_ = std::min(top(), rect.top());
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right_ = std::max(right(), rect.right());
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bottom_ = std::max(bottom(), rect.bottom());
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}
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void DesktopRect::Translate(int32_t dx, int32_t dy) {
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left_ += dx;
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top_ += dy;
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right_ += dx;
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bottom_ += dy;
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}
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void DesktopRect::Extend(int32_t left_offset,
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int32_t top_offset,
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int32_t right_offset,
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int32_t bottom_offset) {
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left_ -= left_offset;
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top_ -= top_offset;
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right_ += right_offset;
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bottom_ += bottom_offset;
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}
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void DesktopRect::Scale(double horizontal, double vertical) {
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right_ += static_cast<int>(std::round(width() * (horizontal - 1)));
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bottom_ += static_cast<int>(std::round(height() * (vertical - 1)));
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}
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} // namespace webrtc
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