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box.cpp
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// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.
#include "ftxui/screen/box.hpp"
#include <algorithm>
namespace ftxui {
/// @return the biggest Box contained in both |a| and |b|.
/// @ingroup screen
// static
Box Box::Intersection(Box a, Box b) {
return Box{
std::max(a.x_min, b.x_min),
std::min(a.x_max, b.x_max),
std::max(a.y_min, b.y_min),
std::min(a.y_max, b.y_max),
};
}
/// @return the smallest Box containing both |a| and |b|.
/// @ingroup screen
// static
Box Box::Union(Box a, Box b) {
return Box{
std::min(a.x_min, b.x_min),
std::max(a.x_max, b.x_max),
std::min(a.y_min, b.y_min),
std::max(a.y_max, b.y_max),
};
}
/// Shift the box by (x,y).
/// @param x horizontal shift.
/// @param y vertical shift.
/// @ingroup screen
void Box::Shift(int x, int y) {
x_min += x;
x_max += x;
y_min += y;
y_max += y;
}
/// @return whether (x,y) is contained inside the box.
/// @ingroup screen
bool Box::Contain(int x, int y) const {
return x_min <= x && //
x_max >= x && //
y_min <= y && //
y_max >= y;
}
/// @return whether the box is empty.
/// @ingroup screen
bool Box::IsEmpty() const {
return x_min > x_max || y_min > y_max;
}
/// @return whether |other| is the same as |this|
/// @ingroup screen
bool Box::operator==(const Box& other) const {
return (x_min == other.x_min) && (x_max == other.x_max) &&
(y_min == other.y_min) && (y_max == other.y_max);
}
/// @return whether |other| and |this| are different.
/// @ingroup screen
bool Box::operator!=(const Box& other) const {
return !operator==(other);
}
} // namespace ftxui
box.hpp
ftxui
Definition animation.hpp:10
ftxui::Box
Definition box.hpp:9
ftxui::Box::operator!=
bool operator!=(const Box &other) const
Definition box.cpp:68
ftxui::Box::Contain
bool Contain(int x, int y) const
Definition box.cpp:46
ftxui::Box::Shift
void Shift(int x, int y)
Definition box.cpp:37
ftxui::Box::x_max
int x_max
Definition box.hpp:11
ftxui::Box::y_min
int y_min
Definition box.hpp:12
ftxui::Box::Intersection
static auto Intersection(Box a, Box b) -> Box
Definition box.cpp:12
ftxui::Box::IsEmpty
bool IsEmpty() const
Definition box.cpp:55
ftxui::Box::y_max
int y_max
Definition box.hpp:13
ftxui::Box::operator==
bool operator==(const Box &other) const
Definition box.cpp:61
ftxui::Box::Union
static auto Union(Box a, Box b) -> Box
Definition box.cpp:24
ftxui::Box::x_min
int x_min
Definition box.hpp:10