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#pragma once
#include "pre.hpp"
#include <optional>
namespace cru::ui {
struct Point final {
constexpr static Point Zero() { return Point(0, 0); }
constexpr Point() = default;
constexpr Point(const float x, const float y) : x(x), y(y) {}
float x = 0;
float y = 0;
};
constexpr bool operator==(const Point& left, const Point& right) {
return left.x == right.x && left.y == right.y;
}
constexpr bool operator!=(const Point& left, const Point& right) {
return !(left == right);
}
struct Size final {
constexpr static Size Zero() { return Size(0, 0); }
constexpr Size() = default;
constexpr Size(const float width, const float height)
: width(width), height(height) {}
float width = 0;
float height = 0;
};
constexpr Size operator+(const Size& left, const Size& right) {
return Size(left.width + right.width, left.height + right.height);
}
constexpr Size operator-(const Size& left, const Size& right) {
return Size(left.width - right.width, left.height - right.height);
}
constexpr bool operator==(const Size& left, const Size& right) {
return left.width == right.width && left.height == right.height;
}
constexpr bool operator!=(const Size& left, const Size& right) {
return !(left == right);
}
struct Thickness final {
constexpr static Thickness Zero() { return Thickness(0); }
constexpr Thickness() : Thickness(0) {}
constexpr explicit Thickness(const float width)
: left(width), top(width), right(width), bottom(width) {}
constexpr explicit Thickness(const float horizontal, const float vertical)
: left(horizontal), top(vertical), right(horizontal), bottom(vertical) {}
constexpr Thickness(const float left, const float top, const float right,
const float bottom)
: left(left), top(top), right(right), bottom(bottom) {}
float GetHorizontalTotal() const { return left + right; }
float GetVerticalTotal() const { return top + bottom; }
void SetLeftRight(const float value) { left = right = value; }
void SetTopBottom(const float value) { top = bottom = value; }
void SetAll(const float value) { left = top = right = bottom = value; }
float Validate() const {
return left >= 0.0 && top >= 0.0 && right >= 0.0 && bottom >= 0.0;
}
float left;
float top;
float right;
float bottom;
};
constexpr bool operator==(const Thickness& left, const Thickness& right) {
return left.left == right.left && left.top == right.top &&
left.right == right.right && left.bottom == right.bottom;
}
constexpr bool operator!=(const Thickness& left, const Thickness& right) {
return !(left == right);
}
struct Rect final {
constexpr Rect() = default;
constexpr Rect(const float left, const float top, const float width,
const float height)
: left(left), top(top), width(width), height(height) {}
constexpr Rect(const Point& lefttop, const Size& size)
: left(lefttop.x),
top(lefttop.y),
width(size.width),
height(size.height) {}
constexpr static Rect FromVertices(const float left, const float top,
const float right, const float bottom) {
return Rect(left, top, right - left, bottom - top);
}
constexpr static Rect FromCenter(const Point& center, const float width,
const float height) {
return Rect(center.x - width / 2.0f, center.y - height / 2.0f, width,
height);
}
constexpr float GetRight() const { return left + width; }
constexpr float GetBottom() const { return top + height; }
constexpr Point GetLeftTop() const { return Point(left, top); }
constexpr Point GetRightBottom() const {
return Point(left + width, top + height);
}
constexpr Point GetLeftBottom() const { return Point(left, top + height); }
constexpr Point GetRightTop() const { return Point(left + width, top); }
constexpr Point GetCenter() const {
return Point(left + width / 2.0f, top + height / 2.0f);
}
constexpr Size GetSize() const { return Size(width, height); }
constexpr Rect Shrink(const Thickness& thickness) const {
return Rect(left + thickness.left, top + thickness.top,
width - thickness.GetHorizontalTotal(),
height - thickness.GetVerticalTotal());
}
constexpr bool IsPointInside(const Point& point) const {
return point.x >= left && point.x < GetRight() && point.y >= top &&
point.y < GetBottom();
}
float left = 0.0f;
float top = 0.0f;
float width = 0.0f;
float height = 0.0f;
};
constexpr bool operator==(const Rect& left, const Rect& right) {
return left.left == right.left && left.top == right.top &&
left.width == right.width && left.height == right.height;
}
constexpr bool operator!=(const Rect& left, const Rect& right) {
return !(left == right);
}
struct RoundedRect final {
constexpr RoundedRect() = default;
constexpr RoundedRect(const Rect& rect, const float radius_x,
const float radius_y)
: rect(rect), radius_x(radius_x), radius_y(radius_y) {}
Rect rect{};
float radius_x = 0.0f;
float radius_y = 0.0f;
};
constexpr bool operator==(const RoundedRect& left, const RoundedRect& right) {
return left.rect == right.rect && left.radius_x == right.radius_x &&
left.radius_y == right.radius_y;
}
constexpr bool operator!=(const RoundedRect& left, const RoundedRect& right) {
return !(left == right);
}
struct Ellipse final {
constexpr Ellipse() = default;
constexpr Ellipse(const Point& center, const float radius_x,
const float radius_y)
: center(center), radius_x(radius_x), radius_y(radius_y) {}
constexpr static Ellipse FromRect(const Rect& rect) {
return Ellipse(rect.GetCenter(), rect.width / 2.0f, rect.height / 2.0f);
}
constexpr Rect GetBoundRect() const {
return Rect::FromCenter(center, radius_x * 2.0f, radius_y * 2.0f);
}
Point center{};
float radius_x = 0.0f;
float radius_y = 0.0f;
};
constexpr bool operator==(const Ellipse& left, const Ellipse& right) {
return left.center == right.center && left.radius_x == right.radius_x &&
left.radius_y == right.radius_y;
}
constexpr bool operator!=(const Ellipse& left, const Ellipse& right) {
return !(left == right);
}
struct TextRange final {
constexpr static std::optional<TextRange> FromTwoSides(unsigned first,
unsigned second) {
if (first > second)
return std::make_optional<TextRange>(second, first - second);
if (first < second)
return std::make_optional<TextRange>(first, second - first);
return std::nullopt;
}
constexpr static std::pair<unsigned, unsigned> ToTwoSides(
std::optional<TextRange> text_range, unsigned default_position = 0) {
if (text_range.has_value())
return std::make_pair(
text_range.value().position,
text_range.value().position + text_range.value().count);
return std::make_pair(default_position, default_position);
}
constexpr TextRange() = default;
constexpr TextRange(const unsigned position, const unsigned count)
: position(position), count(count) {}
unsigned position = 0;
unsigned count = 0;
};
} // namespace cru::ui
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