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LibGfx: Make Size constexpr-capable

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There is nothing in the `Size` class which cannot be `constexpr`, but
without it being `constexpr` it prevents other things from being
`constexpr`-capable.
This commit is contained in:
Lenny Maiorani 2022-02-26 17:49:06 -07:00 • committed by Linus Groh
parent 219e3b9235
commit dc518404ce
1 changed files with 30 additions and 30 deletions
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60
Userland/Libraries/LibGfx/Size.h
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@ -16,71 +16,71 @@ namespace Gfx {
template<typename T> template<typename T>
class Size { class Size {
public: public:
Size() = default; constexpr Size() = default;
Size(T w, T h) constexpr Size(T w, T h)
: m_width(w) : m_width(w)
, m_height(h) , m_height(h)
{ {
} }
template<typename U> template<typename U>
Size(U width, U height) constexpr Size(U width, U height)
: m_width(width) : m_width(width)
, m_height(height) , m_height(height)
{ {
} }
template<typename U> template<typename U>
explicit Size(Size<U> const& other) explicit constexpr Size(Size<U> const& other)
: m_width(other.width()) : m_width(other.width())
, m_height(other.height()) , m_height(other.height())
{ {
} }
[[nodiscard]] ALWAYS_INLINE T width() const { return m_width; } [[nodiscard]] ALWAYS_INLINE constexpr T width() const { return m_width; }
[[nodiscard]] ALWAYS_INLINE T height() const { return m_height; } [[nodiscard]] ALWAYS_INLINE constexpr T height() const { return m_height; }
[[nodiscard]] ALWAYS_INLINE T area() const { return width() * height(); } [[nodiscard]] ALWAYS_INLINE constexpr T area() const { return width() * height(); }
ALWAYS_INLINE void set_width(T w) { m_width = w; } ALWAYS_INLINE constexpr void set_width(T w) { m_width = w; }
ALWAYS_INLINE void set_height(T h) { m_height = h; } ALWAYS_INLINE constexpr void set_height(T h) { m_height = h; }
[[nodiscard]] ALWAYS_INLINE bool is_null() const { return !m_width && !m_height; } [[nodiscard]] ALWAYS_INLINE constexpr bool is_null() const { return !m_width && !m_height; }
[[nodiscard]] ALWAYS_INLINE bool is_empty() const { return m_width <= 0 || m_height <= 0; } [[nodiscard]] ALWAYS_INLINE constexpr bool is_empty() const { return m_width <= 0 || m_height <= 0; }
void scale_by(T dx, T dy) constexpr void scale_by(T dx, T dy)
{ {
m_width *= dx; m_width *= dx;
m_height *= dy; m_height *= dy;
} }
void transform_by(AffineTransform const& transform) { *this = transform.map(*this); } constexpr void transform_by(AffineTransform const& transform) { *this = transform.map(*this); }
ALWAYS_INLINE void scale_by(T dboth) { scale_by(dboth, dboth); } ALWAYS_INLINE constexpr void scale_by(T dboth) { scale_by(dboth, dboth); }
ALWAYS_INLINE void scale_by(Point<T> const& s) { scale_by(s.x(), s.y()); } ALWAYS_INLINE constexpr void scale_by(Point<T> const& s) { scale_by(s.x(), s.y()); }
[[nodiscard]] Size scaled_by(T dx, T dy) const [[nodiscard]] constexpr Size scaled_by(T dx, T dy) const
{ {
Size<T> size = *this; Size<T> size = *this;
size.scale_by(dx, dy); size.scale_by(dx, dy);
return size; return size;
} }
[[nodiscard]] Size scaled_by(T dboth) const [[nodiscard]] constexpr Size scaled_by(T dboth) const
{ {
Size<T> size = *this; Size<T> size = *this;
size.scale_by(dboth); size.scale_by(dboth);
return size; return size;
} }
[[nodiscard]] Size scaled_by(Point<T> const& s) const [[nodiscard]] constexpr Size scaled_by(Point<T> const& s) const
{ {
Size<T> size = *this; Size<T> size = *this;
size.scale_by(s); size.scale_by(s);
return size; return size;
} }
[[nodiscard]] Size transformed_by(AffineTransform const& transform) const [[nodiscard]] constexpr Size transformed_by(AffineTransform const& transform) const
{ {
Size<T> size = *this; Size<T> size = *this;
size.transform_by(transform); size.transform_by(transform);
@ -88,24 +88,24 @@ public:
} }
template<typename U> template<typename U>
[[nodiscard]] bool contains(Size<U> const& other) const [[nodiscard]] constexpr bool contains(Size<U> const& other) const
{ {
return other.m_width <= m_width && other.m_height <= m_height; return other.m_width <= m_width && other.m_height <= m_height;
} }
template<class U> template<class U>
[[nodiscard]] bool operator==(Size<U> const& other) const [[nodiscard]] constexpr bool operator==(Size<U> const& other) const
{ {
return width() == other.width() && height() == other.height(); return width() == other.width() && height() == other.height();
} }
template<class U> template<class U>
[[nodiscard]] bool operator!=(Size<U> const& other) const [[nodiscard]] constexpr bool operator!=(Size<U> const& other) const
{ {
return !(*this == other); return !(*this == other);
} }
Size<T>& operator-=(Size<T> const& other) constexpr Size<T>& operator-=(Size<T> const& other)
{ {
m_width -= other.m_width; m_width -= other.m_width;
m_height -= other.m_height; m_height -= other.m_height;
@ -119,21 +119,21 @@ public:
return *this; return *this;
} }
[[nodiscard]] Size<T> operator*(T factor) const { return { m_width * factor, m_height * factor }; } [[nodiscard]] constexpr Size<T> operator*(T factor) const { return { m_width * factor, m_height * factor }; }
Size<T>& operator*=(T factor) constexpr Size<T>& operator*=(T factor)
{ {
m_width *= factor; m_width *= factor;
m_height *= factor; m_height *= factor;
return *this; return *this;
} }
[[nodiscard]] T primary_size_for_orientation(Orientation orientation) const [[nodiscard]] constexpr T primary_size_for_orientation(Orientation orientation) const
{ {
return orientation == Orientation::Vertical ? height() : width(); return orientation == Orientation::Vertical ? height() : width();
} }
void set_primary_size_for_orientation(Orientation orientation, T value) constexpr void set_primary_size_for_orientation(Orientation orientation, T value)
{ {
if (orientation == Orientation::Vertical) { if (orientation == Orientation::Vertical) {
set_height(value); set_height(value);
@ -142,12 +142,12 @@ public:
} }
} }
[[nodiscard]] T secondary_size_for_orientation(Orientation orientation) const [[nodiscard]] constexpr T secondary_size_for_orientation(Orientation orientation) const
{ {
return orientation == Orientation::Vertical ? width() : height(); return orientation == Orientation::Vertical ? width() : height();
} }
void set_secondary_size_for_orientation(Orientation orientation, T value) constexpr void set_secondary_size_for_orientation(Orientation orientation, T value)
{ {
if (orientation == Orientation::Vertical) { if (orientation == Orientation::Vertical) {
set_width(value); set_width(value);
@ -157,7 +157,7 @@ public:
} }
template<typename U> template<typename U>
[[nodiscard]] ALWAYS_INLINE Size<U> to_type() const [[nodiscard]] ALWAYS_INLINE constexpr Size<U> to_type() const
{ {
return Size<U>(*this); return Size<U>(*this);
} }