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LibGfx: Add some helper methods to AffineTransform

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Also makes some basic getters ALWAYS_INLINE and [[nodiscard]], as well
as fixing as error with the map method.
This commit is contained in:
Matthew Olsson 2021-04-12 11:20:55 -07:00 • committed by Andreas Kling
parent f5c676fd86
commit ac238b3bd6
2 changed files with 90 additions and 12 deletions
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35
Userland/Libraries/LibGfx/AffineTransform.h
View file

@ -6,6 +6,7 @@
#pragma once
#include <AK/Format.h>
#include <AK/Forward.h>
#include <LibGfx/Forward.h>
@ -36,18 +37,28 @@ public:
template<typename T>
Rect<T> map(const Rect<T>&) const;
float a() const { return m_values[0]; }
float b() const { return m_values[1]; }
float c() const { return m_values[2]; }
float d() const { return m_values[3]; }
float e() const { return m_values[4]; }
float f() const { return m_values[5]; }
[[nodiscard]] ALWAYS_INLINE float a() const { return m_values[0]; }
[[nodiscard]] ALWAYS_INLINE float b() const { return m_values[1]; }
[[nodiscard]] ALWAYS_INLINE float c() const { return m_values[2]; }
[[nodiscard]] ALWAYS_INLINE float d() const { return m_values[3]; }
[[nodiscard]] ALWAYS_INLINE float e() const { return m_values[4]; }
[[nodiscard]] ALWAYS_INLINE float f() const { return m_values[5]; }
float x_scale() const;
float y_scale() const;
[[nodiscard]] float x_scale() const;
[[nodiscard]] float y_scale() const;
[[nodiscard]] FloatPoint scale() const;
[[nodiscard]] float x_translation() const;
[[nodiscard]] float y_translation() const;
[[nodiscard]] FloatPoint translation() const;
AffineTransform& scale(float sx, float sy);
AffineTransform& scale(const FloatPoint& s);
AffineTransform& set_scale(float sx, float sy);
AffineTransform& set_scale(const FloatPoint& s);
AffineTransform& translate(float tx, float ty);
AffineTransform& translate(const FloatPoint& t);
AffineTransform& set_translation(float tx, float ty);
AffineTransform& set_translation(const FloatPoint& t);
AffineTransform& rotate_radians(float);
AffineTransform& multiply(const AffineTransform&);
@ -56,3 +67,11 @@ private:
};
}
template<>
struct AK::Formatter<Gfx::AffineTransform> : Formatter<FormatString> {
void format(FormatBuilder& builder, Gfx::AffineTransform value)
{
return Formatter<FormatString>::format(builder, "[{} {} {} {} {} {}]", value.a(), value.b(), value.c(), value.d(), value.e(), value.f());
}
};