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LibGfx: Teach AffineTransform how to rotate and multiply

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This commit is contained in:
Andreas Kling 2020-06-26 18:23:38 +02:00
parent ba76a72422
commit dc22e59a1a
2 changed files with 29 additions and 0 deletions
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7
Libraries/LibGfx/AffineTransform.h
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@ -39,6 +39,11 @@ public:
{
}
AffineTransform(float a, float b, float c, float d, float e, float f)
: m_values { a, b, c, d, e, f }
{
}
bool is_identity() const;
void map(float unmapped_x, float unmapped_y, float& mapped_x, float& mapped_y) const;
@ -64,6 +69,8 @@ public:
AffineTransform& scale(float sx, float sy);
AffineTransform& translate(float tx, float ty);
AffineTransform& rotate_radians(float);
AffineTransform& multiply(const AffineTransform&);
private:
float m_values[6] { 0 };