RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 02:47:34 +00:00
Code Issues Activity Actions

LibWeb: Implement CanvasRenderingContext2D.setTransform

Browse source
This commit is contained in:
Luke Wilde 2022-04-10 18:46:30 +01:00 • committed by Andreas Kling
parent df7a83ac0e
commit 329e740c85
3 changed files with 16 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp
View file

@ -705,6 +705,20 @@ void CanvasRenderingContext2D::transform(double a, double b, double c, double d,
m_drawing_state.transform.multiply({ static_cast<float>(a), static_cast<float>(b), static_cast<float>(c), static_cast<float>(d), static_cast<float>(e), static_cast<float>(f) }); m_drawing_state.transform.multiply({ static_cast<float>(a), static_cast<float>(b), static_cast<float>(c), static_cast<float>(d), static_cast<float>(e), static_cast<float>(f) });
} }
// https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-settransform
void CanvasRenderingContext2D::set_transform(double a, double b, double c, double d, double e, double f)
{
// 1. If any of the arguments are infinite or NaN, then return.
if (!isfinite(a) || !isfinite(b) || !isfinite(c) || !isfinite(d) || !isfinite(e) || !isfinite(f))
return;
// 2. Reset the current transformation matrix to the identity matrix.
m_drawing_state.transform = {};
// 3. Invoke the transform(a, b, c, d, e, f) method with the same arguments.
transform(a, b, c, d, e, f);
}
// https://html.spec.whatwg.org/multipage/canvas.html#check-the-usability-of-the-image-argument // https://html.spec.whatwg.org/multipage/canvas.html#check-the-usability-of-the-image-argument
DOM::ExceptionOr<CanvasImageSourceUsability> check_usability_of_image(CanvasImageSource const& image) DOM::ExceptionOr<CanvasImageSourceUsability> check_usability_of_image(CanvasImageSource const& image)
{ {

1
Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h
View file

@ -99,6 +99,7 @@ public:
NonnullRefPtr<CanvasGradient> create_conic_gradient(double start_angle, double x, double y); NonnullRefPtr<CanvasGradient> create_conic_gradient(double start_angle, double x, double y);
void transform(double a, double b, double c, double d, double e, double f); void transform(double a, double b, double c, double d, double e, double f);
void set_transform(double a, double b, double c, double d, double e, double f);
private: private:
explicit CanvasRenderingContext2D(HTMLCanvasElement&); explicit CanvasRenderingContext2D(HTMLCanvasElement&);

1
Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl
View file

@ -57,5 +57,6 @@ interface CanvasRenderingContext2D {
// FIXME: All these `double`s should be `unrestricted double` // FIXME: All these `double`s should be `unrestricted double`
undefined transform(double a, double b, double c, double d, double e, double f); undefined transform(double a, double b, double c, double d, double e, double f);
undefined setTransform(double a, double b, double c, double d, double e, double f);
}; };