diff --git a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp index e19173c06e..95718a73be 100644 --- a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp +++ b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp @@ -705,6 +705,20 @@ void CanvasRenderingContext2D::transform(double a, double b, double c, double d, m_drawing_state.transform.multiply({ static_cast(a), static_cast(b), static_cast(c), static_cast(d), static_cast(e), static_cast(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 DOM::ExceptionOr check_usability_of_image(CanvasImageSource const& image) { diff --git a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h index a965ec9121..f00eca01c2 100644 --- a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h +++ b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.h @@ -99,6 +99,7 @@ public: NonnullRefPtr 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 set_transform(double a, double b, double c, double d, double e, double f); private: explicit CanvasRenderingContext2D(HTMLCanvasElement&); diff --git a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl index 6f64ad7dd2..36cebe7f05 100644 --- a/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl +++ b/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl @@ -57,5 +57,6 @@ interface CanvasRenderingContext2D { // FIXME: All these `double`s should be `unrestricted double` 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); };