Source/WebCore/html/canvas/CanvasTransform.idl

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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// https://html.spec.whatwg.org/multipage/canvas.html#canvastransform
interface mixin CanvasTransform {
    // transformations (default transform is the identity matrix)
    undefined scale(unrestricted double x, unrestricted double y);
    undefined rotate(unrestricted double angle);
    undefined translate(unrestricted double x, unrestricted double y);
    undefined transform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);

    [NewObject] DOMMatrix getTransform();
    undefined setTransform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);
    undefined setTransform(optional DOMMatrix2DInit transform);
    undefined resetTransform();
};