// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// https://drafts.css-houdini.org/css-paint-api/#paintrenderingcontext2d
[
Exposed=PaintWorklet
] interface PaintRenderingContext2D {
// state
void save(); // push state on state stack
[RaisesException] void restore(); // pop state stack if top state was pushed by save, and restore state
[MeasureAs=Canvas2DLayers, RuntimeEnabled=Canvas2dLayers, CallWith=ScriptState] void beginLayer(); // push state on state stack and creates bitmap for subsequent draw ops
[MeasureAs=Canvas2DLayers, RuntimeEnabled=Canvas2dLayersWithOptions, CallWith=ScriptState, RaisesException] void beginLayer(BeginLayerOptions options); // push state on state stack and creates bitmap for subsequent draw ops
[RuntimeEnabled=Canvas2dLayers, RaisesException] void endLayer(); // pop state stack if top state was pushed by beginLayer, restore state and draw the bitmap
// Clear the canvas and reset the path
void reset();
// transformations (default transform is the identity matrix)
[HighEntropy] void scale(unrestricted double x, unrestricted double y);
[HighEntropy] void rotate(unrestricted double angle);
[HighEntropy] void translate(unrestricted double x, unrestricted double y);
[HighEntropy] void transform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);
void setTransform(unrestricted double a, unrestricted double b, unrestricted double c, unrestricted double d, unrestricted double e, unrestricted double f);
void resetTransform();
[RaisesException] void setTransform(optional DOMMatrixInit transform = {});
DOMMatrix getTransform();
// compositing
attribute unrestricted double globalAlpha; // (default 1.0)
[HighEntropy] attribute DOMString globalCompositeOperation; // (default source-over)
[MeasureAs=Canvas2DFilter, SetterCallWith=ScriptState] attribute (DOMString or CanvasFilter)? filter; // (default 'none')
// image smoothing
attribute boolean imageSmoothingEnabled; // (default True)
[RuntimeEnabled=CanvasImageSmoothing] attribute ImageSmoothingQuality imageSmoothingQuality; // (default "low")
// colors and styles (see also the CanvasDrawingStyles interface)
[HighEntropy, SetterCallWith=Isolate, RaisesException=Setter, GetterCallWith=ScriptState] attribute any strokeStyle; // (default black)
[HighEntropy, SetterCallWith=Isolate, RaisesException=Setter, GetterCallWith=ScriptState] attribute any fillStyle; // (default black)
CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1);
[RaisesException] CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1);
[RaisesException] CanvasPattern? createPattern(CanvasImageSource image, [LegacyNullToEmptyString] DOMString repetitionType);
CanvasGradient createConicGradient(double startAngle, double cx, double cy);
// shadows
[HighEntropy] attribute unrestricted double shadowOffsetX;
[HighEntropy] attribute unrestricted double shadowOffsetY;
[HighEntropy] attribute unrestricted double shadowBlur;
[HighEntropy] attribute DOMString shadowColor;
// rects
[HighEntropy] void clearRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
[HighEntropy] void fillRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
[HighEntropy] void strokeRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
// path API (see also CanvasPath)
[HighEntropy] void beginPath();
[HighEntropy] void fill(optional CanvasFillRule winding);
[HighEntropy] void fill(Path2D path, optional CanvasFillRule winding);
[HighEntropy] void stroke();
[HighEntropy] void stroke(Path2D path);
void clip(optional CanvasFillRule winding);
void clip(Path2D path, optional CanvasFillRule winding);
[HighEntropy, Measure] boolean isPointInPath(unrestricted double x, unrestricted double y, optional CanvasFillRule winding);
[HighEntropy, Measure] boolean isPointInPath(Path2D path, unrestricted double x, unrestricted double y, optional CanvasFillRule winding);
[HighEntropy, Measure] boolean isPointInStroke(unrestricted double x, unrestricted double y);
[HighEntropy, Measure] boolean isPointInStroke(Path2D path, unrestricted double x, unrestricted double y);
// drawing images
[RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y);
[RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height);
[RaisesException] void drawImage(CanvasImageSource image, unrestricted double sx, unrestricted double sy, unrestricted double sw, unrestricted double sh, unrestricted double dx, unrestricted double dy, unrestricted double dw, unrestricted double dh);
// triangle mesh API
[MeasureAs=Canvas2DMesh, RuntimeEnabled=Canvas2dMesh, RaisesException] Mesh2DVertexBuffer createMesh2DVertexBuffer(Float32Array buffer);
[MeasureAs=Canvas2DMesh, RuntimeEnabled=Canvas2dMesh, RaisesException] Mesh2DUVBuffer createMesh2DUVBuffer(Float32Array buffer);
[MeasureAs=Canvas2DMesh, RuntimeEnabled=Canvas2dMesh, RaisesException] Mesh2DIndexBuffer createMesh2DIndexBuffer(Uint16Array buffer);
[MeasureAs=Canvas2DMesh, RuntimeEnabled=Canvas2dMesh, HighEntropy, RaisesException] void drawMesh(Mesh2DVertexBuffer vertex_buffer,
Mesh2DUVBuffer uv_buffer,
Mesh2DIndexBuffer index_buffer,
CanvasImageSource image);
// FIXME: factor out to CanvasDrawingStyles
// line caps/joins
attribute unrestricted double lineWidth; // (default 1)
attribute DOMString lineCap; // "butt", "round", "square" (default "butt")
attribute DOMString lineJoin; // "round", "bevel", "miter" (default "miter")
attribute unrestricted double miterLimit; // (default 10)
// dashed lines
void setLineDash(sequence<unrestricted double> dash);
sequence<unrestricted double> getLineDash();
attribute unrestricted double lineDashOffset;
};
PaintRenderingContext2D includes CanvasPath;
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