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serenity/Userland/Libraries/LibWeb/HTML/CanvasRenderingContext2D.idl
Nico Weber c30188cd6a LibWeb: Hook up canvas lineCap and plumb it to LibGfx
To rebaseline image test expecatations, I ran:

    out/gn/Ladybird.app/Contents/MacOS/headless-browser \
        --resources $PWD/out/gn/Ladybird.app/Contents/Resources \
        --dump-failed-ref-tests \
        --run-tests $PWD/Tests/LibWeb \
        --filter 'canvas-*'

I then copied over the new baselines with

    D=Tests/LibWeb/Ref/reference/images
    cp test-dumps/canvas-implict-moves-and-lines.png \
        $D/canvas-implict-moves-and-lines-ref.png

(Note: No `-ref` suffix on first path, yes suffix on second path.)

We currently don't track if a path is open or closed, and paint
butt linecaps at the end of closed paths too. We did that with
round linecaps as well, but there that wasn't visible. This makes
closed paths look a bit weird now; we'll have to fix this in a
follow-up. In a way, this just exposes another not-yet-implemented
feature.
2024-09-27 15:05:30 -04:00

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#import <HTML/HTMLCanvasElement.idl>
#import <HTML/Canvas/CanvasCompositing.idl>
#import <HTML/Canvas/CanvasDrawImage.idl>
#import <HTML/Canvas/CanvasDrawPath.idl>
#import <HTML/Canvas/CanvasFillStrokeStyles.idl>
#import <HTML/Canvas/CanvasImageData.idl>
#import <HTML/Canvas/CanvasImageSmoothing.idl>
#import <HTML/Canvas/CanvasPath.idl>
#import <HTML/Canvas/CanvasPathDrawingStyles.idl>
#import <HTML/Canvas/CanvasTextDrawingStyles.idl>
#import <HTML/Canvas/CanvasRect.idl>
#import <HTML/Canvas/CanvasState.idl>
#import <HTML/Canvas/CanvasText.idl>
#import <HTML/Canvas/CanvasTransform.idl>
enum ImageSmoothingQuality { "low", "medium", "high" };
// FIXME: This should be in CanvasPathDrawingStyles.idl but then it is not exported
enum CanvasLineCap { "butt", "round", "square" };
enum CanvasLineJoin { "round", "bevel", "miter" };
// FIXME: This should be in CanvasTextDrawingStyles.idl but then it is not exported
enum CanvasTextAlign { "start", "end", "left", "right", "center" };
enum CanvasTextBaseline { "top", "hanging", "middle", "alphabetic", "ideographic", "bottom" };
// https://html.spec.whatwg.org/multipage/canvas.html#canvasrenderingcontext2d
[Exposed=Window]
interface CanvasRenderingContext2D {
[ImplementedAs=canvas_for_binding] readonly attribute HTMLCanvasElement canvas;
};
CanvasRenderingContext2D includes CanvasState;
CanvasRenderingContext2D includes CanvasTransform;
CanvasRenderingContext2D includes CanvasCompositing;
CanvasRenderingContext2D includes CanvasImageSmoothing;
CanvasRenderingContext2D includes CanvasFillStrokeStyles;
// FIXME: CanvasRenderingContext2D includes CanvasShadowStyles;
// FIXME: CanvasRenderingContext2D includes CanvasFilters;
CanvasRenderingContext2D includes CanvasRect;
CanvasRenderingContext2D includes CanvasDrawPath;
// FIXME: CanvasRenderingContext2D includes CanvasUserInterface;
CanvasRenderingContext2D includes CanvasText;
CanvasRenderingContext2D includes CanvasDrawImage;
CanvasRenderingContext2D includes CanvasImageData;
CanvasRenderingContext2D includes CanvasPathDrawingStyles;
CanvasRenderingContext2D includes CanvasTextDrawingStyles;
CanvasRenderingContext2D includes CanvasPath;