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Bug 1864039 - clip-path path reference box is incorrect with stroke r=boris

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Differential Revision: https://phabricator.services.mozilla.com/D193643
This commit is contained in:
Robert Longson 2023-11-15 19:27:43 +00:00
parent 6e4a680240
commit 1b18e7f21f
5 changed files with 19 additions and 19 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
dom/svg/SVGPathData.cpp
View file

@ -582,7 +582,8 @@ already_AddRefed<Path> SVGPathData::BuildPathForMeasuring(
/* static */
already_AddRefed<Path> SVGPathData::BuildPath(
Span<const StylePathCommand> aPath, PathBuilder* aBuilder,
StyleStrokeLinecap aStrokeLineCap, Float aStrokeWidth, float aZoomFactor) {
StyleStrokeLinecap aStrokeLineCap, Float aStrokeWidth, const Point& aOffset,
float aZoomFactor) {
if (aPath.IsEmpty() || !aPath[0].IsMoveTo()) {
return nullptr; // paths without an initial moveto are invalid
}
@ -599,8 +600,8 @@ already_AddRefed<Path> SVGPathData::BuildPath(
Point cp1, cp2; // previous bezier's control points
Point tcp1, tcp2; // temporaries
auto scale = [aZoomFactor](const Point& p) {
return Point(p.x * aZoomFactor, p.y * aZoomFactor);
auto scale = [aOffset, aZoomFactor](const Point& p) {
return Point(p.x * aZoomFactor, p.y * aZoomFactor) + aOffset;
};
// Regarding cp1 and cp2: If the previous segment was a cubic bezier curve,

9
dom/svg/SVGPathData.h
View file

@ -194,11 +194,10 @@ class SVGPathData {
* which is generated by cbindgen from Rust (see ServoStyleConsts.h).
* Basically, this is a variant of the above BuildPath() functions.
*/
static already_AddRefed<Path> BuildPath(Span<const StylePathCommand> aPath,
PathBuilder* aBuilder,
StyleStrokeLinecap aStrokeLineCap,
Float aStrokeWidth,
float aZoomFactor = 1.0);
static already_AddRefed<Path> BuildPath(
Span<const StylePathCommand> aPath, PathBuilder* aBuilder,
StyleStrokeLinecap aStrokeLineCap, Float aStrokeWidth,
const gfx::Point& aOffset = gfx::Point(), float aZoomFactor = 1.0);
const_iterator begin() const { return mData.Elements(); }
const_iterator end() const { return mData.Elements() + mData.Length(); }

15
layout/svg/CSSClipPathInstance.cpp
View file

@ -86,10 +86,6 @@ Maybe<Rect> CSSClipPathInstance::GetBoundingRectForBasicShapeOrPathClip(
already_AddRefed<Path> CSSClipPathInstance::CreateClipPath(
DrawTarget* aDrawTarget, const gfxMatrix& aTransform) {
if (mClipPathStyle.IsShape() && mClipPathStyle.AsShape()._0->IsPath()) {
return CreateClipPathPath(aDrawTarget);
}
nscoord appUnitsPerDevPixel =
mTargetFrame->PresContext()->AppUnitsPerDevPixel();
@ -125,6 +121,8 @@ already_AddRefed<Path> CSSClipPathInstance::CreateClipPath(
return CreateClipPathPolygon(aDrawTarget, r);
case StyleBasicShape::Tag::Rect:
return CreateClipPathInset(aDrawTarget, r);
case StyleBasicShape::Tag::Path:
return CreateClipPathPath(aDrawTarget, r);
default:
MOZ_MAKE_COMPILER_ASSUME_IS_UNREACHABLE("Unexpected shape type");
}
@ -176,16 +174,19 @@ already_AddRefed<Path> CSSClipPathInstance::CreateClipPathInset(
}
already_AddRefed<Path> CSSClipPathInstance::CreateClipPathPath(
DrawTarget* aDrawTarget) {
DrawTarget* aDrawTarget, const nsRect& aRefBox) {
const auto& path = mClipPathStyle.AsShape()._0->AsPath();
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder(
path.fill == StyleFillRule::Nonzero ? FillRule::FILL_WINDING
: FillRule::FILL_EVEN_ODD);
float scale = float(AppUnitsPerCSSPixel()) /
nscoord appUnitsPerDevPixel =
mTargetFrame->PresContext()->AppUnitsPerDevPixel();
float scale = float(AppUnitsPerCSSPixel()) / appUnitsPerDevPixel;
Point offset = Point(aRefBox.x, aRefBox.y) / appUnitsPerDevPixel;
return SVGPathData::BuildPath(path.path._0.AsSpan(), builder,
StyleStrokeLinecap::Butt, 0.0, scale);
StyleStrokeLinecap::Butt, 0.0, offset, scale);
}
} // namespace mozilla

3
layout/svg/CSSClipPathInstance.h
View file

@ -55,7 +55,8 @@ class MOZ_STACK_CLASS CSSClipPathInstance {
already_AddRefed<Path> CreateClipPathInset(DrawTarget* aDrawTarget,
const nsRect& aRefBox);
already_AddRefed<Path> CreateClipPathPath(DrawTarget* aDrawTarget);
already_AddRefed<Path> CreateClipPathPath(DrawTarget* aDrawTarget,
const nsRect& aRefBox);
/**
* The frame for the element that is currently being clipped.

2
testing/web-platform/meta/css/css-masking/clip-path/clip-path-path-003.html.ini
View file

@ -1,2 +0,0 @@
[clip-path-path-003.html]
expected: FAIL