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a0d6bab413
Note that rect() computes to the equivalent inset() function as well. i.e. Given `rect(t r b l)`, the equivalent function is `inset(t calc(100% - r) calc(100% - b) l)`. The implementation is straightforward, and we don't have to change anything in cpp because it is always `inset()` when building the gfx::Path. The tests for clip-path will be added in the following patch. Differential Revision: https://phabricator.services.mozilla.com/D183528
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_
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#define LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_
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#include "gfxMatrix.h"
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#include "gfxPoint.h"
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#include "mozilla/gfx/2D.h"
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#include "nsRect.h"
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#include "nsStyleStruct.h"
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class nsIFrame;
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class gfxContext;
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namespace mozilla {
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class MOZ_STACK_CLASS CSSClipPathInstance {
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using DrawTarget = gfx::DrawTarget;
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using Path = gfx::Path;
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using Rect = gfx::Rect;
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public:
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static void ApplyBasicShapeOrPathClip(gfxContext& aContext, nsIFrame* aFrame,
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const gfxMatrix& aTransform);
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static RefPtr<Path> CreateClipPathForFrame(gfx::DrawTarget* aDt,
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nsIFrame* aFrame,
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const gfxMatrix& aTransform);
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// aPoint is in CSS pixels.
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static bool HitTestBasicShapeOrPathClip(nsIFrame* aFrame,
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const gfxPoint& aPoint);
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static Maybe<Rect> GetBoundingRectForBasicShapeOrPathClip(
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nsIFrame* aFrame, const StyleClipPath&);
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private:
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explicit CSSClipPathInstance(nsIFrame* aFrame, const StyleClipPath& aClipPath)
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: mTargetFrame(aFrame), mClipPathStyle(aClipPath) {}
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already_AddRefed<Path> CreateClipPath(DrawTarget* aDrawTarget,
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const gfxMatrix& aTransform);
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already_AddRefed<Path> CreateClipPathCircle(DrawTarget* aDrawTarget,
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const nsRect& aRefBox);
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already_AddRefed<Path> CreateClipPathEllipse(DrawTarget* aDrawTarget,
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const nsRect& aRefBox);
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already_AddRefed<Path> CreateClipPathPolygon(DrawTarget* aDrawTarget,
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const nsRect& aRefBox);
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already_AddRefed<Path> CreateClipPathInset(DrawTarget* aDrawTarget,
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const nsRect& aRefBox);
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already_AddRefed<Path> CreateClipPathPath(DrawTarget* aDrawTarget);
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/**
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* The frame for the element that is currently being clipped.
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*/
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nsIFrame* mTargetFrame;
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const StyleClipPath& mClipPathStyle;
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};
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} // namespace mozilla
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#endif // LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_
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