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-rw-r--r--layout/svg/CSSClipPathInstance.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/layout/svg/CSSClipPathInstance.h b/layout/svg/CSSClipPathInstance.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_
+#define LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_
+
+#include "gfxMatrix.h"
+#include "gfxPoint.h"
+#include "mozilla/gfx/2D.h"
+#include "nsRect.h"
+#include "nsStyleStruct.h"
+
+class nsIFrame;
+class gfxContext;
+
+namespace mozilla {
+
+class MOZ_STACK_CLASS CSSClipPathInstance {
+ using DrawTarget = gfx::DrawTarget;
+ using Path = gfx::Path;
+ using Rect = gfx::Rect;
+
+ public:
+ static void ApplyBasicShapeOrPathClip(gfxContext& aContext, nsIFrame* aFrame,
+ const gfxMatrix& aTransform);
+ static RefPtr<Path> CreateClipPathForFrame(gfx::DrawTarget* aDt,
+ nsIFrame* aFrame,
+ const gfxMatrix& aTransform);
+ // aPoint is in CSS pixels.
+ static bool HitTestBasicShapeOrPathClip(nsIFrame* aFrame,
+ const gfxPoint& aPoint);
+
+ static Maybe<Rect> GetBoundingRectForBasicShapeOrPathClip(
+ nsIFrame* aFrame, const StyleClipPath&);
+
+ private:
+ explicit CSSClipPathInstance(nsIFrame* aFrame, const StyleClipPath& aClipPath)
+ : mTargetFrame(aFrame), mClipPathStyle(aClipPath) {}
+
+ already_AddRefed<Path> CreateClipPath(DrawTarget* aDrawTarget,
+ const gfxMatrix& aTransform);
+
+ already_AddRefed<Path> CreateClipPathCircle(DrawTarget* aDrawTarget,
+ const nsRect& aRefBox);
+
+ already_AddRefed<Path> CreateClipPathEllipse(DrawTarget* aDrawTarget,
+ const nsRect& aRefBox);
+
+ already_AddRefed<Path> CreateClipPathPolygon(DrawTarget* aDrawTarget,
+ const nsRect& aRefBox);
+
+ already_AddRefed<Path> CreateClipPathInset(DrawTarget* aDrawTarget,
+ const nsRect& aRefBox);
+
+ already_AddRefed<Path> CreateClipPathPath(DrawTarget* aDrawTarget);
+
+ /**
+ * The frame for the element that is currently being clipped.
+ */
+ nsIFrame* mTargetFrame;
+ const StyleClipPath& mClipPathStyle;
+};
+
+} // namespace mozilla
+
+#endif // LAYOUT_SVG_CSSCLIPPATHINSTANCE_H_