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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /layout/mathml/nsMathMLmencloseFrame.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/mathml/nsMathMLmencloseFrame.h')
-rw-r--r--layout/mathml/nsMathMLmencloseFrame.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/layout/mathml/nsMathMLmencloseFrame.h b/layout/mathml/nsMathMLmencloseFrame.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 nsMathMLmencloseFrame_h___
+#define nsMathMLmencloseFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "mozilla/EnumSet.h"
+#include "nsMathMLChar.h"
+#include "nsMathMLContainerFrame.h"
+
+namespace mozilla {
+class PresShell;
+} // namespace mozilla
+
+//
+// <menclose> -- enclose content with a stretching symbol such
+// as a long division sign.
+//
+
+/*
+ The MathML REC describes:
+
+ The menclose element renders its content inside the enclosing notation
+ specified by its notation attribute. menclose accepts any number of arguments;
+ if this number is not 1, its contents are treated as a single "inferred mrow"
+ containing its arguments, as described in Section 3.1.3 Required Arguments.
+*/
+
+enum nsMencloseNotation {
+ NOTATION_LONGDIV,
+ NOTATION_RADICAL,
+ NOTATION_ROUNDEDBOX,
+ NOTATION_CIRCLE,
+ NOTATION_LEFT,
+ NOTATION_RIGHT,
+ NOTATION_TOP,
+ NOTATION_BOTTOM,
+ NOTATION_UPDIAGONALSTRIKE,
+ NOTATION_DOWNDIAGONALSTRIKE,
+ NOTATION_VERTICALSTRIKE,
+ NOTATION_HORIZONTALSTRIKE,
+ NOTATION_UPDIAGONALARROW,
+ NOTATION_PHASORANGLE
+};
+
+class nsMathMLmencloseFrame : public nsMathMLContainerFrame {
+ public:
+ NS_DECL_FRAMEARENA_HELPERS(nsMathMLmencloseFrame)
+
+ friend nsIFrame* NS_NewMathMLmencloseFrame(mozilla::PresShell* aPresShell,
+ ComputedStyle* aStyle);
+
+ virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
+ ReflowOutput& aDesiredSize) override;
+
+ virtual nsresult MeasureForWidth(DrawTarget* aDrawTarget,
+ ReflowOutput& aDesiredSize) override;
+
+ virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
+ int32_t aModType) override;
+
+ void DidSetComputedStyle(ComputedStyle* aOldStyle) override;
+
+ virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+ const nsDisplayListSet& aLists) override;
+
+ NS_IMETHOD
+ InheritAutomaticData(nsIFrame* aParent) override;
+
+ NS_IMETHOD
+ TransmitAutomaticData() override;
+
+ virtual nscoord FixInterFrameSpacing(ReflowOutput& aDesiredSize) override;
+
+ bool IsMrowLike() override {
+ return mFrames.FirstChild() != mFrames.LastChild() || !mFrames.FirstChild();
+ }
+
+ protected:
+ explicit nsMathMLmencloseFrame(ComputedStyle* aStyle,
+ nsPresContext* aPresContext,
+ ClassID aID = kClassID);
+ virtual ~nsMathMLmencloseFrame();
+
+ nsresult PlaceInternal(DrawTarget* aDrawTarget, bool aPlaceOrigin,
+ ReflowOutput& aDesiredSize, bool aWidthOnly);
+
+ // functions to parse the "notation" attribute.
+ nsresult AddNotation(const nsAString& aNotation);
+ void InitNotations();
+
+ // Description of the notations to draw
+ mozilla::EnumSet<nsMencloseNotation> mNotationsToDraw;
+ bool IsToDraw(nsMencloseNotation notation) {
+ return mNotationsToDraw.contains(notation);
+ }
+
+ nscoord mRuleThickness;
+ nscoord mRadicalRuleThickness;
+ nsTArray<nsMathMLChar> mMathMLChar;
+ int8_t mLongDivCharIndex, mRadicalCharIndex;
+ nscoord mContentWidth;
+ nsresult AllocateMathMLChar(nsMencloseNotation mask);
+
+ // Display a frame of the specified type.
+ // @param aType Type of frame to display
+ void DisplayNotation(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
+ const nsRect& aRect, const nsDisplayListSet& aLists,
+ nscoord aThickness, nsMencloseNotation aType);
+};
+
+#endif /* nsMathMLmencloseFrame_h___ */