зеркало из https://github.com/mozilla/gecko-dev.git
295 строки
10 KiB
C++
295 строки
10 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 nsMathMLmtableFrame_h___
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#define nsMathMLmtableFrame_h___
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#include "mozilla/Attributes.h"
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#include "mozilla/UniquePtr.h"
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#include "nsMathMLContainerFrame.h"
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#include "nsBlockFrame.h"
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#include "nsTableWrapperFrame.h"
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#include "nsTableRowFrame.h"
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#include "nsTableCellFrame.h"
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namespace mozilla {
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class PresShell;
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} // namespace mozilla
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//
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// <mtable> -- table or matrix
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//
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class nsMathMLmtableWrapperFrame final : public nsTableWrapperFrame,
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public nsMathMLFrame {
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public:
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friend nsContainerFrame* NS_NewMathMLmtableOuterFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmtableWrapperFrame)
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// overloaded nsTableWrapperFrame methods
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsTableWrapperFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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protected:
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explicit nsMathMLmtableWrapperFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsTableWrapperFrame(aStyle, aPresContext, kClassID) {}
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virtual ~nsMathMLmtableWrapperFrame();
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// helper to find the row frame at a given index, positive or negative, e.g.,
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// 1..n means the first row down to the last row, -1..-n means the last row
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// up to the first row. Used for alignments that are relative to a given row
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nsIFrame* GetRowFrameAt(int32_t aRowIndex);
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}; // class nsMathMLmtableWrapperFrame
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// --------------
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class nsMathMLmtableFrame final : public nsTableFrame {
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public:
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmtableFrame)
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friend nsContainerFrame* NS_NewMathMLmtableFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
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// Overloaded nsTableFrame methods
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virtual void SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) override;
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virtual void AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList) override {
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nsTableFrame::AppendFrames(aListID, aFrameList);
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RestyleTable();
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}
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virtual void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
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const nsLineList::iterator* aPrevFrameLine,
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nsFrameList& aFrameList) override {
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nsTableFrame::InsertFrames(aListID, aPrevFrame, aPrevFrameLine, aFrameList);
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RestyleTable();
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}
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virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override {
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nsTableFrame::RemoveFrame(aListID, aOldFrame);
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RestyleTable();
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}
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsTableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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// helper to restyle and reflow the table when a row is changed -- since
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// MathML attributes are inter-dependent and row/colspan can affect the table,
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// it is safer (albeit grossly suboptimal) to just relayout the whole thing.
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void RestyleTable();
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/** helper to get the column spacing style value */
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nscoord GetColSpacing(int32_t aColIndex) override;
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/** Sums the combined cell spacing between the columns aStartColIndex to
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* aEndColIndex.
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*/
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nscoord GetColSpacing(int32_t aStartColIndex, int32_t aEndColIndex) override;
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/** helper to get the row spacing style value */
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nscoord GetRowSpacing(int32_t aRowIndex) override;
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/** Sums the combined cell spacing between the rows aStartRowIndex to
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* aEndRowIndex.
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*/
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nscoord GetRowSpacing(int32_t aStartRowIndex, int32_t aEndRowIndex) override;
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void SetColSpacingArray(const nsTArray<nscoord>& aColSpacing) {
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mColSpacing = aColSpacing.Clone();
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}
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void SetRowSpacingArray(const nsTArray<nscoord>& aRowSpacing) {
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mRowSpacing = aRowSpacing.Clone();
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}
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void SetFrameSpacing(nscoord aSpacingX, nscoord aSpacingY) {
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mFrameSpacingX = aSpacingX;
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mFrameSpacingY = aSpacingY;
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}
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/** Determines whether the placement of table cells is determined by CSS
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* spacing based on padding and border-spacing, or one based upon the
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* rowspacing, columnspacing and framespacing attributes. The second
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* approach is used if the user specifies at least one of those attributes.
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*/
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void SetUseCSSSpacing();
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bool GetUseCSSSpacing() { return mUseCSSSpacing; }
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protected:
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explicit nsMathMLmtableFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsTableFrame(aStyle, aPresContext, kClassID),
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mFrameSpacingX(0),
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mFrameSpacingY(0),
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mUseCSSSpacing(false) {}
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virtual ~nsMathMLmtableFrame();
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private:
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nsTArray<nscoord> mColSpacing;
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nsTArray<nscoord> mRowSpacing;
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nscoord mFrameSpacingX;
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nscoord mFrameSpacingY;
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bool mUseCSSSpacing;
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}; // class nsMathMLmtableFrame
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// --------------
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class nsMathMLmtrFrame final : public nsTableRowFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmtrFrame)
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friend nsContainerFrame* NS_NewMathMLmtrFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle);
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// overloaded nsTableRowFrame methods
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virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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virtual void AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList) override {
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nsTableRowFrame::AppendFrames(aListID, aFrameList);
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RestyleTable();
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}
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virtual void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
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const nsLineList::iterator* aPrevFrameLine,
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nsFrameList& aFrameList) override {
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nsTableRowFrame::InsertFrames(aListID, aPrevFrame, aPrevFrameLine,
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aFrameList);
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RestyleTable();
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}
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virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override {
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nsTableRowFrame::RemoveFrame(aListID, aOldFrame);
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RestyleTable();
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}
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsTableRowFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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// helper to restyle and reflow the table -- @see nsMathMLmtableFrame.
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void RestyleTable() {
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nsTableFrame* tableFrame = GetTableFrame();
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if (tableFrame && tableFrame->IsFrameOfType(nsIFrame::eMathML)) {
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// relayout the table
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((nsMathMLmtableFrame*)tableFrame)->RestyleTable();
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}
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}
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protected:
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explicit nsMathMLmtrFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsTableRowFrame(aStyle, aPresContext, kClassID) {}
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virtual ~nsMathMLmtrFrame();
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}; // class nsMathMLmtrFrame
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// --------------
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class nsMathMLmtdFrame final : public nsTableCellFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmtdFrame)
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friend nsContainerFrame* NS_NewMathMLmtdFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle,
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nsTableFrame* aTableFrame);
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// overloaded nsTableCellFrame methods
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virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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virtual mozilla::StyleVerticalAlignKeyword GetVerticalAlign() const override;
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virtual nsresult ProcessBorders(nsTableFrame* aFrame,
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nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsTableCellFrame::IsFrameOfType(aFlags & ~(nsIFrame::eMathML));
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}
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virtual LogicalMargin GetBorderWidth(WritingMode aWM) const override;
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virtual nsMargin GetBorderOverflow() override;
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protected:
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nsMathMLmtdFrame(ComputedStyle* aStyle, nsTableFrame* aTableFrame)
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: nsTableCellFrame(aStyle, aTableFrame, kClassID) {}
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virtual ~nsMathMLmtdFrame();
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}; // class nsMathMLmtdFrame
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// --------------
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class nsMathMLmtdInnerFrame final : public nsBlockFrame, public nsMathMLFrame {
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public:
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friend nsContainerFrame* NS_NewMathMLmtdInnerFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmtdInnerFrame)
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// Overloaded nsIMathMLFrame methods
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NS_IMETHOD
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UpdatePresentationDataFromChildAt(int32_t aFirstIndex, int32_t aLastIndex,
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uint32_t aFlagsValues,
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uint32_t aFlagsToUpdate) override {
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nsMathMLContainerFrame::PropagatePresentationDataFromChildAt(
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this, aFirstIndex, aLastIndex, aFlagsValues, aFlagsToUpdate);
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return NS_OK;
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}
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsBlockFrame::IsFrameOfType(aFlags & ~nsIFrame::eMathML);
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}
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virtual const nsStyleText* StyleTextForLineLayout() override;
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virtual void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
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bool IsMrowLike() override {
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return mFrames.FirstChild() != mFrames.LastChild() || !mFrames.FirstChild();
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}
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protected:
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explicit nsMathMLmtdInnerFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext);
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virtual ~nsMathMLmtdInnerFrame() = default;
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mozilla::UniquePtr<nsStyleText> mUniqueStyleText;
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}; // class nsMathMLmtdInnerFrame
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#endif /* nsMathMLmtableFrame_h___ */
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