gecko-dev/layout/mathml/nsMathMLmspaceFrame.h
Nicholas Nethercote 06e901cb9f Bug 1231550 - Use DrawTarget instead of gfxContext and/or nsRenderingContext in many places in font/text code. r=jfkthame.
AutoTextRun now only needs a DrawTarget instead of an nsRenderingContext, and
similar nsRenderingContext/gfxContext-to-DrawTarget replacements can be
propagated a long way up the call graph. This patch replaces 93 occurrences of
nsRenderingContext and 135 occurrences of gfxContext with DrawTarget; that's
13% of them.

The patch is mostly plumbing changes. A couple of not-entirely-plumbing
changes:

- It adds a comment about the null check in
  gfxGlyphExtents::GetTightGlyphExtentsAppUnits().

- A couple of functions simply had an unused gfxContext or nsRenderingContext
  parameter removed, e.g. SetLineBreaks().

--HG--
extra : rebase_source : 8f56994bb4d254a86788b17ab2864ebc758a7e6b
2015-12-15 13:56:41 -08:00

57 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsMathMLmspaceFrame_h___
#define nsMathMLmspaceFrame_h___
#include "mozilla/Attributes.h"
#include "nsMathMLContainerFrame.h"
//
// <mspace> -- space
//
class nsMathMLmspaceFrame : public nsMathMLContainerFrame {
public:
NS_DECL_FRAMEARENA_HELPERS
friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_IMETHOD
TransmitAutomaticData() override {
// The REC defines the following elements to be space-like:
// * an mtext, mspace, maligngroup, or malignmark element;
mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
return NS_OK;
}
virtual bool IsLeaf() const override;
virtual void
Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus) override;
protected:
explicit nsMathMLmspaceFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
virtual ~nsMathMLmspaceFrame();
virtual nsresult
MeasureForWidth(DrawTarget* aDrawTarget,
nsHTMLReflowMetrics& aDesiredSize) override;
private:
nscoord mWidth;
nscoord mHeight;
nscoord mDepth;
// helper method to initialize our member data
void
ProcessAttributes(nsPresContext* aPresContext);
};
#endif /* nsMathMLmspaceFrame_h___ */