зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
3.2 KiB
C++
108 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 NS_SVGTEXTFRAME_H
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#define NS_SVGTEXTFRAME_H
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#include "gfxMatrix.h"
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#include "gfxRect.h"
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#include "nsSVGTextContainerFrame.h"
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class nsRenderingContext;
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typedef nsSVGTextContainerFrame nsSVGTextFrameBase;
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namespace mozilla {
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namespace dom {
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class SVGIRect;
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}
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}
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class nsSVGTextFrame : public nsSVGTextFrameBase
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{
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friend nsIFrame*
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NS_NewSVGTextFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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protected:
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nsSVGTextFrame(nsStyleContext* aContext)
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: nsSVGTextFrameBase(aContext),
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mPositioningDirty(true) {}
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public:
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NS_DECL_FRAMEARENA_HELPERS
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// nsIFrame:
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#ifdef DEBUG
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virtual void Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
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#endif
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NS_IMETHOD AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType);
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/**
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* Get the "type" of the frame
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*
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* @see nsGkAtoms::svgTextFrame
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*/
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virtual nsIAtom* GetType() const;
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("SVGText"), aResult);
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}
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#endif
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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// nsISVGChildFrame interface:
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virtual void NotifySVGChanged(uint32_t aFlags);
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// Override these four to ensure that UpdateGlyphPositioning is called
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// to bring glyph positions up to date
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NS_IMETHOD PaintSVG(nsRenderingContext* aContext,
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const nsIntRect *aDirtyRect);
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NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint & aPoint);
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virtual void ReflowSVG();
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virtual SVGBBox GetBBoxContribution(const gfxMatrix &aToBBoxUserspace,
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uint32_t aFlags);
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// nsSVGContainerFrame methods:
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virtual gfxMatrix GetCanvasTM(uint32_t aFor);
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// nsSVGTextContainerFrame methods:
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virtual uint32_t GetNumberOfChars();
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virtual float GetComputedTextLength();
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virtual float GetSubStringLength(uint32_t charnum, uint32_t nchars);
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virtual int32_t GetCharNumAtPosition(mozilla::nsISVGPoint *point);
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NS_IMETHOD GetStartPositionOfChar(uint32_t charnum, nsISupports **_retval);
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NS_IMETHOD GetEndPositionOfChar(uint32_t charnum, nsISupports **_retval);
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NS_IMETHOD GetExtentOfChar(uint32_t charnum, mozilla::dom::SVGIRect **_retval);
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NS_IMETHOD GetRotationOfChar(uint32_t charnum, float *_retval);
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// nsSVGTextFrame
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void NotifyGlyphMetricsChange();
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private:
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/**
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* @param aForceGlobalTransform passed down to nsSVGGlyphFrames to
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* control whether they should use the global transform even when
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* NS_STATE_NONDISPLAY_CHILD
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*/
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void UpdateGlyphPositioning(bool aForceGlobalTransform);
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void SetWhitespaceHandling(nsSVGGlyphFrame *aFrame);
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nsAutoPtr<gfxMatrix> mCanvasTM;
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bool mPositioningDirty;
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};
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#endif
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