gecko-dev/dom/svg/SVGTextContentElement.h
Cameron McCormack 4f17cad8f0 Bug 1330236 - Compute SVG getNumberOfChars() quicker in simple cases. r=longsonr+218550
MozReview-Commit-ID: FgwR9dxTefx

--HG--
extra : rebase_source : 5b1ba3aa727cdd278a4b40c24231ca446b8bc45d
2017-01-17 13:45:43 +08:00

72 lines
2.3 KiB
C++

/* -*- 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 mozilla_dom_SVGTextContentElement_h
#define mozilla_dom_SVGTextContentElement_h
#include "mozilla/dom/SVGGraphicsElement.h"
#include "mozilla/dom/SVGAnimatedEnumeration.h"
#include "nsSVGEnum.h"
#include "nsSVGLength2.h"
static const unsigned short SVG_LENGTHADJUST_UNKNOWN = 0;
static const unsigned short SVG_LENGTHADJUST_SPACING = 1;
static const unsigned short SVG_LENGTHADJUST_SPACINGANDGLYPHS = 2;
class SVGTextFrame;
namespace mozilla {
class nsISVGPoint;
namespace dom {
class SVGIRect;
typedef SVGGraphicsElement SVGTextContentElementBase;
class SVGTextContentElement : public SVGTextContentElementBase
{
public:
using FragmentOrElement::TextLength;
// WebIDL
already_AddRefed<SVGAnimatedLength> TextLength();
already_AddRefed<SVGAnimatedEnumeration> LengthAdjust();
int32_t GetNumberOfChars();
float GetComputedTextLength();
void SelectSubString(uint32_t charnum, uint32_t nchars, ErrorResult& rv);
float GetSubStringLength(uint32_t charnum, uint32_t nchars, ErrorResult& rv);
already_AddRefed<nsISVGPoint> GetStartPositionOfChar(uint32_t charnum, ErrorResult& rv);
already_AddRefed<nsISVGPoint> GetEndPositionOfChar(uint32_t charnum, ErrorResult& rv);
already_AddRefed<SVGIRect> GetExtentOfChar(uint32_t charnum, ErrorResult& rv);
float GetRotationOfChar(uint32_t charnum, ErrorResult& rv);
int32_t GetCharNumAtPosition(nsISVGPoint& point);
protected:
explicit SVGTextContentElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: SVGTextContentElementBase(aNodeInfo)
{}
SVGTextFrame* GetSVGTextFrame();
SVGTextFrame* GetSVGTextFrameForNonLayoutDependentQuery();
mozilla::Maybe<int32_t> GetNonLayoutDependentNumberOfChars();
enum { LENGTHADJUST };
virtual nsSVGEnum* EnumAttributes() = 0;
static nsSVGEnumMapping sLengthAdjustMap[];
static EnumInfo sEnumInfo[1];
enum { TEXTLENGTH };
virtual nsSVGLength2* LengthAttributes() = 0;
static LengthInfo sLengthInfo[1];
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_SVGTextContentElement_h