layout/svg/nsSVGTSpanFrame.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef NSSVGTSPANFRAME_H
   7 #define NSSVGTSPANFRAME_H
   8
   9 #include "mozilla/Attributes.h"
  10 #include "gfxMatrix.h"
  11 #include "nsFrame.h"
  12 #include "nsISVGGlyphFragmentNode.h"
  13 #include "nsLiteralString.h"
  14 #include "nsQueryFrame.h"
  15 #include "nsSVGTextContainerFrame.h"
  16
  17 class nsIAtom;
  18 class nsIContent;
  19 class nsIFrame;
  20 class nsIPresShell;
  21 class nsStyleContext;
  22 class nsSVGGlyphFrame;
  23
  24 namespace mozilla {
  25 class nsISVGPoint;
  26 }
  27
  28 typedef nsSVGTextContainerFrame nsSVGTSpanFrameBase;
  29
  30 class nsSVGTSpanFrame : public nsSVGTSpanFrameBase,
  31                         public nsISVGGlyphFragmentNode
  32 {
  33   friend nsIFrame*
  34   NS_NewSVGTSpanFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
  35 protected:
  36   nsSVGTSpanFrame(nsStyleContext* aContext) :
  37     nsSVGTSpanFrameBase(aContext) {}
  38
  39 public:
  40   NS_DECL_QUERYFRAME
  41   NS_DECL_FRAMEARENA_HELPERS
  42
  43   // nsIFrame:
  44 #ifdef DEBUG
  45   virtual void Init(nsIContent*      aContent,
  46                     nsIFrame*        aParent,
  47                     nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;
  48 #endif
  49
  50   NS_IMETHOD  AttributeChanged(int32_t         aNameSpaceID,
  51                                nsIAtom*        aAttribute,
  52                                int32_t         aModType) MOZ_OVERRIDE;
  53
  54   /**
  55    * Get the "type" of the frame
  56    *
  57    * @see nsGkAtoms::svgTSpanFrame
  58    */
  59   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
  60
  61 #ifdef DEBUG
  62   NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
  63   {
  64     return MakeFrameName(NS_LITERAL_STRING("SVGTSpan"), aResult);
  65   }
  66 #endif
  67   // nsSVGContainerFrame methods:
  68   virtual gfxMatrix GetCanvasTM(uint32_t aFor) MOZ_OVERRIDE;
  69
  70   // nsISVGGlyphFragmentNode interface:
  71   virtual uint32_t GetNumberOfChars() MOZ_OVERRIDE;
  72   virtual float GetComputedTextLength() MOZ_OVERRIDE;
  73   virtual float GetSubStringLength(uint32_t charnum, uint32_t fragmentChars) MOZ_OVERRIDE;
  74   virtual int32_t GetCharNumAtPosition(mozilla::nsISVGPoint *point) MOZ_OVERRIDE;
  75   NS_IMETHOD_(nsSVGGlyphFrame *) GetFirstGlyphFrame() MOZ_OVERRIDE;
  76   NS_IMETHOD_(nsSVGGlyphFrame *) GetNextGlyphFrame() MOZ_OVERRIDE;
  77   NS_IMETHOD_(void) SetWhitespaceCompression(bool aCompressWhitespace) MOZ_OVERRIDE;
  78 };
  79
  80 #endif