LCOV - code coverage report
Current view: directory - layout/svg/base/src - nsSVGMarkerFrame.h (source / functions) Found Hit Coverage
Test: app.info Lines: 7 0 0.0 %
Date: 2012-06-02 Functions: 4 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is the Mozilla SVG project.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is IBM Corporation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2004
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *
      23                 :  * Alternatively, the contents of this file may be used under the terms of
      24                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      25                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      27                 :  * of those above. If you wish to allow use of your version of this file only
      28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      29                 :  * use your version of this file under the terms of the MPL, indicate your
      30                 :  * decision by deleting the provisions above and replace them with the notice
      31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      32                 :  * the provisions above, a recipient may use your version of this file under
      33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      34                 :  *
      35                 :  * ***** END LICENSE BLOCK ***** */
      36                 : 
      37                 : #ifndef __NS_SVGMARKERFRAME_H__
      38                 : #define __NS_SVGMARKERFRAME_H__
      39                 : 
      40                 : #include "nsSVGContainerFrame.h"
      41                 : #include "gfxMatrix.h"
      42                 : 
      43                 : class gfxContext;
      44                 : class nsRenderingContext;
      45                 : class nsSVGPathGeometryFrame;
      46                 : class nsIURI;
      47                 : class nsIContent;
      48                 : struct nsSVGMark;
      49                 : 
      50                 : typedef nsSVGContainerFrame nsSVGMarkerFrameBase;
      51                 : 
      52                 : class nsSVGMarkerFrame : public nsSVGMarkerFrameBase
      53               0 : {
      54                 :   friend nsIFrame*
      55                 :   NS_NewSVGMarkerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
      56                 : protected:
      57               0 :   nsSVGMarkerFrame(nsStyleContext* aContext)
      58                 :     : nsSVGMarkerFrameBase(aContext)
      59                 :     , mMarkedFrame(nsnull)
      60                 :     , mInUse(false)
      61               0 :     , mInUse2(false)
      62                 :   {
      63               0 :     AddStateBits(NS_STATE_SVG_NONDISPLAY_CHILD);
      64               0 :   }
      65                 : 
      66                 : public:
      67                 :   NS_DECL_FRAMEARENA_HELPERS
      68                 : 
      69                 :   // nsIFrame interface:
      70                 : #ifdef DEBUG
      71                 :   NS_IMETHOD Init(nsIContent*      aContent,
      72                 :                   nsIFrame*        aParent,
      73                 :                   nsIFrame*        aPrevInFlow);
      74                 : #endif
      75                 : 
      76                 :   NS_IMETHOD AttributeChanged(PRInt32         aNameSpaceID,
      77                 :                               nsIAtom*        aAttribute,
      78                 :                               PRInt32         aModType);
      79                 :   /**
      80                 :    * Get the "type" of the frame
      81                 :    *
      82                 :    * @see nsGkAtoms::svgMarkerFrame
      83                 :    */
      84                 :   virtual nsIAtom* GetType() const;
      85                 : 
      86                 : #ifdef DEBUG
      87               0 :   NS_IMETHOD GetFrameName(nsAString& aResult) const
      88                 :   {
      89               0 :     return MakeFrameName(NS_LITERAL_STRING("SVGMarker"), aResult);
      90                 :   }
      91                 : #endif
      92                 : 
      93                 :   // nsSVGMarkerFrame methods:
      94                 :   nsresult PaintMark(nsRenderingContext *aContext,
      95                 :                      nsSVGPathGeometryFrame *aMarkedFrame,
      96                 :                      nsSVGMark *aMark,
      97                 :                      float aStrokeWidth);
      98                 : 
      99                 :   gfxRect GetMarkBBoxContribution(const gfxMatrix &aToBBoxUserspace,
     100                 :                                   PRUint32 aFlags,
     101                 :                                   nsSVGPathGeometryFrame *aMarkedFrame,
     102                 :                                   const nsSVGMark *aMark,
     103                 :                                   float aStrokeWidth);
     104                 : 
     105                 : private:
     106                 :   // stuff needed for callback
     107                 :   nsSVGPathGeometryFrame *mMarkedFrame;
     108                 :   float mStrokeWidth, mX, mY, mAutoAngle;
     109                 : 
     110                 :   // nsSVGContainerFrame methods:
     111                 :   virtual gfxMatrix GetCanvasTM();
     112                 : 
     113                 :   // A helper class to allow us to paint markers safely. The helper
     114                 :   // automatically sets and clears the mInUse flag on the marker frame (to
     115                 :   // prevent nasty reference loops) as well as the reference to the marked
     116                 :   // frame and its coordinate context. It's easy to mess this up
     117                 :   // and break things, so this helper makes the code far more robust.
     118                 :   class AutoMarkerReferencer
     119                 :   {
     120                 :   public:
     121                 :     AutoMarkerReferencer(nsSVGMarkerFrame *aFrame,
     122                 :                          nsSVGPathGeometryFrame *aMarkedFrame);
     123                 :     ~AutoMarkerReferencer();
     124                 :   private:
     125                 :     nsSVGMarkerFrame *mFrame;
     126                 :   };
     127                 : 
     128                 :   // nsSVGMarkerFrame methods:
     129                 :   void SetParentCoordCtxProvider(nsSVGSVGElement *aContext);
     130                 : 
     131                 :   // recursion prevention flag
     132                 :   bool mInUse;
     133                 : 
     134                 :   // second recursion prevention flag, for GetCanvasTM()
     135                 :   bool mInUse2;
     136                 : };
     137                 : 
     138                 : #endif

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