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

       1                 : 
       2                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is the Mozilla SVG project.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is IBM Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2006
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #ifndef __NS_SVGGEOMETRYFRAME_H__
      39                 : #define __NS_SVGGEOMETRYFRAME_H__
      40                 : 
      41                 : #include "nsFrame.h"
      42                 : #include "gfxMatrix.h"
      43                 : 
      44                 : class nsSVGPaintServerFrame;
      45                 : class gfxContext;
      46                 : 
      47                 : typedef nsFrame nsSVGGeometryFrameBase;
      48                 : 
      49                 : #define SVG_HIT_TEST_FILL        0x01
      50                 : #define SVG_HIT_TEST_STROKE      0x02
      51                 : #define SVG_HIT_TEST_CHECK_MRECT 0x04
      52                 : 
      53                 : /* nsSVGGeometryFrame is a base class for SVG objects that directly
      54                 :  * have geometry (circle, ellipse, line, polyline, polygon, path, and
      55                 :  * glyph frames).  It knows how to convert the style information into
      56                 :  * cairo context information and stores the fill/stroke paint
      57                 :  * servers. */
      58                 : 
      59                 : class nsSVGGeometryFrame : public nsSVGGeometryFrameBase
      60               0 : {
      61                 : protected:
      62                 :   NS_DECL_FRAMEARENA_HELPERS
      63                 : 
      64               0 :   nsSVGGeometryFrame(nsStyleContext *aContext) : nsSVGGeometryFrameBase(aContext) {}
      65                 : 
      66                 : public:
      67                 :   // nsIFrame interface:
      68                 :   NS_IMETHOD Init(nsIContent* aContent,
      69                 :                   nsIFrame* aParent,
      70                 :                   nsIFrame* aPrevInFlow);
      71                 : 
      72               0 :   virtual bool IsFrameOfType(PRUint32 aFlags) const
      73                 :   {
      74               0 :     return nsSVGGeometryFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGGeometry));
      75                 :   }
      76                 : 
      77                 :   // nsSVGGeometryFrame methods:
      78                 :   virtual gfxMatrix GetCanvasTM() = 0;
      79                 :   PRUint16 GetClipRule();
      80                 : 
      81                 :   float GetStrokeWidth();
      82                 : 
      83                 :   /*
      84                 :    * Set up a cairo context for filling a path
      85                 :    * @return false to skip rendering
      86                 :    */
      87                 :   bool SetupCairoFill(gfxContext *aContext);
      88                 :   /*
      89                 :    * @return false if there is no stroke
      90                 :    */
      91                 :   bool HasStroke();
      92                 :   /*
      93                 :    * Set up a cairo context for measuring a stroked path
      94                 :    */
      95                 :   void SetupCairoStrokeGeometry(gfxContext *aContext);
      96                 :   /*
      97                 :    * Set up a cairo context for hit testing a stroked path
      98                 :    */
      99                 :   void SetupCairoStrokeHitGeometry(gfxContext *aContext);
     100                 :   /*
     101                 :    * Set up a cairo context for stroking a path
     102                 :    * @return false to skip rendering
     103                 :    */
     104                 :   bool SetupCairoStroke(gfxContext *aContext);
     105                 : 
     106                 : protected:
     107                 :   nsSVGPaintServerFrame *GetPaintServer(const nsStyleSVGPaint *aPaint,
     108                 :                                         const FramePropertyDescriptor *aProperty);
     109                 : 
     110                 :   /**
     111                 :    * This function returns a set of bit flags indicating which parts of the
     112                 :    * element (fill, stroke, bounds) should intercept pointer events. It takes
     113                 :    * into account the type of element and the value of the 'pointer-events'
     114                 :    * property on the element.
     115                 :    */
     116                 :   virtual PRUint16 GetHitTestFlags();
     117                 : 
     118                 :   /**
     119                 :    * Returns the given 'fill-opacity' or 'stroke-opacity' value multiplied by
     120                 :    * the value of the 'opacity' property if it's possible to avoid the expense
     121                 :    * of creating and compositing an offscreen surface for 'opacity' by
     122                 :    * combining 'opacity' with the 'fill-opacity'/'stroke-opacity'. If not, the
     123                 :    * given 'fill-opacity'/'stroke-opacity' is returned unmodified.
     124                 :    */
     125                 :   float MaybeOptimizeOpacity(float aFillOrStrokeOpacity);
     126                 : 
     127                 :   nsRect mCoveredRegion;
     128                 : 
     129                 : private:
     130                 :   bool GetStrokeDashData(FallibleTArray<gfxFloat>& dashes, gfxFloat *dashOffset);
     131                 : };
     132                 : 
     133                 : #endif // __NS_SVGGEOMETRYFRAME_H__

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