LCOV - app.info - gfx/thebes/gfxPath.h

LCOV - code coverage report
| Current view: | directory - gfx/thebes - gfxPath.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 1 | 0 | 0.0 %
| Date: | 2012-06-02 | Functions: | 2 | 0 | 0.0 %

           1                 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
           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 IBM Corporation code.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is IBM Corporation.
          18                 :  * Portions created by the Initial Developer are Copyright (C) 2007
          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 the GNU General Public License Version 2 or later (the "GPL"), or
          25                 :  * 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 GFX_PATH_H
          38                 : #define GFX_PATH_H
          39                 :
          40                 : #include "gfxTypes.h"
          41                 : #include "nsISupportsImpl.h"
          42                 :
          43                 : class gfxContext;
          44                 : struct gfxPoint;
          45                 : typedef struct cairo_path cairo_path_t;
          46                 :
          47                 : /**
          48                 :  * Class representing a path. Can be created by copying the current path
          49                 :  * of a gfxContext.
          50                 :  */
          51                 : class THEBES_API gfxPath {
          52               0 :     NS_INLINE_DECL_REFCOUNTING(gfxPath)
          53                 :
          54                 :     friend class gfxContext;
          55                 :
          56                 : protected:
          57                 :     gfxPath(cairo_path_t* aPath);
          58                 :
          59                 : public:
          60                 :     virtual ~gfxPath();
          61                 :
          62                 : protected:
          63                 :     cairo_path_t* mPath;
          64                 : };
          65                 :
          66                 : /**
          67                 :  * Specialization of a path that only contains linear pieces. Can be created
          68                 :  * from the existing path of a gfxContext.
          69                 :  */
          70                 : class THEBES_API gfxFlattenedPath : public gfxPath {
          71                 :     friend class gfxContext;
          72                 :
          73                 : protected:
          74                 :     gfxFlattenedPath(cairo_path_t* aPath);
          75                 :
          76                 : public:
          77                 :     virtual ~gfxFlattenedPath();
          78                 :
          79                 :     /**
          80                 :      * Returns calculated total length of path
          81                 :      */
          82                 :     gfxFloat GetLength();
          83                 :
          84                 :     /**
          85                 :      * Returns a point a certain distance along the path.  Return is
          86                 :      * first or last point of the path if the requested length offset
          87                 :      * is outside the range for the path.
          88                 :      * @param aOffset offset inpath parameter space (x=length, y=normal offset)
          89                 :      * @param aAngle optional - output tangent
          90                 :      */
          91                 :     gfxPoint FindPoint(gfxPoint aOffset,
          92                 :                        gfxFloat* aAngle = nsnull);
          93                 : };
          94                 :
          95                 : #endif

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