LCOV - code coverage report
Current view: directory - gfx/thebes - gfxDrawable.h (source / functions) Found Hit Coverage
Test: app.info Lines: 11 0 0.0 %
Date: 2012-06-02 Functions: 17 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 mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Markus Stange.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      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_DRAWABLE_H
      38                 : #define GFX_DRAWABLE_H
      39                 : 
      40                 : #include "nsISupportsImpl.h"
      41                 : #include "nsAutoPtr.h"
      42                 : #include "gfxTypes.h"
      43                 : #include "gfxRect.h"
      44                 : #include "gfxColor.h"
      45                 : #include "gfxMatrix.h"
      46                 : #include "gfxPattern.h"
      47                 : 
      48                 : class gfxASurface;
      49                 : class gfxContext;
      50                 : 
      51                 : /**
      52                 :  * gfxDrawable
      53                 :  * An Interface representing something that has an intrinsic size and can draw
      54                 :  * itself repeatedly.
      55                 :  */
      56                 : class THEBES_API gfxDrawable {
      57               0 :     NS_INLINE_DECL_REFCOUNTING(gfxDrawable)
      58                 : public:
      59               0 :     gfxDrawable(const gfxIntSize aSize)
      60               0 :      : mSize(aSize) {}
      61               0 :     virtual ~gfxDrawable() {}
      62                 : 
      63                 :     /**
      64                 :      * Draw into aContext filling aFillRect, possibly repeating, using aFilter.
      65                 :      * aTransform is a userspace to "image"space matrix. For example, if Draw
      66                 :      * draws using a gfxPattern, this is the matrix that should be set on the
      67                 :      * pattern prior to rendering it.
      68                 :      *  @return whether drawing was successful
      69                 :      */
      70                 :     virtual bool Draw(gfxContext* aContext,
      71                 :                         const gfxRect& aFillRect,
      72                 :                         bool aRepeat,
      73                 :                         const gfxPattern::GraphicsFilter& aFilter,
      74                 :                         const gfxMatrix& aTransform = gfxMatrix()) = 0;
      75               0 :     virtual gfxIntSize Size() { return mSize; }
      76                 : 
      77                 : protected:
      78                 :     const gfxIntSize mSize;
      79                 : };
      80                 : 
      81                 : /**
      82                 :  * gfxSurfaceDrawable
      83                 :  * A convenience implementation of gfxDrawable for surfaces.
      84                 :  */
      85                 : class THEBES_API gfxSurfaceDrawable : public gfxDrawable {
      86                 : public:
      87                 :     gfxSurfaceDrawable(gfxASurface* aSurface, const gfxIntSize aSize,
      88                 :                        const gfxMatrix aTransform = gfxMatrix());
      89               0 :     virtual ~gfxSurfaceDrawable() {}
      90                 : 
      91                 :     virtual bool Draw(gfxContext* aContext,
      92                 :                         const gfxRect& aFillRect,
      93                 :                         bool aRepeat,
      94                 :                         const gfxPattern::GraphicsFilter& aFilter,
      95                 :                         const gfxMatrix& aTransform = gfxMatrix());
      96                 : 
      97                 : protected:
      98                 :     nsRefPtr<gfxASurface> mSurface;
      99                 :     const gfxMatrix mTransform;
     100                 : };
     101                 : 
     102                 : /**
     103                 :  * gfxDrawingCallback
     104                 :  * A simple drawing functor.
     105                 :  */
     106               0 : class THEBES_API gfxDrawingCallback {
     107               0 :     NS_INLINE_DECL_REFCOUNTING(gfxDrawingCallback)
     108                 : public:
     109               0 :     virtual ~gfxDrawingCallback() {}
     110                 : 
     111                 :     /**
     112                 :      * Draw into aContext filling aFillRect using aFilter.
     113                 :      * aTransform is a userspace to "image"space matrix. For example, if Draw
     114                 :      * draws using a gfxPattern, this is the matrix that should be set on the
     115                 :      * pattern prior to rendering it.
     116                 :      *  @return whether drawing was successful
     117                 :      */
     118                 :     virtual bool operator()(gfxContext* aContext,
     119                 :                               const gfxRect& aFillRect,
     120                 :                               const gfxPattern::GraphicsFilter& aFilter,
     121                 :                               const gfxMatrix& aTransform = gfxMatrix()) = 0;
     122                 : 
     123                 : };
     124                 : 
     125                 : /**
     126                 :  * gfxSurfaceDrawable
     127                 :  * A convenience implementation of gfxDrawable for callbacks.
     128                 :  */
     129                 : class THEBES_API gfxCallbackDrawable : public gfxDrawable {
     130                 : public:
     131                 :     gfxCallbackDrawable(gfxDrawingCallback* aCallback, const gfxIntSize aSize);
     132               0 :     virtual ~gfxCallbackDrawable() {}
     133                 : 
     134                 :     virtual bool Draw(gfxContext* aContext,
     135                 :                         const gfxRect& aFillRect,
     136                 :                         bool aRepeat,
     137                 :                         const gfxPattern::GraphicsFilter& aFilter,
     138                 :                         const gfxMatrix& aTransform = gfxMatrix());
     139                 : 
     140                 : protected:
     141                 :     already_AddRefed<gfxSurfaceDrawable> MakeSurfaceDrawable(const gfxPattern::GraphicsFilter aFilter = gfxPattern::FILTER_FAST);
     142                 : 
     143                 :     nsRefPtr<gfxDrawingCallback> mCallback;
     144                 :     nsRefPtr<gfxSurfaceDrawable> mSurfaceDrawable;
     145                 : };
     146                 : 
     147                 : /**
     148                 :  * gfxPatternDrawable
     149                 :  * A convenience implementation of gfxDrawable for patterns.
     150                 :  */
     151                 : class THEBES_API gfxPatternDrawable : public gfxDrawable {
     152                 : public:
     153                 :     gfxPatternDrawable(gfxPattern* aPattern,
     154                 :                        const gfxIntSize aSize);
     155               0 :     virtual ~gfxPatternDrawable() {}
     156                 : 
     157                 :     virtual bool Draw(gfxContext* aContext,
     158                 :                         const gfxRect& aFillRect,
     159                 :                         bool aRepeat,
     160                 :                         const gfxPattern::GraphicsFilter& aFilter,
     161                 :                         const gfxMatrix& aTransform = gfxMatrix());
     162                 : 
     163                 : protected:
     164                 :     already_AddRefed<gfxCallbackDrawable> MakeCallbackDrawable();
     165                 : 
     166                 :     nsRefPtr<gfxPattern> mPattern;
     167                 : };
     168                 : 
     169                 : #endif /* GFX_DRAWABLE_H */

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