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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #ifndef PdfRenderer_DEFINED
      9 #define PdfRenderer_DEFINED
     10 
     11 //
     12 // PdfRender takes a SkPicture and writes it to a PDF file.
     13 // An SkPicture can be built manually, or read from an SKP file.
     14 //
     15 
     16 #include "SkDocument.h"
     17 #include "SkMath.h"
     18 #include "SkPicture.h"
     19 #include "SkTypes.h"
     20 #include "SkTDArray.h"
     21 #include "SkRefCnt.h"
     22 #include "SkString.h"
     23 
     24 class SkBitmap;
     25 class SkCanvas;
     26 class SkWStream;
     27 
     28 namespace sk_tools {
     29 
     30 class PdfRenderer : public SkRefCnt {
     31 public:
     32     virtual void init(SkPicture* pict, SkWStream* stream);
     33     virtual void setup() {}
     34     virtual bool render() = 0;
     35     virtual void end();
     36 
     37     PdfRenderer(SkPicture::EncodeBitmap encoder)
     38         : fPicture(NULL)
     39         , fEncoder(encoder)
     40         , fPdfDoc(NULL)
     41         {}
     42 
     43 protected:
     44     SkCanvas* setupCanvas(SkWStream* stream, int width, int height);
     45 
     46     SkAutoTUnref<SkCanvas> fCanvas;
     47     SkPicture* fPicture;
     48     SkPicture::EncodeBitmap fEncoder;
     49     SkAutoTUnref<SkDocument> fPdfDoc;
     50 
     51 private:
     52     typedef SkRefCnt INHERITED;
     53 };
     54 
     55 class SimplePdfRenderer : public PdfRenderer {
     56 public:
     57     SimplePdfRenderer(SkPicture::EncodeBitmap encoder)
     58         : PdfRenderer(encoder) {}
     59     virtual bool render() SK_OVERRIDE;
     60 
     61 private:
     62     typedef PdfRenderer INHERITED;
     63 };
     64 
     65 }
     66 
     67 #endif  // PdfRenderer_DEFINED
     68