The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/doc/SkDocument_PDF.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,108 @@
     1.4 +/*
     1.5 + * Copyright 2013 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "SkDocument.h"
    1.12 +#include "SkPDFDocument.h"
    1.13 +#include "SkPDFDeviceFlattener.h"
    1.14 +
    1.15 +class SkDocument_PDF : public SkDocument {
    1.16 +public:
    1.17 +    SkDocument_PDF(SkWStream* stream, void (*doneProc)(SkWStream*,bool),
    1.18 +                   SkPicture::EncodeBitmap encoder,
    1.19 +                   SkScalar rasterDpi)
    1.20 +            : SkDocument(stream, doneProc)
    1.21 +            , fEncoder(encoder)
    1.22 +            , fRasterDpi(rasterDpi) {
    1.23 +        fDoc = SkNEW(SkPDFDocument);
    1.24 +        fCanvas = NULL;
    1.25 +        fDevice = NULL;
    1.26 +    }
    1.27 +
    1.28 +    virtual ~SkDocument_PDF() {
    1.29 +        // subclasses must call close() in their destructors
    1.30 +        this->close();
    1.31 +    }
    1.32 +
    1.33 +protected:
    1.34 +    virtual SkCanvas* onBeginPage(SkScalar width, SkScalar height,
    1.35 +                                  const SkRect& trimBox) SK_OVERRIDE {
    1.36 +        SkASSERT(NULL == fCanvas);
    1.37 +        SkASSERT(NULL == fDevice);
    1.38 +
    1.39 +        SkSize mediaBoxSize;
    1.40 +        mediaBoxSize.set(width, height);
    1.41 +
    1.42 +        fDevice = SkNEW_ARGS(SkPDFDeviceFlattener, (mediaBoxSize, &trimBox));
    1.43 +        if (fEncoder) {
    1.44 +            fDevice->setDCTEncoder(fEncoder);
    1.45 +        }
    1.46 +        if (fRasterDpi != 0) {
    1.47 +            fDevice->setRasterDpi(fRasterDpi);
    1.48 +        }
    1.49 +        fCanvas = SkNEW_ARGS(SkCanvas, (fDevice));
    1.50 +        return fCanvas;
    1.51 +    }
    1.52 +
    1.53 +    virtual void onEndPage() SK_OVERRIDE {
    1.54 +        SkASSERT(fCanvas);
    1.55 +        SkASSERT(fDevice);
    1.56 +
    1.57 +        fCanvas->flush();
    1.58 +        fDoc->appendPage(fDevice);
    1.59 +
    1.60 +        fCanvas->unref();
    1.61 +        fDevice->unref();
    1.62 +
    1.63 +        fCanvas = NULL;
    1.64 +        fDevice = NULL;
    1.65 +    }
    1.66 +
    1.67 +    virtual bool onClose(SkWStream* stream) SK_OVERRIDE {
    1.68 +        SkASSERT(NULL == fCanvas);
    1.69 +        SkASSERT(NULL == fDevice);
    1.70 +
    1.71 +        bool success = fDoc->emitPDF(stream);
    1.72 +        SkDELETE(fDoc);
    1.73 +        fDoc = NULL;
    1.74 +        return success;
    1.75 +    }
    1.76 +
    1.77 +    virtual void onAbort() SK_OVERRIDE {
    1.78 +        SkDELETE(fDoc);
    1.79 +        fDoc = NULL;
    1.80 +    }
    1.81 +
    1.82 +private:
    1.83 +    SkPDFDocument*  fDoc;
    1.84 +    SkPDFDeviceFlattener* fDevice;
    1.85 +    SkCanvas*       fCanvas;
    1.86 +    SkPicture::EncodeBitmap fEncoder;
    1.87 +    SkScalar        fRasterDpi;
    1.88 +};
    1.89 +
    1.90 +///////////////////////////////////////////////////////////////////////////////
    1.91 +
    1.92 +SkDocument* SkDocument::CreatePDF(SkWStream* stream, void (*done)(SkWStream*,bool),
    1.93 +                                  SkPicture::EncodeBitmap enc,
    1.94 +                                  SkScalar dpi) {
    1.95 +    return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done, enc, dpi)) : NULL;
    1.96 +}
    1.97 +
    1.98 +static void delete_wstream(SkWStream* stream, bool aborted) {
    1.99 +    SkDELETE(stream);
   1.100 +}
   1.101 +
   1.102 +SkDocument* SkDocument::CreatePDF(const char path[],
   1.103 +                                  SkPicture::EncodeBitmap enc,
   1.104 +                                  SkScalar dpi) {
   1.105 +    SkFILEWStream* stream = SkNEW_ARGS(SkFILEWStream, (path));
   1.106 +    if (!stream->isValid()) {
   1.107 +        SkDELETE(stream);
   1.108 +        return NULL;
   1.109 +    }
   1.110 +    return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream, enc, dpi));
   1.111 +}