gfx/thebes/gfxPDFSurface.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/thebes/gfxPDFSurface.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,86 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "gfxPDFSurface.h"
    1.10 +
    1.11 +#include "cairo.h"
    1.12 +#include "cairo-pdf.h"
    1.13 +
    1.14 +static cairo_status_t
    1.15 +write_func(void *closure, const unsigned char *data, unsigned int length)
    1.16 +{
    1.17 +    nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure);
    1.18 +    do {
    1.19 +        uint32_t wrote = 0;
    1.20 +        if (NS_FAILED(out->Write((const char*)data, length, &wrote)))
    1.21 +            break;
    1.22 +        data += wrote; length -= wrote;
    1.23 +    } while (length > 0);
    1.24 +    NS_ASSERTION(length == 0, "not everything was written to the file");
    1.25 +    return CAIRO_STATUS_SUCCESS;
    1.26 +}
    1.27 +
    1.28 +gfxPDFSurface::gfxPDFSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints)
    1.29 +    : mStream(aStream), mXDPI(-1), mYDPI(-1), mSize(aSizeInPoints)
    1.30 +{
    1.31 +    Init(cairo_pdf_surface_create_for_stream(write_func, (void*)mStream, mSize.width, mSize.height));
    1.32 +}
    1.33 +
    1.34 +gfxPDFSurface::~gfxPDFSurface()
    1.35 +{
    1.36 +}
    1.37 +
    1.38 +nsresult
    1.39 +gfxPDFSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
    1.40 +{
    1.41 +    return NS_OK;
    1.42 +}
    1.43 +
    1.44 +nsresult
    1.45 +gfxPDFSurface::EndPrinting()
    1.46 +{
    1.47 +    return NS_OK;
    1.48 +}
    1.49 +
    1.50 +nsresult
    1.51 +gfxPDFSurface::AbortPrinting()
    1.52 +{
    1.53 +    return NS_OK;
    1.54 +}
    1.55 +
    1.56 +nsresult
    1.57 +gfxPDFSurface::BeginPage()
    1.58 +{
    1.59 +    return NS_OK;
    1.60 +}
    1.61 +
    1.62 +nsresult
    1.63 +gfxPDFSurface::EndPage()
    1.64 +{
    1.65 +    cairo_surface_show_page(CairoSurface());
    1.66 +    return NS_OK;
    1.67 +}
    1.68 +
    1.69 +void
    1.70 +gfxPDFSurface::Finish()
    1.71 +{
    1.72 +    gfxASurface::Finish();
    1.73 +    mStream->Close();
    1.74 +}
    1.75 +
    1.76 +void
    1.77 +gfxPDFSurface::SetDPI(double xDPI, double yDPI)
    1.78 +{
    1.79 +    mXDPI = xDPI;
    1.80 +    mYDPI = yDPI;
    1.81 +    cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
    1.82 +}
    1.83 +
    1.84 +void
    1.85 +gfxPDFSurface::GetDPI(double *xDPI, double *yDPI)
    1.86 +{
    1.87 +    *xDPI = mXDPI;
    1.88 +    *yDPI = mYDPI;
    1.89 +}

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