gecko/gfx/thebes/gfxPDFSurface.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2012-05-21 04:12:37 -07:00
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gfxPDFSurface.h"
#include "cairo.h"
#include "cairo-pdf.h"
static cairo_status_t
write_func(void *closure, const unsigned char *data, unsigned int length)
{
nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure);
do {
uint32_t wrote = 0;
if (NS_FAILED(out->Write((const char*)data, length, &wrote)))
break;
data += wrote; length -= wrote;
} while (length > 0);
NS_ASSERTION(length == 0, "not everything was written to the file");
return CAIRO_STATUS_SUCCESS;
}
gfxPDFSurface::gfxPDFSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints)
: mStream(aStream), mXDPI(-1), mYDPI(-1), mSize(aSizeInPoints)
{
Init(cairo_pdf_surface_create_for_stream(write_func, (void*)mStream, mSize.width, mSize.height));
}
gfxPDFSurface::~gfxPDFSurface()
{
}
nsresult
gfxPDFSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
{
return NS_OK;
}
nsresult
gfxPDFSurface::EndPrinting()
{
return NS_OK;
}
nsresult
gfxPDFSurface::AbortPrinting()
{
return NS_OK;
}
nsresult
gfxPDFSurface::BeginPage()
{
return NS_OK;
}
nsresult
gfxPDFSurface::EndPage()
{
cairo_surface_show_page(CairoSurface());
return NS_OK;
}
void
gfxPDFSurface::Finish()
{
gfxASurface::Finish();
mStream->Close();
}
void
gfxPDFSurface::SetDPI(double xDPI, double yDPI)
{
mXDPI = xDPI;
mYDPI = yDPI;
cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
}
void
gfxPDFSurface::GetDPI(double *xDPI, double *yDPI)
{
*xDPI = mXDPI;
*yDPI = mYDPI;
}