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