1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxPSSurface.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,107 @@
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 "gfxPSSurface.h"
1.10 +
1.11 +#include "cairo.h"
1.12 +#include "cairo-ps.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 +gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation)
1.29 + : mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation)
1.30 +{
1.31 + mSize = gfxIntSize(aSizeInPoints.width, aSizeInPoints.height);
1.32 +
1.33 + // The PS output does not specify the page size so to print
1.34 + // landscape we need to rotate the drawing 90 degrees and print on
1.35 + // portrait paper. If printing landscape, swap the width/height
1.36 + // supplied to cairo to select a portrait print area. gfxContext
1.37 + // will perform the rotation when GetRotateForLandscape() is TRUE.
1.38 + gfxIntSize cairoSize;
1.39 + if (mOrientation == PORTRAIT) {
1.40 + cairoSize = mSize;
1.41 + } else {
1.42 + cairoSize = gfxIntSize(mSize.height, mSize.width);
1.43 + }
1.44 + cairo_surface_t* ps_surface = cairo_ps_surface_create_for_stream(write_func, (void*)mStream, cairoSize.width, cairoSize.height);
1.45 + cairo_ps_surface_restrict_to_level(ps_surface, CAIRO_PS_LEVEL_2);
1.46 + Init(ps_surface);
1.47 +}
1.48 +
1.49 +gfxPSSurface::~gfxPSSurface()
1.50 +{
1.51 +}
1.52 +
1.53 +nsresult
1.54 +gfxPSSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
1.55 +{
1.56 + if (mOrientation == PORTRAIT) {
1.57 + cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Portrait");
1.58 + } else {
1.59 + cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Landscape");
1.60 + }
1.61 + return NS_OK;
1.62 +}
1.63 +
1.64 +nsresult
1.65 +gfxPSSurface::EndPrinting()
1.66 +{
1.67 + return NS_OK;
1.68 +}
1.69 +
1.70 +nsresult
1.71 +gfxPSSurface::AbortPrinting()
1.72 +{
1.73 + return NS_OK;
1.74 +}
1.75 +
1.76 +nsresult
1.77 +gfxPSSurface::BeginPage()
1.78 +{
1.79 + return NS_OK;
1.80 +}
1.81 +
1.82 +nsresult
1.83 +gfxPSSurface::EndPage()
1.84 +{
1.85 + cairo_surface_show_page(CairoSurface());
1.86 + return NS_OK;
1.87 +}
1.88 +
1.89 +void
1.90 +gfxPSSurface::Finish()
1.91 +{
1.92 + gfxASurface::Finish();
1.93 + mStream->Close();
1.94 +}
1.95 +
1.96 +void
1.97 +gfxPSSurface::SetDPI(double xDPI, double yDPI)
1.98 +{
1.99 + mXDPI = xDPI;
1.100 + mYDPI = yDPI;
1.101 + cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
1.102 +}
1.103 +
1.104 +void
1.105 +gfxPSSurface::GetDPI(double *xDPI, double *yDPI)
1.106 +{
1.107 + *xDPI = mXDPI;
1.108 + *yDPI = mYDPI;
1.109 +}
1.110 +
