108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxPSSurface.h"
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#include "cairo.h"
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#include "cairo-ps.h"
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static cairo_status_t
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write_func(void *closure, const unsigned char *data, unsigned int length)
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{
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nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure);
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do {
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uint32_t wrote = 0;
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if (NS_FAILED(out->Write((const char*)data, length, &wrote)))
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break;
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data += wrote; length -= wrote;
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} while (length > 0);
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NS_ASSERTION(length == 0, "not everything was written to the file");
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return CAIRO_STATUS_SUCCESS;
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}
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gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation)
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: mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation)
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{
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mSize = mozilla::gfx::IntSize(aSizeInPoints.width, aSizeInPoints.height);
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// The PS output does not specify the page size so to print
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// landscape we need to rotate the drawing 90 degrees and print on
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// portrait paper. If printing landscape, swap the width/height
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// supplied to cairo to select a portrait print area. gfxContext
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// will perform the rotation when GetRotateForLandscape() is TRUE.
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mozilla::gfx::IntSize cairoSize;
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if (mOrientation == PORTRAIT) {
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cairoSize = mSize;
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} else {
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cairoSize = mozilla::gfx::IntSize(mSize.height, mSize.width);
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}
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cairo_surface_t* ps_surface = cairo_ps_surface_create_for_stream(write_func, (void*)mStream, cairoSize.width, cairoSize.height);
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cairo_ps_surface_restrict_to_level(ps_surface, CAIRO_PS_LEVEL_2);
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Init(ps_surface);
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}
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gfxPSSurface::~gfxPSSurface()
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{
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}
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nsresult
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gfxPSSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
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{
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if (mOrientation == PORTRAIT) {
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cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Portrait");
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} else {
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cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Landscape");
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}
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return NS_OK;
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}
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nsresult
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gfxPSSurface::EndPrinting()
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{
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return NS_OK;
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}
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nsresult
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gfxPSSurface::AbortPrinting()
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{
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return NS_OK;
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}
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nsresult
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gfxPSSurface::BeginPage()
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{
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return NS_OK;
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}
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nsresult
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gfxPSSurface::EndPage()
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{
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cairo_surface_show_page(CairoSurface());
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return NS_OK;
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}
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void
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gfxPSSurface::Finish()
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{
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gfxASurface::Finish();
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mStream->Close();
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}
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void
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gfxPSSurface::SetDPI(double xDPI, double yDPI)
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{
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mXDPI = xDPI;
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mYDPI = yDPI;
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cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
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}
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void
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gfxPSSurface::GetDPI(double *xDPI, double *yDPI)
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{
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*xDPI = mXDPI;
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*yDPI = mYDPI;
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}
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