gecko/gfx/thebes/gfxPSSurface.cpp
Adrian Johnson ca5502b6f3 Bug 624699. Fix some landscape printing bugs. r=roc
Specifically:
1) Only rotate print output for PostScript, not PDF.
2) Rotate in the correct direction for PostScript.
3) Set the %%Orientation comment correctly.
2011-07-14 13:02:20 -04:00

140 lines
4.2 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Foundation Code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@pavlov.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#include "gfxPSSurface.h"
#include "cairo.h"
#include "cairo-ps.h"
static cairo_status_t
write_func(void *closure, const unsigned char *data, unsigned int length)
{
nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure);
do {
PRUint32 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;
}
gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation)
: mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation)
{
mSize = gfxIntSize(aSizeInPoints.width, aSizeInPoints.height);
// The PS output does not specify the page size so to print
// landscape we need to rotate the drawing 90 degrees and print on
// portrait paper. If printing landscape, swap the width/height
// supplied to cairo to select a portrait print area. gfxContext
// will perform the rotation when GetRotateForLandscape() is TRUE.
gfxIntSize cairoSize;
if (mOrientation == PORTRAIT) {
cairoSize = mSize;
} else {
cairoSize = gfxIntSize(mSize.height, mSize.width);
}
cairo_surface_t* ps_surface = cairo_ps_surface_create_for_stream(write_func, (void*)mStream, cairoSize.width, cairoSize.height);
cairo_ps_surface_restrict_to_level(ps_surface, CAIRO_PS_LEVEL_2);
Init(ps_surface);
}
gfxPSSurface::~gfxPSSurface()
{
}
nsresult
gfxPSSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
{
if (mOrientation == PORTRAIT) {
cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Portrait");
} else {
cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Landscape");
}
return NS_OK;
}
nsresult
gfxPSSurface::EndPrinting()
{
return NS_OK;
}
nsresult
gfxPSSurface::AbortPrinting()
{
return NS_OK;
}
nsresult
gfxPSSurface::BeginPage()
{
return NS_OK;
}
nsresult
gfxPSSurface::EndPage()
{
cairo_surface_show_page(CairoSurface());
return NS_OK;
}
void
gfxPSSurface::Finish()
{
gfxASurface::Finish();
mStream->Close();
}
void
gfxPSSurface::SetDPI(double xDPI, double yDPI)
{
mXDPI = xDPI;
mYDPI = yDPI;
cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
}
void
gfxPSSurface::GetDPI(double *xDPI, double *yDPI)
{
*xDPI = mXDPI;
*yDPI = mYDPI;
}