mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
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 -*-
|
|
* 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 "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 {
|
|
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;
|
|
}
|
|
|
|
gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation)
|
|
: mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation)
|
|
{
|
|
mSize = mozilla::gfx::IntSize(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.
|
|
mozilla::gfx::IntSize cairoSize;
|
|
if (mOrientation == PORTRAIT) {
|
|
cairoSize = mSize;
|
|
} else {
|
|
cairoSize = mozilla::gfx::IntSize(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;
|
|
}
|
|
|