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/* -*- 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 "PrintTargetWindows.h"
#include "cairo-win32.h"
#include "mozilla/gfx/HelpersCairo.h"
#include "nsCoord.h"
#include "nsString.h"
namespace mozilla {
namespace gfx {
PrintTargetWindows::PrintTargetWindows(cairo_surface_t* aCairoSurface,
const IntSize& aSize,
HDC aDC)
: PrintTarget(aCairoSurface, aSize)
, mDC(aDC)
{
// TODO: At least add basic memory reporting.
// 4 * mSize.width * mSize.height + sizeof(PrintTargetWindows) ?
}
/* static */ already_AddRefed<PrintTargetWindows>
PrintTargetWindows::CreateOrNull(HDC aDC)
{
// Figure out the cairo surface size - Windows we need to use the printable
// area of the page. Note: we only scale the printing using the LOGPIXELSY,
// so we use that when calculating the surface width as well as the height.
int32_t heightDPI = ::GetDeviceCaps(aDC, LOGPIXELSY);
float width =
(::GetDeviceCaps(aDC, HORZRES) * POINTS_PER_INCH_FLOAT) / heightDPI;
float height =
(::GetDeviceCaps(aDC, VERTRES) * POINTS_PER_INCH_FLOAT) / heightDPI;
IntSize size = IntSize::Truncate(width, height);
if (!Factory::CheckSurfaceSize(size)) {
return nullptr;
}
cairo_surface_t* surface = cairo_win32_printing_surface_create(aDC);
if (cairo_surface_status(surface)) {
return nullptr;
}
// The new object takes ownership of our surface reference.
RefPtr<PrintTargetWindows> target =
new PrintTargetWindows(surface, size, aDC);
return target.forget();
}
nsresult
PrintTargetWindows::BeginPrinting(const nsAString& aTitle,
const nsAString& aPrintToFileName)
{
const uint32_t DOC_TITLE_LENGTH = MAX_PATH - 1;
DOCINFOW docinfo;
nsString titleStr(aTitle);
if (titleStr.Length() > DOC_TITLE_LENGTH) {
titleStr.SetLength(DOC_TITLE_LENGTH - 3);
titleStr.AppendLiteral("...");
}
nsString docName(aPrintToFileName);
docinfo.cbSize = sizeof(docinfo);
docinfo.lpszDocName = titleStr.Length() > 0 ? titleStr.get() : L"Mozilla Document";
docinfo.lpszOutput = docName.Length() > 0 ? docName.get() : nullptr;
docinfo.lpszDatatype = nullptr;
docinfo.fwType = 0;
::StartDocW(mDC, &docinfo);
return NS_OK;
}
nsresult
PrintTargetWindows::EndPrinting()
{
int result = ::EndDoc(mDC);
return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
}
nsresult
PrintTargetWindows::AbortPrinting()
{
int result = ::AbortDoc(mDC);
return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
}
nsresult
PrintTargetWindows::BeginPage()
{
int result = ::StartPage(mDC);
return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
}
nsresult
PrintTargetWindows::EndPage()
{
cairo_surface_show_page(mCairoSurface);
int result = ::EndPage(mDC);
return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
}
} // namespace gfx
} // namespace mozilla
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