/* -*- 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