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-rw-r--r--gfx/thebes/PrintTargetWindows.cpp120
1 files changed, 120 insertions, 0 deletions
diff --git a/gfx/thebes/PrintTargetWindows.cpp b/gfx/thebes/PrintTargetWindows.cpp
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+++ b/gfx/thebes/PrintTargetWindows.cpp
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 paper size, the actual surface size will be the printable
+ // area which is likely smaller, but the size here is later used to create the
+ // draw target where the full page size is needed.
+ // 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, PHYSICALWIDTH) * POINTS_PER_INCH_FLOAT) / heightDPI;
+ float height =
+ (::GetDeviceCaps(aDC, PHYSICALHEIGHT) * 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,
+ int32_t aStartPage,
+ int32_t aEndPage) {
+ 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;
+
+ // If the user selected Microsoft Print to PDF or XPS Document Printer, then
+ // the following StartDoc call will put up a dialog window to prompt the
+ // user to provide the name and location of the file to be saved. A zero or
+ // negative return value indicates failure. In that case we want to check
+ // whether that is because the user hit Cancel, since we want to treat that
+ // specially to avoid notifying the user that the print "failed" in that
+ // case.
+ // XXX We should perhaps introduce a new NS_ERROR_USER_CANCELLED errer.
+ int result = ::StartDocW(mDC, &docinfo);
+ if (result <= 0) {
+ if (::GetLastError() == ERROR_CANCELLED) {
+ return NS_ERROR_ABORT;
+ }
+ return NS_ERROR_FAILURE;
+ }
+ return NS_OK;
+}
+
+nsresult PrintTargetWindows::EndPrinting() {
+ int result = ::EndDoc(mDC);
+ return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
+}
+
+nsresult PrintTargetWindows::AbortPrinting() {
+ PrintTarget::AbortPrinting();
+ int result = ::AbortDoc(mDC);
+ return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
+}
+
+nsresult PrintTargetWindows::BeginPage() {
+ PrintTarget::BeginPage();
+ int result = ::StartPage(mDC);
+ return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
+}
+
+nsresult PrintTargetWindows::EndPage() {
+ cairo_surface_show_page(mCairoSurface);
+ PrintTarget::EndPage();
+ int result = ::EndPage(mDC);
+ return (result <= 0) ? NS_ERROR_FAILURE : NS_OK;
+}
+
+} // namespace gfx
+} // namespace mozilla