Implement the basic OS-level printing mechanics on Mac
Part two of printing implementation on the Mac. This adds a Mac implementation of PrintSettings to get page setup and printer information, basic PDF->context rendering in PrintedDocument, and most of PrintingContext to allow getting print settings (both default and interactive).
Reworks the message flow a bit when asking for print settings on the Mac, since it can only be done from the UI thread. Uses a modal dialog for now, but will later be modified further to allow for a sheet.
BUG=13158
TEST=None; no user-visible effect yet.
Review URL: http://codereview.chromium.org/268036
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28857 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/printing/printed_document_win.cc b/printing/printed_document_win.cc
new file mode 100644
index 0000000..12d5a1a
--- /dev/null
+++ b/printing/printed_document_win.cc
@@ -0,0 +1,142 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "printing/printed_document.h"
+
+#include "app/win_util.h"
+#include "app/gfx/font.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "printing/page_number.h"
+#include "printing/page_overlays.h"
+#include "printing/printed_pages_source.h"
+#include "printing/printed_page.h"
+#include "printing/units.h"
+#include "skia/ext/platform_device.h"
+
+#if defined(OS_WIN)
+namespace {
+
+void SimpleModifyWorldTransform(HDC context,
+ int offset_x,
+ int offset_y,
+ double shrink_factor) {
+ XFORM xform = { 0 };
+ xform.eDx = static_cast<float>(offset_x);
+ xform.eDy = static_cast<float>(offset_y);
+ xform.eM11 = xform.eM22 = static_cast<float>(1. / shrink_factor);
+ BOOL res = ModifyWorldTransform(context, &xform, MWT_LEFTMULTIPLY);
+ DCHECK_NE(res, 0);
+}
+
+void DrawRect(HDC context, gfx::Rect rect) {
+ Rectangle(context, rect.x(), rect.y(), rect.right(), rect.bottom());
+}
+
+} // namespace
+#endif // OS_WIN
+
+namespace printing {
+
+void PrintedDocument::RenderPrintedPage(
+ const PrintedPage& page, gfx::NativeDrawingContext context) const {
+#ifndef NDEBUG
+ {
+ // Make sure the page is from our list.
+ AutoLock lock(lock_);
+ DCHECK(&page == mutable_.pages_.find(page.page_number() - 1)->second.get());
+ }
+#endif
+
+ const printing::PageSetup& page_setup(
+ immutable_.settings_.page_setup_pixels());
+
+ // Save the state to make sure the context this function call does not modify
+ // the device context.
+ int saved_state = SaveDC(context);
+ DCHECK_NE(saved_state, 0);
+ skia::PlatformDevice::InitializeDC(context);
+ {
+ // Save the state (again) to apply the necessary world transformation.
+ int saved_state = SaveDC(context);
+ DCHECK_NE(saved_state, 0);
+
+#if 0
+ // Debug code to visually verify margins (leaks GDI handles).
+ XFORM debug_xform = { 0 };
+ ModifyWorldTransform(context, &debug_xform, MWT_IDENTITY);
+ // Printable area:
+ SelectObject(context, CreatePen(PS_SOLID, 1, RGB(0, 0, 0)));
+ SelectObject(context, CreateSolidBrush(RGB(0x90, 0x90, 0x90)));
+ Rectangle(context,
+ 0,
+ 0,
+ page_setup.printable_area().width(),
+ page_setup.printable_area().height());
+ // Overlay area:
+ gfx::Rect debug_overlay_area(page_setup.overlay_area());
+ debug_overlay_area.Offset(-page_setup.printable_area().x(),
+ -page_setup.printable_area().y());
+ SelectObject(context, CreateSolidBrush(RGB(0xb0, 0xb0, 0xb0)));
+ DrawRect(context, debug_overlay_area);
+ // Content area:
+ gfx::Rect debug_content_area(page_setup.content_area());
+ debug_content_area.Offset(-page_setup.printable_area().x(),
+ -page_setup.printable_area().y());
+ SelectObject(context, CreateSolidBrush(RGB(0xd0, 0xd0, 0xd0)));
+ DrawRect(context, debug_content_area);
+#endif
+
+ // Setup the matrix to translate and scale to the right place. Take in
+ // account the actual shrinking factor.
+ // Note that the printing output is relative to printable area of the page.
+ // That is 0,0 is offset by PHYSICALOFFSETX/Y from the page.
+ SimpleModifyWorldTransform(
+ context,
+ page_setup.content_area().x() - page_setup.printable_area().x(),
+ page_setup.content_area().y() - page_setup.printable_area().y(),
+ mutable_.shrink_factor);
+
+ if (!page.native_metafile()->SafePlayback(context)) {
+ NOTREACHED();
+ }
+
+ BOOL res = RestoreDC(context, saved_state);
+ DCHECK_NE(res, 0);
+ }
+
+ // Print the header and footer. Offset by printable area offset (see comment
+ // above).
+ SimpleModifyWorldTransform(
+ context,
+ -page_setup.printable_area().x(),
+ -page_setup.printable_area().y(),
+ 1);
+ int base_font_size = gfx::Font().height();
+ int new_font_size = ConvertUnit(10,
+ immutable_.settings_.desired_dpi,
+ immutable_.settings_.dpi());
+ DCHECK_GT(new_font_size, base_font_size);
+ gfx::Font font(gfx::Font().DeriveFont(new_font_size - base_font_size));
+ HGDIOBJ old_font = SelectObject(context, font.hfont());
+ DCHECK(old_font != NULL);
+ // We don't want a white square around the text ever if overflowing.
+ SetBkMode(context, TRANSPARENT);
+ PrintHeaderFooter(context, page, PageOverlays::LEFT, PageOverlays::TOP,
+ font);
+ PrintHeaderFooter(context, page, PageOverlays::CENTER, PageOverlays::TOP,
+ font);
+ PrintHeaderFooter(context, page, PageOverlays::RIGHT, PageOverlays::TOP,
+ font);
+ PrintHeaderFooter(context, page, PageOverlays::LEFT, PageOverlays::BOTTOM,
+ font);
+ PrintHeaderFooter(context, page, PageOverlays::CENTER, PageOverlays::BOTTOM,
+ font);
+ PrintHeaderFooter(context, page, PageOverlays::RIGHT, PageOverlays::BOTTOM,
+ font);
+ int res = RestoreDC(context, saved_state);
+ DCHECK_NE(res, 0);
+}
+
+} // namespace printing
