Printing: Refactor PrintSettings::Init into a PrintSettingsFactory class

per-platform.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/4040001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63907 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 70 insertions, 0 deletions

diff --git a/printing/print_settings_initializer_mac.cc b/printing/print_settings_initializer_mac.cc
new file mode 100644
index 0000000..5bb7282
--- /dev/null
+++ b/printing/print_settings_initializer_mac.cc
@@ -0,0 +1,70 @@
+// Copyright (c) 2010 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/print_settings_initializer_mac.h"
+
+#include "base/sys_string_conversions.h"
+#include "printing/print_settings.h"
+
+namespace printing {
+
+// static
+void PrintSettingsInitializerMac::InitPrintSettings(
+    PMPrinter printer,
+    PMPageFormat page_format,
+    const PageRanges& new_ranges,
+    bool print_selection_only,
+    PrintSettings* print_settings) {
+  DCHECK(print_settings);
+
+  print_settings->set_printer_name(
+      base::SysCFStringRefToWide(PMPrinterGetName(printer)));
+  print_settings->set_device_name(
+      base::SysCFStringRefToWide(PMPrinterGetID(printer)));
+  print_settings->ranges = new_ranges;
+
+  PMOrientation orientation = kPMPortrait;
+  PMGetOrientation(page_format, &orientation);
+  print_settings->set_landscape(orientation == kPMLandscape);
+  print_settings->selection_only = print_selection_only;
+
+  UInt32 resolution_count = 0;
+  PMResolution best_resolution = { 72.0, 72.0 };
+  OSStatus status = PMPrinterGetPrinterResolutionCount(printer,
+                                                       &resolution_count);
+  if (status == noErr) {
+    // Resolution indexes are 1-based.
+    for (uint32 i = 1; i <= resolution_count; ++i) {
+      PMResolution resolution;
+      PMPrinterGetIndexedPrinterResolution(printer, i, &resolution);
+      if (resolution.hRes > best_resolution.hRes)
+        best_resolution = resolution;
+    }
+  }
+  int dpi = best_resolution.hRes;
+  print_settings->set_dpi(dpi);
+
+  DCHECK_EQ(dpi, best_resolution.vRes);
+
+  // Get printable area and paper rects (in points)
+  PMRect page_rect, paper_rect;
+  PMGetAdjustedPageRect(page_format, &page_rect);
+  PMGetAdjustedPaperRect(page_format, &paper_rect);
+
+  // Device units are in points. Units per inch is 72.
+  gfx::Size physical_size_device_units(
+      (paper_rect.right - paper_rect.left),
+      (paper_rect.bottom - paper_rect.top));
+  gfx::Rect printable_area_device_units(
+      (page_rect.left - paper_rect.left),
+      (page_rect.top - paper_rect.top),
+      (page_rect.right - page_rect.left),
+      (page_rect.bottom - page_rect.top));
+
+  print_settings->SetPrinterPrintableArea(physical_size_device_units,
+                                          printable_area_device_units,
+                                          72);
+}
+
+}  // namespace printing