printing/print_settings_initializer_mac.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "printing/print_settings_initializer_mac.h"
   6
   7 #include "base/strings/sys_string_conversions.h"
   8 #include "printing/print_settings.h"
   9
  10 namespace printing {
  11
  12 // static
  13 void PrintSettingsInitializerMac::InitPrintSettings(
  14     PMPrinter printer,
  15     PMPageFormat page_format,
  16     const PageRanges& new_ranges,
  17     bool print_selection_only,
  18     PrintSettings* print_settings) {
  19   DCHECK(print_settings);
  20
  21   print_settings->set_printer_name(
  22       base::SysCFStringRefToUTF16(PMPrinterGetName(printer)));
  23   print_settings->set_device_name(
  24       base::SysCFStringRefToUTF16(PMPrinterGetID(printer)));
  25   print_settings->ranges = new_ranges;
  26
  27   PMOrientation orientation = kPMPortrait;
  28   PMGetOrientation(page_format, &orientation);
  29   print_settings->set_landscape(orientation == kPMLandscape);
  30   print_settings->selection_only = print_selection_only;
  31
  32   UInt32 resolution_count = 0;
  33   PMResolution best_resolution = { 72.0, 72.0 };
  34   OSStatus status = PMPrinterGetPrinterResolutionCount(printer,
  35                                                        &resolution_count);
  36   if (status == noErr) {
  37     // Resolution indexes are 1-based.
  38     for (uint32 i = 1; i <= resolution_count; ++i) {
  39       PMResolution resolution;
  40       PMPrinterGetIndexedPrinterResolution(printer, i, &resolution);
  41       if (resolution.hRes > best_resolution.hRes)
  42         best_resolution = resolution;
  43     }
  44   }
  45   int dpi = best_resolution.hRes;
  46   print_settings->set_dpi(dpi);
  47
  48   DCHECK_EQ(dpi, best_resolution.vRes);
  49
  50   // Get printable area and paper rects (in points)
  51   PMRect page_rect, paper_rect;
  52   PMGetAdjustedPageRect(page_format, &page_rect);
  53   PMGetAdjustedPaperRect(page_format, &paper_rect);
  54
  55   // Device units are in points. Units per inch is 72.
  56   gfx::Size physical_size_device_units(
  57       (paper_rect.right - paper_rect.left),
  58       (paper_rect.bottom - paper_rect.top));
  59   gfx::Rect printable_area_device_units(
  60       (page_rect.left - paper_rect.left),
  61       (page_rect.top - paper_rect.top),
  62       (page_rect.right - page_rect.left),
  63       (page_rect.bottom - page_rect.top));
  64
  65   print_settings->SetPrinterPrintableArea(physical_size_device_units,
  66                                           printable_area_device_units,
  67                                           72);
  68 }
  69
  70 }  // namespace printing