printing/print_settings_initializer_mac.cc

   1 // Copyright 2011 The Chromium Authors
   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 <stdint.h>
   8
   9 #include "base/strings/sys_string_conversions.h"
  10 #include "printing/print_settings.h"
  11 #include "printing/units.h"
  12
  13 namespace printing {
  14
  15 // static
  16 void PrintSettingsInitializerMac::InitPrintSettings(
  17     PMPrinter printer,
  18     PMPageFormat page_format,
  19     PrintSettings* print_settings) {
  20   print_settings->set_device_name(
  21       base::SysCFStringRefToUTF16(PMPrinterGetID(printer)));
  22
  23   PMOrientation orientation = kPMPortrait;
  24   PMGetOrientation(page_format, &orientation);
  25   print_settings->SetOrientation(orientation == kPMLandscape);
  26
  27   UInt32 resolution_count = 0;
  28   PMResolution best_resolution = {kDefaultMacDpi, kDefaultMacDpi};
  29   OSStatus status =
  30       PMPrinterGetPrinterResolutionCount(printer, &resolution_count);
  31   if (status == noErr) {
  32     // Resolution indexes are 1-based.
  33     for (uint32_t i = 1; i <= resolution_count; ++i) {
  34       PMResolution resolution;
  35       PMPrinterGetIndexedPrinterResolution(printer, i, &resolution);
  36       if (resolution.hRes > best_resolution.hRes)
  37         best_resolution = resolution;
  38     }
  39   }
  40   int dpi = best_resolution.hRes;
  41   print_settings->set_dpi(dpi);
  42
  43   DCHECK_EQ(dpi, best_resolution.vRes);
  44
  45   // Get printable area and paper rects (in points)
  46   PMRect page_rect, paper_rect;
  47   PMGetAdjustedPageRect(page_format, &page_rect);
  48   PMGetAdjustedPaperRect(page_format, &paper_rect);
  49
  50   // Device units are in points. Units per inch is 72.
  51   gfx::Size physical_size_device_units((paper_rect.right - paper_rect.left),
  52                                        (paper_rect.bottom - paper_rect.top));
  53   gfx::Rect printable_area_device_units(
  54       (page_rect.left - paper_rect.left), (page_rect.top - paper_rect.top),
  55       (page_rect.right - page_rect.left), (page_rect.bottom - page_rect.top));
  56
  57   DCHECK_EQ(print_settings->device_units_per_inch(), kPointsPerInch);
  58   print_settings->SetPrinterPrintableArea(physical_size_device_units,
  59                                           printable_area_device_units, false);
  60 }
  61
  62 }  // namespace printing