PrintPreview: [MAC] Set the color setting in print ticket.

BUG=none
TEST= Enable print preview on mac. Preview any webpage. Change the color setting. Press the print button. Observe the color in printed output page.

Review URL: http://codereview.chromium.org/6821052

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81286 0039d316-1c4b-4281-b951-d872f2087c98

printing/printing_context_mac.h

@@ -67,6 +67,10 @@ class PrintingContextMac : public PrintingContext {
   // Returns true if duplex mode is set.
   bool SetDuplexModeIsTwoSided(bool two_sided);
 
+  // Sets output color mode in PMPrintSettings.
+  // Returns true if color mode is set.
+  bool SetOutputIsColor(bool color);
+
   // The native print info object.
   scoped_nsobject<NSPrintInfo> print_info_;
 

printing/printing_context_mac.mm

@@ -14,6 +14,9 @@
 #include "printing/print_job_constants.h"
 #include "printing/print_settings_initializer_mac.h"
 
+static const CFStringRef kColorModel = CFSTR("ColorModel");
+static const CFStringRef kGrayColor = CFSTR("Gray");
+
 namespace printing {
 
 // static
@@ -94,11 +97,13 @@
   int copies;
   bool collate;
   bool two_sided;
+  bool color;
   if (!job_settings.GetBoolean(kSettingLandscape, &landscape) ||
       !job_settings.GetString(kSettingPrinterName, &printer_name) ||
       !job_settings.GetInteger(kSettingCopies, &copies) ||
       !job_settings.GetBoolean(kSettingCollate, &collate) ||
-      !job_settings.GetBoolean(kSettingTwoSided, &two_sided)) {
+      !job_settings.GetBoolean(kSettingTwoSided, &two_sided) ||
+      !job_settings.GetBoolean(kSettingColor, &color)) {
     return OnError();
   }
 
@@ -117,6 +122,9 @@
   if (!SetDuplexModeIsTwoSided(two_sided))
     return OnError();
 
+  if (!SetOutputIsColor(color))
+    return OnError();
+
   [print_info_.get() updateFromPMPrintSettings];
 
   InitPrintSettingsFromPrintInfo(ranges);
@@ -185,6 +193,17 @@
   return PMSetDuplex(pmPrintSettings, duplexSetting) == noErr;
 }
 
+bool PrintingContextMac::SetOutputIsColor(bool color) {
+  PMPrintSettings pmPrintSettings =
+      static_cast<PMPrintSettings>([print_info_.get() PMPrintSettings]);
+  CFStringRef output_color = color ? NULL : kGrayColor;
+
+  return PMPrintSettingsSetValue(pmPrintSettings,
+                                 kColorModel,
+                                 output_color,
+                                 false) == noErr;
+}
+
 void PrintingContextMac::ParsePrintInfo(NSPrintInfo* print_info) {
   ResetSettings();
   print_info_.reset([print_info retain]);