widget/nsPrintOptionsImpl.h
author Chris H-C <chutten@mozilla.com>
Mon, 04 Jul 2016 11:16:05 -0400
changeset 312997 df28918fe2361f0b54ca9ce4773a29c4c0675d06
parent 240460 9e1d3ea762968d090fd4c945de5e3838c1bd3ec9
permissions -rw-r--r--
bug 1218576 - Support remote accumulation via JS histograms. r=gfritzsche The JS histograms, too, need to dispatch their accumulations from child to parent. JSHistograms_Add now only supports histograms that are in gHistogramsMap or that were created in the parent process. After bug 1288745, maybe we'll be able to change this to be less convoluted. MozReview-Commit-ID: 3qTH89YKbGP

/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsPrintOptionsImpl_h__
#define nsPrintOptionsImpl_h__

#include "mozilla/embedding/PPrinting.h"
#include "nsCOMPtr.h"
#include "nsIPrintOptions.h"
#include "nsIPrintSettingsService.h"
#include "nsString.h"
#include "nsFont.h"

class nsIPrintSettings;

/**
 *   Class nsPrintOptions
 */
class nsPrintOptions : public nsIPrintOptions,
                       public nsIPrintSettingsService
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIPRINTOPTIONS
  NS_DECL_NSIPRINTSETTINGSSERVICE

  /**
   * method Init
   *  Initializes member variables. Every consumer that does manual
   *  creation (instead of do_CreateInstance) needs to call this method
   *  immediately after instantiation.
   */
  virtual nsresult Init();

  nsPrintOptions();

protected:
  virtual ~nsPrintOptions();

  void ReadBitFieldPref(const char * aPrefId, int32_t anOption);
  void WriteBitFieldPref(const char * aPrefId, int32_t anOption);
  void ReadJustification(const char * aPrefId, int16_t& aJust,
                         int16_t aInitValue);
  void WriteJustification(const char * aPrefId, int16_t aJust);
  void ReadInchesToTwipsPref(const char * aPrefId, int32_t&  aTwips,
                             const char * aMarginPref);
  void WriteInchesFromTwipsPref(const char * aPrefId, int32_t aTwips);
  void ReadInchesIntToTwipsPref(const char * aPrefId, int32_t&  aTwips,
                                const char * aMarginPref);
  void WriteInchesIntFromTwipsPref(const char * aPrefId, int32_t aTwips);

  nsresult ReadPrefDouble(const char * aPrefId, double& aVal);
  nsresult WritePrefDouble(const char * aPrefId, double aVal);

  /**
   * method ReadPrefs
   * @param aPS          a pointer to the printer settings
   * @param aPrinterName the name of the printer for which to read prefs
   * @param aFlags       flag specifying which prefs to read
   */
  virtual nsresult ReadPrefs(nsIPrintSettings* aPS, const nsAString&
                             aPrinterName, uint32_t aFlags);
  /**
   * method WritePrefs
   * @param aPS          a pointer to the printer settings
   * @param aPrinterName the name of the printer for which to write prefs
   * @param aFlags       flag specifying which prefs to read
   */
  virtual nsresult WritePrefs(nsIPrintSettings* aPS, const nsAString& aPrefName,
                              uint32_t aFlags);
  const char* GetPrefName(const char *     aPrefName,
                          const nsAString&  aPrinterName);

  /**
   * method _CreatePrintSettings
   *   May be implemented by the platform-specific derived class
   *
   * @return             printer settings instance
   */
  virtual nsresult _CreatePrintSettings(nsIPrintSettings **_retval);

  // Members
  nsCOMPtr<nsIPrintSettings> mGlobalPrintSettings;

  nsCString mPrefName;

private:
  // These are not supported and are not implemented!
  nsPrintOptions(const nsPrintOptions& x);
  nsPrintOptions& operator=(const nsPrintOptions& x);
};

#endif /* nsPrintOptionsImpl_h__ */