gecko-dev/toolkit/xre/nsQAppInstance.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Corporation code.
 *
 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Oleg Romashin <romaxa@gmail.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#include "nsQAppInstance.h"
#include <QApplication>
#include "prenv.h"

// declared in nsAppRunner.cpp
extern int    gArgc;
extern char **gArgv;

QApplication *nsQAppInstance::sQAppInstance = NULL;
int nsQAppInstance::sQAppRefCount = 0;

void nsQAppInstance::AddRef(void) {
  if (qApp) return;
  if (!sQAppInstance) {
    const char *graphicsSystem = PR_GetEnv("MOZ_QT_GRAPHICSSYSTEM");
    if (graphicsSystem)
      QApplication::setGraphicsSystem(QString(graphicsSystem));
#if (MOZ_PLATFORM_MAEMO == 6)
    QApplication::setStyle(QLatin1String("windows"));
    if (!gArgc) {
      gArgv[gArgc] = strdup("nsQAppInstance");
      gArgc++;
    }
#endif
    sQAppInstance = new QApplication(gArgc, gArgv);
  }
  sQAppRefCount++;
}

void nsQAppInstance::Release(void) {
  if (sQAppInstance && !--sQAppRefCount) {
    delete sQAppInstance;
    sQAppInstance = NULL;
  }
}