/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the examples of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the either Technology Preview License Agreement or the

** Beta Release License Agreement.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

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** additional rights. These rights are described in the Nokia Qt LGPL

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** package.

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** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 3.0 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU General Public License version 3.0 requirements will be

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****************************************************************************/

#include <QStringList>

#include <QDebug>

#include "commandline.h"

static void usage(const char *appname)

{

    printf("%s [options]\n", appname);

    printf("Options:\n");

    printf("\t -h,-help       : This help\n");

#ifdef AUTO_TESTS

    printf("\t -o file        : Write output to file\n");

    printf("\t -xml           : Outputs results as XML document\n");

    printf("\t -lightxml      : Outputs results as stream of XML tags\n");

    printf("\t -script-name file  : Use this script instead of internal script file\n");

#endif

    printf("\t -resolution    : UI resolution in format WxH where width and height are positive values\n");

    printf("\t -rotation      : UI rotation in degrees\n");

    printf("\t -subtree-cache : Enables usage of subtree caching method\n");

    printf("\t -noresusage : Disables CPU and Memory usage measurement\n");

#ifndef  AUTO_TESTS

    printf("\t -fps           : Output FPS count to stdout during application execution\n");    

    printf("\t -items         : Count of items created to the list\n");

#endif

#if ENABLE_OPENGL

#ifndef QT_NO_OPENGL

    printf("\t -opengl        : Enables OpenGL usage. Building PRECONDITIONS: ENABLE_OPENGL is on. QT_NO_OPENGL is off.\n");

#endif

#endif

    printf("\n");

}

bool readSettingsFromCommandLine(int argc, char *argv[],

                  Settings& config)

{

    bool builtWithOpenGL = false;

    Settings::Options options;

#if ENABLE_OPENGL 

#ifndef QT_NO_OPENGL

    builtWithOpenGL = true;

#endif

#endif

    for (int i=0; i<argc; ++i) {

        if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-help") == 0) {

            usage(argv[0]);

            return false;

        }

#ifdef AUTO_TESTS

        if (strcmp(argv[i], "-o") == 0) {

            if (i + 1 >= argc) {

                printf("-o needs an extra parameter specifying the filename\n");

                usage(argv[0]);

                return false;

            } else {

                config.setOutputFileName(QString(argv[i+1]));

                i++;

            }

        }

        if (strcmp(argv[i], "-xml") == 0) {

            config.setResultFormat(1);  // See FileLogger::ResultFormat

        }

        if (strcmp(argv[i], "-lightxml") == 0) {

            config.setResultFormat(2);  // See FileLogger::ResultFormat

        }

        if (strcmp(argv[i], "-script-name") == 0) {

            if (i + 1 >= argc) {

                printf("-script-name  needs an extra parameter specifying the filename\n");

                usage(argv[0]);

                return false;

            } else {

                config.setScriptName(QString(argv[i+1]));

                i++;

            }

        }

#endif

        if (strcmp(argv[i], "-resolution") == 0) {

            if (i + 1 >= argc) {

                printf("-resolution needs an extra parameter specifying the application UI resolution\n");

                usage(argv[0]);

                return false;

            }

            else {

                QStringList res = QString(argv[i+1]).split("x");

                if (res.count() != 2) {

                    printf("-resolution parameter UI resolution should be set in format WxH where width and height are positive values\n");

                    usage(argv[0]);

                    return false;

                }

                int width = res.at(0).toInt();

                int height = res.at(1).toInt();

                config.setSize(QSize(width, height));

                if (width <=0 || height <=0) {

                    printf("-resolution parameter UI resolution should be set in format WxH where width and height are positive values\n");

                    usage(argv[0]);

                    return false;

                }

                i++;

            }        

        }

        if (strcmp(argv[i], "-rotation") == 0) {

            if (i + 1 >= argc) {

                printf("-rotation needs an extra parameter specifying the application UI rotation in degrees\n");

                usage(argv[0]);

                return false;

            }

            else {

                bool ok;

                int angle = QString(argv[i+1]).toInt(&ok);

                if (!ok) {

                    printf("-rotation parameter should specify rotation angle in degrees\n");

                    usage(argv[0]);

                    return false;

                }

                config.setAngle(angle);

                i++;

            }        

        }

        if (strcmp(argv[i], "-subtree-cache") == 0) {

            options |= Settings::UseListItemCache;

        }

        if (strcmp(argv[i], "-opengl") == 0) {

            if (builtWithOpenGL)

                options |= Settings::UseOpenGL;

            else {

                printf("-opengl parameter can be used only with building PRECONDITIONS: ENABLE_OPENGL is on. QT_NO_OPENGL is off.\n");

                usage(argv[0]);

                return false;

            }

        }

        if (strcmp(argv[i], "-noresusage") == 0) {

             options |= Settings::NoResourceUsage;

        }

#ifndef AUTO_TESTS

        if (strcmp(argv[i], "-fps") == 0) {

             options |= Settings::OutputFps;

        }

        if (strcmp(argv[i], "-items") == 0) {

            if (i + 1 >= argc) {

                printf("-items needs an extra parameter specifying amount of list items\n");

                usage(argv[0]);

                return false;

            }

            else {

                bool ok;

                int amount = QString(argv[i+1]).toInt(&ok);

                if (!ok) {

                    printf("-items needs an extra parameter specifying amount (integer) of list items\n");

                    usage(argv[0]);

                    return false;

                }

                config.setListItemCount(amount);

                i++;

            }

        }

#endif

    }

    config.setOptions(options);

    return true;

}