109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
/****************************************************************************
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* MeshLab o o *
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* An extendible mesh processor o o *
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* _ O _ *
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* Copyright(C) 2005, 2009 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef GETOPT_H
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#define GETOPT_H
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#include <QString>
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#include <QStringList>
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#include <QMap>
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#include <QVariant>
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/* Example usage:
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QString file1, file2;
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QString o_gamma = "10";
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QString o_scale = "0.7";
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GetOpt opt(argc, argv);
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opt.addArgument("img1", "first image", &file1);
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opt.addArgument("img2", "second image", &file2);
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opt.addOption('g', "gamma", "weigth to derivatives of images (default: 10)", &o_gamma);
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opt.addOption('s', "scale", "scale [0.5-0.99] for multiscale approach (default: 0.7)", &o_scale);
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opt.parse(); */
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class GetOpt {
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protected:
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struct Option {
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enum Type { SWITCH, OPTION, ARGUMENT, OPTIONAL };
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Type type;
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char o;
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QString name;
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QString description;
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QVariant *value;
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bool *b;
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};
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bool unlimitedArgs;
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QList<Option> options;
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public:
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QString appname; //application name
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QString help; //help text
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QStringList args; //original argument vector
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QStringList arguments; //arbitrary long list of arguments if unlimitedArgs is true
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GetOpt(): unlimitedArgs(false) {}
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GetOpt(int argc, char *argv[] );
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GetOpt(const QStringList &a);
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//add an option without a value
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void addSwitch(char s, const QString &longname, const QString &description, bool *b );
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//add a valued option (v will be left untouched if the option is not given)
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void addOption(char s, const QString &longname, const QString &description, QVariant *v);
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//add an argument
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void addArgument(const QString &name, const QString &description, QVariant *v);
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//add an optional agrument
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void addOptionalArgument(const QString &name, const QString &description, QVariant *v);
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//allow an unlimited number of optional arguments
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void allowUnlimitedArguments(bool allow) { unlimitedArgs = allow; }
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//set help if someone uses -h or --help option
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void setHelp(QString &_help) { help = _help; }
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//parses the command line and fill variables or print an error message and exits
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void parse();
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//return usage string
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QString usage();
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//return argv[0]
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QString &applicationName();
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protected:
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//parses and return true on success
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bool parse(QString &error);
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//return options or switch
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bool findOption(char c, Option &option);
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//return any named argument
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bool findArg(const QString &name, Option &option);
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//split desc into n pieces of the right length TODO: check for newlines also
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QString formatDesc(QString desc, int len);
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};
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#endif
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