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livetrax/libs/glibmm2/glibmm/optioncontext.h

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// -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GLIBMM_OPTIONCONTEXT_H
#define _GLIBMM_OPTIONCONTEXT_H
/* $Id$ */
/* Copyright (C) 2004 The glibmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm/optionentry.h>
#include <glibmm/optiongroup.h>
#include <glibmm/error.h>
#ifndef DOXYGEN_SHOULD_SKIP_THIS
extern "C" { typedef struct _GOptionContext GOptionContext; }
#endif
namespace Glib
{
/** Exception class for options.
*/
class OptionError : public Glib::Error
{
public:
enum Code
{
UNKNOWN_OPTION,
BAD_VALUE,
FAILED
};
OptionError(Code error_code, const Glib::ustring& error_message);
explicit OptionError(GError* gobject);
Code code() const;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
private:
static void throw_func(GError* gobject);
friend void wrap_init(); // uses throw_func()
#endif
};
/** An OptionContext defines which options are accepted by the commandline option parser.
*/
class OptionContext
{
public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef OptionContext CppObjectType;
typedef GOptionContext BaseObjectType;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
private:
public:
/** Creates a new option context.
* @param parameter_string A string which is displayed in the first line of --help output, after programname [OPTION...]
*/
explicit OptionContext(const Glib::ustring& parameter_string = Glib::ustring());
//Note that, unlike Glib::Wrap(), this would create a second C++ instance for the same C instance,
//so it should be used carefully. For instance you could not access data in a derived class via this second instance.
explicit OptionContext(GOptionContext* castitem, bool take_ownership = false);
virtual ~OptionContext();
/** Enables or disables automatic generation of &lt;option&gt;--help&lt;/option&gt;
* output. By default, g_option_context_parse() recognizes
* &lt;option&gt;--help&lt;/option&gt;, &lt;option&gt;-?&lt;/option&gt;, &lt;option&gt;--help-all&lt;/option&gt;
* and &lt;option&gt;--help-&lt;/option&gt;&lt;replaceable&gt;groupname&lt;/replaceable&gt; and creates
* suitable output to stdout.
*
* Since: 2.6
* @param help_enabled <tt>true</tt> to enable &lt;option&gt;--help&lt;/option&gt;, <tt>false</tt> to disable it.
*/
void set_help_enabled(bool help_enabled = true);
/** Returns whether automatic &lt;option&gt;--help&lt;/option&gt; generation
* is turned on for @a context . See g_option_context_set_help_enabled().
* @return <tt>true</tt> if automatic help generation is turned on.
*
* Since: 2.6.
*/
bool get_help_enabled() const;
/** Sets whether to ignore unknown options or not. If an argument is
* ignored, it is left in the @a argv array after parsing. By default,
* g_option_context_parse() treats unknown options as error.
*
* This setting does not affect non-option arguments (i.e. arguments
* which don't start with a dash). But note that GOption cannot reliably
* determine whether a non-option belongs to a preceding unknown option.
*
* Since: 2.6
* @param ignore_unknown <tt>true</tt> to ignore unknown options, <tt>false</tt> to produce
* an error when unknown options are met.
*/
void set_ignore_unknown_options(bool ignore_unknown = true);
/** Returns whether unknown options are ignored or not. See
* g_option_context_set_ignore_unknown_options().
* @return <tt>true</tt> if unknown options are ignored.
*
* Since: 2.6.
*/
bool get_ignore_unknown_options() const;
/** Parses the command line arguments, recognizing options
* which have been added to @a context . A side-effect of
* calling this function is that g_set_prgname() will be
* called.
*
* If the parsing is successful, any parsed arguments are
* removed from the array and @a argc and @a argv are updated
* accordingly. In case of an error, @a argc and @a argv are
* left unmodified.
*
* If automatic &lt;option&gt;--help&lt;/option&gt; support is enabled
* (see g_option_context_set_help_enabled()), and the
* @a argv array contains one of the recognized help options,
* this function will produce help output to stdout and
* call <tt>exit (0)</tt>.
* @param argc A pointer to the number of command line arguments.
* @param argv A pointer to the array of command line arguments.
* @param error A return location for errors.
* @return <tt>true</tt> if the parsing was successful,
* <tt>false</tt> if an error occurred
*
* Since: 2.6.
*/
bool parse(int& argc, char**& argv);
//g_option_context_add_main_entries(), just creates a group internally, adds them to it, and does a set_main_group()
//- a group without callbacks seems to do some simple default parsing.
/** Adds an OptionGroup to the context, so that parsing with context will recognize the options in the group.
* Note that the group will not be copied, so it should exist for as long as the context exists.
*
* @param group The group to add.
*/
void add_group(OptionGroup& group);
/** Sets an OptionGroup as the main group of the context. This has the same effect as calling add_group(), the only
* difference is that the options in the main group are treated differently when generating --help output.
* Note that the group will not be copied, so it should exist for as long as the context exists.
*
* @param group The group to add.
*/
void set_main_group(OptionGroup& group);
//We don't need this (hopefully), and the memory management would be really awkward.
//OptionGroup& get_main_group();
//const OptionGroup& get_main_group() const;
GOptionContext* gobj() { return gobject_; }
const GOptionContext* gobj() const { return gobject_; }
protected:
GOptionContext* gobject_;
bool has_ownership_;
};
} // namespace Glib
#endif /* _GLIBMM_OPTIONCONTEXT_H */