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/*
* Functions to keep a listing of all modules in the system. Has its
* own file mostly for abstraction reasons, but is pretty simple
* otherwise.
*
* Authors:
* Ted Gould <ted@gould.cx>
* Lauris Kaplinski <lauris@kaplinski.com>
*
* Copyright (C) 2002-2004 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifndef __MODULES_DB_H__
#define __MODULES_DB_H__
#include <map>
#include <list>
#include <cstring>
#include "extension/extension.h"
namespace Inkscape {
namespace Extension {
class DB {
private:
/** A string comparison function to be used in the moduledict
to find the different extensions in the hash map. */
struct ltstr {
bool operator()(const char* s1, const char* s2) const {
if ( (s1 == NULL) && (s2 != NULL) ) {
return true;
} else if (s1 == NULL || s2 == NULL) {
return false;
} else {
return strcmp(s1, s2) < 0;
}
}
};
/** This is the actual database. It has all of the modules in it,
indexed by their ids. It's a hash table for faster lookups */
std::map <const char *, Extension *, ltstr> moduledict;
/** Maintain an ordered list of modules for generating the extension
lists via "foreach" */
std::list <Extension *> modulelist;
static void foreach_internal (gpointer in_key, gpointer in_value, gpointer in_data);
public:
DB (void);
Extension * get (const gchar *key);
void register_ext (Extension *module);
void unregister_ext (Extension *module);
void foreach (void (*in_func)(Extension * in_plug, gpointer in_data), gpointer in_data);
private:
static void input_internal (Extension * in_plug, gpointer data);
static void output_internal (Extension * in_plug, gpointer data);
static void effect_internal (Extension * in_plug, gpointer data);
public:
typedef std::list<Output *> OutputList;
typedef std::list<Input *> InputList;
typedef std::list<Effect *> EffectList;
InputList &get_input_list (InputList &ou_list);
OutputList &get_output_list (OutputList &ou_list);
EffectList &get_effect_list (EffectList &ou_list);
}; /* class DB */
extern DB db;
} } /* namespace Extension, Inkscape */
#endif /* __MODULES_DB_H__ */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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