mirror of
https://github.com/clementine-player/Clementine
synced 2024-12-24 16:51:59 +01:00
87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
/** ParamUtils.hpp:
|
|
* A collection of utility functions to make using parameter types easier.
|
|
* In reality, this stuff belongs elsewhere, but one step at a time
|
|
*/
|
|
#ifndef _PARAM_UTILS_HPP
|
|
#define _PARAM_UTILS_HPP
|
|
|
|
#include "Param.hpp"
|
|
#include <map>
|
|
#include <cassert>
|
|
#include "BuiltinParams.hpp"
|
|
|
|
class ParamUtils
|
|
{
|
|
public:
|
|
static bool insert(Param * param, std::map<std::string,Param*> * paramTree)
|
|
{
|
|
|
|
assert(param);
|
|
assert(paramTree);
|
|
|
|
|
|
return ((paramTree->insert(std::make_pair(param->name,param))).second);
|
|
|
|
}
|
|
|
|
static const int AUTO_CREATE = 1;
|
|
static const int NO_CREATE = 0;
|
|
|
|
template <int FLAGS>
|
|
static Param * find(std::string name, std::map<std::string,Param*> * paramTree)
|
|
{
|
|
|
|
assert(paramTree);
|
|
|
|
Param * param;
|
|
|
|
/* First look in the suggested database */
|
|
std::map<std::string,Param*>::iterator pos = paramTree->find(name);
|
|
|
|
|
|
if ((FLAGS == AUTO_CREATE) && ((pos == paramTree->end())))
|
|
{
|
|
/* Check if string is valid */
|
|
if (!Param::is_valid_param_string(name.c_str()))
|
|
return NULL;
|
|
|
|
/* Now, create the user defined parameter given the passed name */
|
|
if ((param = new Param(name)) == NULL)
|
|
return NULL;
|
|
|
|
/* Finally, insert the new parameter into this preset's parameter tree */
|
|
std::pair<std::map<std::string,Param*>::iterator, bool> insertRetPair =
|
|
paramTree->insert(std::make_pair(param->name, param));
|
|
|
|
assert(insertRetPair.second);
|
|
|
|
} else if (pos != paramTree->end())
|
|
param = pos->second;
|
|
else
|
|
param = NULL;
|
|
|
|
/* Return the found (or created) parameter. Note that this could be null */
|
|
return param;
|
|
|
|
|
|
}
|
|
|
|
|
|
static Param * find(const std::string & name, BuiltinParams * builtinParams, std::map<std::string,Param*> * insertionTree)
|
|
{
|
|
|
|
Param * param;
|
|
|
|
// Check first db
|
|
if ((param = builtinParams->find_builtin_param(name)) != 0)
|
|
return param;
|
|
|
|
// Check second db, create if necessary
|
|
return find<AUTO_CREATE>(name, insertionTree);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
#endif
|