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libsaria: Create a new way to save files 

I inherit from the ifstream class, so I can override the insertion
operator for string handling.  I can then use templates to save
everything else.
This commit is contained in:
Bryan Schumaker 2011-12-25 21:16:09 -05:00
parent 603a76964b
commit 5e308202a0
3 changed files with 56 additions and 8 deletions
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17
include/libsaria/files.h
View File

@ -57,4 +57,21 @@ class InFile
ino_t read_ino();
};
class InFile2 : public ifstream
{
public:
InFile2(string);
~InFile2();
void operator>>(string &);
template <class T>
void operator>>(T &);
};
template <class T>
void InFile2::operator>>(T &item)
{
ifstream *in = (ifstream *)this;
*in >> item;
}
#endif /* LIBSARIA_FILES_H */

29
libsaria/path/files.cpp
View File

@ -153,3 +153,32 @@ ino_t InFile::read_ino()
in >> i;
return i;
}
InFile2::InFile2(string path)
{
string in_file = get_saria_dir() + "/" + path;
open(in_file.c_str());
if (!good())
println("Error opening file: " + in_file);
}
InFile2::~InFile2()
{
close();
}
void InFile2::operator>>(string &res)
{
int len;
res = "";
*this >> len;
if (len == 0)
return;
len++;
this->get();
char c[len];
this->get(c, len);
res = c;
}

18
libsaria/prefs.cpp
View File

@ -20,18 +20,20 @@ struct Preference {
static map<string, Preference> preferences;
static void load_pref(InFile &in)
static void load_pref(InFile2 &in)
{
Preference p;
string key = in.read_str();
p.type = (pref_t)in.read_ui();
string key;
in >> key;
in >> (unsigned int&)p.type;
switch (p.type) {
case BOOL:
p.value_u.boolean = in.read_int();
in >> p.value_u.boolean;
println("preferences[" + key + "] = %d", p.value_u.boolean);
break;
case FLOAT:
p.value_u.floating = in.read_float();
in >> p.value_u.floating;
println("preferences[" + key + "] = %f", p.value_u.floating);
break;
default:
@ -76,12 +78,12 @@ namespace libsaria
void prefs::load()
{
unsigned int size;
InFile in("preferences");
unsigned int size = 0;
InFile2 in("preferences");
if (!in.good())
return;
size = in.read_ui();
in >> size;
println("Preferences size: %d", size);
for (unsigned int i = 0; i < size; i++)
load_pref(in);