1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
#ifndef SETTINGS_H
#define SETTINGS_H
#include <map>
#include <memory>
#include <stdexcept>
#include <string>
#include <vector>
class SettingValue
{
public:
virtual ~SettingValue() { }
virtual std::string ValueToString() const = 0;
virtual void SetFromString(const std::string& valueStr) = 0;
virtual std::unique_ptr<SettingValue> Create() const = 0;
};
class StringSetting final : public SettingValue
{
public:
StringSetting() { }
StringSetting(const std::string& value) { _value = value; }
std::string& Value() { return _value; }
const std::string& Value() const { return _value; }
std::string ValueToString() const override { return _value; }
void SetFromString(const std::string& valueStr) override { _value = valueStr; }
std::unique_ptr<SettingValue> Create() const override { return std::unique_ptr<SettingValue>(new StringSetting(_value)); }
private:
std::string _value;
};
class SettingItem
{
public:
SettingItem(std::unique_ptr<SettingValue> defaultValue) : _defaultValue(std::move(defaultValue))
{ }
bool HasValue() const { return _value != nullptr; }
SettingValue& Value() { return *_value; }
void SetValue(std::unique_ptr<SettingValue> value) { _value = std::move(value); }
const SettingValue& DefaultValue() const { return *_defaultValue; }
const SettingValue& ValueOrDefault() const { return _value==nullptr ? *_defaultValue : *_value; }
void MakeDefault() { _value.reset(); }
private:
std::unique_ptr<SettingValue> _value, _defaultValue;
};
class Settings
{
public:
Settings();
static std::string GetConfigDir();
std::string GetStrategyFilename() const;
void Load();
void Save() const;
void InitializeWorkStrategy();
std::vector<std::string> RecentFiles() const { return getStrArr("recent-files", 10); }
void SetRecentFiles(const std::vector<std::string>& recentFiles) { return setStrArr("recent-files", recentFiles); }
std::vector<std::string> RecentStrategies() const { return getStrArr("recent-strategies", 10); }
void SetRecentStrategies(const std::vector<std::string>& recentStrategies) { return setStrArr("recent-strategies", recentStrategies); }
private:
static std::string getConfigFilename();
void initStr(const std::string& key, const std::string& defaultStr)
{
_settings.emplace(key, std::unique_ptr<SettingValue>(new StringSetting(defaultStr)));
}
void initStrArray(const std::string& key, const std::vector<std::string>& defaultVal)
{
for(size_t i=0; i!=defaultVal.size(); ++i)
_settings.emplace(key + '[' + std::to_string(i) + ']', std::unique_ptr<SettingValue>(new StringSetting(defaultVal[i])));
}
void set(const std::string& key, const std::string& value)
{
auto iter = _settings.find(key);
if(iter == _settings.end())
throw std::runtime_error("Unknown setting in settings file: " + key);
if(!iter->second.HasValue())
iter->second.SetValue(iter->second.DefaultValue().Create());
iter->second.Value().SetFromString(value);
}
std::string getStr(const std::string& key) const
{
return static_cast<const StringSetting&>(_settings.find(key)->second.ValueOrDefault()).Value();
}
void setStr(const std::string& key, const std::string& value)
{
SettingItem& item = _settings.find(key)->second;
if(static_cast<const StringSetting&>(item.DefaultValue()).Value() == value)
item.MakeDefault();
else {
if(!item.HasValue())
item.SetValue(item.DefaultValue().Create());
static_cast<StringSetting&>(item.Value()).Value() = value;
}
}
std::vector<std::string> getStrArr(const std::string& key, size_t n) const
{
std::vector<std::string> arr(n);
for(size_t i=0; i!=n; ++i)
arr[i] = getStr(key + '[' + std::to_string(i) + ']');
return arr;
}
void setStrArr(const std::string& key, const std::vector<std::string>& values)
{
for(size_t i=0; i!=values.size(); ++i)
setStr(key + '[' + std::to_string(i) + ']', values[i]);
}
std::map<std::string, SettingItem> _settings;
};
#endif
|
