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Jesse Beder
2014-03-22 12:49:16 -05:00
parent e40ed4f94e
commit 9b4db068bb
78 changed files with 21905 additions and 21720 deletions
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174
src/setting.h
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@@ -1,105 +1,99 @@
#ifndef SETTING_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#define SETTING_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#if defined(_MSC_VER) || \
(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#pragma once
#endif
#include <memory>
#include <vector>
#include "yaml-cpp/noncopyable.h"
namespace YAML
{
class SettingChangeBase;
template <typename T>
class Setting
{
public:
Setting(): m_value() {}
const T get() const { return m_value; }
std::auto_ptr <SettingChangeBase> set(const T& value);
void restore(const Setting<T>& oldSetting) {
m_value = oldSetting.get();
}
private:
T m_value;
};
namespace YAML {
class SettingChangeBase;
class SettingChangeBase
{
public:
virtual ~SettingChangeBase() {}
virtual void pop() = 0;
};
template <typename T>
class SettingChange: public SettingChangeBase
{
public:
SettingChange(Setting<T> *pSetting): m_pCurSetting(pSetting) {
// copy old setting to save its state
m_oldSetting = *pSetting;
}
virtual void pop() {
m_pCurSetting->restore(m_oldSetting);
}
template <typename T>
class Setting {
public:
Setting() : m_value() {}
private:
Setting<T> *m_pCurSetting;
Setting<T> m_oldSetting;
};
const T get() const { return m_value; }
std::auto_ptr<SettingChangeBase> set(const T& value);
void restore(const Setting<T>& oldSetting) { m_value = oldSetting.get(); }
template <typename T>
inline std::auto_ptr <SettingChangeBase> Setting<T>::set(const T& value) {
std::auto_ptr <SettingChangeBase> pChange(new SettingChange<T> (this));
m_value = value;
return pChange;
}
class SettingChanges: private noncopyable
{
public:
SettingChanges() {}
~SettingChanges() { clear(); }
void clear() {
restore();
for(setting_changes::const_iterator it=m_settingChanges.begin();it!=m_settingChanges.end();++it)
delete *it;
m_settingChanges.clear();
}
void restore() {
for(setting_changes::const_iterator it=m_settingChanges.begin();it!=m_settingChanges.end();++it)
(*it)->pop();
}
void push(std::auto_ptr <SettingChangeBase> pSettingChange) {
m_settingChanges.push_back(pSettingChange.release());
}
// like std::auto_ptr - assignment is transfer of ownership
SettingChanges& operator = (SettingChanges& rhs) {
if(this == &rhs)
return *this;
clear();
m_settingChanges = rhs.m_settingChanges;
rhs.m_settingChanges.clear();
return *this;
}
private:
typedef std::vector <SettingChangeBase *> setting_changes;
setting_changes m_settingChanges;
};
private:
T m_value;
};
class SettingChangeBase {
public:
virtual ~SettingChangeBase() {}
virtual void pop() = 0;
};
template <typename T>
class SettingChange : public SettingChangeBase {
public:
SettingChange(Setting<T>* pSetting) : m_pCurSetting(pSetting) {
// copy old setting to save its state
m_oldSetting = *pSetting;
}
virtual void pop() { m_pCurSetting->restore(m_oldSetting); }
private:
Setting<T>* m_pCurSetting;
Setting<T> m_oldSetting;
};
template <typename T>
inline std::auto_ptr<SettingChangeBase> Setting<T>::set(const T& value) {
std::auto_ptr<SettingChangeBase> pChange(new SettingChange<T>(this));
m_value = value;
return pChange;
}
#endif // SETTING_H_62B23520_7C8E_11DE_8A39_0800200C9A66
class SettingChanges : private noncopyable {
public:
SettingChanges() {}
~SettingChanges() { clear(); }
void clear() {
restore();
for (setting_changes::const_iterator it = m_settingChanges.begin();
it != m_settingChanges.end(); ++it)
delete *it;
m_settingChanges.clear();
}
void restore() {
for (setting_changes::const_iterator it = m_settingChanges.begin();
it != m_settingChanges.end(); ++it)
(*it)->pop();
}
void push(std::auto_ptr<SettingChangeBase> pSettingChange) {
m_settingChanges.push_back(pSettingChange.release());
}
// like std::auto_ptr - assignment is transfer of ownership
SettingChanges& operator=(SettingChanges& rhs) {
if (this == &rhs)
return *this;
clear();
m_settingChanges = rhs.m_settingChanges;
rhs.m_settingChanges.clear();
return *this;
}
private:
typedef std::vector<SettingChangeBase*> setting_changes;
setting_changes m_settingChanges;
};
}
#endif // SETTING_H_62B23520_7C8E_11DE_8A39_0800200C9A66