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/*
* This source file is part of MyGUI. For the latest info, see http://mygui.info/
* Distributed under the MIT License
* (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
*/
#ifndef MYGUI_FLOW_DIRECTION_H_
#define MYGUI_FLOW_DIRECTION_H_
#include "MyGUI_Prerequest.h"
#include <string>
namespace MyGUI
{
struct MYGUI_EXPORT FlowDirection
{
enum Enum
{
LeftToRight,
RightToLeft,
TopToBottom,
BottomToTop,
MAX
};
FlowDirection(Enum _value = LeftToRight) :
mValue(_value)
{
}
static FlowDirection parse(const std::string& _value)
{
FlowDirection type;
int value = 0;
while (true)
{
const char* name = type.getValueName(value);
if (strcmp(name, "") == 0 || name == _value) break;
value++;
}
type.mValue = (Enum)value;
return type;
}
bool isHorizontal() const
{
return mValue == LeftToRight || mValue == RightToLeft;
}
bool isVertical() const
{
return !isHorizontal();
}
friend bool operator == (FlowDirection const& a, FlowDirection const& b)
{
return a.mValue == b.mValue;
}
friend bool operator != (FlowDirection const& a, FlowDirection const& b)
{
return a.mValue != b.mValue;
}
friend std::ostream& operator << ( std::ostream& _stream, const FlowDirection& _value )
{
_stream << _value.getValueName(_value.mValue);
return _stream;
}
friend std::istream& operator >> ( std::istream& _stream, FlowDirection& _value )
{
std::string value;
_stream >> value;
_value = parse(value);
return _stream;
}
std::string print() const
{
return getValueName(mValue);
}
int getValue() const
{
return mValue;
}
private:
const char* getValueName(int _index) const
{
static const char* values[MAX + 1] = { "LeftToRight", "RightToLeft", "TopToBottom", "BottomToTop", "" };
return values[(_index < MAX && _index >= 0) ? _index : MAX];
}
private:
Enum mValue;
};
} // namespace MyGUI
#endif // MYGUI_FLOW_DIRECTION_H_
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