genesis-3d_engine/Engine/addons/myguiengine/include/MyGUI_FlowDirection.h

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/*!
@file
@author Albert Semenov
@date 12/2008
*/
/*
This file is part of MyGUI.
MyGUI is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
MyGUI is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
*/
#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) :
value(_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.value = (Enum)value;
return type;
}
bool isHorizontal() const
{
return value == LeftToRight || value == RightToLeft;
}
bool isVertical() const
{
return !isHorizontal();
}
friend bool operator == (FlowDirection const& a, FlowDirection const& b)
{
return a.value == b.value;
}
friend bool operator != (FlowDirection const& a, FlowDirection const& b)
{
return a.value != b.value;
}
friend std::ostream& operator << ( std::ostream& _stream, const FlowDirection& _value )
{
_stream << _value.getValueName(_value.value);
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(value);
}
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 value;
};
} // namespace MyGUI
#endif // __MYGUI_FLOW_DIRECTION_H__