/usr/include/cegui-0.8.4/CEGUI/Size.h is in libcegui-mk2-dev 0.8.4+dfsg-4ubuntu1.
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created: 14/3/2004
author: Paul D Turner
purpose: Defines interface for Size class
*************************************************************************/
/***************************************************************************
* Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/
#ifndef _CEGUISize_h_
#define _CEGUISize_h_
#include "CEGUI/UDim.h"
#include "CEGUI/Vector.h"
#include <typeinfo>
#include <ostream>
// Start of CEGUI namespace section
namespace CEGUI
{
/*!
\brief
How aspect ratio should be maintained
*/
enum AspectMode
{
//! Ignores the target aspect (default)
AM_IGNORE,
/*!
Satisfies the aspect ratio by shrinking the size as little
as possible to fit inside it
*/
AM_SHRINK,
/*!
Satisfies the aspect ratio by expanding the widget as little
as possible outside it
*/
AM_EXPAND
};
/*!
\brief
Class that holds the size (width & height) of something.
*/
template<typename T>
class Size:
public AllocatedObject<Size<T> >
{
public:
typedef T value_type;
inline Size()
{}
inline Size(const T width, const T height):
d_width(width),
d_height(height)
{}
inline Size(const Size& v):
d_width(v.d_width),
d_height(v.d_height)
{}
inline bool operator==(const Size& other) const
{
return d_width == other.d_width && d_height == other.d_height;
}
inline bool operator!=(const Size& other) const
{
return !operator==(other);
}
inline Size operator*(const T c) const
{
return Size(d_width * c, d_height * c);
}
inline Size operator*(const Size& s) const
{
return Size(d_width * s.d_width, d_height * s.d_height);
}
inline Size operator*(const Vector2f& vec) const
{
return Size(d_width * vec.d_x, d_height * vec.d_y);
}
inline Size operator+(const Size& s) const
{
return Size(d_width + s.d_width, d_height + s.d_height);
}
inline Size operator-(const Size& s) const
{
return Size(d_width - s.d_width, d_height - s.d_height);
}
inline void clamp(const Size& min, const Size& max)
{
assert(min.d_width <= max.d_width);
assert(min.d_height <= max.d_height);
if (d_width < min.d_width)
d_width = min.d_width;
else if (d_width > max.d_width)
d_width = max.d_width;
if (d_height < min.d_height)
d_height = min.d_height;
else if (d_height > max.d_height)
d_height = max.d_height;
}
inline void scaleToAspect(AspectMode mode, T ratio)
{
if (mode == AM_IGNORE)
return;
if(d_width <= 0 && d_height <= 0)
return;
assert(ratio > 0);
const T expectedWidth = d_height * ratio;
const bool keepHeight = (mode == AM_SHRINK) ?
expectedWidth <= d_width : expectedWidth >= d_width;
if (keepHeight)
{
d_width = expectedWidth;
}
else
{
d_height = d_width / ratio;
}
}
/*!
\brief allows writing the size to std ostream
*/
inline friend std::ostream& operator << (std::ostream& s, const Size& v)
{
s << "CEGUI::Size<" << typeid(T).name() << ">(" << v.d_width << ", " << v.d_height << ")";
return s;
}
//! \brief finger saving alias for Size(side, side)
inline static Size square(const T side)
{
return Size(side, side);
}
//! \brief finger saving alias for Size(0, 0)
inline static Size zero()
{
return square(TypeSensitiveZero<T>());
}
//! \brief finger saving alias for Size(1, 1)
inline static Size one()
{
return square(TypeSensitiveOne<T>());
}
//! \brief finger saving alias for Size(1, 0)
inline static Size one_width()
{
return Size(TypeSensitiveOne<T>(), TypeSensitiveZero<T>());
}
//! \brief finger saving alias for Size(0, 1)
inline static Size one_height()
{
return Size(TypeSensitiveOne<T>(), TypeSensitiveZero<T>());
}
T d_width;
T d_height;
};
// the main reason for this is to keep C++ API in sync with other languages
typedef Size<float> Sizef;
typedef Size<UDim> USize;
inline USize operator*(const USize& i, float x)
{
return i * UDim(x,x);
}
} // End of CEGUI namespace section
#endif // end of guard _CEGUISize_h_
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