khanat-code-old/code/nel/include/nel/misc/rect.h

116 lines
2.4 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef NL_RECT_H
#define NL_RECT_H
#include "types_nl.h"
namespace NLMISC {
class CVector2f;
/**
* This class describe an integer 2d rectangle.
* \author Cyril Corvazier
* \author Nevrax France
* \date 2000
*/
class CRect
{
public:
/// default ctor
CRect() {}
/// Constructor with a 2d point, a width and a height
CRect (sint32 x, sint32 y, uint32 width, uint32 height);
/// Constructor with a single 2d point. Build a rectangle with width and height = 0.
CRect (sint32 x, sint32 y)
{
X=x;
Y=y;
Width=0;
Height=0;
}
/// Set from a 2d point, a width and a height
void setWH(sint32 x, sint32 y, uint32 width, uint32 height);
/// Set from 2 2d points
void set(sint32 x0, sint32 y0, sint32 x1, sint32 y1);
/// Extend the box for including the point which coordinates are passed in parameter.
void extend (sint32 x, sint32 y);
/// Return the lower X coordinate of the box
sint32 left() const
{
return X;
}
/// Return the higher X coordinate of the box + 1
sint32 right() const
{
return X+(sint32)Width;
}
/// Return the lower Y coordinate of the box
sint32 top() const
{
return Y;
}
/// Return the higher Y coordinate of the box + 1
sint32 bottom() const
{
return Y+(sint32)Height;
}
/// Compute the x center of the rectangle
sint32 getXCenter() const
{
return X+(sint32)(Width>>1);
}
/// Compute the y center of the rectangle
sint32 getYCenter() const
{
return Y+(sint32)(Height>>1);
}
/// Lower X coordinate of the rect
sint32 X;
/// Lower Y coordinate of the rect
sint32 Y;
/// Width of the rect
uint32 Width;
/// Height of the rect
uint32 Height;
};
} // NLMISC
#endif // NL_RECT_H
/* End of rect.h */