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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include "Core/precomp.h"
#include "API/Core/Math/rect.h"
#include <cmath>
#define cl_min(a,b) ((a < b) ? a : b)
#define cl_max(a,b) ((a > b) ? a : b)
CL_Rect CL_Rect::get_rot_bounds(const CL_Point &hotspot, float angle) const
{
//Find the rotated positions of each corner
CL_Rect retVal(*this);
CL_Point ul = CL_Point(retVal.left, retVal.top).rotate(hotspot, angle);
CL_Point ur = CL_Point(retVal.right, retVal.top).rotate(hotspot, angle);
CL_Point ll = CL_Point(retVal.left, retVal.bottom).rotate(hotspot, angle);
CL_Point lr = CL_Point(retVal.right, retVal.bottom).rotate(hotspot, angle);
//Use the sidemost corners as the bounds of the new rectangle
retVal.left = cl_min(cl_min(ul.x, ur.x), cl_min(ll.x, lr.x));
retVal.right = cl_max(cl_max(ul.x, ur.x), cl_max(ll.x, lr.x));
retVal.top = cl_min(cl_min(ul.y, ur.y), cl_min(ll.y, lr.y));
retVal.bottom = cl_max(cl_max(ul.y, ur.y), cl_max(ll.y, lr.y));
return retVal;
}
CL_Rect CL_Rect::get_rot_bounds(CL_Origin origin, int x, int y, float angle) const
{
return get_rot_bounds(
CL_Point(left, top) + calc_origin(origin, get_size()) + CL_Point(x, y),
angle);
}
CL_Rectf CL_Rectf::get_rot_bounds(const CL_Pointf &hotspot, float angle) const
{
//Find the rotated positions of each corner
CL_Rectf retVal(*this);
CL_Pointf ul = CL_Pointf(retVal.left, retVal.top).rotate(hotspot, angle);
CL_Pointf ur = CL_Pointf(retVal.right, retVal.top).rotate(hotspot, angle);
CL_Pointf ll = CL_Pointf(retVal.left, retVal.bottom).rotate(hotspot, angle);
CL_Pointf lr = CL_Pointf(retVal.right, retVal.bottom).rotate(hotspot, angle);
//Use the sidemost corners as the bounds of the new rectangle
retVal.left = cl_min(cl_min(ul.x, ur.x), cl_min(ll.x, lr.x));
retVal.right = cl_max(cl_max(ul.x, ur.x), cl_max(ll.x, lr.x));
retVal.top = cl_min(cl_min(ul.y, ur.y), cl_min(ll.y, lr.y));
retVal.bottom = cl_max(cl_max(ul.y, ur.y), cl_max(ll.y, lr.y));
return retVal;
}
CL_Rectf CL_Rectf::get_rot_bounds(CL_Origin origin, float x, float y, float angle) const
{
return get_rot_bounds(
CL_Pointf(left, top) + calc_origin(origin, get_size()) + CL_Pointf(x, y),
angle);
}
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