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OpenDB/include/opendb/dbTransform.h
2020-03-20 18:12:24 -07:00

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3.9 KiB
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///////////////////////////////////////////////////////////////////////////////
// BSD 3-Clause License
//
// Copyright (c) 2019, Nefelus Inc
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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#pragma once
#include "odb.h"
#include "dbTypes.h"
#include "geom.h"
namespace odb {
class dbOStream;
class dbIStream;
class dbDiff;
//
// Database Transform - Transform points by rotation and translation.
//
class dbTransform
{
friend class _dbBlock;
dbOrientType::Value _orient;
Point _offset;
public:
// T = <R0, (0,0)>
dbTransform() : _orient(dbOrientType::R0), _offset(0, 0) {}
// T = <R0, offset>
dbTransform(Point offset) : _orient(dbOrientType::R0), _offset(offset) {}
// T = <orient, (0,0)>
dbTransform(dbOrientType orient) : _orient(orient), _offset(0, 0) {}
// T = <orient, offset>
dbTransform(dbOrientType orient, Point offset)
: _orient(orient), _offset(offset)
{
}
bool operator==(const dbTransform& t) const
{
return (_orient == t._orient) && (_offset == t._offset);
}
bool operator!=(const dbTransform& t) const { return !operator==(t); }
void setOrient(dbOrientType orient) { _orient = orient; }
void setOffset(Point offset) { _offset = offset; }
void setTransform(dbOrientType orient, Point offset)
{
_orient = orient;
_offset = offset;
}
// Apply transform to this point
void apply(Point& p) const;
// Apply transform to this point
void apply(Rect& r) const;
// Post multiply transform.
void concat(const dbTransform& t);
// Post multiply transform
void concat(const dbTransform& t, dbTransform& result);
// Compute inverse transform
void invert(dbTransform& result) const;
// Compute inverse transform
void invert();
dbOrientType getOrient() const { return _orient; }
Point getOffset() const { return _offset; }
friend dbOStream& operator<<(dbOStream& stream, const dbTransform& t);
friend dbIStream& operator>>(dbIStream& stream, dbTransform& t);
friend dbDiff& operator<<(dbDiff& diff, const dbTransform& t);
};
dbOStream& operator<<(dbOStream& stream, const dbTransform& t);
dbIStream& operator>>(dbIStream& stream, dbTransform& t);
dbDiff& operator<<(dbDiff& diff, const dbTransform& t);
inline void dbTransform::concat(const dbTransform& t)
{
dbTransform result;
concat(t, result);
*this = result;
}
inline void dbTransform::invert()
{
dbTransform result;
invert(result);
*this = result;
}
} // namespace odb