finalcut/include/final/frect.h

231 lines
7.2 KiB
C++

/***********************************************************************
* frect.h - Rectangle with position and size *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2014-2018 Markus Gans *
* *
* The Final Cut 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. *
* *
* The Final Cut 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 this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
/* Standalone class
* ════════════════
*
* ▕▔▔▔▔▔▔▔▏1 *▕▔▔▔▔▔▔▔▔▏
* ▕ FRect ▏- - - -▕ FPoint ▏
* ▕▁▁▁▁▁▁▁▏ ▕▁▁▁▁▁▁▁▁▏
*/
#ifndef FRECT_H
#define FRECT_H
#if !defined (USE_FINAL_H) && !defined (COMPILE_FINAL_CUT)
#error "Only <final/final.h> can be included directly."
#endif
#include <algorithm>
#include "final/fpoint.h"
//----------------------------------------------------------------------
// class FRect
//----------------------------------------------------------------------
#pragma pack(push)
#pragma pack(1)
class FRect
{
public:
// Constructors
FRect ();
FRect (const FRect&); // copy constructor
FRect (int, int, int, int);
FRect (const FPoint&, const FPoint&);
// Destructor
virtual ~FRect();
// Overloaded operators
FRect& operator = (const FRect&);
friend FRect operator + (const FRect&, const FPoint&);
friend FRect operator - (const FRect&, const FPoint&);
friend bool operator == (const FRect&, const FRect&);
friend bool operator != (const FRect&, const FRect&);
friend std::ostream& operator << (std::ostream&, const FRect&);
friend std::istream& operator >> (std::istream&, FRect&);
// Accessors
virtual const char* getClassName();
int getX1() const;
int getY1() const;
int getX2() const;
int getY2() const;
int getX() const;
int getY() const;
FPoint getPos() const;
FPoint getUpperLeftPos() const;
FPoint getUpperRightPos() const;
FPoint getLowerLeftPos() const;
FPoint getLowerRightPos() const;
int getWidth() const;
int getHeight() const;
// Mutators
void setX1 (int);
void setY1 (int);
void setX2 (int);
void setY2 (int);
void setX (int);
void setY (int);
void setPos (int, int);
void setPos (const FPoint&);
void setWidth (int);
void setHeight (int);
void setSize (int, int);
void setRect (const FRect&);
void setRect (int, int, int, int);
void setCoordinates (const FPoint&, const FPoint&);
void setCoordinates (int, int, int, int);
// Inquiry
bool isNull() const;
// Coordinate references
short& x1_ref();
short& y1_ref();
short& x2_ref();
short& y2_ref();
// Methods
void move (int, int);
void move (const FPoint&);
bool contains (int, int) const;
bool contains (const FPoint&) const;
bool contains (const FRect&) const;
bool overlap (const FRect&) const;
FRect intersect (const FRect&) const;
FRect combined (const FRect&) const;
private:
// Data Members
short X1;
short Y1;
short X2;
short Y2;
};
#pragma pack(pop)
// FRect inline functions
//----------------------------------------------------------------------
inline FRect::FRect()
: X1(0)
, Y1(0)
, X2(-1)
, Y2(-1)
{ }
//----------------------------------------------------------------------
inline FRect::FRect (const FRect& r) // copy constructor
: X1(r.X1)
, Y1(r.Y1)
, X2(r.X2)
, Y2(r.Y2)
{ }
//----------------------------------------------------------------------
inline FRect::FRect (int x, int y, int width, int height)
: X1(short(x))
, Y1(short(y))
, X2(short(x + width - 1))
, Y2(short(y + height - 1))
{ }
//----------------------------------------------------------------------
inline const char* FRect::getClassName()
{ return "FRect"; }
//----------------------------------------------------------------------
inline int FRect::getX1() const
{ return X1; }
//----------------------------------------------------------------------
inline int FRect::getY1() const
{ return Y1; }
//----------------------------------------------------------------------
inline int FRect::getX2() const
{ return X2; }
//----------------------------------------------------------------------
inline int FRect::getY2() const
{ return Y2; }
//----------------------------------------------------------------------
inline int FRect::getX() const
{ return X1; }
//----------------------------------------------------------------------
inline int FRect::getY() const
{ return Y1; }
//----------------------------------------------------------------------
inline FPoint FRect::getPos() const
{ return FPoint(X1, Y1); }
//----------------------------------------------------------------------
inline FPoint FRect::getUpperLeftPos() const
{ return FPoint(X1, Y1); }
//----------------------------------------------------------------------
inline FPoint FRect::getUpperRightPos() const
{ return FPoint(X2, Y1); }
//----------------------------------------------------------------------
inline FPoint FRect::getLowerLeftPos() const
{ return FPoint(X1, Y2); }
//----------------------------------------------------------------------
inline FPoint FRect::getLowerRightPos() const
{ return FPoint(X2, Y2); }
//----------------------------------------------------------------------
inline int FRect::getWidth() const
{ return short(X2 - X1 + 1); }
//----------------------------------------------------------------------
inline int FRect::getHeight() const
{ return short(Y2 - Y1 + 1); }
//----------------------------------------------------------------------
inline short& FRect::x1_ref()
{ return X1; }
//----------------------------------------------------------------------
inline short& FRect::y1_ref()
{ return Y1; }
//----------------------------------------------------------------------
inline short& FRect::x2_ref()
{ return X2; }
//----------------------------------------------------------------------
inline short& FRect::y2_ref()
{ return Y2; }
#endif // FRECT_H