src/Box.h

   1 // -*- C++ -*-
   2 /**
   3  * \file Box.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #ifndef BOX_H
  13 #define BOX_H
  14
  15 #include "support/strfwd.h"
  16
  17
  18 namespace lyx {
  19
  20 /**
  21  * A simple class representing rectangular regions.
  22  * It is expected that the box be constructed in
  23  * normalised form, that is to say : x1,y1 is top-left,
  24  * x2,y2 is bottom-right.
  25  *
  26  * Negative values are allowed.
  27  */
  28 class Box {
  29 public:
  30         int x1;
  31         int x2;
  32         int y1;
  33         int y2;
  34
  35         /// Zero-initialise the member variables.
  36         Box();
  37         /// Initialise the member variables.
  38         Box(int x1_, int x2_, int y1_, int y2_);
  39
  40         /**
  41          * Returns true if the given co-ordinates are within
  42          * the box. Check is exclusive (point on a border
  43          * returns false).
  44          */
  45         bool contains(int x, int y);
  46 };
  47
  48
  49 std::ostream & operator<<(std::ostream &, Box const &);
  50
  51
  52 } // namespace lyx
  53
  54 #endif // BOX_H