lyx_mirror/src/Dimension.h

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// -*- C++ -*-
/**
* \file Dimension.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Andr<EFBFBD> P<EFBFBD>nitz
*
* Full author contact details are available in file CREDITS.
*/
#ifndef DIMENSION_H
#define DIMENSION_H
namespace lyx {
/// Simple wrapper around three ints
class Dimension {
public:
/// constructor
Dimension() : wid(0), asc(0), des(0) {}
/// initialize data
Dimension(int w, int a, int d) : wid(w), asc(a), des(d) {}
Dimension & operator=(Dimension const & dim) {
wid = dim.wid;
asc = dim.asc;
des = dim.des;
return *this;
}
/// glue horizontally
void operator+=(Dimension const & dim);
/// set to empty box
void clear() { wid = asc = des = 0; }
/// get height
int height() const { return asc + des; }
/// get ascent
int ascent() const { return asc; }
/// get descent
int descent() const { return des; }
/// get width
int width() const { return wid; }
/// add space for a frame
//void addFrame(int frame) const;
/// add space for bottom part of a frame
//void addFrameBottom(int frame) const;
public:
/// these are intentionally public as things like
///
/// dim.asc += 20;
///
/// are used all over the place and "hiding" those behind
///
/// dim.ascent(dim.ascent() + 20);
///
/// makes the code neither faster nor clearer
/// width
int wid;
/// ascent
int asc;
/// descent
int des;
};
inline
bool operator==(Dimension const & a, Dimension const & b)
{
return a.wid == b.wid && a.asc == b.asc && a.des == b.des ;
}
inline
bool operator!=(Dimension const & a, Dimension const & b)
{
return a.wid != b.wid || a.asc != b.asc || a.des != b.des ;
}
} // namespace lyx
#endif