lyx_mirror/src/Row.h

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// -*- C++ -*-
/**
* \file Row.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Matthias Ettrich
* \author Lars Gullik Bj<EFBFBD>nnes
*
* Full author contact details are available in file CREDITS.
*
* Metrics for an on-screen text row.
*/
#ifndef ROW_H
#define ROW_H
#include "support/types.h"
#include "Dimension.h"
namespace lyx {
/**
* An on-screen row of text. A paragraph is broken into a
* RowList for display. Each Row contains position pointers
* into the first and last character positions of that row.
*/
class Row {
public:
///
Row();
///
Row(pos_type pos);
///
bool changed() const { return changed_; }
///
void setChanged(bool c) { changed_ = c; }
///
void setCrc(size_type crc);
///
void setSelection(pos_type sel_beg, pos_type sel_end);
///
void pos(pos_type p);
///
pos_type pos() const { return pos_; }
///
void endpos(pos_type p);
///
pos_type endpos() const { return end_; }
///
void setDimension(Dimension const & dim);
///
Dimension const & dimension() const { return dim_; }
///
int height() const { return dim_.height(); }
///
int width() const { return dim_.wid; }
///
int ascent() const { return dim_.asc; }
///
int descent() const { return dim_.des; }
/// current debugging only
void dump(char const * = "") const;
/// width of a separator (i.e. space)
double separator;
/// width of hfills in the body
double hfill;
/// width of hfills in the label
double label_hfill;
/// the x position of the row
double x;
///
pos_type sel_beg;
///
pos_type sel_end;
private:
/// has the Row appearance changed since last drawing?
bool changed_;
/// CRC of row contents.
size_type crc_;
/// first pos covered by this row
pos_type pos_;
/// one behind last pos covered by this row
pos_type end_;
/// Row dimension.
Dimension dim_;
};
} // namespace lyx
#endif