mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-15 07:16:48 +00:00
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
// -*- C++ -*-
|
|
/**
|
|
* \file ParagraphMetrics.h
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Asger Alstrup
|
|
* \author Lars Gullik Bjønnes
|
|
* \author John Levon
|
|
* \author André Pönitz
|
|
* \author Jürgen Vigna
|
|
* \author Abdelrazak Younes
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#ifndef PARAGRAPH_METRICS_H
|
|
#define PARAGRAPH_METRICS_H
|
|
|
|
#include "Dimension.h"
|
|
#include "Row.h"
|
|
|
|
#include <vector>
|
|
|
|
namespace lyx {
|
|
|
|
/**
|
|
* Each paragraph is broken up into a number of rows on the screen.
|
|
* This is a list of such on-screen rows, ordered from the top row
|
|
* downwards.
|
|
*/
|
|
typedef std::vector<Row> RowList;
|
|
|
|
class BufferView;
|
|
class Paragraph;
|
|
|
|
/// Helper class for paragraph metrics.
|
|
class ParagraphMetrics {
|
|
public:
|
|
/// Default constructor (only here for STL containers).
|
|
ParagraphMetrics() : position_(0), par_(0) {}
|
|
/// The only useful constructor.
|
|
explicit ParagraphMetrics(Paragraph const & par);
|
|
|
|
/// Copy operator.
|
|
ParagraphMetrics & operator=(ParagraphMetrics const &);
|
|
|
|
void reset(Paragraph const & par);
|
|
|
|
///
|
|
Row const & getRow(pos_type pos, bool boundary) const;
|
|
///
|
|
size_t pos2row(pos_type pos) const;
|
|
|
|
/// TextMetrics::redoParagraph updates this
|
|
Dimension const & dim() const { return dim_; }
|
|
Dimension & dim() { return dim_; }
|
|
/// total height of paragraph
|
|
int height() const { return dim_.height(); }
|
|
/// total width of paragraph, may differ from workwidth
|
|
int width() const { return dim_.width(); }
|
|
/// ascend of paragraph above baseline
|
|
int ascent() const { return dim_.ascent(); }
|
|
/// descend of paragraph below baseline
|
|
int descent() const { return dim_.descent(); }
|
|
/// Text updates the rows using this access point
|
|
RowList & rows() { return rows_; }
|
|
/// The painter and others use this
|
|
RowList const & rows() const { return rows_; }
|
|
///
|
|
int rightMargin(BufferView const & bv) const;
|
|
|
|
/// dump some information to lyxerr
|
|
void dump() const;
|
|
|
|
///
|
|
bool hfillExpansion(Row const & row, pos_type pos) const;
|
|
|
|
///
|
|
int position() const { return position_; }
|
|
void setPosition(int position);
|
|
|
|
private:
|
|
///
|
|
int position_;
|
|
///
|
|
mutable RowList rows_;
|
|
/// cached dimensions of paragraph
|
|
Dimension dim_;
|
|
///
|
|
Paragraph const * par_;
|
|
};
|
|
|
|
} // namespace lyx
|
|
|
|
#endif // PARAGRAPH_METRICS_H
|