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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27425 a592a061-630c-0410-9148-cb99ea01b6c8
120 lines
2.5 KiB
C++
120 lines
2.5 KiB
C++
// -*- C++ -*-
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/**
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* \file Row.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Matthias Ettrich
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS.
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*
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* Metrics for an on-screen text row.
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*/
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#ifndef ROW_H
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#define ROW_H
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#include "support/types.h"
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#include "Dimension.h"
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namespace lyx {
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class DocIterator;
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/**
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* An on-screen row of text. A paragraph is broken into a
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* RowList for display. Each Row contains position pointers
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* into the first and last character positions of that row.
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*/
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class Row {
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public:
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///
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Row();
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///
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bool changed() const { return changed_; }
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///
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void setChanged(bool c) { changed_ = c; }
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///
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void setCrc(size_type crc) const;
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/// Set the selection begin and end.
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/**
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* This is const because we update the selection status only at draw()
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* time.
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*/
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void setSelection(pos_type sel_beg, pos_type sel_end) const;
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///
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bool selection() const;
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/// Set the selection begin and end and whether the left and/or right
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/// margins are selected.
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void setSelectionAndMargins(DocIterator const & beg,
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DocIterator const & end) const;
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///
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void pos(pos_type p);
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///
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pos_type pos() const { return pos_; }
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///
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void endpos(pos_type p);
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///
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pos_type endpos() const { return end_; }
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///
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void setDimension(Dimension const & dim);
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///
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Dimension const & dimension() const { return dim_; }
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///
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int height() const { return dim_.height(); }
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///
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int width() const { return dim_.wid; }
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///
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int ascent() const { return dim_.asc; }
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///
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int descent() const { return dim_.des; }
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/// current debugging only
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void dump(char const * = "") const;
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/// width of a separator (i.e. space)
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double separator;
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/// width of hfills in the label
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double label_hfill;
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/// the x position of the row
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double x;
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///
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mutable pos_type sel_beg;
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///
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mutable pos_type sel_end;
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///
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mutable bool begin_margin_sel;
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///
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mutable bool end_margin_sel;
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private:
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/// Decides whether the margin is selected.
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/**
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* \param margin_begin
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* \param beg
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* \param end
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*/
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bool isMarginSelected(bool left_margin, DocIterator const & beg,
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DocIterator const & end) const;
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/// has the Row appearance changed since last drawing?
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mutable bool changed_;
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/// CRC of row contents.
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mutable size_type crc_;
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/// first pos covered by this row
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pos_type pos_;
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/// one behind last pos covered by this row
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pos_type end_;
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/// Row dimension.
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Dimension dim_;
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};
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} // namespace lyx
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#endif
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