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133 lines
3.0 KiB
C++
133 lines
3.0 KiB
C++
// -*- C++ -*-
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/**
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* \file RowPainter.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 various
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* \author John Levon
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* \author André Pönitz
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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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#ifndef ROWPAINTER_H
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#define ROWPAINTER_H
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#include "Bidi.h"
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#include "Changes.h"
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#include "support/types.h"
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namespace lyx {
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class BufferView;
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class Font;
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class FontInfo;
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class Inset;
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class Language;
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class PainterInfo;
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class Paragraph;
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class ParagraphList;
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class ParagraphMetrics;
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class Row;
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class Text;
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class TextMetrics;
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namespace frontend { class Painter; }
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/**
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* FIXME: Re-implement row painting using row elements.
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*
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* This is not difficult in principle, but the code is intricate and
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* needs some careful analysis. The first thing that needs to be done
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* is to break row elements with the same criteria. Currently breakRow
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* does not consider on-the-fly spell-checking, but it is not clear to
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* me that it is required. Moreover, this thing would only work if we
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* are sure that the Row object is up-to-date when drawing happens.
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* This depends on the update machinery.
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*
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* This would allow to get rid of the Bidi class.
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*/
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/**
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* A class used for painting an individual row of text.
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* FIXME: get rid of that class.
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*/
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class RowPainter {
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public:
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/// initialise and run painter
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RowPainter(PainterInfo & pi, Text const & text,
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pit_type pit, Row const & row, int x, int y);
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/// paint various parts
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/// FIXME: transfer to TextMetrics
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void paintAppendix();
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void paintDepthBar();
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void paintChangeBar();
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void paintFirst();
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void paintLast();
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void paintText();
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void paintOnlyInsets();
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void paintSelection();
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private:
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void paintSeparator(double orig_x, double width, FontInfo const & font);
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void paintForeignMark(double orig_x, Language const * lang, int desc = 0);
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void paintMisspelledMark(double orig_x, bool changed);
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void paintChars(pos_type & vpos, Font const & font);
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int paintAppendixStart(int y);
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void paintFromPos(pos_type & vpos, bool changed);
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void paintInset(Inset const * inset, pos_type const pos);
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void paintInlineCompletion(Font const & font);
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/// return left margin
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int leftMargin() const;
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/// return the label font for this row
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FontInfo labelFont() const;
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///
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void paintLabel();
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///
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void paintTopLevelLabel();
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/// contains painting related information.
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PainterInfo & pi_;
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/// Text for the row
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Text const & text_;
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TextMetrics & text_metrics_;
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ParagraphList const & pars_;
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/// The row to paint
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Row const & row_;
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/// Row's paragraph
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pit_type const pit_;
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Paragraph const & par_;
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ParagraphMetrics const & pm_;
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/// bidi cache
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Bidi bidi_;
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/// row changed? (change tracking)
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Change const change_;
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// Looks ugly - is
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double const xo_;
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int const yo_; // current baseline
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double x_;
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int width_;
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float solid_line_thickness_;
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int solid_line_offset_;
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float dotted_line_thickness_;
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int dotted_line_offset_;
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};
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} // namespace lyx
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#endif // ROWPAINTER_H
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