lyx_mirror/src/RowPainter.h
Jean-Marc Lasgouttes b68f391232 Re-implement text justification
* GuiFontMetrics::pos2x, x2pos: add support for inter-word spacing.
* GuiPainter::text: idem

* Row::Element::countSeparators:
  Row::countSeparators: new methods that count spaces in strings.
  Row::setSeparatorExtraWidth: new method (code lifted from TextMetrics.cpp).

* TextMetrics::computeRowMetrics: rely on the above methods.

* RowPainter::paintMispelledMarked: pass only a Row::Element object reference
  RowPainter::paintStringAndSel: idem; do not rely on values returned by
      Painter::text (trailing spaces do not honor wordspacing value).
2015-07-20 23:43:05 +02:00

112 lines
2.5 KiB
C++

// -*- C++ -*-
/**
* \file RowPainter.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author various
* \author John Levon
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#ifndef ROWPAINTER_H
#define ROWPAINTER_H
#include "Changes.h"
#include "Row.h"
#include "support/types.h"
namespace lyx {
class BufferView;
class Font;
class FontInfo;
class Inset;
class Language;
class PainterInfo;
class Paragraph;
class ParagraphList;
class ParagraphMetrics;
class Text;
class TextMetrics;
namespace frontend { class Painter; }
/**
* A class used for painting an individual row of text.
* FIXME: get rid of that class.
*/
class RowPainter {
public:
/// initialise and run painter
RowPainter(PainterInfo & pi, Text const & text,
pit_type pit, Row const & row, int x, int y);
/// paint various parts
/// FIXME: transfer to TextMetrics
void paintAppendix() const;
void paintDepthBar() const;
void paintChangeBar() const;
void paintTooLargeMarks(bool const left, bool const right) const;
void paintFirst() const;
void paintLast();
void paintText();
void paintOnlyInsets();
void paintSelection() const;
private:
void paintSeparator(double width, Font const & font);
void paintForeignMark(double orig_x, Language const * lang, int desc = 0) const;
void paintStringAndSel(Row::Element const & e);
void paintMisspelledMark(double orig_x, Row::Element const & e) const;
void paintChange(double orig_x , Font const & font, Change const & change) const;
int paintAppendixStart(int y) const;
void paintInset(Inset const * inset, Font const & font,
Change const & change, pos_type const pos);
/// return the label font for this row
FontInfo labelFont() const;
///
void paintLabel() const;
///
void paintTopLevelLabel() const;
/// contains painting related information.
PainterInfo & pi_;
/// Text for the row
Text const & text_;
TextMetrics const & text_metrics_;
ParagraphList const & pars_;
/// The row to paint
Row const & row_;
/// Row's paragraph
pit_type const pit_;
Paragraph const & par_;
ParagraphMetrics const & pm_;
/// row changed? (change tracking)
Change const change_;
// Looks ugly - is
double const xo_;
int const yo_; // current baseline
double x_;
int width_;
int solid_line_thickness_;
int solid_line_offset_;
int dotted_line_thickness_;
int dotted_line_offset_;
};
} // namespace lyx
#endif // ROWPAINTER_H