mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-16 07:55:41 +00:00
015333d987
This has the advantage of simplifying our code and to produce the correct output: the small capitals should have the exact same width as the lower case letters. The slanted fonts are also translated to oblique on Qt side, but this does not seems to have an effect in my testing. It may be that proper oblique fonts need to be installed.
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
// -*- C++ -*-
|
|
/**
|
|
* \file GuiFontMetrics.h
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Abdelrazak Younes
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#ifndef GUI_FONT_METRICS_H
|
|
#define GUI_FONT_METRICS_H
|
|
|
|
#include "frontends/FontMetrics.h"
|
|
|
|
#include "support/docstring.h"
|
|
|
|
#include <QFontMetrics>
|
|
#include <QHash>
|
|
|
|
namespace lyx {
|
|
namespace frontend {
|
|
|
|
class GuiFontMetrics : public FontMetrics
|
|
{
|
|
public:
|
|
GuiFontMetrics(QFont const & font);
|
|
|
|
virtual ~GuiFontMetrics() {}
|
|
|
|
virtual int maxAscent() const;
|
|
virtual int maxDescent() const;
|
|
virtual Dimension const defaultDimension() const;
|
|
virtual int width(char_type c) const;
|
|
virtual int ascent(char_type c) const;
|
|
virtual int descent(char_type c) const;
|
|
virtual int lbearing(char_type c) const;
|
|
virtual int rbearing(char_type c) const;
|
|
virtual int width(docstring const & s) const;
|
|
virtual int signedWidth(docstring const & s) const;
|
|
virtual Dimension const dimension(char_type c) const;
|
|
|
|
virtual void rectText(docstring const & str,
|
|
int & width,
|
|
int & ascent,
|
|
int & descent) const;
|
|
virtual void buttonText(docstring const & str,
|
|
int & width,
|
|
int & ascent,
|
|
int & descent) const;
|
|
///
|
|
int width(QString const & str) const;
|
|
|
|
private:
|
|
/// Metrics on the font
|
|
QFontMetrics metrics_;
|
|
|
|
/// Cache of char widths
|
|
mutable QHash<char_type, int> width_cache_;
|
|
|
|
struct AscendDescend {
|
|
int ascent;
|
|
int descent;
|
|
};
|
|
/// Cache of char ascends and descends
|
|
mutable QHash<char_type, AscendDescend> metrics_cache_;
|
|
/// fill in \c metrics_cache_ at specified value.
|
|
AscendDescend const fillMetricsCache(char_type) const;
|
|
|
|
/// Cache of char right bearings
|
|
mutable QHash<char_type, int> rbearing_cache_;
|
|
};
|
|
|
|
} // namespace frontend
|
|
} // namespace lyx
|
|
|
|
#endif // GUI_FONT_METRICS_H
|