#ifndef FONT_METRICS_H
#define FONT_METRICS_H
-#include "support/docstring.h"
+#include "support/strfwd.h"
/**
* A class holding helper functions for determining
namespace lyx {
+class Dimension;
+
namespace frontend {
class FontMetrics
virtual int maxAscent() const = 0;
/// return the maximum descent of the font
virtual int maxDescent() const = 0;
+ /// return default dimension of the font.
+ /// \warning \c width is set to zero.
+ virtual Dimension const defaultDimension() const = 0;
/// return the width of the char in the font
virtual int width(char_type c) const = 0;
/// return the ascent of the char in the font
/// return the right bearing of the char in the font
virtual int rbearing(char_type c) const = 0;
/// return the width of the string in the font
- virtual int width(char_type const * s, size_t n) const = 0;
+ virtual int width(docstring const & s) const = 0;
/// FIXME ??
virtual int signedWidth(docstring const & s) const = 0;
+ /// return char dimension for the font.
+ virtual Dimension const dimension(char_type c) const = 0;
/**
* fill in width,ascent,descent with the values for the
* given string in the font.
int & descent) const = 0;
/// return the maximum descent of the font
- inline int maxHeight() const {
- return maxAscent() + maxDescent();
- }
+ inline int maxHeight() const { return maxAscent() + maxDescent(); }
/// return the descent of the char in the font
- inline int height(char_type c) const
- {
- return ascent(c) + descent(c);
- }
+ inline int height(char_type c) const { return ascent(c) + descent(c); }
/// return the inner width of the char in the font
inline int center(char_type c) const {
return (rbearing(c) - lbearing(c)) / 2;
}
-
- /// return the width of the string in the font
- inline int width(docstring const & s) const
- {
- return s.empty() ? 0 : width(s.data(), s.length());
- }
};
} // namespace frontend
-class LyXFont;
+class Font;
+class FontInfo;
-/// Implementation is in Application.C
-frontend::FontMetrics const & theFontMetrics(LyXFont const & f);
+/// Implementation is in Application.cpp
+frontend::FontMetrics const & theFontMetrics(Font const & f);
+frontend::FontMetrics const & theFontMetrics(FontInfo const & fi);
} // namespace lyx