#ifndef FONT_METRICS_H
#define FONT_METRICS_H
-#include "support/std_string.h"
+#include <string>
+
class LyXFont;
int maxAscent(LyXFont const & f);
/// return the maximum descent of the font
int maxDescent(LyXFont const & f);
+ /// return the maximum descent of the font
+ inline int maxHeight(LyXFont const & f) {
+ return maxAscent(f) + maxDescent(f);
+ }
/// return the ascent of the char in the font
int ascent(char c, LyXFont const & f);
/// return the descent of the char in the font
int descent(char c, LyXFont const & f);
+ /// return the descent of the char in the font
+ inline int height(char c, LyXFont const & f) {
+ return ascent(c, f) + descent(c, f);
+ }
/// return the left bearing of the char in the font
int lbearing(char c, LyXFont const & f);
/// return the right bearing of the char in the font
int rbearing(char c, LyXFont const & f);
+ /// return the inner width of the char in the font
+ inline int center(char c, LyXFont const & f) {
+ return (rbearing(c, f) - lbearing(c, f)) / 2;
+ }
/// return the width of the string in the font
int width(char const * s, size_t n, LyXFont const & f);
/// return the width of the char in the font
return width(&c, 1, f);
}
/// return the width of the string in the font
- inline int width(string const & s, LyXFont const & f) {
- if (s.empty()) return 0;
- return width(s.data(), s.length(), f);
+ inline int width(std::string const & s, LyXFont const & f) {
+ return s.empty() ? 0 : width(s.data(), s.length(), f);
}
/// FIXME ??
- int signedWidth(string const & s, LyXFont const & f);
+ int signedWidth(std::string const & s, LyXFont const & f);
/**
* fill in width,ascent,descent with the values for the
* given string in the font.
*/
- void rectText(string const & str, LyXFont const & font,
+ void rectText(std::string const & str, LyXFont const & font,
int & width,
int & ascent,
int & descent);
* fill in width,ascent,descent with the values for the
* given string in the font for a button.
*/
- void buttonText(string const & str, LyXFont const & font,
+ void buttonText(std::string const & str, LyXFont const & font,
int & width,
int & ascent,
int & descent);