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//
// "$Id$"
//
// Font utilities for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2018 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
// Add a font to the internal table.
// Also see fl_set_fonts.cxx which adds all possible fonts.
#include <FL/Fl.H>
#include <FL/platform.H>
#include <FL/fl_draw.H>
#include "Fl_Screen_Driver.H"
#include "flstring.h"
#include <stdlib.h>
struct Fl_Fontdesc;
extern FL_EXPORT Fl_Fontdesc *fl_fonts; // the table
static int table_size;
/**
Changes a face. The string pointer is simply stored,
the string is not copied, so the string must be in static memory.
*/
void Fl::set_font(Fl_Font fnum, const char* name) {
Fl_Graphics_Driver &d = Fl_Graphics_Driver::default_driver();
unsigned width = d.font_desc_size();
if (!fl_fonts) fl_fonts = d.calc_fl_fonts();
while (fnum >= table_size) {
int i = table_size;
if (!i) { // don't realloc the built-in table
table_size = 2*FL_FREE_FONT;
i = FL_FREE_FONT;
Fl_Fontdesc* t = (Fl_Fontdesc*)malloc(table_size*width);
memcpy(t, fl_fonts, FL_FREE_FONT*width);
fl_fonts = t;
} else {
table_size = 2*table_size;
fl_fonts=(Fl_Fontdesc*)realloc(fl_fonts, table_size*width);
}
for (; i < table_size; i++) {
memset((char*)fl_fonts + i * width, 0, width);
}
}
d.font_name(fnum, name);
d.font(-1, 0);
}
/** Copies one face to another. */
void Fl::set_font(Fl_Font fnum, Fl_Font from) {
Fl::set_font(fnum, get_font(from));
}
/**
Gets the string for this face. This string is different for each
face. Under X this value is passed to XListFonts to get all the sizes
of this face.
*/
const char* Fl::get_font(Fl_Font fnum) {
return Fl_Graphics_Driver::default_driver().font_name(fnum);
}
//
// End of "$Id$".
//
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