26cb08badb
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12975 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
//
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// "$Id$"
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//
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// Font utilities for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2018 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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// Add a font to the internal table.
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// Also see fl_set_fonts.cxx which adds all possible fonts.
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#include <FL/Fl.H>
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#include <FL/platform.H>
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#include <FL/fl_draw.H>
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#include "Fl_Screen_Driver.H"
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#include "flstring.h"
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#include <stdlib.h>
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struct Fl_Fontdesc;
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extern FL_EXPORT Fl_Fontdesc *fl_fonts; // the table
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static int table_size;
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/**
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Changes a face. The string pointer is simply stored,
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the string is not copied, so the string must be in static memory.
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*/
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void Fl::set_font(Fl_Font fnum, const char* name) {
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Fl_Graphics_Driver &d = Fl_Graphics_Driver::default_driver();
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unsigned width = d.font_desc_size();
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if (!fl_fonts) fl_fonts = d.calc_fl_fonts();
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while (fnum >= table_size) {
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int i = table_size;
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if (!i) { // don't realloc the built-in table
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table_size = 2*FL_FREE_FONT;
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i = FL_FREE_FONT;
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Fl_Fontdesc* t = (Fl_Fontdesc*)malloc(table_size*width);
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memcpy(t, fl_fonts, FL_FREE_FONT*width);
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fl_fonts = t;
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} else {
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table_size = 2*table_size;
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fl_fonts=(Fl_Fontdesc*)realloc(fl_fonts, table_size*width);
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}
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for (; i < table_size; i++) {
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memset((char*)fl_fonts + i * width, 0, width);
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}
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}
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d.font_name(fnum, name);
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d.font(-1, 0);
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}
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/** Copies one face to another. */
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void Fl::set_font(Fl_Font fnum, Fl_Font from) {
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Fl::set_font(fnum, get_font(from));
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}
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/**
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Gets the string for this face. This string is different for each
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face. Under X this value is passed to XListFonts to get all the sizes
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of this face.
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*/
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const char* Fl::get_font(Fl_Font fnum) {
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return Fl_Graphics_Driver::default_driver().font_name(fnum);
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}
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//
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// End of "$Id$".
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//
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