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annotate nuklear_ui/font_mac.m @ 1537:b4914d92308b nuklear_ui

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Added OSX implementation of default_font
author Michael Pavone <pavone@retrodev.com>
date Sun, 25 Mar 2018 10:30:40 -0700
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children 098c11aaf8f0
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1537
b4914d92308b Added OSX implementation of default_font
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1 #import <AppKit/AppKit.h>
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2 #include <stddef.h>
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3 #include "../paths.h"
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4 #include "../util.h"
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5 #include "sfnt.h"
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6
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7 sfnt_table *find_font_in_dir(char *path, char *prefix, const char *ps_name)
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8 {
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9 size_t num_entries;
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10 dir_entry *entries = get_dir_list(path, &num_entries);
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11 size_t prefix_len = strlen(prefix);
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12 sfnt_table *selected = NULL;
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13 for (size_t i = 0; i < num_entries && !selected; i++)
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14 {
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15 char *ext = path_extension(entries[i].name);
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16 if (!ext || (strcasecmp(ext, "ttf") && strcasecmp(ext, "ttc") && strcasecmp(ext, "dfont"))) {
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17 //not a truetype font, ignore
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18 free(ext);
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19 continue;
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20 }
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21 free(ext);
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22 if (!strncasecmp(entries[i].name, prefix, prefix_len)) {
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23 char *full_path = path_append(path, entries[i].name);
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24 FILE *f = fopen(full_path, "rb");
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25 if (f)
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26 {
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27 long font_size = file_size(f);
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28 uint8_t *blob = malloc(font_size);
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29 if (font_size == fread(blob, 1, font_size, f))
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30 {
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31 sfnt_container *sfnt = load_sfnt(blob, font_size);
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32 if (sfnt) {
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33 for (uint8_t j = 0; j < sfnt->num_fonts && !selected; j++)
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34 {
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35 char *cur_ps = sfnt_name(sfnt->tables + j, SFNT_POSTSCRIPT);
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36 if (!strcmp(cur_ps, ps_name)) {
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37 selected = sfnt->tables + j;
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38 }
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39 free(cur_ps);
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40 }
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41 } else {
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42 free(blob);
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43 }
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44 } else {
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45 free(blob);
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46 }
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47 fclose(f);
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48 }
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49 free(full_path);
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50 }
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51 }
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52 return selected;
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53 }
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54
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55 uint8_t *default_font(uint32_t *size_out)
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56 {
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57 NSFont *sys = [NSFont systemFontOfSize:0];
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58 NSString *name = [sys fontName];
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59 const char *ps_name = [name UTF8String];
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60 const unsigned char *prefix_start = (const unsigned char *)ps_name;
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61 while(*prefix_start && (
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62 *prefix_start < '0' ||
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63 (*prefix_start > 'z' && *prefix_start <= 0x80) ||
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64 (*prefix_start > 'Z' && *prefix_start < 'a') ||
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65 (*prefix_start > '9' && *prefix_start < 'A')
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66 ))
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67 {
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68 prefix_start++;
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69 }
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70 if (!*prefix_start) {
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71 //Didn't find a suitable starting character, just start from the beginning
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72 prefix_start = (const unsigned char *)ps_name;
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73 }
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74 const unsigned char *prefix_end = (const unsigned char *)prefix_start + 1;
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75 while (*prefix_end && *prefix_end >= 'a')
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76 {
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77 prefix_end++;
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78 }
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79 char *prefix = malloc(prefix_end - prefix_start + 1);
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80 memcpy(prefix, prefix_start, prefix_end - prefix_start);
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81 prefix[prefix_end-prefix_start] = 0;
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82 //check /Library/Fonts first
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83 sfnt_table *selected = find_font_in_dir("/Library/Fonts", (char *)prefix, ps_name);
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84 if (!selected) {
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85 selected = find_font_in_dir("/System/Library/Fonts", (char *)prefix, ps_name);
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86 }
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87 if (!selected) {
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88 fatal_error("Failed to find system font %s using prefix %s\n", ps_name, prefix);
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89 }
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90 free(prefix);
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91 return sfnt_flatten(selected, size_out);
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92 }
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93