feat: switch text to UTF-8; add Unicode key events, dead keys & Czech layout; fix numpad navigation; add NumLock support

programs/src/printd/test_page_jpeg.cpp

@@ -143,14 +143,8 @@ static gui::TrueTypeFont* load_page_font(const char* path) {
 
 static void free_page_font(gui::TrueTypeFont* font) {
     if (!font) return;
-    for (int i = 0; i < font->cache_count; i++) {
-        for (int g = 0; g < 256; g++) {
-            if (font->caches[i].glyphs[g].bitmap) {
-                montauk::mfree(font->caches[i].glyphs[g].bitmap);
-                font->caches[i].glyphs[g].bitmap = nullptr;
-            }
-        }
-    }
+    for (int i = 0; i < font->cache_count; i++)
+        gui::TrueTypeFont::free_cache(&font->caches[i]);
     if (font->data) {
         montauk::free(font->data);
         font->data = nullptr;
@@ -209,8 +203,8 @@ static void draw_text(uint8_t* rgb, PageFonts* fonts, bool bold,
 
     int cx = x;
     int baseline = y + gc->ascent;
-    for (int i = 0; text[i] != '\0'; i++) {
-        gui::CachedGlyph* glyph = font->get_glyph(gc, (unsigned char)text[i]);
+    for (const char* p = text; *p;) {
+        gui::CachedGlyph* glyph = font->get_glyph(gc, (int)montauk::utf8::next(&p));
         if (!glyph) continue;
 
         if (glyph->bitmap) {