Have to force the terminal detected by FTXUI to use full color no matter what it detects in the actual terminal.

ansi_parser.rl

@@ -82,12 +82,16 @@ using namespace fmt;
 
 %% write data;
 
+#include <ftxui/screen/terminal.hpp>
 
 ANSIParser::ANSIParser(sf::Color default_fg, sf::Color default_bg) :
   $default_fg(default_fg),
   $default_bg(default_bg)
 {
-
+  // the parser only handles full color so force it
+  if(ftxui::Terminal::ColorSupport() != ftxui::Terminal::Color::TrueColor) {
+    ftxui::Terminal::SetColorSupport(ftxui::Terminal::Color::TrueColor);
+  }
 }
 
 bool ANSIParser::parse(const std::string &screen, WriteCB write) {

config.cpp

@@ -10,6 +10,7 @@ json &Config::operator[](const std::string &key) {
 }
 
 std::wstring Config::wstring(const std::string main_key, const std::string sub_key) {
+  std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> $converter;
   const std::string& str_val = $config[main_key][sub_key];
   return $converter.from_bytes(str_val);
 }

config.hpp

@@ -6,12 +6,13 @@
 using namespace nlohmann;
 
 struct Config {
-  std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> $converter;
   json $config;
   std::string $src_path = "./config.json";
 
   Config(const std::string src_path);
-  Config(Config &other) = delete;
+
+  Config(json config, std::string src_path)
+    : $config(config), $src_path(src_path) {}
 
   json &operator[](const std::string &key);
 

gui.cpp

@@ -57,6 +57,7 @@ void GUI::resize_map(int new_size) {
 }
 
 void GUI::create_renderer() {
+  Terminal::SetColorSupport(Terminal::Color::TrueColor);
   auto player = $world.get_the<Player>();
 
   $map_view = Renderer([&] {

main.cpp

@@ -52,7 +52,6 @@ void configure_world(DinkyECS::World &world, Map &game_map) {
 
 
 int main() {
-  Terminal::SetColorSupport(Terminal::Color::TrueColor);
   DinkyECS::World world;
 
   Map game_map(GAME_MAP_X, GAME_MAP_Y);

render.cpp

@@ -2,6 +2,7 @@
 #include "ansi_parser.hpp"
 #include <cmath>
 #include <fmt/core.h>
+#include <array>
 
 std::array<sf::Color, 10> VALUES{
   sf::Color{1, 4, 2},  // black
@@ -35,6 +36,7 @@ SFMLRender::SFMLRender(Canvas &canvas, Screen &map_screen, Screen &screen) :
   $default_bg(color(Value::BLACK)),
   $ansi($default_fg, $default_bg)
 {
+  // force true color, but maybe I want to support different color sets
   $font.loadFromFile("./assets/text.otf");
   $ui_text.setFont($font);
   $ui_text.setPosition(0,0);

tests/ansi_parser.cpp

@@ -3,7 +3,7 @@
 #include <string>
 #include "ansi_parser.hpp"
 #include <codecvt>
-
+#include <iostream>
 
 #include "ftxui/dom/elements.hpp"  // for text, bgcolor, color, vbox, hbox, separator, operator|, Elements, Element, Fit, border
 #include "ftxui/dom/node.hpp"      // for Render
@@ -53,10 +53,13 @@ std::string generate_colors() {
 
 TEST_CASE("test out ragel parser", "[gui]") {
   std::string colors = generate_colors();
+  std::cout << colors;
   sf::Color default_fg(0,0,0);
   sf::Color default_bg(100,100,100);
   ANSIParser parser(default_fg, default_bg);
 
+  REQUIRE(ftxui::Terminal::ColorSupport() == Terminal::Color::TrueColor);
+
   bool good = parser.parse(colors, [&](sf::Color bgcolor, sf::Color color, wchar_t ch) {
       bool correct_char = ch == '#' || ch == ' ' || ch == '\n' || ch == '\r';
       REQUIRE(correct_char);