Load the X11 RGB colour definitions into a map

2 files changed, 33 insertions, 1 deletions

diff --git a/assetFactory/assetFactory.cpp b/assetFactory/assetFactory.cpp
index 564ea28..016f29e 100644
--- a/assetFactory/assetFactory.cpp
+++ b/assetFactory/assetFactory.cpp
@@ -1,4 +1,5 @@
 #include "assetFactory.h"
+#include "collections.hpp"
 #include "cuboid.h"
 #include "cylinder.h"
 #include "modelFactoryMesh_fwd.h"
@@ -12,7 +13,8 @@ AssetFactory::AssetFactory() :
 			{"plane", std::make_shared<Plane>()},
 			{"cuboid", std::make_shared<Cuboid>()},
 			{"cylinder", std::make_shared<Cylinder>()},
-	}
+	},
+	colours {parseX11RGB("/usr/share/X11/rgb.txt")}
 {
 }
 
@@ -23,6 +25,30 @@ AssetFactory::loadXML(const std::filesystem::path & filename)
 	return Persistence::SAXParsePersistence {}.loadState<std::shared_ptr<AssetFactory>>(file);
 }
 
+AssetFactory::Colours
+AssetFactory::parseX11RGB(const char * path)
+{
+	filesystem::FileStar rgb {path, "r"};
+	Colours out;
+	glm::u8vec3 colour;
+	char inname[BUFSIZ];
+	while (fscanf(rgb, "%hhu %hhu %hhu %[^\n\r]s", &colour.r, &colour.g, &colour.b, inname) == 4) {
+		std::string name {inname};
+		normalizeColourName(name);
+		out.emplace(std::move(name), colour);
+	}
+	return out;
+}
+
+void
+AssetFactory::normalizeColourName(std::string & name)
+{
+	std::erase_if(name, ::isblank);
+	name *= [l = std::locale {}](auto & ch) {
+		ch = std::tolower(ch, l);
+	};
+}
+
 bool
 AssetFactory::persist(Persistence::PersistenceStore & store)
 {
diff --git a/assetFactory/assetFactory.h b/assetFactory/assetFactory.h
index 9d79827..a68b460 100644
--- a/assetFactory/assetFactory.h
+++ b/assetFactory/assetFactory.h
@@ -22,12 +22,18 @@ class AssetFactory : public Persistence::Persistable {
 public:
 	using Shapes = std::map<std::string, Shape::Ptr, std::less<>>;
 	using Assets = std::map<std::string, Asset::Ptr, std::less<>>;
+	using Colour = glm::u8vec3;
+	using Colours = std::map<std::string, Colour, std::less<>>;
 
 	AssetFactory();
 	[[nodiscard]] static std::shared_ptr<AssetFactory> loadXML(const std::filesystem::path &);
 
 	Shapes shapes;
 	Assets assets;
+	Colours colours;
+
+	static Colours parseX11RGB(const char * rgbtxtpath);
+	static void normalizeColourName(std::string &);
 
 private:
 	friend Persistence::SelectionPtrBase<std::shared_ptr<AssetFactory>, true>;