Add support for directly setting image assets and processing Image userdata

1 files changed, 38 insertions, 0 deletions

diff --git a/source/base/scripting/StarImageLuaBindings.cpp b/source/base/scripting/StarImageLuaBindings.cpp
new file mode 100644
index 0000000..0f5d1e4
--- /dev/null
+++ b/source/base/scripting/StarImageLuaBindings.cpp
@@ -0,0 +1,38 @@
+#include "StarImageLuaBindings.hpp"
+#include "StarLuaConverters.hpp"
+#include "StarImage.hpp"
+#include "StarRootBase.hpp"
+
+namespace Star {
+
+LuaMethods<Image> LuaUserDataMethods<Image>::make() {
+  LuaMethods<Image> methods;
+
+  methods.registerMethodWithSignature<Vec2U, Image&>("size", mem_fn(&Image::size));
+  methods.registerMethodWithSignature<void, Image&, Vec2U, Image&>("drawInto", mem_fn(&Image::drawInto));
+  methods.registerMethodWithSignature<void, Image&, Vec2U, Image&>("copyInto", mem_fn(&Image::copyInto));
+  methods.registerMethod("set", [](Image& image, unsigned x, unsigned y, Color const& color) {
+    image.set(x, y, color.toRgba()); 
+  });
+
+  methods.registerMethod("get", [](Image& image, unsigned x, unsigned y) {
+    return Color::rgba(image.get(x, y));
+  });
+
+  methods.registerMethod("subImage", [](Image& image, Vec2U const& min, Vec2U const& size) {
+    return image.subImage(min, size);
+  });
+
+  methods.registerMethod("process", [](Image& image, String const& directives) {
+    return processImageOperations(parseImageOperations(directives), image, [](String const& path) -> Image const* {
+      if (auto root = RootBase::singletonPtr())
+        return root->assets()->image(path).get();
+      else
+        return nullptr;
+    });
+  });
+
+  return methods;
+}
+
+}