Common config gui

src/main/kotlin/moe/nea/firmament/gui/config/BooleanHandler.kt

@@ -0,0 +1,33 @@
+package moe.nea.firmament.gui.config
+
+import io.github.cottonmc.cotton.gui.widget.WLabel
+import io.github.cottonmc.cotton.gui.widget.WToggleButton
+import io.github.cottonmc.cotton.gui.widget.data.VerticalAlignment
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.JsonPrimitive
+import kotlinx.serialization.json.boolean
+import kotlinx.serialization.json.jsonPrimitive
+import net.minecraft.text.Text
+
+class BooleanHandler(val config: ManagedConfig) : ManagedConfig.OptionHandler<Boolean> {
+    override fun toJson(element: Boolean): JsonElement? {
+        return JsonPrimitive(element)
+    }
+
+    override fun fromJson(element: JsonElement): Boolean {
+        return element.jsonPrimitive.boolean
+    }
+
+    override fun emitGuiElements(opt: ManagedConfig.Option<Boolean>, guiAppender: GuiAppender) {
+        guiAppender.appendLabeledRow(
+            opt.labelText,
+            WToggleButton(opt.labelText).apply {
+                guiAppender.onReload { toggle = opt.value }
+                setOnToggle {
+                    opt.value = it
+                    config.save()
+                }
+            }
+        )
+    }
+}