Make image preview scalable

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

@@ -22,10 +22,14 @@ import io.github.cottonmc.cotton.gui.widget.WGridPanel
 import io.github.cottonmc.cotton.gui.widget.WLabel
 import io.github.cottonmc.cotton.gui.widget.WWidget
 import io.github.cottonmc.cotton.gui.widget.data.VerticalAlignment
+import net.minecraft.client.gui.screen.Screen
 import net.minecraft.text.Text
 
-class GuiAppender(val width: Int) {
+class GuiAppender(val width: Int, val screenAccessor: () -> Screen) {
     private var row = 0
+
+
+
     internal val panel = WGridPanel().also { it.setGaps(4, 4) }
     internal val reloadables = mutableListOf<(() -> Unit)>()
     fun set(x: Int, y: Int, w: Int, h: Int, widget: WWidget) {

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

@@ -0,0 +1,34 @@
+package moe.nea.firmament.gui.config
+
+import io.github.cottonmc.cotton.gui.widget.WButton
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.decodeFromJsonElement
+import kotlinx.serialization.json.encodeToJsonElement
+import net.minecraft.text.MutableText
+import net.minecraft.text.Text
+import moe.nea.firmament.jarvis.JarvisIntegration
+import moe.nea.firmament.util.MC
+
+class HudMetaHandler(val config: ManagedConfig, val label: MutableText, val width: Int, val height: Int) :
+    ManagedConfig.OptionHandler<HudMeta> {
+    override fun toJson(element: HudMeta): JsonElement? {
+        return Json.encodeToJsonElement(element.position)
+    }
+
+    override fun fromJson(element: JsonElement): HudMeta {
+        return HudMeta(Json.decodeFromJsonElement(element), label, width, height)
+    }
+
+    override fun emitGuiElements(opt: ManagedConfig.Option<HudMeta>, guiAppender: GuiAppender) {
+        guiAppender.appendLabeledRow(opt.labelText, WButton(Text.translatable("firmament.hud.edit", label))
+            .also {
+                it.setOnClick {
+                    MC.screen = JarvisIntegration.jarvis.getHudEditor(
+                        guiAppender.screenAccessor.invoke(),
+                        listOf(opt.value)
+                    )
+                }
+            })
+    }
+}

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

@@ -0,0 +1,46 @@
+package moe.nea.firmament.gui.config
+
+import moe.nea.jarvis.api.JarvisHud
+import moe.nea.jarvis.api.JarvisScalable
+import kotlinx.serialization.Serializable
+import net.minecraft.text.Text
+
+@Serializable
+data class HudPosition(
+    var x: Double,
+    var y: Double,
+    var scale: Float,
+)
+
+
+data class HudMeta(
+    val position: HudPosition,
+    private val label: Text,
+    private val width: Int,
+    private val height: Int,
+) : JarvisScalable, JarvisHud {
+    override fun getX(): Double = position.x
+
+    override fun setX(newX: Double) {
+        position.x = newX
+    }
+
+    override fun getY(): Double = position.y
+
+    override fun setY(newY: Double) {
+        position.y = newY
+    }
+
+    override fun getLabel(): Text = label
+
+    override fun getWidth(): Int = width
+
+    override fun getHeight(): Int = height
+
+    override fun getScale(): Float = position.scale
+
+    override fun setScale(newScale: Float) {
+        position.scale = newScale
+    }
+
+}

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

@@ -21,6 +21,7 @@ package moe.nea.firmament.gui.config
 import io.github.cottonmc.cotton.gui.client.CottonClientScreen
 import io.github.cottonmc.cotton.gui.client.LightweightGuiDescription
 import io.github.cottonmc.cotton.gui.widget.data.Insets
+import moe.nea.jarvis.api.Point
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.JsonElement
@@ -150,6 +151,19 @@ abstract class ManagedConfig(val name: String) {
     }
 
 
+    protected fun position(
+        propertyName: String,
+        width: Int,
+        height: Int,
+        default: () -> Point,
+    ): Option<HudMeta> {
+        val label = Text.translatable("firmament.config.${name}.${propertyName}")
+        return option(propertyName, {
+            val p = default()
+            HudMeta(HudPosition(p.x, p.y, 1F), label, width, height)
+        }, HudMetaHandler(this, label, width, height))
+    }
+
     protected fun integer(
         propertyName: String,
         min: Int,
@@ -175,18 +189,26 @@ abstract class ManagedConfig(val name: String) {
 
     fun getConfigEditor(parent: Screen? = null): CottonClientScreen {
         val lwgd = LightweightGuiDescription()
-        val guiapp = GuiAppender(20)
+        var screen: Screen? = null
+        val guiapp = GuiAppender(20, { requireNotNull(screen) { "Screen Accessor called too early" } })
         latestGuiAppender = guiapp
         guiapp.panel.insets = Insets.ROOT_PANEL
         sortedOptions.forEach { it.appendToGui(guiapp) }
         guiapp.reloadables.forEach { it() }
         lwgd.setRootPanel(guiapp.panel)
-        return object : CottonClientScreen(lwgd) {
-            override fun close() {
-                latestGuiAppender = null
-                MC.screen = parent
+        screen =
+            object : CottonClientScreen(lwgd) {
+                override fun init() {
+                    latestGuiAppender = guiapp
+                    super.init()
+                }
+
+                override fun close() {
+                    latestGuiAppender = null
+                    MC.screen = parent
+                }
             }
-        }
+        return screen
     }
 
     fun showConfigEditor(parent: Screen? = null) {