Type cleanup, annotation as function, fix import

Naming now uniformly refers to the widget as an Annotated Number and the
widget is now implemented as a proper typescript class

annotatedNumber widgets can optionally have an annotation function set.
This allows for extensions to set annotations on ranges of values.

Fixed the app import incorrectly having an extension

src/extensions/core/annotatedNumber.ts

@@ -1,5 +1,5 @@
 import { LiteGraph, LGraphCanvas } from '@comfyorg/litegraph'
-import { app } from '../../scripts/app.js'
+import { app } from '../../scripts/app'
 import { getColorPalette } from './colorPalette'
 import { ComfyWidgets } from '../../scripts/widgets'
 import { LGraphNode } from '@comfyorg/litegraph'
@@ -96,12 +96,21 @@ function draw(ctx, node, widget_width, y, H) {
       this.options.precision !== undefined ? this.options.precision : 3
     )
     ctx.fillText(text, widget_width - margin * 2 - 20, y + H * 0.7)
-    if (this.options.mappedValues && this.value in this.options.mappedValues) {
+    let annotation = ''
+    if (this.annotation) {
+      annotation = this.annotation(this.value)
+    } else if (
+      this.options.annotation &&
+      this.value in this.options.annotation
+    ) {
+      annotation = this.options.annotation[this.value]
+    }
+    if (annotation) {
       //TODO: measure this text
       ctx.fillStyle = litegraph_base.WIDGET_OUTLINE_COLOR
       const value_width = ctx.measureText(text).width
       ctx.fillText(
-        this.options.mappedValues[this.value],
+        annotation,
         widget_width - margin * 2 - 25 - value_width,
         y + H * 0.7
       )
@@ -171,28 +180,35 @@ function mouse(event, [x, y], node) {
     )
   return true
 }
-function mappednumber(node, inputName, inputData, app): { widget: IWidget } {
-  // @ts-expect-error We are defining a new type
-  const type: widgetType = 'MAPPEDNUMBER'
-  let w = {
-    name: inputName,
-    type: type,
-    value: 0,
-    draw: draw,
-    mouse: mouse,
-    computeSize: undefined, //TODO: calculate minimum width
-    options: {},
-    linkedWidgets: []
+class AnnotatedNumber implements IWidget {
+  // @ts-expect-error We must forcibly set a type here to allow custom mouse and draw
+  type: widgetTypes = 'annotatedNumber'
+  draw = draw
+  mouse = mouse
+  options = {}
+  linkedWidgets = []
+  name: string
+  value: number
+  annotation: (value: number) => string
+  computeSize(width: number): [number, number] {
+    return [width, 20]
   }
-  if (inputData.length > 1) {
-    w.options = inputData[1]
-    for (let k of ['default', 'min', 'max']) {
-      if (inputData[1][k] != undefined) {
-        w.value = inputData[1][k]
-        break
+  constructor(inputName, inputData) {
+    this.name = inputName
+    if (inputData.length > 1) {
+      this.options = inputData[1]
+      for (let k of ['default', 'min', 'max']) {
+        if (inputData[1][k] != undefined) {
+          this.value = inputData[1][k]
+          break
+        }
       }
     }
   }
+}
+
+function annotatedNumber(node, inputName, inputData, app): { widget: IWidget } {
+  let w = new AnnotatedNumber(inputName, inputData)
   if (!node.widgets) {
     node.widgets = []
   }
@@ -209,14 +225,14 @@ ComfyWidgets.FLOAT = function (
   if (
     inputData[1]?.reset == undefined &&
     inputData[1]?.disable == undefined &&
-    inputData[1]?.mappedValues == undefined
+    inputData[1]?.annotation == undefined
   ) {
     return originalFLOAT(node, inputName, inputData, app)
   }
   if (inputData[1]['display'] === 'slider') {
     return originalFLOAT(node, inputName, inputData, app)
   }
-  return mappednumber(node, inputName, inputData, app)
+  return annotatedNumber(node, inputName, inputData, app)
 }
 const originalINT = ComfyWidgets.INT
 ComfyWidgets.INT = function (
@@ -228,27 +244,23 @@ ComfyWidgets.INT = function (
   if (
     inputData[1]?.reset ||
     inputData[1]?.disable ||
-    inputData[1]?.mappedValues
+    inputData[1]?.annotation
   ) {
-    return mappednumber(node, inputName, inputData, app)
+    return annotatedNumber(node, inputName, inputData, app)
   }
   return originalINT(node, inputName, inputData, app)
 }
 
 app.registerExtension({
-  name: 'Comfy.MappedNumber',
+  name: 'Comfy.AnnotatedNumber',
   async getCustomWidgets(app) {
     return {
-      MAPPEDNUMBER: mappednumber
+      ANNOTATEDNUMBER: annotatedNumber
     }
   },
   registerCustomNodes() {
     class TestNum extends LGraphNode {
       static category = 'utils'
-
-      color = LGraphCanvas.node_colors.yellow.color
-      bgcolor = LGraphCanvas.node_colors.yellow.bgcolor
-      groupcolor = LGraphCanvas.node_colors.yellow.groupcolor
       isVirtualNode = true
       collapsable = true
       title_mode = LiteGraph.NORMAL_TITLE
@@ -256,25 +268,30 @@ app.registerExtension({
 
       constructor(title?: string) {
         super(title)
-        app.widgets.MAPPEDNUMBER(
+        app.widgets.ANNOTATEDNUMBER(
           // Should we extends LGraphNode?  Yesss
           this,
           'x',
           [
-            'MAPPEDNUMBER',
+            'ANNOTATEDNUMBER',
             {
               default: 5,
               reset: 5,
               disable: 0,
-              mappedValues: { 6: 'def+1', 5: 'default', 0: 'disabled' },
+              annotation: { 6: 'def+1', 5: 'default', 0: 'disabled' },
               step: 10
             }
           ],
           app
         )
+        let annotatedWidget = this.widgets[0] as AnnotatedNumber
+        annotatedWidget.annotation = function (value) {
+          return ['smol', 'medium', 'big', 'real big'][
+            Math.floor(Math.log10(value))
+          ]
+        }
       }
     }
-
     // Load default visibility
 
     LiteGraph.registerNodeType('TestNum', TestNum)