Add 'src/lib/litegraph/' from commit '1b58bf4966e9cdaa04bfaa40f5650b6c6680ab97'

git-subtree-dir: src/lib/litegraph
git-subtree-mainline: 1eadf80fec
git-subtree-split: 1b58bf4966

src/lib/litegraph/src/infrastructure/ConstrainedSize.ts

@@ -0,0 +1,75 @@
+import type { ReadOnlyRect, ReadOnlySize, Size } from "@/interfaces"
+
+import { clamp } from "@/litegraph"
+
+/**
+ * Basic width and height, with min/max constraints.
+ *
+ * - The {@link width} and {@link height} properties are readonly
+ * - Size is set via {@link desiredWidth} and {@link desiredHeight} properties
+ * - Width and height are then updated, clamped to min/max values
+ */
+export class ConstrainedSize {
+  #width: number = 0
+  #height: number = 0
+  #desiredWidth: number = 0
+  #desiredHeight: number = 0
+
+  minWidth: number = 0
+  minHeight: number = 0
+  maxWidth: number = Infinity
+  maxHeight: number = Infinity
+
+  get width() {
+    return this.#width
+  }
+
+  get height() {
+    return this.#height
+  }
+
+  get desiredWidth() {
+    return this.#desiredWidth
+  }
+
+  set desiredWidth(value: number) {
+    this.#desiredWidth = value
+    this.#width = clamp(value, this.minWidth, this.maxWidth)
+  }
+
+  get desiredHeight() {
+    return this.#desiredHeight
+  }
+
+  set desiredHeight(value: number) {
+    this.#desiredHeight = value
+    this.#height = clamp(value, this.minHeight, this.maxHeight)
+  }
+
+  constructor(width: number, height: number) {
+    this.desiredWidth = width
+    this.desiredHeight = height
+  }
+
+  static fromSize(size: ReadOnlySize): ConstrainedSize {
+    return new ConstrainedSize(size[0], size[1])
+  }
+
+  static fromRect(rect: ReadOnlyRect): ConstrainedSize {
+    return new ConstrainedSize(rect[2], rect[3])
+  }
+
+  setSize(size: ReadOnlySize): void {
+    this.desiredWidth = size[0]
+    this.desiredHeight = size[1]
+  }
+
+  setValues(width: number, height: number): void {
+    this.desiredWidth = width
+    this.desiredHeight = height
+  }
+
+  toSize(): Size {
+    return [this.#width, this.#height]
+  }
+}