修复包围盒计算

src/2d/text/TextField.ts

@@ -4,6 +4,7 @@ import {getRGBA, hex2string} from "../utils/index";
 import {ObservablePoint, Rectangle} from "../math/index";
 import Sprite from "../display/Sprite";
 import {Event} from "../events/index";
+import {DisplayObject} from "../display/DisplayObject";
 
 //文本canvas上xy的偏移量
 const padding = 50;
@@ -925,12 +926,20 @@ export class TextField extends Sprite {
 	 * @private
 	 */
 	_calculateBounds() {
-		const {width, height} = this._localBoundsSelf;
+		/*const {width, height} = this._localBoundsSelf;
 		var matrix = this.transform.worldMatrix;
 		this._bounds.x = matrix.tx;
 		this._bounds.y = matrix.ty;
 		this._bounds.width = width;
-		this._bounds.height = height;
+		this._bounds.height = height;*/
+
+		const rect = this._localBoundsSelf;
+		var matrix = this.transform.worldMatrix;
+		matrix.transformPoint(rect.x, rect.y, DisplayObject._p1);
+		matrix.transformPoint(rect.x + rect.width, rect.y, DisplayObject._p2);
+		matrix.transformPoint(rect.x + rect.width, rect.y + rect.height, DisplayObject._p3);
+		matrix.transformPoint(rect.x, rect.y + rect.height, DisplayObject._p4);
+		Rectangle.createFromPoints(this._bounds, DisplayObject._p1, DisplayObject._p2, DisplayObject._p3, DisplayObject._p4);
 	}
 
 	/**