添加组件，实现选择路径功能

components/Window.slint

@@ -1,5 +1,74 @@
+import { Button, VerticalBox } from "std-widgets.slint";
+
 export component MainWindow inherits Window {
     height: 180px;
     width: 320px;
     title: "VoileTftpTools";
+    default-font-family: "Segoe UI";
+    default-font-size: 16px;
+    default-font-weight: 700;
+    //选择路径回调
+    callback BrowserFolder() -> string;
+    property <string> SelectFolder: "";
+    //启动回调
+    callback StartTftp();
+    //停止回调
+    callback StopTftp();
+    Rectangle {
+        height: 35px;
+        width: 95px;
+        x: 10px;
+        y: 10px;
+        Button {
+            height: parent.height;
+            width: parent.width;
+            text: "选择路径";
+            clicked => {
+                SelectFolder = BrowserFolder();
+            }
+        }
+    }
+
+    Rectangle {
+        height: 35px;
+        width: 95px;
+        x: 110px;
+        y: 10px;
+        Button {
+            height: parent.height;
+            width: parent.width;
+            text: "启动";
+            clicked => {
+                StartTftp();
+            }
+        }
+    }
+
+    Rectangle {
+        height: 35px;
+        width: 95px;
+        x: 210px;
+        y: 10px;
+        Button {
+            height: parent.height;
+            width: parent.width;
+            text: "停止";
+            clicked => {
+                StopTftp();
+            }
+        }
+    }
+
+    Text {
+        x: 13px;
+        y: 55px;
+        text: "路径：";
+    }
+    Text {
+        x: 60px;
+        y: 55px;
+        width: 200px;
+        wrap: word-wrap; // 自动换行关键属性
+        text: SelectFolder;
+    }
 }