New feat

- SFTP download
- open downloaded files in other apps

lib/core/extension/stringx.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/material.dart';
 import 'package:toolbox/data/model/distribution.dart';
 
 extension StringX on String {
@@ -21,4 +22,40 @@ extension StringX on String {
   Uri get uri {
     return Uri.parse(this);
   }
+
+  Widget omitStartStr(
+      {TextStyle? style, TextOverflow? overflow, int? maxLines}) {
+    return LayoutBuilder(builder: (context, size) {
+      bool exceeded = false;
+      int len = 0;
+      for (; !exceeded && len < length; len++) {
+        // Build the textspan
+        var span = TextSpan(
+          text: 'A' * 7 + substring(length - len),
+          style: style ?? Theme.of(context).textTheme.bodyText2,
+        );
+
+        // Use a textpainter to determine if it will exceed max lines
+        var tp = TextPainter(
+          maxLines: maxLines ?? 1,
+          textDirection: TextDirection.ltr,
+          text: span,
+        );
+
+        // trigger it to layout
+        tp.layout(maxWidth: size.maxWidth);
+
+        // whether the text overflowed or not
+        exceeded = tp.didExceedMaxLines;
+      }
+
+      return Text(
+        (exceeded ? '...' : '') + substring(length - len),
+        overflow: overflow ?? TextOverflow.fade,
+        softWrap: false,
+        maxLines: maxLines ?? 1,
+        style: style,
+      );
+    });
+  }
 }