Fix context painting empty Table

@@ -9,6 +9,7 @@
 - Optimize file size
 - Add PdfColor.shade
 - Uniformize examples
+- Fix context painting empty Table
 
 ## 1.5.0
 

@@ -409,16 +409,16 @@ class Table extends Widget implements SpanningWidget {
   void paint(Context context) {
     super.paint(context);
 
+    if (_context.lastLine == 0) {
+      return;
+    }
+
     final Matrix4 mat = Matrix4.identity();
     mat.translate(box.x, box.y);
     context.canvas
       ..saveContext()
       ..setTransform(mat);
 
-    if (_context.lastLine == 0) {
-      return;
-    }
-
     int index = 0;
     for (TableRow row in children) {
       if (index++ < _context.firstLine && !row.repeat) {