fix: visibility propagation (#575)

libs/pyTermTk/TermTk/TTkWidgets/container.py

@@ -465,7 +465,7 @@ class TTkContainer(TTkWidget):
                         self._padl, self._padt,
                         self._width   - self._padl - self._padr,
                         self._height  - self._padt - self._padb)
-            self.rootLayout().update()
+            self.rootLayout().update(repaint=repaint, updateLayout=updateLayout)
 
     def getWidgetByName(self, name: str) -> Optional[TTkWidget]:
         '''

tests/t.ui/test.ui.039.visibility.test.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+# MIT License
+#
+# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys, os
+
+sys.path.append(os.path.join(sys.path[0],'../../libs/pyTermTk'))
+import TermTk as ttk
+
+ttk.TTkLog.use_default_file_logging()
+
+root = ttk.TTk()
+
+win = ttk.TTkWindow(parent=root, pos=(5,3), size=(50,20), visible=False)
+frame = ttk.TTkFrame(parent=win, size=(30,10))
+label_test = ttk.TTkLabel(parent=frame, text='LABELLONE')
+
+btn = ttk.TTkButton(parent=root, text='Press ME')
+btn.clicked.connect(win.show)
+
+root.mainloop()