Merge pull request #2164 from maxGimeno/Save_as_hint-GF

Polyhedron_demo: Enhance the 'Save as' dialog

Polyhedron/demo/Polyhedron/MainWindow.cpp

@@ -1537,10 +1537,14 @@ void MainWindow::on_actionSaveAs_triggered()
     return;
   }
   QString caption = tr("Save %1 to File...%2").arg(item->name()).arg(ext);
+  //remove `)`
+  ext.chop(1);
+  //remove `(*.`
+  ext = ext.right(ext.size()-3);
   QString filename = 
     QFileDialog::getSaveFileName(this,
                                  caption,
-                                 QString(),
+                                 QString("%1.%2").arg(item->name()).arg(ext),
                                  filters.join(";;"));
   if(filename.isEmpty())
     return;