SerialMonitor: set minimum sizes to avoid components disappearing

Author: Federico Fissore

app/src/processing/app/AbstractMonitor.java

@@ -90,7 +90,11 @@ public void actionPerformed(ActionEvent event) {
     autoscrollBox = new JCheckBox(_("Autoscroll"), true);
 
     noLineEndingAlert = new JLabel(I18n.format(_("You've pressed {0} but nothing was sent. Should you select a line ending?"), _("Send")));
+    noLineEndingAlert.setToolTipText(noLineEndingAlert.getText());
     noLineEndingAlert.setForeground(pane.getBackground());
+    Dimension minimumSize = new Dimension(noLineEndingAlert.getMinimumSize());
+    minimumSize.setSize(minimumSize.getWidth() / 3, minimumSize.getHeight());
+    noLineEndingAlert.setMinimumSize(minimumSize);
 
     lineEndings = new JComboBox(new String[]{_("No line ending"), _("Newline"), _("Carriage return"), _("Both NL & CR")});
     lineEndings.addActionListener(new ActionListener() {
@@ -124,6 +128,8 @@ public void actionPerformed(ActionEvent event) {
     pane.add(Box.createRigidArea(new Dimension(8, 0)));
     pane.add(serialRates);
 
+    this.setMinimumSize(new Dimension(pane.getMinimumSize().width, this.getPreferredSize().height));
+
     getContentPane().add(pane, BorderLayout.SOUTH);
 
     pack();