Alter min sizes on show/hide of subs panel.

Fixes CLIENT-178

Change-Id: I22089848657074c81cf906b5c8d4a92dcccb7cb0
Reviewed-on: http://gerrit.dmdirc.com/1802
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

src/com/dmdirc/addons/ui_swing/dialogs/aliases/AliasManagerDialog.java

@@ -341,12 +341,20 @@ public final class AliasManagerDialog extends StandardDialog implements
             dispose();
         } else if (e.getSource() == showSubs) {
             if (subsPanel.isVisible()) {
+                final Dimension minSize = getMinimumSize();
+                minSize.setSize(minSize.getWidth(), minSize.getHeight()
+                        - subsPanel.getSize().getHeight());
+                setMinimumSize(minSize);
                 subsPanel.setVisible(false);
                 pack();
                 showSubs.setText("Show Substitutions");
             } else {
                 subsPanel.setVisible(true);
                 pack();
+                final Dimension minSize = getMinimumSize();
+                minSize.setSize(minSize.getWidth(), minSize.getHeight()
+                        + subsPanel.getSize().getHeight());
+                setMinimumSize(minSize);
                 showSubs.setText("Hide Substitutions");
             }
         }