- // the picker's proportion value is fixed
- m_sizer->Add(m_picker, 1, GetDefaultPickerCtrlFlag(), 5);
+ // the picker's proportion value defaults to 1 when there's no text control
+ // associated with it - in that case it defaults to 0
+ m_sizer->Add(m_picker, HasTextCtrl() ? 0 : 1, GetDefaultPickerCtrlFlag(), 5);
+
+ // For aesthetic reasons, make sure the picker is at least as high as the
+ // associated text control and is always at least square.
+ const wxSize pickerBestSize(m_picker->GetBestSize());
+ const wxSize textBestSize( HasTextCtrl() ? m_text->GetBestSize() : wxSize());
+ wxSize pickerMinSize;
+ pickerMinSize.y = wxMax(pickerBestSize.y, textBestSize.y);
+ pickerMinSize.x = wxMax(pickerBestSize.x, pickerMinSize.y);
+ if ( pickerMinSize != pickerBestSize )
+ m_picker->SetMinSize(pickerMinSize);