/// <summary>
        /// Sets up the GUI.
        /// </summary>
        private void setupGUI()
        {
            addWindowListener(this);

            __descriptionTextField = new JTextField(25);
            __origDesc             = __nodes[__nodeNum].getDescription();
            __descriptionTextField.setText(__origDesc);
            __idTextField = new JTextField(10);
            __origID      = __nodes[__nodeNum].getCommonID();
            __idTextField.setText(__origID);
            __idTextField.addKeyListener(this);
            __xTextField = new JTextField(10);
            __origX      = StringUtil.formatString(__nodes[__nodeNum].getX(), "%13.6f").Trim();
            __xTextField.setText(__origX);
            __xTextField.addKeyListener(this);
            __yTextField = new JTextField(10);
            __origY      = StringUtil.formatString(__nodes[__nodeNum].getY(), "%13.6f").Trim();
            __yTextField.setText(__origY);
            __yTextField.addKeyListener(this);
            __areaTextField = new JTextField(10);
            __origArea      = StringUtil.formatString(__nodes[__nodeNum].getArea(), "%13.6f").Trim();
            __areaTextField.setText(__origArea);
            __areaTextField.addKeyListener(this);
            __precipitationTextField = new JTextField(10);
            __origPrecipitation      = StringUtil.formatString(__nodes[__nodeNum].getPrecip(), "%13.6f").Trim();
            __precipitationTextField.setText(__origPrecipitation);
            __precipitationTextField.addKeyListener(this);

            __typeComboBox = new SimpleJComboBox(false);
            __typeComboBox.add(__NODE_DIVERSION);
            __typeComboBox.add(__NODE_DIVERSION_AND_WELL);
            __typeComboBox.add(__NODE_INSTREAM_FLOW);
            __typeComboBox.add(__NODE_OTHER);
            __typeComboBox.add(__NODE_PLAN);
            __typeComboBox.add(__NODE_RESERVOIR);
            __typeComboBox.add(__NODE_STREAMFLOW);
            __typeComboBox.add(__NODE_WELL);

            int type = __nodes[__nodeNum].getType();

            if (type == HydrologyNode.NODE_TYPE_CONFLUENCE)
            {
                __typeComboBox.select(__NODE_CONFLUENCE);
            }
            else if (type == HydrologyNode.NODE_TYPE_DIV)
            {
                __typeComboBox.select(__NODE_DIVERSION);
            }
            else if (type == HydrologyNode.NODE_TYPE_DIV_AND_WELL)
            {
                __typeComboBox.select(__NODE_DIVERSION_AND_WELL);
            }
            else if (type == HydrologyNode.NODE_TYPE_END)
            {
                __typeComboBox.removeAll();
                __typeComboBox.add(__NODE_END);
            }
            else if (type == HydrologyNode.NODE_TYPE_ISF)
            {
                __typeComboBox.select(__NODE_INSTREAM_FLOW);
            }
            else if (type == HydrologyNode.NODE_TYPE_OTHER)
            {
                __typeComboBox.select(__NODE_OTHER);
            }
            else if (type == HydrologyNode.NODE_TYPE_PLAN)
            {
                __typeComboBox.select(__NODE_PLAN);
            }
            else if (type == HydrologyNode.NODE_TYPE_RES)
            {
                __typeComboBox.select(__NODE_RESERVOIR);
            }
            else if (type == HydrologyNode.NODE_TYPE_FLOW)
            {
                __typeComboBox.select(__NODE_STREAMFLOW);
            }
            else if (type == HydrologyNode.NODE_TYPE_WELL)
            {
                __typeComboBox.select(__NODE_WELL);
            }
            else if (type == HydrologyNode.NODE_TYPE_XCONFLUENCE)
            {
                __typeComboBox.select(__NODE_XCONFLUENCE);
            }
            else
            {
                __typeComboBox.removeAll();
                __typeComboBox.add("Unknown Type: " + type);
            }

            __typeComboBox.setMaximumRowCount(__typeComboBox.getItemCount());

            __origIType = type;
            __origType  = __typeComboBox.getSelected();

            __labelPositionComboBox = new SimpleJComboBox(false);
            __labelPositionComboBox.add(__ABOVE_CENTER);
            __labelPositionComboBox.add(__UPPER_RIGHT);
            __labelPositionComboBox.add(__RIGHT);
            __labelPositionComboBox.add(__LOWER_RIGHT);
            __labelPositionComboBox.add(__BELOW_CENTER);
            __labelPositionComboBox.add(__LOWER_LEFT);
            __labelPositionComboBox.add(__LEFT);
            __labelPositionComboBox.add(__UPPER_LEFT);
            __labelPositionComboBox.add(__CENTER);
            __labelPositionComboBox.setMaximumRowCount(__labelPositionComboBox.getItemCount());

            int dir = __nodes[__nodeNum].getLabelDirection() % 10;

            if (dir == 2)
            {
                __labelPositionComboBox.select(__BELOW_CENTER);
            }
            else if (dir == 1)
            {
                __labelPositionComboBox.select(__ABOVE_CENTER);
            }
            else if (dir == 4)
            {
                __labelPositionComboBox.select(__RIGHT);
            }
            else if (dir == 3)
            {
                __labelPositionComboBox.select(__LEFT);
            }
            else if (dir == 7)
            {
                __labelPositionComboBox.select(__UPPER_RIGHT);
            }
            else if (dir == 8)
            {
                __labelPositionComboBox.select(__LOWER_RIGHT);
            }
            else if (dir == 5)
            {
                __labelPositionComboBox.select(__LOWER_LEFT);
            }
            else if (dir == 6)
            {
                __labelPositionComboBox.select(__UPPER_LEFT);
            }
            else if (dir == 9)
            {
                __labelPositionComboBox.select(__CENTER);
            }
            else
            {
                __labelPositionComboBox.removeAll();
                __labelPositionComboBox.add("Unknown Position: " + dir);
            }

            __origIDir = dir;
            __origDir  = __labelPositionComboBox.getSelected();

            __isNaturalFlowCheckBox = new JCheckBox();
            __isImportCheckBox      = new JCheckBox();

            __origDirty = __nodes[__nodeNum].isDirty();

            __reservoirDirectionLabel    = new JLabel("Reservoir Direction: ");
            __reservoirDirectionComboBox = new SimpleJComboBox(false);
            __reservoirDirectionComboBox.setToolTipText("Reservoir body is to the indicated direction " + "(downstream follows the arrow).");
            __reservoirDirectionComboBox.add(__TOP);
            __reservoirDirectionComboBox.add(__BOTTOM);
            __reservoirDirectionComboBox.add(__LEFT);
            __reservoirDirectionComboBox.add(__RIGHT);

            int resDir = __nodes[__nodeNum].getLabelDirection() / 10;

            if (resDir == 1)
            {
                __reservoirDirectionComboBox.select(__BOTTOM);
            }
            else if (resDir == 2)
            {
                __reservoirDirectionComboBox.select(__TOP);
            }
            else if (resDir == 3)
            {
                __reservoirDirectionComboBox.select(__RIGHT);
            }
            else if (resDir == 4)
            {
                __reservoirDirectionComboBox.select(__LEFT);
            }
            else if (resDir == 0)
            {
            }
            else
            {
                __reservoirDirectionComboBox.removeAll();
                __reservoirDirectionComboBox.add("Unknown direction: " + resDir);
            }

            __origResIDir = resDir;
            __origResDir  = __reservoirDirectionComboBox.getSelected();

            JPanel panel = new JPanel();

            panel.setLayout(new GridBagLayout());

            int y = 0;

            JGUIUtil.addComponent(panel, new JLabel("ID: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __idTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Type: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __typeComboBox, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Description: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __descriptionTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("X: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __xTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Y: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __yTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Is natural flow?: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __isNaturalFlowCheckBox, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Is import?: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __isImportCheckBox, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Area: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __areaTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);
            y++;
            JGUIUtil.addComponent(panel, new JLabel("Precipitation: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __precipitationTextField, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);
            if (__nodes[__nodeNum].getIsNaturalFlow())
            {
                __isNaturalFlowCheckBox.setSelected(true);
            }
            else
            {
                __isNaturalFlowCheckBox.setSelected(false);
                __areaTextField.setEnabled(false);
                __precipitationTextField.setEnabled(false);
            }
            __isNaturalFlowCheckBox.addActionListener(this);

            if (__nodes[__nodeNum].getIsImport())
            {
                __isImportCheckBox.setSelected(true);
            }
            else
            {
                __isImportCheckBox.setSelected(false);
            }
            __isImportCheckBox.addActionListener(this);

            __origNaturalFlow = __isNaturalFlowCheckBox.isSelected();
            __origImport      = __isImportCheckBox.isSelected();

            y++;
            JGUIUtil.addComponent(panel, new JLabel("Label Position: "), 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __labelPositionComboBox, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;
            JGUIUtil.addComponent(panel, __reservoirDirectionLabel, 0, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(panel, __reservoirDirectionComboBox, 1, y, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.WEST);

            y++;

            y = addUpstreamNodesToPanel(panel, y);
            addDownstreamNodeToPanel(panel, y);

            getContentPane().add(panel);

            JPanel southPanel = new JPanel();

            southPanel.setLayout(new GridBagLayout());

            __applyButton = new JButton(__BUTTON_APPLY);
            __applyButton.addActionListener(this);
            __okButton = new JButton(__BUTTON_OK);
            __okButton.addActionListener(this);
            JButton cancelButton = new JButton(__BUTTON_CANCEL);

            cancelButton.addActionListener(this);

            JGUIUtil.addComponent(southPanel, __applyButton, 0, 0, 1, 1, 1, 1, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(southPanel, __okButton, 2, 0, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);
            JGUIUtil.addComponent(southPanel, cancelButton, 3, 0, 1, 1, 0, 0, GridBagConstraints.NONE, GridBagConstraints.EAST);

            getContentPane().add(southPanel, "South");

            pack();

            if (__origIType != HydrologyNode.NODE_TYPE_RES)
            {
                __reservoirDirectionLabel.setVisible(false);
                __reservoirDirectionComboBox.setVisible(false);
            }

            __typeComboBox.addActionListener(this);

            if (__parent.inStateModGUI())
            {
                __typeComboBox.setEnabled(false);
                __precipitationTextField.setEditable(false);
                __precipitationTextField.removeKeyListener(this);
                __descriptionTextField.setEditable(false);
                __descriptionTextField.removeKeyListener(this);
                __areaTextField.removeKeyListener(this);
                __areaTextField.setEditable(false);
                __idTextField.removeKeyListener(this);
                __idTextField.setEditable(false);
                __isNaturalFlowCheckBox.setEnabled(false);
                __isImportCheckBox.setEnabled(false);
            }

            JGUIUtil.center(this);
            setVisible(true);
        }