1 files changed, 149 insertions, 0 deletions
diff --git a/Week10 Weather GUI/src/com/camilstaps/week10/OverviewController.java b/Week10 Weather GUI/src/com/camilstaps/week10/OverviewController.java
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+++ b/Week10 Weather GUI/src/com/camilstaps/week10/OverviewController.java
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+/*
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2015 Camil Staps <info@camilstaps.nl>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.camilstaps.week10;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.swing.ImageIcon;
+import javax.swing.JComboBox;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+/**
+ * Controller for the main window
+ * @author Camil Staps, s4498062
+ */
+public class OverviewController {
+    
+    /**
+     * Location of the Buienradar API XML
+     */
+    private final static String XML_LOCATION = "http://xml.buienradar.nl";
+    
+    private final OverviewWindow overviewWindow;
+    private List<WeatherStation> weatherStations;
+    
+    /**
+     * Refresh button:
+     *  1. Store selected weatherstation id
+     *  2. Reload XML
+     *  3. Restore previously selected weatherstation
+     */
+    private final ActionListener refreshActionListener = new ActionListener() {
+        @Override
+        public void actionPerformed(ActionEvent ae) {
+            if (ae.getActionCommand().equals("Refresh")) {
+                int id = ((WeatherStation) overviewWindow.getWeatherStationPicker().getSelectedItem()).getId();
+                
+                loadXML();
+                
+                for (WeatherStation ws : weatherStations) {
+                    if (ws.getId() == id) {
+                        overviewWindow.getWeatherStationPicker().setSelectedItem(ws);
+                        break;
+                    }
+                }
+                
+                loadWeatherInfo();
+            }
+        }
+    };
+    
+    /**
+     * When the ComboBox changes, change the information in the label accordingly
+     */
+    private final ActionListener newStationActionListener = new ActionListener() {
+        @Override
+        public void actionPerformed(ActionEvent ae) {
+            if (ae.getActionCommand().equals("comboBoxChanged")) {
+                loadWeatherInfo();
+            }
+        }
+    };
+    
+    /**
+     * Load the XML for the first time, register ActionListeners and display info
+     * @param ow 
+     */
+    public OverviewController(OverviewWindow ow) {
+        overviewWindow = ow;
+        
+        loadXML();
+        
+        overviewWindow.getRefreshButton().addActionListener(refreshActionListener);
+        overviewWindow.getWeatherStationPicker().addActionListener(newStationActionListener);
+        
+        loadWeatherInfo();
+    }
+    
+    /**
+     * Load XML from the Buienradar API and store in the weatherStations List.
+     */
+    private void loadXML() {
+        try {
+            DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
+            Document doc = docBuilder.parse(XML_LOCATION);
+            
+            doc.getDocumentElement().normalize();
+            NodeList weatherstationsList = doc.getElementsByTagName("weerstation");
+            weatherStations = new ArrayList<>();
+            for (int i = 0; i < weatherstationsList.getLength(); i++) {
+                weatherStations.add(new WeatherStation((Element) weatherstationsList.item(i)));
+            }
+            Collections.sort(weatherStations);
+            
+            JComboBox<WeatherStation> comboBox = overviewWindow.getWeatherStationPicker();
+            comboBox.removeAllItems();
+            for (WeatherStation ws : weatherStations) {
+                comboBox.addItem(ws);
+            }
+        } catch (ParserConfigurationException | SAXException | IOException ex) {
+            Logger.getLogger(Week10WeatherGUI.class.getName()).log(Level.SEVERE, null, ex);
+        }
+    }
+    
+    /**
+     * Show the weather information in the display.
+     */
+    private void loadWeatherInfo() {
+        WeatherStation selected = (WeatherStation) overviewWindow.getWeatherStationPicker().getSelectedItem();
+        if (selected != null) {
+            overviewWindow.getWeatherInformationDisplay().setText(selected.getWeatherDescription());
+            overviewWindow.getWeatherInformationDisplay().setIcon(new ImageIcon(selected.getWeatherIcon()));
+        }
+    }
+    
+}