added automatic image resizing to fit the window

src/fi/utu/dtek1066/MapDialog.java

@@ -5,6 +5,8 @@ import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -17,6 +19,7 @@ import javax.swing.JCheckBox;
 import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
+import javax.swing.Timer;
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;
@@ -96,7 +99,7 @@ public class MapDialog extends JFrame {
     new MapDialog();
   } // main(String[])
 
-  private JLabel imageLabel = new JLabel();
+  private final JLabel imageLabel = new JLabel();
   private JPanel leftPanel = new JPanel();
   private JButton refreshB = new JButton("Päivitä");
   private JButton leftB = new JButton("<");
@@ -109,6 +112,8 @@ public class MapDialog extends JFrame {
 
   private JButton zoomOutB = new JButton("-");
 
+  private Timer resizeTimer;
+
   public MapDialog() throws Exception {
 
     // Valmistele ikkuna ja lisää siihen komponentit
@@ -134,6 +139,25 @@ public class MapDialog extends JFrame {
     this.zoomInB.addActionListener(bl);
     this.zoomOutB.addActionListener(bl);
 
+    this.resizeTimer = new Timer(250, new ActionListener() {
+      @Override
+      public void actionPerformed(ActionEvent evt) {
+        try {
+          MapDialog.this.updateImage();
+        } catch (Exception e) {
+          e.printStackTrace();
+        }
+      }
+    });
+    this.resizeTimer.setRepeats(false);
+
+    this.addComponentListener(new ComponentAdapter() {
+      @Override
+      public void componentResized(ComponentEvent evt) {
+        MapDialog.this.resizeTimer.restart();
+      }
+    });
+
     this.leftPanel.setLayout(new BoxLayout(this.leftPanel, BoxLayout.Y_AXIS));
     this.leftPanel.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
     this.leftPanel.setMaximumSize(new Dimension(100, 600));
@@ -183,8 +207,9 @@ public class MapDialog extends JFrame {
         try {
           // TODO: coordinate updates
           url = new URL("http://demo.mapserver.org/cgi-bin/wms?SERVICE="
-              + "WMS&VERSION=1.1.1&REQUEST=GetMap&BBOX=-180,-90,180,90&SRS="
-              + "EPSG:4326&WIDTH=1280&HEIGHT=720&LAYERS=" + ss + "&STYLES="
+              + "WMS&VERSION=1.1.1&REQUEST=GetMap&BBOX=-180,-90,180,90&SRS=" + "EPSG:4326&WIDTH="
+              + (MapDialog.this.getWidth() - MapDialog.this.leftPanel.getWidth()) + "&HEIGHT="
+              + MapDialog.this.getHeight() + "&LAYERS=" + ss + "&STYLES="
               + "&FORMAT=image/png&TRANSPARENT=true");
         } catch (MalformedURLException e) {
           e.printStackTrace();