]> gitweb.fperrin.net Git - GpsPrune.git/blobdiff - tim/prune/function/SetMapBgFunction.java
Version 7, February 2009
[GpsPrune.git] / tim / prune / function / SetMapBgFunction.java
diff --git a/tim/prune/function/SetMapBgFunction.java b/tim/prune/function/SetMapBgFunction.java
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+package tim.prune.function;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+
+import javax.swing.BoxLayout;
+import javax.swing.ButtonGroup;
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JRadioButton;
+import javax.swing.JTextField;
+
+import tim.prune.App;
+import tim.prune.Config;
+import tim.prune.DataSubscriber;
+import tim.prune.GenericFunction;
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+
+/**
+ * Function to set the tile server for the map backgrounds
+ */
+public class SetMapBgFunction extends GenericFunction
+{
+       private JDialog _dialog = null;
+       private JButton _okButton = null;
+       private JRadioButton[] _serverRadios = null;
+       private JTextField _serverUrl = null;
+       /** Index of 'other' server with freeform url */
+       private static final int OTHER_SERVER_NUM = 3;
+
+
+       /**
+        * Constructor
+        * @param inApp app object
+        */
+       public SetMapBgFunction(App inApp)
+       {
+               super(inApp);
+       }
+
+       /** Get the name key */
+       public String getNameKey() {
+               return "function.setmapbg";
+       }
+
+       /**
+        * Begin the function
+        */
+       public void begin()
+       {
+               // Make dialog window
+               if (_dialog == null)
+               {
+                       _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
+                       _dialog.setLocationRelativeTo(_parentFrame);
+                       _dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+                       _dialog.getContentPane().add(makeDialogComponents());
+                       initValues();
+                       _dialog.pack();
+               }
+               enableOK();
+               _dialog.setVisible(true);
+       }
+
+
+       /**
+        * Create dialog components
+        * @return Panel containing all gui elements in dialog
+        */
+       private Component makeDialogComponents()
+       {
+               JPanel dialogPanel = new JPanel();
+               dialogPanel.setLayout(new BorderLayout());
+               // Main panel
+               JPanel mainPanel = new JPanel();
+               mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
+               _serverRadios = new JRadioButton[4];
+               ButtonGroup serverRadioGroup = new ButtonGroup();
+               String[] serverKeys = {"dialog.setmapbg.mapnik", "dialog.setmapbg.osma",
+                       "dialog.setmapbg.cyclemap", "dialog.setmapbg.other"};
+               // action listener for radios
+               ActionListener changeListener = new ActionListener() {
+                       public void actionPerformed(ActionEvent arg0) {
+                               enableOK();
+                       }
+               };
+               // Create four radio buttons
+               for (int i=0; i<4; i++)
+               {
+                       _serverRadios[i] = new JRadioButton(I18nManager.getText(serverKeys[i]));
+                       _serverRadios[i].addActionListener(changeListener);
+                       serverRadioGroup.add(_serverRadios[i]);
+                       mainPanel.add(_serverRadios[i]);
+               }
+               // entry field for other server urls
+               mainPanel.add(new JLabel(I18nManager.getText("dialog.setmapbg.server")));
+               _serverUrl = new JTextField("", 12);
+               _serverUrl.addKeyListener(new KeyAdapter() {
+                       public void keyReleased(KeyEvent e) {
+                               super.keyReleased(e);
+                               enableOK();
+                       }
+               });
+               mainPanel.add(_serverUrl);
+               dialogPanel.add(mainPanel, BorderLayout.NORTH);
+
+               // button panel at bottom
+               JPanel buttonPanel = new JPanel();
+               buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+               _okButton = new JButton(I18nManager.getText("button.ok"));
+               ActionListener okListener = new ActionListener() {
+                       public void actionPerformed(ActionEvent e)
+                       {
+                               finish();
+                       }
+               };
+               _okButton.addActionListener(okListener);
+               buttonPanel.add(_okButton);
+               JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
+               cancelButton.addActionListener(new ActionListener() {
+                       public void actionPerformed(ActionEvent e)
+                       {
+                               _dialog.dispose();
+                       }
+               });
+               buttonPanel.add(cancelButton);
+               dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
+               return dialogPanel;
+       }
+
+
+       /**
+        * Get the initial values from the Config and set gui values accordingly
+        */
+       private void initValues()
+       {
+               // Get values from config
+               try {
+                       _serverRadios[Config.getMapServerIndex()].setSelected(true);
+               }
+               catch (ArrayIndexOutOfBoundsException e) {} // ignore
+               String url = Config.getMapServerUrl();
+               if (url != null) {_serverUrl.setText(url);}
+               // Choose default if none selected
+               if (getSelectedServer() < 0) {
+                       _serverRadios[0].setSelected(true);
+               }
+       }
+
+       /**
+        * @return index of selected radio button, or -1 if none
+        */
+       private int getSelectedServer()
+       {
+               // Loop over all four radios
+               for (int i=0; i<4; i++) {
+                       if (_serverRadios[i].isSelected()) {return i;}
+               }
+               // None selected
+               return -1;
+       }
+
+       /**
+        * Enable or disable the OK button according to the selection
+        */
+       private void enableOK()
+       {
+               int serverNum = getSelectedServer();
+               _okButton.setEnabled(inputOK());
+               _serverUrl.setEnabled(serverNum == OTHER_SERVER_NUM);
+       }
+
+       /**
+        * @return true if inputs are ok
+        */
+       private boolean inputOK()
+       {
+               int serverNum = getSelectedServer();
+               return serverNum >= 0 && (serverNum != OTHER_SERVER_NUM || _serverUrl.getText().length() > 4);
+       }
+
+       /**
+        * Finish the dialog when OK pressed
+        */
+       private void finish()
+       {
+               int serverNum = getSelectedServer();
+               if (!inputOK()) {serverNum = 0;}
+               Config.setMapServerIndex(serverNum);
+               Config.setMapServerUrl(_serverUrl.getText());
+               UpdateMessageBroker.informSubscribers(DataSubscriber.MAPSERVER_CHANGED);
+               _dialog.dispose();
+       }
+}