Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / function / DeleteFieldValues.java

diff --git a/src/tim/prune/function/DeleteFieldValues.java b/src/tim/prune/function/DeleteFieldValues.java
new file mode 100644 (file)
index 0000000..0c0e44f
--- /dev/null
+++ b/src/tim/prune/function/DeleteFieldValues.java
@@ -0,0 +1,172 @@
+package tim.prune.function;
+
+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JList;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.ListSelectionModel;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+
+import tim.prune.App;
+import tim.prune.DataSubscriber;
+import tim.prune.GenericFunction;
+import tim.prune.I18nManager;
+import tim.prune.UpdateMessageBroker;
+import tim.prune.data.Field;
+import tim.prune.data.FieldList;
+import tim.prune.data.Track;
+import tim.prune.undo.UndoDeleteFieldValues;
+
+/**
+ * Class to provide the function to delete the values of a single field
+ * for all points in the current range
+ */
+public class DeleteFieldValues extends GenericFunction
+{
+       private JDialog _dialog = null;
+       private JList<String> _fieldList = null;
+       private FieldListModel _listModel = null;
+       private JButton _okButton = null;
+
+
+       /**
+        * Constructor
+        * @param inApp application object for callback
+        */
+       public DeleteFieldValues(App inApp)
+       {
+               super(inApp);
+       }
+
+       /** Get the name key */
+       public String getNameKey() {
+               return "function.deletefieldvalues";
+       }
+
+       /**
+        * 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());
+                       _dialog.pack();
+               }
+               // refresh the dialog
+               initDialog();
+               // Check whether any fields left
+               if (_listModel.getSize() < 1) {
+                       _app.showErrorMessage(getNameKey(), "dialog.deletefieldvalues.nofields");
+               }
+               else {
+                       _dialog.setVisible(true);
+               }
+       }
+
+
+       /**
+        * Create dialog components
+        * @return Panel containing all gui elements in dialog
+        */
+       private JPanel makeDialogComponents()
+       {
+               JPanel dialogPanel = new JPanel();
+               dialogPanel.setLayout(new BorderLayout());
+               dialogPanel.add(new JLabel(I18nManager.getText("dialog.deletefieldvalues.intro")), BorderLayout.NORTH);
+               // List in centre
+               _fieldList = new JList<String>(new String[] {"First field", "Second field"});
+               // These entries will be replaced by the initDialog method
+               _fieldList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+               _fieldList.addListSelectionListener(new ListSelectionListener() {
+                       public void valueChanged(ListSelectionEvent e) {
+                               _okButton.setEnabled(_fieldList.getSelectedIndex() >= 0);
+                       }
+               });
+               dialogPanel.add(new JScrollPane(_fieldList), BorderLayout.CENTER);
+               // 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);
+               _okButton.setEnabled(false);
+               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);
+               dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
+               return dialogPanel;
+       }
+
+       /**
+        * Initialise the dialog with the field list
+        */
+       private void initDialog()
+       {
+               _listModel = new FieldListModel();
+               int selStart = _app.getTrackInfo().getSelection().getStart();
+               int selEnd = _app.getTrackInfo().getSelection().getEnd();
+               // Loop over fields in track
+               final Track track = _app.getTrackInfo().getTrack();
+               FieldList fieldsInTrack = track.getFieldList();
+               for (int i=0; i<fieldsInTrack.getNumFields(); i++) {
+                       Field field = fieldsInTrack.getField(i);
+                       if (field != Field.LATITUDE && field != Field.LONGITUDE
+                               && track.hasData(field, selStart, selEnd))
+                       {
+                               _listModel.addField(field);
+                       }
+               }
+               _fieldList.setModel(_listModel);
+               _fieldList.clearSelection();
+               _okButton.setEnabled(false);
+       }
+
+       /**
+        * Finish the dialog when OK pressed
+        */
+       private void finish()
+       {
+               // Complete function
+               Field field = _listModel.getField(_fieldList.getSelectedIndex());
+               if (field != null)
+               {
+                       UndoDeleteFieldValues undo = new UndoDeleteFieldValues(_app.getTrackInfo(), field);
+                       final int selStart = _app.getTrackInfo().getSelection().getStart();
+                       final int selEnd = _app.getTrackInfo().getSelection().getEnd();
+                       final Track track = _app.getTrackInfo().getTrack();
+                       for (int i=selStart; i<= selEnd; i++) {
+                               track.getPoint(i).setFieldValue(field, null, false);
+                       }
+                       _dialog.dispose();
+                       _app.getTrackInfo().getSelection().markInvalid();
+                       UpdateMessageBroker.informSubscribers(DataSubscriber.DATA_EDITED);
+                       _app.completeFunction(undo, I18nManager.getText("confirm.deletefieldvalues"));
+               }
+       }
+}