/*
Research Project:   Graphical Database for Category Theory
                    J. Bradbury, Dr. R. Rosebrugh, I. Rutherford
                    Mount Allison University 2001
File:               RemoveFunctorFrame.java
Description:	      This class displays the dialog that is displayed upon
                    close when a category is found that has not been saved or
                    has been modified since it has last been saved.
*/

//Import statements
import java.awt.*;
import java.awt.event.*;

public class SaveDialog extends Dialog {

  //GUI components of SaveDialog
  Panel panel1 = new Panel();
  Label titleLabel = new Label();
  Label catName = new Label();
  Label fileName = new Label();
  Label detailsLabel = new Label();
  TextArea detailsArea = new TextArea("", 10, 10, TextArea.SCROLLBARS_VERTICAL_ONLY);
  TextField catField = new TextField();
  TextField fileField = new TextField();
  Button saveAsButton = new Button();
  Button cancelButton = new Button();
  Button saveButton = new Button();
  GridBagLayout gridBagLayout1 = new GridBagLayout();
  GBConstraintsEditor g = new GBConstraintsEditor();

  //Category to save
  Category cat = new Category();

  //Main Window frame to get category
  //data from
  MainWindow mw;

  public SaveDialog(Frame frame, String title, boolean modal)
  //Constructor that allows user to specify the
  //parent frame, the title of the frame, and the modal
  {
    super(frame, title, modal);
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try  {
      //Call init method
      jbInit();
      //Add panel created in init to the current
      //dialog window
      add(panel1);
      pack();
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }

  public SaveDialog(Frame frame)
  //Constructor that allows the user to specify the
  //parent frame only
  {
    //Call constructor that accepts frame, title,
    //and modal as parameters
    this(frame, "GDCT: Save on Exit", false);
  }

  public SaveDialog(Frame frame, boolean modal)
  //Constructor that allows user to specify the
  //parent frame and the modal
  {
    //Call constructor that accepts frame, title,
    //and modal as parameters
    this(frame, "GDCT: Save on Exit", modal);
  }

  public SaveDialog(Frame frame, String title)
  //Constructor that allows user to specify the parent
  //frame and the title of the frame
  {
    //Call constructor that accepts frame, title,
    //and modal as parameters
    this(frame, title, false);
  }

  public void setCategory(MainWindow temp)
  //Set the current category file
  {
    mw = temp;
    cat = mw.cat;

    //Initialize the category name and the file name fields
    catField.setText(cat.name);

    //Initialize the text in the details of modification text area
    if (cat.mod.createCat == true)
    {
      detailsArea.setText("This category was created by the GDCT application and has not been saved.");
      fileField.setText("no filename");
    }
    else if (cat.mod.functorCat == true)
    {
      detailsArea.setText("This category was loaded as part of a functor and has not been saved.");
      fileField.setText("no filename");
    }
    else if (cat.mod.dualCat == true)
    {
      detailsArea.setText("This category was created as a dual category and has not been saved.");
      fileField.setText("no filename");
    }
    else if (cat.mod.downloadCat == true)
    {
      detailsArea.setText("This category was downloaded from a server and has not been saved.");
      fileField.setText("no filename");
    }
    else
      fileField.setText(cat.filename);
    if (cat.mod.dataAdded || cat.mod.dataRemoved || (!cat.gml.equals(cat.originalGml)) || cat.mod.nameChanged || cat.mod.madeConfluent)
    {
      detailsArea.append("The following modifications have been made to this category:\n");
      if (cat.mod.nameChanged)
        detailsArea.append("-> Category Name was changed\n");
      if (cat.mod.dataAdded)
        detailsArea.append("-> Data was added\n");
      if (cat.mod.dataRemoved)
        detailsArea.append("-> Data was removed\n");
      if (!cat.gml.equals(cat.originalGml))
        detailsArea.append("-> Graphical Display was changed\n");
      if (cat.mod.madeConfluent)
        detailsArea.append("-> Relations were added to the category through the Make Confluent tool\n");
    }
    else
    {
      detailsArea.append("No additional modifications were made to this category.\n");
    }
  }

  void jbInit() throws Exception
  //Init method that is called from the constructor
  {
    //Initialize the text in the labels
    panel1.setSize(new Dimension(408, 304));
    titleLabel.setText("A Modified File has been Located. . .");
    catName.setText("Category Name:");
    fileName.setText("File Name:");
    detailsLabel.setText("Details of Modifications:");

    //Initialize the labels on the save, save as, and cancel buttons
    saveAsButton.setLabel("Save As");
    saveButton.setLabel("Save");
    cancelButton.setLabel("Close");

    //Create action listeners for save, save as, and cancel buttons
    saveAsButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        saveAsButton_actionPerformed(e);
      }
    });
    saveButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        saveButton_actionPerformed(e);
      }
    });
    cancelButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        cancelButton_actionPerformed(e);
      }
    });

    //Set Text areas to not editable
    detailsArea.setBackground(Color.white);
    detailsArea.setEditable(false);
    catField.setBackground(Color.white);
    catField.setEditable(false);
    fileField.setBackground(Color.white);
    fileField.setEditable(false);

    //Set layout of dialog to GridBagLayout
    panel1.setLayout(gridBagLayout1);

    //Set Location of GUI Components in Layout
    panel1.add(titleLabel, g.getConstraints(0, 0, 3, 1, 0.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(8, 7, 0, 0), 27, -6));
    panel1.add(catName, g.getConstraints(0, 1, 2, 1, 0.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(6, 7, 0, 0), 46, 3));
    panel1.add(fileName, g.getConstraints(0, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 7, 0, 0), 58, 2));
    panel1.add(detailsLabel, g.getConstraints(0, 3, 1, 1, 0.0, 0.0
            ,GridBagConstraints.EAST, GridBagConstraints.NONE, new Insets(6, 7, 0, 0), -10, -5));
    panel1.add(detailsArea, g.getConstraints(1, 4, 3, 1, 1.0, 1.0
            ,GridBagConstraints.NORTHWEST, GridBagConstraints.BOTH, new Insets(-19, 23, 0, 16), -220, -83));
    panel1.add(catField, g.getConstraints(2, 1, 2, 1, 1.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(5, 7, 3, 17), 49, -3));
    panel1.add(fileField, g.getConstraints(2, 2, 2, 1, 1.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(7, 6, 8, 17), 209, -3));
    panel1.add(saveAsButton, g.getConstraints(1, 5, 2, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(14, 0, 20, 0), 49, 7));
    panel1.add(cancelButton, g.getConstraints(3, 5, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(13, 18, 20, 15), 68, 8));
    panel1.add(saveButton, g.getConstraints(0, 5, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(14, 7, 21, 0), 66, 6));
  }

  protected void processWindowEvent(WindowEvent e) {
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      dispose();
    }
    super.processWindowEvent(e);
  }

  void saveButton_actionPerformed(ActionEvent e)
  //Action Listener for Save Button
  {
    //Save Category information including current display
    //of category in file
    String file = cat.filename;
    if (file != null)
    {
      FileProcessing f = new FileProcessing(file, mw, true, true);
      if (file.endsWith(".cat"))
        f.saveCATFile();
      else
        f.saveCGLFile();
      mw.addRecentCat(file);
      //Close Save Dialog Window
      dispose();
    }
    else
      new MessageDialog(mw, "Error", "Use Save As to save categories that have never been saved before", true);

  }

  void saveAsButton_actionPerformed(ActionEvent e)
  //Action Listener for Save As Button
  {
    //Save Category information including current display
    //of category in file
    if (cat.filename.endsWith(".cat"))
    {
      FileDialog c = new FileDialog(mw, "Save Category File (CAT)", FileDialog.SAVE);
      c.setVisible(true);
      String file = c.getFile();
      if (file != null)
      {
        file = c.getDirectory() + c.getFile();
        FileProcessing f = new FileProcessing(file, mw, true, true);
        f.saveCATFile();
        mw.addRecentCat(file);
      }
    }
    else
    {
      FileDialog c = new FileDialog(mw, "Save Category File (CGL)", FileDialog.SAVE);
      c.setVisible(true);
      String file = c.getFile();
      if (file != null)
      {
        file = c.getDirectory() + c.getFile();
        FileProcessing f = new FileProcessing(file, mw, true, true);
        f.saveCGLFile();
        mw.addRecentCat(file);
      }
    }
    //Close Save Dialog Window
    dispose();
  }

  void cancelButton_actionPerformed(ActionEvent e)
  //Action Listener for Cancel Button
  {
    //Close Save Dialog Window
    dispose();
  }
}