// File:    BezierMenu.java

import java.awt.*;

/** A simple menu that lets the user choose between a few modes of
    operation. **/

public class BezierMenu extends Panel {

  protected State state;
  
  protected TextField samplesField;

  public BezierMenu(State state) {
    this.state = state;
    setLayout(new FlowLayout(FlowLayout.LEFT));
    addButtons();
  }

  protected void addButtons() {
    Button newButton = new Button("New");
    add(newButton);
    //Button saveButton = new Button("Save");
    //add(saveButton);
    //Button clearButton = new Button("Clear");
    //add(clearButton);
    Button previewButton = new Button("Toggle preview");
    add(previewButton);
    Label samplesLabel = new Label("Samples:");
    add(samplesLabel);
    TextField samplesField = new TextField("100",5);
    this.samplesField = samplesField;
    add(samplesField);
    Button updateButton = new Button("Update");
    add(updateButton);
  }

  public boolean action(Event e, Object o) {
    String s = (String) o;
    if (e.target == samplesField) {
      return true; // So it can't be used as a "command line"... :)
    }
    if (s.equals("New")) {
      state.setState(State.CREATING);
    }
    //else if (s.equals("Save")) {
      // Generate PostScript file...
    //}
    else if (s.equals("Update")) {
      try {
   state.setSamples(Integer.parseInt(samplesField.getText()));
      }
      catch (NumberFormatException nfe) {
   state.setSamples(100);
      }
      
    }
    else if (s.equals("Toggle preview")) {
      state.togglePreview();
    }
    return true;
  }

}