// File:    State.java

import java.awt.*;

/** Stores the state of the application and displays it on the status
    line. **/

public class State {

  // Hack solution for repainting when toggling preview and clearing
  // the drawing...
  protected BezierCanvas bezierCanvas;

  public static final int PASSIVE  = 0;
  public static final int CREATING = 1;
  public static final int EDITING  = 2;

  protected String[] messages =
  {"Press \"New\" to add a curve. "
   +"Drag the control points to edit the curves.",
  "Click to create control points.",
  "Move point to desired position."};

  protected int state = PASSIVE;

  protected int samples = 100;

  protected boolean preview = false;

  protected StatusLine status;

  public State(StatusLine status) {
    this.status = status;
    setState(PASSIVE);
  }

  public void setState(int state) {
    this.state = state;
    status.setText(messages[state]);
  }

  public int getState() {
    return state;
  }

  public void setSamples(int samples) {
    this.samples = samples;
    bezierCanvas.repaint();
  }

  public int getSamples() {
    return this.samples;
  }

  public void togglePreview() {
    preview = !preview;
    bezierCanvas.repaint();
  }

  public boolean isPreview() {
    return preview;
  }

  public void setCanvas(BezierCanvas bezierCanvas) {
    this.bezierCanvas = bezierCanvas;
  }

}