3dtext.java

java写的文字3d显示。自己看看吧^-^

    boolean state;
    if (src == headlightMenuItem) {
      state = headlightMenuItem.getState();
      headlight.setEnable(state);
    } else if (src == walkMenuItem)
      setNavigationType(Walk);
    else if (src == examineMenuItem)
      setNavigationType(Examine);
  }

  /**
   * Handles a window closing event notifying the application that the user
   * has chosen to close the application without selecting the "Exit" menu
   * item.
   * 
   * @param event
   *            a WindowEvent indicating the window is closing
   */
  public void windowClosing(WindowEvent event) {
    quit();
  }

  public void windowClosed(WindowEvent event) {
  }

  public void windowOpened(WindowEvent event) {
  }

  public void windowIconified(WindowEvent event) {
  }

  public void windowDeiconified(WindowEvent event) {
  }

  public void windowActivated(WindowEvent event) {
  }

  public void windowDeactivated(WindowEvent event) {
  }

  //  Well known colors, positions, and directions
  public final static Color3f White = new Color3f(1.0f, 1.0f, 1.0f);

  public final static Color3f Gray = new Color3f(0.7f, 0.7f, 0.7f);

  public final static Color3f DarkGray = new Color3f(0.2f, 0.2f, 0.2f);

  public final static Color3f Black = new Color3f(0.0f, 0.0f, 0.0f);

  public final static Color3f Red = new Color3f(1.0f, 0.0f, 0.0f);

  public final static Color3f DarkRed = new Color3f(0.3f, 0.0f, 0.0f);

  public final static Color3f Yellow = new Color3f(1.0f, 1.0f, 0.0f);

  public final static Color3f DarkYellow = new Color3f(0.3f, 0.3f, 0.0f);

  public final static Color3f Green = new Color3f(0.0f, 1.0f, 0.0f);

  public final static Color3f DarkGreen = new Color3f(0.0f, 0.3f, 0.0f);

  public final static Color3f Cyan = new Color3f(0.0f, 1.0f, 1.0f);

  public final static Color3f Blue = new Color3f(0.0f, 0.0f, 1.0f);

  public final static Color3f DarkBlue = new Color3f(0.0f, 0.0f, 0.3f);

  public final static Color3f Magenta = new Color3f(1.0f, 0.0f, 1.0f);

  public final static Vector3f PosX = new Vector3f(1.0f, 0.0f, 0.0f);

  public final static Vector3f NegX = new Vector3f(-1.0f, 0.0f, 0.0f);

  public final static Vector3f PosY = new Vector3f(0.0f, 1.0f, 0.0f);

  public final static Vector3f NegY = new Vector3f(0.0f, -1.0f, 0.0f);

  public final static Vector3f PosZ = new Vector3f(0.0f, 0.0f, 1.0f);

  public final static Vector3f NegZ = new Vector3f(0.0f, 0.0f, -1.0f);

  public final static Point3f Origin = new Point3f(0.0f, 0.0f, 0.0f);

  public final static Point3f PlusX = new Point3f(0.75f, 0.0f, 0.0f);

  public final static Point3f MinusX = new Point3f(-0.75f, 0.0f, 0.0f);

  public final static Point3f PlusY = new Point3f(0.0f, 0.75f, 0.0f);

  public final static Point3f MinusY = new Point3f(0.0f, -0.75f, 0.0f);

  public final static Point3f PlusZ = new Point3f(0.0f, 0.0f, 0.75f);

  public final static Point3f MinusZ = new Point3f(0.0f, 0.0f, -0.75f);
}

//
//INTERFACE
//CheckboxMenuListener - listen for checkbox change events
//
//DESCRIPTION
//The checkboxChanged method is called by users of this class
//to notify the listener when a checkbox choice has changed on
//a CheckboxMenu class menu.
//

interface CheckboxMenuListener extends EventListener {
  public void checkboxChanged(CheckboxMenu menu, int check);
}

/**
 * ExamineViewerBehavior
 * 
 * @version 1.0, 98/04/16
 */

/**
 * Wakeup on mouse button presses, releases, and mouse movements and generate
 * transforms in an "examination style" that enables the user to rotate,
 * translation, and zoom an object as if it is held at arm's length. Such an
 * examination style is similar to the "Examine" navigation type used by VRML
 * browsers.
 * 
 * The behavior maps mouse drags to different transforms depending upon the
 * mosue button held down:
 * 
 * Button 1 (left) Horizontal movement --> Y-axis rotation Vertical movement -->
 * X-axis rotation
 * 
 * Button 2 (middle) Horizontal movement --> nothing Vertical movement -->
 * Z-axis translation
 * 
 * Button 3 (right) Horizontal movement --> X-axis translation Vertical movement
 * --> Y-axis translation
 * 
 * To support systems with 2 or 1 mouse buttons, the following alternate
 * mappings are supported while dragging with any mouse button held down and
 * zero or more keyboard modifiers held down:
 * 
 * No modifiers = Button 1 ALT = Button 2 Meta = Button 3 Control = Button 3
 * 
 * The behavior automatically modifies a TransformGroup provided to the
 * constructor. The TransformGroup's transform can be set at any time by the
 * application or other behaviors to cause the examine rotation and translation
 * to be reset.
 */

// This class is inspired by the MouseBehavior, MouseRotate,
// MouseTranslate, and MouseZoom utility behaviors provided with
// Java 3D. This class differs from those utilities in that it:
//
//    (a) encapsulates all three behaviors into one in order to
//        enforce a specific "Examine" symantic
//
//    (b) supports set/get of the rotation and translation factors
//        that control the speed of movement.
//
//    (c) supports the "Control" modifier as an alternative to the
//        "Meta" modifier not present on PC, Mac, and most non-Sun
//        keyboards. This makes button3 behavior usable on PCs,
//        Macs, and other systems with fewer than 3 mouse buttons.

class ExamineViewerBehavior extends ViewerBehavior {
  // Previous cursor location
  protected int previousX = 0;

  protected int previousY = 0;

  // Saved standard cursor
  protected Cursor savedCursor = null;

  /**
   * Construct an examine behavior that listens to mouse movement and button
   * presses to generate rotation and translation transforms written into a
   * transform group given later with the setTransformGroup( ) method.
   */
  public ExamineViewerBehavior() {
    super();
  }

  /**
   * Construct an examine behavior that listens to mouse movement and button
   * presses to generate rotation and translation transforms written into a
   * transform group given later with the setTransformGroup( ) method.
   * 
   * @param parent
   *            The AWT Component that contains the area generating mouse
   *            events.
   */
  public ExamineViewerBehavior(Component parent) {
    super(parent);
  }

  /**
   * Construct an examine behavior that listens to mouse movement and button
   * presses to generate rotation and translation transforms written into the
   * given transform group.
   * 
   * @param transformGroup
   *            The transform group to be modified by the behavior.
   */
  public ExamineViewerBehavior(TransformGroup transformGroup) {
    super();
    subjectTransformGroup = transformGroup;
  }

  /**
   * Construct an examine behavior that listens to mouse movement and button
   * presses to generate rotation and translation transforms written into the
   * given transform group.
   * 
   * @param transformGroup
   *            The transform group to be modified by the behavior.
   * @param parent
   *            The AWT Component that contains the area generating mouse
   *            events.
   */
  public ExamineViewerBehavior(TransformGroup transformGroup, Component parent) {
    super(parent);
    subjectTransformGroup = transformGroup;
  }

  /**
   * Respond to a button1 event (press, release, or drag).
   * 
   * @param mouseEvent
   *            A MouseEvent to respond to.
   */
  public void onButton1(MouseEvent mev) {
    if (subjectTransformGroup == null)
      return;

    int x = mev.getX();
    int y = mev.getY();

    if (mev.getID() == MouseEvent.MOUSE_PRESSED) {
      // Mouse button pressed: record position
      previousX = x;
      previousY = y;

      // Change to a "move" cursor
      if (parentComponent != null) {
        savedCursor = parentComponent.getCursor();
        parentComponent.setCursor(Cursor
            .getPredefinedCursor(Cursor.HAND_CURSOR));
      }
      return;
    }
    if (mev.getID() == MouseEvent.MOUSE_RELEASED) {
      // Mouse button released: do nothing

      // Switch the cursor back
      if (parentComponent != null)
        parentComponent.setCursor(savedCursor);
      return;
    }

    //
    // Mouse moved while button down: create a rotation
    //
    // Compute the delta in X and Y from the previous
    // position. Use the delta to compute rotation
    // angles with the mapping:
    //
    //   positive X mouse delta --> positive Y-axis rotation
    //   positive Y mouse delta --> positive X-axis rotation
    //
    // where positive X mouse movement is to the right, and
    // positive Y mouse movement is **down** the screen.
    //
    int deltaX = x - previousX;
    int deltaY = y - previousY;

    if (deltaX > UNUSUAL_XDELTA || deltaX < -UNUSUAL_XDELTA
        || deltaY > UNUSUAL_YDELTA || deltaY < -UNUSUAL_YDELTA) {
      // Deltas are too huge to be believable. Probably a glitch.
      // Don't record the new XY location, or do anything.
      return;
    }

    double xRotationAngle = deltaY * XRotationFactor;
    double yRotationAngle = deltaX * YRotationFactor;

    //
    // Build transforms
    //
    transform1.rotX(xRotationAngle);
    transform2.rotY(yRotationAngle);

    // Get and save the current transform matrix
    subjectTransformGroup.getTransform(currentTransform);
    currentTransform.get(matrix);
    translate.set(matrix.m03, matrix.m13, matrix.m23);

    // Translate to the origin, rotate, then translate back
    currentTransform.setTranslation(origin);
    currentTransform.mul(transform1, currentTransform);
    currentTransform.mul(transform2, currentTransform);
    currentTransform.setTranslation(translate);

    // Update the transform group
    subjectTransformGroup.setTransform(currentTransform);

    previousX = x;
    previousY = y;
  }

  /**
   * Respond to a button2 event (press, release, or drag).
   * 
   * @param mouseEvent
   *            A MouseEvent to respond to.
   */
  public void onButton2(MouseEvent mev) {
    if (subjectTransformGroup == null)
      return;

    int x = mev.getX();
    int y = mev.getY();

    if (mev.getID() == MouseEvent.MOUSE_PRESSED) {
      // Mouse button pressed: record position
      previousX = x;
      previousY = y;

      // Change to a "move" cursor
      if (parentComponent != null) {
        savedCursor = parentComponent.getCursor();
        parentComponent.setCursor(Cursor
            .getPredefinedCursor(Cursor.MOVE_CURSOR));
      }
      return;
    }
    if (mev.getID() == MouseEvent.MOUSE_RELEASED) {
      // Mouse button released: do nothing

      // Switch the cursor back
      if (parentComponent != null)
        parentComponent.setCursor(savedCursor);
      return;
    }

    //
    // Mouse moved while button down: create a translation
    //
    // Compute the delta in Y from the previous
    // position. Use the delta to compute translation
    // distances with the mapping:
    //
    //   positive Y mouse delta --> positive Y-axis translation
    //
    // where positive X mouse movement is to the right, and
    // positive Y mouse movement is **down** the screen.
    //
    int deltaY = y - previousY;

    if (deltaY > UNUSUAL_YDELTA || deltaY < -UNUSUAL_YDELTA) {
      // Deltas are too huge to be believable. Probably a glitch.
      // Don't record the new XY location, or do anything.
      return;
    }

    double zTranslationDistance = deltaY * ZTranslationFactor;

    //
    // Build transforms
    //
    translate.set(0.0, 0.0, zTranslationDistance);
    transform1.set(translate);

    // Get and save the current transform
    subjectTransformGroup.getTransform(currentTransform);

    // Translate as needed
    currentTransform.mul(transform1, currentTransform);

    // Update the transform group
    subjectTransformGroup.setTransform(currentTransform);

    previousX = x;
    previousY = y;
  }

  /**
   * Respond to a button3 event (press, release, or drag).
   * 
   * @param mouseEvent
   *            A MouseEvent to respond to.
   */
  public void onButton3(MouseEvent mev) {
    if (subjectTransformGroup == null)
      return;

    int x = mev.getX();
    int y = mev.getY();

    if (mev.getID() == MouseEvent.MOUSE_PRESSED) {
      // Mouse button pressed: record position
      previousX = x;
      previousY = y;

      // Change to a "move" cursor
      if (parentComponent != null) {
        savedCursor = parentComponent.getCursor();
        parentComponent.setCursor(Cursor
            .getPredefinedCursor(Cursor.MOVE_CURSOR));
      }
      return;