How to use

isEnabled

method

in

org.jhotdraw.draw.DrawingView

  @Override
  public void updateCursor(DrawingView view, Point p) {
    if (view.isEnabled()) {
      view.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
    } else {
      view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
    }
  }
}

  @Override
  public void updateCursor(DrawingView view, Point p) {
    if (view.isEnabled()) {
      view.setCursor(Cursor.getPredefinedCursor(isEditing() ? Cursor.DEFAULT_CURSOR : Cursor.CROSSHAIR_CURSOR));
    } else {
      view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
    }
  }
}

@Override
public void updateCursor(DrawingView view, Point p) {
  if (view.isEnabled()) {
    view.setCursor(Cursor.getPredefinedCursor(isEditing() ? Cursor.DEFAULT_CURSOR : Cursor.CROSSHAIR_CURSOR));
  } else {
    view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
  }
}

@Override
public void keyTyped(KeyEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    tracker.keyTyped(evt);
  }
}

@Override
public void mouseClicked(MouseEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    tracker.mouseClicked(evt);
  }
}

@Override
public void mouseDragged(MouseEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    tracker.mouseDragged(evt);
  }
}

@Override
public void keyReleased(KeyEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    tracker.keyReleased(evt);
  }
}

@Override
public void mouseReleased(MouseEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    tracker.mouseReleased(evt);
  }
}

@Override
public void keyPressed(KeyEvent e) {
  if (getView() != null && getView().isEnabled()) {
    tracker.keyPressed(e);
  }
}

  @Override
  protected void updateEnabledState() {
    if (getView() != null) {
      setEnabled(getView().isEnabled());
    } else {
      setEnabled(false);
    }
  }
}

/** Updates the enabled state of this action to reflect the enabled state
 * of the active {@code DrawingView}. If no drawing view is active, this
 * action is disabled.
 */
protected void updateEnabledState() {
  if (getView() != null) {
    setEnabled(getView().isEnabled());
  } else {
    setEnabled(false);
  }
}

/** Updates the enabled state of this action to reflect the enabled state
 * of the active {@code DrawingView}. If no drawing view is active, this
 * action is disabled.
 */
protected void updateEnabledState() {
  if (getView() != null) {
    setEnabled(getView().isEnabled()
        && getView().getSelectionCount() > 0);
  } else {
    setEnabled(false);
  }
}

@Override
public void updateEnabledState() {
  if (getView() != null) {
    setEnabled(getView().isEnabled() &&
        getView().getSelectionCount() > 1
        );
  } else {
    setEnabled(false);
  }
}
@Override

  protected boolean maybeSwitchTool(final MouseEvent event) {
    if (activeTool != null && activeTool.isConstructing()) return false;
    anchor = new Point(event.getX(), event.getY());
    JHotDrawTool tool = creationTool;
    final DrawingView view = getView();
    if (view != null && view.isEnabled()) {
      if (view.findHandle(anchor) != null ||
        (view.findFigure(anchor) != null && view.findFigure(anchor)
          .isSelectable()))
      {
        tool = selectionTool;
      }
    }

    if (activeTool != tool) {
      if (activeTool != null) {
        activeTool.deactivate(getEditor());
      }
      if (tool != null) {
        tool.activate(getEditor());
        if (!isActive()) {
          tool.deactivate(getEditor());
        }
      }
      activeTool = tool;
      return true;
    }
    return false;
  }
}

JHotDrawTool tool = creationTool;
final DrawingView view = getView();
if (view != null && view.isEnabled()) {
  if (view.findHandle(anchor) != null ||
    (view.findFigure(anchor) != null && view.findFigure(anchor)

public void updateCursor(DrawingView view, Point p) {
  if (view.isEnabled()) {
    Handle handle = view.findHandle(p);
    if (handle != null) {
      view.setCursor(handle.getCursor());
    } else {
      Figure figure = view.findFigure(p);
      Point2D.Double point = view.viewToDrawing(p);
      Drawing drawing = view.getDrawing();
      while (figure != null && !figure.isSelectable()) {
        figure = drawing.findFigureBehind(point, figure);
      }
      if (figure != null) {
        view.setCursor(figure.getCursor(view.viewToDrawing(p)));
      } else {
        view.setCursor(Cursor.getDefaultCursor());
      }
    }
  } else {
    view.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
  }
}

@Override
public void mousePressed(MouseEvent evt) {
  if (getView() != null && getView().isEnabled()) {
    super.mousePressed(evt);
    DrawingView view = getView();