How to use

remove

method

in

org.jhotdraw.draw.Drawing

@Override
public void undo() throws CannotUndoException {
  super.undo();
  drawing.remove(c);
}

  @Override
  public void redo() throws CannotRedoException {
    super.redo();
    for (int i = 0; i
        < deletedFigureIndices.length; i++) {
      drawing.remove(deletedFigures.get(i));
    }
  }
});

@Override
public void undo() throws CannotUndoException {
  super.undo();
  addedDrawing.remove(addedFigure);
}

  @Override
  protected void failed(Throwable t) {
    JOptionPane.showMessageDialog(getView().getComponent(),
        t.getMessage(),
        null,
        JOptionPane.ERROR_MESSAGE);
    getDrawing().remove(createdFigure);
    fireToolDone();
  }
};

@Override
public void undo() throws CannotUndoException {
  super.undo();
  addedDrawing.remove(addedFigure);
}

@Override
public void undo() throws CannotUndoException {
  super.undo();
  addedDrawing.remove(addedFigure);
}

@Override
protected void failed(Throwable t) {
  JOptionPane.showMessageDialog(getView().getComponent(),
      t.getMessage(),
      null,
      JOptionPane.ERROR_MESSAGE);
  getDrawing().remove(createdFigure);
  fireToolDone();
}

@Override
public void deactivate(DrawingEditor editor) {
  if (createdFigure != null) {
    getDrawing().remove(createdFigure);
    createdFigure = null;
  }
  targetFigure = null;
  startConnector = endConnector = null;
  super.deactivate(editor);
}

  @Override
  protected void failed(Throwable value) {
    Throwable t = (Throwable) value;
    JOptionPane.showMessageDialog(getView().getComponent(),
        t.getMessage(),
        null,
        JOptionPane.ERROR_MESSAGE);
    getDrawing().remove(createdFigure);
    fireToolDone();
  }
};

  @Override
  public void redo() throws CannotRedoException {
    super.redo();
    for (CompositeFigureEvent evt : new ReversedList<CompositeFigureEvent>(deletionEvents)) {
      drawing.remove(evt.getChildFigure());
    }
  }
});

@Override
@SuppressWarnings("unchecked")
public Collection<Figure> ungroupFigures(DrawingView view, CompositeFigure group) {
  LinkedList<Figure> figures = new LinkedList<Figure>(group.getChildren());
  view.clearSelection();
  group.basicRemoveAllChildren();
  LinkedList<Figure> paths = new LinkedList<Figure>();
  for (Figure f : figures) {
    ODGPathFigure path = new ODGPathFigure();
    path.removeAllChildren();
    for (Map.Entry<AttributeKey, Object> entry : group.getAttributes().entrySet()) {
      path.set(entry.getKey(), entry.getValue());
    }
    path.add(f);
    view.getDrawing().basicAdd(path);
    paths.add(path);
  }
  view.getDrawing().remove(group);
  view.addToSelection(paths);
  return figures;
}

@SuppressWarnings("unchecked")
@Override
public Collection<Figure> ungroupFigures(DrawingView view, CompositeFigure group) {
  LinkedList<Figure> figures = new LinkedList<Figure>(group.getChildren());
  view.clearSelection();
  group.basicRemoveAllChildren();
  LinkedList<Figure> paths = new LinkedList<Figure>();
  for (Figure f : figures) {
    ODGPathFigure path = new ODGPathFigure();
    path.removeAllChildren();
    for (Map.Entry<AttributeKey, Object> entry : group.getAttributes().entrySet()) {
      path.set(entry.getKey(), entry.getValue());
    }
    path.add(f);
    view.getDrawing().basicAdd(path);
    paths.add(path);
  }
  view.getDrawing().remove(group);
  view.addToSelection(paths);
  return figures;
}

public void splitPath(DrawingView view, CompositeFigure group, List<Figure> ungroupedPaths, int[] ungroupedPathsIndices, int[] ungroupedPathsChildCounts) {
  view.clearSelection();
  Iterator<Figure> groupedFigures = new LinkedList<Figure>(group.getChildren()).iterator();
  group.basicRemoveAllChildren();
  view.getDrawing().remove(group);
  SVGPathFigure pathFigure = (SVGPathFigure) group;
  pathFigure.flattenTransform();
  for (int i = 0; i < ungroupedPaths.size(); i++) {
    CompositeFigure path = (CompositeFigure) ungroupedPaths.get(i);
    view.getDrawing().add(ungroupedPathsIndices[i], path);
    path.willChange();
    for (int j = 0; j < ungroupedPathsChildCounts[i]; j++) {
      Figure child = groupedFigures.next();
      child.willChange();
      path.basicAdd(child);
    }
    path.changed();
  }
  view.addToSelection(ungroupedPaths);
}

  public Collection<Figure> ungroupFigures(DrawingView view, CompositeFigure group) {
// XXX - This code is redundant with UngroupAction
    LinkedList<Figure> figures = new LinkedList<Figure>(group.getChildren());
    view.clearSelection();
    group.basicRemoveAllChildren();
    view.getDrawing().basicAddAll(view.getDrawing().indexOf(group), figures);
    view.getDrawing().remove(group);
    view.addToSelection(figures);
    return figures;
  }

private void show(final boolean doShow) {
  final JHotDrawImageCanvas canvas = displayViewer.getCanvas();
  final Drawing drawing = canvas.getDrawing();
  final Figure fig = getFigure();
  if (doShow) {
    if (!drawing.contains(fig)) {
      drawing.add(fig);
    }
  }
  else {
    if (drawing.contains(fig)) {
      drawing.remove(fig);
    }
  }
}

private void show(final boolean doShow) {
  final JHotDrawImageCanvas canvas = displayViewer.getCanvas();
  final Drawing drawing = canvas.getDrawing();
  final Figure fig = getFigure();
  if (doShow) {
    if (!drawing.contains(fig)) {
      drawing.add(fig);
    }
  }
  else {
    if (drawing.contains(fig)) {
      drawing.remove(fig);
    }
  }
}

  @Override protected void finishCreation(BezierFigure createdFigure, DrawingView creationView) {
    if (DEBUG) System.out.println("PathTool.finishCreation "+createdFigure);
    creationView.getDrawing().remove(createdFigure);
    SVGPathFigure createdPath = createPath();
    createdPath.removeAllChildren();
    createdPath.add(createdFigure);
    creationView.getDrawing().add(createdPath);
    creationView.addToSelection(createdPath);
    fireUndoEvent(createdPath, creationView);
  }
}

  @Override
  protected void finishCreation(BezierFigure createdFigure, DrawingView creationView) {
    if (DEBUG) {
      System.out.println("PathTool.finishCreation " + createdFigure);
    }
    creationView.getDrawing().remove(createdFigure);
    SVGPathFigure createdPath = createPath();
    createdPath.removeAllChildren();
    createdPath.add(createdFigure);
    creationView.getDrawing().add(createdPath);
    fireUndoEvent(createdPath, creationView);
    creationView.addToSelection(createdPath);
    if (isToolDoneAfterCreation()) {
      fireToolDone();
    }
  }
}

} else {
  if (createdFigure != null) {
    getDrawing().remove((Figure) getAddedFigure());

view.getDrawing().remove(getConnection());
fireAreaInvalidated(getDrawingArea());