| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==================================================================== */ |
| |
| package org.apache.poi.xdgf.usermodel.shape; |
| |
| import org.apache.poi.xdgf.usermodel.XDGFShape; |
| |
| /** |
| * This acceptor only allows traversal to shapes that have useful data |
| * associated with them, and tries to elide details that aren't useful when |
| * analyzing the content of a document. |
| * |
| * Useful is subjective of course, and is defined as any of: |
| * |
| * - Has non-empty text - Is a 1d shape, such as a line - User specified shapes |
| * - The outline of stencil objects - TODO |
| */ |
| public class ShapeDataAcceptor implements ShapeVisitorAcceptor { |
| |
| @Override |
| public boolean accept(XDGFShape shape) { |
| |
| if (shape.isDeleted()) |
| return false; |
| |
| // text is interesting |
| if (shape.hasText() && shape.getTextAsString().length() != 0) |
| return true; |
| |
| // 1d shapes are interesting, they create connections |
| if (shape.isShape1D()) |
| return true; |
| |
| // User specified shapes are interesting |
| if (!shape.hasMaster() && !shape.hasMasterShape()) |
| return true; |
| |
| if (shape.hasMaster() && !shape.hasMasterShape()) |
| return true; |
| |
| // include stencil content, but try to elide stencil interiors |
| // if (shape.getXmlObject().isSetMaster()) |
| // return true; |
| |
| if (shape.hasMasterShape() && shape.getMasterShape().isTopmost()) |
| return true; |
| |
| return false; |
| } |
| |
| } |