| /* ==================================================================== |
| 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.hslf.usermodel; |
| |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Path2D; |
| import java.awt.geom.PathIterator; |
| import java.awt.geom.Point2D; |
| import java.awt.geom.Rectangle2D; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.ddf.AbstractEscherOptRecord; |
| import org.apache.poi.ddf.EscherArrayProperty; |
| import org.apache.poi.ddf.EscherContainerRecord; |
| import org.apache.poi.ddf.EscherPropertyTypes; |
| import org.apache.poi.ddf.EscherSimpleProperty; |
| import org.apache.poi.sl.usermodel.FreeformShape; |
| import org.apache.poi.sl.usermodel.ShapeContainer; |
| import org.apache.poi.sl.usermodel.ShapeType; |
| import org.apache.poi.util.LittleEndian; |
| import org.apache.poi.util.Units; |
| |
| import static org.apache.logging.log4j.util.Unbox.box; |
| |
| /** |
| * A "Freeform" shape. |
| * |
| * <p> |
| * Shapes drawn with the "Freeform" tool have cubic bezier curve segments in the smooth sections |
| * and straight-line segments in the straight sections. This object closely corresponds to <code>java.awt.geom.GeneralPath</code>. |
| * </p> |
| */ |
| public final class HSLFFreeformShape extends HSLFAutoShape implements FreeformShape<HSLFShape,HSLFTextParagraph> { |
| private static final Logger LOG = LogManager.getLogger(HSLFFreeformShape.class); |
| |
| |
| enum ShapePath { |
| LINES(0), |
| LINES_CLOSED(1), |
| CURVES(2), |
| CURVES_CLOSED(3), |
| COMPLEX(4); |
| |
| private final int flag; |
| ShapePath(int flag) { |
| this.flag = flag; |
| } |
| public int getFlag() { |
| return flag; |
| } |
| static ShapePath valueOf(int flag) { |
| for (ShapePath v : values()) { |
| if (v.flag == flag) { |
| return v; |
| } |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * Create a Freeform object and initialize it from the supplied Record container. |
| * |
| * @param escherRecord <code>EscherSpContainer</code> container which holds information about this shape |
| * @param parent the parent of the shape |
| */ |
| protected HSLFFreeformShape(EscherContainerRecord escherRecord, ShapeContainer<HSLFShape,HSLFTextParagraph> parent){ |
| super(escherRecord, parent); |
| |
| } |
| |
| /** |
| * Create a new Freeform. This constructor is used when a new shape is created. |
| * |
| * @param parent the parent of this Shape. For example, if this text box is a cell |
| * in a table then the parent is Table. |
| */ |
| public HSLFFreeformShape(ShapeContainer<HSLFShape,HSLFTextParagraph> parent){ |
| super((EscherContainerRecord)null, parent); |
| createSpContainer(ShapeType.NOT_PRIMITIVE, parent instanceof HSLFGroupShape); |
| } |
| |
| /** |
| * Create a new Freeform. This constructor is used when a new shape is created. |
| * |
| */ |
| public HSLFFreeformShape(){ |
| this(null); |
| } |
| |
| @Override |
| public int setPath(Path2D path) { |
| Rectangle2D bounds = path.getBounds2D(); |
| PathIterator it = path.getPathIterator(null); |
| |
| List<byte[]> segInfo = new ArrayList<>(); |
| List<Point2D.Double> pntInfo = new ArrayList<>(); |
| boolean isClosed = false; |
| int numPoints = 0; |
| while (!it.isDone()) { |
| double[] vals = new double[6]; |
| int type = it.currentSegment(vals); |
| switch (type) { |
| case PathIterator.SEG_MOVETO: |
| pntInfo.add(new Point2D.Double(vals[0], vals[1])); |
| segInfo.add(SEGMENTINFO_MOVETO); |
| numPoints++; |
| break; |
| case PathIterator.SEG_LINETO: |
| pntInfo.add(new Point2D.Double(vals[0], vals[1])); |
| segInfo.add(SEGMENTINFO_LINETO); |
| segInfo.add(SEGMENTINFO_ESCAPE); |
| numPoints++; |
| break; |
| case PathIterator.SEG_CUBICTO: |
| pntInfo.add(new Point2D.Double(vals[0], vals[1])); |
| pntInfo.add(new Point2D.Double(vals[2], vals[3])); |
| pntInfo.add(new Point2D.Double(vals[4], vals[5])); |
| segInfo.add(SEGMENTINFO_CUBICTO); |
| segInfo.add(SEGMENTINFO_ESCAPE2); |
| numPoints++; |
| break; |
| case PathIterator.SEG_QUADTO: |
| //TODO: figure out how to convert SEG_QUADTO into SEG_CUBICTO |
| LOG.atWarn().log("SEG_QUADTO is not supported"); |
| break; |
| case PathIterator.SEG_CLOSE: |
| pntInfo.add(pntInfo.get(0)); |
| segInfo.add(SEGMENTINFO_LINETO); |
| segInfo.add(SEGMENTINFO_ESCAPE); |
| segInfo.add(SEGMENTINFO_LINETO); |
| segInfo.add(SEGMENTINFO_CLOSE); |
| isClosed = true; |
| numPoints++; |
| break; |
| default: |
| LOG.atWarn().log("Ignoring invalid segment type {}", box(type)); |
| break; |
| } |
| |
| it.next(); |
| } |
| if(!isClosed) { |
| segInfo.add(SEGMENTINFO_LINETO); |
| } |
| segInfo.add(SEGMENTINFO_END); |
| |
| AbstractEscherOptRecord opt = getEscherOptRecord(); |
| opt.addEscherProperty(new EscherSimpleProperty(EscherPropertyTypes.GEOMETRY__SHAPEPATH, 0x4)); |
| |
| EscherArrayProperty verticesProp = new EscherArrayProperty(EscherPropertyTypes.GEOMETRY__VERTICES, true, 0); |
| verticesProp.setNumberOfElementsInArray(pntInfo.size()); |
| verticesProp.setNumberOfElementsInMemory(pntInfo.size()); |
| verticesProp.setSizeOfElements(8); |
| for (int i = 0; i < pntInfo.size(); i++) { |
| Point2D.Double pnt = pntInfo.get(i); |
| byte[] data = new byte[8]; |
| LittleEndian.putInt(data, 0, Units.pointsToMaster(pnt.getX() - bounds.getX())); |
| LittleEndian.putInt(data, 4, Units.pointsToMaster(pnt.getY() - bounds.getY())); |
| verticesProp.setElement(i, data); |
| } |
| opt.addEscherProperty(verticesProp); |
| |
| EscherArrayProperty segmentsProp = new EscherArrayProperty(EscherPropertyTypes.GEOMETRY__SEGMENTINFO, true, 0); |
| segmentsProp.setNumberOfElementsInArray(segInfo.size()); |
| segmentsProp.setNumberOfElementsInMemory(segInfo.size()); |
| segmentsProp.setSizeOfElements(0x2); |
| for (int i = 0; i < segInfo.size(); i++) { |
| byte[] seg = segInfo.get(i); |
| segmentsProp.setElement(i, seg); |
| } |
| opt.addEscherProperty(segmentsProp); |
| |
| opt.addEscherProperty(new EscherSimpleProperty(EscherPropertyTypes.GEOMETRY__RIGHT, Units.pointsToMaster(bounds.getWidth()))); |
| opt.addEscherProperty(new EscherSimpleProperty(EscherPropertyTypes.GEOMETRY__BOTTOM, Units.pointsToMaster(bounds.getHeight()))); |
| |
| opt.sortProperties(); |
| |
| setAnchor(bounds); |
| |
| return numPoints; |
| } |
| |
| @Override |
| public Path2D getPath(){ |
| Path2D path2D = new Path2D.Double(); |
| getGeometry(path2D); |
| |
| Rectangle2D bounds = path2D.getBounds2D(); |
| Rectangle2D anchor = getAnchor(); |
| AffineTransform at = new AffineTransform(); |
| at.translate(anchor.getX(), anchor.getY()); |
| at.scale( |
| anchor.getWidth()/bounds.getWidth(), |
| anchor.getHeight()/bounds.getHeight() |
| ); |
| |
| path2D.transform(at); |
| |
| |
| return path2D; |
| } |
| |
| |
| } |