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- /* ====================================================================
- 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.poi.ddf.AbstractEscherOptRecord;
- import org.apache.poi.ddf.EscherArrayProperty;
- import org.apache.poi.ddf.EscherContainerRecord;
- import org.apache.poi.ddf.EscherProperties;
- 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.POILogFactory;
- import org.apache.poi.util.POILogger;
- import org.apache.poi.util.Units;
-
- /**
- * 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 POILogger LOG = POILogFactory.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.log(POILogger.WARN, "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.log(POILogger.WARN, "Ignoring invalid segment type "+type);
- break;
- }
-
- it.next();
- }
- if(!isClosed) {
- segInfo.add(SEGMENTINFO_LINETO);
- }
- segInfo.add(SEGMENTINFO_END);
-
- AbstractEscherOptRecord opt = getEscherOptRecord();
- opt.addEscherProperty(new EscherSimpleProperty(EscherProperties.GEOMETRY__SHAPEPATH, 0x4));
-
- EscherArrayProperty verticesProp = new EscherArrayProperty((short)(EscherProperties.GEOMETRY__VERTICES + 0x4000), false, null);
- 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((short)(EscherProperties.GEOMETRY__SEGMENTINFO + 0x4000), false, null);
- 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(EscherProperties.GEOMETRY__RIGHT, Units.pointsToMaster(bounds.getWidth())));
- opt.addEscherProperty(new EscherSimpleProperty(EscherProperties.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;
- }
-
-
- }
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