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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.xslf.usermodel;
-
- import java.awt.geom.AffineTransform;
- import java.awt.geom.Path2D;
- import java.awt.geom.PathIterator;
- import java.awt.geom.Rectangle2D;
-
- import javax.xml.stream.XMLStreamException;
- import javax.xml.stream.XMLStreamReader;
-
- import org.apache.poi.ooxml.POIXMLTypeLoader;
- import org.apache.poi.sl.draw.geom.CustomGeometry;
- import org.apache.poi.sl.draw.geom.PresetGeometries;
- import org.apache.poi.sl.usermodel.FreeformShape;
- import org.apache.poi.util.Beta;
- import org.apache.poi.util.POILogFactory;
- import org.apache.poi.util.POILogger;
- import org.apache.poi.util.Units;
- import org.apache.xmlbeans.XmlCursor;
- import org.apache.xmlbeans.XmlObject;
- import org.apache.xmlbeans.XmlOptions;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTAdjPoint2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTCustomGeometry2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTGeomRect;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2D;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2DClose;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2DCubicBezierTo;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2DLineTo;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2DMoveTo;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTPath2DQuadBezierTo;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeProperties;
- import org.openxmlformats.schemas.drawingml.x2006.main.CTTransform2D;
- import org.openxmlformats.schemas.presentationml.x2006.main.CTShape;
- import org.openxmlformats.schemas.presentationml.x2006.main.CTShapeNonVisual;
-
- /**
- * Represents a custom geometric shape.
- * This shape will consist of a series of lines and curves described within a creation path.
- */
- @Beta
- public class XSLFFreeformShape extends XSLFAutoShape
- implements FreeformShape<XSLFShape,XSLFTextParagraph> {
-
- private static final POILogger LOG = POILogFactory.getLogger(XSLFFreeformShape.class);
-
- /*package*/ XSLFFreeformShape(CTShape shape, XSLFSheet sheet) {
- super(shape, sheet);
- }
-
- @Override
- public int setPath(final Path2D path) {
- final CTPath2D ctPath = CTPath2D.Factory.newInstance();
-
- final Rectangle2D bounds = path.getBounds2D();
- final int x0 = Units.toEMU(bounds.getX());
- final int y0 = Units.toEMU(bounds.getY());
- final PathIterator it = path.getPathIterator(new AffineTransform());
- int numPoints = 0;
- ctPath.setH(Units.toEMU(bounds.getHeight()));
- ctPath.setW(Units.toEMU(bounds.getWidth()));
-
- final double[] vals = new double[6];
- while (!it.isDone()) {
- final int type = it.currentSegment(vals);
- final CTAdjPoint2D[] points;
- switch (type) {
- case PathIterator.SEG_MOVETO:
- points = addMoveTo(ctPath);
- break;
- case PathIterator.SEG_LINETO:
- points = addLineTo(ctPath);
- break;
- case PathIterator.SEG_QUADTO:
- points = addQuadBezierTo(ctPath);
- break;
- case PathIterator.SEG_CUBICTO:
- points = addCubicBezierTo(ctPath);
- break;
- case PathIterator.SEG_CLOSE:
- points = addClosePath(ctPath);
- break;
- default: {
- throw new IllegalStateException("Unrecognized path segment type: " + type);
- }
- }
-
- int i=0;
- for (final CTAdjPoint2D point : points) {
- point.setX(Units.toEMU(vals[i++])-x0);
- point.setY(Units.toEMU(vals[i++])-y0);
- }
-
- numPoints += Math.max(points.length, 1);
- it.next();
- }
-
- XmlObject xo = getShapeProperties();
- if (!(xo instanceof CTShapeProperties)) {
- return -1;
- }
-
- ((CTShapeProperties)xo).getCustGeom().getPathLst().setPathArray(new CTPath2D[]{ctPath});
- setAnchor(bounds);
- return numPoints;
- }
-
- /**
- * @return definition of the shape geometry
- */
- @Override
- public CustomGeometry getGeometry() {
- final XmlObject xo = getShapeProperties();
- if (!(xo instanceof CTShapeProperties)) {
- return null;
- }
-
- XmlOptions xop = new XmlOptions(POIXMLTypeLoader.DEFAULT_XML_OPTIONS);
- xop.setSaveOuter();
-
- XMLStreamReader staxReader = ((CTShapeProperties)xo).getCustGeom().newXMLStreamReader(xop);
- CustomGeometry custGeo = PresetGeometries.convertCustomGeometry(staxReader);
- try {
- staxReader.close();
- } catch (XMLStreamException e) {
- LOG.log(POILogger.WARN,
- "An error occurred while closing a Custom Geometry XML Stream Reader: " + e.getMessage());
- }
-
- return custGeo;
- }
-
- @Override
- public Path2D.Double getPath() {
- final Path2D.Double path = new Path2D.Double();
-
- final XmlObject xo = getShapeProperties();
- if (!(xo instanceof CTShapeProperties)) {
- return null;
- }
-
- final CTCustomGeometry2D geom = ((CTShapeProperties)xo).getCustGeom();
- //noinspection deprecation
- for(CTPath2D spPath : geom.getPathLst().getPathArray()){
- XmlCursor cursor = spPath.newCursor();
- try {
- if (cursor.toFirstChild()) {
- do {
- final XmlObject ch = cursor.getObject();
- if (ch instanceof CTPath2DMoveTo) {
- addMoveTo(path, (CTPath2DMoveTo)ch);
- } else if (ch instanceof CTPath2DLineTo) {
- addLineTo(path, (CTPath2DLineTo)ch);
- } else if (ch instanceof CTPath2DQuadBezierTo) {
- addQuadBezierTo(path, (CTPath2DQuadBezierTo)ch);
- } else if (ch instanceof CTPath2DCubicBezierTo) {
- addCubicBezierTo(path, (CTPath2DCubicBezierTo)ch);
- } else if (ch instanceof CTPath2DClose) {
- addClosePath(path);
- } else {
- LOG.log(POILogger.WARN, "can't handle path of type "+xo.getClass());
- }
- } while (cursor.toNextSibling());
- }
- } finally {
- cursor.dispose();
- }
- }
-
- // the created path starts at (x=0, y=0).
- // this used to scale each path element to the path bounding box,
- // but now the dimensions/relations are kept as-is
- final AffineTransform at = new AffineTransform();
-
- final CTTransform2D xfrm = getXfrm(false);
- final Rectangle2D xfrm2d = new Rectangle2D.Double
- (xfrm.getOff().getX(), xfrm.getOff().getY(), xfrm.getExt().getCx(), xfrm.getExt().getCy());
-
- final Rectangle2D bounds = getAnchor();
- at.translate(bounds.getX()+bounds.getCenterX(), bounds.getY()+bounds.getCenterY());
- at.scale(1./Units.EMU_PER_POINT, 1./Units.EMU_PER_POINT);
- at.translate(-xfrm2d.getCenterX(), -xfrm2d.getCenterY());
- return new Path2D.Double(at.createTransformedShape(path));
- }
-
- private static CTAdjPoint2D[] addMoveTo(final CTPath2D path) {
- return new CTAdjPoint2D[]{path.addNewMoveTo().addNewPt()};
- }
-
- private static void addMoveTo(final Path2D path, final CTPath2DMoveTo xo) {
- final CTAdjPoint2D pt = xo.getPt();
- path.moveTo((Long)pt.getX(), (Long)pt.getY());
- }
-
- private static CTAdjPoint2D[] addLineTo(final CTPath2D path) {
- return new CTAdjPoint2D[]{path.addNewLnTo().addNewPt()};
- }
-
- private static void addLineTo(final Path2D path, final CTPath2DLineTo xo) {
- final CTAdjPoint2D pt = xo.getPt();
- path.lineTo((Long)pt.getX(), (Long)pt.getY());
- }
-
- private static CTAdjPoint2D[] addQuadBezierTo(final CTPath2D path) {
- final CTPath2DQuadBezierTo bez = path.addNewQuadBezTo();
- return new CTAdjPoint2D[]{ bez.addNewPt(), bez.addNewPt() };
- }
-
- private static void addQuadBezierTo(final Path2D path, final CTPath2DQuadBezierTo xo) {
- final CTAdjPoint2D pt1 = xo.getPtArray(0);
- final CTAdjPoint2D pt2 = xo.getPtArray(1);
- path.quadTo((Long)pt1.getX(), (Long)pt1.getY(),
- (Long)pt2.getX(), (Long)pt2.getY());
- }
-
- private static CTAdjPoint2D[] addCubicBezierTo(final CTPath2D path) {
- final CTPath2DCubicBezierTo bez = path.addNewCubicBezTo();
- return new CTAdjPoint2D[]{ bez.addNewPt(), bez.addNewPt(), bez.addNewPt() };
- }
-
- private static void addCubicBezierTo(final Path2D path, final CTPath2DCubicBezierTo xo) {
- final CTAdjPoint2D pt1 = xo.getPtArray(0);
- final CTAdjPoint2D pt2 = xo.getPtArray(1);
- final CTAdjPoint2D pt3 = xo.getPtArray(2);
- path.curveTo((Long)pt1.getX(), (Long)pt1.getY(),
- (Long)pt2.getX(), (Long)pt2.getY(),
- (Long)pt3.getX(), (Long)pt3.getY());
- }
-
- private static CTAdjPoint2D[] addClosePath(final CTPath2D path) {
- path.addNewClose();
- return new CTAdjPoint2D[0];
- }
-
- private static void addClosePath(final Path2D path) {
- path.closePath();
- }
-
- /**
- * @param shapeId 1-based shapeId
- */
- static CTShape prototype(int shapeId) {
- CTShape ct = CTShape.Factory.newInstance();
- CTShapeNonVisual nvSpPr = ct.addNewNvSpPr();
- CTNonVisualDrawingProps cnv = nvSpPr.addNewCNvPr();
- cnv.setName("Freeform " + shapeId);
- cnv.setId(shapeId);
- nvSpPr.addNewCNvSpPr();
- nvSpPr.addNewNvPr();
- CTShapeProperties spPr = ct.addNewSpPr();
- CTCustomGeometry2D geom = spPr.addNewCustGeom();
- geom.addNewAvLst();
- geom.addNewGdLst();
- geom.addNewAhLst();
- geom.addNewCxnLst();
- CTGeomRect rect = geom.addNewRect();
- rect.setR("r");
- rect.setB("b");
- rect.setT("t");
- rect.setL("l");
- geom.addNewPathLst();
- return ct;
- }
- }
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