create chart from scratch by sandeeptiwari32

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1848432 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 110 insertions, 6 deletions

diff --git a/src/ooxml/java/org/apache/poi/xslf/usermodel/XMLSlideShow.java b/src/ooxml/java/org/apache/poi/xslf/usermodel/XMLSlideShow.java
index 687ddc5f5b..b0cbc59dd1 100644
--- a/src/ooxml/java/org/apache/poi/xslf/usermodel/XMLSlideShow.java
+++ b/src/ooxml/java/org/apache/poi/xslf/usermodel/XMLSlideShow.java
@@ -302,14 +302,23 @@ public class XMLSlideShow extends POIXMLDocument
      * Create a blank chart on the given slide.
      */
     public XSLFChart createChart(XSLFSlide slide) {
+        XSLFChart chart = createChart();
+        slide.addRelation(null, XSLFRelation.CHART, chart);
+        return chart;
+    }
+    
+    /**
+     * This method is used to create template for chart XML.
+     * @return Xslf chart object 
+     * @since POI 4.0.2 
+     */
+    public XSLFChart createChart() {
         int chartIdx = findNextAvailableFileNameIndex(XSLFRelation.CHART, _charts.size() + 1);
         XSLFChart chart = (XSLFChart) createRelationship(XSLFRelation.CHART, XSLFFactory.getInstance(), chartIdx, true).getDocumentPart();
-        slide.addRelation(null, XSLFRelation.CHART, chart);
         chart.setChartIndex(chartIdx);
         _charts.add(chart);
         return chart;
     }
-
     /**
      * Return notes slide for the specified slide or create new if it does not exist yet.
      */
@@ -416,7 +425,7 @@ public class XMLSlideShow extends POIXMLDocument
      * Return all the charts in the slideshow
      */
     public List<XSLFChart> getCharts() {
-        return _charts;
+        return Collections.unmodifiableList(_charts);
     }
 
     /**
diff --git a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFChart.java b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFChart.java
index 8e6612f875..5e8d73cd06 100644
--- a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFChart.java
+++ b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFChart.java
@@ -19,16 +19,28 @@
 
 package org.apache.poi.xslf.usermodel;
 
+import java.awt.geom.Rectangle2D;
 import java.io.IOException;
 
+import javax.xml.namespace.QName;
+
 import org.apache.poi.ooxml.POIXMLFactory;
 import org.apache.poi.ooxml.POIXMLRelation;
 import org.apache.poi.openxml4j.opc.PackagePart;
+import org.apache.poi.openxml4j.opc.PackageRelationshipTypes;
 import org.apache.poi.util.Beta;
 import org.apache.poi.xddf.usermodel.chart.XDDFChart;
+import org.apache.xmlbeans.XmlCursor;
 import org.apache.xmlbeans.XmlException;
 import org.openxmlformats.schemas.drawingml.x2006.chart.CTTitle;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTGraphicalObjectData;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTPoint2D;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTPositiveSize2D;
 import org.openxmlformats.schemas.drawingml.x2006.main.CTTextBody;
+import org.openxmlformats.schemas.drawingml.x2006.main.CTTransform2D;
+import org.openxmlformats.schemas.presentationml.x2006.main.CTGraphicalObjectFrame;
+import org.openxmlformats.schemas.presentationml.x2006.main.CTGraphicalObjectFrameNonVisual;
 
 /**
  * Represents a Chart in a .pptx presentation
@@ -36,6 +48,8 @@ import org.openxmlformats.schemas.drawingml.x2006.main.CTTextBody;
 @Beta
 public final class XSLFChart extends XDDFChart {
 
+    private static String CHART_URI = "http://schemas.openxmlformats.org/drawingml/2006/chart";
+
     /**
      * Construct a PresentationML chart.
      */
@@ -90,4 +104,47 @@ public final class XSLFChart extends XDDFChart {
             };
         }
     }
+
+    /**
+     * method to add graphic frame for XSLF chart
+     *
+     * @param shapeId shape id
+     * @param rID relation id
+     * @param anchor size and location of chart
+     * @return graphic frame object
+     * @since POI 4.0.2
+     */
+    static CTGraphicalObjectFrame prototype(int shapeId, String rID, Rectangle2D anchor) {
+        CTGraphicalObjectFrame frame = CTGraphicalObjectFrame.Factory.newInstance();
+        CTGraphicalObjectFrameNonVisual nvGr = frame.addNewNvGraphicFramePr();
+
+        CTNonVisualDrawingProps cnv = nvGr.addNewCNvPr();
+        cnv.setName("Chart " + shapeId);
+        cnv.setId(shapeId);
+        nvGr.addNewCNvGraphicFramePr().addNewGraphicFrameLocks().setNoGrp(true);
+        nvGr.addNewNvPr();
+
+        CTTransform2D xfrm = frame.addNewXfrm();
+
+        CTPoint2D off = xfrm.addNewOff();
+        off.setX((int)anchor.getX());
+        off.setY((int)anchor.getY());
+
+        CTPositiveSize2D ext = xfrm.addNewExt();
+        ext.setCx((int)anchor.getWidth());
+        ext.setCy((int)anchor.getHeight());
+
+        xfrm.setExt(ext);
+        xfrm.setOff(off);
+
+        CTGraphicalObjectData gr = frame.addNewGraphic().addNewGraphicData();
+        XmlCursor grCur = gr.newCursor();
+        grCur.toNextToken();
+        grCur.beginElement(new QName(CHART_URI, "chart"));
+        grCur.insertAttributeWithValue("id", PackageRelationshipTypes.CORE_PROPERTIES_ECMA376_NS, rID);
+        grCur.dispose();
+
+        gr.setUri(CHART_URI);
+        return frame;
+    }
 }
diff --git a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFDrawing.java b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFDrawing.java
index f4cd0d8e1c..ba93988d0b 100644
--- a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFDrawing.java
+++ b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFDrawing.java
@@ -107,6 +107,19 @@ public class XSLFDrawing {
         return shape;
     }
 
+    /**
+     * This method will add chart into slide's graphic frame
+     *
+     * @param rID relation id of chart
+     * @param rect2D Chart Bounding values
+     * @since POI 4.0.2
+     */
+    public void addChart(String rID, Rectangle2D rect2D) {
+        CTGraphicalObjectFrame sp = _spTree.addNewGraphicFrame();
+        sp.set(XSLFChart.prototype(_sheet.allocateShapeId(), rID, rect2D));
+    }
+
+
     public XSLFObjectShape createOleShape(String pictureRel) {
         CTGraphicalObjectFrame sp = _spTree.addNewGraphicFrame();
         sp.set(XSLFObjectShape.prototype(_sheet.allocateShapeId(), pictureRel));
diff --git a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSheet.java b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
index b67264ba0f..2bcf063990 100644
--- a/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
+++ b/src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSheet.java
@@ -20,6 +20,7 @@ import static org.apache.poi.ooxml.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
 
 import java.awt.Dimension;
 import java.awt.Graphics2D;
+import java.awt.geom.Rectangle2D;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -52,6 +53,7 @@ import org.apache.poi.util.IOUtils;
 import org.apache.poi.util.POILogFactory;
 import org.apache.poi.util.POILogger;
 import org.apache.poi.util.Units;
+import org.apache.poi.xddf.usermodel.chart.XDDFChart;
 import org.apache.xmlbeans.XmlCursor;
 import org.apache.xmlbeans.XmlException;
 import org.apache.xmlbeans.XmlObject;
@@ -306,14 +308,13 @@ implements XSLFShapeContainer, Sheet<XSLFShape,XSLFTextParagraph> {
             throw new IllegalArgumentException("pictureData needs to be of type XSLFPictureData");
         }
         RelationPart rp = addRelation(null, XSLFRelation.IMAGES, (XSLFPictureData)pictureData);
-        
+
         XSLFObjectShape sh = getDrawing().createOleShape(rp.getRelationship().getId());
         CTOleObject oleObj = sh.getCTOleObject();
         Dimension dim = pictureData.getImageDimension();
         oleObj.setImgW(Units.toEMU(dim.getWidth()));
         oleObj.setImgH(Units.toEMU(dim.getHeight()));
-        
-        
+
         getShapes().add(sh);
         sh.setParent(this);
         return sh;
@@ -719,4 +720,28 @@ implements XSLFShapeContainer, Sheet<XSLFShape,XSLFTextParagraph> {
         return (ph == null) ? null : new XSLFPlaceholderDetails(ph);
     }
 
+    /**
+     * this method will add chart into slide
+     * with default height, width, x and y
+     * @param chart xslf chart object
+     * @since POI 4.0.2
+     */
+    public void addChart(XSLFChart chart) {
+        Rectangle2D rect2D = new java.awt.Rectangle(XDDFChart.DEFAULT_X, XDDFChart.DEFAULT_Y,
+                XDDFChart.DEFAULT_WIDTH, XDDFChart.DEFAULT_HEIGHT);
+
+        this.addChart(chart, rect2D);
+    }
+
+    /**
+     * this method will add chart into slide
+     * with given height, width, x and y
+     * @param chart xslf chart object
+     * @since POI 4.0.2
+     */
+    public void addChart(XSLFChart chart, Rectangle2D rect2D) {
+        RelationPart rp = addRelation(null, XSLFRelation.CHART, chart);
+        getDrawing().addChart(rp.getRelationship().getId(), rect2D);
+    }
+
 }