activexshape.java

来自「EXCEL read and write」· Java 代码 · 共 153 行

package org.apache.poi.hslf.model;

import org.apache.poi.ddf.*;
import org.apache.poi.hslf.record.*;
import org.apache.poi.hslf.exceptions.HSLFException;
import org.apache.poi.util.LittleEndian;

import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Iterator;

/**
 * Represents an ActiveX control in a PowerPoint document.
 *
 * TODO: finish
 * @author Yegor Kozlov
 */
public class ActiveXShape extends Picture {
    public static final int DEFAULT_ACTIVEX_THUMBNAIL = -1;

    /**
     * Create a new <code>Picture</code>
     *
    * @param pictureIdx the index of the picture
     */
    public ActiveXShape(int movieIdx, int pictureIdx){
        super(pictureIdx, null);
        setActiveXIndex(movieIdx);
    }

    /**
      * Create a <code>Picture</code> object
      *
      * @param escherRecord the <code>EscherSpContainer</code> record which holds information about
      *        this picture in the <code>Slide</code>
      * @param parent the parent shape of this picture
      */
     protected ActiveXShape(EscherContainerRecord escherRecord, Shape parent){
        super(escherRecord, parent);
    }

    /**
     * Create a new Placeholder and initialize internal structures
     *
     * @return the created <code>EscherContainerRecord</code> which holds shape data
     */
    protected EscherContainerRecord createSpContainer(int idx, boolean isChild) {
        _escherContainer = super.createSpContainer(idx, isChild);

        EscherSpRecord spRecord = _escherContainer.getChildById(EscherSpRecord.RECORD_ID);
        spRecord.setFlags(EscherSpRecord.FLAG_HAVEANCHOR | EscherSpRecord.FLAG_HASSHAPETYPE | EscherSpRecord.FLAG_OLESHAPE);

        setShapeType(ShapeTypes.HostControl);
        setEscherProperty(EscherProperties.BLIP__PICTUREID, idx);
        setEscherProperty(EscherProperties.LINESTYLE__COLOR, 0x8000001);
        setEscherProperty(EscherProperties.LINESTYLE__NOLINEDRAWDASH, 0x80008);
        setEscherProperty(EscherProperties.SHADOWSTYLE__COLOR, 0x8000002);
        setEscherProperty(EscherProperties.PROTECTION__LOCKAGAINSTGROUPING, -1);

        EscherClientDataRecord cldata = new EscherClientDataRecord();
        cldata.setOptions((short)0xF);
        _escherContainer.getChildRecords().add(cldata);

        OEShapeAtom oe = new OEShapeAtom();

        //convert hslf into ddf
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        try {
            oe.writeOut(out);
        } catch(Exception e){
            throw new HSLFException(e);
        }
        cldata.setRemainingData(out.toByteArray());

        return _escherContainer;
    }

    /**
     * Assign a control to this shape
     *
     * @see {@link org.apache.poi.hslf.usermodel.SlideShow#addMovie(String, int)}
     * @param idx  the index of the movie
     */
    public void setActiveXIndex(int idx){
        EscherContainerRecord spContainer = getSpContainer();
        for (Iterator it = spContainer.getChildRecords().iterator(); it.hasNext();) {
            EscherRecord obj = (EscherRecord) it.next();
            if (obj.getRecordId() == EscherClientDataRecord.RECORD_ID) {
                EscherClientDataRecord clientRecord = (EscherClientDataRecord)obj;
                byte[] recdata = clientRecord.getRemainingData();
                LittleEndian.putInt(recdata, 8, idx);
            }
        }
    }

    public int getControlIndex(){
        int idx = -1;
        OEShapeAtom oe = (OEShapeAtom)getClientDataRecord(RecordTypes.OEShapeAtom.typeID);
        if(oe != null) idx = oe.getOptions();
        return idx;
    }

    /**
     * Set a property of this ActiveX control
     * @param key
     * @param value
     */
    public void setProperty(String key, String value){

    }

    /**
     * Document-level container that specifies information about an ActiveX control
     *
     * @return container that specifies information about an ActiveX control
     */
    public ExControl getExControl(){
        int idx = getControlIndex();
        ExControl ctrl = null;
        Document doc = getSheet().getSlideShow().getDocumentRecord();
        ExObjList lst = (ExObjList)doc.findFirstOfType(RecordTypes.ExObjList.typeID);
        if(lst != null){
            Record[] ch = lst.getChildRecords();
            for (int i = 0; i < ch.length; i++) {
                if(ch[i] instanceof ExControl){
                    ExControl c = (ExControl)ch[i];
                    if(c.getExOleObjAtom().getObjID() == idx){
                        ctrl = c;
                        break;
                    }
                }
            }
        }
        return ctrl;
    }

    protected void afterInsert(Sheet sheet){
        ExControl ctrl = getExControl();
        ctrl.getExControlAtom().setSlideId(sheet._getSheetNumber());

        try {
            String name = ctrl.getProgId() + "-" + getControlIndex();
            byte[] data = (name + '\u0000').getBytes("UTF-16LE");
            EscherComplexProperty prop = new EscherComplexProperty(EscherProperties.GROUPSHAPE__SHAPENAME, false, data);
            EscherOptRecord opt = (EscherOptRecord)getEscherChild(_escherContainer, EscherOptRecord.RECORD_ID);
            opt.addEscherProperty(prop);
        } catch (UnsupportedEncodingException e){
            throw new HSLFException(e);
        }

    }
}