org.apache.poi.hslf.usermodel.HSLFGroupShape Maven / Gradle / Ivy
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package org.apache.poi.hslf.usermodel;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.ddf.EscherChildAnchorRecord;
import org.apache.poi.ddf.EscherClientAnchorRecord;
import org.apache.poi.ddf.EscherContainerRecord;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.ddf.EscherSpRecord;
import org.apache.poi.ddf.EscherSpgrRecord;
import org.apache.poi.sl.usermodel.GroupShape;
import org.apache.poi.sl.usermodel.PictureData;
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.POILogger;
import org.apache.poi.util.Units;
/**
* Represents a group of shapes.
*
* @author Yegor Kozlov
*/
public class HSLFGroupShape extends HSLFShape
implements HSLFShapeContainer, GroupShape {
/**
* Create a new ShapeGroup. This constructor is used when a new shape is created.
*
*/
public HSLFGroupShape(){
this(null, null);
_escherContainer = createSpContainer(false);
}
/**
* Create a new ShapeGroup. This constructor is used when a new shape is created.
*
* @param parent the parent of the shape
*/
public HSLFGroupShape(ShapeContainer parent){
this(null, parent);
_escherContainer = createSpContainer(parent instanceof HSLFGroupShape);
}
/**
* Create a ShapeGroup object and initialize it from the supplied Record container.
*
* @param escherRecord EscherSpContainer
container which holds information about this shape
* @param parent the parent of the shape
*/
protected HSLFGroupShape(EscherContainerRecord escherRecord, ShapeContainer parent){
super(escherRecord, parent);
}
@Override
public void setAnchor(Rectangle2D anchor) {
EscherClientAnchorRecord clientAnchor = getEscherChild(EscherClientAnchorRecord.RECORD_ID);
boolean isInitialized = !(clientAnchor.getDx1() == 0 && clientAnchor.getRow1() == 0);
if (isInitialized) {
moveAndScale(anchor);
} else {
setExteriorAnchor(anchor);
}
}
@Override
public void setInteriorAnchor(Rectangle2D anchor){
EscherSpgrRecord spgr = getEscherChild(EscherSpgrRecord.RECORD_ID);
int x1 = Units.pointsToMaster(anchor.getX());
int y1 = Units.pointsToMaster(anchor.getY());
int x2 = Units.pointsToMaster(anchor.getX() + anchor.getWidth());
int y2 = Units.pointsToMaster(anchor.getY() + anchor.getHeight());
spgr.setRectX1(x1);
spgr.setRectY1(y1);
spgr.setRectX2(x2);
spgr.setRectY2(y2);
}
@Override
public Rectangle2D getInteriorAnchor(){
EscherSpgrRecord rec = getEscherChild(EscherSpgrRecord.RECORD_ID);
double x1 = Units.masterToPoints(rec.getRectX1());
double y1 = Units.masterToPoints(rec.getRectY1());
double x2 = Units.masterToPoints(rec.getRectX2());
double y2 = Units.masterToPoints(rec.getRectY2());
return new Rectangle2D.Double(x1,y1,x2-x1,y2-y1);
}
protected void setExteriorAnchor(Rectangle2D anchor) {
EscherClientAnchorRecord clientAnchor = getEscherChild(EscherClientAnchorRecord.RECORD_ID);
//hack. internal variable EscherClientAnchorRecord.shortRecord can be
//initialized only in fillFields(). We need to set shortRecord=false;
byte[] header = new byte[16];
LittleEndian.putUShort(header, 0, 0);
LittleEndian.putUShort(header, 2, 0);
LittleEndian.putInt(header, 4, 8);
clientAnchor.fillFields(header, 0, null);
// All coordinates need to be converted to Master units (576 dpi)
clientAnchor.setFlag((short)Units.pointsToMaster(anchor.getY()));
clientAnchor.setCol1((short)Units.pointsToMaster(anchor.getX()));
clientAnchor.setDx1((short)Units.pointsToMaster(anchor.getWidth() + anchor.getX()));
clientAnchor.setRow1((short)Units.pointsToMaster(anchor.getHeight() + anchor.getY()));
// TODO: does this make sense?
setInteriorAnchor(anchor);
}
/**
* Create a new ShapeGroup and create an instance of EscherSpgrContainer
which represents a group of shapes
*/
protected EscherContainerRecord createSpContainer(boolean isChild) {
EscherContainerRecord spgr = new EscherContainerRecord();
spgr.setRecordId(EscherContainerRecord.SPGR_CONTAINER);
spgr.setOptions((short)15);
//The group itself is a shape, and always appears as the first EscherSpContainer in the group container.
EscherContainerRecord spcont = new EscherContainerRecord();
spcont.setRecordId(EscherContainerRecord.SP_CONTAINER);
spcont.setOptions((short)15);
EscherSpgrRecord spg = new EscherSpgrRecord();
spg.setOptions((short)1);
spcont.addChildRecord(spg);
EscherSpRecord sp = new EscherSpRecord();
short type = (short)((ShapeType.NOT_PRIMITIVE.nativeId << 4) + 2);
sp.setOptions(type);
sp.setFlags(EscherSpRecord.FLAG_HAVEANCHOR | EscherSpRecord.FLAG_GROUP);
spcont.addChildRecord(sp);
EscherClientAnchorRecord anchor = new EscherClientAnchorRecord();
spcont.addChildRecord(anchor);
spgr.addChildRecord(spcont);
return spgr;
}
/**
* Add a shape to this group.
*
* @param shape - the Shape to add
*/
public void addShape(HSLFShape shape){
_escherContainer.addChildRecord(shape.getSpContainer());
HSLFSheet sheet = getSheet();
shape.setSheet(sheet);
shape.setShapeId(sheet.allocateShapeId());
shape.afterInsert(sheet);
}
/**
* Moves and scales this ShapeGroup
to the specified anchor.
*/
protected void moveAndScale(Rectangle2D anchorDest){
Rectangle2D anchorSrc = getAnchor();
double scaleX = (anchorSrc.getWidth() == 0) ? 0 : anchorDest.getWidth() / anchorSrc.getWidth();
double scaleY = (anchorSrc.getHeight() == 0) ? 0 : anchorDest.getHeight() / anchorSrc.getHeight();
setExteriorAnchor(anchorDest);
for (HSLFShape shape : getShapes()) {
Rectangle2D chanchor = shape.getAnchor();
double x = anchorDest.getX()+(chanchor.getX()-anchorSrc.getX())*scaleX;
double y = anchorDest.getY()+(chanchor.getY()-anchorSrc.getY())*scaleY;
double width = chanchor.getWidth()*scaleX;
double height = chanchor.getHeight()*scaleY;
shape.setAnchor(new Rectangle2D.Double(x, y, width, height));
}
}
/**
* Returns the anchor (the bounding box rectangle) of this shape group.
* All coordinates are expressed in points (72 dpi).
*
* @return the anchor of this shape group
*/
public Rectangle2D getAnchor(){
EscherClientAnchorRecord clientAnchor = getEscherChild(EscherClientAnchorRecord.RECORD_ID);
int x1,y1,x2,y2;
if(clientAnchor == null){
logger.log(POILogger.INFO, "EscherClientAnchorRecord was not found for shape group. Searching for EscherChildAnchorRecord.");
EscherChildAnchorRecord rec = getEscherChild(EscherChildAnchorRecord.RECORD_ID);
x1 = rec.getDx1();
y1 = rec.getDy1();
x2 = rec.getDx2();
y2 = rec.getDy2();
} else {
x1 = clientAnchor.getCol1();
y1 = clientAnchor.getFlag();
x2 = clientAnchor.getDx1();
y2 = clientAnchor.getRow1();
}
Rectangle2D anchor= new Rectangle2D.Double(
(x1 == -1 ? -1 : Units.masterToPoints(x1)),
(y1 == -1 ? -1 : Units.masterToPoints(y1)),
(x2 == -1 ? -1 : Units.masterToPoints(x2-x1)),
(y2 == -1 ? -1 : Units.masterToPoints(y2-y1))
);
return anchor;
}
/**
* Return type of the shape.
* In most cases shape group type is {@link org.apache.poi.sl.usermodel.ShapeType#NOT_PRIMITIVE}
*
* @return type of the shape.
*/
public ShapeType getShapeType(){
EscherSpRecord spRecord = getEscherChild(EscherSpRecord.RECORD_ID);
int nativeId = spRecord.getOptions() >> 4;
return ShapeType.forId(nativeId, false);
}
/**
* Returns null
- shape groups can't have hyperlinks
*
* @return null
.
*/
public HSLFHyperlink getHyperlink(){
return null;
}
@Override
public T getEscherChild(int recordId){
EscherContainerRecord groupInfoContainer = (EscherContainerRecord)_escherContainer.getChild(0);
return groupInfoContainer.getChildById((short)recordId);
}
public Iterator iterator() {
return getShapes().iterator();
}
public boolean removeShape(HSLFShape shape) {
// TODO: implement!
throw new UnsupportedOperationException();
}
@Override
public List getShapes() {
// Out escher container record should contain several
// SpContainers, the first of which is the group shape itself
Iterator iter = _escherContainer.getChildIterator();
// Don't include the first SpContainer, it is always NotPrimitive
if (iter.hasNext()) {
iter.next();
}
List shapeList = new ArrayList();
while (iter.hasNext()) {
EscherRecord r = iter.next();
if(r instanceof EscherContainerRecord) {
// Create the Shape for it
EscherContainerRecord container = (EscherContainerRecord)r;
HSLFShape shape = HSLFShapeFactory.createShape(container, this);
shape.setSheet(getSheet());
shapeList.add( shape );
} else {
// Should we do anything special with these non
// Container records?
logger.log(POILogger.ERROR, "Shape contained non container escher record, was " + r.getClass().getName());
}
}
return shapeList;
}
@Override
public HSLFTextBox createTextBox() {
HSLFTextBox s = new HSLFTextBox(this);
s.setHorizontalCentered(true);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFAutoShape createAutoShape() {
HSLFAutoShape s = new HSLFAutoShape(ShapeType.RECT, this);
s.setHorizontalCentered(true);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFFreeformShape createFreeform() {
HSLFFreeformShape s = new HSLFFreeformShape(this);
s.setHorizontalCentered(true);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFConnectorShape createConnector() {
HSLFConnectorShape s = new HSLFConnectorShape(this);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFGroupShape createGroup() {
HSLFGroupShape s = new HSLFGroupShape(this);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFPictureShape createPicture(PictureData pictureData) {
if (!(pictureData instanceof HSLFPictureData)) {
throw new IllegalArgumentException("pictureData needs to be of type HSLFPictureData");
}
HSLFPictureShape s = new HSLFPictureShape((HSLFPictureData)pictureData, this);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
@Override
public HSLFTable createTable(int numRows, int numCols) {
if (numRows < 1 || numCols < 1) {
throw new IllegalArgumentException("numRows and numCols must be greater than 0");
}
HSLFTable s = new HSLFTable(numRows,numCols,this);
s.setAnchor(new Rectangle2D.Double(0, 0, 100, 100));
addShape(s);
return s;
}
}
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