org.apache.poi.hslf.model.ShapeGroup Maven / Gradle / Ivy
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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
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http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
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See the License for the specific language governing permissions and
limitations under the License.
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package org.apache.poi.hslf.model;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
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.util.LittleEndian;
import org.apache.poi.util.POILogger;
/**
* Represents a group of shapes.
*
* @author Yegor Kozlov
*/
public class ShapeGroup extends Shape{
/**
* Create a new ShapeGroup. This constructor is used when a new shape is created.
*
*/
public ShapeGroup(){
this(null, null);
_escherContainer = createSpContainer(false);
}
/**
* Create a ShapeGroup object and initilize it from the supplied Record container.
*
* @param escherRecord EscherSpContainer container which holds information about this shape
* @param parent the parent of the shape
*/
protected ShapeGroup(EscherContainerRecord escherRecord, Shape parent){
super(escherRecord, parent);
}
/**
* @return the shapes contained in this group container
*/
public Shape[] 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;
Shape shape = ShapeFactory.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());
}
}
// Put the shapes into an array, and return
Shape[] shapes = shapeList.toArray(new Shape[shapeList.size()]);
return shapes;
}
/**
* Sets the anchor (the bounding box rectangle) of this shape.
* All coordinates should be expressed in Master units (576 dpi).
*
* @param anchor new anchor
*/
public void setAnchor(java.awt.Rectangle anchor){
EscherContainerRecord spContainer = (EscherContainerRecord)_escherContainer.getChild(0);
EscherClientAnchorRecord clientAnchor = (EscherClientAnchorRecord)getEscherChild(spContainer, 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);
clientAnchor.setFlag((short)(anchor.y*MASTER_DPI/POINT_DPI));
clientAnchor.setCol1((short)(anchor.x*MASTER_DPI/POINT_DPI));
clientAnchor.setDx1((short)((anchor.width + anchor.x)*MASTER_DPI/POINT_DPI));
clientAnchor.setRow1((short)((anchor.height + anchor.y)*MASTER_DPI/POINT_DPI));
EscherSpgrRecord spgr = (EscherSpgrRecord)getEscherChild(spContainer, EscherSpgrRecord.RECORD_ID);
spgr.setRectX1(anchor.x*MASTER_DPI/POINT_DPI);
spgr.setRectY1(anchor.y*MASTER_DPI/POINT_DPI);
spgr.setRectX2((anchor.x + anchor.width)*MASTER_DPI/POINT_DPI);
spgr.setRectY2((anchor.y + anchor.height)*MASTER_DPI/POINT_DPI);
}
/**
* Sets the coordinate space of this group. All children are constrained
* to these coordinates.
*
* @param anchor the coordinate space of this group
*/
public void setCoordinates(Rectangle2D anchor){
EscherContainerRecord spContainer = (EscherContainerRecord)_escherContainer.getChild(0);
EscherSpgrRecord spgr = (EscherSpgrRecord)getEscherChild(spContainer, EscherSpgrRecord.RECORD_ID);
int x1 = (int)Math.round(anchor.getX()*MASTER_DPI/POINT_DPI);
int y1 = (int)Math.round(anchor.getY()*MASTER_DPI/POINT_DPI);
int x2 = (int)Math.round((anchor.getX() + anchor.getWidth())*MASTER_DPI/POINT_DPI);
int y2 = (int)Math.round((anchor.getY() + anchor.getHeight())*MASTER_DPI/POINT_DPI);
spgr.setRectX1(x1);
spgr.setRectY1(y1);
spgr.setRectX2(x2);
spgr.setRectY2(y2);
}
/**
* Gets the coordinate space of this group. All children are constrained
* to these coordinates.
*
* @return the coordinate space of this group
*/
public Rectangle2D getCoordinates(){
EscherContainerRecord spContainer = (EscherContainerRecord)_escherContainer.getChild(0);
EscherSpgrRecord spgr = (EscherSpgrRecord)getEscherChild(spContainer, EscherSpgrRecord.RECORD_ID);
Rectangle2D.Float anchor = new Rectangle2D.Float();
anchor.x = (float)spgr.getRectX1()*POINT_DPI/MASTER_DPI;
anchor.y = (float)spgr.getRectY1()*POINT_DPI/MASTER_DPI;
anchor.width = (float)(spgr.getRectX2() - spgr.getRectX1())*POINT_DPI/MASTER_DPI;
anchor.height = (float)(spgr.getRectY2() - spgr.getRectY1())*POINT_DPI/MASTER_DPI;
return 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 = (ShapeTypes.NotPrimitive << 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(Shape shape){
_escherContainer.addChildRecord(shape.getSpContainer());
Sheet sheet = getSheet();
shape.setSheet(sheet);
shape.setShapeId(sheet.allocateShapeId());
shape.afterInsert(sheet);
}
/**
* Moves this ShapeGroup to the specified location.
*
* @param x the x coordinate of the top left corner of the shape in new location
* @param y the y coordinate of the top left corner of the shape in new location
*/
public void moveTo(int x, int y){
java.awt.Rectangle anchor = getAnchor();
int dx = x - anchor.x;
int dy = y - anchor.y;
anchor.translate(dx, dy);
setAnchor(anchor);
Shape[] shape = getShapes();
for (int i = 0; i < shape.length; i++) {
java.awt.Rectangle chanchor = shape[i].getAnchor();
chanchor.translate(dx, dy);
shape[i].setAnchor(chanchor);
}
}
/**
* 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 getAnchor2D(){
EscherContainerRecord spContainer = (EscherContainerRecord)_escherContainer.getChild(0);
EscherClientAnchorRecord clientAnchor = (EscherClientAnchorRecord)getEscherChild(spContainer, EscherClientAnchorRecord.RECORD_ID);
Rectangle2D.Float anchor = new Rectangle2D.Float();
if(clientAnchor == null){
logger.log(POILogger.INFO, "EscherClientAnchorRecord was not found for shape group. Searching for EscherChildAnchorRecord.");
EscherChildAnchorRecord rec = (EscherChildAnchorRecord)getEscherChild(spContainer, EscherChildAnchorRecord.RECORD_ID);
anchor = new Rectangle2D.Float(
(float)rec.getDx1()*POINT_DPI/MASTER_DPI,
(float)rec.getDy1()*POINT_DPI/MASTER_DPI,
(float)(rec.getDx2()-rec.getDx1())*POINT_DPI/MASTER_DPI,
(float)(rec.getDy2()-rec.getDy1())*POINT_DPI/MASTER_DPI
);
} else {
anchor.x = (float)clientAnchor.getCol1()*POINT_DPI/MASTER_DPI;
anchor.y = (float)clientAnchor.getFlag()*POINT_DPI/MASTER_DPI;
anchor.width = (float)(clientAnchor.getDx1() - clientAnchor.getCol1())*POINT_DPI/MASTER_DPI ;
anchor.height = (float)(clientAnchor.getRow1() - clientAnchor.getFlag())*POINT_DPI/MASTER_DPI;
}
return anchor;
}
/**
* Return type of the shape.
* In most cases shape group type is {@link org.apache.poi.hslf.model.ShapeTypes#NotPrimitive}
*
* @return type of the shape.
*/
public int getShapeType(){
EscherContainerRecord groupInfoContainer = (EscherContainerRecord)_escherContainer.getChild(0);
EscherSpRecord spRecord = groupInfoContainer.getChildById(EscherSpRecord.RECORD_ID);
return spRecord.getOptions() >> 4;
}
/**
* Returns null - shape groups can't have hyperlinks
*
* @return null.
*/
public Hyperlink getHyperlink(){
return null;
}
public void draw(Graphics2D graphics){
AffineTransform at = graphics.getTransform();
Shape[] sh = getShapes();
for (int i = 0; i < sh.length; i++) {
sh[i].draw(graphics);
}
graphics.setTransform(at);
}
}