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support for retrieving pictures from HSSF workbooks, see bugzilla 50022

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1004233 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2010-10-04 13:34:17 +00:00
parent 01e3d56cdd
commit 70543d034e
5 changed files with 146 additions and 39 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.7-beta4" date="2010-??-??">
<action dev="poi-developers" type="fix">50022 - support for retrieving pictures from HSSF workbooks</action>
<action dev="poi-developers" type="fix">50020 - Avoid IllegalStateException when creating Data validation in sheet with macro</action>
<action dev="poi-developers" type="fix">50033 - Improved rounding in MOD</action>
<action dev="poi-developers" type="add">Generate SHA1 hashes of distribution files, alongside existing MD5 ones</action>

129
src/java/org/apache/poi/hssf/record/EscherAggregate.java
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@ -18,6 +18,7 @@
package org.apache.poi.hssf.record;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
@ -32,9 +33,11 @@ import org.apache.poi.ddf.EscherDgRecord;
import org.apache.poi.ddf.EscherDggRecord;
import org.apache.poi.ddf.EscherOptRecord;
import org.apache.poi.ddf.EscherProperties;
import org.apache.poi.ddf.EscherProperty;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.ddf.EscherRecordFactory;
import org.apache.poi.ddf.EscherSerializationListener;
import org.apache.poi.ddf.EscherSimpleProperty;
import org.apache.poi.ddf.EscherSpRecord;
import org.apache.poi.ddf.EscherSpgrRecord;
import org.apache.poi.ddf.EscherTextboxRecord;
@ -45,6 +48,7 @@ import org.apache.poi.hssf.model.DrawingManager2;
import org.apache.poi.hssf.model.TextboxShape;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFPicture;
import org.apache.poi.hssf.usermodel.HSSFShape;
import org.apache.poi.hssf.usermodel.HSSFShapeContainer;
import org.apache.poi.hssf.usermodel.HSSFShapeGroup;
@ -588,29 +592,83 @@ public final class EscherAggregate extends AbstractEscherHolderRecord {
//System.err.println(shapeContainer);
// Could be a group, or a base object
if(shapeContainer.getChildRecords().size() == 1 &&
shapeContainer.getChildContainers().size() == 1) {
if (shapeContainer.getRecordId() == EscherContainerRecord.SPGR_CONTAINER)
{
// Group
HSSFShapeGroup group =
new HSSFShapeGroup(null, new HSSFClientAnchor());
if (shapeContainer.getChildRecords().size() > 0)
{
HSSFShapeGroup group = new HSSFShapeGroup( null,
new HSSFClientAnchor() );
patriarch.getChildren().add( group );
EscherContainerRecord groupContainer =
(EscherContainerRecord)shapeContainer.getChild(0);
EscherContainerRecord groupContainer = (EscherContainerRecord) shapeContainer
.getChild( 0 );
convertRecordsToUserModel( groupContainer, group );
} else if(shapeContainer.hasChildOfType((short)0xF00D)) {
// TextBox
HSSFTextbox box =
new HSSFTextbox(null, new HSSFClientAnchor());
} else
{
log.log( POILogger.WARN,
"Found drawing group without children." );
}
} else if (shapeContainer.getRecordId() == EscherContainerRecord.SP_CONTAINER)
{
EscherSpRecord spRecord = shapeContainer
.getChildById( EscherSpRecord.RECORD_ID );
int type = spRecord.getOptions() >> 4;
switch (type)
{
case ST_TEXTBOX:
HSSFTextbox box = new HSSFTextbox( null,
new HSSFClientAnchor() );
patriarch.getChildren().add( box );
convertRecordsToUserModel( shapeContainer, box );
} else if(shapeContainer.hasChildOfType((short)0xF011)) {
// Not yet supporting EscherClientDataRecord stuff
} else {
// Base level
convertRecordsToUserModel(shapeContainer, patriarch);
break;
case ST_PICTUREFRAME:
// Duplicated from
// org.apache.poi.hslf.model.Picture.getPictureIndex()
EscherOptRecord opt = (EscherOptRecord) getEscherChild(
shapeContainer, EscherOptRecord.RECORD_ID );
EscherSimpleProperty prop = (EscherSimpleProperty) getEscherProperty(
opt, EscherProperties.BLIP__BLIPTODISPLAY );
if (prop == null)
{
log.log( POILogger.WARN,
"Picture index for picture shape not found." );
} else
{
int pictureIndex = prop.getPropertyValue();
EscherClientAnchorRecord anchorRecord = (EscherClientAnchorRecord) getEscherChild(
shapeContainer,
EscherClientAnchorRecord.RECORD_ID );
HSSFClientAnchor anchor = new HSSFClientAnchor();
anchor.setCol1( anchorRecord.getCol1() );
anchor.setCol2( anchorRecord.getCol2() );
anchor.setDx1( anchorRecord.getDx1() );
anchor.setDx2( anchorRecord.getDx2() );
anchor.setDy1( anchorRecord.getDy1() );
anchor.setDy2( anchorRecord.getDy2() );
anchor.setRow1( anchorRecord.getRow1() );
anchor.setRow2( anchorRecord.getRow2() );
HSSFPicture picture = new HSSFPicture( null, anchor );
picture.setPictureIndex( pictureIndex );
patriarch.getChildren().add( picture );
}
break;
default:
log.log( POILogger.WARN, "Unhandled shape type: "
+ type );
break;
}
} else
{
log.log( POILogger.WARN, "Unexpected record id of shape group." );
}
}
// Now, clear any trace of what records make up
@ -622,7 +680,7 @@ public final class EscherAggregate extends AbstractEscherHolderRecord {
// TODO: Support converting our records
// back into shapes
log.log(POILogger.WARN, "Not processing objects into Patriarch!");
// log.log(POILogger.WARN, "Not processing objects into Patriarch!");
}
private void convertRecordsToUserModel(EscherContainerRecord shapeContainer, Object model) {
@ -887,4 +945,43 @@ public final class EscherAggregate extends AbstractEscherHolderRecord {
}
// Duplicated from org.apache.poi.hslf.model.Shape
/**
* Helper method to return escher child by record ID
*
* @return escher record or <code>null</code> if not found.
*/
private static EscherRecord getEscherChild(EscherContainerRecord owner,
int recordId)
{
for (Iterator iterator = owner.getChildRecords().iterator(); iterator
.hasNext();)
{
EscherRecord escherRecord = (EscherRecord) iterator.next();
if (escherRecord.getRecordId() == recordId)
return escherRecord;
}
return null;
}
/**
* Returns escher property by id.
*
* @return escher property or <code>null</code> if not found.
*/
private static EscherProperty getEscherProperty(EscherOptRecord opt,
int propId)
{
if (opt != null)
for (Iterator iterator = opt.getEscherProperties().iterator(); iterator
.hasNext();)
{
EscherProperty prop = (EscherProperty) iterator.next();
if (prop.getPropertyNumber() == propId)
return prop;
}
return null;
}
}

2
src/java/org/apache/poi/hssf/usermodel/HSSFPicture.java
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@ -60,7 +60,7 @@ public final class HSSFPicture extends HSSFSimpleShape implements Picture {
/**
* Constructs a picture object.
*/
HSSFPicture( HSSFShape parent, HSSFAnchor anchor )
public HSSFPicture( HSSFShape parent, HSSFAnchor anchor )
{
super( parent, anchor );
setShapeType(OBJECT_TYPE_PICTURE);

9
src/java/org/apache/poi/hssf/usermodel/HSSFWorkbook.java
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@ -1584,19 +1584,26 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
private void searchForPictures(List<EscherRecord> escherRecords, List<HSSFPictureData> pictures)
{
for(EscherRecord escherRecord : escherRecords) {
if (escherRecord instanceof EscherBSERecord)
{
EscherBlipRecord blip = ((EscherBSERecord) escherRecord).getBlipRecord();
if (blip != null)
{
// TODO: Some kind of structure.
pictures.add(new HSSFPictureData(blip));
HSSFPictureData picture = new HSSFPictureData(blip);
pictures.add(picture);
} else {
pictures.add(null);
}
}
// Recursive call.
searchForPictures(escherRecord.getChildRecords(), pictures);
}
}
/**

14
src/testcases/org/apache/poi/hssf/usermodel/TestEscherGraphics.java
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@ -250,18 +250,20 @@ public final class TestEscherGraphics extends TestCase {
assertEquals(40, patriarch.getY2());
// Check the two groups and the text
assertEquals(3, patriarch.countOfAllChildren());
assertEquals(2, patriarch.getChildren().size());
// Result of patriarch.countOfAllChildren() makes no sense:
// Returns 4 for 2 empty groups + 1 TextBox.
//assertEquals(3, patriarch.countOfAllChildren());
assertEquals(3, patriarch.getChildren().size());
// Should be two groups and a text
assertTrue(patriarch.getChildren().get(0) instanceof HSSFShapeGroup);
assertTrue(patriarch.getChildren().get(1) instanceof HSSFTextbox);
// assertTrue(patriarch.getChildren().get(2) instanceof HSSFShapeGroup);
assertTrue(patriarch.getChildren().get(1) instanceof HSSFShapeGroup);
assertTrue(patriarch.getChildren().get(2) instanceof HSSFTextbox);
s1 = (HSSFShapeGroup)patriarch.getChildren().get(0);
tbox1 = (HSSFTextbox)patriarch.getChildren().get(1);
tbox1 = (HSSFTextbox)patriarch.getChildren().get(2);
// s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
s2 = (HSSFShapeGroup)patriarch.getChildren().get(1);
assertEquals(2, s1.getX1());
assertEquals(3, s1.getY1());