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Fix bug #51148 - XWPFDocument remove of tables/paragraphs now works correctly, and code is simplified 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1100027 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2011-05-06 02:14:48 +00:00
parent 9a0997290e
commit 700e7fd5e2
3 changed files with 116 additions and 52 deletions
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1
src/documentation/content/xdocs/status.xml
View File

@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta3" date="2011-??-??">
<action dev="poi-developers" type="fix">51148 - XWPFDocument now properly tracks paragraphs and tables when adding/removing them</action>
<action dev="poi-developers" type="fix">51153 - Correct sizing of LbsDataSubRecord with unused padding fields</action>
<action dev="poi-developers" type="fix">51143 - NameCommentRecord correction for writing non ASCII strings</action>
<action dev="poi-developers" type="fix">51112 - Correct XWPFTable tracking of new rows</action>

106
src/ooxml/java/org/apache/poi/xwpf/usermodel/XWPFDocument.java
View File

@ -254,6 +254,11 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
comments = new ArrayList<XWPFComment>();
paragraphs = new ArrayList<XWPFParagraph>();
tables= new ArrayList<XWPFTable>();
bodyElements = new ArrayList<IBodyElement>();
footers = new ArrayList<XWPFFooter>();
headers = new ArrayList<XWPFHeader>();
footnotes = new HashMap<Integer, XWPFFootnote>();
endnotes = new HashMap<Integer, XWPFFootnote>();
ctDocument = CTDocument1.Factory.newInstance();
ctDocument.addNewBody();
@ -438,6 +443,36 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
return embedds;
}
/**
* Finds that for example the 2nd entry in the body list is the 1st paragraph
*/
private int getBodyElementSpecificPos(int pos, List<? extends IBodyElement> list) {
// If there's nothing to find, skip it
if(list.size() == 0) {
return -1;
}
if(pos >= 0 && pos < bodyElements.size()) {
// Ensure the type is correct
IBodyElement needle = bodyElements.get(pos);
if(needle.getElementType() != list.get(0).getElementType()) {
// Wrong type
return -1;
}
// Work back until we find it
int startPos = Math.min(pos, list.size()-1);
for(int i=startPos; i>=0; i--) {
if(list.get(i) == needle) {
return i;
}
}
}
// Couldn't be found
return -1;
}
/**
* get with the position of a Paragraph in the bodyelement array list
* the position of this paragraph in the paragraph array list
@ -447,26 +482,7 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
*
*/
public int getParagraphPos(int pos){
if(pos >= 0 && pos < bodyElements.size()){
if(bodyElements.get(pos).getElementType() == BodyElementType.PARAGRAPH){
int startPos;
//find the startpoint for searching
if(pos < paragraphs.size()){
startPos = pos;
}
else{
startPos = (paragraphs.size());
}
for(int i = startPos; i < 0; i--){
if(paragraphs.get(i) == bodyElements.get(pos))
return i;
}
}
}
if(paragraphs.size() == 0){
return 0;
}
return -1;
return getBodyElementSpecificPos(pos, paragraphs);
}
/**
@ -477,27 +493,7 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
* else it will return null.
*/
public int getTablePos(int pos){
if(pos >= 0 && pos < bodyElements.size()){
if(bodyElements.get(pos).getElementType() == BodyElementType.TABLE){
int startPos;
//find the startpoint for searching
if(pos < tables.size()){
startPos = pos;
}
else{
startPos = (tables.size());
}
for(int i = startPos; i > 0; i--){
if(tables.get(i) == bodyElements.get(pos))
return i;
}
}
}
if(tables.size() == 0){
return 0;
}
else
return -1;
return getBodyElementSpecificPos(pos, tables);
}
/**
@ -650,6 +646,7 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
*/
public XWPFParagraph createParagraph(){
XWPFParagraph p = new XWPFParagraph(ctDocument.getBody().addNewP(), this);
bodyElements.add(p);
paragraphs.add(p);
return p;
}
@ -660,21 +657,20 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
* @return true if removing was successfully, else return false
*/
public boolean removeBodyElement(int pos){
if(pos >= 0 && pos < bodyElements.size()){
if(bodyElements.get(pos).getElementType() == BodyElementType.TABLE){
bodyElements.remove(pos);
Integer tablePos = getTablePos(pos);
if(pos >= 0 && pos < bodyElements.size()) {
BodyElementType type = bodyElements.get(pos).getElementType();
if(type == BodyElementType.TABLE){
int tablePos = getTablePos(pos);
tables.remove(tablePos);
ctDocument.getBody().removeTbl(tablePos);
return true;
}
if(bodyElements.get(pos).getElementType() == BodyElementType.PARAGRAPH){
bodyElements.remove(pos);
Integer paraPos = getParagraphPos(pos);
if(type == BodyElementType.PARAGRAPH){
int paraPos = getParagraphPos(pos);
paragraphs.remove(paraPos);
ctDocument.getBody().removeP(paraPos);
return true;
}
bodyElements.remove(pos);
return true;
}
return false;
}
@ -702,7 +698,10 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
* @return a new table
*/
public XWPFTable createTable(){
return new XWPFTable(ctDocument.getBody().addNewTbl(), this);
XWPFTable table = new XWPFTable(ctDocument.getBody().addNewTbl(), this);
bodyElements.add(table);
tables.add(table);
return table;
}
/**
@ -712,7 +711,10 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
* @return table
*/
public XWPFTable createTable(int rows, int cols) {
return new XWPFTable(ctDocument.getBody().addNewTbl(), this, rows, cols);
XWPFTable table = new XWPFTable(ctDocument.getBody().addNewTbl(), this, rows, cols);
bodyElements.add(table);
tables.add(table);
return table;
}

61
src/ooxml/testcases/org/apache/poi/xwpf/TestXWPFDocument.java
View File

@ -130,4 +130,65 @@ public final class TestXWPFDocument extends TestCase {
e.printStackTrace();
}
}
public void testRemoveBodyElement() {
XWPFDocument doc = XWPFTestDataSamples.openSampleDocument("sample.docx");
assertEquals(3, doc.getParagraphs().size());
assertEquals(3, doc.getBodyElements().size());
XWPFParagraph p1 = doc.getParagraphs().get(0);
XWPFParagraph p2 = doc.getParagraphs().get(1);
XWPFParagraph p3 = doc.getParagraphs().get(2);
assertEquals(p1, doc.getBodyElements().get(0));
assertEquals(p1, doc.getParagraphs().get(0));
assertEquals(p2, doc.getBodyElements().get(1));
assertEquals(p2, doc.getParagraphs().get(1));
assertEquals(p3, doc.getBodyElements().get(2));
assertEquals(p3, doc.getParagraphs().get(2));
// Add another
XWPFParagraph p4 = doc.createParagraph();
assertEquals(4, doc.getParagraphs().size());
assertEquals(4, doc.getBodyElements().size());
assertEquals(p1, doc.getBodyElements().get(0));
assertEquals(p1, doc.getParagraphs().get(0));
assertEquals(p2, doc.getBodyElements().get(1));
assertEquals(p2, doc.getParagraphs().get(1));
assertEquals(p3, doc.getBodyElements().get(2));
assertEquals(p3, doc.getParagraphs().get(2));
assertEquals(p4, doc.getBodyElements().get(3));
assertEquals(p4, doc.getParagraphs().get(3));
// Remove the 2nd
assertEquals(true, doc.removeBodyElement(1));
assertEquals(3, doc.getParagraphs().size());
assertEquals(3, doc.getBodyElements().size());
assertEquals(p1, doc.getBodyElements().get(0));
assertEquals(p1, doc.getParagraphs().get(0));
assertEquals(p3, doc.getBodyElements().get(1));
assertEquals(p3, doc.getParagraphs().get(1));
assertEquals(p4, doc.getBodyElements().get(2));
assertEquals(p4, doc.getParagraphs().get(2));
// Remove the 1st
assertEquals(true, doc.removeBodyElement(0));
assertEquals(2, doc.getParagraphs().size());
assertEquals(2, doc.getBodyElements().size());
assertEquals(p3, doc.getBodyElements().get(0));
assertEquals(p3, doc.getParagraphs().get(0));
assertEquals(p4, doc.getBodyElements().get(1));
assertEquals(p4, doc.getParagraphs().get(1));
// Remove the last
assertEquals(true, doc.removeBodyElement(1));
assertEquals(1, doc.getParagraphs().size());
assertEquals(1, doc.getBodyElements().size());
assertEquals(p3, doc.getBodyElements().get(0));
assertEquals(p3, doc.getParagraphs().get(0));
}
}