Bit of refactoring - move child records into parent RecordContainer

class, so we can then have more generic child record modification code


git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353790 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hslf/model/TextRun.java

@@ -135,6 +135,9 @@ public class TextRun
 			throw new IllegalArgumentException("Supplied RichTextRun wasn't from this TextRun");
 		}
 		
+		// Ensure a StyleTextPropAtom is present, adding if required
+		ensureStyleAtomPresent();
+		
 		// Update the text length for its Paragraph and Character stylings
 		LinkedList pStyles = _styleAtom.getParagraphStyles();
 		LinkedList cStyles = _styleAtom.getCharacterStyles();
@@ -191,6 +194,27 @@ public class TextRun
 		_rtRuns[0] = new RichTextRun(this,0,s.length());
 	}
 
+	/**
+	 * Ensure a StyleTextPropAtom is present for this run, 
+	 *  by adding if required
+	 */
+	private synchronized void ensureStyleAtomPresent() {
+		if(_styleAtom != null) {
+			// All there
+			return;
+		}
+		
+		// Create a new one
+		_styleAtom = new StyleTextPropAtom(0);
+		
+		// Use the TextHeader atom to get at the parent
+		RecordContainer runAtomsParent = _headerAtom.getParentRecord();
+		
+		// Add the new StyleTextPropAtom after the TextCharsAtom / TextBytesAtom
+		Record addAfter = _byteAtom;
+		if(_byteAtom == null) { addAfter = _charAtom; }
+		runAtomsParent.addChildAfter(_styleAtom, addAfter);
+	}
 
 	// Accesser methods follow
 

src/scratchpad/src/org/apache/poi/hslf/record/DummyPositionSensitiveRecordWithChildren.java

@@ -37,7 +37,6 @@ import java.io.ByteArrayOutputStream;
 
 public class DummyPositionSensitiveRecordWithChildren extends PositionDependentRecordContainer
 {
-	private Record[] _children;
 	private byte[] _header;
 	private long _type;
 
@@ -60,11 +59,6 @@ public class DummyPositionSensitiveRecordWithChildren extends PositionDependentR
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * Return any children 
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk

src/scratchpad/src/org/apache/poi/hslf/record/DummyRecordWithChildren.java

@@ -33,7 +33,6 @@ import java.io.ByteArrayOutputStream;
 
 public class DummyRecordWithChildren extends RecordContainer
 {
-	private Record[] _children;
 	private byte[] _header;
 	private long _type;
 
@@ -55,11 +54,6 @@ public class DummyRecordWithChildren extends RecordContainer
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * Return any children 
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk

src/scratchpad/src/org/apache/poi/hslf/record/EscherTextboxWrapper.java

@@ -37,7 +37,6 @@ import java.io.ByteArrayOutputStream;
 public class EscherTextboxWrapper extends RecordContainer
 {
 	private EscherTextboxRecord _escherRecord;
-	private Record[] _children;
 	private long _type;
 
 	/**
@@ -63,11 +62,6 @@ public class EscherTextboxWrapper extends RecordContainer
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * Return any children 
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Stores the data for the child records back into the Escher layer.
 	 * Doesn't actually do the writing out, that's left to the Escher

src/scratchpad/src/org/apache/poi/hslf/record/FontCollection.java

@@ -30,7 +30,6 @@ import java.util.*;
 
 public class FontCollection extends RecordContainer {
     private List fonts;
-	private Record[] _children;
 	private byte[] _header;
 
 	protected FontCollection(byte[] source, int start, int len) {
@@ -48,14 +47,13 @@ public class FontCollection extends RecordContainer {
 
 	}
 
+	/**
+	 * Return the type, which is 2005
+	 */
 	public long getRecordType() {
         return RecordTypes.FontCollection.typeID;
     }
 
-	public Record[] getChildRecords() {
-        return _children;
-    }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk

src/scratchpad/src/org/apache/poi/hslf/record/Notes.java

@@ -32,7 +32,6 @@ import java.io.ByteArrayOutputStream;
 
 public class Notes extends PositionDependentRecordContainer
 {
-	private Record[] _children;
 	private byte[] _header;
 	private static long _type = 1008l;
 
@@ -80,11 +79,6 @@ public class Notes extends PositionDependentRecordContainer
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * Return any children 
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk

src/scratchpad/src/org/apache/poi/hslf/record/RecordContainer.java

@@ -34,6 +34,13 @@ import java.io.ByteArrayOutputStream;
 
 public abstract class RecordContainer extends Record
 {
+	protected Record[] _children;
+	
+	/** 
+	 * Return any children 
+	 */
+	public Record[] getChildRecords() { return _children; }
+
 	/** 
 	 * We're not an atom
 	 */
@@ -50,6 +57,34 @@ public abstract class RecordContainer extends Record
 		return r;
 	}
 	
+	/**
+	 * Adds the given Child Record after the supplied record
+	 * @param newChild
+	 * @param after
+	 */
+	public synchronized void addChildAfter(Record newChild, Record after) {
+		boolean added = false;
+		Record[] newChildren = new Record[_children.length+1];
+		for(int i=0; i<_children.length; i++) {
+			int newPos = i;
+			if(added) { newPos++; }
+			
+			newChildren[newPos] = _children[i];
+			if(_children[i].equals(after)) {
+				// Found one to add after
+				added = true;
+				newPos++;
+				newChildren[newPos] = newChild;
+			}
+		}
+		
+		if(added) {
+			_children = newChildren;
+		} else {
+			throw new IllegalArgumentException("Asked to add a new child after another record, but that record wasn't one of our children!");
+		}
+	}
+
 	/**
 	 * Write out our header, and our children.
 	 * @param headerA the first byte of the header

src/scratchpad/src/org/apache/poi/hslf/record/Slide.java

@@ -32,7 +32,6 @@ import java.io.ByteArrayOutputStream;
 
 public class Slide extends PositionDependentRecordContainer
 {
-	private Record[] _children;
 	private byte[] _header;
 	private static long _type = 1006l;
 
@@ -80,11 +79,6 @@ public class Slide extends PositionDependentRecordContainer
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * Return any children 
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk

src/scratchpad/src/org/apache/poi/hslf/record/SlideListWithText.java

@@ -49,7 +49,6 @@ import java.util.Vector;
 // For now, pretend to be an atom
 public class SlideListWithText extends RecordContainer
 {
-	private Record[] _children;
 	private byte[] _header;
 	private static long _type = 4080;
 
@@ -109,11 +108,6 @@ public class SlideListWithText extends RecordContainer
 	 */
 	public long getRecordType() { return _type; }
 
-	/** 
-	 * We're pretending to be an atom, so return null
-	 */
-	public Record[] getChildRecords() { return _children; }
-
 	/**
 	 * Write the contents of the record back, so it can be written
 	 *  to disk