HaikuDepot: TextDocument: Added Paragraph access by index.

src/apps/haiku-depot/textview/TextDocument.cpp

@@ -178,6 +178,15 @@ TextDocument::ParagraphAt(int32 textOffset, int32& paragraphOffset) const
 }
 
 
+const Paragraph&
+TextDocument::ParagraphAt(int32 index) const
+{
+	if (index >= 0 && index < fParagraphs.CountItems())
+		return fParagraphs.ItemAtFast(index);
+	return fEmptyLastParagraph;
+}
+
+
 bool
 TextDocument::Append(const Paragraph& paragraph)
 {

src/apps/haiku-depot/textview/TextDocument.h

@@ -5,6 +5,8 @@
 #ifndef TEXT_DOCUMENT_H
 #define TEXT_DOCUMENT_H
 
+#include <Referenceable.h>
+
 #include "CharacterStyle.h"
 #include "List.h"
 #include "Paragraph.h"
@@ -13,7 +15,7 @@
 typedef List<Paragraph, false>	ParagraphList;
 
 
-class TextDocument {
+class TextDocument : public BReferenceable {
 public:
 								TextDocument();
 								TextDocument(
@@ -56,6 +58,8 @@ public:
 			const Paragraph&	ParagraphAt(int32 textOffset,
 									int32& paragraphOffset) const;
 
+			const Paragraph&	ParagraphAt(int32 index) const;
+
 			bool				Append(const Paragraph& paragraph);
 
 private:
@@ -65,4 +69,7 @@ private:
 };
 
 
+typedef BReference<TextDocument> TextDocumentRef;
+
+
 #endif // TEXT_DOCUMENT_H