REPORT-23453 html切割时，丢失<br> 标签

fine-itext/src/com/fr/third/v2/lowagie/text/pdf/PdfChunk.java

@@ -88,6 +88,12 @@ public class PdfChunk {
 
     private static final float FONT_SCALE = 100f;
 
+    private static final String BREAK = "\n";
+
+    private static final String BREAK_TAG = "<br>";
+
+    private boolean breakTag = false;
+
     public float getHeight() {
         return height;
     }
@@ -200,6 +206,7 @@ public class PdfChunk {
     PdfChunk(String string, PdfChunk other) {
         thisChunk[0] = this;
         value = string;
+        updateBreakTag();
         this.font = other.font;
         this.attributes = other.attributes;
         this.noStroke = other.noStroke;
@@ -218,7 +225,7 @@ public class PdfChunk {
         this.height = other.getHeight();
     }
 
-/**
+    /**
  * Constructs a <CODE>PdfChunk</CODE>-object.
  *
  * @param chunk the original <CODE>Chunk</CODE>-object
@@ -228,7 +235,7 @@ public class PdfChunk {
     public PdfChunk(Chunk chunk, PdfAction action) {
         thisChunk[0] = this;
         value = chunk.getContent();
-        
+        updateBreakTag();
         Font f = chunk.getFont();
         float size = f.getSize();
         if (size == Font.UNDEFINED)
@@ -798,7 +805,7 @@ public class PdfChunk {
         htmlString.append("<span style='");
         htmlString.append(getStyleAttributes()).append("'");
         htmlString.append(">");
-        htmlString.append(value);
+        htmlString.append(breakTag ? BREAK_TAG : value);
         htmlString.append("</span>");
         return htmlString.toString();
     }
@@ -856,4 +863,12 @@ public class PdfChunk {
         return indent.getLeft();
     }
 
+    private void updateBreakTag() {
+        breakTag = BREAK.equals(value);
+    }
+
+    public boolean isBreakTag() {
+        return breakTag;
+    }
+
 }

fine-itext/src/com/fr/third/v2/lowagie/text/pdf/PdfLine.java

@@ -94,6 +94,8 @@ public class PdfLine {
 
     protected boolean isRTL = false;
 
+
+
     public float getHeight() {
         return height;
     }
@@ -155,7 +157,13 @@ public class PdfLine {
     public PdfChunk add(PdfChunk chunk) {
         // nothing happens if the chunk is null.
         if (chunk == null || chunk.toString().equals("")) {
-        	return null;
+            return null;
+        }
+        //  add to line if the chunk is break tag ("\n")
+        if (chunk.isBreakTag()) {
+            addToLine(chunk);
+            width = 0;
+            return null;
         }
 
         // we split the chunk to be added