Use TextFlow in RichEditableText
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<!-- sparktextcontrols/SparkSelectionExample.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark">
<s:layout>
<s:VerticalLayout />
</s:layout>
<fx:Script>
import flashx.textLayout.elements.TextRange;
import flashx.textLayout.elements.*;
private function selectSomeText(e:Event):void {
/* Get the location of the cursor. This is the character position of the
cursor in the RichEditableText control after the user clicks on it. */
var activePos:int = richTxt1.selectionActivePosition;
/* Get the first SpanElement in the TextFlow. */
var leaf:SpanElement = new SpanElement();
leaf = SpanElement(richTxt1.textFlow.getFirstLeaf());
/* Get the start and end index values for the first SpanElement. */
var spanStart:int = leaf.getParagraph().parentRelativeStart;
var spanEnd:int = leaf.getParagraph().parentRelativeEnd;
/* For the first SpanElement, if the cursor position falls within the
SpanElement's character range, then select the entire SpanElement. */
if (activePos >= spanStart && activePos <= spanEnd) {
selectSpan(spanStart, spanEnd);
return;
}
/* Perform the same operations for each leaf in the TextFlow. */
while(leaf = SpanElement(leaf.getNextLeaf())) {
spanStart = leaf.getParagraph().parentRelativeStart;
spanEnd = leaf.getParagraph().parentRelativeEnd;
if (activePos >= spanStart && activePos <= spanEnd) {
selectSpan(spanStart, spanEnd);
return;
}
}
}
private function selectSpan(i1:int, i2:int):void {
richTxt1.selectRange(i1, i2);
}
</fx:Script>
<s:Panel>
<s:RichEditableText id="richTxt1" click="selectSomeText(event)"
selectable="true" editable="true" textAlign="justify"
percentWidth="100">
<s:textFlow>
<s:TextFlow>
<s:p>
<s:span>
1) Lorem ipsum dolor sit amet, consectetur
adipiscing elit.
</s:span>
</s:p>
<s:p>
<s:span>
2) Cras posuere posuere sem, eu congue orci mattis
quis.
</s:span>
</s:p>
<s:p>
<s:span>
3) Curabitur pulvinar tellus venenatis ipsum tempus
lobortis.
</s:span>
</s:p>
</s:TextFlow>
</s:textFlow>
</s:RichEditableText>
</s:Panel>
</s:Application>
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