Sinhala support - Sri Lanka

Question

Hi,
I am working on a project at the moment which has the requirement to be localised into Sinhala.
We are working with AS3, CS5 and the TLF, the text is being loaded in XML format.  We are using the font Iskoola Pota.
I have a sample piece of text in xml, I load it in and set the text property of a Textfield instance to the loaded text. The Zero-Width-Joiners (ZWJ) are NOT removed and the glyphs combine correctly (as per the XML), however the line breaks (Text Field wraps the text) in the middle of a word where ZWJ/ZWNJ are present.  The wrapping is what I expect to see as I am purley setting the text property of a clasic text field.
When I use TLF to create TextLine instances and add them to my container, the text breaks correctly - i.e. not in the middle of the word - however the ZWJs are removed causing the letters to be displayed individually (not joined).
This is the AS I am using for reference:
// create a line starting at the previous line (null, as non existant) and breaking at the width
                    var textLine:TextLine = textBlock.createTextLine(null, lineWidth);               
                    while (textLine)
                              // position the x
                              if (align == TextFormatAlign.CENTER) {
                                        // place this x at x location of the orig textfield + half its width minus half the textWidth of the new line
                                        textLine.x = (xPos + (lineWidth / 2)) - (textLine.textWidth / 2);
                              } else if (align == TextFormatAlign.LEFT) {
                                        // place this x at x location of the orig textfield
                                        textLine.x = xPos;
                              } else {
                                        // place this x at x location of the orig textfield + its width minus the textWidth of the new line
                                        textLine.x = (xPos + lineWidth) - textLine.textWidth;
                              // add the height of the text
                              yPos += textLine.height;
                              // if not the first line, add some space down
                              if (textLine.previousLine != null) {
                                        yPos += iVerticalLineSpacer;
                              } else {
                                        //add 12%
                                        // TODO - need to come up with a better solution here
                                        yPos += textLine.height * 0.12;
                              // position the y
                              textLine.y = yPos;
                              // add to sprite
                              container.addChild(textLine);
                              // create a line starting at the previous line (textLine) and breaking at the width
                              textLine = textBlock.createTextLine(textLine, lineWidth);                         
Does anyone have any insight into how to go about solving this issue?
Thanks for your time,
Dave

Answer 1

Hi daithi,
I can not quite understand your issue, could you please show you complement code, so I can see the effect of your issue, thanks. By the way, you use the FTE actually, not TLF.
I am not sure is this your case bellow?
package{
    import flash.display.Sprite;
    import flash.text.TextFormatAlign;
    import flash.text.engine.ElementFormat;
    import flash.text.engine.FontDescription; 
    import flash.text.engine.FontLookup; 
    import flash.text.engine.TextBlock; 
    import flash.text.engine.TextElement; 
    import flash.text.engine.TextLine; 
    public class Forum extends Sprite
        [Embed(mimeType="application/x-font", exportSymbol="iskpota", embedAsCFF="true", source="iskpota.ttf", fontName="iskpota")]
        private const iskpota:Class;
        public function Forum()
                var xPos:int = 0;
                var yPos:int;
                var align:String;
                var textBlock:TextBlock = new TextBlock();
                var lineWidth:int = 200;
                textBlock.content = new TextElement(
                    String.fromCharCode(
                        0x5185, 0x200D, 0x95A3, 0x5E9C, 0x304C, 0x300C, 0x653F, 0x5E9C, 0x30A4,
                        0x30F3, 0x30BF, 0x30FC, 0x30CD, 0x30C3, 0x30C8, 0x30C6, 0x30EC,
                        0x30D3, 0x300D, 0x306E, 0x52D5, 0x753B, 0x914D, 0x4FE1, 0x5411,
                        0x3051, 0x306B, 0x30A2, 0x30C9, 0x30D3, 0x30B7, 0x30B9, 0x30C6,
                        0x30E0, 0x30BA, 0x793E, 0x306E
                var elementFormat:ElementFormat = new ElementFormat();
                var font:FontDescription = new FontDescription();
                font.fontLookup = FontLookup.EMBEDDED_CFF;
                font.fontName = "Iskpota";
                elementFormat.fontDescription = font;
                textBlock.content.elementFormat = elementFormat;
                // create a line starting at the previous line (null, as non existant) and breaking at the width
                var textLine:TextLine = textBlock.createTextLine(null, lineWidth);
                while (textLine)       
                       // position the x
                       if (align == TextFormatAlign.CENTER)
                          // place this x at x location of the orig textfield + half its width minus half the textWidth of the new line
                            textLine.x = (xPos + (lineWidth / 2)) - (textLine.textWidth / 2);
                       } else if (align == TextFormatAlign.LEFT)
                         // place this x at x location of the orig textfield                           
                              textLine.x = xPos;
                       } else
                     // place this x at x location of the orig textfield + its width minus the textWidth of the new line
                            textLine.x = (xPos + lineWidth) - textLine.textWidth;
                      // add the height of the text
                       yPos += textLine.height;
                     // if not the first line, add some space down
                        if (textLine.previousLine != null)
//                        yPos += iVerticalLineSpacer;
                        yPos += textLine.height * 0.12;
                       } else
                       //add 12%
                     // TODO - need to come up with a better solution here
                              yPos += textLine.height * 0.12;
                    // position the y
                         textLine.y = yPos;
                     // add to sprite
                        this.addChild(textLine);
                     // create a line starting at the previous line (textLine) and breaking at the width
                         textLine = textBlock.createTextLine(textLine, lineWidth);