Truncate the text after the first line in TextFlow

I have a TextFlow object that is rendered in a Sprite with several lines.

For a compact display, I now want to show only the first line, followed by 3 dots (...).

I've not found a good approach up to now.

There is a support for truncation. It is limited to cases of use of label and requires the use of the TextLine factories. There is no support for text editable with truncation. Example below.

Hope that helps,

Richard


NOTICE:  Adobe permits you to use, modify, and distribute this file

    in accordance with the terms of the Adobe license agreement

    accompanying it.  If you have received this file from a source

    other than Adobe, then your use, modification, or distribution

    of it requires the prior written permission of Adobe.

    */

    package

    {

        import flash.display.DisplayObject;

        import flash.display.Sprite;

        import flash.display.StageAlign;

        import flash.display.StageScaleMode;

        import flash.geom.Rectangle;

        import flash.text.StyleSheet;

        import flash.utils.ByteArray;

       

        import flashx.textLayout.container.ContainerController;

        import flashx.textLayout.conversion.TextConverter;

        import flashx.textLayout.elements.TextFlow;

        import flashx.textLayout.formats.TextLayoutFormat;

        import flashx.textLayout.factory.StringTextLineFactory;

        import flashx.textLayout.factory.TextFlowTextLineFactory;

        import flashx.textLayout.factory.TruncationOptions;

       

        [SWF(width="500", height="500")]

        public class Truncation extends Sprite

        {

           

            public function Truncation()

            {

                stage.align = StageAlign.TOP_LEFT;

                stage.scaleMode = StageScaleMode.NO_SCALE;

               

                // sample of truncation with the StringFactory

                var stringFactory:StringTextLineFactory = new StringTextLineFactory();

                var stringSprite:Sprite = new Sprite();

                stringSprite.x = 25; stringSprite.y = 25; addChild(stringSprite);

                // this bounds has no maximum height

                stringFactory.compositionBounds = new Rectangle(0,0,200,NaN);

                stringFactory.text = "This is an extremely long and overly verbose string of text that I would like to see trunctated.";

                // truncate after two lines

                stringFactory.truncationOptions = new TruncationOptions(TruncationOptions.HORIZONTAL_ELLIPSIS,2);

                stringFactory.createTextLines(function (obj:DisplayObject):void { stringSprite.addChild(obj); });

               

                // sample of truncation with the TextFlowTextLineFactory

                var flowFactory:TextFlowTextLineFactory = new TextFlowTextLineFactory();

                var flowSprite:Sprite = new Sprite();

                flowSprite.x = 25; flowSprite.y = 75; addChild(flowSprite);

                // this bounds has no maximum height

                flowFactory.compositionBounds = new Rectangle(0,0,200,NaN);

                // truncate after three lines with a big red ellipsis

                flowFactory.truncationOptions = new TruncationOptions(TruncationOptions.HORIZONTAL_ELLIPSIS,3,TextLayoutFormat.createTextLayoutFormat({ fontSize:24, lineHeight:0, color:0xff0000 }));

                flowFactory.createTextLines(function (obj:DisplayObject):void { flowSprite.addChild(obj); },TextConverter.importToFlow(Data.markup, TextConverter.TEXT_LAYOUT_FORMAT));

            }

        }

    }

    class Data

    {

        public static const markup:String = "" +

            "
The following excerpt is from Ethan Brand by Nathaniel Hawthorne.
" +

            "There are many such lime-kilns in that tract of country, for the purpose of burning the white marble which composes" +

            " a large part of the substance of the hills. Some of them, built years ago, and long deserted, with weeds growing in the vacant round of the interior, which is open to the sky," +

            " and grass and wild-flowers rooting themselves into the chinks of the stones, look already like relics of antiquity, and may yet be overspread with the lichens of centuries to come." +

            " Others, where the lime-burner still feeds his daily and nightlong fire, afford points of interest to the wanderer among the hills, who seats himself on a log of wood or a fragment " +

            "of marble, to hold a chat with the solitary man. It is a lonesome, and, when the character is inclined to thought, may be an intensely thoughtful occupation; as it proved in the case " +

            "of Ethan Brand, who had mused to such strange purpose, in days gone by, while the fire in this very kiln was burning.
The man who now watched the fire was of a " +

            "different order, and troubled himself with no thoughts save the very few that were requisite to his business. At frequent intervals, he flung back the clashing weight of the iron door, " +

            "and, turning his face from the insufferable glare, thrust in huge logs of oak, or stirred the immense brands with a long pole. Within the furnace were seen the curling and riotous flames, " +

            "and the burning marble, almost molten with the intensity of heat; while without, the reflection of the fire quivered on the dark intricacy of the surrounding forest, and showed in the " +

            "foreground a bright and ruddy little picture of the hut, the spring beside its door, the athletic and coal-begrimed figure of the lime-burner, and the half-frightened child, shrinking " +

            "into the protection of his father's shadow. And when again the iron door was closed, then reappeared the tender light of the half-full moon, which vainly strove to trace out the " +

            "indistinct shapes of the neighboring mountains; and, in the upper sky, there was a flitting congregation of clouds, still faintly tinged with the rosy sunset, though thus far down " +

            "into the valley the sunshine had vanished long and long ago.
";

    }

Tags: Adobe Open Source

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