嵌入粗体字体as3

Question

我在使用 FB4 嵌入粗体字体时遇到问题。我使用 TextLayout 字段和 TextLayoutFormat 来执行此操作，我的代码如下：

package
{
import flash.display.Sprite;
import flash.text.AntiAliasType;
import flash.text.Font;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.text.engine.FontLookup;

import flashx.textLayout.container.ContainerController;
import flashx.textLayout.elements.ParagraphElement;
import flashx.textLayout.elements.SpanElement;
import flashx.textLayout.elements.TextFlow;
import flashx.textLayout.formats.TextLayoutFormat;

public class FontEmbedding extends Sprite
{
    [Embed(source='TAHOMA.ttf', fontName='Tahoma', embedAsCFF="true")]
    private var _fontTahoma:Class;
    private const TAHOMA:String = "Tahoma";

    [Embed(source='TAHOMA.ttf', fontWeight = FontWeight.BOLD, fontName='Tahoma Bold', embedAsCFF="true")]
    private var _fontTahomBold:Class;
    private const TAHOMA_BOLD:String = "Tahoma Bold";

    public function FontEmbedding()
    {           
        this.textLayout();
    }

    private function textLayout():void
    {
        var textLayoutFormat:TextLayoutFormat = new TextLayoutFormat();
        textLayoutFormat.fontLookup = FontLookup.EMBEDDED_CFF;
        textLayoutFormat.fontFamily = TAHOMA_BOLD;
        textLayoutFormat.fontSize = 32;

        var textFlow:TextFlow = new TextFlow();
        var paragraphElement:ParagraphElement = new ParagraphElement();
        textFlow.addChild(paragraphElement);

        var span:SpanElement = new SpanElement();
        span.text = "This is an example";
        paragraphElement.addChild(span);

        textFlow.format = textLayoutFormat;

        var containerController:ContainerController = new     ContainerController(this, 400, 100);
        textFlow.flowComposer.addController(containerController);
        textFlow.flowComposer.updateAllControllers();
    }
}
}

字体仅正常显示，'fontWeight' 属性被忽略。有什么想法将不胜感激吗？

Answer 1

这段代码对我有用，无论是否使用 textLayoutFormat.fontWeight = FontWeight.BOLD; 行。

package
{
    import flash.display.Sprite;
    import flash.text.AntiAliasType;
    import flash.text.Font;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.text.TextFormat;
    import flash.text.engine.FontLookup;
    import flash.text.engine.FontWeight;

    import flashx.textLayout.container.ContainerController;
    import flashx.textLayout.elements.ParagraphElement;
    import flashx.textLayout.elements.SpanElement;
    import flashx.textLayout.elements.TextFlow;
    import flashx.textLayout.formats.TextLayoutFormat;

    public class FontEmbedding extends Sprite
    {
        [Embed(source='ChaparralPro-Bold.otf', fontWeight = FontWeight.BOLD, fontName='ChaparralPro-Bold', embedAsCFF="true")]
        private var _fontGillSans:Class;
        private const FONT_CHAP:String = "ChaparralPro-Bold";

        public function FontEmbedding()
        {           
            this.textLayout();
        }

        private function textLayout():void
        {
            var textLayoutFormat:TextLayoutFormat = new TextLayoutFormat();
            textLayoutFormat.fontLookup = FontLookup.EMBEDDED_CFF;
            textLayoutFormat.fontFamily = FONT_CHAP;
            textLayoutFormat.fontSize = 32;
            textLayoutFormat.fontWeight = FontWeight.BOLD;

            var textFlow:TextFlow = new TextFlow();
            var paragraphElement:ParagraphElement = new ParagraphElement();
            textFlow.addChild(paragraphElement);

            var span:SpanElement = new SpanElement();
            span.text = "This is an example";
            paragraphElement.addChild(span);

            textFlow.format = textLayoutFormat;

            var containerController:ContainerController = new     ContainerController(this, 400, 100);
            textFlow.flowComposer.addController(containerController);
            textFlow.flowComposer.updateAllControllers();
        }
    }
}

Answer 2

应用粗体字体肯定存在问题。

如果您稍后在代码中的某个位置动态更新文本，则以下代码中的字体不会设置为粗体。

var myTextFormat:TextFormat = new TextFormat();
myTextFormat.font = "Arial";
myTextFormat.bold = true;
myTextField.setTextFormat(myTextFormat);

//
myTextField.text = "some dynamic text";

相反，您需要在每次更新文本时应用文本格式。

var myTextFormat:TextFormat = new TextFormat();
myTextFormat.font = "Arial";
myTextFormat.bold = true;

//
myTextField.text = "some dynamic text";
myTextField.setTextFormat(myTextFormat);

但是，我通常将其设置为默认字体，如下所示，

var myTextFormat:TextFormat = new TextFormat();
myTextFormat.font = "Arial";
myTextFormat.bold = true;
myTextField.defaultTextFormat = myTextFormat;

//
myTextField.text = "some dynamic text";

这不是健壮项目的完美方法，但它有效。

报告此问题，
bugs.adobe.com

Answer 3

var myFormat:TextFormat = new TextFormat();
myFormat.color = 0x000000;
myFormat.font = "Arial Bold";
myFormat.bold = true;
txt.defaultTextFormat = myFormat;