underline cont

This is a continuation of the question below.

Basically I discovered its no problem at all to draw lines or shapes or whatever directly onto an mx:Text object using its graphics property (Text.graphics.lineTo, etc.). If just displaying that text, then any such drawn lines are displayed as well. However, if that Text object is used as a mask, then any drawn lines on that text obje开发者_运维知识库ct are merely ignored when the mask is rendered.

And its hard for me to see the reason behind this, if anyone else is able to. I mean you're designating the Text object itself as the mask. It seems like any visual change to that text object should be part of the mask.

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The graphics.lineTo method doesn't appear to create a mask regardless of where it is called.

However, calling

 txt1.graphics.beginFill(0);
 txt1.graphics.drawRect(...)  //(where the Rectangle is thin enough to be a line)
 txt1.graphics.endFill();

does in fact work as a mask, (adding the shape to the actual text which then collectively form a mask). (But the coordinates of the rectangle are scaled by whatever txt1.scaleX,scaleY is currently so that has to be considered as well.)