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Avoid truncated characters with italic style
I've found that the same thing happens to me if my current copy mode is set to _srcCopy at the time I open the edit field. The problem goes away if I set the copy mode to _srcOr before opening the field.
I think the problem happens because italic letters are drawn in a "parallelogram" rather than a rectangle. Part of the parallelogram is intersecting with the rectangle in which the following (non-italic) character is drawn. If that non-italic character is drawn in _srcCopy mode, then all the background pixels in its rectangle are "whited-out," including the part that intersects with the italic char's parallelogram.
Bill wrote:
<< All I can figure is that the styl resource doesn't include the copy mode, so the copy mode carries through. >>
That in fact seems to be the case. When this question first came up, I took a look at what information TextEdit stores in style records. It stores Font ID ("family" number), size, character style and color. But not copy mode.
Rick