QPlainTextEdit的文本宽度

Question

I have a QPlainTextEdit widget that fills a portion of my window. The user can resize the window, therefore the area consumed by the QPlainTextEdit widget can vary.

I would like to know how I can determine, at runtime, what are the maximum number of characters I can write to the text area before the horizontal scroll bar will appear.

I am displaying columns of text that I will truncate to a maximum per column width. However, I only want to truncate columns if the total untruncated width of all columns will produce a scroll bar.

In other words, if the total text doesn't fill the text area horizontally, there's no value in truncating any part of said text.

Answer 1

使用QFontMetrics :: width可以帮助您确定文本的大小