Re: calculate line height?

Author

Message

Sergey Tkachenko

Posted: 12/29/2002 20:21:32

Canvas.TextHeight should work.

> I'm working on a text-based editor that uses special text-based

> formatting for paragraph borders. For example a paragraph will have a

> top and bottom border using ========== or some user specified

> character.

> I learned that I can create a style component that inherits from

> TRVStyle for the new properties and then use the custom-drawing events

> to draw the borders. I will set the SpaceBefore and SpaceAfter to make

> room for drawn borders.

> My question is since I need the editor to look as much like a simple

> text file (text borders are automatic) I need the space used for

> borders to be the same height as the text line height. How do I

> calculate the line height? I want to dynamically calculate the

> SpaceBefore and SpaceAfter to get the value of one line height. I

> assume it is a little more that what I get from Canvas.TextHeight but

> I don't know how to get the exact value.

> Any ideas?