Hi All Arthur van Leeuwen wrote: > On 18-feb-2007, at 18:23, Mads Lindstrøm wrote: > > > Hi all > > > > I have created a text-control and I want to know which character the > > mouse is hovering over. Getting the mouse position is easy enough. > > However converting the mouse position to a character index (into the > > text-control's text) seems very difficult. > > > > Anybody knows how to go from mouse position to character index? > > First, you need to get a hold of the TextCtrl. Then on that > you can use textCtrlPositionToXY to get the x- and y- coordinate of the > character in character increments. textCtrlPositionToXY is in WXCore.
textCtrlPositionToXY get the character position. That is, in the text: ab c def a, b, c, d, e, and f will have character positions (0,0), (1,0), (0,1), (0,2), (1,2), and (2,2) respectively. When I wrote the mouse position, I was referring to the bitmap position on the canvas (on which the characters are drawn) - I should have been a bit more precise there. I get this position by capturing mouse events by: set textCtrl [ on mouse := ... ] > > One tip: try searching the wxWidgets docs first when trying to figure > out how to do stuff. For me it tends to lead me to the result quicker > than > perusing just the wxHaskell docs. Good point. > > With regards, Arthur van Leeuwen. > Kind regards, Mads Lindstrøm ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ wxhaskell-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/wxhaskell-users
