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Re: subclassing LineEdit is ugly [message #2368 is a reply to message #2366]

Sun, 09 April 2006 22:11

mirek
Messages: 14266
Registered: November 2005

Ultimate Member

hojtsy wrote on Sun, 09 April 2006 15:46

I am trying to subclass LineEdit, to create some kind of terminal window, where the user can only enter after the last character of the text.

Well, I would rather solved that by putting LineEdit to readonly mode, used it as child of my real Ctrl and feeded characters from outside (using Insert/Remove). See how Console is done in TheIDE.... (but maybe look for pre-603 version, adding HYDRA support made it much more complicated).

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It seems quite much possible, but the resulting code would have lot of copy-paste from library code. It would be much easier to subclass LineEdit after the following desired modifications:

1) make these methods virtual, so that I can replace them:
PlaceCaretNoG
InsertChar
DeleteChar
Backspace
AlignChar

2) Extract to a new virtual method this last part of LineEdit::Key, so that I can replace this code in a subclass.

Ah, well, but where this should stop? Should we make all methods everywhere public and virtual? Smile

Quote:

Additionally please correct the error in the quoted code that WhenBar hotkeys are not working in read-only LineEdits.

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Hopefuly fixed.

Mirek

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