[Newbies] How to make a PluggableTextMorph read-only?

[Steve Wessels]

Daniel,

Actually, I know I solved this problem when I wrote eIRC for Squeak.  I don't have access to a computer system with Squeak development installed, so I cannot just quickly look up the code.

The most useful skill you can have when programming, in Squeak, Smalltalk, or any other development language, is what I've sometimes called "Code Archeology".  You should be able to take steps to read that source package whether it's compatible or not.  It's been some time since I've worked in Croquet, so I may be mistaken on some details, but you should be able to save your existing work in such a way that you can still install eIRC (if in fact it's not compatible), peruse the code for ideas, and then exit/quit your environment.  In this way you wouldn't change your working image.

Sorry, I'm not able to just directly answer your question.  My memory about the solution is that you will either find a protocol for the text pane, or it's controller, that can make it read-only, or you could simply subclass the pane and it's controller to add unique behavior like that.  I think the subclass technique is what I did because it gave me the added flexibilty of accepting some user keystrokes.  User keystrokes of up and down arrow and page keys are useful inputs, for example.  Copy and Paste key actions may also be desired.

I know I solved this kind of issue for eIRC several years ago, but can only describe the process or concept I used from memory.  

Cheers,
- Steve

On Dec 8, 2008, at 2:25 PM, Daniel Taschik <Daniel.Taschik at student.hpi.uni-potsdam.de> wrote:

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Hi Steve,

thanks for your quick response. But unfortunatly I can't install eIRC because it is probably to old. I am using Croquet 1.0.

Maybe you could explain me what the eIRC does to make his pluggable TextMorph read-only if it runs at your Computer.

Kind regards,

Daniel Taschik

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mail: daniel.taschik at student.hpi.uni-potsdam.de
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On 08.12.2008, at 13:30, Steve Wessels wrote:

Look at the code used in eIRC

- Steve

On Dec 8, 2008, at 6:27 AM, Daniel Taschik <daniel.taschik at student.hpi.uni-potsdam.de> wrote:

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Hi Folks,

I'm working on a project at my University and we develop a TetriNet Client with Squeak. We have a small problem on how to make a PluggableTextMorph read-only. The Morph shall display the log of the internal Chat.

Can anyone tell me how to force him to just display the text so that nobody can write in it?

Tanks a alot!

Daniel Taschik

- --
mail: daniel.taschik at student.hpi.uni-potsdam.de
web: www.taschik.com
mobile: +49 162 7604429
skype: danieltaschik
icq: 106018852
jabber: daniel.taschik at googlemail.com

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