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Questions tagged [incr-tcl]

[incr Tcl] is an object system package for the Tcl programming language.

[incr Tcl] (often abbreviated to “itcl” for ease of typing) is an object system for Tcl. It is usually used as an extension package — loaded with package require Itcl — and was originally developed for Tcl 7.* but which has been updated subsequently for the faster Tcl 8 system model. It provides a model of objects that is a hybrid between the command-focussed model of Tcl and the class model of (pre-template) C++. It is probably the most commonly used object system for Tcl, though many others exist.

Itcl also has the distinction of having inspired a number of features in the core Tcl language. These notably include namespaces and ensembles, as well as the TclOO object system that is present from Tcl 8.6 onwards. Note that a version of [incr Tcl] (4.0) is also supplied with Tcl 8.6 so as to make it far easier for existing code that depends on itcl, and that is built on top of the TclOO core.

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Is there a way to make [incr Tcl] classes friends?

Is there a way to obtain a friendship between classes in incr Tcl? Consider the code below. package require Itcl ::itcl::class A { private { proc f { } { puts "==== A::f" } } } ::itcl::class B { public { …
Vahagn
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Can't hide constructor at [incr Tcl]

Consider the code below. package require Itcl ::itcl::class A \ { private { constructor { } { } { puts "==== at A::constructor" } method f { } { puts "==== at A::f" } } } A a ;# PASSES a f ;# fails For class A the constructor is…
Vahagn
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Access Itcl Class Scope in Tcl Thread

First of all, this is a follow up to a previous question of mine. I would like to use threading in Tcl but in collaboration with Itcl. Here is a sample: package require Itcl package require Thread ::itcl::class ThreadTest { variable thread…
elmt
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::itcl::delete throws error "invalid command name"

I am using itcl delete command to delete objects and classes. However, tcl interpreter says "invalid command name "delete". Here is the partial code snippet. % itcl::find classes datapath point datapath_point itcl::find objects datapath_point0…
boppu
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Why -editable is not working in iwidgets (tcl/tk)?

I was trying to use iwidgets in some GUI and I want to make combobox non-editable. As per activetcl documentation, the -editable option is mentioned for combobox and yet it is not working. combobox $frm_sat1.c2 \ -textvariable [itcl::scope type]…
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change the iwidgets::combobox selected value tcl/tk

How to change the iwidgets::combobox selected value in tcl/tk? variable check [iwidgets::combobox .check -labeltext "aaaa" -selectioncommand aaa_update] eval .check insert list 0 aaa bbb I tried the following and it doesn't work. (set…
Ahmed Ramadan
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Tcl: Setting a private variable of an owned instance within a class

Suppose the following code declarations: itcl::class ObjectA { private variable m_ownedObject private variable m_someVariable constructor {} \ { set m_ownedObject [ObjectA #auto] } protected method SetSomeVariable…
Jordan
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Hierarchical structure of classes object with Incr Tcl

I'm trying to implement a hierarchical structure of classes/subclasses objects such as: |-- Class1 # mainClass | |-- SubClassA # subClass | `-- SubClassB # subClass `-- Class2 # mainClass …
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Tcl error: command already exists in namespace "::"

What means this error? command already exists in namespace "::" Can you provide simple case when this error raises?
Ashot
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How to dynamically add methods to a class in [incr-tcl]

In Incr Tcl, I receive a gain in programming productivity via changing and then re-eval'ing a class's methods into a running Tcl interpreter, without restarting the application. To do that, I have to define the methods outside of the class…
bgoodr
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