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- 07/24/96 Release 3.1
- --------------------
-
- - Version of Tk is now at Tk4.1 level.
-
- - STk run now on Win32!!!
- Some details need a little more work (some oddities on file names
- due to difference conventions between Unix and DOS, and things like
- that). No socket support and no dynamic loading on Win32
-
- - A complete documentation of STk widgets pages (both in nroff
- and HTML format). The help command really allow you to browse
- man pages now. Man pages are prefixed by "stk_" now to avoid confusion
- with original Tk manual pages.
-
- - STklos is now integrated to STk (it was dynamically loaded before).
- This simplify its implementation and speed up generic functions:
- o gf are now 2-4 time faster
- o gf are now tail recursive
- o the MOP for gf is now "public" (i.e. you can change the way
- gf are called in Scheme -- it was not possible with previous
- versions without using C).
-
- - Port implementation is different: A port contains now its
- input and output handler. New primitives to access the handler:
- when-port-readable and when-port-writable.
- BTW, The Tk function fileevent function is no more useful
- (it is written in Scheme now for compatibility, but its usage
- is deprecated). It may not be supported in a future release.
-
- - New composite widgets: <Multiple-window> and <Inner-window>
- which allow to have embedded windows. A multiple window
- has a task bar below and allow to iconify inner-windows.
- Some people think it looks like Win95 desktop ;-)
-
- - pixmap extension doesn't require anymore the Xpm library. Code
- is stolen from the Tix Library.
-
- - New socket code which allow multiple concurrent connection
-
- - Extended types can now have a compare function which is called
- when eqv? or equal? is called. This modification should be
- compatible with the previous extensions (I hope so)
-
- - STklos: Two new methods: object-eqv? and object-equal? which are
- called when applying eqv? or equal? to instances.
-
- - A rewriting of bind-for-dragging canvas method. You can now specify
- a :before-motion, which if it returns #f, forbid to move the selected
- canvas item.
-
- - New primitives:setenv!, posix-host-name, posix-domain-name,
- posix-uname
-
- - Option separator "--" allows to pass reserved keyword (sush as -help)
- to a script. Option and parameter cannot be mixed anymore
- (i.e. calling stk xyz -help ==> *argv* = ("xyz" "-help")
-
- - HTML browser enhancement (support of the <FONT> tag with SIZE
- and COLOR sub-tags. This must be compatible with the HTML spec.
-
- - and of course many many bug corrections.
-
-
- 01/22/96 Release 3.0 (also called 3.0b2 by error)
- ~~~~~~~~~~~~~~~~~~~~
- - Version of Tk is now at Tk4.0p2 level
-
- - Support Pixmap images
-
- - Strings can now contain null charters (printing of strings is more
- friendly now in write mode
-
- - Executable is now position independant(i.e. no path coded in hard in
- the interpreter). STK_LIBRARY shell variable is no more necessary. We
- can now make binary distributions.
-
- - Signal can now be redirected to Scheme closures. The end of a GC
- is seen as a signal.
-
- - Trace on variable are changed (and re-work now): the associated trace
- must be a thunk now.
-
- - New option for buttons, checkbuttons, radiobuttons and entries:
- :stringvalue.
- This options tells if the value must be stringified or not.
- For instance, with
- (radiobutton '.c :text "Try" :variable 'x :stringvalue #f :value 100)
- will set the "x" var to "100" whereas with
- (radiobutton '.c :text "Try" :variable 'x :stringvalue #t :value 100)
- value is set to the integer value 100
- Default value for :stringvalue is #t for entries and #f for check and
- radio buttons.
-
- - stk-wtour demo is updated for STk 3.0
-
- - In STklos, if a method M is defined and if it is already bound to
- a procedure, the old procedure is called when no method is applicable.
- Example:
- (define-method car ((x <integer>)) (- x 1))
- (car 10) ==> 9
- (car (cons 'a 'b)) ==> a
- As a consequence, this kind of method cannot call no-applicable-method
- if parameters are not valid:
- (car (vector 1 2)) ==> error car: wrong type of argument: #(1 2)
-
- - Small change in the STklos hierarchy. <widget> is now a subclass of
- <procedure> and its meta class is <procedure-metaclass>.
-
-
- 10/07/95 Release 3.0b1
- ~~~~~~~~~~~~~~~~~~~~~~
- A lot of modifications. Briefly,
- - Support of Tk4.0
- - Closures are fully supported by Tk. That means that a callback can be
- now a Scheme closure with its environment. GC problems with closures
- and usage of the dirty "address-of" are definitively gone.
- - HTML support (a browser is provided, should be extended to support
- all HTML2.0)
- - Documentation is now in HTML for the Tk commands (only a few commands
- are ready for now, but they will be all defined in a near future).
- - ....
-
-
- 07/15/95 Release 2.2
- ~~~~~~~~~~~~~~~~~~~~
-
- This is the last release with Tk 3.6. Next release will integrate Tk 4.0
-
- - Bug corrections
- - Changing Makefiles and configure files for better dynamic loading
- integration.
- - Adding support for BLT-1.7. This library can be loaded dynamically
- on system which support it
- - New option which permit to change the initial amount of cells
- - Uses really LESS memory.
- - New GC. Now we have a set of heaps and a new heap is allocated as
- soon as the global space is "nearly" filled.
- - SLIB support (just type (require "slib") and after that process as
- indicated in SLIB documentation
- - Integration of the Suresh Srinivas STk-wtour demo.
- - Adding support for Text in STklos: Definition of the <Text> class
- (and companion <Text-tag> class).
- - call/cc is now tail recursive. (Alas, methods and dynamic-wind are
- not yet tail recursive).
- - Better support for autoloading files
- - Adding support for an exec function a` la Tcl (i.e. execute of a
- unix process and keep its output in a Scheme string)
- - General run-process for running Unix process were std{in,out,err}
- can be redirected in files or in pipes.
- - Some code has been rewritten to ease STk porting
- - Adding support for regular expression pattern matching and
- replacement
- - There is now a light interpreter, called snow (for Scheme
- NO Window); this is in fact the STk interpreter without Tk support.
- This interpreter is an independant executable. It can be called
- with the `snow' shell-script or by unsetting the DISPLAY variable.
- - New organisation of intalled file to permit co-existence of
- several version of STk or multi-architecture file sharing
- - Dynamic loading support for NetBSD-1.0
- - Dynamic loading support for HP
- - Dynamic loading and dump support for FreeBsd.
- - Dynamic loading for Linux (using ELF format or the DLD package)
- - A mini interface builder (very simplistic, but usable)
- - New contributions: A true Tetris game, a 8 queens simulation and
- a demo of composite widgets.
- - Every exported identifier now starts with the string "STk_" to
- avoid name clashes when embedding the interpreter in an application.
- - BSD sockets support
- - Better integration with Emacs
- - AMIB (A Mini Interface Builder)
- - A lot of improvement in STklos
- - .....
-
- See the ChangeLog file for more information
-
- ==============================================================================
- ??/??/?? Release 2.1
- ~~~~~~~~~~~~~~~~~~~~
-
- This is a major release version.
-
- - STklos (the object layer) is now written in C. It is more than 150
- times faster than before and it uses less memory (~ 1/100)!!!!
- - Improvement of STklos
- - STklos classes have been written for all the Tk library widgets
- - Composites widgets can be easily defined in STklos. Access to those
- widgets is identical to C written one.
- - bindings can be now true lambda expression with their own
- environment (rather than list which are evaluated in the global
- environment).
- - Hash tables have been added.
- - Small constants are coded on a pointer rather than a cell
- - Support for dynamic loading on SunOs (4 and 5). Dynamic loading
- uses shared objects (it should work also on OSF1)
- - Dump creates now smaller images.
- - Modification of configure and Makefiles to correct of a lot
- of installation problems.
- - Runs on Solaris 2.3
- - Bugs corrections
- - Some modification to the error notifier
- - Support of dynamic loading of shared objects on Solaris 1 & 2 (it
- should work also on OSF1).
- - ...
-
- 94/01/03 Release 2.0
- ~~~~~~~~~~~~~~~~~~~~
-
- STk 2.0 contains a completly rewritten Scheme interpreter. This new
- interpreter is
- - R4RS
- - faster than previous release (~ 3 or 4 times)
- - less bugged (I hope :-) )
- - implements integers (32 bits and bignum) and floats
- - cleaner with macros
-
- This version contains also a prototype of a graphical inspector which
- permits to see/modify a variable value. For widgets variables it permits
- to modify interactively their behaviour. However, it doesn't yet contain
- a C rewritting of the object layer as it was planned. This will be done
- in a (probably the) next release.
-
- 93/09/02 Release 1.00 (first public release)
- ~~~~~~~~~~~~~~~~~~~~~
-
- Forget it :)