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@@ -3,7 +3,7 @@ README: Tk Tk is maintained, enhanced, and distributed freely as a service to the Tcl community by Scriptics Corporation. -RCS: @(#) $Id: README,v 1.13 1999/02/17 02:34:36 hershey Exp $ +RCS: @(#) $Id: README,v 1.14 1999/04/16 01:51:07 stanton Exp $ Contents -------- @@ -11,7 +11,7 @@ Contents 2. Documentation 3. Compiling and installing Tk 4. Getting started - 5. Summary of changes in Tk 8.0 + 5. Summary of changes in Tk 8.1 6. Development tools 7. Tcl newsgroup 8. Tcl contributed archive @@ -25,19 +25,23 @@ Contents This directory contains the sources and documentation for Tk, an X11 toolkit implemented with the Tcl scripting language. The information -here corresponds to release 8.0.5, which is the fifth patch update for -Tk 8.0. This release is designed to work with Tcl 8.0.5 and may not -work with any other version of Tcl. +here corresponds to release 8.1b3, which is the third beta release +for Tk 8.1. This release is mostly feature complete but may have bugs +and be missing some minor features. This release is for early +adopters who are willing to help us find and fix problems. Please let +us know about any problems you uncover. -Tk 8.0 is a major release with significant new features such as native -look and feel on Macintoshes and PCs, a new font mechanism, application -embedding, and proper support for Safe-Tcl. See below for details. -There should be no backward incompatibilities in Tk 8.0 that affect -scripts. This patch release fixes various bugs in Tk 8.0; there are no -feature changes relative to Tk 8.0. +The most important change in Tk 8.1 is that it supports the new +internationalization features in Tcl 8.1. It also contains a new +library for handling configuration options some of the widgets have +been converted to use the Tcl object facilities. For details on +features, incompatibilities, and potential problems with this release, +see the Tcl/Tk 8.1 Web page at -Note: with Tk 8.0 the Tk version number skipped from 4.2 to 8.0. The -jump was made in order to synchronize the Tcl and Tk version numbers. + http://www.scriptics.com/software/8.1.html + +or refer to the "changes" file in this directory, which contains a +historical record of all changes to Tk. Tk is a freely available open source package. You can do virtually anything you like with it, such as modifying it, redistributing it, @@ -153,120 +157,9 @@ library/demos/widget is a script that you can use to invoke many individual demonstrations of Tk's facilities, see the code that produced the demos, and modify the code to try out alternatives. -5. Summary of changes in Tk 8.0 +5. Summary of changes in Tk 8.1 ------------------------------- -Here is a list of the most important new features in Tk 8.0. The -release also includes several smaller feature changes and bug fixes. -See the "changes" file for a complete list of all changes. - - 1. Native look and feel. The widgets have been rewritten to provide - (nearly?) native look and feel on the Macintosh and PC. Many - widgets, including scrollbars, menus, and the button family, are - implemented with native platform widgets. Others, such as entries - and texts, have been modified to emulate native look and feel. - These changes are backwards compatible except that (a) some - configuration options are now ignored on some platforms and (b) you - must use the new menu mechanism described below to native look and - feel for menus. - - 2. There is a new interface for creating menus, where a menubar is - implemented as a menu widget instead of a frame containing menubuttons. - The -menu option for a toplevel is used to specify the name of the - menubar; the menu will be displayed *outside* the toplevel using - different mechanisms on each platform (e.g. on the Macintosh the menu - will appear at the top of the screen). See the menu demos in the - widget demo for examples. The old style of menu still works, but - does not provide native look and feel. Menus have several new - features: - - New "-columnbreak" and "-hideMargin" options make it possible - to create multi-column menus. - - It is now possible to manipulate the Apple and Help menus on - the Macintosh, and the system menu on Windows. It is also - possible to have a right justified Help menu on Unix. - - Menus now issue the virtual event <<MenuSelect>> whenever the - current item changes. Applications can use this to generate - help messages. - - There is a new "-direction" option for menubuttons, which - controls where the menu pops up revenues to the button. - - 3. The font mechanism in Tk has been completely reworked: - - Font names need not be nasty X LFDs: more intuitive names - like {Times 12 Bold} can also be used. See the manual entry - font.n for details. - - Font requests always succeed now. If the requested font is - not available, Tk finds the closest available font and uses - that one. - - Tk now supports named fonts whose precise attributes can be - changed dynamically. If a named font is changed, any widget - using that font updates itself to reflect the change. - - There is a new command "font" for creating named fonts and - querying various information about fonts. - - There are now officially supported C APIs for measuring and - displaying text. If you use these APIs now, your code will - automatically handle international text when internationalization - is added to Tk in a future release. See the manual entries - MeasureChar.3, TextLayout.3, and FontId.3. - - The old C procedures Tk_GetFontStruct, Tk_NameOfFontStruct, - and Tk_FreeFontStruct have been replaced with more portable - procedures Tk_GetFont, Tk_NameOfFont, and Tk_FreeFont. - - 4. Application embedding. It is now possible to embedded one Tcl/Tk - application inside another, using the -container option on frame - widgets and the -use option for toplevel widgets or on the command - line for wish. Embedding should be fully functional under Unix, - but the implementation is incomplete on the Macintosh and PC. - - 5. Tk now works correctly with Safe-Tcl: it can be loaded into - safe interpreters using safe::loadTk. - - 6. Text widgets now allow images to be embedded directly in the - text without using embedded windows. This is more efficient and - provides smoother scrolling. - - 7. Buttons have a new -default option for drawing default rings in - a platform-specific manner. - - 8. There is a new "gray75" bitmap, and the "gray25" bitmap is now - really 25% on (due to an ancient mistake, it had been only 12% on). - The Macintosh now supports native bitmaps, including new builtin - bitmaps "stop", "caution", and "note", plus the ability to use - bitmaps in the application's resource fork. - - 9. The "destroy" command now ignores windows that don't exist - instead of generating an error. - -Tk 8.0 introduces the following incompatibilities that may affect Tcl/Tk -scripts that worked under Tk 4.2 and earlier releases: - - 1. Font specifications such as "Times 12" now interpret the size - as points, whereas it used to be pixels (this was actually a bug, - since the behavior was documented as points). To get pixels now, - use a negative size such as "Times -12". - - 2. The -transient option for menus is no longer supported. You can - achieve the same effect with the -type field. - - 3. In the canvas "coords" command, polygons now return only the - points that were explicitly specified when the polygon was created - (they used to return an extra point if the polygon wasn't originally - closed). Internally, polygons are still closed automatically for - purposes of display and hit detection; the extra point just isn't - returned by the "coords" command. - - 4. The photo image mechanism now uses Tcl_Channels instead of FILEs, - in order to make it portable. FILEs are no longer used anywhere - in Tk. The procedure Tk_FindPhoto now requires an extra "interp" - argument in order to fix a bug where images in different interpreters - with the same name could get confused. - - 5. The procedures Tk_GetFontStruct, Tk_NameOfFontStruct, - and Tk_FreeFontStruct have been removed. - -Note: the new compiler in Tcl 8.0 may also affect Tcl/Tk scripts; check -the Tcl documentation for information on incompatibilities introduced by -Tcl 8.0. - 6. Development tools -------------------- |