--- /dev/null
+
+Changes from 2.4y to 2.4z
+
+FEATURES
+========
+
+graph/stripchart/barchart
+ Under Windows, both the "print1" and "print2" operations will
+ pop-up a standard printer dialog when you don't pass a printer
+ argument.
+graph/stripchart/barchart
+ New -state option for both elements and markers. If "disabled",
+ marker or element isn't eligible for binding events. This is
+ useful when you have lots (>100,000) of data points.
+graph/stripchart/barchart
+ New axis option -titlealternate lets you place the axis title to
+ the top or right of the axis. This used to automatically happen when
+ you had more than one axis in a margin. This option lets you control
+ it.
+tree
+ Both "find" and "apply" operations may be given more than one
+ pattern switch (-exact, -glob, or -regexp). This performs a
+ logical "or"--if any one of the pattern matches, the node is
+ a match.
+tree
+ Both "find" and "apply" operations now have addition switches
+ -keyexact, -keyglob, and -keyregexp (the -key switch works like
+ -keyexact). You may supply more than one switch. This performs
+ a logical "or"--if any one of the pattern matches, the node is a
+ match.
+graph/stripchart/barchart
+ New axis options -scrollmin and -scrollmax allow you to specify
+ the scroll region. Thanks to both Meaghan Parizeau
+ <Meaghan_Parizeau@srtelecom.com> and Julian H J
+ Loaring <jhjl@bigj.demon.co.uk> for the solution.
+graph/stripchart/barchart
+ Polygon marker will trigger bindings even if the marker is not
+ filled (-fill "") or has no outline (-linewidth 0). Interior
+ is always considered part of the polygon.
+tree
+ Tree adaptively restructures data values from a linked list into a
+ hash table when the number of values exceeds 20.
+configure.in
+ Can build BLT with cygwin (gcc under Windows) distribution. Type
+ ./configure and make to build. Use -disable-cygwin switch to build
+ "mingw" version. Many thanks to Mumit Khan <khan@pluto.xraylith.wisc.edu>
+ for all the hard work of porting the configure.in and Makefiles.
+
+BUG FIXES
+=========
+
+eps
+ Canvas item errors out with "can't get handle to EPS file" message.
+ Thanks to Shamil Daghestani <shamild@hotmail.com> for the bug report.
+graph/stripchart/barchart
+ Image marker doesn't get scaled correctly when scaling factor is
+ large. Thanks to Paul Kienzle <pkienzle@jazz.ncnr.nist.gov>
+ for the bug report and example script. It really helped.
+vector
+ "min" and "max" initially don't report the correct value. Many
+ thanks to Alexander Eisenhuth <stacom@stacom-software.de> for the
+ bug report.
+treeview/tree
+ "show -full $key" operation doesn't work.
+graph/stripchart/barchart
+ Doesn't display trailing data points when there are more than
+ 65331 points. Thanks to Val Shkolnikov <nvsoft@pacbell.net>
+ for the bug report.
+vector
+ Vectors leak memory when accessing them through the Tcl array
+ variable. Thanks to Alexander Eisenhuth <stacom@stacom-software.de>
+ for the bug report and especially the test script to demonstrate
+ the problem.
+treeview/tree
+ In "apply" operation, -regexp, -exact, or -glob switches don't
+ work. Always matches every node.
+graph/stripchart/barchart
+ Axis "-hide" option no longer accepts "all" value. "all" was
+ supposed to hide the axis *and* all the elements mapped to it.
+ I don't think this option ever worked correctly. It was also
+ unclear whether to hide the legend entry, markers, etc.
+graph/stripchart/barchart
+ Changing a marker's -hide option doesn't take effect until the
+ graph is redrawn. Thanks to Alex Verstak <averstak@vt.edu> for
+ the bug report.
+graph/stripchart/barchart
+ Spurious characters in PostScript output generated under Windows.
+ Thanks to Cary D. Renzema <Cary.Renzema@analog.com> for the bug
+ report and sample files.
+graph/stripchart/barchart
+ "snap" operation core dumps or returns X protocol error depending
+ on arguments. Thanks to Carsten Mortensen <cbm@microlex.dk> for
+ both the bug report and the fix.
+graph/stripchart/barchart
+ Polygon marker not drawn unless no outline is specified (-linewith 0).
+ Thanks to Nestor Patino <npatino@infovia.com.ar> for the bug report.
+treeview/tree
+ Tags are removed when tree or treeview widget is destroyed. Many
+ thanks to Todd Copeland <todd.copeland@legerity.com> for the report.
+treeview/tree
+ "index" operation segfaults when tag is empty. Again thanks to Todd
+ Copeland <todd.copeland@legerity.com> for the report.
+pkgIndex.tcl
+ Added checks for package directory and its parent when searching
+ for BLT shared library. Thanks to Anton Hartl <toni@devsoft.com>
+ for the bug report.
+
+Changes from 2.4x to 2.4y
+
+FEATURES
+========
+
+tree
+ Added -notags switch to "restore" operation.
+tree
+ Added additional fields to the tree "dump" format. When trees are
+ restored, will try to reuse old node ids (not always possible).
+tree
+ Added -label switch to "copy" operation. This lets you relabel the
+ destination node.
+
+BUG FIXES
+=========
+
+graph/stripchart/barchart
+ PostScript output sometimes includes a spurious box around an axis.
+ Thanks to Harvey.Davies@csiro.au for the bug report and example.
+tabset/tabnotebook
+ On errors tabnotebook grows ad infinitum. Thanks to Terri Fischer
+ <terri@ner.com> for the bug report and example.
+<general>
+ Tcl_Init fails with "can't find usable init.tcl" when running
+ bltsh or bltwish compile with ActiveTcl. Changed Tcl_AppInit to
+ set global "tclDefaultLibrary" variable.
+graph
+ "legend get" operation doesn't account for hidden entries
+ (i.e. -label is configured to ""). Thanks to Karl Voskuil
+ <voskuil@ll.mit.edu> for the bug report and the fix.
+graph
+ NULL pointer referenced (bindingTable) when destroying axis.
+bgexec
+ File redirection broken under Windows.
+graph
+ Area under curve not stippled correctly when bitmap is greater than
+ 8x8 (W95/W98) or device context is a metafile (all?). Created
+ XFillPolygon replacement for Windows.
+tree
+ Node modifiers are incorrectly ignored when first component is a tag.
+treeview
+ -shadow option no longer accepts empty string (no shadow). Many
+ thanks to Todd Copeland <todd.copeland@legerity.com> for the report.
+vector
+ Vector "create" operation slows down using #auto as more vectors
+ are created. Thanks to Todd Copeland <todd.copeland@legerity.com>
+ for the bug report.
+treeview/hiertable
+ Widget doesn't scroll horizontally correctly when -hideleaves is
+ true. Ignores last level when computing world width.
+treeview/hiertable
+ Deleting a node doesn't remove tag references to it. Thanks to
+ Steven Hafer <steven.hafer@legerity.com> for the bug report.
+treeview/hiertable
+ Giving the -path option to the "index" operation always fails. Thanks
+ to Paul Robins <paul.robins@st.com> for the bug report.
+<treeview.mann/hiertable.mann>
+ Documentation for the "get" operation isn't clear that it always returns
+ a list of lists when the -separator option is "" (the default), even
+ when there is only one node specified.
+
+Changes from 2.4w to 2.4x
+
+FEATURES
+========
+
+dragdrop
+ Back ported 8.3 "dde" command for use with 8.0.
+
+BUG FIXES
+=========
+
+treeview/hiertable
+ Can't create column that starts with a minus. Thanks to Todd Copeland
+ <todd.copeland@legerity.com> for the bug report.
+<Makefile.in>
+ pkgIndex.tcl file not getting rebuilt. Thanks to Terri Fischer
+ <terri@ner.com> for the bug report and fix.
+<dragdrop1.tcl,dragdrop2.tcl>
+ Send emulation script isn't needed for Tcl8.0 under Windows. Thanks to
+ Linh H Phan <phan@grover.jpl.nasa.gov> for the bug report.
+graph/stripchart/barchart
+ Using pen styles results in a bus error. Thanks to Julian H J
+ Loaring <jhjl@bigj.demon.co.uk> for the bug report.
+hiertable/treeview/tree
+ List of data values is reversed from 2.4v. Thanks to Jorge Suit
+ Prez Ronda <jsperez@bayesinf.com> for the bug report.
+<bltObjConfig.c>
+ Missing header file for varargs. Thanks to Terri Fischer <terri@ner.com>
+ for the bug report and fix.
+<bltAlloc.c>
+ TclpAlloc and TclpFree not found in Tcl 8.0. Again, thanks to Terri
+ Fischer <terri@ner.com> for the bug report and fix.
+<BLT.mann,barchart.mann,eps.mann,graph.mann,tabset.man>
+ Updated manual pages graciously provided by Terri Fischer <terri@ner.com>.
+
+Changes from 2.4v to 2.4w
+
+FEATURES
+========
+
+treeview
+ New treeview widget is updated version of hiertable. Uses Tcl_Objs.
+ The "hiertable" and "treeview" are the 100% syntax compatible. The
+ old hiertable is temporariliy available as "hiertable-old" should
+ you find errors. Also use the "treeview" instead of the "hierbox"
+ widget. The "hierbox" isn't as capable and doesn't use tree data
+ objects.
+treeview/hiertable
+ Added tagging operations similar to the "tree" command. Attaching
+ a tree to the treeview/hiertable (the -tree option) now gives you
+ access to the tree's tags too. Don't confuse this with "bindtags".
+ For example, you can tag nodes with the "tree" command and operate
+ on them in the treeview/hiertable widget using that tag. If you
+ don't want to share tags, the -newtags option will prevent this.
+ There's an update "treeview" manual entry to describe this.
+treeview/hiertable
+ The "nearest" operation can report what part of the entry the pointer
+ is over. If a variable name argument is given, the variable will
+ contain either "button", "label", "icon", or "".
+eps/winop
+ Faster image zooming and rotation (fixed-point arithmetic).
+
+BUG FIXES
+=========
+
+vector
+ Test of real number in a range is broken. Thanks to Paul Robins
+ for the bug report.
+treeview/hiertable
+ "nearest" operation doesn't allow an optional "variable" argument.
+hiertable/hierbox
+ The -selectioncommand command is invoked when closing an entry
+ with no selected descendants. Thanks to Jorge Suit Prez Ronda
+ <jsperez@bayesinf.com> for the bug report.
+hiertable/hierbox
+ In single "mode", the selection anchor is not updated when the
+ selection is moved via the keyboard. Thanks to Jorge Suit Prez Ronda
+ <jsperez@bayesinf.com> for the bug report.
+hiertable
+ Editor overwrites memory (seen best under Windows).
+hiertable
+ The "open" and "close" operations don't check for no arguments.
+hiertable
+ Vertical dotted lines start on wrong y-coordinate when clipped.
+hiertable
+ Active button isn't clipped by column titles.
+hiertable
+ Column titles are still displayed and picked despite -showtitles
+ set to "no".
+hiertable
+ Editor doesn't automatically select acquired text.
+hiertable
+ Moving the cursor in the editor doesn't clear the selection.
+hiertable
+ Typing a "space" doesn't replace the selection with a space.
+tree
+ Traces on the same node loop infinitely. TRACE_ACTIVE flag not
+ set/unset.
+tree
+ The "restore" and "restorefile" operations don't handle newlines
+ in data key/values, node labels, or tags.
+graph/barchart/stripchart
+ Crosshairs left on screen when the mouse is pulled quicky from the
+ widget.
+graph/barchart/stripchart
+ Spurious crosshairs also left on the screen if axes are reconfigured
+ (active axes).
+graph/barchart/stripchart
+ Image marker not updated if image is changed.
+graph/barchart/stripchart
+ PostScript not generated for -showvalues option.
+graph/barchart/stripchart
+ PostScript not generated for errorbars.
+bgexec
+ No check for wrong number of arguments if switch is present.
+<bltAlloc.c>
+ Blt_MallocProcPtr and Blt_FreeProcPtr not declared extern in
+ bltInt.h
+<bltTile.c>
+ Bogus test for mask in Blt_TilePolygon routine.
+<bltImage.c>
+ Counter for transparent pixels wrong in Win32 version of Blt_PolygonMask.
+<bltInit.c>
+ blt_version not set when dynamically loaded into wish83.exe.
+
+Note: Stub support is still missing although patches have been
+ graciously provided for the 2.4q release. This will be added as
+ soon as I can get some free time.
+
+Changes from 2.4u to 2.4v
+
+FEATURES
+========
+bgexec
+ New -linebuffered switch.
+
+ bgexec myVar -linebuffered yes -onoutput ShowLine myProg &
+
+ This option lets you process updated data (-onerror, -onoutput,
+ -error, or -output) on a line by line basis. Normally notifications
+ occur once for entire data block. This switch causes separate
+ notifications to made for each complete line.
+bgexec
+ New -decodeoutput and -decodeerror switches.
+
+ bgexec myVar -decodeoutput unicode -output myOut myProg &
+
+ Translates data from the specified encoding to UTF before passing
+ it to the Tcl interpreter. Normally no translation is made (under
+ Windows CR-LF conversions are made) and the raw, typically ASCII,
+ characters are passed back to the Tcl interpreter.
+ Binary data can be collected with the "binary" encoding. For
+ versions using Tcl 8.1 or greater, data is returned as Tcl byte
+ array object, so you can use the "binary" command to convert it
+ as needed.
+
+ set out [bgexec myVar -decodeoutput binary myProg]
+ binary scan $myOut f values
+tree
+ New "dumpfile" and "restorefile" operations to "tree" command.
+tree
+ Extended -> syntax in tree command to use node names.
+
+ set data [$tree get root->"fred"->"pebbles"]
+tree
+ Improved memory handling of large trees. Pool allocators added to
+ reduce overall memory consumption.
+graph/stripchart/barchart
+ New -buffergraph switch.
+ .graph configure -buffergraph no
+graph
+ New options to fill area under curve of an element.
+
+ .graph element configure line1 -areapattern solid
+ .graph element configure line2 -areapattern BLT
+graph/stripchart/barchart
+ New -reduce option.
+
+ .graph element configure line1 -abstol 0.5
+
+ Designates error tolerance for line simplificiation. Points that
+ vary less than the given tolerance are merged into a single line
+ segment.
+miscellaneous
+ Can globally replace memory allocation routines by setting
+ pointers Blt_MallocProcPtr and Blt_FreeProcPtr.
+winop
+ New "rotate" operation lets you rotate photo images.
+
+BUG FIXES
+=========
+bgexec
+ Fixed a race condition that caused assertion under Windows to fail.
+ When both stdout and stderr are collected, if the stdout handler
+ finishes first, the memory used by read thread handler could be
+ freed before the stderr pipe was closed.
+graph/stripchart/barchart
+ PostScript coordinates are no longer integers (screen resolution).
+graph/stripchart/barchart
+ Polygon markers now clipped properly.
+vector
+ Vectors can't be mapped to local variables. This was broken
+ in the 2.4r release. Thanks to Johannes Zellner
+ <johannes@zellner.org> for the bug report.
+vector
+ Tcl command associated with a vector not destroyed when the vector
+ is deleted. Much thanks to Alexander Eisenhuth <stacom@topmail.de>
+ for the bug report and the example script.
+drag&drop
+ "drag&drop" command fails when multiple formats are specified.
+ Seen in the dragdrop2.tcl demo.
+spline
+ Incorrectly reports the spline's x-vector to be non-monotonic.
+ Thanks to Chang Li <changl@neatware.com> for the bug report.
+<pkgIndex.tcl>
+ Fixed pkgIndex.tcl.in to figure out whether to load libBLT24.so
+ or libBLTlite24.so when BLT is loaded, not when the package is
+ registered. Thanks to Dr. Dieter Ruppert <ru@swb.siemens.de> for
+ the bug report and fix.
+
+Changes from 2.4t to 2.4u
+
+BUG FIXES
+=========
+<./configure>
+ Fixed my stupid error (missing close brace) in ./configure file.
+<Makefile.in>
+ Makefile in src/shared doesn't define BLT_LIBRARY. Thanks
+ to terri@ner.com (Terri L. Fischer) for the bug report and fix.
+graph/barchart/stripchart
+ graph doesn't find vector in global namespace when inside of another
+ namespace. Thanks to Julian H J Loaring <bigj@bigj.demon.co.uk> for
+ the bug report.
+graph/barchart/stripchart
+ Scratch buffer to small for PostScript prolog. Thanks again to
+ Julian H J Loaring <bigj@bigj.demon.co.uk> for the bug report
+ and fix.
+graph
+ "bind" would fail on elements without traces (-linewidth 0).
+ Thanks again to terri@ner.com (Terri L. Fischer) for the bug report.
+
+ o Many changes to "dnd" command.
+
+ + -package option is treated as a command prefix (like the
+ scrollbar), not a script. Percent sign substitutions are
+ no longer allowed. Information is passed via key-value
+ parameters like the -onleave, -ondrop procedures. Procedure
+ must return 1 if operation was Ok, and 0 if it failed.
+
+ + The command arguments for both the "setdata" and "getdata"
+ operations have changed from an arbitrary Tcl script with
+ percent sign substitutions, to a command prefix with
+ key-value arguments appended. The general form is
+
+ procName widget args...
+
+ where args is one of more key value pairs.
+
+ x Relative X-coordinate of drop or pickup.
+ y Relative Y-coordinate of drop or pickup.
+ timestamp Timestamp of transaction.
+ format Format desired.
+ value Value transfered (setdata only).
+
+ You can use array set to parse "args". For example:
+
+ proc GetColor { widget args } {
+ array set info $args
+
+ puts "x-coordinate is $info(x)"
+ puts "selected format is $info(format)"
+
+ return [$widget cget -bg]
+ }
+
+ + If an -onmotion procedure is specified for the target, it is
+ automatically invoked on drops before the -dropcmd is run.
+ If it returns 0, the drop is canceled.
+
+ + Added ./demos/dnd2.tcl to show more complicated example.
+ Just like dnd1.tcl, you need to run two of them at the same
+ time to see the drag-and-drop operations.
+
+ + Target property wasn't getting reset when changing -onmotion,
+ -onleave, etc. procedures.
+
+ + Timestamps now displayed as unsigned.
+
+ Many thanks to Tom Lane <tgl@sss.pgh.pa.us> for all his help and
+ suggestions.
+
+Changes from 2.4s to 2.4t
+
+ o Tree command syntax changes. Notify and trace operation now work
+ as advertised and a copy operation added. Many thanks to Matt
+ Newman <matt@sensus.org> for meticulously reviewing the command.
+
+ o graph "snap" operation syntax change. Added support for generating
+ Aldus metafiles and enhanced metafiles under Windows.
+
+ # Normal syntax.
+ set image [image create photo]
+ .graph snap $image
+
+ # New additions.
+ .graph snap -format emf myFile.emf ;# Enhanced metafile
+ .graph snap -format wmf myFile.wmf ;# Aldus placable metafile
+ .graph snap -format emf CLIPBOARD ;# Metafile written into clipboard.
+
+ Old width and height arguments are replaced with -width and -height
+ switches.
+
+ .graph snap $image 500 500 ;# Old
+ .graph snap -width 500 -height 500 $image ;# New
+
+ Thanks to Alain Zuur <a.zuur@marlab.ac.uk> for the enhancement.
+
+ o Tabset/Tabnotebook -selectforeground option for tabs using wrong
+ configuration option type. Both the bug report and fix are from
+ Mark E. Smith <mark@pearl.grand.gdats.com>. Thanks.
+
+ o graph "bind" to use closest point instead of line segment when
+ element contains only 1 point. Thanks to Uwe Klein
+ <uwe-klein@foni.net> for the bug report and script.
+
+ o Hiertable tree view column has been internally renamed to
+
+ "BLT Hiertable widgetName".
+
+ It was formerly the name of the widget. Fortunately, you can
+ refer to the column as "treeView" instead.
+
+ .ht column configure treeView -text "View Label"
+
+ o There's no ".tree" suffix anymore on the default tree created by
+ the hiertable widget. It's now just the widget name.
+
+ o Many hiertable column bug fixes. Thanks to Julian H J Loaring
+ <bigj@bigj.demon.co.uk> for all the tests and reports.
+
+ o Rotated text displayed incorrectly under Windows 95/98 using
+ non-TrueType fonts. A test for typetype fonts has been restored.
+ Thanks to James Pakko <jpakko@ford.com> for the bug report and
+ script.
+
+ Under Windows, Non-TrueType fonts are drawn into a bitmap and
+ the bitmap is rotated. This provides the same quality as using
+ rotated fonts for on-screen display. Unfortunately it's much
+ poorer for higher resolution devices such as printers. The best
+ bet is to simply choose TrueType fonts if you can.
+
+ o Improved Hiertable folder images. Many thanks to Tom Lane
+ <tgl@sss.pgh.pa.us> for the new images.
+
+ o Bgexec segfaults under Windows (NT/95) if file handler is
+ deleted inside of callback. Thanks to Chris Oliver
+ <coliver@mminternet.com> for the bug report.
+
+ o graph segfaults if pen style range min/max are the same.
+ Thanks to Thomas Wu <twu@gene.com> for the bug report and script.
+
+ o tabnotebook and tabset widgets would generate X11 errors if
+ embedded window was resize to zero width/height. Thanks to
+ Ed Ohsone <eosn@rahul.net> for the report and the script to
+ demonstrate the error.
+
+Changes from 2.4r to 2.4s
+
+ o Fixed bug in stripchart (introduced in 2.4r) allowing uninitialized
+ data to be displayed. Thanks to Dick Gooris <gooris@lucent.com> for
+ the bug report.
+
+ o AIX dynamic loading. Actually made it work on a 4.3 AIX box.
+
+ o Fixed -tree option in hiertable. Would segfault if tree was not
+ fully initialized first.
+
+ o Tree insert operation syntax changed from
+
+ tree0 insert $node key1 value1 key2 value2
+ to
+ tree0 insert $node -data { key1 value1 key2 value2 }
+
+ o Fixed tree label operation. Save uid instead of string.
+
+ o Bug in TreeEventProc, should be node != NULL instead of node >= 0
+ Thanks to Julian H J Loaring <bigj@bigj.demon.co.uk> for the
+ bug report.
+
+
+What's new in 2.4?
+
+ 1. "eps" canvas item.
+
+ An encapsulated PostScript canvas item lets you embed an EPS file into
+ the canvas. The "eps" item displays either a EPS preview image found
+ in the file, or a Tk image that you provide.
+
+ 2. "hierbox" and "hiertable" widget.
+
+ Hierarchical listbox widget. Displays a general ordered tree which
+ may be built on-the-fly or all at once.
+
+ 3. "tabset" and "tabnotebook" widget.
+
+ Can be used either as a tab notebook or simple tabset. Tabs can
+ be arranged in a variety of ways: multi-tiered, scrolled, and
+ attached to any of the four sides. Tab labels can contain both
+ images and text (text can be arbitrarily rotated). Notebook pages
+ can be torn-off into separate windows and replaced later.
+
+ 4. Changes to vectors.
+
+ New features:
+
+ o Vector expressions. The vector now has an "expr" operation
+ that lets you perform math (including math library
+ functions) on vectors. There are several new functions
+ (such as "max", "min", "mean" "median", "q1", "q3", "prod",
+ "sum", "adev", "sdev", "skew", ...)
+
+ vector expr { sin(x)^2 + cos(x)^2 }
+ y expr { log(x) * $value }
+
+ o New syntax to create and destroy vectors:
+
+ vector create x
+ vector destroy x
+
+ The old syntax for creating vectors still works.
+
+ vector x
+
+ o Vectors are *not* automatically deleted when their Tcl
+ variable is unset anymore. This means that you can
+ temporarily map vectors to variables and use them as you
+ would an ordinary Tcl array (kind of like "upvar").
+
+ proc AddValue { vecName value } {
+ $vecName variable x
+
+ set x(++end) $value
+ }
+
+ There's an "-watchunset" flag to restore the old
+ behavior if you need it.
+
+ vector create x -watchunset yes
+
+ o Vectors still automatically create Tcl variables by
+ default. I'd like to change this, but it silently
+ breaks lots of code, so it will stay.
+
+ Bug fixes:
+
+ o Vector reallocation failed when shrinking the vector.
+
+ o Vector "destroy" callback made after vector was already freed.
+
+ o Fixed vector/scalar operations.
+
+ o Always store results in temporary, so not to overwrite accidently
+ current vector values.
+
+ 5. Changes to Graph, Barchart, Stripchart widgets.
+
+ New features:
+
+ o Drop shadows for text (titles, markers, etc). Drop
+ shadows improve contrast when displaying text over a
+ background with similar color intensities.
+
+ o Postscript "-preview" option to generate a EPS
+ PostScript preview image that can be read and
+ displayed by the EPS canvas item.
+
+ o New "-topvariable", "-bottomvariable",
+ "-leftvariable", and "-rightvariable" options. They
+ specify variables to contain the current margin
+ sizes. These variables are updated whenever the
+ graph is redrawn.
+
+ o New "-aspect" option. Let's you maintain a particular aspect
+ ratio for the the graph.
+
+ o Image markers can now be stretched and zoomed like
+ bitmap markers.
+
+ o Bind operation for legend entries, markers, and elements.
+
+ Much thanks to Julian Loaring <bigj@bigj.demon.co.uk>
+ for the idea.
+
+ o New "-xor" option for line markers, lets you draw the line
+ by rubberbanded by XOR-ing without requiring the graph to
+ be redrawn. This can be used, for example, to select regions
+ for zooming.
+
+ Thanks to Johannes Zellner (joze@krisal.physik.uni-karlsruhe.de)
+ for the idea.
+
+ o Can attach a scrollbar to an axis.
+
+ .sbar configure -command { .graph axis view y }
+ .graph axis configure y -scrollcommand { .sbar set }
+
+ Bug fixes:
+
+ o Closest line (point) broken when using pens styles.
+
+ o Marker elastic coordinates were wrong.
+
+ o PostScript bounding box included the border of the page.
+
+ o Bad PostScript generated for barchart symbols with stipples.
+
+ o Wrong dimensions computed with postscript " -maxpect" option.
+
+ o Text markers fixed.
+
+ Thanks to De Clarke for the bug report and fix.
+
+
+ o Renamed axis configuration from "-range" to "-autorange" to
+ match the documentation.
+
+ Thanks to Brian Smith for the correction.
+
+ o Fixed polygon marker pick routine.
+
+ o Fixed active tab labels overlapping the selected tab.
+
+ o PostScript graph footer turned off by default. Use -footer option
+ to turn on.
+
+ .graph postscript configure -footer yes
+
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