XCircuit History of Code Modifications

XCircuit Version 3.6

• posted: August 1, 2008 at 2:40am     version: 3.6     revision: 139
  2008-07-31 17:23 tim Corrected an error that causes a crash if one goes to a library page while one of several editing operations (wire, box, etc.; those that have associated event handlers attached to mouse movement) is in effect.
• posted: July 19, 2008 at 2:40am     version: 3.6     revision: 138
  2008-07-18 20:27 tim Updated Wim Vereecken's matgen.tcl from version 0.5 to version 0.7.
• posted: July 7, 2008 at 2:40am     version: 3.6     revision: 137
  2008-07-06 11:22 tim Added /usr/share/tcltk to the search path for Tcl and Tk in the configure script, to conform to the Ubuntu Linux distribution.
• posted: July 3, 2008 at 2:40am     version: 3.6     revision: 136
  2008-07-02 20:57 tim Corrected a minor error in which over/underlines canceled by a font change (to the current font) rather than an explicit "noline", lose the line cancelation upon reading the file back into xcircuit.
  Also: Made a number of minor changes in order to allow a parameterized "page X of Y" label at the bottom of a page: 1) corrected the command "page links sheet" to return the correct sheet number (X); 2) prevented the tag callback for "page" from infinitely recursing; 3) set the page during output printing so that "X" gets printed correctly in the output for each page.
• posted: June 26, 2008 at 2:40am     version: 3.6     revision: 135
  2008-06-25 21:00 tim Corrected the popup-prompt window for setting linewidth so that it works correctly when multiple windows are present. Unfortunately, the same change needs to be made to several dozen such popup windows.
  Also: Corrected the LaTeX-labels code (again) so that any overall scaling of the xcircuit drawing will translate to the end result---whatever xcircuit says the size of the drawing is, will be the size of the drawing in the LaTeX document. LaTeX labels are scaled and positioned accordingly. Thanks again to Alex Tercete, and there will probably be more extensions to come.
  Also: And one more change to the LaTeX output, so that XCircuit honors label size changes, and more closely matches LaTeX label "normalsize" to XCircuit's label size 1.0 (LaTeX "normalsize" was supposed to be the basis of XCircuit's unit scale, which makes me wonder how I got off by a factor of 1.2. . .). As yet, label rotations and color are not handled.
  Also: And finally, handling of rotated text. That is all I'm going to do for tonight. However, sometime I should make sure that all scales and rotations are referred to the top-level, when LaTeX text is buried in an object instance.
• posted: June 24, 2008 at 2:40am     version: 3.6     revision: 134
  2008-06-23 08:31 tim Corrected an error, pointed out to me by Orestes Mas, preventing "snap space" and "grid space" from being executed from a window.
• posted: June 23, 2008 at 2:40am     version: 3.6     revision: 133
  2008-06-22 21:18 tim Changed the LaTeX mode output according to Alex Tercete's solution of using \scalebox{} and \parbox{} around \includegraphics{}, which allows the LaTeX output to track the "scale" setting in the xcircuit output, scales both text and graphics at the same time, and avoids requiring declaring the "epsfig" package. Thanks, Alex!
• posted: June 5, 2008 at 2:40am     version: 3.6     revision: 132
  2008-06-04 22:50 tim Corrected an apparently not-previously-reported error that causes a crash due to an out-of-bounds index into the fonts array. This may be a pathological condition, as it was found by accidentally reading a file produced by a newer version of xcircuit into an older executable. However, this does highlight the need for some version checking to avoid this kind of error.
• posted: May 16, 2008 at 2:40am     version: 3.6     revision: 131
  Changed the "package require -exact" to "package require" in tkcon.tcl, so that xcircuit will work on Tcl/Tk version 8.5.
• posted: February 5, 2008 at 2:40am     version: 3.6     revision: 130
  Corrected filename expansion so that tilde-prefixed filenames are treated as full paths and not appended to the search path prefixes when looking for input files.
• posted: January 18, 2008 at 2:40am     version: 3.6     revision: 129
  Updated Wim Vereecken's matgen.tcl to version 0.6.
• posted: January 7, 2008 at 2:40am     version: 3.6     revision: 128
  2008-01-06 09:06 tim Made some corrections to the non-Tcl version to prevent crashes due to NULL filename entries. There may be other places where this crops up, but at least it will save a file properly.
  Also: 2008-01-07 02:40 tim
• posted: September 24, 2007 at 2:40am     version: 3.6     revision: 127
  2007-09-23 12:00 tim Several corrections: 1) Corrected an error in "findcurfont" that could crash xcircuit if an expression parameter returns an error result, and the resulting string part is NULL. 2) Corrected an error that allowed degenerate (single-point) polygons to remain, if the polygon were edited and all points placed on top of each other. 3) Corrected an error that prevented using "undo" on any arc that was edited to zero radius (the element was deleted rather than being placed on the undo stack). 4) Removed a few more direct Tcl_Eval calls to GUI functions, replacing them with "XcInternalTagCall()" calls.
• posted: September 22, 2007 at 2:40am     version: 3.6     revision: 126
  2007-09-21 23:38 tim Corrected a few problems with the parameter value edit box; namely, that 1. The choice-list box should lower itself when a selection has not been made (still, there should be a way to cancel it. . .); 2. Expression parameters that are *not* choice-lists should make it into the edit box, except that 3. they should be printed as the expression itself (-verbatim option), not the expression result.
• posted: September 18, 2007 at 2:40am     version: 3.6     revision: 125
  2007-09-17 09:20 tim Corrected the "tech replace all" command as called from the "File Load" GUI, which was calling it as "tech replace any", and therefore not working.
  Also: Corrected an error that was producing a spurious Tcl error message when executing "Load Dependencies". The result value was not a TCL result type, and there wasn't any error.
  Also: Corrected a slew of errors in large project handling. These changes include: 1) Force a write of technology files when doing "Write All" and choosing "Force" 2) Added "technology used " option to find all technology files to which objects that are descendents of the page belong. 3) Added "technology changed " to force technology files to be marked as changed or unchanged (previously this was only possible with pages). 4) Corrected the handling of the technology "writable" flag on input, which was looking at the last technology created rather than the technology belonging to the input file, so files containing objects with multiple technology prefixes would get the writable flags all screwed up. 5) Do not follow symbol-to-schematic links that were made through the "link" parameter. In particular, this means don't collect such links and force all the filenames to be the same. 6) Related to (5), added "file links linked" as an option which finds pages linked via the "link" parameter. The other "file link" options now specifically do *not* list pages linked through the "link" parameter, to get the behavior of item (5).
  Also: Changed the symbol.tcl file to make "index" the default parameter key for a component index rather than "idx".
• posted: September 15, 2007 at 2:40am     version: 3.6     revision: 124
  2007-09-14 13:58 tim Added Wim Vereecken's "matgen" function for importing Matlab scripts (now if it can only be translated into gnuplot output from Octave!). Also, rearranged some of the startup functions so that functions imported from outside scripts like this one will get put into the menus of all secondary windows. Finally, rearranged the menu such that all import functions appear as a secondary "Import" menu under the "File" main menu.
• posted: September 14, 2007 at 2:40am     version: 3.6     revision: 123
  2007-09-13 19:45 tim Added patch by Wim Vereecken that fixes the weird behavior where "color add " always returns the highest index in the color list, even when the color already exists in the color table and therefore has a different index from the one returned. This functionality had been implemented with "color index ", but it seems inappropriate to let "color add" return an incorrect color index. Now "color index" and "color add" are effectively redundant options.
• posted: September 12, 2007 at 2:40am     version: 3.6     revision: 122
  2007-09-11 09:15 tim Corrected a bug introduced by attempts to clean up the "Make Matching Symbol" function. The bug strips the technology name off of objects when they are created. Thanks to Dimitri Princen for the bug report.
  Also: Corrected the function that changes corresponding pins in a symbol vs. its schematic, which was also incorrectly changing corresponding pins between a schematic secondary page and its primary.
• posted: September 11, 2007 at 2:40am     version: 3.6     revision: 121
  2007-09-10 11:07 tim Another several corrections to indirect parameter handling. (1) The eparamptr structure now contains an extra byte with a bit flag reporting if the parameter is indirect or not. This allows object instances to have parameterized position and rotation; otherwise, there is a conflict; and (2) corrected the output name of indirect parameter references to match the new system of prepending "@" to such names to avoid conflicts with defined PostScript keywords.
• posted: September 10, 2007 at 2:40am     version: 3.6     revision: 120
  2007-09-09 12:20 tim Corrections to text_regexp, auto-increment, and undo: Added an "undo series " command to allow Tcl prodedures to act as monolithic blocks with respect to the "undo" mechanism. Changed text_regexp and auto-increment to make use of this function, so that blocks of label selections that are changed at once get undone at once.
  Also: Corrected an error which left a corrupted "undo" stack when an element was copied on top of itself. This action would delete the duplicate element to prevent the problem of having invisible multiple elements screwing up a netlist. However, previously the duplicate was deleted instead of being transferred to the undo stack.
  Also: Made a small change in the netlister that allows parameters to be cross-referenced between a symbol and schematic, using indirect parameters. For example, take an nMOS symbol with parameter "width", used in a schematic "inverter". In the inverter, the nMOS parameter is indirectly linked to a parameter called "scale" in the schematic of "inverter". The symbol for "inverter" also contains a parameter called "scale". If a top-level schematic uses symbol "inverter" and gives it a parameter value scale=2, then a flat netlist format will transfer the value of "scale" in the inverter to "width" in the nMOS. The subtleties of this method will be hammered out in the tutorial.
• posted: September 9, 2007 at 2:40am     version: 3.6     revision: 119
  2007-09-08 21:25 tim Dimitri Princen corrected the new GUI window for parameter modifications to include the ability to handle multiple-selection Tcl expression parameters, in the listbox, which is a nice way of handling it.
• posted: September 8, 2007 at 2:40am     version: 3.6     revision: 118
  2007-09-07 12:37 tim Several more corrections: The technology name was still getting attached to the schematic name when using the "associate" function. Also, corrected the auto-increment routine so that it doesn't generate an error when a selected label doesn't contain any numbers to increment.
  Also: 2007-09-08 01:08 tim Added Dimitri Princen's enhancements to the parameter edit window (namely, embedding the parameter entry widget in the same window as the parameter list). Also, created a popup window for text modification, including search-and-replace and a general-purpose number increment/decrement.
• posted: September 6, 2007 at 2:40am     version: 3.6     revision: 117
  2007-09-05 11:30 tim Corrected an error that prevented the netlist from being destroyed and recreated when the netlist is invalidated on a secondary page of a multiple-page schematic. This would lead to a corrupted netlist and quickly cause a crash.
  Also: Also: Corrected the crash recovery file read-in to correctly terminate the filename string; otherwise, the filename can end up with extra characters at the end.
  Also: Also: Corrected another error that attempts to look for filenames beginning with "/" in the file search path, rather than in an absolute path. This prevented crash recovery files from being found and loaded.
  Also: Also: Corrected the schematic-to-symbol switch so that selected elements can be transferred from one to the other during a move or copy command. Note that the schematic-to-symbol switch is not handled by the "undo" mechanism, although it should be!
  Also: Proper correction to the problem of having the technology name copied over to the schematic. The previous claimed fix of this problem didn't solve it.
  Also: Corrected the error that occasionally prints "Use of non-numeric characters in component. . .". This was due to having the occasional instance value copy the "?" from the default value. I'm not sure how the instance value gets that way without passing through resolveparams() and getting eliminated, but presumably no harm is done by its being there.
• posted: September 5, 2007 at 2:40am     version: 3.6     revision: 116
  2007-09-04 17:29 tim Added a Tcl script for doing regular expression substitution into a text label (or all selected text labels, or all text labels on a page).
• posted: September 2, 2007 at 2:40am     version: 3.6     revision: 115
  2007-09-01 15:05 tim Corrected an error that causes xcircuit to segfault if "X" (exchange) is typed with no selections made. This happened to me when I inadvertently reached too far when going for the "Z" for zoom.
• posted: September 1, 2007 at 2:40am     version: 3.6     revision: 114
  2007-08-31 11:00 tim Added John Barry's code for drawing small dots in the grid color around 20x snap spacing points. Also: Another correction to the symbol generation, which failed to add the namespace separator "::" between the technology name and the symbol name when generating symbols.
  Also: Corrected some errors with link dependency loading. The routines now use the instance value of the "link" parameter, if it is different from the default, and reports an error on failure to load the file.
• posted: August 31, 2007 at 2:40am     version: 3.6     revision: 113
  2007-08-30 12:31 tim Corrected the "symbol.tcl" script that creates matching symbols for schematics. The handling of label selections had changed, leaving labels selected after justification. This likely needs to be changed in the tclxcircuit.c code; for now, I'm adjusting the script to cope with the change.
  Also: Modified the netlisting so that device indices that are specifically set will be honored when generating the slash-separated hierarchical names for internal nodes. For example, if cell "decoder" is given an index parameter value "4", then nodes in this cell will be prefixed with "decoder_4", instead of some unrelated number, which was the prior behavior. This is particularly important if a netlist is being generated by concatenating results of different netlist formats. Also modified the index generation for devices in flat netlists such that the numbering is independently counted for each device class. This is a minor enhancement, but comes in handy when one is searching in the netlist for the first resistor and can't find any reference to "R1", because after writing out 45 other devices, the first resistor was given the index "R46". Also: another correction to the automatic symbol generating code, to ensure that the new symbol gets the technology type specified in the dialog box. Otherwise, new symbols end up in the user space always.
• posted: August 26, 2007 at 2:40am     version: 3.6     revision: 112
  2007-08-25 08:09 tim Implemented a bug fix by Dimitri Princen, fixing the error where attempting to change font style one character into a text label would (at best) fail to work and (at worst) crash the program.
• posted: August 21, 2007 at 2:40am     version: 3.6     revision: 111
  2007-08-20 20:23 tim Corrected the output of "config pinpositions" and "config bbox" to return the words "visible" and "invisible" rather than "true" and "false"; otherwise, the GUI checkboxes are not updated properly, and it becomes impossible to change the settings again from the GUI. Thanks to Dimitri Princen for the bug report.
• posted: August 9, 2007 at 2:40am     version: 3.6     revision: 110
  2007-08-08 22:54 tim Corrected the call to memset() with the patch from Chitlesh Goorah.
• posted: July 18, 2007 at 2:40am     version: 3.6     revision: 109
  2007-07-17 21:40 tim Implemented Dimitri Princen's fixes and enhancements for the "raise" and "lower" functions. "lower" would cause an element to be lost in certain situations, and has been corrected. The TCL "element raise" and "element lower" commands now respect the order of elements in a group when a group selection is raised or lowered. Also, finished the implementation of "drag and drop" between multiple xcircuit windows. This does not work in "hold" modes (which lock focus on the window where the button was pressed), but will work in the toolbar "move" and "copy" modes. In finishing this implementation, I also fixed an error that causes the initial position of an element to be incorrect when moving between pages, objects, or windows (this was generally not very noticeable because the position would correct itself after any mouse motion).
• posted: June 29, 2007 at 2:40am     version: 3.6     revision: 108
  2007-06-28 21:30 tim Corrected an error in the tag callback mechanism that would hang the program if a command with non-escape percent signs was passed to the tag handler (e.g., an info label "make" statement with its own percent escapes. This causes, for example, the "read EDIF" command to fail).
• posted: June 25, 2007 at 2:40am     version: 3.6     revision: 107
  2007-06-24 23:10 tim Finished the code to generate new xcircuit windows by adding the capability to regenerate the color and font menus in each new window. Removed this item from the TODO list, and added some others that I have been thinking about lately.
• posted: June 21, 2007 at 2:40am     version: 3.6     revision: 106
  2007-06-20 13:16 tim Corrected an error in setallstylemarks() which incorrectly used strcat() instead of strcpy() to write into an uninitialized character array. Thanks to Dimitri Princen for finding and fixing the bug!
• posted: June 20, 2007 at 2:40am     version: 3.6     revision: 105
  2007-06-20 00:10 tim A number of corrections to the updates from the last few days. There is still a crash-causing bug lurking about. Beware!
• posted: June 19, 2007 at 2:40am     version: 3.6     revision: 104
  2007-06-18 08:43 tim Applied a fix from Dimitri Princen for a bug that will cause spurious segmentation violations on any system that defines "Boolean" as anything other than "int".
  Also: Added missing icon.
• posted: June 18, 2007 at 2:40am     version: 3.6     revision: 103
  2007-06-17 08:43 tim Numerous things in this revision: Added the "preselected" method to the appropriate actions (rotate, flip, move, exchange, rejustify, etc.) (see notes on last commit). Also: Added an interactive rescale method and a toolbar button to go along with it. Also: Extended the "unjoin" method to cover what was previously handled by the "x" key in edit mode for polygons, to break a polygon at a specific point. The "unjoin" command will break the polygon at the point closest to the pointer position.
  Also: 2007-06-17 16:06 tim Also: Corrected an error in file read-in in which parameter substitutions were made on the wrong object when comparing two objects.
  Also: 2007-06-18 00:04 tim
• posted: June 17, 2007 at 2:40am     version: 3.6     revision: 102
  2007-06-16 07:35 tim Partially implemented a new method in which elements that are selected prior to certain actions (rotate, flip, move, etc.) remain selected after the action has finished. This should satisfy the several people who have complained that element group rotations are difficult because the elements get unselected after each rotation step.
• posted: June 16, 2007 at 2:40am     version: 3.6     revision: 101
  2007-06-15 09:41 tim Added auto-positioning of popup windows when they appear, to be centered on the pointer position, and adjusting to prevent off-of-screen positions. Windows that already exist are not repositioned.
  Also: 2007-06-15 11:03 tim
• posted: June 15, 2007 at 2:40am     version: 3.6     revision: 100
  2007-06-15 00:17 tim Cleaned up most of the interaction between the command-line interface and the GUI, removing direct references to the GUI from the C code. Check- and radiobuttons now work correctly for border styles, fill styles, color, fonts (all aspects), and options. Check boxes are no longer left in an incorrect state after an element is deleted.
• posted: June 13, 2007 at 2:40am     version: 3.6     revision: 99
  2007-06-12 15:57 tim Corrected an error in which the edit cycle of a polygon was not reset after editing, causing bizarre behavior in "pinattach" mode.
  Also: Also: Added more tag callback handling to set GUI check- and radiobuttons to reflect changes made by the command line or startup code. Changed the "label" command such that "label justify" (without any selections made) returns a two-word answer reflecting the horizontal and vertical justification settings.
  Also: More (mostly transparent) changes: Trying to get all GUI-specific calls out of the C code. To this end, removed all of the config and label calls to Tcl_SetVar2 from menucalls.c and moved the original GUI functions into xtfuncs.c (where all of the Xt GUI calls reside). Tag callbacks for "config" and "label" in the wrapper script now handle the Tcl variable setting (to-do: "color", "border", and "fill" commands).
• posted: June 12, 2007 at 2:40am     version: 3.6     revision: 98
  2007-06-11 23:31 tim Miscellaneous bug fixes, including a few involving the ISO-Latin2 through 5 encodings (thanks to Ahmet Nurlu for the bug report), and a fix of the "LED" library object to match yesterday's changes to the expression parameter syntax.
  Also: Also: Corrected a bug noted by Dimitri Princen that allows two substrings to be parameterized under the same parameter key.
• posted: June 11, 2007 at 2:40am     version: 3.6     revision: 97
  2007-06-10 20:14 tim Changed the notation for parameters used inside Tcl expressions from "%" to "@", because the former is interpreted by PostScript interpreters (e.g., ghostscript) as a comment line and causes an immediate failure of the output rendering.
  Also: Another correction allowing parentheses after parameters in expressions.
  Also: Final change for parameterized points---splines, polygons, and paths get any parameterized point positions recalculated on the fly during edit mode, so that constrained points cannot be edited.
• posted: June 8, 2007 at 2:40am     version: 3.6     revision: 96
  2007-06-07 20:49 tim Added a tag callback to "config" to allow configuration changes made from the command-line or startup script to properly set the checkbox in the GUI window. Also, added an escape "%#" to tag callbacks to pass the number of arguments given to the original command. This allows tag callbacks to more easily handle such situations as the above, where "config " is used to query a value and "config " is used to set it. The tag callback is set up such that setting an option (3 arguments) invokes the callback procedure, while querying an option value ("config ") does not.
  Also: Changed the reading of paths such that when an endpoint shared between two parts of a path is parameterized, the parameter is applied to both path parts.
• posted: June 5, 2007 at 2:40am     version: 3.6     revision: 95
  2007-06-05 00:27 tim Corrections in response to bugs reported by Seppo Silaste, but which also address similar issues reported by others. Namely, the use of "config search" in the .xcircuitrc file causes xcircuit to crash because xcircuit is no longer able to find font files. The problem was traced to a separate file-open routing for the font encoding files, which would find the encoding and assume the font file would be read correctly, while the actual font file was searched for by libopen(), which would fail to search the fonts/ subdirectory. Both routines have been merged into one, which ensures that a subdirectory called fonts/ is automatically in the search path, and failure to load a font file after an encoding file has been correctly read raises an error condition.
• posted: May 23, 2007 at 2:40am     version: 3.6     revision: 94
  2007-05-22 21:58 tim Bug fixes from Dimitri Princen (thanks!), for some serious problems like infinite looping when moving an object in a library page, buffer overflow in W0vprintf, and failure to cancel tracking in arc editing.
• posted: May 1, 2007 at 2:40am     version: 3.6     revision: 93
  2007-04-30 08:19 tim A few changes needed to prevent segfaults while tracking down an error in Tcl-based XCircuit under Ubuntu 7.04.
• posted: April 28, 2007 at 2:40am     version: 3.6     revision: 92
  2007-04-27 16:54 tim Corrected an error from the most recent revision that causes xcircuit to crash when reading a file from the menu where the "library replace" is set to the default "(user)".
• posted: April 23, 2007 at 2:40am     version: 3.6     revision: 91
  2007-04-22 10:44 tim Corrected an error that blows away circles (and random other things, as well) if an "edit arc" operation is canceled with the edited object's radius at zero (i.e., the code that was supposed to prevent the creation of zero-radius arcs was incorrectly called during a cancel operation).
• posted: April 22, 2007 at 2:40am     version: 3.6     revision: 90
  2007-04-21 15:19 tim Restored XCircuit's ability to find the "dot" object when placing a dot at wire crossings, which had become disabled due to the namespace renaming of "dot" to "::dot", causing XCircuit to use filled circles instead of the dot object. Now, XCircuit will find the first object in any technology whose name is "dot".
  Also: 2007-04-21 22:31 tim Also: Corrected an error in tclxcircuit.c that causes XCircuit to crash when running sue_xc.tcl procedure "make_sue_gate".
  Also: Corrected the library object replacement mechanism to act on technologies, not on library pages. Thus, the "-replace" argument to a "load" or "page links load" command should be followed by a technology namespace. Still to be done: Allow a comma-separated list of technology namespaces to replace from, and/or allow multiple uses of "-replace", one for each namespace to replace incoming objects from.
• posted: April 21, 2007 at 2:40am     version: 3.6     revision: 89
  2007-04-20 08:09 tim Reversed the comments in CHANGES and changes.html on the website, since it is the latter that is up-to-date, as gently pointed out by Romano Giannetti.
• posted: April 18, 2007 at 2:40am     version: 3.6     revision: 88
  2007-04-17 10:26 tim Changed the configuration script to handle Tcl run-time libraries in /usr/lib64/. Probably not the end of this issue. . .
• posted: April 17, 2007 at 2:40am     version: 3.6     revision: 87
  2007-04-16 22:53 tim Corrected a netlisting error that caused global nets to be broken up into unconnected pieces in the netlist.
• posted: March 23, 2007 at 2:40am     version: 3.6     revision: 86
  2007-03-22 16:02 tim Applied a patch by Greg Warwar that fixes the Tcl netlist format (apparently broken due to recent changes made in the way the netlister subroutine is called).
  Also: Also, corrected an error in the "auto unnumber" routine where a fix was applied in one place but not in the other.
• posted: March 21, 2007 at 2:40am     version: 3.6     revision: 85
  2007-03-20 22:24 tim Corrected the "Make Label" menu command so that it properly reverts to making plain text after one has switched to pin, global, or info label mode. Thanks to Greg Warwar for the bug fix!
• posted: March 15, 2007 at 2:40am     version: 3.6     revision: 84
  Minor correction to the "page links load" command, which did not properly compare filenames against already-loaded symbols and thus could confuse objects with similar names.
• posted: March 10, 2007 at 2:40am     version: 3.6     revision: 83
  Correction to make textpos and textend part of the areawin structure; otherwise, switching between windows during text edit causes XCircuit to get into a confused state.
• posted: March 9, 2007 at 2:40am     version: 3.6     revision: 82
  Additions to the netlister to allow any format to be written to a netlist instead of just "spice", "sim", and "pcb". Adding "flat" to the name forces flattened netlisting instead of hierarchical, for any format (except pcb). Also, corrected the info label parser so that, e.g., "%pX" instead of %p"X" will preserve the ending quote. Also, corrected the netlister so that attempting to generate a netlist from a symbol view does not crash the program.
• posted: March 8, 2007 at 2:40am     version: 3.6     revision: 81
  Corrected a string allocation error in the library object renaming routine.
  Also: Also: Corrected the "write all" function to properly save technology (.lps) files (error was a holdover from the time before library pages and technology files were treated separately).
• posted: March 7, 2007 at 2:40am     version: 3.6     revision: 80
  Corrected a very bad error that causes xcircuit to crash if any object is picked up from a library while the "parameters" menu is mapped. Also, corrected a more subtle error in which XCircuit will confuse a parameter name with an instance name in an input file and incorrectly assume that a label on multiple lines is an instance call.
• posted: February 11, 2007 at 2:40am     version: 3.6     revision: 79
  Changed the analog and analoglib3 libraries on suggestion of Eric Davis to make the "inductor" symbol the same length as the resistor and capacitor symbols, and with the loops centered on the origin.
• posted: January 19, 2007 at 2:40am     version: 3.6     revision: 78
  Implemented left-right scrolling with Shift+(mouse scroll wheel), as per the suggestion from Joel Kuusk.
• posted: January 6, 2007 at 2:40am     version: 3.6     revision: 77
  Corrected an error that prevents instance values of expressions from being copied into a new instance; e.g., when a "quadparts" symbol is picked from the library page. Thanks to Chris Head for the bug report.
  Also: Corrected a bug that causes xcircuit to crash when writing a file with more than one non-default parameter expression in a single instance (in particular, applies to the "LED" symbol).
• posted: January 2, 2007 at 2:40am     version: 3.6     revision: 76
  Corrected the TCL "param" command to fix the error in which creating a substring parameter with the default taken from a selected substring no longer works. Thanks to Chris Head for the bug report.
• posted: December 19, 2006 at 2:40am     version: 3.6     revision: 75
  Added some checks that prevent XCircuit from crashing if no fonts are present.
• posted: December 18, 2006 at 2:40am     version: 3.6     revision: 74
  Minor correction to examples/.xcircuitrc.py so that it points to the correct installation directory for xcircuit-3.6 runtime files. Changed the auto-increment routine to preserve leading zeros, except that I don't like this version, either, and it will likely get changed again until I'm happy with it. Presently, forcing the routine to preserve leading +/- sign and leading zeros causes its behavior to get rather weird when incrementing/decrementing around zero.
• posted: December 9, 2006 at 2:40am     version: 3.6     revision: 73
  Changed the "filelist" widget so that it can accept multiple file extensions for the file filter. Added a check for the ImageMagick "convert" tool in the XCircuit wrapper script. If the command "convert" is found, then the "import graphic image" menu option is allowed to handle all major graphic image types, including other PostScript and PDF, by simply converting to raw PPM format (and discarding the file after reading it in).
• posted: November 29, 2006 at 2:40am     version: 3.6     revision: 72
  Additional refinement to the file writing routine, to avoid unnecessarily printing instance values of expressions that match the default. This cuts down on the output size when expression parameters are used copiously.
  Also: Correction to a misplaced #ifdef...#endif that prevented the non-Tcl version of XCircuit from compiling.
• posted: November 28, 2006 at 2:40am     version: 3.6     revision: 71
  Hopefully the last set of corrections to the expression parameter code. Also supports colors through parameters, at least on a proof-of-concept basis.
  Also: Made changes necessary to implement parameterized colors.
  Also: Finished up changes for parameterized color handling, and added the "LED" digit symbol to the digital library (Tcl version only).
• posted: November 27, 2006 at 2:40am     version: 3.6     revision: 70
  More corrections to the expression parameter handling, especially as relates to the use of expression parameters for numeric parameters such as position.
  Also: 2006-11-27 02:40 tim
• posted: November 26, 2006 at 2:40am     version: 3.6     revision: 69
  Modified parameter handling to allow numerical parameters of elements to be set as expressions from the command-line, and to allow expressions to access specific properties of the object instance (rotation, position, etc.). For example, one can make rotationally-invariant text by selecting a label in an object instance and executing the command "parameter make rotation {expr -%p_rotation}".
  Also: Added some more '%' escapes that can be used in expression parameters to get the values for the scale, rotation, and position of the top-level drawing (thus the expression "expr -%p_rotation" only counter-rotates to the local rotation of the instance in which it occurs, whereas the new expression "expr -%p_top_rotation" is truly rotation-invariant.
• posted: November 24, 2006 at 2:40am     version: 3.6     revision: 68
  Addition to the handling of "quadparts" library components: After determining that two object instances have the same device index, XCircuit checks the pin names for each port in each instance. If any pins have the same pin name at the same port location, it flags the usual warning of "Duplicate component U1 and U1" (say). Otherwise, it ignores the condition.
  Also: Corrected an error that prevents XCircuit from importing from a library that is specified as a full path when the search path has been set.
• posted: November 23, 2006 at 2:40am     version: 3.6     revision: 67
  Corrected the last major error with the graphic image type, which was an incorrect image refcount that would cause the image source to get obliterated while a graphic was still in the drawing (which would cause xcircuit to crash).
  Also: Made an additional change to the graphic image handling, so that XCircuit does a bounds check before recomputing the image at a different scale and/or rotation. Off-screen graphics do not have their target images regenerated.
  Also: 2006-11-23 02:40 tim
• posted: November 22, 2006 at 2:40am     version: 3.6     revision: 66
  Finished corrections to the new behavior regarding expression parameters, especially to fix errors when loading and saving the "quadparts" library.
  Also: Another couple of corrections, mainly to avoid attempting to load a library using the loadfile() routine, when the library is specified on the command line. Also, disallowed the use of "push" in library and page directories, which puts xcircuit in a not-so-useful state.
• posted: November 21, 2006 at 2:40am     version: 3.6     revision: 65
  Corrected the netlister so that the "quadparts" library once again generates correct pcb-style netlists. Added a new method for expression parameters so that "%" will substitute the parameter value prior to executing the expression parameter. This makes it easier to derive parameter values from other parameters without inserting "[param get]" statements and worrying about which level it's executed in. This method was added to the "quadparts.lps" library. Added a new method for "pcb:" info labels. The string "pcb:" may be followed by a space and then any number of statements "=" to declare global pin assignments on the part. For example, "7=GND" sets pin 7 to the global net "GND".
• posted: November 16, 2006 at 2:40am     version: 3.6     revision: 64
  2006-11-15 12:18 tim Corrected the most serious error with graphic images, which was the recalculation of the target image. Instead of having a valid/invalid flag, it now saves the rotation and scale of the target image relative to the top level. On every graphic draw, it compares the rotation and scale against the saved values and determines if the target image needs to be regenerated at the new values. Now it is possible to put graphics inside other objects or have copies of a graphic at different scales and rotations on the same page without causing problems. Also, corrected an error that would automatically merge two schematics into a primary-secondary relationship. Automatic merging should never be done; it should always be an explicit command.
  Also: Completely removed all automatic manipulations of the primary/secondary relationship between schematics. Added the command option "netlist unconnect" to allow a secondary schematic page to be disconnected from its primary (a bit of an oversight to be missing that function. . .)
  Also: Finally corrected the flate decode error on read-in of graphic images (incorrect handling of the final set of characters; the flate encoding of the output was always correct).
• posted: October 24, 2006 at 2:40am     version: 3.6     revision: 63
  2006-10-23 10:18 tim Changed the Makefile.am to reorganize the -L and -l library inclusions. This helps make sure that Tcl/Tk libraries get picked up from the correct place (previously, if a Tcl/Tk version you don't want was installed in the X11 libraries path, then this would be picked preferentially regardless of any specific statements about the path to the version you do want). Thanks to Chris Head for pointing out the problem and helping to debug it.
• posted: October 23, 2006 at 2:40am     version: 3.6     revision: 62
  2006-10-22 18:59 tim Corrected an error in the netlister that exceeds the bounds of a character array due to an incorrect use of "sizeof()". Thanks to Kos Gitchev for the bug report.
• posted: October 20, 2006 at 2:40am     version: 3.6     revision: 61
  2006-10-19 14:11 tim Changed the netlister so that single nets that happen to use bus delimiters are treated correctly as single nets (previously, this condition was flagged as an error and the net name was replaced with an internally-generated node name). Thanks to James Stine for pointing out the error (among others that I haven't gotten around to fixing yet).
• posted: October 14, 2006 at 2:40am     version: 3.6     revision: 60
  2006-10-13 12:27 tim Finally got around to correcting the error that prevents changing a page's filename to an empty string. Doing so is supposed to unlink the page from other pages of the same name, allowing a single page to be broken out of a multiple-page file and saved separately. The "schematics" checkbox button at the top of the file output properties window now works again.
  Also: Changed floating point output to 3 significant digits instead of 2.
• posted: October 2, 2006 at 2:40am     version: 3.6     revision: 59
  2006-10-01 12:33 tim Corrected the handling of the "libinst" keyword in library files to be backwardly-compatible with files that lack technology namespaces.
• posted: September 15, 2006 at 2:40am     version: 3.6     revision: 58
  2006-09-14 15:44 tim Made some changes to the "page" command to allow the option "page -force", which is like "page " unless exceeds the number of existing pages by 1, in which case the command acts like "page make".
• posted: September 14, 2006 at 2:40am     version: 3.6     revision: 57
  2006-09-13 13:30 tim Added a feature to rebind the middle mouse button in text create and text edit modes to paste selections from the system clipboard. The left mouse button continues to finish the text create or text edit operation.
  Also: 2006-09-14 02:40 tim
• posted: September 11, 2006 at 2:40am     version: 3.6     revision: 56
  2006-09-10 07:59 tim Changes to the handling of paths: join, unjoin, and path edit now are all properly handled by the "undo" mechanism. Arcs are not allowed in paths but are decomposed into spline approximations to avoid problems caused by rotations (ellipses in xcircuit don't rotate; probably they should). Path editing has been made more intuitive, and prohibits separating joined points. The "break at point" function during polygon edits has been removed. It will be (but has not yet been) replaced by extending the "unjoin" function to a tool and allowing "unjoin" to act like "break at point" on polygons, and hopefully also on paths, labels, and arcs.
  Also: Another small correction to fix the keybindings printed in the message bar when editing a polygon.
• posted: September 3, 2006 at 2:40am     version: 3.6     revision: 55
  2006-09-02 10:45 tim Corrected an error in file dependency loading: "%n" in a "link" parameter refers to the base object name, not the fully qualified name with technology prefix.
• posted: September 2, 2006 at 2:40am     version: 3.6     revision: 54
  2006-09-01 10:53 tim A number of corrections to the code for moving connected wires along with object instances. Also, expanded the code to move connected wires along with pin labels on the top level (not just pins inside instances). Expanded the code to include connections at wire internal points, and to enforce manhattan layout on such internal points during moves, if the manhattan draw option is selected.
  Also: Correction to polygon/curve/arc editing to correct the "cancel last" operation, which was screwed up by yesterday's code changes.
• posted: September 1, 2006 at 2:40am     version: 3.6     revision: 53
  2006-08-31 16:46 tim Got around to doing one of the long-standing "to do" items: make "attach" work in many more situations. "attach" (Shift-A binding) will now attach wires to pin label position points and to pins inside object instances. If "A" is typed in normal mode, then it starts a wire attached to the closest attachment point. It can also be typed while drawing a wire (not just editing, as before), thus anchoring the point of the wire. Also: Improved the Manhattan wire-drawing mode, so that it is both more intuitive (follows the cursor and adjusts the previous point to maintain the horizontal or vertical alignment of the wire, rather than adjusting the current endpoint), and easier to access the option (duplicated under the line menu in the toolbar). Also: Internal changes to the way editing functions cycle through points in polygons, arcs, splines, and paths should make it relatively easy to implement 1) editing of multiple elements at once, and 2) constrained object instance moves that keep wires attached to pins through the move.
  Also: Implemented pin-constrained movements. If option "Wires Stay Attached to Pins" is selected, then wires whose endpoints terminate on object instance pins are adjusted to stay connected to those pins. This works especially well with the "Manhattan Draw" option. There are a number of refinements that need to be made, but this is a reasonable start.
  Also: 2006-09-01 02:40 tim
• posted: August 25, 2006 at 2:40am     version: 3.6     revision: 52
  2006-08-24 13:11 tim Fixes to remove references to TclCheckBadOctal() (which may or may not be defined by the Tcl shared object library), and to change the reference to the library list widget to the technology list widget in the file load prompt window. Thanks to Jan de Kruyf for the bug reports.
• posted: August 24, 2006 at 2:40am     version: 3.6     revision: 51
  2006-08-23 10:12 tim Corrected the A4 page bounding box (fix by jan de kruyf), and corrected an error in which numerical parameters (those beginning with "p_") were not supposed to get a leading "@" character when printed to the PostScript output (bug report by jan de kruyf).
  Also: Corrects some problems with the library and technology selection from dialog boxes. In particular, it allows newly-created objects to be placed on the library page of choice, and allows both the library page and technology name to be specified when creating a new object. If the current technology is other than "user" or null, then the prefix is automatically printed to the text entry box.
• posted: August 20, 2006 at 2:40am     version: 3.6     revision: 50
  2006-08-19 20:39 tim Some changes to 1) allow "%n" escapes in info labels to discard technology prefixes from the resulting name, and 2) correctly read unqualified names from the "is_symbol" and "is_schematic" fields in a file and correctly associate the correct symbol and schematic.
• posted: August 14, 2006 at 2:40am     version: 3.6     revision: 49
  2006-08-13 10:51 tim Corrected handling of "technology save" so that it properly generates the filename, and handles cases where the filename is changed. Updated the "make matching symbol" script so that it properly generates the right technology namespace prefix on new symbols. Thanks to Oliver Banzhaf for the bug reports.
  Also: Applied a patchset by Jan de Kruyf, fixing a couple of missing NULLs in the Tcl option lists, and generally cleaning up the mess I leave behind when I make wholesale changes to the code. Corrected some of the patch code for compliance with the non-Tcl version, as well as a few other changes necessary to get the non-Tcl version to compile.
  Also: Fixed a bug reported by Tony Laneve in which the new method of handling key events disabled the ability to type backslash characters when in LaTeX mode.
• posted: August 5, 2006 at 2:40am     version: 3.6     revision: 48
  2006-08-04 17:15 tim Corrected a crash condition that happens when the "library" command is given with an incorrect option (no NULL at end of list of option strings).
• posted: August 4, 2006 at 2:40am     version: 3.6     revision: 47
  2006-08-03 19:59 tim Another correction from Jan Sundermeyer for the EDIF parser script. The script now correctly handles array labels (labels with bus notation), and label references to global nets (gnd!, vdd!).
• posted: July 31, 2006 at 2:40am     version: 3.6     revision: 46
  2006-07-30 10:48 tim More of Jan Sundermeyer's additions to the EDIF file reader script. Also, fixed a bug that caused XCircuit to crash on creation of an empty string from the command-line command "label make normal "" {0 0}".
• posted: July 25, 2006 at 2:40am     version: 3.6     revision: 45
  2006-07-24 14:31 tim Some major changes: 1) Implemented the patch to edif.tcl submitted by Jan Sundermeyer 2) Corrected a few minor errors, such as the output properties window tracking page changes when changed via the number keys 3) Switched over to the analoglib3 library, replacing analoglib2 (finally!). 4) The biggest change: Implemented technology namespaces. XCircuit now **correctly** (barring bugs in the new code) distinguishes between library pages and library files. Each file defines a "technology", and each object in the file gets a name "::