change_log.txt

/*******************************************************************************

20060708
- [CAF, linux] Fix deprecated option to "tail" command (affects only
  installer).

5.0.1.20060413
- No changes, but now is release candidate.

20060325
- [RJL, all] Fixed more typos in the help docs.
- [CAF, linux] Updated wxWidgets patches and installation instructions.

20060323
- [RJL, all] Changed default symmetry angle for empty trees to 90 degrees.
- [RJL, all] Added discussion of color scheme to the View Settings window docs
and fixed a few typographical errors.
- [RJL, all] Changed RADIAN and DEGREES constants to be declared as constant
values rather than computed expressions, which fixed a problem in Intel Mac
builds (and only there) in which these constants were being given a value of 0.
- [RJL, all] Renamed Pi to PI, Two_Pi to TWO_PI for consistency and eliminated
const-ness of some return values for consistency.

5.0.0.20060309
- [RJL, all] Fixed a bug in the Path Combo inspector in which changing the
condition type wasn't always getting applied.
- [CAF, linux] - window fitting commands require WM hinting in some desktops;
make doc windows slightly less tall so bottom isn't hidden in some desktops.
- [CAF, all] Number pad delete key now deletes conditions in inspector (along
with backspace and fwd delete).
- [CAF, linux] Fixed missing double-click events in wxGTK list boxes
- [ABX, MSW] Printing dashing fixed.

20060308
- [CAF, Linux] Restored quit-on-close to match MSW behavior.

20060307
- [CAF, linux] invoke updating of user interface events in UpdateAllViews -
should patch the "unresponsive key after menu" issue in wxGTK
- [CAF, linux] like we did before in tmwxDocManager.cpp::OnFileClose (for closing
doc via menu/C-W), in tmwxDesignFrame::OnClose explicitly call base's method
instead of event.Skip(); [possibly a wxGTK, not Linux, issue]. Otherwise, when
a document window is killed via title bar button, the doc is not actually
closed, orphaning the inspector windows without creating a new empty doc.
- [RJL, all] Holding down modifier key when creating a new node by clicking
keeps the current selection.

20060304
- [ABX, MSW] Inspector and View Settings in on top when needed and on
background when unneeded. 
- [ABX, all] Added wrappers for range selection so it not influence existing
quality but is available for further development (just define
TM_WITH_RANGE_SELECTION macro in IDE/build). 
- [ABX, all] Assert during menu creation fixed.

20060228
- [RJL, all] Fixed a bug in tmConditionNodesCollinear in which deleting one of
the nodes could cause a crash.
- [RJL, all] Fixed an incorrect label in display of edges same strain condition.
- [RJL, all] In tmwxDesignCanvas::UpdatePaperSize, changed order of resizing
virtual image and resizing frame (frame now resized first) to avoid flicker
(that was only a problem on linux).

20060227
- [RJL, all] Rewrote Fit-to-[something] routines in tmwxDesignCanvas and
related supporting routines. Now supports user changes in monitor size and menu
items are enabled iff the command would alter the window position or size. Also
fixed several uninitialized members in tmwxDesignCanvas. Renamed several
tmwxDesignCanvas variables and routines.
- [RJL, all] Set paper size dialog is now initialized with current paper size.
- [RJL, all] Replaced a bunch of public member framework-related variables with
private members and public getters (to separate read/write access).
- [ABX, MSW+linux] Standard menu items are decorated with icons. (not on Mac.)
- [ABX, all] Drag & drop is supported.

20060226
- [RJL, all] Fixed a bug in the Node Fixed to Position dialog, in which checkbox
values were being ignored.
- [RJL, all] replacement of assorted ".size() == 0" with ".empty()" calls.
- [RJL, all] Eliminated superfluous arguments in tmwxTextCtrl::ValidateSizeT.
- [RJL, all] Fixed a bug in tmTree::AbsorbNode() in which mIsLeafNode and
mIsLeafPath flags were not getting updated properly in tmTree::AbsorbEdge.
- [ABX, all] Added check to Fit... commands so that they're not doubly executed
if the paper is already fit to the screen in one or the other direction.

20060224
- [ABX, all] Implemented View->Fit to Width and View->Fit to Height, added docs.
- [ABX, MSW] Added modified setup0.h (wxWidgets file) to turn off unnneeded
parts of wxW to reduce file size.
- [RJL, all] Replaced static arrays sCalcLocFns, sAddConditionFns, sSelectionFns
with singleton functions to delay initialization (resolving potential
intialization order issues). Also reimplemented debugging stringstreams with
initialize-on-usage.
- [RJL, all] Fixed an issue in node absorption that could cause a crash if a
crease pattern was present.

20060223
- [RJL, all] Fixed a bug in tmStubFinder::TriangulateTree in which encountering
of a non-splittable order-4+ tree (yes, it happens) caused a crash. Updated the
docs to note the possibility.
- [RJL, all] Fixed a bug in the display of a group selection (edges improperly
displayed). As part of that, implemented copy ctors and assignments in class
tmDpptrArray<T> to eliminate the underlying weakness (shallow default
ctor/assignment) that led to the bug.
- [RJL, all] Disabled Edit->Paste command (not used by any of our classes).
Framework still enables/handles for text controls.
- [ABX, all] Mouse event handler doesn't eat unused events to enable receiving
context menu event.
- [ABX, all] Context menu implemented; works both using keyboard context key
and right click from mouse. It just duplicates content of edit menu which is
handy in case of large space.

20060222
- [ABX, all] Fixed some typos and glitches in tmwxApp that were preventing
build on MSW.
- [RJL, all] Added some discussion of deletion (under Edit->Clear) to the help
docs.

20060221
- [CAF, linux] simplified code for small widgets; improved wxWidgets's circle
rendering for GNOME printing
- [RJL, all] Splash screen is now in its own routine, which happens at different
places in OnInit() depending on platform (later on Mac, earlier on Lin/Win).
- [ABX, MSW] fixed sometimes broken copying of data between new instance and
master instance
- [RJL, all] Renamed overloaded tmwxDocManager::GetCurrentDocument() and
GetCurrentView() to GetCurrentDocumentLocal() and GetCurrentViewLocal() to more
clearly distinguish from the non-virtual versions that will still be called by
the framework. Also, fixed a bug in which our parallel copy of the current
document (tmwxDocManager::mDoc) wasn't getting cleared immediately, which
allowed idle menu update events to get sent to a dangling pointer if the
timing was right.
- [RJL, all] Fixed a model bug in which tmConditionPathCombo's were not getting
deleted from non-leaf paths.

20060220a
- [RJL, all] Number formatting is consistent: scale, tree coordinates, strain, 
stiffness formatted as %.4f; angles formatted as %.2f.
- [RJL, all] "Set Edge Length" dialog initializes with current edge length if
selection consists of a single edge.
- [RJL, all] Dropped wxSTAY_ON_TOP from TMWX_MODAL_DIALOG_STYLE because it was
staying on top of wxMessageBox error alerts within the dialog (wxWidgets bad).
- [RJL, all] Changed all calls of wxMessageBox to one of three twmxAlertXXX
routines to enforce consistency.
- [RJL, all] Cleaned up dialog validation routines to use tmwxCtrl validation
routines as much as possible (again, to enforce consistency).
- [RJL, all] Fixed outline levels in help docs contents
- [ABX, MSW]
  1. fixed crash in tmwxApp::ProcessEvent() - app event should work without any
  window (as it happens at the end of application running).
  2. added single instance checker so new documents are launched instead of new
  instance of application
  3. folded form frame after opening is first not last in window hierarchy.

20060220
- [RJL, all] Minor cleanup of class tmwxTextCtrl.
- [ABX, all] Minor fixes to #includes to address build issues.
- [CAF, linux] Patched wxWidgets (GNOME printing interface): circles don't
print 3/4 as tall as they should. Still must fix clipping bug.
- [CAF, all?] Patched wxWidgets (docview.cpp) preventing crashes when opening
files at command line not named *.tmd5

20060219
- [RJL, all] Cleaned up various dialogs in tmwxDoc_Edit.cpp to use
tmwxGetUserInputDialog methods.
- [RJL, all] Expanded discussion of path quantization condition in docs. Fixed
incorrect figure Ti-5-10.
- [RJL, all] Major change to event processing; overrode tmwxApp::ProcessEvent
to route events to doc manager and/or help frame. Added print-from-menu to help
frame.
- [RJL, all] Replaced global accessor routines with pointers (e.g., replace
tmwxGetInspectorFrame()-> with gInspectorFrame->). Also added checks for NULL
pointers in several places that could have an effect during initialization and 
exit.
- [RJL, all] Moved splash screen even later in OnInit(); AppleEvent processing
during wxYield needs the inspector frame to exist.

20060218
- [RJL, Mac] Moved splash screen to later in OnInit(), which on Mac, was
getting in the way of AppleEvent processing for opening files on application
launch. This fixed the problem whereby double-clicking on a document launched
the application but failed to open the document.

20060217
-[ABX, all] minor fixes to new dialogs in tmwxDoc_Edit.cpp.
- [RJL, all] Fixed a bug in node absorption that sometimes led to corrupted
data structure (superfluous paths).
- [RJL, all] Turned off wnlib optimizer since it can't easily be made exception-
friendly.

20060216
- [ABX, all] Assorted changes to frame activation code to fix problem with
command destination with multiple documents present.
- [RJL, all] Altered constraints so that certain ill-set-up strain minimizations
(e.g., 3-tree, one strained edge, no active paths) will not hang, will merely
fail to converge.
- CAF, linux] Changed behavior so that closing the last document reopens a
blank document (requires wxGTK-specific code)
- CAF, linux] installation copies compressed change_log.txt. Graphical
installer has a button for showing it before installing
- [CAF, all] experimental code in edge splitter dialog - see symbol NO_CAF in
tmwxDoc_Edit.cpp
- [RJL, all] Fixed a bug in which symmetry conditions were being applied during
optimization even if the symmetry line was not turned on.

20060215
- [RJL, all] Fixed a bug in Split Edge dialog in which node index wasn't
correctly reported.
- [RJL, all] Fixed a bug in the calculation of path feasibility for path active
and path combo constraints.
- [RJL, all] Reverted the convergence check in ALM to the check used in 20060211
and before. This still leaves a bug: 3-legged tree, strain one edge, C-3 sends
into infinite loop.
- [ABX, mostly MSW] Assorted UI changes:
  1. More native palettes as requested by Marc (tmwxPaletteFrame.cpp)
  2. Close box for user input dialog.
  3. In user input dialog there was Center() in flags for buttons. It is not
  consistent with other dialogs by wxWidgets.
  5. In user input dialog with more input fields labels are top aligned with
  text fields which doesn't look nice. Sorry, had no time yet to modify this
  myself.
  6. In user input dialogs focus (at least on MSW) needs to be applied when
  dialog content is completed.
  7. I added accelerators which work regardless which of the frames is active
  (see changes in tmwxApp.* + palette and folded form frame source)
- [RJL, all] Removed static line separator between fields and buttons
(compatibility w/ Apple HIG) (thx ABX for pointing out). (Alas, changes some
help doc images which need updating).
  
20060214
- [ABX+RJL, all] RJL's changes to OnActive broke MSW; reverted to ABX's addition
of tmwxDesignFrame::ProcessEvent(), which still doesn't fix Mac but at least
doesn't break MSW.
- [ABX] Fixed a bug in tmwxDesignCanvas::TreeToDC that broke MSW printing.

20060213
- [RJL, all] Fixed a bug in ALM optimizer that led to hang when all constraints
are feasible (e.g., strain minimization with no active paths).
- [RJL, all] Fixed a bug in tmwxConditionListBox in which the node index was
being improperly reported for tmwxConditionCombo when one constraint applied.
- [ABX, msw] Updated README.txt
- [CAF, linux] Updated README.txt
- [CAF+RJL, linux] Modified behavior on closing last doc to reopen a new empty
doc (only under linux).
- [RJL, all] Updated help docs to reflect platform-specific behavior when last
doc is closed.
- [RJL, all] Added NaN detection macros and sprinkled a few throughout the ALM
optimizer to aid in debugging.
- [RJL, all] Added call to tmwxDocManager::ActivateView() to tmwxDoc::OnActivate
so that doc manager can properly keep track of which view currently has the 
focus. (Doesn't completely fix the problem; more investigation needed.)
- [RJL, all] Added check to Strain Optimization menu item enabling so that item
is not enabled if the pattern is feasible and there is no strain.
- [CAF+RJL, all] Added warning dialogs within tmwxDoc::OnOptimize* routines
(although they shouldn't be needed if menu enabling works properly).
- [CAF, all] Added exception in tmPart::GetPOD() for corrupted numerical data.

20060211
- [RJL, all] Finished updating Tips figures; all doc figs should be up to date.
- [RJL, Mac] Updated XCode project to build Universal Binary for Release build.
Adjusted optimization and symbol generation settings throughout targets.
- [ABX, Win] Updated MSW build files. Delivered beta installer build (20060210).
- [RJL, all] Small tweaks to class tmwxGetUserInputDialog appearance.

20060210
- [ABX, all] Further minor typos in help docs.
- [ABX, MSW] Updated .bkl in build files.
- [CAF, all]
  - keypad Del works as ordinary Delete key
  - [linux] shrink mini/small buttons, checkboxes and radio buttons
  - for moving pinned items, the Control key modifier may be used as an
  alternative to Alt
  - [linux] Makefile doesn't leave empty help.zip if "zip" is not installed
- [RJL, all] Tutorials 1, 2, and 3 have new figures and additional text that
talks about node circles & conditions versus constraints
- [RJL, all] Fixed a bug introduced in 20060209 that would cause a crash if you
created a condition of one type on a node that already had a condition of
another type on it.

20060209
- [RJL, all] Fixed a bunch of bad links in the Help table of contents.
- [RJL, all] Changed node condition menu item behavior so that selecting a node
condition when one already exists changes the existing condition. Added lots of
new tmTree methods (for creating conditions) that check for redundancy.
- [RJL, all] Folded form frame is only printed if it's visible.
- [RJL, Linux] Force-dragging of pinned nodes uses Control key as modifier; Mac
and Win remain Option (Alt) click to force drag. Updated docs accordingly.
- [RJL, all] Made node combo inspector more forgiving of user setting
inconsistent constraints within a condition.
- [RJL, all] Added "show border paths" to view settings, which is on in design
view; this makes they always visible, so that the presence of a single invalid
path on the boundary doesn't radically change what's shown on-screen.

20060208
- [RJL, all] Added an assertion check to tmTree::CleanupAfterEdit() to quickly
identify inconsistencies involving numbers of owned nodes and paths.
- [RJL, all] Added close box to Folded Form frame.
- [ABX, all & MSW]
  1. URLs in About window are clickable (apart html code, it needs additional
  class derived from wxHtmlWindow)
  2. Changed order in Help menu creation. It should not affect Mac because it
  takes About item into menu bar but I wonder if it is not important (in terms
  of "native") for GTK applications. On Windows About is below Help access, not
  above.
  3. On Windows keyboard accelerators are presented as "Ctrl+C" while we had
  "Ctrl-C". I guess it's because it's how Macs do it. I made it work in both
  models.
  4. Inspector and view settings dialog should be on top of design frame; added
  wxSTAY_ON_TOP flag for palettes in MSW (it's automatic in Mac).
  5. Other minor corrections in About page text.
  6. Changes in script for windows installer .
- [RJL, all] Gave tmwxGetUserInputDialog a minimum width of 300 px just because
it looks better that way.

20060207
- [RJL, all] Fixed a bug in which closing the last doc frame by clicking on the
close box did NOT quit the app on non-Mac platforms. Added new method,
tmwxDocManager::CheckLastDoc(), which takes care of the platform-dependent
check.
- [RJL, all] Fixed some bugs in the checking of writeability of the help cache
file.
- [RJL, all] Added close boxes (and close handlers) to all utility windows, 
removed them from all modal dialogs.
- [RJL, all] Changed toggle window visibility commands to Show/Hide rather than
check/uncheck.
- [RJL, mac] Updated WX_2_6_BRANCH from CVS, which fixes a wxW bug in 
wxGetSingleChoiceIndex() that manifested in the stub picker dialog.

20060206
- [ABX, all] class tmwxDoc now opens ifstream in binary mode; fixes stream input
problems on Windows.
- [RJL, all] class tmwxDoc also opens ofstream in binary mode for consistency.
- [ABX, all] Handling of new EX_IO_* classes is now unicode-friendly.
- [RJL, all] Added graceful handling of the situation when the help
cache file is located on a read-only volume (e.g., a person tries to
run the app from a Mac disk image).
- [CAF, all] Assorted cleanups of HTML help files.
- [RJL, all] Put build code in lower right corner of About box in release build.

20060203
- [CAF, linux] Updated build structure:
  - updated Makefile/installer/uninstaller copy a compressed LICENSE.txt to the
  data directory
  - directory wxwidgets has a README, customized build-wxw.sh and patched
  sources for dash/thin lines
  - README_linux has a "Known Bugs" section
- [RJL, all] Removed superfluous ConsumeTrailingSpace call from 
void tmPart::GetPOD(istream& is, tmArray<tmPoint>& aArray).

20060202
- [RJL, all] Added mToken member to all I/O exception classes so that they can
report the offending token when they throw an exception. Similarly modified
tmwxDoc::LoadObject() to report the bad token in the message box.

20060201
- [ABX, all] More fixes for unicode compatibility.
- [RJL, all] Bugfix in file I/O, in which conditions were being improperly
written to the file. This affected v5 files that contained conditions, but not
v4 files or condition-less files.

20060131
- [ABX, all] Assorted fixes for consistency with unicode builds.

20060130
- [CAF, Linux] Updated linux build system. Killed undead 32x32 icon.

20060126
- [RJL, all] Fixed bug in dialogs; now modal dialogs stay on top.
- [RJL, all] File I/O: In tmwxDoc::LoadObject(), the old tree is not overwritten
until the new one has been successfully and fully read in.
- [RJL, all] File I/O: Replaced a few remaining get(ch) with ConsumeTrailing
Space() for cross-platform uniformity.
- [RJL, all] Version 4 export doesn't store poly, vertices, creases, or facets
at all due to unresolvable model changes between v4 & v5.

20060104
- [CAF, Linux] restored icon handling code that got dropped in last update
- [RJL, model] tmPart::Endl is now friend of tmPart for C++ compliance.
- [RJL, GUI] Call to SetWindowVariant is now only on Mac; variant windows need 
explicit font & height setting on other platforms.

20060103a
- [ABX, MSW] added code for window icons under MSW.
- [ABX, MSW] implemnted tmwxOptimizerDialog_msw.cpp

20060103
- [CAF, Linux] now load two icons dynamically instead of embedding a .xpm. The
two fullscale Icon files are copied in linux/resources for customizer
convenience, but are not actually used at either build or runtime
- [CAF, Linux] assign icons to all toplevel windows
- [CAF, Linux] polished build/install procedure

20060101
--Accepted UI edit from ABX (although I changed tmwxStaticBoxBorder to
tmwxSTATIC_BOX_BORDER since it's a constant)
--Added msw-specific files from ABX
--Added script for building a Mac disk image for distribution

20051231
--Added ABX's files to the msw directory.
--Redesigned mac build structure and rewrote scripts to allow one-step build
directly from the TreeMaker distribution by running the script build-all.sh
from within the mac directory.
--Updates to some of the help docs.
--Fixed capitalization inconsistencies in command names, menu entries, and
inspector panels.
--When exporting to v4 on Mac, set the creator and type properly for TM4 to
read.
--Fixed a bug in which TM4 files that contained NAN(017) weren't read properly
(previously fixed, but adding tmPart::ConsumeTrailingSpace() broke it).
--Added static member tmPart::sEndl, class tmPart::Endl, and modified assorted
PutPOD routines so that line ending character could be changed dynamically, so
that version 4 exporting uses Mac '\r' line ending.

20051228
--Fixed a bug in which tmConditionEdgesSameStrain::CalcFeasibility() wasn't
properly calculated.
--Updated the help file treemaker.hhc (help table of contents)
--Fixed a bug in the display of discrete depth in the Vertex inspector panel.
--Accepted Carlos's edits re command-line arguments & icons under linux
--Reorganized distribution directory structure to separate platform-specific
files
--Changed paths in TreeMaker.xcodeproj and modified associated scripts to
reflect new directory structure
--Added Carlos's files for linux directory
--Accepted ABX's edit to tmwxRadioBoxSmall (replace Node w/
compatibility_iterator).

20051221
--Further help doc changes.
--Added tmwxDoc::Revert(), which implements the File->Revert command.
--Moved some global routines from tmwxCommon.h/cpp into tmwxApp.h. Renamed
tmwxCommon.h/cpp to tmwxStr.h/cpp, since that's all that's left.

20051219
--Renamed panel OnTextEnter() method to OnApply() and added Apply buttons to all
such panels because some users might want to use the mouse.
--Further fixes to tmVersion.h to remove errors introduced in hasty previous
iteration.
--Small edits on the help docs. Added treemaker.css for standalone web viewing.
--Turned "show node circles" back on as the default.
--Fixed a bug in tmTree::SplitEdge(..) in which splitting an edge with a crease
pattern present would cause a crash.
--Redesigned and recoded the "connectedness" check in facet graph construction;
TM now can do full crease assignment for many more crease patterns, even with
disconnected corridors. Changed tmTree::mIsCorridorConnected to
tmTree::mIsLocalRootConnectable.
--In inspector panel "extra" info in debugging builds, put array data on their
own line (single-element data is still doubled up).
--Wrote help/tips_4.htm.
--Lightened the splash screen artwork & brought contents up to date.
--Implemented delayed initialization for all static vectors and strings in the
tmModel dynamic type system to eliminate possible static initialization order
problems.

20051215
--Rewrote panel OnTextEnter() methods to fully validate before updating the
model.
--A few more changes to tmVersion.h, to adopt ABX's macros.

20051214
--Added Carlos's 12/07 edits to the help docs.
--Added ABX's 12/12 cleanup of code.
--Changed serialization format again; version 5 conditions store their index
(like all other parts) and their feasibility. This fixes a bug in which read-in
objects didn't have condition feasibility properly set.
--Rewrote tmVersion.h to clean up the generation of application name strings.
--Rewrote assertion code in tmHeader.h/cpp to streamline it and enable both
Debug and Development builds to dump tree state on assertion failure.
--Fixed a really annoying bug in tmwxCommand in which 
DoSomething-Undo-Redo-Undo-Redo would cause a crash.
--Added ABX's 12/12a cleanup and implementation of MDI under Windows.

20051212
--Wrote help/tips_3.htm.
--Added letter codes to node combo condition display in tmwxDesignCanvas to
show what's been applied.
--Added classes tmConditionPathCombo.h/cpp and tmConditionPathComboPanel.h/cpp.
--Defined new Condition menu commands to use tmConditionPathCombo for path
constraints. Distinguish v4 conditions in all command names.
--Changed CalcFeasibility() for symmetry conditions to be *infeasible* if the
symmetry line is not defined.
--Rewrote feasibility checks for all constraints to use the same functions that
are used in the optimization.
--Reordered all validation/updating code in Inspector panels' OnTextEnter()
methods to insure that everything is validated before anything is updated.
--Shattered tmwxDoc::OnUpdateUIOrCommand() into a million individual command
handlers and split them among files: tmwxDoc_File.cpp, tmwxDoc_Edit.cpp,
tmwxDoc_View.cpp, tmwxDoc_Action.cpp, tmwxDoc_Condition.cpp, tmwxDoc_Debug.cpp
--Cleaned up tmwxApp command handlers in the same way (but they're still in
twmxApp.cpp).
--Added class twmxGetUserInputDialog.h/cpp.
--Added tmwxCheckBox.h/.cpp.
--Tweaked names of condition menu items.
--Added command handlers to tmwxApp to reroute commands that should have gone
to the document manager (including File->Revert).
--Added some debug code so that in a Development build, an assertion failure
dumps the state of the tree at the beginning of (a) BuildPolysAndCreases() and
(b) CleanupAfterEdit, as an aid to debugging.
--Fixed a bug in tmFacet::GetSelfv5() which caused a spurious "file corrupted"
error if the stored value of tmFacet::mCorridorEdge was 0 (NULL ptr).
--Added ClearCleanupData() methods to several model objects to insure that
cleanup fields are always cleared for partial crease patterns.
--Added a tolerance within tmPoly::CalcPolyIsValid() so that
numerical-roundoff-sized movement of a node is no longer grounds to kill a
poly. Also fixed a bug in tmTree::CalcPolygonNetwork() that was occasionally
skipping over polys that, by rights, should have been killed.
--Added tmTreeCleaners to several tmTree setters so that cleanup gets invoked
when symmetry is turned on or off or symmetry parameters are changed.

20051209
--Factored creation code for Inspector panel contents into a new class,
tmwxInspectorPanel & rewrote panel constructors accordingly. Tweaked various
panels.
--Fixed a bug introduced with wxString::FromAscii, in which edge labels were not
being properly drawn.
--Loosened tmVertex::VerticesSameLoc() tolerance from .001 to .003.
--Wrote help/tips_1.htm, help/tips_2.htm. Assorted small edits throughout the
docs.
--Fixed a bug in tmFacet::CalcContents(), in which 90-degree ridges were
incorrectly resulting in facets being flagged as not well-formed.
--Added tmwxViewSettings.mShowFacetCorridorEdge field and appropriate control
in view settings and behavior in tmwxDesignCanvas.
--Rearranged the view settings panel.
--Assorted casts and (-1)->(wxID_ANY) from ABX, also other small fixes.
--Added file Source/tmVersion.h, which #defines some preprocessor constants that
are used for version information. Incorporated this into SetAppName(), and it
is now displayed in the About box.

20051207
--Zeroed uninitialized ptr member variables in wxApp (e.g., mPrintData).
--Removed tmwxDesignCanvas wxFocusEvent handlers because wxMac was actually at
fault for focus problems.
--Fixed an assert in wnlib. Rewrote parts of tmNLCO_wnlib to remove wnlib files
from #include hierarchy in tmModel.
--Eliminated tmwxMessageBox, no longer needed.
--Assorted small fixes from ABX for unicode compatibility.
--Renamed tmwxHtmlHelpFrame::SetPrinter() to SetHtmlHelpPrinter() to avoid name
collision.

20051206
--Finished help/tutorial_3.htm, small edits throughout help files.
--Restored a feature from TM4, that pinned edges are shown lighter in Design
view.
--Fixed a serious bug in condition serialization; the index wasn't getting
created on read-in, which affected not only file I/O but also Undo/Redo.
--Made a number of small changes from ABX for Windows and unicode compatibility.

20051205
--Reimplemented several dialogs in tmwxDoc: Split Edge, Scale Edge Lengths,
Set Paper Size, Set Edge Lengths. They now look better and validate properly.
--Assorted small cleanups; removed unused commands for tmwxID_NODES_WATERBOMB
and tmwxID_INFER_SYMMETRY.
--Fully implemented Carlos's new GetPOD/PutPOD routines (mistakenly hadn't done
that previously).
--Wrote more help material (part of tutorial #2).

20051130
--Rearranged the drawing order so that facets are on top of polygons.
--Added more help material (tutorial #1).
--Note that to build the help cache from the zip file, you need to modify
hhp2cached code to add the wxZipFSHandler to handle the zip file.
--Fixed a bug in which orphan vertices owned by leaf nodes weren't getting
killed if the leaf node becomes a branch node.
--Enabled Action->Build Crease Pattern only when we have at least 3 leaf nodes.
--Added new class tmwxDocManager, whose members seem to be the proper place
to catch document closure so that Win/Lin can close the app when the last
document closes.

20051126
--Wrote more help documentation.
--Replaced GetPOD/PutPOD with Carlos's new versions.
--Moved "about.htm" to Source/about/about.htm.
--Removed "help.zip" from source distribution; you should build the zip file
during build from the contents of Source/help. Also, you should build the
help cache using hhp2cache (wxWidgets utility, see /utils).

20051124
--Moved all application support files to the application data directory. (You
will need to modify some build locations.)
--Added many help files and figures to the help file.
--Added help file caching.
--Modified facet and crease inspector panels to show more useful information in
release builds.
--Added a check for multiple inactive paths within a single molecule to the
model and a corresponding tmTree::CPStatus entry, POLYS_MULTIPLE_IBPS. This 
fixes a couple potential sources of failed assertions.
--Added Edit->Select->Corridor Facets command and supporting routines.
--Added Carlos's fix for spaces in label names (but maybe we'll change format
instead for v5?)
--Added another text element to the tmwxOptimizerDialog to give another way to
show that something is happening during long calculations.
--Added new classes tmwxHtmlHelpController and tmwxHtmlHelpFrame to get access
to setting header/footer and print size for printing help documentation.

20051121
--Added "Absorb Edge" to model and GUI. Needed now that EDGE_TOO_SHORT is a
possible failure mode.
--Added member tmFacet::mCorridorEdge and tmTree::mIsCorridorConnected. Added
check for corridor connectedness.
Unfortunately this changes serialization format again, breaking v5 files.
--Changed the export function to use the proper file type and to append 
"_v4.tmd5" to the name to make it clear from the filename that it's v4 format.
--Removed all "static_cast<unsigned long>" by adding routines tmwxStr(..) for
string conversion throughout the GUI.
--Reorganized edit menu to user hierarchical submenus to reduce its size.
--Fixed some bugs related to item enabling in the edit menu.
--Fixed a bug in tmArray::union_with() and added tmArray::replace_with.

20051118
--Updated some of the help files. They're still under construction and are 
very incomplete.
--Fixed a bug in which spurious pseudohinge creases could be created if a
junction vertex was in the ridgeline above an inactive axial path.
--Fixed a bug in which if a regular hinge had pseudohinges on both sides, facet
ordering crashed. The fix replaces the single tmVertex::mPseudohingeMate with
mLeftPseudohingeMate and mRightPseudohingeMate, but unfortunately this changes
the format of serialization.
--Added ability in debug builds to quit the tmTree::CleanupAfterEdit() routine
before calculation of facet order, which lets me examine crease patterns and
also debug the facet order without having to rebuild the app in between. This
setting is toggled by the new Debug menu, which is only present when TMDEBUG
is defined.
--Found a weakness in the model that led to failed assertions when edges got
too short (which prevented proper assignment of tree nodes). Now there's a check
in the model and a warning is provided to the user.

20051114
--Added tmwxApp::OnPrint and tmwxApp::OnPrintPreview per Carlos.
--Added handling of command-line arguments.
--Fixed a bug in which TMLOG(..) messages were being lost in Development builds.
--Added a close handler to tmwxInspectorFrame that ignores clicks on the close
box but still allows the application to quit via the tmwxApp::OnExit() handler.
--Gave all floating windows a common style across all platforms.
--Fixed a bug in which certain axial vertices weren't getting deleted when the
crease pattern became invalidated.

20051113
--Added File->Export version 4... command to debug builds so that problematic
configurations can be saved in a way that persists across version 5 format
changes.
--Added close handler to twmxViewSettingsFrame.
--Added static tmPart::GetIndex() and tmPart::GetStr() methods, used in 
debugging.

20051108
--Added assorted casts to size_t formatted as %lu per Carlos (kept in CAF
#defines).
--Added close handler in tmwxFoldedFormFrame in case window manager stuck a
close button into the window frame.
--Fixed a bug in which vertex validity wasn't getting set when there were no
vertices at all; it (and related flags) are now cleared at the beginning of
tmTree::CleanupAfterEdit().
--Added "polygon filled" info to Tree panel in debugging builds.
--In tmwxFoldedFormFrame, more descriptive text is shown when folded form can't
be displayed.
--Gathered palette installation into a single routine, tmwxApp::SetPalettes().

20051102
--Fixed a bug in tree triangulation that would cause the program to hang or
crash with large structures.
--Added a new bool field to tmTree that clarifies one of the reasons crease
pattern building might fail. Unfortunately, this changes the version 5 serial
format so you'll have to delete any v5 files you've saved.
--Added dummy file tmPrec.cpp that's needed under MSW to precompile headers.
--Added tmStubInfo::operator!=() so STL works on MSW (even though it's not
needed).
--Added more guard macros in cfsqp and rfsqp-related files so they won't be
compiled if tmUSE_CFSQP &/or tmUSE_RFSQP are not defined.

20051008
--Fixed some bugs that affected setting the global menu bar in the Mac version.
--Added creation of a new untitled document on startup in non-Mac versions (Mac
users can just use File->New in the global menu bar).
--Tweaked the documentation; noted distribution conditions for wnlib (not GPL).
--Added code to handle wxDocParentFrame and/or wxDocManager events that make it
to the app.
--Created version 5 serialization routines (Putv5Self(), Getv5Self()). Version
5 format is now standard output format; input can be 3, 4, or 5.
--Implemented Undo/Redo in class tmwxCommand
--Changed class tmwxOptimizer so that reversion happens from a serialized copy
of the tree, rather than a copy of the state vector. This allows cancelled
optimizations to be fully reverted, even if they've destroyed the crease 
pattern.
--If the splash screen or help files are not present, a warning message is
given to the user at runtime, even in Release builds.
--Guard #ifdef's added to tmNLCO_xxxxx.cpp files so that they're not compiled
if the corresponding symbols aren't turned on in tmNLCO.h.

20051001
--Began implementation of version 5 file format I/O. Still needs work.
--Began implementation of help system; HTML Help window is up and running, but
many pages need writing.
--If an edge is selected in design view, its corresponding facets are
highlighted in the folded form.
--Added a second page to printout, consisting of the folded form.
--For the About... command, implemented tmwxAboutDialog that displays an
HTML window with About information. About window is now always shown on first
run, and user can turn on/off its display in Preferences.
--Dropped class tmwxMainFrame, which was superfluous. Assorted changes to
other classes. twmxInspectorFrame is now the wxDocParentFrame. Class 
tmwxPersistentFrame is now a template class based on the underlying wxFrame
class so that twmxPersistentFrame<Frame> inherits from class Frame.

20050928
--Reworked the optimizers (again) so that tmOptimizer classes are no longer
descended from tmNLCO classes; instead, they take a ptr to a tmNLCO object.
Similarly, tmwxOptimizerDialog no longer inherits from tmOptimizer but simply
takes a ptr to a tmOptimizer. This approach also lets us choose the desired
type of NLCO for each optimizer at run time rather than at compile-time but has
the additional advantage of eliminating a lot of messy template code and
flattening the inheritance hierarchy.
--Created targets for test code in the TreeMaker XCode project and a script to
build all targets from the command line.
--Fixed a compatibility issue when building TreeMaker with C library code; the
wxWidgets headers (which are not C compatible) are now not included when
compiling C files.
--Added preferences command to select the desired optimization algorithm.
--Changed printing so that printed images are now drawn at the full resolution
of the printer (e.g., 300 dpi for a laser printer). This makes the images more
accurate (for print-and-fold) and lines are drawn thinner in printout than on
screen.
--Created new splash screen artwork and icons based on actual TM-generated
crease patterns.

20050911
--Cleanup of previous version; eliminated unused routines, renamed some query
routines to keep style consistent.
--tmFacets now start their vertices and creases with an axial/gusset crease and
proceed clockwise. This makes finding left/bottom/right creases more efficient
since we no longer need to search through lists to find those 3 types of crease.
--Removed "build polys" cmds from GUI; one command now builds everything.
--Added position check to window memory so palettes can't get lost offscreen.
--Rewrote parts of the facet ordering graph algorithm to reduce the number of
cases and simplify the algorithm; also has the effect of reducing the number of
superfluous links in the facet ordering graph.
--Revised (simpler) facet ordering algorithm fully implemented. Smaller code,
runs faster, works on most test cases.
--Added tmTree::mIsFacetDataValid and associated routines to catch crease
patterns for which facet ordering won't work, typically due to sliver facets.
User still gets AGRH crease pattern, which ought to be enough to fold the base.
--Reworked the optimizers so that the tmOptimizer-derived classes are now
templated on the tnNLCO_xxxx classes; this makes it possible to choose which
optimization engine to use at run-time, rather than at compile-time, and to
do more extensive parallel benchmarking of the individual optimization engines.

20050907
--Added sources and sinks to tmFacet class, in preparation for construction of
facet ordering. Added assorted supporting routines to tmFacet, tmCrease, and
tmTree classes. Added view options to view settings.
--Eliminated VertexBend and CreaseBend classes, and added new Kinds to tmCrease
that includes bend information: UNFOLDED_HINGE, FOLDED_HINGE, and PSEUDOHINGE.
--Added assorted routines to implement construction of the facet ordering
graph within molecules.
--Split tmTree facet ordering code into its own file.
--Cleaned up preprocessor symbols; dropped double-underscores from TMWX,
TMDEBUG, and TMPROFILE. Put all description into README.txt.
--Renamed enum types tmFacet::Orientation-->tmFacet::Color and
tmCrease::Assignment-->tmCrease::Fold. Renamed associated variables and
routines.
--CREASE ASSIGNMENT WORKS!!!! Oh happy day, oh frabjous joy. Facet ordering,
facet coloration, and finally crease assignment algorithms are all working and
playing together nicely. Time to do a code snapshot.

20050830
  After an even longer hiatus...
--Migrated project from CodeWarrior to Apple XCode and gcc 4.0. Numerous small
code changes for compatibility, particularly in the area of partial template
specialization. Eliminated the last #ifdef EXPLICIT_TEMPLATES.
--Upgraded wxW to 2.6.1 stable release.
--Defined __TMWX__, __TMDEBUG__, __TMPROFILE__, and TMASSERT() macros; behavior
controlled by preprocessor definitions to support Debug, Development, Profile, 
and Release builds.
--Eliminated triangulation and TTL (Template Triangulation Library). It really
wasn't contributing anything to user understanding to draw sorta-rivers.
--Rewrote parts of subpolygon generation and completely rewrote crease pattern
generation. There are no more 2-valent vertices, which reduces the number of
vertices, creases, and facets, relative to all previous versions. Numerous
changes to tmPoly, tmPath, and tmNode classes. Crease pattern is now generated
during tmPoly::BuildPolyContents() (formerly BuildSubPolys()).
--Now tmPoly, not tmTree, inherits from tmFacetOwner. This way, each major
polygon owns the facets it encloses, which lets us build some polys in a tree
without having to have them all defined.
--Depth generation is now much simpler. Eliminated many unneeded functions. New
approach uses the "ridgeline" machinery introduced in crease pattern generation.
--Replaced many usages of boolean combinations of member flags with calls to
member functions.
--Fixed a bug in which inspector panels and view settings panels would vanish
after the first open document.
--After all this, the current version now generates crease patterns and folded
forms with maximally simplified crease patterns. To do: generate full MV
assigment.

20050502
  After a long hiatus...
--Added a log window in debugging builds.
--Added a check to make sure we're building with wxW 2.5.3 or higher.
--Fixed a bug in which screen image was redrawn incorrectly at the end of a
drag.
--Rewrote window position/size persistence code to use MOVE and SIZE events
properly and put behavior in a common frame class, tmwxPersistentFrame.
--Fixed a bug in which the folded form image was not getting redrawn after
resize.
--Fixed a bug in which redrawing after commands was happening before the tree
got fully cleaned up. (Need to pay attention to tmTreeCleaner scope.)
--Made ALM optimization perform screen updating only at the end of each
iteration of the outer loop of optimization, rather than at fixed periodic
intervals (as in other optimizers).
--Changed dots in rendering from zero-length lines (non-standard for wxWindows)
to circles. This is better supported by Mac Core Graphics rendering.
--Replaced "About" box with splash screen artwork. (TBD: redraw artwork.)

20040817
--Added "Select non-two-colorable vertices" command in debug builds.
--Changed "Range" to "Depth" in model to conform to the usual graph theoretic
terminology.
--Added wxHSCROLL, wxVSCROLL to tmwxDesignCanvas ctor, which insures Mac version
gets scroll bars.
--Fixed a bug in computation of tmPath::mMinDepth, tmPath::mMinDepthDist that
affected paths incident on the root node.

20040802
--Switched the optimizer over to ALM to give it some exercise.
--Added Perturb Nodes command to model and GUI.
--Added tmFacetOwner::CalcHasPlanarCreases(..), which allows a more graceful
failure in the (not uncommon) event that the crease pattern contains crossing
creases.
--Added new member variables to support the concept of "feasibility", as
distinct from "validity". "Feasible" means a pattern satisfies (a) the path
equations, (b) any conditions that have been created. The term "valid" will be
used only to indicate when a data structure has been fully built and/or in
connection with corruption issues. Changes to tmPath, tmCondition, tmTree.
--Infeasible conditions are now displayed in red (like infeasible paths) in
twmxDesignCanvas.
--Added reporting of feasibility in tmNLCOTester.cpp and tmModelTester.cpp
projects.
--Added two more files for testing edge and strain optimization in
tmModelTester project.
--Fixed a bug in poly construction in which inset paths were getting their
mOutsetPath instances pointing to the wrong outset path.
--Fixed a bug in segment reversal that arose when the root node was an interior
leaf.
--In stub finder, stubs are now sorted by length, longest first so it appears
at the top of the list (usually it's the first choice).
--Fixed a bug in the stub finder so that zero-length stubs are not suggested.
--Added Resources folder containing Mac icons and property list.
--Added class tmwxButtonSmall and tmwxButtonMini. Adjusted font sizes in
dialogs.
--Removed unused windowID argument from ctors from my window classes derived
from wxW window classes.

20040708
--Added class tmwxPrintout. Will use this to implement a friendlier printout.
--Added tmwxDesignCanvas::MaximizePaperSize() and implemented "Fit to Screen"
command.
--tmwxPrintout now sets the mPrinting flag of twmxDesignCanvas directly so it's
no longer necessary to check the type of the wxDC.
--tmwxDesignCanvas always fits its image into the DC when we're printing so
that the crease pattern exactly fills up the printed page.
--Scale and filename appear in the printout (also in Print Preview).
--There is a residual bug in crease construction; building creases with the
file edge_optimization/centipede_after_edge_opt.tmd5 will cause a failed
assertion. This will need to be addressed.

20040620
--Fixed a bug in tmwxConditionNodeFixedPanel that wasn't accepting edited
values.
--Turned off tmwxScopeTimer in all calculations (it was getting irritating).
--Added key combination to "Edit>Set Edge Lengths...".
--Condition lists now let you make multiple selections and delete them by
keystroke or Edit menu command.
--Tweaked what gets displayed in tmwxCreasePanel.
--Added class tmConditionOwner. Not really needed, but now every part class has
a corresponding owner class.
--Facets are now built at the same time as creases, are visible in design view,
and can be turned on/off in view settings.
--Facets are shown in the folded form view and are highlighted if selected.
--Added tmFacet::mOrientation and associated enum values and getters.
--Facet orientations are now computed in tmTree::CleanupAfterEdit().
--Moved KindExtra out of tmPart and into tmVertex and tmCrease, renaming to
VertexBend and CreaseBend, respectively. Changed the names of the associated
enums.
--More new fields needed for crease computation:
  tmTree::mIsTwoColorable
  tmFacet::mFromFacet
  tmVertex::mIsBorderVertex
--Made tmTree::BuildTriangles() & tmTree::KillTriangles() private.
--Added lots more view settings, and re-laid-out the view settings panel.

20040603
--Modified tmPath::GetOrMakeVertex(..) so that all path-owned vertices stay
ordered in distance from the front node of the path. This is needed to
correctly compute range.
--Fixed the computation of range for vertices owned by paths.
--Added type tmPart::Bend with 3 values.
--Changed bool tmVertex::misBendVertex to Bend tmVertex::mBend. Added a getter.
--Added tmCrease::mBend, so that creases can also have a bend assigned. Added a
getter.
--Rewrote bend computation and propagation. Bend vertices and creases are now
properly identified and are (temporarily) color-coded in the design view.
--Added private declarations in tmDpptrArray<T> to hide some mutating ancestor
methods that aren't yet supported properly.
--Added "Edit>Make Node Root" command.
--Lots of small tweaks and improvements to range/bend calculations. Began
implementing analysis of segment reversals.
--Folded form is now always aligned to the upper left corner of its window.
--Added handler for special case of unranged border vertex, which allows the
computation of the folded form for some incompletely optimized patterns.
--Modified the time-splitting between GUI and math in tmwxOptimizerDialog<T> to
insure that a full screen update happens during a GUI slice. Made the GUI/math
split a const definable quantity.
--Got rid of a bunch of GetParts<P> calls outside of tmCluster by replacing
them with the appropriate tmCluster methods. Eliminated all but one "#ifdef
EXPLICIT_TEMPLATES".
--Added some static lines to inspector panels.
--Added tmwxMessageBox(..) as a replacement for ::wxMessageBox(..) that
word-wraps its text. Behavior defaults to ::wxMessageBox(..) on Mac. Icons are
not yet supported on other platforms.
--Added display of individual part indices to inspector group panel for small
selections.
--Changed field "Bend mBend" to "KindExtra mKindExtra" to reflect the fact that
I'm using this field to denote bend (for hinge creases & vertices) and axial
reversal (for axial creases).
--Action>Build Creases immediately puts you into Creases View. Action>Kill
Creases puts you back in Design View.

20040531
--Major changes to the model:
  new members in tmTree: mIsPolygonValid, mIsVertexRangeValid
  new members in tmNode: mRange, mElevation
  new members in tmPath: mMinRange, mMinRangeDist, mFrontReduction, mOutsetPath
  new members in tmVertex: mRange, mElevation, mIsBendVertex
  new Kind enum within tmCrease: GUSSET
  Added assorted member functions within model for purpose of computing range
  and bend data.
--Because of all the model changes, when reading version 4 files, all polys,
vertices and creases are killed immediately and will have to be rebuilt.
--Add display of owners for all objects in their inspector panels and
supporting fns within tmwxStaticText.
--Any time any polygons are killed, all creases now get killed automatically.
--Added "Edit>Select Part...", which makes it possible to browse any part in
inspector if you know its index; can be used to select among overlapping parts,
and is helpful for debugging.
--Added tmwxFoldedFormFrame, which displays the folded form if the crease
pattern exists and has valid vertex range data.
--Added View menu to main frame so it's present even with no documents around.
--Moved View menu construction and event handling into tmwxApp so it can be
shared by tmwxApp, tmwxMainFrame, and tmwxDoc.
--Restructured tmwxInspectorFrame to eliminate many overloaded
SetSelection(..), replacing with the template function SetSelectionP<P>, using
new traits class PanelTraits<P>.
--Reorganized the directories within tmwxGUI, grouping all document-related
classes in their own folder.
--Added tmCluster::Contains<P>(P*) and moved specializations of
tmCluster::GetParts<P>() into header as inline functions. NOTE TO CARLOS: check
to see if this fixes the problem gcc had with GetParts<P>; that is, try
compiling with the definition of EXPLICIT_TEMPLATES commented out.
--Added some explanation alerts when "Build Polygons" and "Build Creases" is
unsuccessful.
--Altered tmNLCOTester to optionally use symmetry constraints in the circle
packing test problem, so that it has both equality and inequality constraints.
--Added tmwxOptimizerDialogBase::mReason and associated routines that support
providing reason for abnormal termination of an optimization to the user.
--Added many alert functions to tmwxDoc giving more explanation for abnormal
termination of an optimization.
--Added support for the "mode" flag in CFSQP; instead of using 100 for all
cases, it can now be set for different optimizers, and scale optimization now
uses 110, which matches the value used in TM4. Previously, mode=100 was giving
poor convergence even for fairly simple problems with equality constraints in
scale optimization. However, mode=110 gives poor convergence for edge
optimization, hence the need to allow different settings for different
optimizers.
--FINALLY figured out how to implement keystroke cancellation in the progress
dialog! (Override tmwxOptimizerDialogBase::AcceptsFocus() to return true.) Did
it. It works.
--Implemented class tmNLCO_rfsqp, which uses the latest optimization software
from AEM Design. Added it to tmNLCOTester.h/.cpp.
--Sample files that used to be in Source/Test/Test_docs are now in folder
Samples.
--tmModelTester.cpp has been expanded to test the model in console mode,
reading its own test files. Both test code and files are now in their own
folder, Source/Test/tmModelTester/. tmModelTester also reports the type of
optimizer, so it can be used to profile the various optimizers against each
other on real TreeMaker problems.
--Other test files (Test_docs) are now moved out of the Source tree and into
their own folder, renamed Samples.
--class tmNLCO_alm is thoroughly rewritten with many bugs removed. Lower and
upper bounds are now handled explicitly, rather than being treated as
additional constraints, which improves the efficiency considerably.
--implemented wxStopWatches within tmwxOptimizerDialog<T> that insure that time
is split evenly between doing calculation and doing screen updates. This speeds
up perceived calculation because the screen isn't unnecessarily updated.

20040525
--Fixed a bug in click processing that was invoking tmTree::CleanupAfterEdit()
after any mouse click, resulting in the complete reconstruction of triangles
after every click, and hence the impossibility of selecting a triangle (because
it would be immediately deleted and replaced).
--Fixed a bug in ConditionNodesCollinearPanel, crash on display of third node.
--Fixed bugs in all ConditionPath...Panels, in the display of the path index.
--Upgraded wxWidgets to CVS HEAD 20040522. Discovered that (on Mac, at least)
there's a problem with setting focus. CVS HEAD 20040315 still works, but
doesn't support variant window sizes.
--Added routine tmwxViewSettingsPanel::AddAllNoneBtn(..), enforces commonality
in view settings panel.
--Added class tmwxCheckBoxSmall, used in tmwxViewSettingsPanel, which makes use
of variant window sizes. Checks wxWidgets version before using
SetWindowVariant(). --Tweaked GUI values in tmwxViewSettingsPanel.
--Made tmVertexOwner::GetOrMakeVertex(..) virtual; added
tmNode::GetOrMakeVertex(..) and tmPath::GetOrMakeVertex(..) overrides, giving
the latter behavior that a newly-created vertex splits any crease that it lies
on top of. This will allow the construction of tmFacets from the network of
creases and vertices, which I'll be adding shortly.
--Fixed a bug in tmwxDoc in which EX_BAD_SPLIT_PARTS was not getting caught
sometimes when nodes and/or edges are deleted.
--Fixed a bug in tmTree::KillSomeNodesAndEdges() in which EX_BAD_SPLIT_PARTS
was getting erroneously thrown if the selection contained sub nodes.
--Added mRange and mElevation fields to tmNode and tmVertex along with getters,
view settings, and display of same. At the moment, they aren't used for
anything critical and are not put/get to streams. I'll be filling out the
implemention of these quantities over the coming weeks.

20040520
--Rewrote tmTree::GetConvexHullNodes(), renamed to CalcBorderNodesAndPaths(),
to fix a bug in which it was not properly constructing the convex hull.
--Rewrote portions of tmPolyOwner::BuildPolysFromPaths(), tmTree::BuildPolys(),
and tmPoly::BuildSubPolys() to properly handle the situation where a nonconvex
polygon is constructed.
--Altered palette updating to reduce flicker; panels are only swapped within
palettes if the type of displayed object changes.
--Added template specialized GetPanel<P>() to tmwxInspectorFrame in preparation
for eventually replacing many overloaded SetSelection() routines with a single
templated version.
--Added "Edit>Select Unpinned Parts" command.

20040511
--Put in lots of "#include <iostream>" and "using namespace std;", both those
identified by Carlos and others I found when I went back and built some test
projects.
--Restored two rows of three buttons each in view settings (reduces palette
size).
--Added Split Selected Edge command (though this should be rewritten to
validate the dialog before closing).
--Fixed tmModelTester, which hadn't been updated to reflect other changes in
the model.

20040509
--Realized Carlos was right to give his gcc-based workarounds their own
preprocessor symbol, so that we can turn on and off individual fixes. Restored
EXPLICIT_TEMPLATES. (BTW, this will have to be gcc-specific, because CW doesn't
support "export template" yet.)
--Hooked up more menu commands in tmwxDoc, added a few more query fns to the
model to reduce code within the huge twmxDoc::UpdateUIorCommand().
--Added tmPath::TestIsActive() and tmPath::TestIsValid() to improve consistency
in those tests througout the model (and reduce the number of
sometimes-inconsistent floating-point literal constants). More needs to be done
in tracking down literals and replacing them with common constants or
higher-level functions.
--Modified classes tmStubFinder and tmStubInfo to eliminate duplicate stub sets
and to allow one to identify stubs with more than 4 active paths before calling
tmTree::AddStub(..).
--Hooked up the new and improved tmStubFinder to menu items, added a 
::wxSingleChoiceIndex() dialog for picking among the candidates, added more
::information
on each choice: the lengths of the two pieces of the split edge and all nodes
with which active paths are formed. Much friendlier than the pop-up menu in TM4!
--Tweaked colors in tmwxDesignCanvas and placement/size of scale.
--Delaunay triangles (tmTriangles) are now always built as part of cleanup and 
their rivers are visible in Tree view.
--If rivers are visible, we also draw the border paths in the same color
(whether or not border paths are selected to be shown).
--Started adding tmFacet to model (in preparation for full M/V assignment).
This doesn't (yet) change the file structure.
--Eliminated mConditionID and CONDITION_ID macro in favor of new tag system for
dynamic type, which is implemented in tmPart. There are LOTS of changes
throughout the model and GUI, notably a complete elimination of switch()
statements to resolve condition type. The new system is also more simply
extendible for adding new types.
--More extensive use of std::string in I/O, which offers some protection
against buffer overflow if an improperly formatted stream is encountered.
--Eliminated tmPart::PutPOD() and GetPOD() functions for shorts and longs;
integral types are either int or size_t.
--Added more checks for corrupted streams in stream I/O in model and added
exception handling on file open in tmwxDoc. If a file is corrupted, you will
now get one of several dialogs giving some indication of the possible cause.
--Unrecognized conditions are ignored as before, but now you get a dialog
letting you know how many were ignored if that happened.
--Collected common behaviors of tmwxInspectorFrame and tmwxViewSettingsFrame
into a common ancestor class, tmwxPaletteFrame.
--Added command-key combinations for view settings in menus
--Changed tmwxViewSettingsPanel to 3 columns. This reduced the height of the
palette and thus reduced the need for collapsibility so I removed all of
Carlos's additions to support collapsible subpanels.

20040423
--Reimplemented the calculation dialog through classes tmwxOptimizerDialogBase
and tmwxOptimizerDialog. Works well on Mac.
--Merged in Carlos's version of tmwxOptimizerDialogBase for GTK.
--Added compiler switch so that extra information in inspector panels doesn't
show up in release builds.
--Implemented tmwxDoc::SubmitCommand(..) within inspector panels when nodes,
edges, or the tree get edited from the inspector panel.
--Added tmConditionNodeCombo to model, tmwxConditionNodeComboPanel to GUI, and
menu commands to create them.
--Added class tmwxScopeTimer to report on the time required for optimizations.
--Time is reported only in debug builds.
--Fixed a bug in file writing that used '\r' instead of '\n' for line endings
sometimes.

20040421
--Fixed a bug in window activation in which the Mac menu bar was not being
properly set.
--Added queries for major and minor-ness of vertices and creases in model.
--Added view options for major and minor vertices.
--Redefined preset view settings.
--Added menu commands for preset view settings.
--Moved the main window offscreen (Mac only).
--Discovered, but haven't fixed, a problem in the calculation progress dialog:
it doesn't grab program control like a modal dialog so if you click on
something else while a calculation is going on, things get screwed up. Needs
work!

20040420
--Fixed bug in responding to Clear command that left a node panel visible.
--Properly handled clicking on a blank document (to create a new node).
--Fixed a crashing bug in drawing node circle for exactly one node.
--Removed class tmwxTreeViewFrame. Will reimplement in the future if needed.
--Rearranged a lot of menu commands.
--Turned on a few more menu commands.
--Added twmxGroupPanel so that group selections gets their own inspector panel.
--Implemented tmwxCommand and tmwxDoc::SubmitCommand(..). Commands are not yet
undoable, but this lays the ground work to make them so.
--Turned inspector panel part pointers back into ordinary pointers, because I
want to keep tmDpptr<> for use only inside the model.
--Added a timer to the twmxOptimizerDialog::UpdateScreen() method to insure
that the overhead imposed by screen updating is a fixed fraction of the
calculation time.

20040419
--Added Show/Hide capability to inspector and view settings palettes, added
View menu commands to do the same. Added Close handler for platforms that put a
close box in the window title bar.
--Changed part references in inspector panels to tmDpptr<P> to eliminate
dangling pointers after deletion.

20040418
--Fixed a significant model bug in the computation of the universal molecule
(tmPolyOwner::BuildPolysFromPaths(..)), that caused a repeatable crash in
TreeMaker 4.x. Added separate view settings for Node and Edge conditions.

20040416
--Implemented changes suggested by CAF to permit compilation under gcc.

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