Previous the cross-probing options were mixed between sending and
receiving cross-probe events. This clarifies so that all of the pcbnew
cross-probe options deal with whether the cross-probe is seen in pcbnew
and all of the eeschema options deal with seeing the event in eeschema.
Also updates the wording in the options panels to be the same where
possible and adds tooltips
Fixes https://gitlab.com/kicad/code/kicad/issues/11454
When duplicating pins in the symbol editor the duplicated pins will have
unique pin numbers assigned if the duplication target had the pin number
specified
Also implements a uniform mechanism for avoiding auto-scroll after
a prime event or dialog which results in a mouse position at the
edge of the canvas.
Fixes https://gitlab.com/kicad/code/kicad/issues/11057
When the user asks to mirror a symbol is is frequently to get the
reference/value on the other side of the symbol for placement purposes.
Autoplacing the fields here keeps the text where they were initially
which can be frustating to work around.
This commit treats the mirror command as a user request to change where
the fields are
EE_INSPECTION_TOOL::UpdateMessagePanel was called by EVENTS::SelectedEvent
But This event after commit calls E_INSPECTION_TOOL::CrossProbe(),
and no longer UpdateMessagePanel.
So CrossProbe() now calls UpdateMessagePanel.
Fixes#11447https://gitlab.com/kicad/code/kicad/issues/11447
Fixes:
* Various special cases around junctions on pins and dragging.
* Some rotations of endpoints resulting in a 45 degree rotate.
* Some cases where it was possible to get a line with neither
endpoint selected, and also substractive unselecting only one of two
selected endpoints unselecting both.
* Use line midpoint for sorting. Start and endpoints aren't
consistent in the order they appear on the X or Y axis. So,
we need to use the midpoint for our position for consistent
sorting when dragging groups of parallel lines where some
have the start and end reversed.
Other:
* Rename TEMP_SELECTED TO SELECTED_BY_DRAG. This is the actual meaning
of the flag, and should reduce confusion as
to when it should be used.
* Move usage of TEMP_SELECTED as an algorithmic mark to CANDIDATE
instead.
* Fix mistaken clearing of START_POINT and ENDPOINT.
* Move endpoint setting and clearing out of narrowSelection, and into
selectPoint and selectMultiple.
* Don't show dangling end warnings on new lines
In symbols, a polyline descr is already a true polyline / polygon descr.
In schematic, a polyline descr was restricted to only 2 points (a line).
A true polyline / polygon descr is now allowed in schematic that support already
polygons.
For compatibility reason, a 2 points polygon (SCH_SHAPE) is converted to a SCH_LINE.
Previously, coordinates were clamped to +- 60 inches. It makes no sense to
clamp them at plotter level: max cooed depends on the editor (schematic/board...)
Rename MAX_PAGE_SIZE_MILS to MAX_PAGE_SIZE_EESCHEMA_MILS and use it only for Eeschema.
Fixes#11196https://gitlab.com/kicad/code/kicad/issues/11196
When double-clicking to open a symbol, it is no longer selected in the
tree. We need to use the `GetTargetLibId()` to pick the correct symbol
(first selected, then current) when using the duplicate command
Fixes https://gitlab.com/kicad/code/kicad/issues/11034
(cherry picked from commit 802d20c409)
The fix for https://gitlab.com/kicad/code/kicad/issues/10529 kicked the
subsequent IDs for unit selection off the maximum ID value for popup
menus. This increases the maximum popup number (integers are free)
(cherry picked from commit 79b6991d7b)
Center rotation will often misalign lines to the grid, which is bad
until fix off grid items on the schematic.
We can rotate a connection end into a new connection or to become
collinear with an existing line, so we need to check for this at the end
of rotation.
Fixes: https://gitlab.com/kicad/code/kicad/-/issues/10565
(cherry picked from commit 7d4cb91f39)
If a wire intersects more than 2 pins from the same symbol, we don't
trim connections. If the wire intersects exactly two pins from a single
symbol, we remove the wire between the pins.
We avoided doing this before because we didn't have a good metric for
trimming vs. not. But the per-symbol calculation feels like the least
surprising option.
Fixes https://gitlab.com/kicad/code/kicad/issues/10909
Fixes https://gitlab.com/kicad/code/kicad/issues/1857
(cherry picked from commit 75a4036e45)
Selecting end and midpoint will select whole line. Some changes for
orthogonal dragging made this worse than in 6.0.
Improves, but does not fully resolve:
https://gitlab.com/kicad/code/kicad/-/issues/10860
The use of XOR with integers here is needed as MSVC doesn't implement
the use of std::signbit for integers and casting up to double just to
get the signbit feels wrong
We need the item to be currently selected when repeating the last symbol
insert. This ensures we have a valid selection before starting the move
tool and possibly getting odd system behavior from mouse positions
Fixes https://gitlab.com/kicad/code/kicad/issues/10619
(cherry picked from commit 7642a9db79)
Also fixes some plot bugs with arcs.
Also moves polygonization of arcs (when required) in plotting code
from 5 degrees to calculated based on ARC_HIGH_DEF.
Fixes https://gitlab.com/kicad/code/kicad/issues/5017
SHAPE_LINE_CHAIN will, by default, remove duplicate points when
appending. We don't want to do this when constructing our polygons in
symbol editor, so we need to explicitly call the routine without
deduplication
Fixes https://gitlab.com/kicad/code/kicad/issues/10289
(cherry picked from commit 62f8603353)
When leaving the main point editor loop, we need to ensure that the edit
point is cleared as well. This is usually cleared by a ClearEvent call
but in case this is missed, we need to ensure that other tools are not
caught out
Fixes https://gitlab.com/kicad/code/kicad/issues/10288
(cherry picked from commit 9a2332dfcf)
Undo/Redo can change the symbol referenced by the symbol drawing tool.
This updates the current symbol before important steps to keep the
system synced
Fixes https://gitlab.com/kicad/code/kicad/issues/10125
(cherry picked from commit b8a7a66a0a)
ADDED arc, circle and rectangle shapes for schematic. Shapes support
line styles and fill colors.
CHANGED sheet background color in Edit Text & Graphics Properties to
fill color (and it now affects shapes).
Pushed STROKE_PARAMS down into common and moved all shapes to using it
for stroke descriptions.
Always use full sheet paths when storing sheet instances. Partial sheet
paths cannot be full resolved resulting in lost page numbers when renaming
sheet file name.
Fixes#9782
And undo the previous changes in SCH_TEXT::Rotate().
We continue hitting this with a wrench until it gets fixed or becomes
broken beyond any recognition.
This makes undo/redo look really strange as the other elements get
aligned but the wires do not (or rather their unconnected ends do not)
Fixes https://gitlab.com/kicad/code/kicad/issues/9275
Remove duplicate instance data saved in both root SCH_SCREEN and SCH_SHEET
objects that was causing them to be out of sync. All sheet instance data
is stored in the SCH_SHEET object itself and rebuilt on the fly so it is
always current.
Remove Get/SetPageNumber from SCH_SHEET_PATH object so it doesn't obfuscate
where the actual sheet page number information exists.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/9782
Grid-based accuracy doesn't need to be any larger than 1/2 the
diagonal as we'll snap to one side or the other. And symbols don't
need as much slop as other items since there's plenty of "meat" on
them.
Fixes https://gitlab.com/kicad/code/kicad/issues/9805
1) Make sure the y-coord is correctly inverted before calling collision
routines.
2) Give LIB_SHAPE poly lines the same extra slop as SCH_LINEs.
Fixes https://gitlab.com/kicad/code/kicad/issues/9791
Text has a fairly big bounding box to account for descenders, overbars,
etc., but it makes it feel too sloppy for hittesting. This change
allows selection disambiguation to look at the actual strokes of the
text when deciding what's "closest".
Fixes https://gitlab.com/kicad/code/kicad/issues/9506
Leaving the forced position on results in the auto-line linking to a pin
for far longer than we intend if there are other hits in the area of the
cursor
Fixes https://gitlab.com/kicad/code/kicad/issues/9321
Calling UpdateItem() may be performed by in a common loop, e.g. for(
SCH_ITEM* item : GetScreen()->Items() ) or similar. We cannot call
GetScreen()->Update( SCH_ITEM* ) in this routine as it will remove and
re-add the item to the RTree, invalidating iterators. If needed, the
items need to be cached to an external container before updating
Fixes https://gitlab.com/kicad/code/kicad/issues/9318
If we do a real drag, the timer will be cancelled. If we don't, then
the user is still holding the mouse button down and would probably like
to see the menu. Otherwise it appears the action is dropped.
Keeps the lines connected but doesn't solve the crossed-wire mixups.
This allows common usage (mirroring labels/rotating segments) and leaves
prevention of the crossed wires to the user.
We can't really prevent crossed wires when rotating e.g. a part with
wires connected to 4 sides and users will not expect that. But we
should not disable useful features like mirroring multiple parallel
items to avoid a known impossible situation
Also provides an alternative solution to 345f506f0c that allows us to
rotate groups without destroying connections on hover
Fixes https://gitlab.com/kicad/code/kicad/issues/8403
Fixes https://gitlab.com/kicad/code/kicad/issues/8523
doSelectionMenu returns false to indicate a cancelled menu. This needs
to be handled in selectPoint when directly accessing doSelectionMenu in
the same manner as SelectionMenu() events
Fixes https://gitlab.com/kicad/code/kicad/issues/9218
We have a fixed bottom-align for the text and labels in eeschema.
Therefore, mirroring vertically needs to account for the text's offset
from the bounding box center.
Fixes https://gitlab.com/kicad/code/kicad/issues/9208
The select-single-wire stuff is no longer needed, and the prefer-wire-ends
stuff needs to be distance-based.
Also improved wire hit-testing to include bubbles the size of the dangling
symbol at each end.
Fixes https://gitlab.com/kicad/code/kicad/issues/9187
1) Expand the accuracy to at least the grid spacing
2) Move pin-selects-symbol logic to Selectable()
3) Recode pick-closest algorithm to handle exactHits and inexactHits
separately
4) Remove pin target from bounding box in favour of expanding it to
at least as wide as the pin decoration (this prevents the accuracy
off the end of the pin from growing too large)
Also removes the message bar display of assigned netclass for
buses and bus-to-bus entries.
Also fixes a bug where assigning a netclass via the canvas only
looked at the first level of bus members (and not any nested
members).
Also fixes a bug where the bus name validator tried to validate
a vector bus first -- which doesn't work as a vector bus may be
nested in a group bus.
Also fixes a bug where we were failing to check for illegal
chars in bus definitions which otherwise passed the bus parsers.
See additional comments in the bug report.
Fixes https://gitlab.com/kicad/code/kicad/issues/9160
While it would make more sense to have them both use the old canvas
algorithm (of only assigning to the members), I'd be *very* hesitant
to change the Setup Dialog and underlying machinery this late in the
6.0 release.
Fixes https://gitlab.com/kicad/code/kicad/issues/9160
We have two cases where we might be requesting a disambiguation menu.
In one case, we already have the event loop waiting and we need to run
the selectionMenu through the action system. In the other case, the
tool isn't on the stack and won't activate. Here we need to run
directly and we are assured of not crashing because the tool isn't
active.
Fixes https://gitlab.com/kicad/code/kicad/issues/9154
Moving points should not be overrided by disambiguation menu, so we
track where the disambiguation event started and only trigger the menu
if the mouse hasn't moved a full unit in x/y
Fixes https://gitlab.com/kicad/code/kicad/issues/9132
Previously, we were checking if the selection tool was the top of the
stack but this ignored many other "secondary" tools that might be
running such as the point editor. These still allow the selection tool
to handle events such as clicks. This change allows the selection tool
to handle clicks when it is the primary tool on the stack rather than
the top
Fixes https://gitlab.com/kicad/code/kicad/issues/9110
This standardizes selection tools in SELECTION_TOOL class to be able to
handle a long-click as asking for a non-heuristic disambiguation menu.
Fixes https://gitlab.com/kicad/code/kicad/issues/8490
Don't show the clean up sheet pins context menu entry when the selected
sheet doesn't have any pins to clean up.
Remove sheet has no pins to clean up nag dialog now that the context menu
entry isn't shown unless there are pins to clean up.
Having the logic split between three different paths was
a bit much, this should hopefully be a bit easier to
maintain. All save logic now goes through SaveProject;
individual file writing is now a private function.
Also change Save As to Save Copy As in project manager
mode, as we don't want to change projects from inside
the editor in project manager mode.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/9015
They don't define a KiCad string class, so the header file name was
somewhat misleading. But the fact that they didn't match definitely
made coding more difficult.
The first time a DIALOG_SHIM was created, with a given size, this size
was not taken in account. This this is now forced.
(when recreated during a session, this is the last dialog size that is used)
When doing a schematic cleanup, for instance, we were breaking wires
and pushing undo records on to the stack. Needless to say, this was
pretty unexpected for the rest of the undo framework and caused all
kinds of mayhem (including crashes in some cases).
Fixes https://gitlab.com/kicad/code/kicad/issues/8704
It's tempting to say that we don't need to exclude filename chars
from symbols, but we might regret that decision down the road. Better
to just escape them.
Fixes https://gitlab.com/kicad/code/kicad/issues/8694
SCH_PIN wasn't handling the legacy empty string token (~), but
more importantly this will allow text variable resolution specific
to the schematic.
Fixes https://gitlab.com/kicad/code/kicad/issues/8625
We moved it earlier because AddItemToScreenAndUndoList() was clearing
it, but it needs to be set for AddItemToScreenAndUndoList() too.
Fixes https://gitlab.com/kicad/code/kicad/issues/8289
Units in library items start at 1. 0 is reserved for "all units".
Previous code was requesting an out of range index due to an assumption
that units start at 0.
Undo does some fairly major redraws (including setting the current
screen), all of which drop the selection and cancel interactive tools.
Make sure the selection is re-built *after* all those run.
Fixes https://gitlab.com/kicad/code/kicad/issues/8492
The only subtle difference is that Duplicate() does not modify the
clipboard contents so we need to keep a local variable in which to
store the result of a Copy()
Use justification instead of orientation relative to the anchor point when
describing text direction and alignment. This seems to be the preferred
method by most users so hopefully this will eliminate some confusion.
Fix a bug in the s-expression schematic parser that failed to take into
account how graphical text alignment is defined for graphic text objects
compared to label text objects.
Fixes https://gitlab.com/kicad/code/kicad/issues/6489
ADDED Paste Special... action in pcbnew
CHANGED Additional options for Paste Special... in eeschema, including
"Assign unique reference designators to pasted instance"
Duplicates are reannotated on paste in the same way in pcbnew and
eeschema such that when copying and pasting the same block in the
pcb and schematic, the reference designators will match.
Save sheet and symbol instance information to the clipboard on copy
Load sheet and symbol instance information from the clipboard on paste
and renumber page numbers after loading.
Correctly handle pasting in a multiple hierarchy by ensuring symbol and
sheet instances are updated for all instances of the destination sheet.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8207
wx/wx.h includes all wxWidgets .h files, and sometimes creates collision
names in #define between kicad and windows headers
Moreover, blindly including a lot of useless files is compil time consuming
REMOVED: Update schematic option from geographical annotation dialog due
to potential issues with incomplete and/or broken updates. Use "Update
Schematic from PCB" tool to update reference designation changes.
Forcing the footprint reference designator changes back to the schematic
without checking any other board changes in the schematic could leave the
schematic in a undefined state. The update schematic from board tool is
the correct method to sync any changes from the board.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8042
When activate the new symbol placement, the mouse cursor is outside the canvas.
Therefore a autopan was started and not so easy to stop.
Now the mouse cursor (and the graphic cursor) are moved to a better location inside the canvas.
Fixes#8156https://gitlab.com/kicad/code/kicad/issues/8156
We've been doing this for some time to wires that are attached to
the moving block (and therefore have the other end anchored). However
we also need to apply it when dragging a single end of a wire.
Fixes https://gitlab.com/kicad/code/kicad/issues/7807
The native cursor must be set on the GAL canvas wx object,
not its frame (otherwise on GTK the cursor is only set
when we get a request for it from the WM and not immediately).
Fixes https://gitlab.com/kicad/code/kicad/issues/6421
After commit 9535153f9e there were no more IDs inside the legacy ID
system. Therefore the entire system for dispatching and looking up
the legacy ideas and handling those events can now be removed and
the tool dispatcher simplified (it no longer needs to know about
the ACTIONS class).
The ACTION_MENU constructor now takes the tool as an argument,
so the call to SetTool() immediately following it can be removed
and the tool just passed into the constructor.
SHIFT, CTRL, ALT modifier keys were handled in 2 different codes, one for
the selection tool and another to modify the mouse cursor shape, with 2
different configs.
Now the modifiers are managed from only one function.
Pcbnew: group also SHIFT, CTRL, ALT modifier keys management to a specific function.
Fixes#8021https://gitlab.com/kicad/code/kicad/issues/8021
For some reason, the footprint UUID was being prefixed to the sheet path
which caused the symbol look up by sheet path to fail. An option was
added to not do this when the geographical back annotation to the schematic
is performed.
We kept having various issues of the pointer list going stale. This
will prevent all permutations of that.
Also while I was in there I fixed the double-move thing (see bug
number).
Fixes https://gitlab.com/kicad/code/kicad/issues/7910
1) Accept <enter> as OK if the multiline textbox isn't shown.
2) Focus and select all in first control if multiline textbox isn't shown.
3) Make title be title caps ("Edit Sheet name Field" looked dorky).
Fixes https://gitlab.com/kicad/code/kicad/issues/7940
1) Cloning the component fails to select all its pins.
2) Something about the layer compositing causes light selection shadows
to get even lighter. The default pretty much disappears.
Fixes https://gitlab.com/kicad/code/kicad/issues/7908
1) Don't factor in pin names when computing symbol body boundingbox.
2) Grid-snap only in the axis corresponding to the layout side.
3) We only need interline spacing *between* lines, not for each line.
4) Also cleans up the unit checking logic as the unit can't be more
than 0 unless it's a multi-unit symbol.
Fixes https://gitlab.com/kicad/code/kicad/issues/7907
Bitmaps are now identified by an enum class instead of by pointers.
Bitmap loading and caching is now handled by a class in common, and
we no longer compile most bitmaps into the binary, so there is no
longer a bitmaps static library.
Instead, bitmaps are archived to a .tar.gz file which is installed
in ${KICAD_DATA}/resources/images.tar.gz
The source PNGs are checked in to Git as the original CPP files were,
so that people can build without the required dependencies to convert
SVGs to PNGs.
Initial support is also added for dark theme icons, although this
is not yet exposed in the GUI.
Stubs are present for multi-resolution image resources, but this is
not fully-baked yet and could use some refinement.
CHANGED: add corner and repeat last command now default to 'I' instead
of '<insert>' on Mac.
1) wxWidgets doesn't currently display the correct graphic in the menu
for the insert key
2) Mac laptops don't have an instert key
Fixes https://gitlab.com/kicad/code/kicad/issues/5016
CHANGED: Ctrl-middle mouse button double click should perform
'Zoom to Objects' in Eeschema, but a change in modifier key handling
broke it. This MR restores the functionality.
Fixes https://gitlab.com/kicad/code/kicad/issues/7803
This fix required sorting all of the LIB_PART draw items to ensure
accurate comparison between the symbols stored in the schematic and the
original library symbols. This has a noticeable impact on symbol library
load performance. It may also cause significant changes the next time
the library is saved due to changes in the draw item sorting. Hashing
may be a better solution here but this addressed the immediate problem.
A skeleton method SCH_SCREEN::SwapSymbolLinks() was added because there
is most likely an issue with orphaned symbols in the schematic library
symbol cache during undo/redo operations. More testing is required to
verify this.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/7263
The move tool can stack on others, so when we re-enter the previous tool
this caused another immediate action. We flag re-entry in the tool
stack to check for this and avoid unexpected tool starts
I think the guessSelectionCandidates narrows down to a single item
in 99.9% of cases, so we can probably remove this entirely. But for
now it's safer just to fix it.
When a user clicks on the "Add Component", "Add Power" or "Add Footprint"
icon, they want to add the item. Requiring an extra click on the screen
before selecting the component/footprint is not needed.
Original architecture was to pass KICAD_T in to specify what kind of
object you wanted. That didn't work well with things like cursor
shape so it was moved to setting booleans based on the ACTION. When
I cleared out the old KICAD_T stuff I missed one case where it was
still used. That is now corrected as well.
Fixes https://gitlab.com/kicad/code/kicad/issues/7651
Also allows some symbol lib operations when we know the context even
if the library itself isn't selected. (For instance, select a symbol,
copy, paste.)
Adds ability to start new commit to eeschema, allowing all
AddItemsToUndoList to always append without foreknowledge. Keeps newly
split wires on the tool until placed
Fixes https://gitlab.com/kicad/code/kicad/issues/7512
The automatic wire tool was not working in the gridless mode because the
grid snapping on/off logic present in `EE_GRID_HELPER`, based on the
value of `m_enableGrid`, was not taking into account that another check,
but for the global KiCad setting, would be performed in the `Align()`
method, which is inherited from `GRID_HELPER`.
I've modified all tests of `m_enableGrid` value to also take the global
setting into account, and moved checks for it to `Align()` method, as
it's more consistent this way.
I've also removed an override of the `Align()` method in the
`PCB_GRID_HELPER` class, as it was made redundant by my changes.
Fixes https://gitlab.com/kicad/code/kicad/issues/7402
For unknown reasons, the move tool was not clearing the stack when
called from the edit tool. This moves the call to move tool to after
clearing the edit tool from the stack. The move tool handles cleanup,
so we skip the original reason for waiting on the move tool before
finalizing the edit tool routines
Fixes https://gitlab.com/kicad/code/kicad/issues/7481
Some differences are due to difference between libraries being files
in symbol editor and directories in footprint editor, but this unifies
most of the rest.
It also dispenses with the save-to-library vs save-to-document distinction
in the GUI because it makes for too much variability in the GUI, was
implemented differently between the two editors, and isn't needed as much
anymore now that we have the highly visible infobar.
There was also an issue that the save-to-board icon occupies the same
location and has the same size/shape/colours as the Board Setup icon in
PCBNew.
Fixes https://gitlab.com/kicad/code/kicad/issues/7215
Starting a new action (to add junctions) will break the move tool loop
and cancel placement. We need to wait until the tool completes before
choosing where to place the junctions
Fixes https://gitlab.com/kicad/code/kicad/issues/7421
Now looks at how hard it is to select the item (grids) and switches only
if the mouse is more than a grid square away and there is a new item
under the mouse.
Fixes https://gitlab.com/kicad/code/kicad/issues/4455
Forcing grid snap for the kick-start behavior loses snaps to pins that
may be desired. This also adds force-snapping in select mode to match
the user's auto-start preferences
Fixes https://gitlab.com/kicad/code/kicad/issues/7293
Prior to this change the "Save As.." command would take a different action
based on the state of the editor which could be confusing. There are now
separate commands for saving the currently selected library or symbol.
CHANGED: The implicit save as menu entry which would save the currently
selected library if no symbol was selected or the current symbol to a
different library. There are now separate save as commands for libraries
and symbols to make it obvious what is being saved.
Consider a pin synchronized iff the names and electrical types match in
addition to the position, orientation and demorgan variant.
Also, only modify one matching pin per unit. This prevents
moving/editing a full stack of pins on the same unit when synchonized.
Fixes https://gitlab.com/kicad/code/kicad/issues/2590
In particular, allow grid positions to override line snapping if
they're a better match (and do this independently on x and y axes).
We already allow a nearer anchor to override, but that should be
based on a cartesian distance rather than independent axes.
Fixes https://gitlab.com/kicad/code/kicad/issues/6626
CHANGED: If you set the auto-increment value to a negative number,
created a net label and hit the insert key, when the name got below zero,
the net labels tried to go negative but created bad labels instead.
Now the code caps decrementing at zero, warns users when it has
happened, and explains why.
Fixes https://gitlab.com/kicad/code/kicad/issues/6537
We had some spurious bugs where both ends would get dragged to a
single point (making them disappear). While I never caught it
in the debugger, I'm guessing that the flags weren't getting
cleared properly or were getting overwritten or something. Anyway,
it now uses std::pair instead.
Fixes https://gitlab.com/kicad/code/kicad/issues/6550
Fixes https://gitlab.com/kicad/code/kicad/issues/6431
- update hierarchy navigator after any modifications to the SCH_EDIT_FRAME
- do not generate ghost selection events after updating hierarchy tree
- use Human Readable path in SCH_EDIT_TOOL::EditPageNumber
Fixes https://gitlab.com/kicad/code/kicad/-/issues/5760
1) init reference pages before trying to draw the SCH_FIELDs when
turning intersheet references on
2) don't double redraw because we accidentally cleared the last
hover item on a non-mouse-moved event.
3) make sure the root sheet gets a name for the hypertext menu.