This is a stop gap fix. It should be possible to use the wxFrame title
string for this but some of the frame windows have appropriated the title
string for configuration file naming purposes which is less than ideal.
Fixes lp:1825977
https://bugs.launchpad.net/kicad/+bug/1825977
Provide a toolkit-agnostic interface for "busy indicators", which
allows the 3D viewer to show a busy cursor, without the canvases
having to to know how a wxCursore works.
The motivation here is to decouple the 3D renderers from the WX
GUI system, as they can then be used when when there is not an
active window (e.g. for offscreen rendering).
Otherwise, attempting to use a wxBusyCursor without a GUI
available is an instant segfault.
Prevent user from pasting text with carriage return and/or line feed
characters in field value edit control in the schematic symbol and symbol
library properties dialogs.
Make all objects derived from GRID_CELL_TEXT_BUTTON use validators
correctly.
Add validators to FIELDS_GRID_TABLE object for field values other than
the mandatory fields.
Create a validator to check that a string is a valid LIB_ID.
Fixes lp:1828214
https://bugs.launchpad.net/kicad/+bug/1828214
This is mainly the solder paste layer that shows this issue.
This is due to the fact SHAPE_POLY_SET::Inflate does not work fine with polygons with linked holes.
SHAPE_POLY_SET::InflateWithLinkedHoles it added to fix this issue.
Fixes: lp:1828287
https://bugs.launchpad.net/kicad/+bug/1828287
It was confusing that the primary frames registered their tools
differently than the other frames. In addition, since the other
frames also added their own tools, foo_actions::RegisterAllTools()
didn't really register all tool but rather those used by the
principal frame (PCB_EDIT_FRAME, SCH_EDIT_FRAME, etc.)
Force the symbol library links whenever the symbol library table has been
modified. This will use the cache as a fallback when a library has been
removed that contains links in the schematic rather than display.
Fix the SCH_COMPONENT symbol resolver when falling back to the cache. The
resolver was using the LIB_ID ':' notation which was failing. Replacing
':' with '_' fixed this issue. This was also an issue when generating the
symbol message panel information.
Convert wxLogDebug to wxLogTrace in symbol resolver code path. Add new
trace type KICAD_SYM_RESOLVE.
Fixes lp:1821606
https://bugs.launchpad.net/kicad/+bug/1821606
This allows a const BITMAP_BASE to expose const image
data. This is currently done with const_casts, which is
"OK", only as long as the source image is not declared
const, in which case it's undefined behaviour.
Also immediately dereference the pointer to a reference
if it's not checked to make the non-null requirements
explicit at the point of access.
When utilizing the standard iterator container, we may have polygons
with an empty outline (these are generated by gerbview to pcbnew). This
should register as the end of the iterator to prevent dereferencing
The wire image undo/redo option required special handling and was only
used in a single location. Replacing with single change handling
reduces the code complexity
Give the user the option of cancelling a file open if there are
segment zones; otherwise they're converted to polygon fills.
Fixes: lp:1823087
* https://bugs.launchpad.net/kicad/+bug/1823087
Move repeated GAL config reading routines into GAL_DISPLAY_OPTIONS.
THe app-level config is in here already, do the same for the
common config.
This means that the configs are loaded consistently, which fixes
the symbol-chooser preview window, which previously didn't use the
same config routine as other GAL canvases.
Future work could move these functions to free functions that
act on the public interface of GAL_DISPLAY_OPTIONS to avoid
GAL_DISPLAY_OPTIONS having to know about wxConfig and wxWindow.
Fixes: lp:1824524
* https://bugs.launchpad.net/kicad/+bug/1824524
This allows setting the config dir at build time, providing packagers a
method of controlling where the configuration files are placed.
Fixes: lp:1780601
* https://bugs.launchpad.net/kicad/+bug/1780601
This allows us to make the various netlist and pcb update routines
more atomic and less reliant on carefully sequenced asynchronous
messages.
This is also a prelude to adding support for footprint testing
without a netlist.
For legacy boards, the setting is picked up from the board outline
thickness. If the board outline has mixed thicknesses, then the
max is used and a warning is displayed.
Fixes: lp:1797787
* https://bugs.launchpad.net/kicad/+bug/1797787
Statically constructing wxCursors as used for the probe
and tune cursors crashes the qa_eagle_plugin test
instantly.
Fix this by introducing a new class CURSOR_STORE,
which allows to abstract the platform wierdness of wxCursors
and allow the simulator to laziliy init its own cursors
at runtime.
This code isn't properly tested, as these cursors are never
actually used. However, it does allow the eeschema unit test
to run.
Fixes: lp:1781191
* https://bugs.launchpad.net/kicad/+bug/1781191
They don't really help any, and they confuse some users into
thinking they need angle brackets around real values.
Fixes: lp:1821601
* https://bugs.launchpad.net/kicad/+bug/1821601
Save/restore default netclass.
Read layers back in with correct syntax ('.' between keyword and layer name).
Write layers to project file.
Read/write layer enablement bits.
Don't set solder paste margin min to 0 (most of them are negative).
Fixes: lp:1811990
* https://bugs.launchpad.net/kicad/+bug/1811990
Bus upgrades: core new connectivity code
Bus upgrades: eeschema integration and modifications
Bus upgrades: eeschema dialogs
Bus upgrades: netlist export
Bus upgrades: file format changes
First, add automatic detection of toolkit DPI scaling options. For now, this
is, in order,
* Check the GDK_SCALE option under GTK+ (users can set this to force the scaling)
* Check the value from WX's GetContentScalingFactor(). This will start to work
correctly from WX 3.1 and GTK+ 3.10.
Then, add a user-settable override in the main prefs panel, next to the icon
scaling. This is independent of the icon scaling options.
DPI handling is performed in a standalone class, so they can be shared between
the prefs UI and the OpenGL backend easily. Also means Cairo could use the same
interface in future.
Also adjust the OpenGL grid drawing code to use the computed scale factor,
which avoids over-thick grids in scaled environments (the user can manually
thicken the grid if wanted).
Fixes: lp:1797308
* https://bugs.launchpad.net/kicad/+bug/1797308
Autosave was not working correctly, partly due to different
implementations in eeschema and pcbnew and partly due to a mistaken
refactor at some point during v5 development. This unifies the expected
autosave prefix to _autosave- for both pcbnew and eeschema. It also
unifies the expected suffix for the backup files to -bak.
Fixes: lp:1820433
* https://bugs.launchpad.net/kicad/+bug/1820433
Allows 0 to 4 chamfered corners, not only one.
A custom shape allow this kind of shape. However because it is a primitive,
it is easier to edit and it support thermal reliefs.
Disable the text update event for the orientation cutom value field before
updating it when the radio buttons are selected. This allows to use the
conventional EVT_TEXT handler, rather than KEYDOWN, which has two effects:
* Tabbing though the dialog no longer sets custom orientation
* Click-driven clipboard actions trigger the update correctly.
Introduce a helper function in validators.h to assist in updating
validated fields without triggering further events.
Fixes: lp:1819006
* https://bugs.launchpad.net/kicad/+bug/1819006
wxWidgets has several bugs that result in cell editors being closed
right after they're opened. There are two wxWidgets hacks to
partially address this: the SetInSetFocus() hack, and a slow-click
hack. We used to try and work-around these bugs ourselves for
single-click access, but this changelist moves those over to
wxWidget's slow-click hack.
Fixes: lp:1817965
* https://bugs.launchpad.net/kicad/+bug/1817965
The folder button handler works will for footprint libraries but we
needed a specific class for the schematic libraries as well.
Fixes: lp:1818346
* https://bugs.launchpad.net/kicad/+bug/1818346
Added checks to StrCmpNum() function in common/sting.cpp to prevent
iterating past the end of the sting. Also removed length of string
parameter since it did not seem to be used anywhere.
Fixes lp:1818157
https://bugs.launchpad.net/kicad/+bug/1818157
Introduce a shortcut method to set tab ordering and use it in
the dialogs that override the tab traversal orders:
* Eeschema sheet properties
* Pcbnew Move exact
* Pcbnew Move relative
Also set some initial focus fields in the same dialogs.
Tidy a few includes.
Fixes: lp:1816009
* https://bugs.launchpad.net/kicad/+bug/1816009
GTK3 provides for additional input devices via xinput2. These include
touchscreens and continuous scroll devices. But wxWidgets does not have
specialized handlers for these events, so they double up for some
devices. Until wxWidgets allows us to handle these events, we specify
that the input handler should be the old-style GDK_CORE.
gal: pixel alignment for Cairo.
gal: pixel alignment for OpenGL
Cleanup of pixel alignment patches
gal/opengl: more pixel alignment patches:
- works on Retina displays now
- pixel alignment for circles
- correct 1-pixel strokes
- fixed unfinished 1-pixel line ends
GAL: Restore antialiasing options in Cairo
GAL: Fix arc drawing
Removes DrawArcSegment, which drew arcs whose edge was optionally
stroked (a feature that we did not use). Fixes Cairo arc drawing issue
where arcs were not visible in pcbnew.
gal: further cleanup
gal: removed unused shader parameter
The extra wx/gal debug statements are called on initialization but are
not used. Removing the printf prevents statements outputting that may
confuse end users
When re-drawing or re-caching all items, we need to search the full
rtree, including for those items that live outside of the limits of
BBOX2I. This forces the maximum BBOX2I to the full RTree limits
When adding colors to length tuner, we depend on the window background
color, which can be set by the user, resulting in an unreadable text.
This uses the HSL conversion to detect which shade it should use for the
coloring.
Also adds test cases for round-trip HSL and HSV conversion
Fixes: lp:1814530
* https://bugs.launchpad.net/kicad/+bug/1814530
* Make LIB_TABLE_BASE::GetCount() return unsigned. This is more
consistent with the behaviour of STL containers (especially the
boost::ptr_vector this is really accessing). Sadly
wxGridTableBase() forces an int, so a cast is still required
at the WX interface.
* Make LIB_TABLE_BASE::At() return a reference. First, this is more
consistent with normal STL indexing operator[]'s, and secondly, it
allows an idiomatic const index method (so you can access const
LIB_TABLE_ROWs from a const LIB_TABLE_BASE).
The motivation is to allow use of this class and LIB_TABLE_ROW
in a test program, where the LIB_TABLE_BASE is const.
Some basic tests on LIB_TABLE and LIB_TABLE_ROW that demonstrate
the behaviour of fallbacks and various access methods.
Also add a few LIB_TABLE_BASE comments and changed some NULLs to
nullptr.
Libpolygon can provide its own includes via target_include_dirs PUBLIC.
This means any linking targets do not need to specifiy them manually.
As common requires polygon, the polygon dep is also now no longer
required downstream of libcommon, as it's transisitvely implied
by libcommon's target_link_libraries.
This resolves a circular dependency previously detected and also
simplifies CMakeLists.
The bitmap definitions (BITMAP_DEF and so on) do not
have any dependencies on other libs, including WX. This
means the bitmaps library can be isolated from the other
dependencies.
Common now depends on bitmaps, and libraries that depend
on common can pick it up from the common target_link_libraries,
as it is PUBLIC. This means a lot of targets no longer
need manual bitmap linkage.
This avoids a circular dependency that was previously reported
by static analysis.
Avoiding pulling in WX and other headers into the include
tree of each bitmap .cpp is a huge speed up (around 10x) in
compilation, and the generated static library is also 10x
smaller (20MB vs 200MB)
Add common as a link library to pnsrouter,connectivity.
THese library do still use common code (including bitmaps,
via base_screen.h) and this allows them to pick up the libcommon
includes correctly.
Circles and Squares are handled correctly. Octagons are converted to
circles. Pad 1 is identified by the "1" string in the Eagle name.
Fixes: lp:1784126
* https://bugs.launchpad.net/kicad/+bug/1784126
Uses existing grouping in SVG output. Sets schematic components as a
grouped element in SVG as well as pcbnew elements per layer.
Fixes: lp:1011754
* https://bugs.launchpad.net/kicad/+bug/1011754
This breaks the following functions out to a general-purposed refdes utils
header:
* MODULE::GetReferencePrefix()
* kicad_string.h RefDesStringCompare()
This acheives:
* Slimming of MODULE interface
* Placement of refdes code in common rather than pcbnew
** Testing of this code in qa_common
* Tighter and smaller includes for code that only needed refdes functions
Note: there are failing tests commited (as expected failures). These
are the cause of lp:1813669 and will be fixed as a follow-up commit.
This is not logic specific to MODULE. Breaking it out to
kicad_string.h acheives:
* Slimming of the MODULE interface
* Enables reuse of the function
* Enables testing of the function
Also add a test under qa_common for this function.
The CONFIG_SAVE_RESTORE_WINDOW class does not need to be tied
to the array dialog, put it in common/widgets.
Also do a refactor and tidy-up of the the class, use a union for (slightly)
better type-safety and syntax (a variant would be better but that's C++17).
Also enable integral field save/restore from text boxes.
The geometry and numbering logic is separate to the dialog, and
can be separated for clearer logic and better testability.
Moreover, refactor it to avoid any dependency on pcbnew
classes, so it can be move to common for potential re-use in
eeschema and friends in future.
Also convert all wxPoint logic in these classes to VECTOR2I and
fix some function visibilities.
Add some unit tests of the ARRAY_OPTIONS geometry and numbering.
ClipperLib::Path is std::vector<IntPoint>. Iterating this with
"for( auto point : path)" could result in 'n' IntPoint copy-constructions.
It does seem GCC 8, at least, manages to optimise these constructions
out.
Replace with the "standard" for( const auto& point : path) idiom.
When prompting for a new footprint library, we need to treat the input
as a file for creation rather than a directory for selection.
Otherwise, users cannot specify the name of their new footprint library
independently of the existing directory names.
Fixes: lp:1812135
* https://bugs.launchpad.net/kicad/+bug/1812135
The intention here is to make it possible to wrap up many of the
KiCad utility tools into a single executable. This reduces link times
as well as the duplication of CMake files needed to build very
similar tools.
This particular tool should be suitable for any code in common,
code in pcbnew and other end-executables probalby will need an
analagous version linked to the relevant kiface.
The first tool is the coroutine_example.cpp test case, which
can be useful when learning, debugging or porting the coroutine
infrastructure.
CHANGED: By default dialog closes on Esc key immediately and if dialog
has a grid control there is no way to close a cell editor with canceling
changes. New behavior is next: if dialog has a grid and the grid has an
active cell editor Esc key closes cell editor, otherwise Esc key closes
the dialog.
When removing steiner points, there is the possibility that the test
point is also removed. In this case, it is no longer a member of the
linked list and will break the output.
The test for re-fracturing a broken polygon can also result in multiple
polygons, rather than only 0 or 1. Skipping the extra polygons will
result in a limited tesselation.
Fixes: lp:1812393
* https://bugs.launchpad.net/kicad/+bug/1812393
This issue created memory leak and not working wxComboboxes (for instance after modifying the language selection).
Now, these wxComboboxes are created only once, never recreated.
Also: minor cosmetic enhancement in footprint editor main toolbar
(the save footprint icon is modified if the footprint is saved to the board or to the library)
The config was saving a canvas type EDA_DRAW_FRAME member not always accurately initialized.
And the last canvas opened frame setup was saved, not necessary a frame having a canvas type that can be set by user.
This is a broken feature especially because the footprint viewer has a fixed canvas setting.
The canvas type might change without the frame being notified. If this
happens, the user is presented with repeated notifications of OpenGL
issues. Howver, switching canvas is not an error and should be
presented to the user as an info message to clarify that the system is
still working but it has changed how it renders the screen.
Fixes: lp:1795240
* https://bugs.launchpad.net/kicad/+bug/1795240
Use the AddFileExtListToFilter() to also generate the
wildcard for "all files". This is because:
* Users can use AddFileExtListToFilter for the all files WC
with the same interface as for any other extensions.
* Users do not need to worry about wxGetTranslation, as the
_() is applied in the same way as the other *Wildcard() helpers,
and it is a function just like the others, so it is consistent
* There is a testable interface to document the expected result.
The test is added.
Varargs make it very hard to pass strings in flexibly
when they (and the number of them) are not known
at compile time.
For example, this allows up to now amalgamate the "single
ext" and "multiple ext" unit tests.
The application warps the cursor when initiating some actions (dragging,
selecting modules or Find and Move). This warping should not also
trigger the autopan action.
Fixes: lp:1810787
* https://bugs.launchpad.net/kicad/+bug/1810787
The standard DIM() macro was not typesafe as it happily deferred errors
to runtime that can be caught at compile time. Replacing it with a
generic C++11 constexpr allows for typecasting, comparison and compile
time error checking.
The intention here is to make it possible to wrap up many of the
KiCad utility tools into a single executable. This reduces link times
as well as the duplication of CMake files needed to build very
similar tools.
This particular tool should be suitable for any code in common,
code in pcbnew and other end-executables probalby will need an
analagous version linked to the relevant kiface.
The first tool is the coroutine_example.cpp test case, which
can be useful when learning, debugging or porting the coroutine
infrastructure.
Cairo supports antialiasing when rendering but can be slow when set to
sub-pixel mode. This bumps the minimum version of Cairo to 1.12
(available in 14.04 LTS as well as mingw) to support three antialias
settings (fast, good, best) that offer speed/appearance tradeoffs.
This can provide a higher-quality eeschema render as it works on a
per-element basis as opposed to the OpenGL per-screen antialias.
wxChoice centers the selection on GTK. So when switching from a
mid-list item to an item at the top, the list is always cut off for
choice lists located on the top toolbar. Using a combobox provides a
drop-down that allows easier access to all elements in the box.
Fixes: lp:1808569
* https://bugs.launchpad.net/kicad/+bug/1808569
It avoid including these extensions in a translatable string, thus avoid breaking filter
if the translation is incorrect (It happens sometimes).
See wildcards_and_files_ext.cpp for use.
This make the use of legacy canvas on GTK3 a default-off
advanced config. Legacy is substantially broken on GTK3
and is of basically no use at all to general users on this
platform.
If the program starts with legacy canvas in the config,
it is forced into a GAL mode, as otherwise it could happen
that the user is stuck and unable to get into pcbnew to change
the setting.
Fixes: lp:1803156
* https://bugs.launchpad.net/kicad/+bug/1803156
This can be used for "advanced" options which are for developers
to use for feature-flags and other configuration. Run time config
has some advantages over preprocessor defines:
* Can be changed without recompilation
* Sensitive to XDG_CONFIG_DIR, so flipping configs is easy
* Better compiler coverage (less conditionally compiled code means
less chance to break a different configuration). Also better
analysis coverage.
* Type safe config params
* Centralised documentation: it's in doxygen, in one place
No advanced config should be required by a general users. If a general
user does use one of these configs, it's probably because:
* There is a bug and one of these configs is a workaround
* A config in here is generally useful and should be moved into the
relevant application config and given UI.
For now, the config is read-only, and is read from the
"kicad_advanced" config file in the normal config dir.
Rather than depend on proper unlocking for each exit, we move the
connectivity lock mutex into an RAII-type configuration that
automatically unlocks on exit.
The fracture() call may result in zero polygons remaining, which will
cause failure in our tesselation routine, so we need to check whether
this is a valid POLYGON before re-tesselating.
Tesselation can fail for a number of reasons. When this happens, we set
the triangulationValid flag to false to prevent using the broken
triangulation. This will fall back to the slow OpenGL triangulation
when DrawPolygon is called.
Use TesselatePolygon() to draw polygons in Gerbview instead of GLU tesselation, much slower.
Add helper methods in GAL to know if the current GAL engine is Cairo, OpenGL or something else,
useful to optimize drawing code.
Append the appropriate file extension to the file name if the file name
does not have a file extension. This is a know issue with the GTK+ file
dialog.
Make the last 3D viewer screenshot last file used code more coherent.
Add the 3D viewer main frame trace string to the trace environment
variables doxygen group.
Doxygen comment and other minor code cleaning.
Fixes lp:1804980
https://bugs.launchpad.net/bugs/1804980
GTK3 smooth scrolling is enabled by wxWidgets but not to the exclusion
of normal scroll up/down events. wxWidgets maps these both to the same
scroll handler and will fire them both if they are not handled before
being queued. Testing timestamps allows us to mark and ignore the
dupes.
This is set to GTK3 only for now as it isn't listed as a problem for
other platforms. But it shouldn't cause issues if it is enabled
elsewhere in the future.
This adds a check for contiguous board outlines to the DRC. It also
uses the calculated outline to ensure that traces are not crossing the
outlines.
Fixes: lp:1648055
* https://bugs.launchpad.net/kicad/+bug/1648055
The reduces a little bit of WX dependency, and makes
the timing code a bit more type-safe.
Also adds a more testable interface for the accelerated
zoom controller.
This is done to avoid a big chunk of conditionally-compiled code
in the middle of the event function.
Also separates the zoom logic from the WX_VIEW_CONTROLS object
and isolates it in a separate class behind a clearer interface.
Add some simple tests for sane steps on GTK+3-sized scroll
steps.
This syncs the "All" checkbox with the state of the report options such
that selecting "All" automatically selects the other boxes and
deselecting a box results in the "All" box also being unselected. This
allows a single click filtering of report messages.
Fixes: lp:1796992
* https://bugs.launchpad.net/kicad/+bug/1796992
This makes using Scrollbars more easy to use, especially for "small" page sizes like A or B.
Note also the working/drawing area size is bigger than the page size (3 times)
Factor out save current canvas view to image file code from symbol editor
code so it can be used anywhere.
Add ability to save to any image format supported by wxBitmapType. See
https://docs.wxwidgets.org/3.0/gdicmn_8h.html#a90a1eb6d85b5044a99b706fd979f27f5.
Currently only PNG output is implemented.
Please note that there is a minor bug that appears to be due to the
scroll bars which causes unfilled areas on the right and bottom edges
of the image. This always existed in the save symbol editor view
image but it was not as noticeable because by default the background
color is white. It is very noticeable in the footprint editor with
a black background.
The usual smattering of coding policy and comment fixes.
Fixes lp:1802127
https://bugs.launchpad.net/kicad/+bug/1802127
Due to the implicit floor of the cast from double to unsigned char,
there was a small rounding error in COLOUR4D's WX conversion function.
This fixes the failing tests.
Also make the cast to unsigned char explicit.
Add some unit tests on TITLE_BLOCK
This commit also requires some mocks so the libcommon stuff
can work:
* Needs a Kiface() function to be linkable
* Needs some stuff from common to be build specially
* Needs to define itself as one of the unit-having programs
to appease the units defines.
Display GALs had an incorrect world unit value set. Now the world unit
value says how many internal units are in an inch, in accord with the comments
in the GAL header. Bitmap drawing code relied on the information about DPI,
so scaling worked differently for display and print GALs.
CAIRO_PRINT_CTX provides a Cairo context created from wxPrintDC.
It allows one to prepare printouts using the Cairo library and
let wxWidgets handle the rest.
Fixes a crash when typing fast in the place footprint filter box.
Also adds a bunch more checking to GAL locking, including making
sure the same person unlocks as locked, and preventing piece-meal
calls (the RAII objects must be used).
When processing the selection filter, items were deselected before being
reselected after passing through the filter. This adjusts the logic to
only deselect those items that are filtered out.
Many operations on the selection involved getting an item by index or
dereference. The std::set needed to iterate from the beginning of the
set to find the item in its red-black tree. Using a deque that we keep
sorted, we get index access in O(1) and item search in O(lg N).
Replace all instances of wxLogDebug with wxLogTrace in the common and
kicad folders to prevent unwanted debugging output.
Add new trace flags for locale and screen object tracing.
The usual smattering of code policy fixes.
This prevents deadlocks when exceptions are thrown and the context
ends up not getting unlocked.
It also removes an earlier hack to try and minimize this which
didn't work anyway.
Getting the position of a non-position TOOL_EVENT will
now result in a wxCHECK, and a null-position (0,0) will
be returned. The new interface HasPosition() can be used
to determine if a call to a position function is safe to
make from the caller.
Fixes the underlying danger behind lp:1796045, which has
already been neutralised by a4966adb6, which avoids calling
the Position() functions when the TOOL_EVENT is not known
to be a position.
Fixes: lp:1796045
* https://bugs.launchpad.net/kicad/+bug/1796045
Block rotate and mirror now work like they do in Pcbnew (that is
they're treated as part of the block move/duplicate/whatever
rather than finishing it).
Fixes: lp:1780794
* https://bugs.launchpad.net/kicad/+bug/1780794
1) when duplicating don’t keep original hidden until end of drag
2) reset selectionArea when showing it so it doesn’t flash in its previous location
3) center a pasted block on the cursor
4) don’t draw the source selectionArea when pasting a block
5) implement selection-style highlighting for contents of blocks
6) add pasted items to view so they don’t disappear when the block is placed
Fixes: lp:1747197
* https://bugs.launchpad.net/kicad/+bug/1747197
Split antialiasing options out from display options. Move
antialiasing to common. Duplicate the rest of display options
for Eeschema.
Implement OnSelectGrid and hookup GAL canvas refresh to
SetPresetGrid.
Add Grid Settings... to View menu and move Show Grid from
preferences to View Menu to match Pcbnew.