* Make the ruler able to switch to mils after creation
* Cleanup an unused flag in Pcbnew dimensions
* Move unit changed notification into EDA_DRAW_FRAME so more
frames to use it.
* Allow switching units when GerbView ruler tool is active
CHANGED: The margin used in 'Zoom to Fit' is now 2% instead of 10%.
ADDED: Added 'Zoom to Objects' to Eeschema which does not include
the page and border in the bbox calculations.
CHANGED: Removed pre-existing code that tweaked the center to account
for the scrollbars. It actually made the view off center. Removing it
results in perfectly centered zooms.
Fixes https://gitlab.com/kicad/code/kicad/issues/5145
ADDED: Back annotation algorithm,
eeschema back annotation dialog
CHANGED: added some minor helper methods to SCH_REFERENCE_LIST and SCH_REFERENCE,
split SCH_REFERENCE_LIST::CheckAnnotation on 2 parts to reuse code
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.)
Put the cursor and pan control TOOL_ACTIONs in ACTION,
and refer to them in that way.
The handlers are currently identical in Pcbnew and Cvpcb,
and Gerbview (and all canvases) can benefit from them as well
if they are in libcommon. Also saves duplicated code.
Fixes: lp:1795855
* https://bugs.launchpad.net/kicad/+bug/1795855
Add Display Settings to Footprint Browser.
Make each of them OpenGL on OSX and Cairo on other platforms.
Allow auto-zoom to be turned off and save last zoom setting.
Make ordering of tools in htoolbar consistent.
Standardize grid and zoom drop-downs.
Fixes: lp:1791667
* https://bugs.launchpad.net/kicad/+bug/1791667
This is used to provide menu entries that allows cancellation of
interactive drawing and routing tools without needing the keyboard.
It is provided in the drawing tools and the router tool.
The cancel event doesn't have any new functionality (e.g. track rip-up
for the PNS router - lp:1448460), this just adds it to the menu, where
it behaves the same as an Escape keypress.
Some grid/zoom tools are left in PCBNEW_CONTROL because they currently
depend on Pcbnew-specific class members. Once refactoring is done to
make it possible to use all zoom and grid controls outside of pcbnew,
these last tools can be moved to common to match their ACTIONs.
New virtual class ACTIONS is added as a member to EDA_DRAW_FRAME so
that the TOOL_DISPATCHER can have access to the appropriate derived
version of TranslateLegacyId()