* Frames moved: cvpcb, cvpcb footprints frame, gerbview, pagelayout editor
This also introduces new EDITOR_CONDITIONS that are used to set the
conditions of very common editor settings.
Also, some IDs were converted to tools in the pagelayout editor.
* Move it to a panel along with the canvas to have a better UI
* Allow the infobar to automatically close after a set time
CHANGED: The eeschema find notifications now use the infobar instead of
a popup window
This widget allows for non-intrusive display of text
above the editing canvas. Currently, this is used
for displaying the read only status of the files.
Now only reposition a window if it is completely on a
disconnected display or if only one corner is on screen
and it is within a region close to the screen border.
CHANGED: Window position on startup should be preserved more
Keeping a pointer to the actual file history inside a special
file history menu led to many cases of use after free crashes,
so instead rework the actual file history to add the menu
items.
Fixes https://gitlab.com/kicad/code/kicad/issues/3741
CHANGED: Settings are now stored in versioned sub-directories
ADDED: First-run dialog for migrating settings from a previous version
CHANGED: Settings are now stored as JSON files instead of wxConfig-style INI files
CHANGED: Color settings are now all stored in a separate settings file
CHANGED: The symbol editor and footprint editor now have their own settings files
CHANGED: Color settings are no longer exposed through BOARD object
CHANGED: Page layout editor now uses Eeschema's color scheme
Settings are now managed through a central SETTINGS_MANAGER held by PGM_BASE.
Existing settings will be migrated from the wxConfig format on first run of each application.
Per-application settings are now stored in one class for each application.
Create an IsContentModified() function in each frame
that provides if the content has been modified, and
use that instead of always copying the checks.
* Move the preview settings to view and make the menu item work
* Fix bug with preferences menu not displaying on GTK
* Implement quit command and make it similar to the other programs
Fixes: lp:1832139
* https://bugs.launchpad.net/kicad/+bug/1832139
Previously, for instance after modifying preferences or language,
they were rebuilt but the tools state was not set due to a missing call to SyncToolbars() after rebuilding.
Also changes the presentation of the string when the checkbox appears
so that the "Changes will be lost" warning isn't hidden by the turndown.
This last part may require conditional compilation as it's undocumented.
Lastly, regularizes the Unsaved Changes strings between the apps.