* [Simulator] Create RadioKeyWidget class for UI buttons & refactor ButtonsWidget; Refactor SimulatedUIWidget (and subtypes) to use new RadioKeyWidgets/ButtonsWidget; Centralize help text for key mappings and get creative with some icons; Simplify some radio UI setups with rectangular buttons.
* [Simulator] Convert all simulator data I/O to signals/slots mechanism:
* SimulatorInterface/OpenTxSimulator:
- Now inherits from QObject to allow signal/slot interface;
- Allows data exchange on a per-item basis (eg. each I/O value is treated separately instead of sending whole arrays or structs of data);
- Checks for data changes and only emits signals when change is detected (GUI can now assume only new values are being sent);
- Manages its own 10ms timer (doesn't rely on GUI to do that);
- Sends "heartbeat" signals @ 1Hz for status monitoring;
* Simulator GUI:
- All data is exchanged between GUI elements as well as SimulatorInterface via signals/slots using standardized methods;
- Data is sent immediately, and only, when actually changed (eg. a control is moved) instead of in bulk at specific time intervals;
- Similarly, an asynchronous method is used for reading incoming data, w/out timers or loops;
- Improve VirtualJoystickWidget to be more encapsulated and configurable;
- Pause telemetry simulator if window is hidden;
* [Simulator] Move SimulatorInterface instance to separate thread, ensure safe asynchronous operations & proper timer interactions; Protect/remove some functions, & reorganize the order (cosmetics).
* [Simulator] Traces are now delivered to OpenTxSimulator and one or more QIODevice(s) can be added as recipient(s); Add SimulatorInterface::getCapability() for compile-time settings; Remove reversed POT1/SLIDER1 mixer exception (Taranis) requirement for SIMU; Fix plus/minus key delay on wheel event w/out encoder.
* [Simulator] Add current knob/slider/trim input value in tool-tips (KnobWidget and SliderWidget).
* [Simulator] Fix trims widget internal value not properly updating, and remove trim influence on virtual joystick X/Y value display (closes#4671).
* [SimulatorInterface] Add handling of transmitter input voltage, including a rough conversion of volts to ADC value for different boards, and default battery volts lookup function; Clear analogs array before starting.
* [Simulator] Add SimulatorInterface::init() method to separate pre-startup tasks; Report actual trim range, not just extended on/off; Change how radio widget states are restored; VirtualJoystickWidget: Connect trim changes directly from simulator, connect joystick events directly, report stick mode directly instead of setting values/constraints externally.
* [Simulator] Calculate default Tx V input based on configured range in radio settings (or warning V+2 for radios which don't support a range).
* [Simulator] Add functional aux. trims for Horus (closes#4699).
* [Companion] Remove problematic QMessageLogContext from AppDebugMessageHandler::messageOutput().
* [Simulator] Prevent trim change via slider if disabled for flight mode (closes#4600).
* [OpenTxSimulator] Fixes for Qt < 5.4.
* [OpenTxSimulator] Fix slot name.
* [Simulator] Create a reusable RadioTrimWidget; Move all trim-related enums to boards.h; Make sure aux trims are accounted for in SimulatorInterface; Trims now use toolbuttons with icons instead of pushbuttons with text.
* [Simulator] New buttons & icons for virtual joystick axis hold/fix toggles; Joystick ball is now slightly scaled to stick area.
* [Simulator] Virtual joystick now "follows" mouse clicks within the stick area (left-click on empty space will attract the control node).
* [simulation] Hardening: Fix some potential crashes & 26 memory leaks, improve LCD performance.
* [simpgmspace] Init trims; Make sure `REa` is really defined (to match board files).
* [simpgmspace][opentxsimulator] Verify current running state before start/stop; Move rotary enc. init.
* [simpgmspace][LcdWidget] Improve performance by moving LCD content change check to lcdRefresh() & limiting LcdWidget refresh time to 60 fps max.
* [simueeprom] Ensure thread could be started, set default running state to false.
* [simufatfs] Fix paths report trace.
* [eepromimportexport] Fix memory leaks resulting from import debugging scheme being used.
* [customdebug] Introduce new scheme for custom debug output in compliance with Qt recommendations (see docs for QLoggingCategory).
* [opentxeeprom] Fix extra conversion table cache elements being created and also not properly deleted (and hence leaking).
* [opentxinterface] Unregister EEpromInterfaces in unregisterOpenTxFirmwares();
* [storage] Unregister storage factories on exit (fixes leak); create virtual StorageFormat/StorageFactory destructors (prevents warnings).
* [helpers] GVarGroup now emits own signal, no need to pass ModelPanel pointer (removes dependency on modeledit.h)
* [DebugOutput] Clear simulator trace hook before exiting (prevent possible issues); Fix leak and possible bad QString allocations when reading from buffer; Fix leak with combo box event filter.
* [TelemetrySimulator] Fix leak by deleting LogPlaybackController object on exit; Only set up data fields once; convert timers to static.
* [build] Consolidate all Companion/Simulator shared items in `common` library to reduce build time/etc (node & edge still remain awkward).
* [simulatorwidget] Delete removed spacer object (previously-forgotten "26th" leak).
* [DebugOutput] Fix stray trailing characters issue with new text buffer allocation (from previous commit); Increase maximum buffer sizes to better accommodate slower systems.
* Cosmetics.
* [Companion][Simulator] Add custom qDebug message handler/formatter as an option. Keeps support for QT_MESSAGE_PATTERN env. var.
* [Simulator] Show system messages of level qInfo and above in debug console.
* [Simulator] Still capture screenshot to clipboard if path is not accessible (and screenshot results now print to simulator debug console).
* Fix for older CMake.
* [Companion] Do not start debug message handler if app is shutting down, and add null checks before using it; Increase backtrace report depth; Add OTx headers; Add Companion exit status debug; Clean up unused code.
* [Simulator] Add asynchronous FIFO buffer for handling debug output/display more efficiently. (#4488)
(cherry-picked from b12bd7d7be)
Max Paperno