mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2026-10-13 08:14:13 +02:00
ispyisail
aaeaff55cc
The 3D mouse only worked on Linux, through spacenavd. This adds a second backend that reads the device directly over USB through hidapi, with no 3Dconnexion driver or SDK: the route to Windows and macOS (discussion #599), and usable on Linux without spacenavd. SpaceMouseHid decodes the raw reports from the device's own report descriptor -- where each axis and button sits, its range, absolute or relative -- so no per-model table is needed, with the classic report 1/2/3 layout as a fallback when the descriptor cannot be read and the 0x1c button list newer devices send. Absolute axes are rescaled to +-500 exactly as spacenavd does, so both backends give QET the same values. HidBackend polls from the main thread (fast while moving, slow when still), emits one sample per poll, and looks for a device every 3 s so plugging one in or back in needs no restart. QET_SPACEMOUSE_BACKEND (auto, spnav, hid) picks the backend; auto keeps libspnav on Linux when it is found and uses hidapi otherwise. hidapi is found through pkg-config as hidapi-hidraw (Linux) or hidapi (MSYS2, Homebrew). A sample arriving in the same millisecond as the previous one now counts for no time instead of a full period, so a burst of queued samples no longer moves the view further than the time it covers. Tested without a device: tst_spacemousehid (descriptor parsing, broken and hostile descriptors, every report form, recordings from real devices once they are added to fixtures/spacemouse), and end to end on Linux through a virtual USB device created with /dev/uhid: the same moves give byte-identical screenshots through the hidapi and libspnav backends, an absolute axis is rescaled as spacenavd does, buttons trigger their bound action, and unplugging and replugging while QET runs (including with a dialog open that a device button opened) reconnects cleanly. Not tested on Windows, macOS or real hardware. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
/*
|
|
Copyright 2006-2026 The QElectroTech Team
|
|
This file is part of QElectroTech.
|
|
|
|
QElectroTech is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
QElectroTech is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef SPACEMOUSEBACKEND_H
|
|
#define SPACEMOUSEBACKEND_H
|
|
|
|
#include "spacemousemotion.h"
|
|
|
|
#include <QObject>
|
|
|
|
/**
|
|
@brief The SpaceMouseBackend class
|
|
Platform seam for discussion #599's 3D mouse support. A backend owns
|
|
one platform's connection to the actual 6-DOF device driver -- opening
|
|
it, pumping whatever event source that platform uses, closing it -- and
|
|
reports motion through the signals below. Everything platform-
|
|
independent (which view to apply motion to, the pan/zoom primitives to
|
|
call, the sample-to-motion mapping) lives in SpaceMouseListener and
|
|
SpaceMouseMotion instead, once, so it does not have to be duplicated
|
|
or re-verified per backend.
|
|
|
|
Two implementations, chosen at build time (cmake/find_spacemouse.cmake):
|
|
SpnavBackend (Linux, through spacenavd/libspnav) and HidBackend (any
|
|
platform, directly over USB through hidapi, with no 3Dconnexion driver
|
|
or SDK). Both report the same values for the same movement.
|
|
*/
|
|
class SpaceMouseBackend : public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
explicit SpaceMouseBackend(QObject *parent = nullptr) : QObject(parent) {}
|
|
~SpaceMouseBackend() override = default;
|
|
|
|
/// True once this backend actually has a live connection to a
|
|
/// driver/daemon. False is the ordinary case -- no daemon
|
|
/// running, no device attached -- not an error; see
|
|
/// SpaceMouseListener's class comment for why that distinction
|
|
/// matters.
|
|
virtual bool isAvailable() const = 0;
|
|
|
|
signals:
|
|
/// One raw device sample, all six axes. Units and range are
|
|
/// whatever the backend's own driver reports --
|
|
/// SpaceMouseMotion::map() and the user's settings are what
|
|
/// turn them into pixels and a zoom factor, not this signal.
|
|
void motion(const SpaceMouseSample &sample);
|
|
|
|
/// One device button was pressed. \a button is whatever index
|
|
/// the backend's own driver numbers it as -- there is no
|
|
/// portable numbering across device models, which is exactly
|
|
/// why the binding from a button to a QET action
|
|
/// (SpaceMouseButtonMap) is user-configurable rather than
|
|
/// hardcoded. Emitted on press only; release is not reported,
|
|
/// since nothing here has a use for it.
|
|
void buttonPressed(int button);
|
|
};
|
|
|
|
#endif // SPACEMOUSEBACKEND_H
|