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The 3D mouse's pan and zoom speeds were fixed guesses, and each sample was applied as it came, so the speed on screen depended on how often the driver sends samples -- different for every platform and device. Motion now goes through SpaceMouseMotion::map(), which scales each sample by the time since the previous one, and applies the user's settings from a new "Mouvement" section of Configuration > Souris 3D: pan and zoom speed, a dead zone, inverting each axis, and zooming by push/pull (as before) or by twisting the cap. The defaults keep the previous behaviour. Zoom is now exponential in the deflection, so the factor stays positive however hard the cap is pulled (1 + z/1000 went negative past z = -1000) and an equal push and pull cancel out. Sub- pixel pan is carried over between samples instead of being rounded away. The backend now reports all six axes. tst_spacemousemotion covers the mapping without a device and is built whether or not QET_ENABLE_SPACEMOUSE is on. The new behaviour was also checked end to end with tools/spnav-shim (qelectrotech-docker): twist with a dead zone of 10 ignores push/pull and small drift, and a twist of 60 gives the same frame as a push of 50 with the defaults. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "spnavbackend.h"
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#include <QSocketNotifier>
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#include <spnav.h>
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/**
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@brief SpnavBackend::SpnavBackend
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Try to connect to spacenavd. Failure -- no daemon running, no device
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attached -- is left silent: it is the expected state for most users and
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must never surface as an error dialog or a log warning on every
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ordinary startup.
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@param parent
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*/
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SpnavBackend::SpnavBackend(QObject *parent) :
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SpaceMouseBackend(parent)
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{
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if (spnav_open() == -1) {
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return;
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}
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m_available = true;
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m_notifier = new QSocketNotifier(spnav_fd(), QSocketNotifier::Read, this);
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connect(m_notifier, &QSocketNotifier::activated,
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this, &SpnavBackend::readEvents);
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}
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/**
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@brief SpnavBackend::~SpnavBackend
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*/
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SpnavBackend::~SpnavBackend()
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{
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if (m_available) {
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spnav_close();
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}
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}
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/**
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@brief SpnavBackend::readEvents
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Called when the spacenavd socket has data available. Drains every event
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currently queued -- spnav_poll_event() returns 0 once the queue is
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empty -- rather than handling just one per activation, so events cannot
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silently back up if several arrive between two Qt event loop turns.
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*/
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void SpnavBackend::readEvents()
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{
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spnav_event event;
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while (spnav_poll_event(&event))
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{
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if (event.type == SPNAV_EVENT_MOTION) {
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SpaceMouseSample sample;
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sample.x = event.motion.x;
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sample.y = event.motion.y;
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sample.z = event.motion.z;
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sample.rx = event.motion.rx;
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sample.ry = event.motion.ry;
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sample.rz = event.motion.rz;
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emit motion(sample);
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}
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else if (event.type == SPNAV_EVENT_BUTTON && event.button.press) {
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//Release (press == 0) is not reported -- SpaceMouseListener
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//triggers a QET action on press, the same way a keyboard
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//shortcut triggers on key-down, and has no use for release.
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emit buttonPressed(event.button.bnum);
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}
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}
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}
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