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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// This file is included from qnsview.mm, and only used to organize the code
#ifndef QT_NO_TABLETEVENT
#include <QtGui/qpointingdevice.h>
#include <QtCore/private/qflatmap_p.h>
Q_LOGGING_CATEGORY(lcQpaTablet, "qt.qpa.input.tablet")
using QCocoaTabletDeviceMap = QFlatMap<qint64, const QPointingDevice*>;
Q_GLOBAL_STATIC(QCocoaTabletDeviceMap, devicesInProximity)
@implementation QNSView (Tablet)
- (bool)handleTabletEvent:(NSEvent *)theEvent
{
static bool ignoreButtonMapping = qEnvironmentVariableIsSet("QT_MAC_TABLET_IGNORE_BUTTON_MAPPING");
if (!m_platformWindow)
return false;
NSEventType eventType = [theEvent type];
if (eventType != NSEventTypeTabletPoint && [theEvent subtype] != NSEventSubtypeTabletPoint)
return false; // Not a tablet event.
ulong timestamp = [theEvent timestamp] * 1000;
QPointF windowPoint;
QPointF screenPoint;
[self convertFromScreen:[self screenMousePoint:theEvent] toWindowPoint: &windowPoint andScreenPoint: &screenPoint];
// We use devicesInProximity because deviceID is typically 0,
// so QInputDevicePrivate::fromId() won't work.
const auto deviceId = theEvent.deviceID;
const auto *device = devicesInProximity->value(deviceId);
if (!device && deviceId == 0) {
// Application started up with stylus in proximity already, so we missed the proximity event?
// Create a generic tablet device for now.
device = tabletToolInstance(theEvent);
devicesInProximity->insert(deviceId, device);
}
if (Q_UNLIKELY(!device))
return false;
bool down = (eventType != NSEventTypeMouseMoved);
qreal pressure;
if (down) {
pressure = [theEvent pressure];
} else {
pressure = 0.0;
}
NSPoint tilt = [theEvent tilt];
int xTilt = qRound(tilt.x * 60.0);
int yTilt = qRound(tilt.y * -60.0);
qreal tangentialPressure = 0;
qreal rotation = 0;
int z = 0;
if (device->hasCapability(QInputDevice::Capability::ZPosition))
z = [theEvent absoluteZ];
if (device->hasCapability(QInputDevice::Capability::TangentialPressure))
tangentialPressure = ([theEvent tangentialPressure] * 2.0) - 1.0;
rotation = 360.0 - [theEvent rotation];
if (rotation > 180.0)
rotation -= 360.0;
Qt::KeyboardModifiers keyboardModifiers = QAppleKeyMapper::fromCocoaModifiers(theEvent.modifierFlags);
Qt::MouseButtons buttons = ignoreButtonMapping ? static_cast<Qt::MouseButtons>(static_cast<uint>([theEvent buttonMask])) : m_buttons;
QWindowSystemInterface::handleTabletEvent(m_platformWindow->window(), timestamp, device, windowPoint, screenPoint,
buttons, pressure, xTilt, yTilt, tangentialPressure, rotation, z, keyboardModifiers);
return true;
}
- (void)tabletPoint:(NSEvent *)theEvent
{
if ([self isTransparentForUserInput])
return [super tabletPoint:theEvent];
[self handleTabletEvent: theEvent];
}
/*!
\internal
Find the existing QPointingDevice instance representing a particular tablet or stylus;
or create and register a new instance if it was not found.
An instance can be uniquely identified by various properties taken from \a theEvent.
*/
static const QPointingDevice *tabletToolInstance(NSEvent *theEvent)
{
qint64 uid = theEvent.uniqueID;
uint bits = theEvent.vendorPointingDeviceType;
if (bits == 0 && uid != 0) {
// Fallback. It seems that the driver doesn't always include all the information.
// High-End Wacom devices store their "type" in the uper bits of the Unique ID.
// I'm not sure how to handle it for consumer devices, but I'll test that in a bit.
bits = uid >> 32;
}
// Defined in the "EN0056-NxtGenImpGuideX"
// on Wacom's Developer Website (www.wacomeng.com)
static const quint32 CursorTypeBitMask = 0x0F06;
quint32 toolId = bits & CursorTypeBitMask;
QInputDevice::Capabilities caps = QInputDevice::Capability::Position |
QInputDevice::Capability::Pressure | QInputDevice::Capability::Hover;
QInputDevice::DeviceType device;
int buttonCount = 3; // the tip, plus two barrel buttons
if (((bits & 0x0006) == 0x0002) && (toolId != 0x0902)) {
device = QInputDevice::DeviceType::Stylus;
} else {
switch (toolId) {
// TODO same cases as in qxcbconnection_xi2.cpp? then we could share this function
case 0x0802:
device = QInputDevice::DeviceType::Stylus;
break;
case 0x0902:
device = QInputDevice::DeviceType::Airbrush;
caps.setFlag(QInputDevice::Capability::TangentialPressure);
buttonCount = 2;
break;
case 0x0004:
device = QInputDevice::DeviceType::Mouse;
caps.setFlag(QInputDevice::Capability::Scroll);
break;
case 0x0006:
device = QInputDevice::DeviceType::Puck;
break;
case 0x0804:
device = QInputDevice::DeviceType::Stylus; // Art Pen
caps.setFlag(QInputDevice::Capability::Rotation);
buttonCount = 1;
break;
default:
device = QInputDevice::DeviceType::Unknown;
}
}
uint capabilityMask = theEvent.capabilityMask;
if (capabilityMask & 0x0200)
caps.setFlag(QInputDevice::Capability::ZPosition);
if (capabilityMask & 0x0800)
Q_ASSERT(caps.testFlag(QInputDevice::Capability::TangentialPressure));
QPointingDevice::PointerType pointerType = QPointingDevice::PointerType::Unknown;
switch (theEvent.pointingDeviceType) {
case NSPointingDeviceTypeUnknown:
default:
break;
case NSPointingDeviceTypePen:
pointerType = QPointingDevice::PointerType::Pen;
break;
case NSPointingDeviceTypeCursor:
pointerType = QPointingDevice::PointerType::Cursor;
break;
case NSPointingDeviceTypeEraser:
pointerType = QPointingDevice::PointerType::Eraser;
break;
}
const auto uniqueID = QPointingDeviceUniqueId::fromNumericId(uid);
auto windowSystemId = theEvent.deviceID;
const QPointingDevice *ret = QPointingDevicePrivate::queryTabletDevice(device, pointerType, uniqueID, caps, windowSystemId);
if (!ret) {
// TODO get the device name? (first argument)
// TODO associate each stylus with a "master" device representing the tablet itself
ret = new QPointingDevice(QString(), windowSystemId, device, pointerType,
caps, 1, buttonCount, QString(), uniqueID, QCocoaIntegration::instance());
QWindowSystemInterface::registerInputDevice(ret);
}
QPointingDevicePrivate *devPriv = QPointingDevicePrivate::get(const_cast<QPointingDevice *>(ret));
devPriv->toolId = toolId;
return ret;
}
- (void)tabletProximity:(NSEvent *)theEvent
{
if ([self isTransparentForUserInput])
return [super tabletProximity:theEvent];
const ulong timestamp = theEvent.timestamp * 1000;
const qint64 windowSystemId = theEvent.deviceID;
const QPointingDevice *device = tabletToolInstance(theEvent);
// TODO which window?
QWindowSystemInterface::handleTabletEnterLeaveProximityEvent(nullptr, timestamp, device, theEvent.isEnteringProximity);
// The windowSystemId starts at 0, but is "unique" while in proximity
if (theEvent.isEnteringProximity)
devicesInProximity->insert_or_assign(windowSystemId, device);
else
devicesInProximity->remove(windowSystemId);
}
@end
#endif
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