540 lines
24 KiB
Swift
540 lines
24 KiB
Swift
//
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// PencilHandler.swift
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// VoidLink
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//
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// Created by True砖家 on 2025/11/17.
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// Copyright © 2025 True砖家 on Bilibili. All rights reserved.
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//
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import UIKit
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@objc class PencilHandler: UIResponder, UIPencilInteractionDelegate {
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@objc static var shared: PencilHandler?
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/// 用来处理所有 touch 事件的宿主视图
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weak var streamView: UIView?
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// private var tickTimer: SafeTimer
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private var pencilInteraction: Any?
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private var streamAspectRatio: Float
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private var tickInterval: TimeInterval
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private var manualTick: Bool
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private var pencilTickEnabled: Bool
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private var pressureCurveEnabled: Bool = false
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private var manualHoverFlag: Bool = false
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@objc static var hoverSupported: Bool = false
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@objc static private(set) var autoHoverTermination: Bool = false
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private(set) var pencilProEnabled: Bool = false
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private var isFirstMove: Bool = false
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private var moveEventIndex: Int64 = 0
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private var initialMoveEventIndexLimit: Int64
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private var touchBeganForce: Float = 0
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@objc static private(set) var isDrawing: Bool = false
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@objc static private(set) var pencilPausesNativeTouch: Bool = false
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// static private let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
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static private var selectedProfile:OSCProfile?
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private var pressureLUT = PressureCurveLUT(curve: PressureCurve())
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@objc init(streamView: UIView, settings: TemporarySettings) {
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self.streamView = streamView
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streamAspectRatio = settings.width.floatValue/settings.height.floatValue
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tickInterval = TimeInterval(settings.pencilTickIntervalUs.floatValue/1000000)
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manualTick = settings.pencilTickMode.intValue == PencilTickMode.ManualTick.rawValue
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pencilTickEnabled = settings.pencilTickMode.intValue != PencilTickMode.PencilTickDisabled.rawValue
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// initialMoveEventIndexLimit = UIScreen.main.maximumFramesPerSecond > 60 ? 4 : 2
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initialMoveEventIndexLimit = 0
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super.init()
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setupPressureLUT()
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PencilHandler.shared = self
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}
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@objc public func setupPressureLUT(profile:OSCProfile? = nil){
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var selectedProfile:OSCProfile
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if profile == nil {
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let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
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selectedProfile = oscProfileMan.getSelectedProfile()
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}
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else{
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selectedProfile = profile!
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}
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doubleTapShorcuts.removeAll()
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if selectedProfile.doubleTapShorcutEnabled {
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if selectedProfile.eraserShortcut != "" {
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doubleTapShorcuts.append(selectedProfile.eraserShortcut)
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}
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if selectedProfile.brushShortcut != "" {
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doubleTapShorcuts.append(selectedProfile.brushShortcut)
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}
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}
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PencilHandler.squeezeStartShortcut = ""
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PencilHandler.squeezeEndShortcut = ""
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if selectedProfile.squeezeShorcutEnabled {
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PencilHandler.squeezeStartShortcut = selectedProfile.squeezeStartShortcut
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PencilHandler.squeezeEndShortcut = selectedProfile.squeezeEndShortcut
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print("squeezeShorcutEnabled \(CACurrentMediaTime())")
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}
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PencilHandler.autoHoverTermination = selectedProfile.autoPencilHoverTermination
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pressureCurveEnabled = selectedProfile.pressureCurveEnabled
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if #available(iOS 15.0, *) {
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IAPManager.checkPurchaseInfo(.PencilProPack) { info in
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self.pressureCurveEnabled = self.pressureCurveEnabled && info.valid
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self.pencilTickEnabled = self.pencilTickEnabled && info.valid
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self.pencilProEnabled = info.valid
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PencilHandler.pencilPausesNativeTouch = selectedProfile.pencilPausesNativeTouch && info.valid
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if info.valid {
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self.setupPencilInteraction(view: self.streamView)
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}
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}
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}
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let persistedCurvePoints = PressureCurve.importCurvePoints(selectedProfile.pressureCurvePoints)
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let curve = PressureCurve()
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curve.polylinePoints = persistedCurvePoints
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curve.buildCurveSegments()
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DispatchQueue.main.asyncAfter(deadline: .now()) {
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self.pressureLUT = PressureCurveLUT(curve: curve)
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}
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}
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// MARK: - Touch Events
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override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
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guard let event = event else { return }
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PencilHandler.isDrawing = true
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// isFirstMove = true
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moveEventIndex = 0
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for touch in touches {
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let coalesced = event.coalescedTouches(for: touch) ?? []
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_ = self.sendStylusEvent(touchBatch: pencilTickEnabled ? coalesced : [touch])
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}
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}
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override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
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guard let event = event else { return }
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for touch in touches {
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let coalesced = event.coalescedTouches(for: touch) ?? []
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_ = self.sendStylusEvent(touchBatch: pencilTickEnabled ? coalesced : [touch])
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}
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moveEventIndex += 1
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}
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override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
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guard let event = event else { return }
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for touch in touches {
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let coalesced = event.coalescedTouches(for: touch) ?? []
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_ = self.sendStylusEvent(touchBatch: pencilTickEnabled ? coalesced : [touch])
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}
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}
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override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
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self.touchesEnded(touches, with: event)
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}
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// MARK: - Core Logic
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func getVideoAreaSize()-> CGSize {
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guard let streamView = streamView else { return CGSize(width: 0, height: 0) }
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if streamView.bounds.size.width > streamView.bounds.size.height * CGFloat(streamAspectRatio) {
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return CGSizeMake(streamView.bounds.size.height * CGFloat(streamAspectRatio), streamView.bounds.size.height);
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} else {
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return CGSizeMake(streamView.bounds.size.width, streamView.bounds.size.width / CGFloat(streamAspectRatio));
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}
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}
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func adjustCoordinatesForVideoArea(point: CGPoint) -> CGPoint {
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guard let streamView = streamView else { return CGPoint(x: 0, y: 0) }
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var x = point.x - streamView.bounds.origin.x
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var y = point.y - streamView.bounds.origin.y
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if x < streamView.bounds.width / 2 {
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x -= 1
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} else {
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x += 1
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}
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if y < streamView.bounds.height / 2 {
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y -= 1
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} else {
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y += 1
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}
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let videoSize = getVideoAreaSize() // 返回 CGSize
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let videoOrigin = CGPoint(
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x: streamView.bounds.width / 2 - videoSize.width / 2,
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y: streamView.bounds.height / 2 - videoSize.height / 2
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)
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let confinedX = min(max(x, videoOrigin.x), videoOrigin.x + videoSize.width) - videoOrigin.x
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let confinedY = min(max(y, videoOrigin.y), videoOrigin.y + videoSize.height) - videoOrigin.y
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return CGPoint(x: confinedX, y: confinedY)
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}
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func getRotation(fromAzimuthAngle azimuthAngle: Float) -> UInt16 {
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var rotationAngle = (azimuthAngle - .pi / 2) * (180.0 / .pi) // 弧度转角度
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if rotationAngle < 0 {
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rotationAngle += 360
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}
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return UInt16(rotationAngle)
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}
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func getTilt(fromAltitudeAngle altitudeAngle: Float) -> UInt8 {
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let altitudeDegs = abs(Int16(altitudeAngle * (180.0 / .pi)))
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return UInt8(90 - min(90, Int(altitudeDegs)))
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}
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private func sendStylusEvent(touchBatch: [UITouch], with event: UIEvent? = nil) -> DispatchTime {
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guard let streamView = streamView, touchBatch.count>0 else { return .now() }
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var tickMoment: TimeInterval = 0
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var previousTimeStamp: TimeInterval = 0
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var delay:TimeInterval = 0
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var dispatchMoment: DispatchTime = .now()
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for touch in touchBatch {
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let point = touch.preciseLocation(in: streamView)
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let azimuth = touch.azimuthAngle(in: streamView)
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let altitude = touch.altitudeAngle
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let location = self.adjustCoordinatesForVideoArea(point: point)
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let videoSize = self.getVideoAreaSize()
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let normalizedLocation = CGPoint(x: location.x/videoSize.width, y: location.y/videoSize.height)
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let force = Float(touch.force/touch.maximumPossibleForce)/sin(Float(altitude))
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var targetForce = pressureCurveEnabled ? self.pressureLUT.value(at: force) : force
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let eventType:UInt8
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switch touch.phase {
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case .began:
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eventType = UInt8(manualHoverFlag ? LI_TOUCH_EVENT_HOVER : LI_TOUCH_EVENT_DOWN)
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touchBeganForce = targetForce
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case .moved:
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eventType = UInt8(manualHoverFlag ? LI_TOUCH_EVENT_HOVER : LI_TOUCH_EVENT_MOVE)
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targetForce = moveEventIndex < initialMoveEventIndexLimit ? touchBeganForce : targetForce
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case .ended:
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eventType = UInt8(LI_TOUCH_EVENT_UP)
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case .cancelled:
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eventType = UInt8(LI_TOUCH_EVENT_UP)
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default:
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eventType = UInt8(LI_TOUCH_EVENT_MOVE)
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}
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delay = manualTick ? 0.0086 : 0
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delay = eventType == UInt8(LI_TOUCH_EVENT_UP) ? delay : 0
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if previousTimeStamp == 0 {
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previousTimeStamp = touch.timestamp
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tickMoment = 0
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dispatchMoment = .now()
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}
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else {
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tickMoment += (manualTick ? tickInterval : touch.timestamp - previousTimeStamp)
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}
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let sendableForce = targetForce
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DispatchQueue.global().asyncAfter(deadline: dispatchMoment + tickMoment + delay) {
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/*
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if PencilHandler.autoHoverEnabled, eventType == UInt8(LI_TOUCH_EVENT_DOWN) {
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LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER_LEAVE), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, self.getRotation(fromAzimuthAngle: Float(azimuth)), self.getTilt(fromAltitudeAngle: Float(altitude)))
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}
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*/
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LiSendPenEvent(eventType, UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), sendableForce, 0, 0, self.getRotation(fromAzimuthAngle: Float(azimuth)), self.getTilt(fromAltitudeAngle: Float(altitude)))
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if eventType == UInt8(LI_TOUCH_EVENT_UP) {
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PencilHandler.isDrawing = false
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if PencilHandler.autoHoverTermination || !PencilHandler.hoverSupported {
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LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, self.getRotation(fromAzimuthAngle: Float(azimuth)), self.getTilt(fromAltitudeAngle: Float(altitude)))
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DispatchQueue.global().asyncAfter(deadline: .now() + 0.0086){
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if !PencilHandler.isDrawing {
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LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER_LEAVE), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, self.getRotation(fromAzimuthAngle: Float(azimuth)), self.getTilt(fromAltitudeAngle: Float(altitude)))
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}
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}
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}
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}
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}
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}
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return dispatchMoment + tickMoment + delay
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}
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@objc public func switchPencilHover(){
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manualHoverFlag = !manualHoverFlag
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}
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@objc public func enablePencilHover(){
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manualHoverFlag = true
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}
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@objc public func disablePencilHover(){
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manualHoverFlag = false
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}
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@available(iOS 12.1, *)
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private func setupPencilInteraction(view:UIView?) {
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let interaction = UIPencilInteraction()
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guard let view else { return }
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if pencilInteraction != nil {return}
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interaction.delegate = self
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view.addInteraction(interaction)
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pencilInteraction = interaction
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}
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@available(iOS 12.1, *)
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func pencilInteractionDidTap(_ interaction: UIPencilInteraction) {
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if !pencilProEnabled {return}
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if doubleTapShorcuts.isEmpty {return}
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let keyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: doubleTapShorcuts[shortcutIndex])
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print("pencilInteractionDidTap \(CACurrentMediaTime())")
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CommandManager.shared.sendAutoReleaseComboCommand(cmdStrings: keyStrings, delay: 0.1)
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shortcutIndex = (shortcutIndex + 1) % doubleTapShorcuts.count
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}
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@available(iOS 17.5, *)
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func pencilInteraction(
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_ interaction: UIPencilInteraction,
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didReceiveSqueeze squeeze: UIPencilInteraction.Squeeze
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) {
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if !pencilProEnabled {return}
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if PencilHandler.squeezeStartShortcut == "", PencilHandler.squeezeEndShortcut == "" {return}
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let keepPressedUntilRelease = PencilHandler.squeezeEndShortcut.uppercased() == "NULL"
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let squeezePressKeyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: PencilHandler.squeezeStartShortcut)
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let squeezeReleaseKeyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: PencilHandler.squeezeEndShortcut)
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guard let squeezePressKeyStrings = squeezePressKeyStrings else {return}
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guard squeezePressKeyStrings.count>0 else {return}
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switch squeeze.phase {
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case .began:
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if keepPressedUntilRelease {CommandManager.shared.sendAutoReleaseComboCommand(cmdStrings: squeezePressKeyStrings, delay: 0.1, pressOnly: true)}
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else {CommandManager.shared.sendAutoReleaseComboCommand(cmdStrings: squeezePressKeyStrings, delay: 0.1)}
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break
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case .ended, .cancelled:
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if keepPressedUntilRelease {CommandManager.shared.sendAutoReleaseComboCommand(cmdStrings: squeezePressKeyStrings, releaseOnly: true)}
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else {CommandManager.shared.sendAutoReleaseComboCommand(cmdStrings: squeezeReleaseKeyStrings, delay: 0.1)}
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break
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default:
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break
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}
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}
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@objc static private(set) var eraserShortcut:String = ""
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@objc static private(set) var brushShortcut:String = ""
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private var doubleTapShorcuts: Array<String> = []
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private var shortcutIndex: Int = 0
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@objc func replaceBrush(with shortcut:String){
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if let i = doubleTapShorcuts.indices.last {
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doubleTapShorcuts[i] = shortcut
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}
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}
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@objc func replaceEraser(with shortcut:String){
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if let i = doubleTapShorcuts.indices.first {
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doubleTapShorcuts[i] = shortcut
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}
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}
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@objc static public func enterDoubleTapShortcuts(in viewController: UIViewController){
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let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
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selectedProfile = oscProfileMan.getSelectedProfile()
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guard let selectedProfile = selectedProfile else {return}
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let alert = UIAlertController(title: SwiftLocalizationHelper.localizedString(forKey: "Eraser Shortcut"),
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message: SwiftLocalizationHelper.localizedString(forKey: "Enter eraser keyboard shortcut:"),
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preferredStyle: .alert)
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alert.addTextField { textField in
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textField.placeholder = SwiftLocalizationHelper.localizedString(forKey:"Example: e, ctrl+e, alt+e ...")
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textField.keyboardType = .asciiCapable
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textField.autocorrectionType = .no
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textField.spellCheckingType = .no
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textField.text = selectedProfile.eraserShortcut
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}
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let okAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "OK"), style: .default) { _ in
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let comboButtons = alert.textFields?[0].text ?? ""
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let keyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: comboButtons)
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if keyStrings?.count ?? 0 > 0 || comboButtons == "" {
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eraserShortcut = comboButtons
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}
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enterBrushShortcut(in: viewController)
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}
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let learnMoreAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "Learn More"), style: .default) { _ in
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if let url = URL(string: SwiftLocalizationHelper.localizedString(forKey: "pencilKeyboardCmdURL")) {
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UIApplication.shared.open(url, options: [:], completionHandler: nil)
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}
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}
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alert.addAction(learnMoreAction)
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alert.addAction(okAction)
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viewController.present(alert, animated: true, completion: {
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})
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}
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@objc static public func enterBrushShortcut(in viewController: UIViewController){
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let alert = UIAlertController(title: SwiftLocalizationHelper.localizedString(forKey: "Brush Shortcut"),
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message: SwiftLocalizationHelper.localizedString(forKey: "Enter brush keyboard shortcut:"),
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preferredStyle: .alert)
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alert.addTextField { textField in
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textField.placeholder = SwiftLocalizationHelper.localizedString(forKey:"Example: b, ctrl+b, alt+b ...")
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textField.keyboardType = .asciiCapable
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textField.autocorrectionType = .no
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textField.spellCheckingType = .no
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textField.text = selectedProfile?.brushShortcut
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}
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let okAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "OK"), style: .default) { _ in
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let comboButtons = alert.textFields?[0].text ?? ""
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let keyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: comboButtons)
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if keyStrings?.count ?? 0 > 0 || comboButtons == "" {
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brushShortcut = comboButtons
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}
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if selectedProfile?.brushShortcut != brushShortcut
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|| selectedProfile?.eraserShortcut != eraserShortcut {
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guard let selectedProfile = selectedProfile else {return}
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let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
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selectedProfile.brushShortcut = brushShortcut
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selectedProfile.eraserShortcut = eraserShortcut
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oscProfileMan.replaceSelectedProfile(with: selectedProfile, overwriteDefault: true)
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}
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}
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let learnMoreAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "Learn More"), style: .default) { _ in
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if let url = URL(string: SwiftLocalizationHelper.localizedString(forKey: "pencilKeyboardCmdURL")) {
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UIApplication.shared.open(url, options: [:], completionHandler: nil)
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}
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}
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alert.addAction(learnMoreAction)
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alert.addAction(okAction)
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viewController.present(alert, animated: true, completion: {
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})
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}
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@objc static private(set) var squeezeStartShortcut:String = ""
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@objc static private(set) var squeezeEndShortcut:String = ""
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@objc static public func enterSqueezeShortcuts(in viewController: UIViewController){
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let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
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selectedProfile = oscProfileMan.getSelectedProfile()
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guard let selectedProfile = selectedProfile else {return}
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let alert = UIAlertController(title: SwiftLocalizationHelper.localizedString(forKey: "Squeeze Shortcut"),
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message: SwiftLocalizationHelper.localizedString(forKey: "enterSqueezePressShort"),
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preferredStyle: .alert)
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alert.addTextField { textField in
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textField.placeholder = SwiftLocalizationHelper.localizedString(forKey:"Example: e, ctrl+e, alt+e ...")
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textField.keyboardType = .asciiCapable
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textField.autocorrectionType = .no
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textField.spellCheckingType = .no
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textField.text = selectedProfile.squeezeStartShortcut
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}
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let okAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "OK"), style: .default) { _ in
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let comboButtons = alert.textFields?[0].text ?? ""
|
|
let keyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: comboButtons)
|
|
if keyStrings?.count ?? 0 > 0 || comboButtons == "" {
|
|
squeezeStartShortcut = comboButtons
|
|
}
|
|
enterSqueezeEndShortcut(in: viewController)
|
|
}
|
|
|
|
let learnMoreAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "Learn More"), style: .default) { _ in
|
|
if let url = URL(string: SwiftLocalizationHelper.localizedString(forKey: "pencilKeyboardCmdURL")) {
|
|
UIApplication.shared.open(url, options: [:], completionHandler: nil)
|
|
}
|
|
}
|
|
|
|
alert.addAction(learnMoreAction)
|
|
alert.addAction(okAction)
|
|
|
|
viewController.present(alert, animated: true, completion: {
|
|
})
|
|
}
|
|
|
|
@objc static public func enterSqueezeEndShortcut(in viewController: UIViewController){
|
|
|
|
let alert = UIAlertController(title: SwiftLocalizationHelper.localizedString(forKey: "Squeeze Shortcut"),
|
|
message: SwiftLocalizationHelper.localizedString(forKey: "enterSqueezeReleaseShort"),
|
|
preferredStyle: .alert)
|
|
|
|
alert.addTextField { textField in
|
|
textField.placeholder = SwiftLocalizationHelper.localizedString(forKey:"Example: b, ctrl+b, alt+b ...")
|
|
textField.keyboardType = .asciiCapable
|
|
textField.autocorrectionType = .no
|
|
textField.spellCheckingType = .no
|
|
textField.text = selectedProfile?.squeezeEndShortcut
|
|
}
|
|
|
|
let okAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "OK"), style: .default) { _ in
|
|
let comboButtons = alert.textFields?[0].text ?? ""
|
|
let keyStrings = CommandManager.shared.extractAutoReleaseButtonStrings(from: comboButtons)
|
|
if keyStrings?.count ?? 0 > 0 || comboButtons == "" {
|
|
squeezeEndShortcut = comboButtons
|
|
}
|
|
|
|
if selectedProfile?.squeezeEndShortcut != squeezeEndShortcut
|
|
|| selectedProfile?.squeezeStartShortcut != squeezeStartShortcut {
|
|
guard let selectedProfile = selectedProfile else {return}
|
|
let oscProfileMan = OSCProfilesManager.sharedManager(CGRectZero)
|
|
selectedProfile.squeezeEndShortcut = squeezeEndShortcut
|
|
selectedProfile.squeezeStartShortcut = squeezeStartShortcut
|
|
oscProfileMan.replaceSelectedProfile(with: selectedProfile, overwriteDefault: true)
|
|
}
|
|
}
|
|
|
|
let learnMoreAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "Learn More"), style: .default) { _ in
|
|
if let url = URL(string: SwiftLocalizationHelper.localizedString(forKey: "pencilKeyboardCmdURL")) {
|
|
UIApplication.shared.open(url, options: [:], completionHandler: nil)
|
|
}
|
|
}
|
|
|
|
alert.addAction(learnMoreAction)
|
|
alert.addAction(okAction)
|
|
|
|
viewController.present(alert, animated: true, completion: {
|
|
|
|
})
|
|
}
|
|
|
|
private func attachHoverLeave(normalizedLocation:CGPoint){
|
|
DispatchQueue.global().asyncAfter(deadline: .now()+0.0086) {
|
|
LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, 0, 0)
|
|
DispatchQueue.global().asyncAfter(deadline: .now()+0.0086) {
|
|
// LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER_LEAVE), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, 0, 0)
|
|
}
|
|
}
|
|
}
|
|
|
|
private func preTouchHoverActionAt(normalizedLocation:CGPoint){
|
|
DispatchQueue.global().asyncAfter(deadline: .now()+0.0086) {
|
|
LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, 0, 0)
|
|
DispatchQueue.global().asyncAfter(deadline: .now()+0.0086) {
|
|
LiSendPenEvent(UInt8(LI_TOUCH_EVENT_HOVER_LEAVE), UInt8(LI_TOOL_TYPE_PEN), 0, Float(normalizedLocation.x), Float(normalizedLocation.y), 0, 0, 0, 0, 0)
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|