app/qml/SpeedTimer.qml

import QtQuick 2.9
import QtMultimedia 5.8
import QtQuick.Window 2.2
import QtQuick.Controls 2.2
import "."
import "./components"
import "./styles"

Item {
    id: control
    property color color
    property string text: qsTr("Click start to start")
    property string elide
    property int pixelSize: 100
    property int scale: 1

    property var toppadConn
    property var startpadConn
    property var baseConn

    property double startTime: 0
    property double stopTime: 0
    property double stoppedTime: 0
    property double reactionTime: 0

    property double currTime: 0

    signal stopped()
    signal startCanceled(bool falseStart)
    anchors.fill: parent
    state: "IDLE"

    Label {
        id: time
        text: parent.text
        scale: parent.scale
        anchors.centerIn: parent
        font.pixelSize: parent.pixelSize
        elide: parent.elide
        color: StyleSettings.textColor
        Behavior on text {
            enabled: control.state !== "RUNNING"
            FadeAnimation {
                target: time
            }
        }

    }

    function setStarting(){
        control.state = "STARTING"
    }

    function start(inMilliSeconds){

        control.state = "STARTING"
        control.startTime = new Date().getTime() + inMilliSeconds //set the startime to be 0 after the starttone

        startTimer.interval = inMilliSeconds
        startTimer.start()
    }

    function stop(type){
        //_cppStartpadConn.appendCommand("SET_LED_STARTING");
        switch(type){
        case "toppad":
            //the buzzer was pushed
            control.stopTime = control.toppadConn.lastTriggered + control.toppadConn.offset
            control.stoppedTime = control.stopTime - control.startTime
            control.stopped()
            //time.text = ( root.stoppedTime / 1000 ).toFixed(3) + " sec"
            //console.log("STOPPED: "+control.stoppedTime + " started at: " + control.startTime + " offset: "+ control.buzzer_offset + "lastpressed: " + control.last_button_pressed)
            break
        case "manual":
            //the stop button was pressed
            if(baseConn.state === "connected"){
                control.stoppedTime = baseConn.getTime("raw")
                time.text = (control.stoppedTime / 1000).toFixed(3) + " sec"
                return
            }
            control.stopTime = new Date().getTime()
            control.stoppedTime = control.stopTime - control.startTime
            control.stopped()
            break
        case "false":
            //there was a false start
            control.stoppedTime = -1
            startTimer.stop()
            control.state = "STOPPED"
            control.startCanceled(true)
            break
        case "cancel":
            //the cancel button was pressed
            control.stoppedTime = 0
            startTimer.stop()
            control.state = "STOPPED"
            control.startCanceled(false)
            break
        }
        control.state = "STOPPED"
    }

    function reset(){

        control.startTime = 0
        control.stopTime = 0
        control.stoppedTime = 0

        if(baseConn.state === "connected"){
            var ret = baseConn.sendCommand("CMD_RESET_TIMER")
            if(ret !== "OK"){
                control.state = "IDLE"
                return
            }
        }

        control.state = "IDLE"
    }

    function handleStartpad(){
        console.log("startpad triggered")
        var offset = control.startpadConn.offset
        var last_pressed = control.startpadConn.lastTriggered
        var trigger_time = (last_pressed + offset)
        control.reactionTime = trigger_time - control.startTime
        if(trigger_time - control.startTime <= 0){
            stop("false")
        }
    }

    function handleToppad(){
        console.log(lastTriggered)
        stop("toppad")
    }

    Timer {
        id: startTimer
        running: false
        repeat: false
        onTriggered: {
            console.log("started")
            control.state = "RUNNING"
        }
    }

    Timer {
        //timer that updates the currTime variable
        running: true
        repeat: true
        interval: 1
        onTriggered: {
            control.currTime = new Date().getTime()
        }
    }


    states: [
        State {
            name: "IDLE"
            //state for the start page
            PropertyChanges { target: time; text: qsTr("Click start to start");}
        },
        State {
            name: "STARTING"
            //state for the start sequence
            PropertyChanges { target: time; text: control.text;}
        },
        State {
            name: "RUNNING"
            //state when the timer is running
            PropertyChanges { target: time; text: Math.abs( ( ( control.currTime - control.startTime ) / 1000 ) ).toFixed(3) + " sec";}
        },

        State {
            name: "STOPPED"
            //state when the meassuring is over
            PropertyChanges {
                target: time;
                text: control.stoppedTime >= 0 ? ( control.stoppedTime / 1000 ).toFixed(3) + " sec":qsTr("false start");
            }
        }
    ]
}