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<h1 class="title">AppleTVInput.qml Example File</h1>
<span class="subtitle">planets-qml/AppleTVInput.qml</span>
<!-- $$$planets-qml/AppleTVInput.qml-description -->
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  /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the Qt3D module of the Qt Toolkit.
  **
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  ** Commercial License Usage
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  ** accordance with the commercial license agreement provided with the
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  import QtQuick 2.7
  import QtQuick.Window 2.2

  Item {
      id: appleTVInput

      property real xThreshold: 500
      property real yThreshold: 300

      signal swipeLeft()
      signal swipeRight()
      signal swipeUp()
      signal swipeDown()

      onSwipeLeft: {
          var focusedItem = Window.window.activeFocusItem
          if (typeof(focusedItem.swipeLeft) === "function") {
              focusedItem.swipeLeft()
          }
      }

      onSwipeRight: {
          var focusedItem = Window.window.activeFocusItem
          if (typeof(focusedItem.swipeRight) === "function") {
              focusedItem.swipeRight()
          }
      }

      onSwipeUp: {
          var focusedItem = Window.window.activeFocusItem
          if (typeof(focusedItem.swipeUp) === "function") {
              focusedItem.swipeUp()
          }
      }

      onSwipeDown: {
          var focusedItem = Window.window.activeFocusItem
          if (typeof(focusedItem.swipeDown) === "function") {
              focusedItem.swipeDown()
          }
      }

      MultiPointTouchArea {
          id: multiPointTouchArea

          anchors.fill: parent

          property int startX: 0
          property int startY: 0

          property int pointX: 0
          property int pointY: 0

          property int xIsIncreasing: -1 // 1 - true, 0 - false, -1 - undefined
          property int yIsIncreasing: -1 // 1 - true, 0 - false, -1 - undefined

          property bool pressed: false

          touchPoints: [
              TouchPoint {

                  onPressedChanged: {
                      if (pressed) {
                          multiPointTouchArea.startX = x
                          multiPointTouchArea.startY = y
                          multiPointTouchArea.pressed = true
                      } else {
                          multiPointTouchArea.pressed = false
                          multiPointTouchArea.xIsIncreasing = -1
                          multiPointTouchArea.yIsIncreasing = -1
                          multiPointTouchArea.startX = 0
                          multiPointTouchArea.startY = 0
                      }
                  }

                  onXChanged: {
                      if (multiPointTouchArea.pressed) {
                          var newValue = x - multiPointTouchArea.startX

                          var focusedItem = appleTVInput.Window.window.activeFocusItem

                          if (focusedItem.panningEnabled) {
                              if (multiPointTouchArea.xIsIncreasing === -1) {
                                  multiPointTouchArea.xIsIncreasing = (newValue > multiPointTouchArea.startX) ? 1 : 0
                              } else {
                                  if (multiPointTouchArea.xIsIncreasing === 1 && newValue < multiPointTouchArea.pointX) {
                                      multiPointTouchArea.startX = x
                                      multiPointTouchArea.xIsIncreasing = 0
                                      multiPointTouchArea.pointX = newValue
                                  } else if (multiPointTouchArea.xIsIncreasing === 0 && newValue > multiPointTouchArea.pointX) {
                                      multiPointTouchArea.startX = x
                                      multiPointTouchArea.xIsIncreasing = 1
                                      multiPointTouchArea.pointX = newValue
                                  } else {
                                      multiPointTouchArea.pointX = newValue
                                      focusedItem.pannedHorizontally(multiPointTouchArea.pointX / (multiPointTouchArea.width / 2))
                                  }
                              }
                          } else {
                              multiPointTouchArea.pointX = newValue

                              if (multiPointTouchArea.pointX > xThreshold) {
                                  multiPointTouchArea.startX = x
                                  swipeRight()
                              } else if (multiPointTouchArea.pointX < -xThreshold) {
                                  multiPointTouchArea.startX = x
                                  swipeLeft()
                              }
                          }
                      }
                  }

                  onYChanged: {
                      if (multiPointTouchArea.pressed) {
                          var newValue = multiPointTouchArea.startY - y

                          var focusedItem = appleTVInput.Window.window.activeFocusItem

                          if (focusedItem.panningEnabled) {
                              if (multiPointTouchArea.yIsIncreasing === -1) {
                                  multiPointTouchArea.yIsIncreasing = (newValue > multiPointTouchArea.startY) ? 1 : 0
                              } else {
                                  if (multiPointTouchArea.yIsIncreasing === 1 && newValue < multiPointTouchArea.pointY) {
                                      multiPointTouchArea.startY = y
                                      multiPointTouchArea.yIsIncreasing = 0
                                      multiPointTouchArea.pointY = newValue
                                  } else if (multiPointTouchArea.yIsIncreasing === 0 && newValue > multiPointTouchArea.pointY) {
                                      multiPointTouchArea.startY = y
                                      multiPointTouchArea.yIsIncreasing = 1
                                      multiPointTouchArea.pointY = newValue
                                  } else {
                                      multiPointTouchArea.pointY = newValue
                                      focusedItem.pannedVertically(multiPointTouchArea.pointY / (multiPointTouchArea.height / 2))
                                  }
                              }
                          } else {
                              multiPointTouchArea.pointY = newValue

                              if (multiPointTouchArea.pointY > yThreshold) {
                                  multiPointTouchArea.startY = y
                                  swipeUp()
                              } else if (multiPointTouchArea.pointY < -yThreshold) {
                                  multiPointTouchArea.startY = y
                                  swipeDown()
                              }
                          }
                      }
                  }
              }
          ]
      }
  }

</pre>
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