AppleTVInput.qml Example File | Qt 3D 5.9

Qt 5.9 | Qt 3D | Qt 3D: Planets QML Example | AppleTVInput.qml Example File

Qt 5.9.9 Reference Documentation

# AppleTVInput.qml Example File

planets-qml/AppleTVInput.qml

      /****************************************************************************
      **
      ** 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.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** Commercial License Usage
      ** Licensees holding valid commercial Qt licenses may use this file in
      ** accordance with the commercial license agreement provided with the
      ** Software or, alternatively, in accordance with the terms contained in
      ** a written agreement between you and The Qt Company. For licensing terms
      ** and conditions see https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** BSD License Usage
      ** Alternatively, you may use this file under the terms of the BSD license
      ** as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      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()
                                  }
                              }
                          }
                      }
                  }
              ]
          }
      }