Qt 5.6 | Qt Multimedia | QML Video Shader Effects Example | HintedMouseArea.qml Example File

Qt 5.6.2 Reference Documentation

# HintedMouseArea.qml Example File

multimedia/video/qmlvideofx/qml/qmlvideofx/HintedMouseArea.qml

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      // Mouse area which flashes to indicate its location on the screen

      import QtQuick 2.0

      MouseArea {
          property alias hintColor: hintRect.color
          property bool hintEnabled: true

          Rectangle {
              id: hintRect
              anchors.fill: parent
              color: "yellow"
              opacity: 0

              states: [
                  State {
                      name: "high"
                      PropertyChanges {
                          target: hintRect
                          opacity: 0.8
                      }
                  },
                  State {
                      name: "low"
                      PropertyChanges {
                          target: hintRect
                          opacity: 0.4
                      }
                  }
              ]

              transitions: [
                  Transition {
                      from: "low"
                      to: "high"
                      SequentialAnimation {
                          NumberAnimation {
                              properties: "opacity"
                              easing.type: Easing.InOutSine
                              duration: 500
                          }
                          ScriptAction { script: hintRect.state = "low" }
                      }
                  },
                  Transition {
                      from: "*"
                      to: "low"
                      SequentialAnimation {
                          NumberAnimation {
                              properties: "opacity"
                              easing.type: Easing.InOutSine
                              duration: 500
                          }
                          ScriptAction { script: hintRect.state = "high" }
                      }
                  },
                  Transition {
                      from: "*"
                      to: "baseState"
                      NumberAnimation {
                          properties: "opacity"
                          easing.type: Easing.InOutSine
                          duration: 500
                      }
                  }
              ]
          }

          onHintEnabledChanged: hintRect.state = hintEnabled ? "low" : "baseState"

          Component.onCompleted: hintRect.state = "low"
      }