Qt 5.9 | Qt Sensors | Qt Sensors - SensorGesture QML Type example | Button.qml Example File

Qt 5.9.9 Reference Documentation

# Button.qml Example File

qmlsensorgestures/Button.qml

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      //Import the declarative plugins
      import QtQuick 2.0

      //Implementation of the Button control.
      Item {
          id: button
          width: 30
          height: 30
          property alias buttonText: innerText.text;
          property color color: "white"
          property color hoverColor: "#aaaaaa"
          property color pressColor: "slategray"
          property int fontSize: 10
          property int borderWidth: 1
          property int borderRadius: 2
          scale: state === "Pressed" ? 0.96 : 1.0
          onEnabledChanged: state = ""
          signal clicked

          //define a scale animation
          Behavior on scale {
              NumberAnimation {
                  duration: 100
                  easing.type: Easing.InOutQuad
              }
          }

          //Rectangle to draw the button
          Rectangle {
              id: rectangleButton
              anchors.fill: parent
              radius: borderRadius
              color: button.enabled ? button.color : "grey"
              border.width: borderWidth
              border.color: "black"

              Text {
                  id: innerText
                  font.pointSize: fontSize
                  anchors.centerIn: parent
              }
          }

          //change the color of the button in differen button states
          states: [
              State {
                  name: "Hovering"
                  PropertyChanges {
                      target: rectangleButton
                      color: hoverColor
                  }
              },
              State {
                  name: "Pressed"
                  PropertyChanges {
                      target: rectangleButton
                      color: pressColor
                  }
              }
          ]

          //define transmission for the states
          transitions: [
              Transition {
                  from: ""; to: "Hovering"
                  ColorAnimation { duration: 200 }
              },
              Transition {
                  from: "*"; to: "Pressed"
                  ColorAnimation { duration: 10 }
              }
          ]

          //Mouse area to react on click events
          MouseArea {
              hoverEnabled: true
              anchors.fill: button
              onEntered: { button.state='Hovering'}
              onExited: { button.state=''}
              onClicked: { button.clicked();}
              onPressed: { button.state="Pressed" }
              onReleased: {
                  if (containsMouse)
                    button.state="Hovering";
                  else
                    button.state="";
              }
          }
      }