calqlatr.qml Example File

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  ** This file is part of the examples of the Qt Toolkit.
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  import QtQuick 2.0
  import "content"
  import "content/calculator.js" as CalcEngine

  Rectangle {
      id: window
      width: 320
      height: 480
      focus: true
      color: "#272822"

      onWidthChanged: controller.reload()
      onHeightChanged: controller.reload()

      function operatorPressed(operator) {
          CalcEngine.operatorPressed(operator)
          numPad.buttonPressed()
      }
      function digitPressed(digit) {
          CalcEngine.digitPressed(digit)
          numPad.buttonPressed()
      }
      function isButtonDisabled(op) {
          return CalcEngine.disabled(op)
      }

      Item {
          id: pad
          width: 180
          NumberPad { id: numPad; y: 10; anchors.horizontalCenter: parent.horizontalCenter }
      }

      AnimationController {
          id: controller
          animation: ParallelAnimation {
              id: anim
              NumberAnimation { target: display; property: "x"; duration: 400; from: -16; to: window.width - display.width; easing.type: Easing.InOutQuad }
              NumberAnimation { target: pad; property: "x"; duration: 400; from: window.width - pad.width; to: 0; easing.type: Easing.InOutQuad }
              SequentialAnimation {
                  NumberAnimation { target: pad; property: "scale"; duration: 200; from: 1; to: 0.97; easing.type: Easing.InOutQuad }
                  NumberAnimation { target: pad; property: "scale"; duration: 200; from: 0.97; to: 1; easing.type: Easing.InOutQuad }
              }
          }
      }

      Keys.onPressed: {
          if (event.key == Qt.Key_0)
              digitPressed("0")
          else if (event.key == Qt.Key_1)
              digitPressed("1")
          else if (event.key == Qt.Key_2)
              digitPressed("2")
          else if (event.key == Qt.Key_3)
              digitPressed("3")
          else if (event.key == Qt.Key_4)
              digitPressed("4")
          else if (event.key == Qt.Key_5)
              digitPressed("5")
          else if (event.key == Qt.Key_6)
              digitPressed("6")
          else if (event.key == Qt.Key_7)
              digitPressed("7")
          else if (event.key == Qt.Key_8)
              digitPressed("8")
          else if (event.key == Qt.Key_9)
              digitPressed("9")
          else if (event.key == Qt.Key_Plus)
              operatorPressed("+")
          else if (event.key == Qt.Key_Minus)
              operatorPressed("−")
          else if (event.key == Qt.Key_Asterisk)
              operatorPressed("×")
          else if (event.key == Qt.Key_Slash)
              operatorPressed("÷")
          else if (event.key == Qt.Key_Enter || event.key == Qt.Key_Return)
              operatorPressed("=")
          else if (event.key == Qt.Key_Comma || event.key == Qt.Key_Period)
              digitPressed(".")
          else if (event.key == Qt.Key_Backspace)
              operatorPressed("backspace")
      }

      Display {
          id: display
          x: -16
          width: window.width - pad.width
          height: parent.height

          MouseArea {
              property real startX: 0
              property real oldP: 0
              property bool rewind: false

              anchors {
                  bottom: parent.bottom
                  left: parent.left
                  right: parent.right
              }
              height: 50
              onPositionChanged: {
                  var reverse = startX > window.width / 2
                  var mx = mapToItem(window, mouse.x).x
                  var p = Math.abs((mx - startX) / (window.width - display.width))
                  if (p < oldP)
                      rewind = reverse ? false : true
                  else
                      rewind = reverse ? true : false
                  controller.progress = reverse ? 1 - p : p
                  oldP = p
              }
              onPressed: startX = mapToItem(window, mouse.x).x
              onReleased: {
                  if (rewind)
                      controller.completeToBeginning()
                  else
                      controller.completeToEnd()
              }
          }
      }

  }