Qt Quick Demo - Calqlatr

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import QtQuick 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 { id: mouseInput 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, mouseInput.mouseX, mouseInput.mouseY).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, mouseInput.mouseX, mouseInput.mouseY).x onReleased: { if (rewind) controller.completeToBeginning() else controller.completeToEnd() } } } }