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import Qt 4.7

import "Core"

import "Core/calculator.js" as CalcEngine

Rectangle {

    id: window

    width: 480; height: 360

    color: "#282828"

    property string rotateLeft: "\u2939"

    property string rotateRight: "\u2935"

    property string leftArrow: "\u2190"

    property string division : "\u00f7"

    property string multiplication : "\u00d7"

    property string squareRoot : "\u221a"

    property string plusminus : "\u00b1"

    function doOp(operation) { CalcEngine.doOperation(operation) }

    Item {

        id: main

        state: "orientation " + runtime.orientation

        width: parent.width; height: parent.height; anchors.centerIn: parent

        Column {

            id: box; spacing: 8

            anchors { fill: parent; topMargin: 6; bottomMargin: 6; leftMargin: 6; rightMargin: 6 }

            }

            Column {

                id: column; spacing: 6

                property real h: ((box.height - 72) / 6) - ((spacing * (6 - 1)) / 6)

                property real w: (box.width / 4) - ((spacing * (4 - 1)) / 4)

                Row {

                    spacing: 6

                    Button { width: column.w; height: column.h; color: 'purple'; operation: leftArrow }

                    Button { width: column.w; height: column.h; color: 'purple'; operation: "C" }

                    Button { width: column.w; height: column.h; color: 'purple'; operation: "AC" }

                }

                Row {

                    spacing: 6

                    property real w: (box.width / 4) - ((spacing * (4 - 1)) / 4)

                    Button { width: column.w; height: column.h; color: 'green'; operation: "mc" }

                    Button { width: column.w; height: column.h; color: 'green'; operation: "m+" }

                    Button { width: column.w; height: column.h; color: 'green'; operation: "m-" }

                    Button { width: column.w; height: column.h; color: 'green'; operation: "mr" }

                }

                Grid {

                    property real w: (box.width / columns) - ((spacing * (columns - 1)) / columns)

                    Button { width: grid.w; height: column.h; operation: "7"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "8"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "9"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: division }

                    Button { width: grid.w; height: column.h; operation: squareRoot }

                    Button { width: grid.w; height: column.h; operation: "4"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "5"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "6"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: multiplication }

                    Button { width: grid.w; height: column.h; operation: "x^2" }

                    Button { width: grid.w; height: column.h; operation: "1"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "2"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "3"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "-" }

                    Button { width: grid.w; height: column.h; operation: "1/x" }

                    Button { width: grid.w; height: column.h; operation: "0"; color: 'blue' }

                    Button { width: grid.w; height: column.h; operation: "." }

                    Button { width: grid.w; height: column.h; operation: plusminus }

                    Button { width: grid.w; height: column.h; operation: "+" }

                    Button { width: grid.w; height: column.h; operation: "="; color: 'red' }

                }

            }

        }

        states: [

            State {

                name: "orientation " + Orientation.Landscape

            },

            State {

                name: "orientation " + Orientation.PortraitInverted

            },

            State {

                name: "orientation " + Orientation.LandscapeInverted

            }

        ]

        transitions: Transition {

            SequentialAnimation {

                PropertyAction { target: rotateButton; property: "operation" }

                RotationAnimation { direction: RotationAnimation.Shortest; duration: 300; easing.type: Easing.InOutQuint  }

                NumberAnimation { properties: "x,y,width,height"; duration: 300; easing.type: Easing.InOutQuint }

            }

        }

    }

}