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import Qt 4.7

import "content"

// This example shows how items can be dynamically added to and removed from

// a ListModel, and how these list modifications can be animated.

Rectangle {

    id: container

    width: 500; height: 400

    color: "#343434"

    // The model:

    ListModel {

        id: fruitModel

        ListElement {

            name: "Apple"; cost: 2.45

            attributes: [

                ListElement { description: "Core" },

                ListElement { description: "Deciduous" }

            ]

        }

        ListElement {

            name: "Banana"; cost: 1.95

            attributes: [

                ListElement { description: "Tropical" },

                ListElement { description: "Seedless" }

            ]

        }

        ListElement {

            name: "Cumquat"; cost: 3.25

            attributes: [

                ListElement { description: "Citrus" }

            ]

        }

        ListElement {

            name: "Durian"; cost: 9.95

            attributes: [

                ListElement { description: "Tropical" },

                ListElement { description: "Smelly" }

            ]

        }

    }

    // The delegate for each fruit in the model:

    Component {

        id: listDelegate

        Item {

            id: delegateItem

            width: listView.width; height: 55

            clip: true

            Row {

                anchors.verticalCenter: parent.verticalCenter

                spacing: 10

                Column {

                    Image {

                        source: "content/pics/arrow-up.png"

                        MouseArea { anchors.fill: parent; onClicked: fruitModel.move(index, index-1, 1) }

                    }

                    Image { source: "content/pics/arrow-down.png"

                        MouseArea { anchors.fill: parent; onClicked: fruitModel.move(index, index+1, 1) }

                    }

                }

                Column {

                    anchors.verticalCenter: parent.verticalCenter

                    Text { 

                        text: name

                        font.pixelSize: 15

                        color: "white"

                    }

                    Row {

                        spacing: 5

                        Repeater {

                            model: attributes

                            Text { text: description; color: "White" }

                        }

                    }

                }

            }

            Row {

                anchors.verticalCenter: parent.verticalCenter

                anchors.right: parent.right

                spacing: 10

                PressAndHoldButton {

                    anchors.verticalCenter: parent.verticalCenter

                    source: "content/pics/plus-sign.png"

                    onClicked: fruitModel.setProperty(index, "cost", cost + 0.25)

                }

                Text { 

                    id: costText

                    anchors.verticalCenter: parent.verticalCenter

                    text: '$' + Number(cost).toFixed(2)

                    font.pixelSize: 15

                    color: "white"

                    font.bold: true

                }

                PressAndHoldButton {

                    anchors.verticalCenter: parent.verticalCenter

                    source: "content/pics/minus-sign.png"

                    onClicked: fruitModel.setProperty(index, "cost", Math.max(0,cost-0.25))

                }

                Image {

                    source: "content/pics/list-delete.png"

                    MouseArea { anchors.fill:parent; onClicked: fruitModel.remove(index) }

                }

            }

            // Animate adding and removing of items:

            ListView.onAdd: SequentialAnimation {

                PropertyAction { target: delegateItem; property: "height"; value: 0 }

                NumberAnimation { target: delegateItem; property: "height"; to: 55; duration: 250; easing.type: Easing.InOutQuad }

            }

            ListView.onRemove: SequentialAnimation {

                PropertyAction { target: delegateItem; property: "ListView.delayRemove"; value: true }

                NumberAnimation { target: delegateItem; property: "height"; to: 0; duration: 250; easing.type: Easing.InOutQuad }

                // Make sure delayRemove is set back to false so that the item can be destroyed

                PropertyAction { target: delegateItem; property: "ListView.delayRemove"; value: false }

            }

        }

    }

    // The view:

    ListView {

        id: listView

        anchors.fill: parent; anchors.margins: 20

        model: fruitModel

        delegate: listDelegate

    }

    Row {

        anchors { left: parent.left; bottom: parent.bottom; margins: 20 }

        spacing: 10

        TextButton { 

            text: "Add an item"

            onClicked: {

                fruitModel.append({

                    "name": "Pizza Margarita",

                    "cost": 5.95,

                    "attributes": [{"description": "Cheese"}, {"description": "Tomato"}]

                })

            }

        }

        TextButton { 

            text: "Remove all items" 

            onClicked: fruitModel.clear()

        }

    }

}