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import Qt 4.7

import "../common" as Common

Flipable {

    id: container

    property variant frontContainer: containerFront

    property string photoTitle: ""

    property string photoTags: ""

    property int photoWidth

    property int photoHeight

    property string photoType

    property string photoAuthor

    property string photoDate

    property string photoUrl

    property int rating: 2

    property variant prevScale: 1.0

    signal closed

    transform: Rotation {

        id: itemRotation

        origin.x: container.width / 2;

        axis.y: 1; axis.z: 0

    }

    front: Item {

        id: containerFront; anchors.fill: container

        Rectangle {

            anchors.fill: parent

            color: "black"; opacity: 0.4

        }

        Column {

            spacing: 10

            anchors {

                left: parent.left; leftMargin: 20

                right: parent.right; rightMargin: 20

                top: parent.top; topMargin: 180

            }

            Text { font.bold: true; color: "white"; elide: Text.ElideRight; text: container.photoTitle }

            Text { color: "white"; elide: Text.ElideRight; text: "<b>Size:</b> " + container.photoWidth + 'x' + container.photoHeight }

            Text { color: "white"; elide: Text.ElideRight; text: "<b>Type:</b> " + container.photoType }

            Text { color: "white"; elide: Text.ElideRight; text: "<b>Author:</b> " + container.photoAuthor }

            Text { color: "white"; elide: Text.ElideRight; text: "<b>Published:</b> " + container.photoDate }

            Text { color: "white"; elide: Text.ElideRight; text: container.photoTags == "" ? "" : "<b>Tags:</b> " }

            Text { color: "white"; elide: Text.ElideRight; text: container.photoTags }

        }

    }

    back: Item {

        anchors.fill: container

        Rectangle { anchors.fill: parent; color: "black"; opacity: 0.4 }

        Common.Progress {

            anchors.centerIn: parent; width: 200; height: 18

            progress: bigImage.progress; visible: bigImage.status != Image.Ready

        }

        Flickable {

            id: flickable; anchors.fill: parent; clip: true

            contentWidth: imageContainer.width; contentHeight: imageContainer.height

            Item {

                id: imageContainer

                width: Math.max(bigImage.width * bigImage.scale, flickable.width);

                height: Math.max(bigImage.height * bigImage.scale, flickable.height);

                Image {

                    id: bigImage; source: container.photoUrl; scale: slider.value

                    anchors.centerIn: parent; smooth: !flickable.movingVertically

                    onStatusChanged : {

                        // Default scale shows the entire image.

                        if (status == Image.Ready && width != 0) {

                            slider.minimum = Math.min(flickable.width / width, flickable.height / height);

                            prevScale = Math.min(slider.minimum, 1);

                            slider.value = prevScale;

                        }

                    }

                }

            }

        }

        Text {

            text: "Image Unavailable"

            visible: bigImage.status == Image.Error

            anchors.centerIn: parent; color: "white"; font.bold: true

        }

        Common.Slider {

            id: slider; visible: { bigImage.status == Image.Ready && maximum > minimum }

            anchors {

                bottom: parent.bottom; bottomMargin: 65

                left: parent.left; leftMargin: 25

                right: parent.right; rightMargin: 25

            }

            onValueChanged: {

                if (bigImage.width * value > flickable.width) {

                    var xoff = (flickable.width/2 + flickable.contentX) * value / prevScale;

                    flickable.contentX = xoff - flickable.width/2;

                }

                if (bigImage.height * value > flickable.height) {

                    var yoff = (flickable.height/2 + flickable.contentY) * value / prevScale;

                    flickable.contentY = yoff - flickable.height/2;

                }

                prevScale = value;

            }

        }

    }

    states: State {

        name: "Back"

        PropertyChanges { target: itemRotation; angle: 180 }

    }

    transitions: Transition {

        SequentialAnimation {

            PropertyAction { target: bigImage; property: "smooth"; value: false }

            NumberAnimation { easing.type: Easing.InOutQuad; properties: "angle"; duration: 500 }

            PropertyAction { target: bigImage; property: "smooth"; value: !flickable.movingVertically }

        }

    }

}