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import Qt 4.7
import Qt.labs.gestures 2.0

Item {
    id: myRow

    width: 300
    height: parent.height

    property variant reparentWidget: myRow
    property variant topLevel: myRow
    BorderImage {
        id: tapWidgetContainer
        source: "images/columnbg.png"
        border.left: 20; border.top: 20
        border.right: 20; border.bottom: 20
        width: parent.width
        height: col.height + 100

        property int maxY : (tapWidgetContainer.childrenRect.height > topLevel.height) ?
                                0 : (topLevel.height - tapWidgetContainer.childrenRect.height)
        property int minY : (tapWidgetContainer.childrenRect.height > topLevel.height) ?
                                -(tapWidgetContainer.childrenRect.height - topLevel.height) : 0

        Column {
            id: col
            anchors.horizontalCenter: parent.horizontalCenter
            spacing: 32
            x:20
            y:20

            ExpandableWidget {
                id: firstWidget
                width:200
                widget: StrokeList {
                    GestureArea {
                        anchors.fill: parent
                        Tap {
                            when: firstWidget.fullScreen != true
                            onFinished: {
                                backButton.visible = true
                                firstWidget.fullScreen = !firstWidget.fullScreen
                            }
                        }
                        TapAndHold {
                            when: firstWidget.fullScreen != true
                        }
                        Swipe {
                            when: firstWidget.fullScreen != true
                        }
                    }
                    BorderImage {
                        id: backButton
                        anchors.top: parent.top
                        anchors.left: parent.left
                        visible: false
                        opacity: 1
                        source: "images/button.png"
                        Text {
                            anchors.centerIn: parent
                            font.pointSize: 20
                            text: "Back"
                        }

                        GestureArea {
                            anchors.fill: parent
                            Tap {
                                when: firstWidget.fullScreen == true
                                onFinished: {
                                    backButton.visible = false
                                    firstWidget.fullScreen = !firstWidget.fullScreen
                                }
                            }
                        }
                    }
                }
                fullScreenWidget: myRow.reparentWidget
            }
            ExpandableWidget {
                id: secondWidget
                widget: RotatableImage {
                    GestureArea {
                        anchors.fill: parent
                        Tap { onFinished: secondWidget.fullScreen = !secondWidget.fullScreen }
                    }
                }
                fullScreenWidget: myRow.reparentWidget
            }
            ExpandableWidget {
                id: thirdWidget
                widget: RotatableImage {
                    GestureArea {
                        anchors.fill: parent
                        Tap { onFinished: thirdWidget.fullScreen = !thirdWidget.fullScreen }
                    }
                }
                fullScreenWidget: myRow.reparentWidget
            }
            ExpandableWidget {
                id: fourthWidget
                widget: RotatableImage {
                    GestureArea {
                        anchors.fill: parent
                        Tap { onFinished: fourthWidget.fullScreen = !fourthWidget.fullScreen }
                    }
                }
                fullScreenWidget: myRow.reparentWidget
            }
            ExpandableWidget {
                id: fifthWidget
                widget: RotatableImage {
                    GestureArea {
                        anchors.fill: parent
                        Tap { onFinished: fifthWidget.fullScreen = !fifthWidget.fullScreen }
                    }
                }
                fullScreenWidget: myRow.reparentWidget
            }
        }
    }

    GestureArea {
        id: rowGestureArea
        anchors.fill: parent

        Pan {
            when: Math.abs(gesture.delta.y) > Math.abs(gesture.delta.x)
            onUpdated: {
                tapWidgetContainer.pos.y = tapWidgetContainer.pos.y + gesture.delta.y;

                if (tapWidgetContainer.pos.y > tapWidgetContainer.maxY) { // limit pan down
                    tapWidgetContainer.pos.y = tapWidgetContainer.maxY;
                }
                else if (tapWidgetContainer.pos.y < tapWidgetContainer.minY) {// limit pan up
                    tapWidgetContainer.pos.y = tapWidgetContainer.minY;
                }
            }
        }
    }
}