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import QtQuick 2.11
import QtQuick.Templates 2.4 as T
import QtQuick.Controls.Imagine 2.4
import QtQuick.Controls.Imagine.impl 2.4

T.RangeSlider {
    id: control

    implicitWidth: Math.max(background ? background.implicitWidth : 0,
                            Math.max(first.handle ? first.handle.implicitWidth : 0,
                                     second.handle ? second.handle.implicitWidth : 0) + leftPadding + rightPadding)
    implicitHeight: Math.max(background ? background.implicitHeight : 0,
                             Math.max(first.handle ? first.handle.implicitHeight : 0,
                                      second.handle ? second.handle.implicitHeight : 0) + topPadding + bottomPadding)

    topPadding: background ? background.topPadding : 0
    leftPadding: background ? background.leftPadding : 0
    rightPadding: background ? background.rightPadding : 0
    bottomPadding: background ? background.bottomPadding : 0

    first.handle: Image {
        x: control.leftPadding + (control.horizontal ? control.first.visualPosition * (control.availableWidth - width) : (control.availableWidth - width) / 2)
        y: control.topPadding + (control.horizontal ? (control.availableHeight - height) / 2 : control.first.visualPosition * (control.availableHeight - height))

        source: Imagine.url + "rangeslider-handle"
        ImageSelector on source {
            states: [
                {"first": true},
                {"vertical": control.vertical},
                {"horizontal": control.horizontal},
                {"disabled": !control.enabled},
                {"pressed": control.first.pressed},
                {"focused": control.first.handle.activeFocus},
                {"mirrored": control.mirrored},
                {"hovered": control.first.hovered}
            ]
        }
    }

    second.handle: Image {
        x: control.leftPadding + (control.horizontal ? control.second.visualPosition * (control.availableWidth - width) : (control.availableWidth - width) / 2)
        y: control.topPadding + (control.horizontal ? (control.availableHeight - height) / 2 : control.second.visualPosition * (control.availableHeight - height))

        source: Imagine.url + "rangeslider-handle"
        ImageSelector on source {
            states: [
                {"second": true},
                {"vertical": control.vertical},
                {"horizontal": control.horizontal},
                {"disabled": !control.enabled},
                {"pressed": control.second.pressed},
                {"focused": control.second.handle.activeFocus},
                {"mirrored": control.mirrored},
                {"hovered": control.second.hovered}
            ]
        }
    }

    background: NinePatchImage {
        x: -leftInset; y: -topInset
        width: control.width + leftInset + rightInset
        height: control.height + topInset + bottomInset
        scale: control.horizontal && control.mirrored ? -1 : 1

        source: Imagine.url + "rangeslider-background"
        NinePatchImageSelector on source {
            states: [
                {"vertical": control.vertical},
                {"horizontal": control.horizontal},
                {"disabled": !control.enabled},
                {"focused": control.visualFocus},
                {"mirrored": control.mirrored},
                {"hovered": control.hovered}
            ]
        }

        NinePatchImage {
            x: control.horizontal ? control.first.handle.width / 2 + control.first.position * (parent.width - control.first.handle.width) : (parent.width - width) / 2
            y: control.horizontal ? (parent.height - height) / 2 : control.first.handle.height / 2 + control.second.visualPosition * (parent.height - control.first.handle.height)
            width: control.horizontal ? control.second.position * (parent.width - control.first.handle.width) - control.first.position * (parent.width - control.first.handle.width) : parent.width
            height: control.vertical ? control.second.position * (parent.height - control.first.handle.height) - control.first.position * (parent.height - control.first.handle.height): parent.height

            source: Imagine.url + "rangeslider-progress"
            NinePatchImageSelector on source {
                states: [
                    {"vertical": control.vertical},
                    {"horizontal": control.horizontal},
                    {"disabled": !control.enabled},
                    {"focused": control.visualFocus},
                    {"mirrored": control.mirrored},
                    {"hovered": control.hovered}
                ]
            }
        }
    }
}
