// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

import QtQuick
import "../.."

// The two current wallpapers with a transition at `progress`, laid out as the
// cover lays them out in WallpaperSpread.qml, for the transitions page. Draws
// nothing while either wallpaper is unknown.
Item {
    id: view
    property string name: "burn"
    property real progress: 0
    property point origin: Qt.point(0.5, 0.5)
    readonly property bool shows: Wallpapers.currentH !== "" && Wallpapers.currentV !== ""

    Image {
        id: newImg
        visible: view.shows
        anchors.fill: parent
        source: view.shows ? "file://" + Wallpapers.currentV : ""
        fillMode: Image.PreserveAspectCrop
        sourceSize: Qt.size(view.width, view.height)
        asynchronous: true
        layer.enabled: view.shows
    }
    Image {
        visible: view.shows
        anchors.fill: parent
        source: view.shows ? "file://" + Wallpapers.currentH : ""
        fillMode: Image.PreserveAspectCrop
        sourceSize: Qt.size(view.width, view.height)
        asynchronous: true
        layer.enabled: view.shows
        layer.effect: WallShader {
            name: view.name
            target: newImg
            progress: view.progress
            aspect: view.width / Math.max(1, view.height)
            origin: view.origin
        }
    }
}