/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
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** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL3$
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
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import QtQuick 2.10
import QtQuick.Controls 2.3
import QtQuick.Controls.impl 2.3
import QtQuick.Templates 2.3 as T

T.DelayButton {
    id: control

    implicitWidth: Math.max(background ? background.implicitWidth : 0,
                            contentItem.implicitWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(background ? background.implicitHeight : 0,
                             contentItem.implicitHeight + topPadding + bottomPadding)
    baselineOffset: contentItem.y + contentItem.baselineOffset

    padding: 6
    leftPadding: padding + 2
    rightPadding: padding + 2

    transition: Transition {
        NumberAnimation {
            duration: control.delay * (control.pressed ? 1.0 - control.progress : 0.3 * control.progress)
        }
    }

    contentItem: ItemGroup {
        ClippedText {
            clip: control.progress > 0
            clipX: -control.leftPadding + control.progress * control.width
            clipWidth: (1.0 - control.progress) * control.width
            visible: control.progress < 1

            text: control.text
            font: control.font
            opacity: enabled ? 1 : 0.3
            color: control.palette.buttonText
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
            elide: Text.ElideRight
        }

        ClippedText {
            clip: control.progress > 0
            clipX: -control.leftPadding
            clipWidth: control.progress * control.width
            visible: control.progress > 0

            text: control.text
            font: control.font
            opacity: enabled ? 1 : 0.3
            color: control.palette.brightText
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
            elide: Text.ElideRight
        }
    }

    background: Rectangle {
        implicitWidth: 100
        implicitHeight: 40
        color: Color.blend(control.palette.button, control.palette.mid, control.down ? 0.5 : 0.0)
        border.color: control.palette.highlight
        border.width: control.visualFocus ? 2 : 0

        PaddedRectangle {
            padding: control.visualFocus ? 2 : 0
            width: control.progress * parent.width
            height: parent.height
            color: Color.blend(control.palette.dark, control.palette.mid, control.down ? 0.5 : 0.0)
        }
    }
}
