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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

import QtQuick
import QtQuick.Templates as T
import QtQuick.Controls.impl
import QtQuick.Controls.Material
import QtQuick.Controls.Material.impl

T.Button {
    id: control

    implicitWidth: Math.max(implicitBackgroundWidth + leftInset + rightInset,
                            implicitContentWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(implicitBackgroundHeight + topInset + bottomInset,
                             implicitContentHeight + topPadding + bottomPadding)

    topInset: 6
    bottomInset: 6
    padding: 12
    horizontalPadding: padding - 4
    spacing: 6

    icon.width: 24
    icon.height: 24
    icon.color: !enabled ? Material.hintTextColor :
        flat && highlighted ? Material.accentColor :
        highlighted ? Material.primaryHighlightedTextColor : Material.foreground

    Material.elevation: flat ? control.down || control.hovered ? 2 : 0
                             : control.down ? 8 : 2
    Material.background: flat ? "transparent" : undefined

    contentItem: IconLabel {
        spacing: control.spacing
        mirrored: control.mirrored
        display: control.display

        icon: control.icon
        text: control.text
        font: control.font
        color: !control.enabled ? control.Material.hintTextColor :
            control.flat && control.highlighted ? control.Material.accentColor :
            control.highlighted ? control.Material.primaryHighlightedTextColor : control.Material.foreground
    }

    background: Rectangle {
        implicitWidth: 64
        implicitHeight: control.Material.buttonHeight

        radius: 2
        color: !control.enabled ? control.Material.buttonDisabledColor :
                control.highlighted ? (control.checked ? control.Material.highlightedCheckedButtonColor :
                control.Material.highlightedButtonColor) : control.Material.buttonColor

        PaddedRectangle {
            y: parent.height - 4
            width: parent.width
            height: 4
            radius: 2
            topPadding: -2
            clip: true
            visible: control.checkable && (!control.highlighted || control.flat)
            color: control.checked && control.enabled ? control.Material.accentColor : control.Material.secondaryTextColor
        }

        // The layer is disabled when the button color is transparent so you can do
        // Material.background: "transparent" and get a proper flat button without needing
        // to set Material.elevation as well
        layer.enabled: control.enabled && control.Material.buttonColor.a > 0
        layer.effect: ElevationEffect {
            elevation: control.Material.elevation
        }

        Ripple {
            clipRadius: 2
            width: parent.width
            height: parent.height
            pressed: control.pressed
            anchor: control
            active: control.down || control.visualFocus || control.hovered
            color: control.flat && control.highlighted ? control.Material.highlightedRippleColor : control.Material.rippleColor
        }
    }
}