[QML開發筆記]-QML陰影遮罩窗口

[QML開發筆記]-QML陰影遮罩窗口

QML陰影遮罩效果.來自官網示例中.可作爲自定義消息提示窗口，有陰影遮罩效果。

效果：

代碼：

Dialog.qml

import QtQuick 2.0
/**
* @FileName      Dialog.qml
* @brief         陰影遮罩效果
* @author        Kongdemin
* @date          2020-05
*/
Rectangle {
    id: root
    color: "transparent"
    opacity: 0.0
    property alias enabled: mouseArea.enabled
    property int dialogWidth: 300
    property int dialogHeight: 200
    state: enabled ? "on" : "baseState"

    states: [
        State {
            name: "on"
            PropertyChanges {
                target: root
                opacity: 1.0
            }
        }
    ]

    transitions: [
        Transition {
            from: "*"
            to: "*"
            NumberAnimation {
                properties: "opacity"
                easing.type: Easing.OutQuart
                duration: 500
            }
        }
    ]

    Rectangle {
        anchors.fill: parent
        color: "black"
        opacity: 0.75
    }

    Rectangle {
        anchors.centerIn: parent
        width: dialogWidth
        height: dialogHeight
        radius: 5
        color: "white"

        Text {
            id: text
            anchors.fill: parent
            anchors.margins: 10
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
            color: "black"
            wrapMode: Text.WordWrap
        }
    }

    MouseArea {
        id: mouseArea
        anchors.fill: parent
        onClicked: root.enabled = false
    }

    function show(msg) {
        text.text = "<b>Dialog</b><br><br>" + msg
        root.enabled = true
    }
}

main.qml

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12
/**
* @FileName      main.qml
* @brief         File Description
* @author        Kongdemin
* @date          2020-05
*/

Window {
    id: window
    visible: true
    width: 640
    height: 480
    title: qsTr("QML陰影遮罩窗口")

    Button {
        id: control
        anchors.centerIn: parent
        text: "Show Dialog"

        contentItem: Text {
            text: control.text
            font: control.font
            opacity: enabled ? 1.0 : 0.3
            color: control.down ? "#17a81a" : "#21be2b"
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
            elide: Text.ElideRight
        }

        background: Rectangle {
            implicitWidth: 100
            implicitHeight: 40
            opacity: enabled ? 1 : 0.3
            border.color: control.down ? "#17a81a" : "#21be2b"
            border.width: 2
            radius: 2
        }

        onClicked: {
            dialog.show("This is a dialog demo.")
        }
    }

    Dialog {
        id: dialog
        anchors.fill: parent
        enabled: false
    }
}