Qt QML自定義實作帶圖示的按鈕

文章目錄

• • • 示範
    • 代碼實作
    • 實際調用

示範

• 圖示文本可自定義
• 按下顔色可自定義
• 進入顔色可自定義
• 退出顔色可自定義
• 可自定義滑鼠左鍵按下功能
• 可自定義滑鼠右鍵按下功能

代碼實作

MyIconButton.qml檔案

import QtQuick 2.0

Rectangle {
    id: rec

    property alias img_src: icon.source
    property alias btn_txt: button.text

    property color clr_enter: "#dcdcdc"
    property color clr_exit: "#ffffff"
    property color clr_click: "#aba9b2"
    property color clr_release: "#ffffff"

    //自定義點選信号
    signal clickedLeft()
    signal clickedRight()
    signal release()

    width: 130
    height: 130
    radius: 10

    Image {
        id: icon
        width: 80
        height: 80
        source: "qrc:/camera.png"
        fillMode: Image.PreserveAspectFit
        clip: true
        anchors.top: parent.top
        anchors.right: parent.right
        anchors.left: parent.left
        anchors.margins: 10
    }

    Text {
        id: button
        text: qsTr("button")

        anchors.top: icon.bottom
        anchors.topMargin: 5
        anchors.horizontalCenter: icon.horizontalCenter
        anchors.bottom: icon.bottom
        anchors.bottomMargin: 5

        font.bold: true
        font.pointSize: 14
    }

    MouseArea {
        id: mouseArea
        anchors.fill: parent
        hoverEnabled: true

        //接受左鍵和右鍵輸入
        acceptedButtons: Qt.LeftButton | Qt.RightButton
        onClicked: {
            //左鍵點選
            if (mouse.button === Qt.LeftButton)
            {
                parent.clickedLeft()
//                console.log(button.text + " Left button click")
            }
            else if(mouse.button === Qt.RightButton)
            {
                parent.clickedRight()
//                console.log(button.text + " Right button click")
            }
        }

        //按下
        onPressed: {
            color = clr_click
        }

        //釋放
        onReleased: {
            color = clr_enter
            parent.release()
            console.log("Release")
        }

        //指針進入
        onEntered: {
            color = clr_enter
//            console.log(button.text + " mouse entered")
        }

        //指針退出
        onExited: {
            color = clr_exit
//            console.log(button.text + " mouse exited")
        }
    }
}

           

實際調用

mai.qml檔案

import QtQuick 2.9
import QtQuick.Window 2.2

Window {
    visible: true
    width: 800
    height: 480
    title: qsTr("Hello World")

    Text {
        id: info
        text: qsTr("無按鍵點選")
        anchors.bottom: parent.bottom
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.margins: 20
        font.bold: true
        font.pixelSize: 20
    }

    function setInfoText(str)
    {
        info.text = str;
    }


    Row {
        spacing: 20
        anchors.centerIn: parent

        MyIconButton {
            id: btn_camera
            img_src: "qrc:/camera.png";
            btn_txt: "相機"
            onClickedLeft: setInfoText(btn_txt + " Left Button click")
            onClickedRight: setInfoText(btn_txt + " Right Button click")
        }

        MyIconButton {
            id: btn_video
            img_src: "qrc:/dianshiju-.png";
            btn_txt: "視訊"
            onClickedLeft: setInfoText(btn_txt + " Left Button click")
            onClickedRight: setInfoText(btn_txt + " Right Button click")
        }

        MyIconButton {
            id: btn_audio
            img_src: "qrc:/music.png";
            btn_txt: "音樂"
            onClickedLeft: setInfoText(btn_txt + " Left Button click")
            onClickedRight: setInfoText(btn_txt + " Right Button click")
        }
    }
}