摘要：圖片被壓縮了看起來(lái)很難看主進(jìn)程代碼渲染進(jìn)程代碼界面代碼代碼創(chuàng)建畫(huà)布創(chuàng)建圖片對(duì)象初始化畫(huà)布大小愛(ài)你一輩子感謝你喜歡你初始化生成范圍偏移量縮放比例最小文字位置設(shè)置文字屬性填充字符串重新初始化位置重新初始化位置放大

圖片被壓縮了 看起來(lái)很難看

import {BrowserWindow, app, ipcMain} from "electron"

createWindow();

ipcMain.on("quitApp", () => {
    app.quit();
});

function createWindow() {

    const loginURL = process.env.NODE_ENV === "development" ? `http://localhost:9080` : `file://${__dirname}/index.html`;
    const win = new BrowserWindow({

        alwaysOnTop: true,
        modal: true,
        width: 1200,
        height: 6500,
        frame: false,
        show: false,
        darkTheme: true,
        resizable: false,
        minimizable: false,
        maximizable: false,
        transparent: true,
        type: "toolbar",
        webPreferences: {
            devTools: false,
        }
    });
    win.loadURL(loginURL);
    win.once("ready-to-show", () => {
        win.show();
    });
}

 mounted() {
            var hearts = [];
            var canvas = this.$refs.drawHeart;
            var wW = 1920;
            var wH = 1040;
            // 創(chuàng)建畫(huà)布
            var ctx = canvas.getContext("2d");
            // 創(chuàng)建圖片對(duì)象
            var heartImage = new Image();
            heartImage.src = img;
            var num = 100;

            init();

            window.addEventListener("resize", function(){
                wW = window.innerWidth;
                wH = window.innerHeight;
            });
            // 初始化畫(huà)布大小
            function init(){
                canvas.width = wW;
                canvas.height = wH;
                for(var i = 0; i < num; i++){
                    hearts.push(new Heart(i%5));
                }
                requestAnimationFrame(render);
            }

            function getColor(){
                var val = Math.random() * 10;
                if(val > 0 && val <= 1){
                    return "#00f";
                } else if(val > 1 && val <= 2){
                    return "#f00";
                } else if(val > 2 && val <= 3){
                    return "#0f0";
                } else if(val > 3 && val <= 4){
                    return "#368";
                } else if(val > 4 && val <= 5){
                    return "#666";
                } else if(val > 5 && val <= 6){
                    return "#333";
                } else if(val > 6 && val <= 7){
                    return "#f50";
                } else if(val > 7 && val <= 8){
                    return "#e96d5b";
                } else if(val > 8 && val <= 9){
                    return "#5be9e9";
                } else {
                    return "#d41d50";
                }
            }

            function getText(){
                var val = Math.random() * 10;
                if(val > 1 && val <= 3){
                    return "愛(ài)你一輩子";
                } else if(val > 3 && val <= 5){
                    return "感謝你";
                } else if(val > 5 && val <= 8){
                    return "喜歡你";
                } else{
                    return "I Love You";
                }
            }

            function Heart(type){
                this.type = type;
                // 初始化生成范圍
                this.x = Math.random() * wW;
                this.y = Math.random() * wH;

                this.opacity = Math.random() * .5 + .5;

                // 偏移量
                this.vel = {
                    x: (Math.random() - .5) * 5,
                    y: (Math.random() - .5) * 5
                }

                this.initialW = wW * .5;
                this.initialH = wH * .5;
                // 縮放比例
                this.targetScale = Math.random() * .15 + .02; // 最小0.02
                this.scale = Math.random() * this.targetScale;

                // 文字位置
                this.fx = Math.random() * wW;
                this.fy = Math.random() * wH;
                this.fs = Math.random() * 10;
                this.text = getText();

                this.fvel = {
                    x: (Math.random() - .5) * 5,
                    y: (Math.random() - .5) * 5,
                    f: (Math.random() - .5) * 2
                }
            }

            Heart.prototype.draw = function(){
                ctx.save();
                ctx.globalAlpha = this.opacity;
                ctx.drawImage(heartImage, this.x, this.y, this.width, this.height);
                ctx.scale(this.scale + 1, this.scale + 1);
                if(!this.type){
                    // 設(shè)置文字屬性
                    ctx.fillStyle = getColor();
                    ctx.font = "italic " + this.fs + "px sans-serif";
                    // 填充字符串
                    ctx.fillText(this.text, this.fx, this.fy);
                }
                ctx.restore();
            }
            Heart.prototype.update = function(){
                this.x += this.vel.x;
                this.y += this.vel.y;

                if(this.x - this.width > wW || this.x + this.width < 0){
                    // 重新初始化位置
                    this.scale = 0;
                    this.x = Math.random() * wW;
                    this.y = Math.random() * wH;
                }
                if(this.y - this.height > wH || this.y + this.height < 0){
                    // 重新初始化位置
                    this.scale = 0;
                    this.x = Math.random() * wW;
                    this.y = Math.random() * wH;
                }

                // 放大
                this.scale += (this.targetScale - this.scale) * .1;
                this.height = this.scale * this.initialH;
                this.width = this.height * 1.4;

                // -----文字-----
                this.fx += this.fvel.x;
                this.fy += this.fvel.y;
                this.fs += this.fvel.f;

                if(this.fs > 50){
                    this.fs = 2;
                }

                if(this.fx - this.fs > wW || this.fx + this.fs < 0){
                    // 重新初始化位置
                    this.fx = Math.random() * wW;
                    this.fy = Math.random() * wH;
                }
                if(this.fy - this.fs > wH || this.fy + this.fs < 0){
                    // 重新初始化位置
                    this.fx = Math.random() * wW;
                    this.fy = Math.random() * wH;
                }
            }

            function render(){
                ctx.clearRect(0, 0, wW, wH);
                for(var i = 0; i < hearts.length; i++){
                    hearts[i].draw();
                    hearts[i].update();
                }
                requestAnimationFrame(render);
            }

        }

const size = screen.getPrimaryDisplay().workAreaSize;   //獲取顯示器的寬高
win.setSet(size.width size.height);
win.setPosition(0,0);

這樣就會(huì)讓窗口全屏 但是有一個(gè)問(wèn)題 就是這樣做界面不會(huì)正確響應(yīng) 我們可以使用進(jìn)程通信去解決

win.webContents.sen("windowSize",size);

之后再主進(jìn)程中監(jiān)聽(tīng)就行了

以上代碼會(huì)有一個(gè)問(wèn)題 就是一旦運(yùn)行 就不能關(guān)閉了

win.setIgnoreMouseEvents(true) 就可以讓界面只做展示使用 鼠標(biāo)可以點(diǎn)擊你窗口的任意區(qū)域