js+css实现在线可视化谱曲五线谱导出pdf和midi文件代码-html代码-BFW代码库

代码语言：html

所属分类：多媒体

代码描述：js+css实现在线可视化谱曲五线谱导出pdf和midi文件代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>乐章工坊 · 在线作曲工作台</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/all.6.4.0.css">
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/abcjs-basic-min.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jspdf.umd.min.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/html2canvas.1.4.1.js"></script>
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0f0a07;
    --bg-paper: #1a1410;
    --bg-card: #211a14;
    --bg-elevated: #2b221a;
    --bg-deeper: #0a0705;
    --border: #3d2f23;
    --border-bright: #5a4630;
    --fg: #f5ead0;
    --fg-muted: #a08a6a;
    --fg-dim: #6b5a42;
    --accent: #d4a574;
    --accent-bright: #f4c889;
    --accent-deep: #a37341;
    --accent-glow: rgba(212, 165, 116, 0.3);
    --success: #8fbc8f;
    --danger: #d97070;
    --warning: #e8a04a;
    --paper: #faf3e0;
    --paper-shade: #f0e6cc;
    --paper-line: #2c2218;
}

html, body { height: 100%; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--fg);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(212, 165, 116, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(163, 115, 65, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 0% 100%, rgba(212, 165, 116, 0.05) 0%, transparent 60%);
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--accent) 50%, transparent 100%);
    z-index: 1000;
    opacity: 0.6;
}

/* === HEADER === */
header {
    background: linear-gradient(180deg, rgba(33, 26, 20, 0.95) 0%, rgba(15, 10, 7, 0.95) 100%);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 24px;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--accent-bright) 0%, var(--accent) 50%, var(--accent-deep) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 4px 16px var(--accent-glow),
        inset 0 1px 0 rgba(255, 220, 180, 0.5),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: 9px;
    background: linear-gradient(180deg, rgba(255,255,255,0.15) 0%, transparent 50%);
    pointer-events: none;
}

.logo-text {
    font-family: 'Cormorant Garamond', serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--fg);
    letter-spacing: 0.5px;
    line-height: 1;
}

.logo-subtitle {
    font-size: 10px;
    color: var(--fg-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 4px;
    font-weight: 500;
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-deeper);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 12px;
    color: var(--fg-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--fg-dim);
    transition: all 0.3s;
}

.status-dot.active {
    background: var(--success);
    box-shadow: 0 0 12px var(--success);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* === BUTTONS === */
.btn {
    padding: 9px 14px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--fg);
    border-radius: 7px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
}

.btn:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    color: var(--accent-bright);
    transform: translateY(-1px);
}

.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    border-color: var(--accent);
    color: var(--bg);
    font-weight: 600;
    box-shadow: 
        0 2px 8px rgba(212, 165, 116, 0.2),
        inset 0 1px 0 rgba(255, 220, 180, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-bright) 0%, var(--accent) 100%);
    color: var(--bg);
    box-shadow: 
        0 6px 20px var(--accent-glow),
        inset 0 1px 0 rgba(255, 220, 180, 0.4);
    transform: translateY(-2px);
}

.btn-danger:hover {
    background: rgba(217, 112, 112, 0.15);
    border-color: var(--danger);
    color: var(--danger);
}

/* === LAYOUT === */
.main-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    padding: 24px 32px;
    max-width: 1600px;
    margin: 0 auto;
}

/* === SCORE AREA === */
.score-area {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(212, 165, 116, 0.1);
    display: flex;
    flex-direction: column;
}

.score-toolbar {
    padding: 14px 20px;
    background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-paper) 100%);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.title-input {
    background: transparent;
    border: none;
    color: var(--fg);
    font-family: 'Cormorant Garamond', serif;
    font-size: 22px;
    font-weight: 600;
    width: 220px;
    outline: none;
    border-bottom: 1px dashed transparent;
    padding: 4px 0;
    transition: border-color 0.2s;
}

.title-input:hover, .title-input:focus {
    border-bottom-color: var(--accent);
}

.composer-input {
    background: transparent;
    border: none;
    color: var(--fg-muted);
    font-family: 'Cormorant Garamond', serif;
    font-size: 15px;
    font-style: italic;
    width: 120px;
    outline: none;
    border-bottom: 1px dashed transparent;
    padding: 4px 0;
    transition: border-color 0.2s;
}

.composer-input:hover, .composer-input:focus {
    border-bottom-color: var(--accent);
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
}

.toolbar-label {
    font-size: 11px;
    color: var(--fg-muted.........完整代码请登录后点击上方下载按钮下载查看