Leafer实现canvas画布画板拖动代码-html代码-BFW代码库

Leafer实现canvas画布画板拖动代码

代码语言：html

所属分类：其他

代码描述：Leafer实现canvas画布画板拖动代码

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" />
    <title>LeaferUI - 流程图编辑器示例</title>
<script src="https://unpkg.com/leafer-ui@2.1.0/dist/web.min.js"></script>
    <script src="https://unpkg.com/@leafer-in/view@2.1.0/dist/view.min.js"></script>
  <script src="https://unpkg.com/@leafer-in/viewport@2.1.0/dist/viewport.min.js"></script>

    <style>
        :root {
            --bg: #1a1d23;
            --panel-bg: #252830;
            --text: #e0e0e0;
            --text-secondary: #a0a4b0;
            --accent: #5b9bd5;
            --accent-hover: #6db5f0;
            --danger: #e0556a;
            --danger-hover: #f0657a;
            --border: #3a3d45;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
            --radius: 10px;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background: var(--bg);
            overflow: hidden;
            height: 100vh;
            width: 100vw;
            user-select: none;
            -webkit-user-select: none;
            -webkit-tap-highlight-color: transparent;
        }

        /* 画布容器 */
        #canvas-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            cursor: grab;
            background:
                radial-gradient(circle at 50% 50%, #1f2329 0%, #181a1f 100%),
                repeating-linear-gradient(0deg,
                    transparent,
                    transparent 39px,
                    rgba(255, 255, 255, 0.015) 39px,
                    rgba(255, 255, 255, 0.015) 40px),
                repeating-linear-gradient(90deg,
                    transparent,
                    transparent 39px,
                    rgba(255, 255, 255, 0.015) 39px,
                    rgba(255, 255, 255, 0.015) 40px);
        }

        #canvas-container:active {
            cursor: grabbing;
        }

        #canvas-container.grabbing {
            cursor: grabbing;
        }

        /* 顶部工具栏 */
        .toolbar {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 100;
            display: flex;
            gap: 8px;
            background: var(--panel-bg);
            border: 1px solid var(--border);
            border-radius: 28px;
            padding: 6px 8px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .toolbar button {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 18px;
            border: 1px solid transparent;
            background: transparent;
            color: var(--text);
            border-radius: 22px;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: var(--transition);
            white-space: nowrap;
            font-family: inherit;
            outline: none;
        }

        .toolbar button:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border);
        }
        .toolbar button:active {
            background: rgba(255, 255, 255, 0.1);
            transform: scale(0.96);
        }
        .toolbar button.accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            font-weight: 600;
        }
        .toolbar button.accent:hover {
            background: var(--accent-hover);
        }
        .toolbar button.danger {
            background: transparent;
            color: var(--danger);
            border-color: transparent;
        }
        .toolbar button.danger:hover {
            background: rgba(224, 85, 106, 0.12);
            border-color: rgba(224, 85, 106, 0.3);
            color: var(--danger-hover);
        }

        .toolbar .divider {
            width: 1px;
            background: var(--border);
            margin: 4px 4px;
            border-radius: 1px;
        }

        .toolbar .zoom-label {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
            min-width: 52px;
            justify-content: center;
            font-variant-numeric: tabular-nums;
            font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  .........完整代码请登录后点击上方下载按钮下载查看