@@ -0,0 +1,900 @@
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||||
:root {
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||||
--primary-color: #0f62fe;
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||||
--primary-hover: #3b82ff;
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||||
--secondary-color: #3b485f;
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||||
--secondary-hover: #52627d;
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||||
--accent-color: #22d3ee;
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||||
--accent-soft: rgba(34, 211, 238, 0.18);
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||||
--surface-color: rgba(255, 255, 255, 0.8);
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||||
--surface-strong: rgba(255, 255, 255, 0.92);
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||||
--border-color: rgba(109, 128, 162, 0.22);
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||||
--text-color: #10203a;
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||||
--muted-text: #5e6c84;
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||||
--shadow-soft: 0 20px 45px rgba(15, 35, 95, 0.12);
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||||
--shadow-strong: 0 18px 50px rgba(15, 98, 254, 0.18);
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||||
--page-glow-1: rgba(15, 98, 254, 0.2);
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||||
--page-glow-2: rgba(34, 211, 238, 0.18);
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--dark-bg: #121212;
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--dark-text: #e0e0e0;
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--dark-fieldset-bg: #1e1e1e;
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--dark-border: #333;
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--dark-code-bg: #2d2d2d;
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--dark-log-bg: #2a2a2a;
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--dark-input-bg: #2d2d2d;
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--dark-input-text: #e0e0e0;
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}
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body {
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margin: 0;
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padding: 0;
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font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
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color: var(--text-color);
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background:
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radial-gradient(circle at top left, var(--page-glow-1), transparent 32%),
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radial-gradient(circle at top right, var(--page-glow-2), transparent 28%),
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linear-gradient(135deg, #eef5ff 0%, #f6fbff 45%, #f8f9fd 100%);
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min-height: 100vh;
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position: relative;
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}
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body::before,
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body::after {
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content: "";
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position: fixed;
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inset: auto;
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width: 42vw;
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height: 42vw;
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border-radius: 50%;
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pointer-events: none;
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filter: blur(60px);
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opacity: 0.45;
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z-index: 0;
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}
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body::before {
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top: -12vw;
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right: -10vw;
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background: rgba(15, 98, 254, 0.12);
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}
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body::after {
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bottom: -14vw;
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left: -8vw;
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background: rgba(34, 211, 238, 0.1);
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}
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button {
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padding: 0.5rem 0.95rem;
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border: 1px solid transparent;
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border-radius: 8px;
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margin-bottom: 5px;
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white-space: nowrap;
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cursor: pointer;
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font-size: 0.9rem;
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font-weight: 600;
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letter-spacing: 0.01em;
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transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
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box-shadow: 0 10px 20px rgba(16, 32, 58, 0.08);
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backdrop-filter: blur(8px);
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}
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button:hover {
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transform: translateY(-1px);
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}
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button:disabled {
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opacity: 0.65;
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cursor: not-allowed;
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box-shadow: none;
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}
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button.primary {
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color: #fff;
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background: linear-gradient(135deg, var(--primary-color), #2388ff);
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box-shadow: 0 12px 24px rgba(15, 98, 254, 0.28);
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}
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button.primary:hover {
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color: #fff;
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border-color: rgba(255, 255, 255, 0.3);
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background: linear-gradient(135deg, var(--primary-hover), #45c3ff);
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box-shadow: 0 16px 30px rgba(15, 98, 254, 0.34);
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}
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button.secondary {
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color: var(--text-color);
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background: rgba(255, 255, 255, 0.72);
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border-color: rgba(109, 128, 162, 0.22);
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}
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button.secondary:hover {
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color: var(--text-color);
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border-color: rgba(59, 72, 95, 0.24);
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background: rgba(255, 255, 255, 0.95);
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}
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h3 {
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padding: 1.6rem 0 1rem;
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margin: 0 0 1.25rem;
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border-bottom: 1px solid rgba(131, 149, 186, 0.26);
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text-align: center;
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font-size: clamp(1.5rem, 2vw, 2rem);
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font-weight: 800;
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letter-spacing: 0.04em;
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color: #0f1f44;
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text-shadow: 0 10px 25px rgba(15, 98, 254, 0.12);
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}
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fieldset {
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border: none;
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box-shadow: var(--shadow-soft);
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background: linear-gradient(180deg, var(--surface-strong), var(--surface-color));
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padding: 16px 16px 12px;
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margin-bottom: 18px;
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border-radius: 10px;
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border: 1px solid var(--border-color);
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position: relative;
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overflow: hidden;
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}
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fieldset::before {
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content: "";
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position: absolute;
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inset: 0 auto auto 0;
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width: 100%;
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height: 1px;
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background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.65), transparent);
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opacity: 0.85;
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}
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fieldset legend {
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font-weight: bold;
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color: #1862d9;
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padding: 0 10px;
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font-size: 0.95rem;
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letter-spacing: 0.08em;
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}
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code {
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padding: .2em .4em;
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margin: 0;
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font-size: 85%;
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background: #ccc;
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border-radius: 3px;
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}
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input[type=text],
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textarea,
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input[type=date],
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input[type=number],
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select {
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font-size: 1rem;
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font-weight: 400;
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line-height: 1.5;
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color: var(--text-color);
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border: 1px solid rgba(121, 140, 176, 0.26);
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border-radius: 6px;
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padding: .45rem .85rem;
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max-width: 100%;
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box-sizing: border-box;
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background: rgba(255, 255, 255, 0.86);
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box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
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transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
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}
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input[type=file] {
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font-size: 1rem;
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font-weight: 400;
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line-height: 1.5;
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color: var(--text-color);
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max-width: 100%;
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}
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input::file-selector-button {
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font-size: 0.9rem;
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font-weight: 600;
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line-height: 1.5;
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border: 1px solid rgba(121, 140, 176, 0.26);
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border-radius: 8px;
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cursor: pointer;
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padding: 0.45rem 0.95rem;
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margin-right: 10px;
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color: var(--text-color);
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background: rgba(255, 255, 255, 0.9);
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transition: transform 0.2s ease, box-shadow 0.2s ease;
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}
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input::file-selector-button:hover {
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transform: translateY(-1px);
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box-shadow: 0 10px 20px rgba(16, 32, 58, 0.08);
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}
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select {
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padding: .45rem 2.25rem .45rem .85rem;
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}
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input:focus,
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textarea:focus,
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select:focus {
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border: 1px solid rgba(15, 98, 254, 0.55);
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box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.14);
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outline: 0;
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background: #fff;
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}
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input[type=text]:disabled,
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textarea:disabled,
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input[type=date]:disabled,
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input[type=number]:disabled,
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select:disabled {
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opacity: 0.65;
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cursor: not-allowed;
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background-color: #e9ecef;
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color: #6c757d;
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}
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label {
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margin-right: 4px;
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white-space: nowrap;
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color: var(--muted-text);
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font-weight: 600;
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}
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.main {
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width: 100%;
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max-width: 950px;
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margin: 0 auto;
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padding: 0 1rem 1.5rem;
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background: transparent;
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font-size: 1rem;
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font-weight: 400;
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line-height: 1.5;
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box-sizing: border-box;
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position: relative;
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z-index: 1;
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}
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.footer {
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display: flex;
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gap: 10px;
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font-size: 0.8rem;
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color: var(--muted-text);
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flex-wrap: wrap;
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margin: 1rem 0 2rem;
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justify-content: center;
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}
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.footer .links {
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display: flex;
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align-items: center;
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}
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.footer .links a {
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color: var(--muted-text);
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text-decoration: none;
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position: relative;
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padding: 0 8px;
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}
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.footer .links a:first-child {
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padding-left: 0;
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}
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.footer .links a:not(:last-child)::after {
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content: "•";
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position: absolute;
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right: -4px;
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color: #999;
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}
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.footer a:hover {
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color: var(--primary-color);
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text-decoration: underline;
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}
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.flex-container {
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display: flex;
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flex-wrap: wrap;
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gap: 8px;
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margin-bottom: 8px;
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}
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.flex-group {
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display: flex;
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flex-wrap: wrap;
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gap: 8px;
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align-items: center;
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}
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.flex-group.right {
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margin-left: auto;
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}
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.debug {
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display: none !important;
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}
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.log-container {
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width: 100%;
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min-height: 100px;
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max-height: 300px;
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margin: 0;
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padding: 10px 12px;
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background: linear-gradient(180deg, rgba(14, 26, 48, 0.92), rgba(20, 36, 63, 0.96));
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color: #d9ecff;
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overflow-y: auto;
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||||
overflow-x: hidden;
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font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
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box-sizing: border-box;
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word-break: break-word;
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border-radius: 16px;
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border: 1px solid rgba(77, 102, 150, 0.4);
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box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
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}
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.log-container .log-line {
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padding: 2px 0;
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}
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|
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.log-container .time,
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.log-container .action {
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display: inline-block;
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white-space: nowrap;
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}
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|
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.log-container .time {
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color: #7bdcff;
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margin-right: 0.5em;
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}
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|
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.log-container .action {
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color: #95aecd;
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margin-right: 0.5em;
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}
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|
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.template-panel {
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border: 1px solid rgba(121, 140, 176, 0.22);
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border-radius: 8px;
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background: rgba(255, 255, 255, 0.78);
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||||
padding: 12px;
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||||
margin-bottom: 10px;
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||||
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
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}
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||||
|
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.panel-tabs {
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display: flex;
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flex-wrap: wrap;
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||||
gap: 8px;
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||||
margin-bottom: 10px;
|
||||
}
|
||||
|
||||
.panel-tab {
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color: var(--muted-text);
|
||||
background: rgba(255, 255, 255, 0.7);
|
||||
border-color: rgba(121, 140, 176, 0.18);
|
||||
}
|
||||
|
||||
.panel-tab:hover {
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||||
background: rgba(255, 255, 255, 0.96);
|
||||
border-color: rgba(121, 140, 176, 0.26);
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||||
}
|
||||
|
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.panel-tab.active {
|
||||
color: #fff;
|
||||
background: linear-gradient(135deg, var(--primary-color), #1ec8ff);
|
||||
border-color: transparent;
|
||||
box-shadow: 0 12px 24px rgba(15, 98, 254, 0.2);
|
||||
}
|
||||
|
||||
.panel-tab-content {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.panel-tab-content.active {
|
||||
display: block;
|
||||
}
|
||||
|
||||
.template-header {
|
||||
display: flex;
|
||||
flex-wrap: wrap;
|
||||
gap: 8px;
|
||||
align-items: baseline;
|
||||
margin-bottom: 10px;
|
||||
}
|
||||
|
||||
.template-header span {
|
||||
color: var(--muted-text);
|
||||
font-size: 0.9rem;
|
||||
}
|
||||
|
||||
.template-mode-panel {
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
.template-list {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.template-item {
|
||||
display: flex;
|
||||
flex-wrap: wrap;
|
||||
gap: 8px;
|
||||
align-items: center;
|
||||
padding: 8px;
|
||||
border: 1px solid rgba(121, 140, 176, 0.18);
|
||||
border-radius: 6px;
|
||||
background: rgba(248, 251, 255, 0.86);
|
||||
}
|
||||
|
||||
.template-item.dragging {
|
||||
opacity: 0.55;
|
||||
}
|
||||
|
||||
.template-item.drag-over {
|
||||
border-color: rgba(15, 98, 254, 0.5);
|
||||
box-shadow: inset 0 0 0 1px rgba(15, 98, 254, 0.18);
|
||||
}
|
||||
|
||||
.countdown-grid-drag-handle {
|
||||
width: 34px;
|
||||
height: 34px;
|
||||
border: 1px dashed rgba(121, 140, 176, 0.4);
|
||||
border-radius: 6px;
|
||||
background: rgba(255, 255, 255, 0.92);
|
||||
color: var(--muted-text);
|
||||
cursor: grab;
|
||||
flex: 0 0 auto;
|
||||
}
|
||||
|
||||
.countdown-grid-drag-handle:active {
|
||||
cursor: grabbing;
|
||||
}
|
||||
|
||||
.template-item input[type="text"] {
|
||||
min-width: 120px;
|
||||
flex: 1 1 160px;
|
||||
}
|
||||
|
||||
.template-item input[type="date"] {
|
||||
min-width: 150px;
|
||||
}
|
||||
|
||||
.template-item input[type="number"] {
|
||||
width: 72px;
|
||||
}
|
||||
|
||||
.template-item label {
|
||||
display: inline-flex;
|
||||
align-items: center;
|
||||
gap: 4px;
|
||||
}
|
||||
|
||||
.canvas-container canvas {
|
||||
border: 1px solid rgba(37, 61, 104, 0.24);
|
||||
max-width: 100%;
|
||||
height: auto;
|
||||
display: block;
|
||||
margin: 0 auto;
|
||||
background:
|
||||
linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 249, 255, 0.98));
|
||||
border-radius: 0;
|
||||
box-shadow:
|
||||
0 25px 60px rgba(15, 35, 95, 0.18),
|
||||
inset 0 1px 0 rgba(255, 255, 255, 0.8);
|
||||
}
|
||||
|
||||
.canvas-frame {
|
||||
position: relative;
|
||||
width: fit-content;
|
||||
max-width: 100%;
|
||||
margin: 0 auto;
|
||||
}
|
||||
|
||||
.canvas-frame canvas {
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
.region-overlay {
|
||||
position: absolute;
|
||||
inset: 0;
|
||||
display: none;
|
||||
pointer-events: none;
|
||||
}
|
||||
|
||||
.region-overlay.active {
|
||||
display: block;
|
||||
}
|
||||
|
||||
.region-box {
|
||||
position: absolute;
|
||||
box-sizing: border-box;
|
||||
border: 2px solid #e53935;
|
||||
background: rgba(229, 57, 53, 0.12);
|
||||
cursor: move;
|
||||
pointer-events: auto;
|
||||
touch-action: none;
|
||||
}
|
||||
|
||||
.region-box::after {
|
||||
content: "";
|
||||
position: absolute;
|
||||
right: -6px;
|
||||
bottom: -6px;
|
||||
width: 12px;
|
||||
height: 12px;
|
||||
border: 2px solid #fff;
|
||||
background: #e53935;
|
||||
box-shadow: 0 2px 8px rgba(30, 41, 59, 0.28);
|
||||
cursor: nwse-resize;
|
||||
}
|
||||
|
||||
.region-label {
|
||||
position: absolute;
|
||||
left: -2px;
|
||||
top: -22px;
|
||||
min-width: 22px;
|
||||
padding: 2px 6px;
|
||||
border-radius: 4px 4px 0 0;
|
||||
background: #e53935;
|
||||
color: #fff;
|
||||
font-size: 12px;
|
||||
line-height: 16px;
|
||||
text-align: center;
|
||||
pointer-events: none;
|
||||
}
|
||||
|
||||
.canvas-container.crop-mode canvas {
|
||||
border: 2px dashed var(--primary-color);
|
||||
cursor: grab;
|
||||
}
|
||||
|
||||
.status-bar {
|
||||
display: none;
|
||||
font-size: 85%;
|
||||
color: var(--muted-text);
|
||||
margin-bottom: 10px;
|
||||
padding-bottom: 10px;
|
||||
border-bottom: 1px dotted rgba(121, 140, 176, 0.45);
|
||||
}
|
||||
|
||||
canvas.text-placement-mode {
|
||||
border: 2px dashed var(--primary-color) !important;
|
||||
cursor: text !important;
|
||||
}
|
||||
|
||||
.canvas-title {
|
||||
display: none;
|
||||
text-align: center;
|
||||
margin-bottom: 5px;
|
||||
color: var(--primary-color);
|
||||
}
|
||||
|
||||
.canvas-container {
|
||||
padding: 18px;
|
||||
border-radius: 0;
|
||||
background:
|
||||
linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(242, 248, 255, 0.84));
|
||||
border: 1px solid rgba(121, 140, 176, 0.18);
|
||||
box-shadow: var(--shadow-soft);
|
||||
}
|
||||
|
||||
.canvas-tools {
|
||||
margin-top: 10px;
|
||||
justify-content: center;
|
||||
}
|
||||
|
||||
.brush-tools,
|
||||
.text-tools,
|
||||
.crop-tools {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.markdown-text-input-group {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 4px;
|
||||
min-width: 240px;
|
||||
flex: 1 1 280px;
|
||||
}
|
||||
|
||||
#text-input {
|
||||
width: 100%;
|
||||
min-height: 110px;
|
||||
resize: vertical;
|
||||
font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
|
||||
}
|
||||
|
||||
.markdown-text-hint {
|
||||
color: var(--muted-text);
|
||||
font-size: 0.82rem;
|
||||
line-height: 1.4;
|
||||
}
|
||||
|
||||
.canvas-container.brush-mode .brush-tools,
|
||||
.canvas-container.text-mode .brush-tools,
|
||||
.canvas-container.eraser-mode .brush-tools,
|
||||
.canvas-container.text-mode .text-tools,
|
||||
.canvas-container.crop-mode .crop-tools {
|
||||
display: flex;
|
||||
}
|
||||
|
||||
.canvas-container.crop-mode .tool-buttons,
|
||||
.canvas-container.crop-mode .brush-tools,
|
||||
.canvas-container.crop-mode .text-tools {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.tool-button {
|
||||
width: 36px;
|
||||
height: 36px;
|
||||
font-size: 1.2rem;
|
||||
display: inline-flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
margin-right: 5px;
|
||||
background: rgba(255, 255, 255, 0.86);
|
||||
border: 1px solid rgba(121, 140, 176, 0.22);
|
||||
border-radius: 4px;
|
||||
padding: 0;
|
||||
cursor: pointer;
|
||||
transition: all 0.2s ease;
|
||||
box-shadow: 0 8px 18px rgba(16, 32, 58, 0.08);
|
||||
}
|
||||
|
||||
.tool-button:hover {
|
||||
background: #fff;
|
||||
border-color: rgba(121, 140, 176, 0.3);
|
||||
}
|
||||
|
||||
.tool-button.active {
|
||||
background: linear-gradient(135deg, var(--primary-color), #1ec8ff);
|
||||
color: white;
|
||||
border-color: transparent;
|
||||
box-shadow: 0 12px 24px rgba(15, 98, 254, 0.24);
|
||||
}
|
||||
|
||||
.tool-button.hide {
|
||||
display: none;
|
||||
}
|
||||
|
||||
@media (max-width: 768px) {
|
||||
.flex-container {
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
.panel-tabs {
|
||||
flex-direction: row;
|
||||
}
|
||||
|
||||
.panel-tab {
|
||||
flex: 1 1 0;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
.flex-container.options .flex-group label {
|
||||
min-width: 80px;
|
||||
}
|
||||
|
||||
.flex-group.right {
|
||||
margin-left: 0;
|
||||
}
|
||||
|
||||
.canvas-tools.flex-container {
|
||||
flex-direction: row;
|
||||
flex-wrap: wrap;
|
||||
justify-content: center;
|
||||
}
|
||||
|
||||
.canvas-tools .flex-group {
|
||||
justify-content: center;
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
.log-container {
|
||||
height: 150px;
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
fieldset {
|
||||
padding: 8px;
|
||||
}
|
||||
|
||||
button {
|
||||
width: auto;
|
||||
}
|
||||
|
||||
input[type=text],
|
||||
textarea,
|
||||
input[type=number],
|
||||
select {
|
||||
max-width: 100%;
|
||||
margin-bottom: 5px;
|
||||
}
|
||||
}
|
||||
|
||||
body.dark-mode .debug {
|
||||
display: flex !important;
|
||||
}
|
||||
|
||||
body.dark-mode,
|
||||
body.dark-mode .main {
|
||||
background-color: var(--dark-bg);
|
||||
color: var(--dark-text);
|
||||
}
|
||||
|
||||
body.dark-mode {
|
||||
background:
|
||||
radial-gradient(circle at top left, rgba(15, 98, 254, 0.16), transparent 32%),
|
||||
radial-gradient(circle at bottom right, rgba(34, 211, 238, 0.14), transparent 30%),
|
||||
linear-gradient(135deg, #0b1220 0%, #10192d 50%, #0c1220 100%);
|
||||
}
|
||||
|
||||
body.dark-mode fieldset {
|
||||
background-color: var(--dark-fieldset-bg);
|
||||
box-shadow: 0 .5rem 0.5rem rgba(0, 0, 0, 0.5);
|
||||
border: 1px solid rgba(77, 102, 150, 0.24);
|
||||
}
|
||||
|
||||
body.dark-mode h3 {
|
||||
border-bottom: 1px solid var(--dark-border);
|
||||
color: var(--dark-text);
|
||||
text-shadow: 0 12px 30px rgba(34, 211, 238, 0.12);
|
||||
}
|
||||
|
||||
body.dark-mode code {
|
||||
background: var(--dark-code-bg);
|
||||
color: #ff9800;
|
||||
}
|
||||
|
||||
body.dark-mode input[type=text],
|
||||
body.dark-mode textarea,
|
||||
body.dark-mode input[type=date],
|
||||
body.dark-mode input[type=number],
|
||||
body.dark-mode select {
|
||||
background-color: var(--dark-input-bg);
|
||||
color: var(--dark-input-text);
|
||||
border-color: var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode input[type=text]:disabled,
|
||||
body.dark-mode textarea:disabled,
|
||||
body.dark-mode input[type=date]:disabled,
|
||||
body.dark-mode input[type=number]:disabled,
|
||||
body.dark-mode select:disabled {
|
||||
background-color: #1a1a1a;
|
||||
color: #666;
|
||||
border-color: #2a2a2a;
|
||||
}
|
||||
|
||||
body.dark-mode input[type=file] {
|
||||
color: var(--dark-input-text);
|
||||
background-color: transparent;
|
||||
border-color: var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode input[type=file]::file-selector-button {
|
||||
background-color: var(--dark-fieldset-bg);
|
||||
color: var(--dark-input-text);
|
||||
border-color: var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode input[type=file]::file-selector-button:hover {
|
||||
background-color: #333;
|
||||
border-color: #444;
|
||||
}
|
||||
|
||||
body.dark-mode .log-container {
|
||||
background: var(--dark-log-bg);
|
||||
border: 1px solid var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode .log-container .time {
|
||||
color: #8bc34a;
|
||||
}
|
||||
|
||||
body.dark-mode .log-container .action {
|
||||
color: #03a9f4;
|
||||
}
|
||||
|
||||
body.dark-mode fieldset legend {
|
||||
color: #64b5f6;
|
||||
}
|
||||
|
||||
body.dark-mode .footer .links a:not(:last-child)::after {
|
||||
color: #666;
|
||||
}
|
||||
|
||||
body.dark-mode .footer {
|
||||
color: #999;
|
||||
}
|
||||
|
||||
body.dark-mode .footer a {
|
||||
color: #999;
|
||||
}
|
||||
|
||||
body.dark-mode .footer a:hover {
|
||||
color: #64b5f6;
|
||||
}
|
||||
|
||||
body.dark-mode .tool-button {
|
||||
background-color: var(--dark-input-bg);
|
||||
border-color: var(--dark-border);
|
||||
color: var(--dark-text);
|
||||
}
|
||||
|
||||
body.dark-mode .tool-button:hover {
|
||||
background-color: #3a3a3a;
|
||||
border-color: #444;
|
||||
}
|
||||
|
||||
body.dark-mode .tool-button.active {
|
||||
background-color: var(--primary-color);
|
||||
color: white;
|
||||
border-color: var(--primary-hover);
|
||||
}
|
||||
|
||||
body.dark-mode .template-panel,
|
||||
body.dark-mode .template-item {
|
||||
background-color: var(--dark-fieldset-bg);
|
||||
border-color: var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode .canvas-container {
|
||||
background: linear-gradient(180deg, rgba(23, 31, 49, 0.92), rgba(17, 24, 39, 0.95));
|
||||
border-color: rgba(77, 102, 150, 0.24);
|
||||
}
|
||||
|
||||
body.dark-mode .canvas-container canvas {
|
||||
background: #f8fbff;
|
||||
}
|
||||
|
||||
body.dark-mode .panel-tab {
|
||||
color: var(--dark-text);
|
||||
background-color: #2a2a2a;
|
||||
border-color: var(--dark-border);
|
||||
}
|
||||
|
||||
body.dark-mode .panel-tab:hover {
|
||||
background-color: #333;
|
||||
border-color: #444;
|
||||
}
|
||||
|
||||
body.dark-mode .panel-tab.active {
|
||||
background-color: var(--primary-color);
|
||||
border-color: var(--primary-hover);
|
||||
color: #fff;
|
||||
}
|
||||
|
||||
body.dark-mode .template-header span {
|
||||
color: #aaa;
|
||||
}
|
||||
|
||||
@media (prefers-reduced-motion: no-preference) {
|
||||
fieldset,
|
||||
.canvas-container {
|
||||
animation: floatIn 0.6s ease both;
|
||||
}
|
||||
|
||||
fieldset:nth-of-type(2) {
|
||||
animation-delay: 0.06s;
|
||||
}
|
||||
|
||||
fieldset:nth-of-type(3) {
|
||||
animation-delay: 0.12s;
|
||||
}
|
||||
}
|
||||
|
||||
@keyframes floatIn {
|
||||
from {
|
||||
opacity: 0;
|
||||
transform: translateY(16px);
|
||||
}
|
||||
|
||||
to {
|
||||
opacity: 1;
|
||||
transform: translateY(0);
|
||||
}
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 2.8 KiB |
@@ -0,0 +1,358 @@
|
||||
<!doctype html>
|
||||
<html lang="en">
|
||||
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||||
<title>墨水屏日历</title>
|
||||
<link rel="shortcut icon" type="image/png" href="favicon.png">
|
||||
<link rel="stylesheet" href="css/main.css?v=20251109">
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<div class="main">
|
||||
<h3>墨水屏日历</h3>
|
||||
<fieldset>
|
||||
<legend>蓝牙连接</legend>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<button id="connectbutton" type="button" class="primary" onclick="preConnect()">连接</button>
|
||||
<button id="reconnectbutton" type="button" class="secondary" onclick="reConnect()">重连</button>
|
||||
<button type="button" class="secondary" onclick="clearLog()">清空日志</button>
|
||||
</div>
|
||||
<div class="flex-group right debug">
|
||||
<label for="epddriver">驱动</label>
|
||||
<select id="epddriver" onchange="updateDitcherOptions()">
|
||||
<option value="03" data-color="threeColor" data-size="4.2_400_300">4.2寸 (三色, UC8176)</option>
|
||||
</select>
|
||||
</div>
|
||||
<div class="flex-group debug">
|
||||
<label for="epdpins">引脚</label>
|
||||
<input id="epdpins" type="text" value="">
|
||||
<button id="setDriverbutton" type="button" class="primary" onclick="setDriver()">确定</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="log-container" id="log"></div>
|
||||
</fieldset>
|
||||
<fieldset>
|
||||
<legend>设备控制</legend>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<button id="calendarmodebutton" type="button" class="primary" onclick="syncTime(1)">日历模式</button>
|
||||
<button id="clearscreenbutton" type="button" class="secondary" onclick="clearScreen()">清除屏幕</button>
|
||||
</div>
|
||||
<div class="flex-group right debug">
|
||||
<input type="text" id="cmdTXT" value="">
|
||||
<button id="sendcmdbutton" type="button" class="primary" onclick="sendcmd()">发送命令</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-panel">
|
||||
<div class="template-header">
|
||||
<strong>重要日期</strong>
|
||||
<span>在月历上标注自定义日期</span>
|
||||
</div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<input type="date" id="calendar-mark-date">
|
||||
<button type="button" class="secondary" id="calendar-mark-add">添加标注</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-list" id="calendar-mark-items"></div>
|
||||
</div>
|
||||
<div class="panel-tabs" id="image-source-tabs">
|
||||
<button type="button" class="panel-tab active" data-tab-target="image-upload-panel">图片上传</button>
|
||||
<button type="button" class="panel-tab" data-tab-target="countdown-template-panel">倒计时模板</button>
|
||||
<button type="button" class="panel-tab" data-tab-target="todo-template-panel">待办任务</button>
|
||||
</div>
|
||||
<div class="panel-tab-content active" id="image-upload-panel">
|
||||
<div class="flex-container">
|
||||
<input type="file" id="imageFile" accept=".png,.jpg,.bmp,.webp,.jpeg" onchange="updateImage()">
|
||||
</div>
|
||||
</div>
|
||||
<div class="panel-tab-content" id="countdown-template-panel">
|
||||
<div class="template-panel">
|
||||
<div class="template-header">
|
||||
<strong>倒计时模板</strong>
|
||||
<span>将 `countdown.html` 和 `countdown_s.html` 的核心样式渲染到当前画布</span>
|
||||
</div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<label for="countdown-template-mode">模式:</label>
|
||||
<select id="countdown-template-mode">
|
||||
<option value="single">单个倒计时</option>
|
||||
<option value="grid">网格倒计时</option>
|
||||
</select>
|
||||
<button type="button" class="secondary" id="apply-countdown-template">渲染到画布</button>
|
||||
<button type="button" class="primary" id="countdownmodebutton" onclick="activateCountdownMode()">设备自动倒计时</button>
|
||||
</div>
|
||||
<div class="flex-group right">
|
||||
<input type="file" id="countdown-import-file" accept=".json,application/json" hidden>
|
||||
<button type="button" class="secondary" id="import-countdown-template">导入</button>
|
||||
<button type="button" class="secondary" id="export-countdown-template">导出</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-mode-panel" id="countdown-single-panel">
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<label for="countdown-single-motto">标语:</label>
|
||||
<input type="text" id="countdown-single-motto" value="保持专注">
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<label for="countdown-single-label">事件:</label>
|
||||
<input type="text" id="countdown-single-label" value="目标日">
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<label for="countdown-single-date">日期:</label>
|
||||
<input type="date" id="countdown-single-date">
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-mode-panel" id="countdown-grid-panel">
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<label for="countdown-grid-title">标题:</label>
|
||||
<input type="text" id="countdown-grid-title" value="倒计时看板">
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<button type="button" class="secondary" id="countdown-grid-add">添加项目</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-list" id="countdown-grid-items"></div>
|
||||
</div>
|
||||
<div class="template-panel">
|
||||
<div class="template-header">
|
||||
<strong>数字覆盖区域</strong>
|
||||
<span>上传自动模板前可手动微调 x/y/w/h</span>
|
||||
</div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<button type="button" class="secondary" id="countdown-regions-refresh">自动生成区域</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-list" id="countdown-region-items"></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="panel-tab-content" id="todo-template-panel">
|
||||
<div class="template-panel">
|
||||
<div class="template-header">
|
||||
<strong>待办任务</strong>
|
||||
<span>创建简洁的待办清单并渲染到当前画布</span>
|
||||
</div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<label for="todo-template-title">标题:</label>
|
||||
<input type="text" id="todo-template-title" value="今日重点">
|
||||
<button type="button" class="secondary" id="apply-todo-template">渲染到画布</button>
|
||||
</div>
|
||||
<div class="flex-group right">
|
||||
<input type="file" id="todo-import-file" accept=".json,application/json" hidden>
|
||||
<button type="button" class="secondary" id="import-todo-template">导入</button>
|
||||
<button type="button" class="secondary" id="export-todo-template">导出</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<label for="todo-template-note">备注:</label>
|
||||
<input type="text" id="todo-template-note" value="一次做好一件事">
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<button type="button" class="secondary" id="todo-list-add">添加任务</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="template-list" id="todo-list-items"></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="flex-container options">
|
||||
<div class="flex-group debug">
|
||||
<label for="canvasSize">画布尺寸:</label>
|
||||
<select id="canvasSize" onchange="updateCanvasSize()">
|
||||
<option value="1.54_152_152">1.54 (152x152)</option>
|
||||
<option value="1.54_200_200">1.54 (200x200)</option>
|
||||
<option value="2.13_104_212">2.13 (104x212)</option>
|
||||
<option value="2.13_122_250">2.13 (122x250)</option>
|
||||
<option value="2.66_152_296">2.66 (152x296)</option>
|
||||
<option value="2.66_184_360">2.66 (184x360)</option>
|
||||
<option value="2.9_128_296">2.9 (128x296)</option>
|
||||
<option value="2.9_168_384">2.9 (168x384)</option>
|
||||
<option value="3.5_184_384">3.5 (184x384)</option>
|
||||
<option value="3.5_360_600">3.5 (360x600)</option>
|
||||
<option value="3.7_240_416">3.7 (240x416)</option>
|
||||
<option value="3.7_280_480">3.7 (280x480)</option>
|
||||
<option value="3.97_800_480">3.97 (800x480)</option>
|
||||
<option value="3.98_768_552">3.98 (768x552)</option>
|
||||
<option value="4.2_400_300" selected>4.2 (400x300)</option>
|
||||
<option value="5.79_792_272">5.79 (792x272)</option>
|
||||
<option value="5.83_600_448">5.83 (600x448)</option>
|
||||
<option value="5.83_648_480">5.83 (648x480)</option>
|
||||
<option value="7.5_640_384">7.5 (640x384)</option>
|
||||
<option value="7.5_800_480">7.5 (800x480)</option>
|
||||
<option value="7.5_880_528">7.5 (880x528)</option>
|
||||
<option value="10.2_960_640">10.2 (960x640)</option>
|
||||
<option value="10.85_1360_480">10.85 (1360x480)</option>
|
||||
<option value="11.6_960_640">11.6 (960x640)</option>
|
||||
<option value="4.0E6_600_400">4.0E6 (600x400)</option>
|
||||
<option value="7.3E6_800_480">7.3E6 (800x480)</option>
|
||||
</select>
|
||||
</div>
|
||||
<div class="flex-group debug">
|
||||
<label for="ditherMode">颜色模式:</label>
|
||||
<select id="ditherMode" onchange="applyDither()">
|
||||
<option value="blackWhiteColor">双色(黑白)</option>
|
||||
<option value="threeColor">三色(黑白红)</option>
|
||||
<option value="fourColor">四色(黑白红黄)</option>
|
||||
<option value="sixColor">六色(黑白红黄蓝绿)</option>
|
||||
</select>
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<label for="ditherAlg">抖动算法:</label>
|
||||
<select id="ditherAlg" onchange="applyDither()">
|
||||
<option value="floydSteinberg">Floyd-Steinberg</option>
|
||||
<option value="atkinson">Atkinson</option>
|
||||
<option value="bayer">Bayer</option>
|
||||
<option value="stucki">Stucki</option>
|
||||
<option value="jarvis">Jarvis-Judice-Ninke</option>
|
||||
<option value="none">无抖动</option>
|
||||
</select>
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<label for="ditherStrength">抖动强度:</label>
|
||||
<input type="range" min="0" max="5" step="0.1" value="1.0" id="ditherStrength">
|
||||
<label id="ditherStrengthValue">1.0</label>
|
||||
</div>
|
||||
<div class="flex-group">
|
||||
<label for="ditherContrast">对比度:</label>
|
||||
<input type="range" min="0.5" max="2" step="0.1" value="1.2" id="ditherContrast">
|
||||
<label id="ditherContrastValue">1.2</label>
|
||||
</div>
|
||||
</div>
|
||||
<div class="flex-container options">
|
||||
<div class="flex-group debug">
|
||||
<label for="mtusize">MTU:</label>
|
||||
<input type="number" id="mtusize" value="20" min="0" max="255">
|
||||
<label for="interleavedcount">确认间隔:</label>
|
||||
<input type="number" id="interleavedcount" value="50" min="0" max="500">
|
||||
</div>
|
||||
</div>
|
||||
<div class="status-bar"><b>状态：</b><span id="status"></span></div>
|
||||
<div class="flex-container">
|
||||
<div class="flex-group">
|
||||
<button type="button" class="secondary debug" onclick="rotateCanvas()">旋转画布</button>
|
||||
<button type="button" class="secondary" onclick="clearCanvas()">清除画布</button>
|
||||
<button type="button" class="secondary debug" onclick="downloadDataArray()">下载数组</button>
|
||||
<button id="sendimgbutton" type="button" class="primary" onclick="sendimg()">发送图片</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="canvas-container">
|
||||
<div class="canvas-title"></div>
|
||||
<div class="canvas-frame">
|
||||
<canvas id="canvas" width="400" height="300"></canvas>
|
||||
<div id="countdown-region-overlay" class="region-overlay" aria-hidden="true"></div>
|
||||
</div>
|
||||
<div class="flex-container canvas-tools">
|
||||
<div class="flex-group tool-buttons">
|
||||
<button id="brush-mode" title="画笔" class="tool-button">✏️</button>
|
||||
<button id="eraser-mode" title="橡皮擦" class="tool-button">🧽</button>
|
||||
<button id="text-mode" title="添加文字" class="tool-button">T</button>
|
||||
<button id="undo-btn" title="撤销 (Ctrl+Z)" class="tool-button hide">↶</button>
|
||||
<button id="redo-btn" title="重做 (Ctrl+Y)" class="tool-button hide">↷</button>
|
||||
</div>
|
||||
</div>
|
||||
<div class="flex-container canvas-tools">
|
||||
<div class="flex-group brush-tools">
|
||||
<label for="brush-color">颜色:</label>
|
||||
<select id="brush-color">
|
||||
<option value="#000000">黑色</option>
|
||||
<option value="#FF0000">红色</option>
|
||||
<option value="#FFFF00">黄色</option>
|
||||
<option value="#00FF00">绿色</option>
|
||||
<option value="#0000FF">蓝色</option>
|
||||
<option value="#FFFFFF">白色</option>
|
||||
</select>
|
||||
<label for="brush-size">粗细:</label>
|
||||
<input type="number" id="brush-size" value="2" min="1" max="100">
|
||||
</div>
|
||||
</div>
|
||||
<div class="flex-container canvas-tools">
|
||||
<div class="flex-group text-tools">
|
||||
<label for="font-family">字体:</label>
|
||||
<select id="font-family">
|
||||
<option value="Arial">Arial</option>
|
||||
<option value="sans-serif">Sans-serif</option>
|
||||
<option value="monospace">Monospace</option>
|
||||
<option value="SimSun">宋体</option>
|
||||
<option value="SimHei">黑体</option>
|
||||
<option value="Microsoft Yahei">微软雅黑</option>
|
||||
<option value="Microsoft JhengHei">微软正黑体</option>
|
||||
<option value="KaiTi">楷体</option>
|
||||
<option value="NSimSun">新宋体</option>
|
||||
<option value="FangSong">仿宋</option>
|
||||
<option value="YouYuan">幼圆</option>
|
||||
<option value="LiSu">隶书</option>
|
||||
<option value="STHeiti">华文黑体</option>
|
||||
<option value="STXihei">华文细黑</option>
|
||||
<option value="STKaiti">华文楷体</option>
|
||||
<option value="STSong">华文宋体</option>
|
||||
<option value="STFangsong">华文仿宋</option>
|
||||
<option value="STZhongsong">华文中宋</option>
|
||||
<option value="STHupo">华文琥珀</option>
|
||||
<option value="STXinwei">华文新魏</option>
|
||||
<option value="STLiti">华文隶书</option>
|
||||
<option value="STXingkai">华文行楷</option>
|
||||
<option value="FZShuTi">方正舒体</option>
|
||||
<option value="FZYaoti">方正姚体</option>
|
||||
<option value="PingFang SC">苹方</option>
|
||||
<option value="Source Han Sans CN">思源黑体</option>
|
||||
<option value="Source Han Serif SC">思源宋体</option>
|
||||
<option value="WenQuanYi Micro Hei">文泉驿微米黑</option>
|
||||
</optgroup>
|
||||
</select>
|
||||
<label for="font-size">大小:</label>
|
||||
<input type="number" id="font-size" value="16" min="1" max="100">
|
||||
</div>
|
||||
<div class="flex-group text-tools">
|
||||
<div class="markdown-text-input-group">
|
||||
<textarea id="text-input" rows="6" placeholder="输入 Markdown 文本，例如： # 标题 - 列表项 **加粗** 和 *斜体* `代码`"></textarea>
|
||||
<div class="markdown-text-hint">支持标题、列表、引用、粗体、斜体、删除线和行内代码</div>
|
||||
</div>
|
||||
<button id="text-bold" title="粗体">B</button>
|
||||
<button id="text-italic" title="斜体">I</button>
|
||||
<button id="add-text-btn" class="primary">添加文字</button>
|
||||
</div>
|
||||
<div class="flex-group crop-tools">
|
||||
<button id="crop-zoom-in" title="放大" class="secondary">+</button>
|
||||
<button id="crop-zoom-out" title="缩小" class="secondary">-</button>
|
||||
<button id="crop-move-left" title="左移">⇦</button>
|
||||
<button id="crop-move-up" title="上移">⇧</button>
|
||||
<button id="crop-move-down" title="下移">⇩</button>
|
||||
<button id="crop-move-right" title="右移">⇨</button>
|
||||
<button class="primary" onclick="applyDither()">完成</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</fieldset>
|
||||
<div class="footer">
|
||||
<span class="copy">© 2025 tsl0922.</span>
|
||||
<span class="links">
|
||||
<a href="https://github.com/tsl0922/EPD-nRF5">Github</a>
|
||||
<a href="?debug=true" id="debug-toggle">开发模式</a>
|
||||
</span>
|
||||
</div>
|
||||
</div>
|
||||
<script type="text/javascript" src="js/dithering.js?v=20260504n"></script>
|
||||
<script type="text/javascript" src="js/paint.js?v=20260504n"></script>
|
||||
<script type="text/javascript" src="js/crop.js?v=20260504n"></script>
|
||||
<script type="text/javascript" src="js/main.js?v=20260504n"></script>
|
||||
<script src="https://cdn.jsdmirror.cn/gh/bishshi/wechat-detect@main/wechat-detect.js"></script>
|
||||
<script>
|
||||
var _hmt = _hmt || [];
|
||||
(function () {
|
||||
var hm = document.createElement("script");
|
||||
hm.src = "https://hm.baidu.com/hm.js?c5949ebea1f35f725f7b05fcce462b61";
|
||||
var s = document.getElementsByTagName("script")[0];
|
||||
s.parentNode.insertBefore(hm, s);
|
||||
})();
|
||||
</script>
|
||||
</body>
|
||||
|
||||
</html>
|
||||
@@ -0,0 +1,219 @@
|
||||
class CropManager {
|
||||
constructor(canvas, ctx) {
|
||||
this.canvas = canvas;
|
||||
this.ctx = ctx;
|
||||
this.backgroundZoom = 1;
|
||||
this.backgroundPanX = 0;
|
||||
this.backgroundPanY = 0;
|
||||
this.isPanning = false;
|
||||
this.lastPanX = 0;
|
||||
this.lastPanY = 0;
|
||||
this.lastTouchDistance = 0;
|
||||
|
||||
// Bind event handlers
|
||||
this.handleBackgroundZoom = this.handleBackgroundZoom.bind(this);
|
||||
this.handleBackgroundPanStart = this.handleBackgroundPanStart.bind(this);
|
||||
this.handleBackgroundPan = this.handleBackgroundPan.bind(this);
|
||||
this.handleBackgroundPanEnd = this.handleBackgroundPanEnd.bind(this);
|
||||
this.handleTouchStart = this.handleTouchStart.bind(this);
|
||||
this.handleTouchMove = this.handleTouchMove.bind(this);
|
||||
}
|
||||
|
||||
resetStates() {
|
||||
this.backgroundZoom = 1;
|
||||
this.backgroundPanX = 0;
|
||||
this.backgroundPanY = 0;
|
||||
this.isPanning = false;
|
||||
this.lastPanX = 0;
|
||||
this.lastPanY = 0;
|
||||
this.lastTouchDistance = 0;
|
||||
}
|
||||
|
||||
isCropMode() {
|
||||
return this.canvas.parentNode.classList.contains('crop-mode');
|
||||
}
|
||||
|
||||
exitCropMode() {
|
||||
this.canvas.parentNode.classList.remove('crop-mode');
|
||||
setCanvasTitle("");
|
||||
|
||||
this.canvas.removeEventListener('wheel', this.handleBackgroundZoom);
|
||||
this.canvas.removeEventListener('mousedown', this.handleBackgroundPanStart);
|
||||
this.canvas.removeEventListener('mousemove', this.handleBackgroundPan);
|
||||
this.canvas.removeEventListener('mouseup', this.handleBackgroundPanEnd);
|
||||
this.canvas.removeEventListener('mouseleave', this.handleBackgroundPanEnd);
|
||||
this.canvas.removeEventListener('touchstart', this.handleTouchStart);
|
||||
this.canvas.removeEventListener('touchmove', this.handleTouchMove);
|
||||
this.canvas.removeEventListener('touchend', this.handleBackgroundPanEnd);
|
||||
this.canvas.removeEventListener('touchcancel', this.handleBackgroundPanEnd);
|
||||
}
|
||||
|
||||
initializeCrop() {
|
||||
const imageFile = document.getElementById('imageFile');
|
||||
if (imageFile.files.length == 0) {
|
||||
fillCanvas('white');
|
||||
return;
|
||||
}
|
||||
|
||||
this.exitCropMode();
|
||||
this.resetStates();
|
||||
|
||||
this.canvas.style.backgroundImage = `url(${URL.createObjectURL(imageFile.files[0])})`;
|
||||
this.canvas.style.backgroundSize = '100%';
|
||||
this.canvas.style.backgroundPosition = '';
|
||||
this.canvas.style.backgroundRepeat = 'no-repeat';
|
||||
|
||||
// add event listeners for zoom and pan
|
||||
this.canvas.addEventListener('wheel', this.handleBackgroundZoom);
|
||||
this.canvas.addEventListener('mousedown', this.handleBackgroundPanStart);
|
||||
this.canvas.addEventListener('mousemove', this.handleBackgroundPan);
|
||||
this.canvas.addEventListener('mouseup', this.handleBackgroundPanEnd);
|
||||
this.canvas.addEventListener('mouseleave', this.handleBackgroundPanEnd);
|
||||
|
||||
// Touch events for mobile devices
|
||||
this.canvas.addEventListener('touchstart', this.handleTouchStart);
|
||||
this.canvas.addEventListener('touchmove', this.handleTouchMove);
|
||||
this.canvas.addEventListener('touchend', this.handleBackgroundPanEnd);
|
||||
this.canvas.addEventListener('touchcancel', this.handleBackgroundPanEnd);
|
||||
|
||||
// Make the canvas transparent
|
||||
this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
|
||||
|
||||
setCanvasTitle("裁剪模式: 可用鼠标滚轮或双指触摸缩放图片");
|
||||
this.canvas.parentNode.classList.add('crop-mode');
|
||||
}
|
||||
|
||||
finishCrop(callback) {
|
||||
const imageFile = document.getElementById('imageFile');
|
||||
if (imageFile.files.length == 0) return;
|
||||
|
||||
const image = new Image();
|
||||
image.onload = () => {
|
||||
URL.revokeObjectURL(image.src);
|
||||
|
||||
const fieldsetRect = this.canvas.getBoundingClientRect();
|
||||
const scale = (image.width / fieldsetRect.width) / this.backgroundZoom;
|
||||
|
||||
const sx = -this.backgroundPanX * scale;
|
||||
const sy = -this.backgroundPanY * scale;
|
||||
const sWidth = fieldsetRect.width * scale;
|
||||
const sHeight = fieldsetRect.height * scale;
|
||||
|
||||
fillCanvas('white');
|
||||
this.ctx.drawImage(image, sx, sy, sWidth, sHeight, 0, 0, this.canvas.width, this.canvas.height);
|
||||
|
||||
this.exitCropMode();
|
||||
if (callback) callback();
|
||||
};
|
||||
image.src = URL.createObjectURL(imageFile.files[0]);
|
||||
}
|
||||
|
||||
handleTouchStart(e) {
|
||||
e.preventDefault();
|
||||
if (e.touches.length === 1) {
|
||||
this.handleBackgroundPanStart(e.touches[0]);
|
||||
} else if (e.touches.length === 2) {
|
||||
this.isPanning = false; // Stop panning when zooming
|
||||
this.lastTouchDistance = this.getTouchDistance(e.touches);
|
||||
}
|
||||
}
|
||||
|
||||
handleTouchMove(e) {
|
||||
e.preventDefault();
|
||||
if (this.isPanning && e.touches.length === 1) {
|
||||
this.handleBackgroundPan(e.touches[0]);
|
||||
} else if (e.touches.length === 2) {
|
||||
const newDist = this.getTouchDistance(e.touches);
|
||||
if (this.lastTouchDistance > 0) {
|
||||
const zoomFactor = newDist / this.lastTouchDistance;
|
||||
this.backgroundZoom *= zoomFactor;
|
||||
this.backgroundZoom = Math.max(0.1, Math.min(5, this.backgroundZoom)); // Limit zoom range
|
||||
this.updateBackgroundTransform();
|
||||
}
|
||||
this.lastTouchDistance = newDist;
|
||||
}
|
||||
}
|
||||
|
||||
handleBackgroundZoom(e) {
|
||||
e.preventDefault();
|
||||
const zoomFactor = e.deltaY > 0 ? 0.9 : 1.1;
|
||||
this.backgroundZoom *= zoomFactor;
|
||||
this.backgroundZoom = Math.max(0.1, Math.min(5, this.backgroundZoom)); // Limit zoom range
|
||||
this.updateBackgroundTransform();
|
||||
}
|
||||
|
||||
handleBackgroundPanStart(e) {
|
||||
this.isPanning = true;
|
||||
this.lastPanX = e.clientX;
|
||||
this.lastPanY = e.clientY;
|
||||
this.canvas.style.cursor = 'grabbing';
|
||||
}
|
||||
|
||||
handleBackgroundPan(e) {
|
||||
if (this.isPanning) {
|
||||
const deltaX = e.clientX - this.lastPanX;
|
||||
const deltaY = e.clientY - this.lastPanY;
|
||||
this.backgroundPanX += deltaX;
|
||||
this.backgroundPanY += deltaY;
|
||||
this.lastPanX = e.clientX;
|
||||
this.lastPanY = e.clientY;
|
||||
this.updateBackgroundTransform();
|
||||
}
|
||||
}
|
||||
|
||||
handleBackgroundPanEnd() {
|
||||
this.isPanning = false;
|
||||
this.lastTouchDistance = 0; // Reset touch distance
|
||||
this.canvas.style.cursor = 'grab';
|
||||
}
|
||||
|
||||
updateBackgroundTransform() {
|
||||
this.canvas.style.backgroundSize = `${100 * this.backgroundZoom}%`;
|
||||
this.canvas.style.backgroundPosition = `${this.backgroundPanX}px ${this.backgroundPanY}px`;
|
||||
}
|
||||
|
||||
getTouchDistance(touches) {
|
||||
const touch1 = touches[0];
|
||||
const touch2 = touches[1];
|
||||
return Math.sqrt(
|
||||
Math.pow(touch2.clientX - touch1.clientX, 2) +
|
||||
Math.pow(touch2.clientY - touch1.clientY, 2)
|
||||
);
|
||||
}
|
||||
|
||||
initCropTools() {
|
||||
document.getElementById('crop-zoom-in').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.handleBackgroundZoom({ preventDefault: () => { }, deltaY: -1 });
|
||||
});
|
||||
|
||||
document.getElementById('crop-zoom-out').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.handleBackgroundZoom({ preventDefault: () => { }, deltaY: 1 });
|
||||
});
|
||||
|
||||
document.getElementById('crop-move-left').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.backgroundPanX -= 10;
|
||||
this.updateBackgroundTransform();
|
||||
});
|
||||
|
||||
document.getElementById('crop-move-right').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.backgroundPanX += 10;
|
||||
this.updateBackgroundTransform();
|
||||
});
|
||||
|
||||
document.getElementById('crop-move-up').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.backgroundPanY -= 10;
|
||||
this.updateBackgroundTransform();
|
||||
});
|
||||
|
||||
document.getElementById('crop-move-down').addEventListener('click', (e) => {
|
||||
e.preventDefault();
|
||||
this.backgroundPanY += 10;
|
||||
this.updateBackgroundTransform();
|
||||
});
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,716 @@
|
||||
// Ported from: https://e-paper-display.cn/usb2epd.html
|
||||
|
||||
// 固定的六色调色板
|
||||
const rgbPalette = [
|
||||
{ name: "黑色", r: 0, g: 0, b: 0, value: 0x00 },
|
||||
{ name: "白色", r: 255, g: 255, b: 255, value: 0x01 },
|
||||
{ name: "黄色", r: 255, g: 255, b: 0, value: 0x02 },
|
||||
{ name: "红色", r: 255, g: 0, b: 0, value: 0x03 },
|
||||
{ name: "蓝色", r: 0, g: 0, b: 255, value: 0x05 },
|
||||
{ name: "绿色", r: 41, g: 204, b: 20, value: 0x06 }
|
||||
];
|
||||
|
||||
// 四色调色板
|
||||
const fourColorPalette = [
|
||||
{ name: "黑色", r: 0, g: 0, b: 0, value: 0x00 },
|
||||
{ name: "白色", r: 255, g: 255, b: 255, value: 0x01 },
|
||||
{ name: "红色", r: 255, g: 0, b: 0, value: 0x03 },
|
||||
{ name: "黄色", r: 255, g: 255, b: 0, value: 0x02 }
|
||||
];
|
||||
|
||||
// 三色调色板
|
||||
const threeColorPalette = [
|
||||
{ name: "黑色", r: 0, g: 0, b: 0, value: 0x00 },
|
||||
{ name: "白色", r: 255, g: 255, b: 255, value: 0x01 },
|
||||
{ name: "红色", r: 255, g: 0, b: 0, value: 0x02 }
|
||||
];
|
||||
|
||||
function adjustContrast(imageData, factor) {
|
||||
const data = imageData.data;
|
||||
for (let i = 0; i < data.length; i += 4) {
|
||||
data[i] = Math.min(255, Math.max(0, (data[i] - 128) * factor + 128));
|
||||
data[i + 1] = Math.min(255, Math.max(0, (data[i + 1] - 128) * factor + 128));
|
||||
data[i + 2] = Math.min(255, Math.max(0, (data[i + 2] - 128) * factor + 128));
|
||||
}
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function rgbToLab(r, g, b) {
|
||||
r = r / 255;
|
||||
g = g / 255;
|
||||
b = b / 255;
|
||||
|
||||
r = r > 0.04045 ? Math.pow((r + 0.055) / 1.055, 2.4) : r / 12.92;
|
||||
g = g > 0.04045 ? Math.pow((g + 0.055) / 1.055, 2.4) : g / 12.92;
|
||||
b = b > 0.04045 ? Math.pow((b + 0.055) / 1.055, 2.4) : b / 12.92;
|
||||
|
||||
r *= 100;
|
||||
g *= 100;
|
||||
b *= 100;
|
||||
|
||||
let x = r * 0.4124 + g * 0.3576 + b * 0.1805;
|
||||
let y = r * 0.2126 + g * 0.7152 + b * 0.0722;
|
||||
let z = r * 0.0193 + g * 0.1192 + b * 0.9505;
|
||||
|
||||
x /= 95.047;
|
||||
y /= 100.0;
|
||||
z /= 108.883;
|
||||
|
||||
x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
|
||||
y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
|
||||
z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
|
||||
|
||||
const l = (116 * y) - 16;
|
||||
const a = 500 * (x - y);
|
||||
const bLab = 200 * (y - z);
|
||||
|
||||
return { l, a, b: bLab };
|
||||
}
|
||||
|
||||
function labDistance(lab1, lab2) {
|
||||
const dl = lab1.l - lab2.l;
|
||||
const da = lab1.a - lab2.a;
|
||||
const db = lab1.b - lab2.b;
|
||||
return Math.sqrt(0.2 * dl * dl + 3 * da * da + 3 * db * db);
|
||||
}
|
||||
|
||||
function findClosestColor(r, g, b, mode) {
|
||||
let palette;
|
||||
|
||||
if (mode === 'fourColor') {
|
||||
palette = fourColorPalette;
|
||||
} else if (mode === 'threeColor') {
|
||||
palette = threeColorPalette;
|
||||
} else {
|
||||
palette = rgbPalette;
|
||||
}
|
||||
|
||||
// 蓝色特殊情况（仅限非三色、四色模式）
|
||||
if (mode !== 'fourColor' && mode !== 'threeColor' && r < 50 && g < 150 && b > 100) {
|
||||
return rgbPalette[4]; // 蓝色
|
||||
}
|
||||
|
||||
// 三色模式下优先检测红色
|
||||
if (mode === 'threeColor') {
|
||||
// 如果红色通道显著高于绿色和蓝色，且强度足够
|
||||
if (r > 120 && r > g * 1.5 && r > b * 1.5) {
|
||||
return threeColorPalette[2]; // 红色
|
||||
}
|
||||
// 否则根据亮度选择黑或白
|
||||
const luminance = 0.299 * r + 0.587 * g + 0.114 * b;
|
||||
return luminance < 128 ? threeColorPalette[0] : threeColorPalette[1]; // 黑色或白色
|
||||
}
|
||||
|
||||
const inputLab = rgbToLab(r, g, b);
|
||||
let minDistance = Infinity;
|
||||
let closestColor = palette[0];
|
||||
|
||||
for (const color of palette) {
|
||||
const colorLab = rgbToLab(color.r, color.g, color.b);
|
||||
const distance = labDistance(inputLab, colorLab);
|
||||
if (distance < minDistance) {
|
||||
minDistance = distance;
|
||||
closestColor = color;
|
||||
}
|
||||
}
|
||||
|
||||
return closestColor;
|
||||
}
|
||||
|
||||
function floydSteinbergDither(imageData, strength, mode) {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
const tempData = new Uint8ClampedArray(data);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
|
||||
const errR = (r - closest.r) * strength;
|
||||
const errG = (g - closest.g) * strength;
|
||||
const errB = (b - closest.b) * strength;
|
||||
|
||||
if (x + 1 < width) {
|
||||
const idxRight = idx + 4;
|
||||
tempData[idxRight] = Math.min(255, Math.max(0, tempData[idxRight] + errR * 7 / 16));
|
||||
tempData[idxRight + 1] = Math.min(255, Math.max(0, tempData[idxRight + 1] + errG * 7 / 16));
|
||||
tempData[idxRight + 2] = Math.min(255, Math.max(0, tempData[idxRight + 2] + errB * 7 / 16));
|
||||
}
|
||||
if (y + 1 < height) {
|
||||
if (x > 0) {
|
||||
const idxDownLeft = idx + width * 4 - 4;
|
||||
tempData[idxDownLeft] = Math.min(255, Math.max(0, tempData[idxDownLeft] + errR * 3 / 16));
|
||||
tempData[idxDownLeft + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft + 1] + errG * 3 / 16));
|
||||
tempData[idxDownLeft + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft + 2] + errB * 3 / 16));
|
||||
}
|
||||
const idxDown = idx + width * 4;
|
||||
tempData[idxDown] = Math.min(255, Math.max(0, tempData[idxDown] + errR * 5 / 16));
|
||||
tempData[idxDown + 1] = Math.min(255, Math.max(0, tempData[idxDown + 1] + errG * 5 / 16));
|
||||
tempData[idxDown + 2] = Math.min(255, Math.max(0, tempData[idxDown + 2] + errB * 5 / 16));
|
||||
if (x + 1 < width) {
|
||||
const idxDownRight = idx + width * 4 + 4;
|
||||
tempData[idxDownRight] = Math.min(255, Math.max(0, tempData[idxDownRight] + errR * 1 / 16));
|
||||
tempData[idxDownRight + 1] = Math.min(255, Math.max(0, tempData[idxDownRight + 1] + errG * 1 / 16));
|
||||
tempData[idxDownRight + 2] = Math.min(255, Math.max(0, tempData[idxDownRight + 2] + errB * 1 / 16));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
data[idx] = closest.r;
|
||||
data[idx + 1] = closest.g;
|
||||
data[idx + 2] = closest.b;
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function atkinsonDither(imageData, strength, mode) {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
const tempData = new Uint8ClampedArray(data);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
|
||||
data[idx] = closest.r;
|
||||
data[idx + 1] = closest.g;
|
||||
data[idx + 2] = closest.b;
|
||||
|
||||
const errR = (r - closest.r) * strength;
|
||||
const errG = (g - closest.g) * strength;
|
||||
const errB = (b - closest.b) * strength;
|
||||
|
||||
const fraction = 1 / 8;
|
||||
|
||||
if (x + 1 < width) {
|
||||
const idxRight = idx + 4;
|
||||
tempData[idxRight] = Math.min(255, Math.max(0, tempData[idxRight] + errR * fraction));
|
||||
tempData[idxRight + 1] = Math.min(255, Math.max(0, tempData[idxRight + 1] + errG * fraction));
|
||||
tempData[idxRight + 2] = Math.min(255, Math.max(0, tempData[idxRight + 2] + errB * fraction));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxRight2 = idx + 8;
|
||||
tempData[idxRight2] = Math.min(255, Math.max(0, tempData[idxRight2] + errR * fraction));
|
||||
tempData[idxRight2 + 1] = Math.min(255, Math.max(0, tempData[idxRight2 + 1] + errG * fraction));
|
||||
tempData[idxRight2 + 2] = Math.min(255, Math.max(0, tempData[idxRight2 + 2] + errB * fraction));
|
||||
}
|
||||
if (y + 1 < height) {
|
||||
if (x > 0) {
|
||||
const idxDownLeft = idx + width * 4 - 4;
|
||||
tempData[idxDownLeft] = Math.min(255, Math.max(0, tempData[idxDownLeft] + errR * fraction));
|
||||
tempData[idxDownLeft + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft + 1] + errG * fraction));
|
||||
tempData[idxDownLeft + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft + 2] + errB * fraction));
|
||||
}
|
||||
const idxDown = idx + width * 4;
|
||||
tempData[idxDown] = Math.min(255, Math.max(0, tempData[idxDown] + errR * fraction));
|
||||
tempData[idxDown + 1] = Math.min(255, Math.max(0, tempData[idxDown + 1] + errG * fraction));
|
||||
tempData[idxDown + 2] = Math.min(255, Math.max(0, tempData[idxDown + 2] + errB * fraction));
|
||||
if (x + 1 < width) {
|
||||
const idxDownRight = idx + width * 4 + 4;
|
||||
tempData[idxDownRight] = Math.min(255, Math.max(0, tempData[idxDownRight] + errR * fraction));
|
||||
tempData[idxDownRight + 1] = Math.min(255, Math.max(0, tempData[idxDownRight + 1] + errG * fraction));
|
||||
tempData[idxDownRight + 2] = Math.min(255, Math.max(0, tempData[idxDownRight + 2] + errB * fraction));
|
||||
}
|
||||
}
|
||||
if (y + 2 < height) {
|
||||
const idxDown2 = idx + width * 8;
|
||||
tempData[idxDown2] = Math.min(255, Math.max(0, tempData[idxDown2] + errR * fraction));
|
||||
tempData[idxDown2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2 + 1] + errG * fraction));
|
||||
tempData[idxDown2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2 + 2] + errB * fraction));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function stuckiDither(imageData, strength, mode) {
|
||||
// 执行Stucki错误扩散算法以处理图像
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
const tempData = new Uint8ClampedArray(data);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
|
||||
const errR = (r - closest.r) * strength;
|
||||
const errG = (g - closest.g) * strength;
|
||||
const errB = (b - closest.b) * strength;
|
||||
|
||||
const divisor = 42;
|
||||
|
||||
if (x + 1 < width) {
|
||||
const idxRight = idx + 4;
|
||||
tempData[idxRight] = Math.min(255, Math.max(0, tempData[idxRight] + errR * 8 / divisor));
|
||||
tempData[idxRight + 1] = Math.min(255, Math.max(0, tempData[idxRight + 1] + errG * 8 / divisor));
|
||||
tempData[idxRight + 2] = Math.min(255, Math.max(0, tempData[idxRight + 2] + errB * 8 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxRight2 = idx + 8;
|
||||
tempData[idxRight2] = Math.min(255, Math.max(0, tempData[idxRight2] + errR * 4 / divisor));
|
||||
tempData[idxRight2 + 1] = Math.min(255, Math.max(0, tempData[idxRight2 + 1] + errG * 4 / divisor));
|
||||
tempData[idxRight2 + 2] = Math.min(255, Math.max(0, tempData[idxRight2 + 2] + errB * 4 / divisor));
|
||||
}
|
||||
if (y + 1 < height) {
|
||||
if (x > 1) {
|
||||
const idxDownLeft2 = idx + width * 4 - 8;
|
||||
tempData[idxDownLeft2] = Math.min(255, Math.max(0, tempData[idxDownLeft2] + errR * 2 / divisor));
|
||||
tempData[idxDownLeft2 + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft2 + 1] + errG * 2 / divisor));
|
||||
tempData[idxDownLeft2 + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft2 + 2] + errB * 2 / divisor));
|
||||
}
|
||||
if (x > 0) {
|
||||
const idxDownLeft = idx + width * 4 - 4;
|
||||
tempData[idxDownLeft] = Math.min(255, Math.max(0, tempData[idxDownLeft] + errR * 4 / divisor));
|
||||
tempData[idxDownLeft + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft + 1] + errG * 4 / divisor));
|
||||
tempData[idxDownLeft + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft + 2] + errB * 4 / divisor));
|
||||
}
|
||||
const idxDown = idx + width * 4;
|
||||
tempData[idxDown] = Math.min(255, Math.max(0, tempData[idxDown] + errR * 8 / divisor));
|
||||
tempData[idxDown + 1] = Math.min(255, Math.max(0, tempData[idxDown + 1] + errG * 8 / divisor));
|
||||
tempData[idxDown + 2] = Math.min(255, Math.max(0, tempData[idxDown + 2] + errB * 8 / divisor));
|
||||
if (x + 1 < width) {
|
||||
const idxDownRight1 = idx + width * 4 + 4;
|
||||
tempData[idxDownRight1] = Math.min(255, Math.max(0, tempData[idxDownRight1] + errR * 4 / divisor));
|
||||
tempData[idxDownRight1 + 1] = Math.min(255, Math.max(0, tempData[idxDownRight1 + 1] + errG * 4 / divisor));
|
||||
tempData[idxDownRight1 + 2] = Math.min(255, Math.max(0, tempData[idxDownRight1 + 2] + errB * 4 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxDownRight2 = idx + width * 4 + 8;
|
||||
tempData[idxDownRight2] = Math.min(255, Math.max(0, tempData[idxDownRight2] + errR * 2 / divisor));
|
||||
tempData[idxDownRight2 + 1] = Math.min(255, Math.max(0, tempData[idxDownRight2 + 1] + errG * 2 / divisor));
|
||||
tempData[idxDownRight2 + 2] = Math.min(255, Math.max(0, tempData[idxDownRight2 + 2] + errB * 2 / divisor));
|
||||
}
|
||||
}
|
||||
if (y + 2 < height) {
|
||||
if (x > 1) {
|
||||
const idxDown2Left2 = idx + width * 8 - 8;
|
||||
tempData[idxDown2Left2] = Math.min(255, Math.max(0, tempData[idxDown2Left2] + errR * 1 / divisor));
|
||||
tempData[idxDown2Left2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2Left2 + 1] + errG * 1 / divisor));
|
||||
tempData[idxDown2Left2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2Left2 + 2] + errB * 1 / divisor));
|
||||
}
|
||||
if (x > 0) {
|
||||
const idxDown2Left = idx + width * 8 - 4;
|
||||
tempData[idxDown2Left] = Math.min(255, Math.max(0, tempData[idxDown2Left] + errR * 2 / divisor));
|
||||
tempData[idxDown2Left + 1] = Math.min(255, Math.max(0, tempData[idxDown2Left + 1] + errG * 2 / divisor));
|
||||
tempData[idxDown2Left + 2] = Math.min(255, Math.max(0, tempData[idxDown2Left + 2] + errB * 2 / divisor));
|
||||
}
|
||||
const idxDown2 = idx + width * 8;
|
||||
tempData[idxDown2] = Math.min(255, Math.max(0, tempData[idxDown2] + errR * 4 / divisor));
|
||||
tempData[idxDown2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2 + 1] + errG * 4 / divisor));
|
||||
tempData[idxDown2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2 + 2] + errB * 4 / divisor));
|
||||
if (x + 1 < width) {
|
||||
const idxDown2Right = idx + width * 8 + 4;
|
||||
tempData[idxDown2Right] = Math.min(255, Math.max(0, tempData[idxDown2Right] + errR * 2 / divisor));
|
||||
tempData[idxDown2Right + 1] = Math.min(255, Math.max(0, tempData[idxDown2Right + 1] + errG * 2 / divisor));
|
||||
tempData[idxDown2Right + 2] = Math.min(255, Math.max(0, tempData[idxDown2Right + 2] + errB * 2 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxDown2Right2 = idx + width * 8 + 8;
|
||||
tempData[idxDown2Right2] = Math.min(255, Math.max(0, tempData[idxDown2Right2] + errR * 1 / divisor));
|
||||
tempData[idxDown2Right2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2Right2 + 1] + errG * 1 / divisor));
|
||||
tempData[idxDown2Right2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2Right2 + 2] + errB * 1 / divisor));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
data[idx] = closest.r;
|
||||
data[idx + 1] = closest.g;
|
||||
data[idx + 2] = closest.b;
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function jarvisDither(imageData, strength, mode) {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
const tempData = new Uint8ClampedArray(data);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = tempData[idx];
|
||||
const g = tempData[idx + 1];
|
||||
const b = tempData[idx + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
|
||||
data[idx] = closest.r;
|
||||
data[idx + 1] = closest.g;
|
||||
data[idx + 2] = closest.b;
|
||||
|
||||
const errR = (r - closest.r) * strength;
|
||||
const errG = (g - closest.g) * strength;
|
||||
const errB = (b - closest.b) * strength;
|
||||
|
||||
const divisor = 48;
|
||||
|
||||
if (x + 1 < width) {
|
||||
const idxRight = idx + 4;
|
||||
tempData[idxRight] = Math.min(255, Math.max(0, tempData[idxRight] + errR * 7 / divisor));
|
||||
tempData[idxRight + 1] = Math.min(255, Math.max(0, tempData[idxRight + 1] + errG * 7 / divisor));
|
||||
tempData[idxRight + 2] = Math.min(255, Math.max(0, tempData[idxRight + 2] + errB * 7 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxRight2 = idx + 8;
|
||||
tempData[idxRight2] = Math.min(255, Math.max(0, tempData[idxRight2] + errR * 5 / divisor));
|
||||
tempData[idxRight2 + 1] = Math.min(255, Math.max(0, tempData[idxRight2 + 1] + errG * 5 / divisor));
|
||||
tempData[idxRight2 + 2] = Math.min(255, Math.max(0, tempData[idxRight2 + 2] + errB * 5 / divisor));
|
||||
}
|
||||
if (y + 1 < height) {
|
||||
if (x > 1) {
|
||||
const idxDownLeft2 = idx + width * 4 - 8;
|
||||
tempData[idxDownLeft2] = Math.min(255, Math.max(0, tempData[idxDownLeft2] + errR * 3 / divisor));
|
||||
tempData[idxDownLeft2 + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft2 + 1] + errG * 3 / divisor));
|
||||
tempData[idxDownLeft2 + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft2 + 2] + errB * 3 / divisor));
|
||||
}
|
||||
if (x > 0) {
|
||||
const idxDownLeft = idx + width * 4 - 4;
|
||||
tempData[idxDownLeft] = Math.min(255, Math.max(0, tempData[idxDownLeft] + errR * 5 / divisor));
|
||||
tempData[idxDownLeft + 1] = Math.min(255, Math.max(0, tempData[idxDownLeft + 1] + errG * 5 / divisor));
|
||||
tempData[idxDownLeft + 2] = Math.min(255, Math.max(0, tempData[idxDownLeft + 2] + errB * 5 / divisor));
|
||||
}
|
||||
const idxDown = idx + width * 4;
|
||||
tempData[idxDown] = Math.min(255, Math.max(0, tempData[idxDown] + errR * 7 / divisor));
|
||||
tempData[idxDown + 1] = Math.min(255, Math.max(0, tempData[idxDown + 1] + errG * 7 / divisor));
|
||||
tempData[idxDown + 2] = Math.min(255, Math.max(0, tempData[idxDown + 2] + errB * 7 / divisor));
|
||||
if (x + 1 < width) {
|
||||
const idxDownRight = idx + width * 4 + 4;
|
||||
tempData[idxDownRight] = Math.min(255, Math.max(0, tempData[idxDownRight] + errR * 5 / divisor));
|
||||
tempData[idxDownRight + 1] = Math.min(255, Math.max(0, tempData[idxDownRight + 1] + errG * 5 / divisor));
|
||||
tempData[idxDownRight + 2] = Math.min(255, Math.max(0, tempData[idxDownRight + 2] + errB * 5 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxDownRight2 = idx + width * 4 + 8;
|
||||
tempData[idxDownRight2] = Math.min(255, Math.max(0, tempData[idxDownRight2] + errR * 3 / divisor));
|
||||
tempData[idxDownRight2 + 1] = Math.min(255, Math.max(0, tempData[idxDownRight2 + 1] + errG * 3 / divisor));
|
||||
tempData[idxDownRight2 + 2] = Math.min(255, Math.max(0, tempData[idxDownRight2 + 2] + errB * 3 / divisor));
|
||||
}
|
||||
}
|
||||
if (y + 2 < height) {
|
||||
if (x > 1) {
|
||||
const idxDown2Left2 = idx + width * 8 - 8;
|
||||
tempData[idxDown2Left2] = Math.min(255, Math.max(0, tempData[idxDown2Left2] + errR * 1 / divisor));
|
||||
tempData[idxDown2Left2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2Left2 + 1] + errG * 1 / divisor));
|
||||
tempData[idxDown2Left2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2Left2 + 2] + errB * 1 / divisor));
|
||||
}
|
||||
if (x > 0) {
|
||||
const idxDown2Left = idx + width * 8 - 4;
|
||||
tempData[idxDown2Left] = Math.min(255, Math.max(0, tempData[idxDown2Left] + errR * 3 / divisor));
|
||||
tempData[idxDown2Left + 1] = Math.min(255, Math.max(0, tempData[idxDown2Left + 1] + errG * 3 / divisor));
|
||||
tempData[idxDown2Left + 2] = Math.min(255, Math.max(0, tempData[idxDown2Left + 2] + errB * 3 / divisor));
|
||||
}
|
||||
const idxDown2 = idx + width * 8;
|
||||
tempData[idxDown2] = Math.min(255, Math.max(0, tempData[idxDown2] + errR * 5 / divisor));
|
||||
tempData[idxDown2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2 + 1] + errG * 5 / divisor));
|
||||
tempData[idxDown2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2 + 2] + errB * 5 / divisor));
|
||||
if (x + 1 < width) {
|
||||
const idxDown2Right = idx + width * 8 + 4;
|
||||
tempData[idxDown2Right] = Math.min(255, Math.max(0, tempData[idxDown2Right] + errR * 3 / divisor));
|
||||
tempData[idxDown2Right + 1] = Math.min(255, Math.max(0, tempData[idxDown2Right + 1] + errG * 3 / divisor));
|
||||
tempData[idxDown2Right + 2] = Math.min(255, Math.max(0, tempData[idxDown2Right + 2] + errB * 3 / divisor));
|
||||
}
|
||||
if (x + 2 < width) {
|
||||
const idxDown2Right2 = idx + width * 8 + 8;
|
||||
tempData[idxDown2Right2] = Math.min(255, Math.max(0, tempData[idxDown2Right2] + errR * 1 / divisor));
|
||||
tempData[idxDown2Right2 + 1] = Math.min(255, Math.max(0, tempData[idxDown2Right2 + 1] + errG * 1 / divisor));
|
||||
tempData[idxDown2Right2 + 2] = Math.min(255, Math.max(0, tempData[idxDown2Right2 + 2] + errB * 1 / divisor));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function bayerDither(imageData, strength, mode) {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
|
||||
// 8x8 Bayer matrix (normalized to 0-1 range)
|
||||
const bayerMatrix = [
|
||||
[0, 32, 8, 40, 2, 34, 10, 42],
|
||||
[48, 16, 56, 24, 50, 18, 58, 26],
|
||||
[12, 44, 4, 36, 14, 46, 6, 38],
|
||||
[60, 28, 52, 20, 62, 30, 54, 22],
|
||||
[3, 35, 11, 43, 1, 33, 9, 41],
|
||||
[51, 19, 59, 27, 49, 17, 57, 25],
|
||||
[15, 47, 7, 39, 13, 45, 5, 37],
|
||||
[63, 31, 55, 23, 61, 29, 53, 21]
|
||||
];
|
||||
|
||||
const matrixSize = 8;
|
||||
const maxThreshold = 64;
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const idx = (y * width + x) * 4;
|
||||
const r = data[idx];
|
||||
const g = data[idx + 1];
|
||||
const b = data[idx + 2];
|
||||
|
||||
// Get threshold from Bayer matrix
|
||||
const matrixX = x % matrixSize;
|
||||
const matrixY = y % matrixSize;
|
||||
const threshold = (bayerMatrix[matrixY][matrixX] / maxThreshold) * 255;
|
||||
|
||||
// Apply dithering with strength factor
|
||||
const adjustedR = r + (threshold - 127.5) * strength;
|
||||
const adjustedG = g + (threshold - 127.5) * strength;
|
||||
const adjustedB = b + (threshold - 127.5) * strength;
|
||||
|
||||
// Clamp values
|
||||
const clampedR = Math.min(255, Math.max(0, adjustedR));
|
||||
const clampedG = Math.min(255, Math.max(0, adjustedG));
|
||||
const clampedB = Math.min(255, Math.max(0, adjustedB));
|
||||
|
||||
// Find closest color in palette
|
||||
const closest = findClosestColor(clampedR, clampedG, clampedB, mode);
|
||||
|
||||
data[idx] = closest.r;
|
||||
data[idx + 1] = closest.g;
|
||||
data[idx + 2] = closest.b;
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function ditherImage(imageData, alg, strength, mode) {
|
||||
switch (alg) {
|
||||
case 'floydSteinberg':
|
||||
return floydSteinbergDither(imageData, strength, mode);
|
||||
case 'atkinson':
|
||||
return atkinsonDither(imageData, strength, mode);
|
||||
case 'stucki':
|
||||
return stuckiDither(imageData, strength, mode);
|
||||
case 'jarvis':
|
||||
return jarvisDither(imageData, strength, mode);
|
||||
case 'bayer':
|
||||
return bayerDither(imageData, strength, mode);
|
||||
case 'none':
|
||||
default:
|
||||
return imageData;
|
||||
}
|
||||
}
|
||||
|
||||
function decodeProcessedData(processedData, width, height, mode) {
|
||||
const imageData = new ImageData(width, height);
|
||||
const data = imageData.data;
|
||||
|
||||
if (mode === 'sixColor') {
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const newIndex = (x * height) + (height - 1 - y);
|
||||
const value = processedData[newIndex];
|
||||
const color = rgbPalette.find(c => c.value === value) || rgbPalette[1]; // 默认白色
|
||||
const index = (y * width + x) * 4;
|
||||
data[index] = color.r;
|
||||
data[index + 1] = color.g;
|
||||
data[index + 2] = color.b;
|
||||
data[index + 3] = 255; // Alpha 透明度
|
||||
}
|
||||
}
|
||||
} else if (mode === 'fourColor') {
|
||||
const fourColorValues = [
|
||||
{ value: 0x00, r: 0, g: 0, b: 0 }, // 黑色
|
||||
{ value: 0x01, r: 255, g: 255, b: 255 }, // 白色
|
||||
{ value: 0x03, r: 255, g: 0, b: 0 }, // 红色
|
||||
{ value: 0x02, r: 255, g: 255, b: 0 } // 黄色
|
||||
];
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const newIndex = (y * width + x) / 4 | 0;
|
||||
const shift = 6 - ((x % 4) * 2);
|
||||
const value = (processedData[newIndex] >> shift) & 0x03;
|
||||
const color = fourColorValues.find(c => c.value === value) || fourColorValues[1]; // 默认白色
|
||||
const index = (y * width + x) * 4;
|
||||
data[index] = color.r;
|
||||
data[index + 1] = color.g;
|
||||
data[index + 2] = color.b;
|
||||
data[index + 3] = 255;
|
||||
}
|
||||
}
|
||||
} else if (mode === 'blackWhiteColor') {
|
||||
const byteWidth = Math.ceil(width / 8);
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const byteIndex = y * byteWidth + Math.floor(x / 8);
|
||||
const bitIndex = 7 - (x % 8);
|
||||
const bit = (processedData[byteIndex] >> bitIndex) & 1;
|
||||
const index = (y * width + x) * 4;
|
||||
data[index] = bit ? 255 : 0; // 白或黑
|
||||
data[index + 1] = bit ? 255 : 0;
|
||||
data[index + 2] = bit ? 255 : 0;
|
||||
data[index + 3] = 255;
|
||||
}
|
||||
}
|
||||
} else if (mode === 'threeColor') {
|
||||
const byteWidth = Math.ceil(width / 8);
|
||||
const blackWhiteData = processedData.slice(0, byteWidth * height);
|
||||
const redWhiteData = processedData.slice(byteWidth * height);
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const byteIndex = y * byteWidth + Math.floor(x / 8);
|
||||
const bitIndex = 7 - (x % 8);
|
||||
const blackWhiteBit = (blackWhiteData[byteIndex] >> bitIndex) & 1;
|
||||
const redWhiteBit = (redWhiteData[byteIndex] >> bitIndex) & 1;
|
||||
const index = (y * width + x) * 4;
|
||||
if (!redWhiteBit) {
|
||||
// 红色
|
||||
data[index] = 255;
|
||||
data[index + 1] = 0;
|
||||
data[index + 2] = 0;
|
||||
} else {
|
||||
// 黑或白
|
||||
data[index] = blackWhiteBit ? 255 : 0;
|
||||
data[index + 1] = blackWhiteBit ? 255 : 0;
|
||||
data[index + 2] = blackWhiteBit ? 255 : 0;
|
||||
}
|
||||
data[index + 3] = 255;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return imageData;
|
||||
}
|
||||
|
||||
function processImageData(imageData, mode) {
|
||||
const width = imageData.width;
|
||||
const height = imageData.height;
|
||||
const data = imageData.data;
|
||||
|
||||
let processedData;
|
||||
|
||||
if (mode === 'sixColor') {
|
||||
processedData = new Uint8Array(width * height);
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const index = (y * width + x) * 4;
|
||||
const r = data[index];
|
||||
const g = data[index + 1];
|
||||
const b = data[index + 2];
|
||||
|
||||
const closest = findClosestColor(r, g, b, mode);
|
||||
const newIndex = (x * height) + (height - 1 - y);
|
||||
processedData[newIndex] = closest.value;
|
||||
}
|
||||
}
|
||||
} else if (mode === 'fourColor') {
|
||||
processedData = new Uint8Array(Math.ceil((width * height) / 4));
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const index = (y * width + x) * 4;
|
||||
const r = data[index];
|
||||
const g = data[index + 1];
|
||||
const b = data[index + 2];
|
||||
const closest = findClosestColor(r, g, b, mode); // 使用 fourColorPalette
|
||||
const colorValue = closest.value; // 0x00 (黑), 0x01 (白), 0x02 (红), 0x03 (黄)
|
||||
const newIndex = (y * width + x) / 4 | 0;
|
||||
const shift = 6 - ((x % 4) * 2);
|
||||
processedData[newIndex] |= (colorValue << shift);
|
||||
}
|
||||
}
|
||||
} else if (mode === 'blackWhiteColor') {
|
||||
const byteWidth = Math.ceil(width / 8);
|
||||
processedData = new Uint8Array(byteWidth * height);
|
||||
const threshold = 140;
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const index = (y * width + x) * 4;
|
||||
const r = data[index];
|
||||
const g = data[index + 1];
|
||||
const b = data[index + 2];
|
||||
const grayscale = Math.round(0.299 * r + 0.587 * g + 0.114 * b);
|
||||
const bit = grayscale >= threshold ? 1 : 0;
|
||||
const byteIndex = y * byteWidth + Math.floor(x / 8);
|
||||
const bitIndex = 7 - (x % 8);
|
||||
processedData[byteIndex] |= (bit << bitIndex);
|
||||
}
|
||||
}
|
||||
} else if (mode === 'threeColor') {
|
||||
const byteWidth = Math.ceil(width / 8);
|
||||
const blackWhiteThreshold = 140;
|
||||
const redThreshold = 160;
|
||||
|
||||
const blackWhiteData = new Uint8Array(height * byteWidth);
|
||||
const redWhiteData = new Uint8Array(height * byteWidth);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
const index = (y * width + x) * 4;
|
||||
const r = data[index];
|
||||
const g = data[index + 1];
|
||||
const b = data[index + 2];
|
||||
const grayscale = Math.round(0.299 * r + 0.587 * g + 0.114 * b);
|
||||
|
||||
const blackWhiteBit = grayscale >= blackWhiteThreshold ? 1 : 0;
|
||||
const blackWhiteByteIndex = y * byteWidth + Math.floor(x / 8);
|
||||
const blackWhiteBitIndex = 7 - (x % 8);
|
||||
if (blackWhiteBit) {
|
||||
blackWhiteData[blackWhiteByteIndex] |= (0x01 << blackWhiteBitIndex);
|
||||
} else {
|
||||
blackWhiteData[blackWhiteByteIndex] &= ~(0x01 << blackWhiteBitIndex);
|
||||
}
|
||||
|
||||
const redWhiteBit = (r > redThreshold && r > g && r > b) ? 0 : 1;
|
||||
const redWhiteByteIndex = y * byteWidth + Math.floor(x / 8);
|
||||
const redWhiteBitIndex = 7 - (x % 8);
|
||||
if (redWhiteBit) {
|
||||
redWhiteData[redWhiteByteIndex] |= (0x01 << redWhiteBitIndex);
|
||||
} else {
|
||||
redWhiteData[redWhiteByteIndex] &= ~(0x01 << redWhiteBitIndex);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
processedData = new Uint8Array(blackWhiteData.length + redWhiteData.length);
|
||||
processedData.set(blackWhiteData, 0);
|
||||
processedData.set(redWhiteData, blackWhiteData.length);
|
||||
}
|
||||
|
||||
return processedData;
|
||||
}
|
||||
+2101
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,888 @@
|
||||
class PaintManager {
|
||||
constructor(canvas, ctx) {
|
||||
this.canvas = canvas;
|
||||
this.ctx = ctx;
|
||||
this.painting = false;
|
||||
this.lastX = 0;
|
||||
this.lastY = 0;
|
||||
this.brushColor = "#000000";
|
||||
this.brushSize = 2;
|
||||
this.currentTool = null;
|
||||
this.textElements = [];
|
||||
this.lineSegments = [];
|
||||
this.isTextPlacementMode = false;
|
||||
this.draggingCanvasContext = null;
|
||||
this.selectedTextElement = null;
|
||||
this.isDraggingText = false;
|
||||
this.dragOffsetX = 0;
|
||||
this.dragOffsetY = 0;
|
||||
this.textBold = false;
|
||||
this.textItalic = false;
|
||||
|
||||
// Brush cursor indicator
|
||||
this.brushCursor = null;
|
||||
|
||||
// Undo/Redo functionality
|
||||
this.historyStack = [];
|
||||
this.historyStep = -1;
|
||||
this.MAX_HISTORY = 50;
|
||||
|
||||
// Bind event handlers
|
||||
this.startPaint = this.startPaint.bind(this);
|
||||
this.paint = this.paint.bind(this);
|
||||
this.endPaint = this.endPaint.bind(this);
|
||||
this.handleCanvasClick = this.handleCanvasClick.bind(this);
|
||||
this.onTouchStart = this.onTouchStart.bind(this);
|
||||
this.onTouchMove = this.onTouchMove.bind(this);
|
||||
this.onTouchEnd = this.onTouchEnd.bind(this);
|
||||
this.handleKeyboard = this.handleKeyboard.bind(this);
|
||||
this.updateBrushCursor = this.updateBrushCursor.bind(this);
|
||||
this.hideBrushCursor = this.hideBrushCursor.bind(this);
|
||||
}
|
||||
|
||||
buildFontString(fontFamily, fontSize, bold = false, italic = false) {
|
||||
const fontParts = [];
|
||||
if (italic) fontParts.push('italic');
|
||||
if (bold) fontParts.push('bold');
|
||||
fontParts.push(`${fontSize}px`);
|
||||
fontParts.push(fontFamily);
|
||||
return fontParts.join(' ');
|
||||
}
|
||||
|
||||
parseInlineMarkdown(text, baseStyle = {}) {
|
||||
const patterns = [
|
||||
{
|
||||
regex: /`([^`]+)`/g,
|
||||
style: { code: true, fontFamily: 'monospace', background: 'rgba(0, 0, 0, 0.08)' }
|
||||
},
|
||||
{ regex: /\*\*([^*]+)\*\*/g, style: { bold: true } },
|
||||
{ regex: /__([^_]+)__/g, style: { bold: true } },
|
||||
{ regex: /\*([^*]+)\*/g, style: { italic: true } },
|
||||
{ regex: /_([^_]+)_/g, style: { italic: true } },
|
||||
{ regex: /~~([^~]+)~~/g, style: { strike: true, color: '#666666' } }
|
||||
];
|
||||
|
||||
let segments = [{ text, style: { ...baseStyle } }];
|
||||
|
||||
patterns.forEach(({ regex, style }) => {
|
||||
const nextSegments = [];
|
||||
segments.forEach((segment) => {
|
||||
if (!segment.text) return;
|
||||
regex.lastIndex = 0;
|
||||
let lastIndex = 0;
|
||||
let match = regex.exec(segment.text);
|
||||
let hasMatch = false;
|
||||
|
||||
while (match) {
|
||||
hasMatch = true;
|
||||
if (match.index > lastIndex) {
|
||||
nextSegments.push({
|
||||
text: segment.text.slice(lastIndex, match.index),
|
||||
style: { ...segment.style }
|
||||
});
|
||||
}
|
||||
nextSegments.push({
|
||||
text: match[1],
|
||||
style: { ...segment.style, ...style }
|
||||
});
|
||||
lastIndex = match.index + match[0].length;
|
||||
match = regex.exec(segment.text);
|
||||
}
|
||||
|
||||
if (!hasMatch) {
|
||||
nextSegments.push(segment);
|
||||
return;
|
||||
}
|
||||
|
||||
if (lastIndex < segment.text.length) {
|
||||
nextSegments.push({
|
||||
text: segment.text.slice(lastIndex),
|
||||
style: { ...segment.style }
|
||||
});
|
||||
}
|
||||
});
|
||||
segments = nextSegments;
|
||||
});
|
||||
|
||||
return segments.filter((segment) => segment.text);
|
||||
}
|
||||
|
||||
parseMarkdownText(markdownText, fontFamily, fontSize, color, defaultBold = false, defaultItalic = false) {
|
||||
const normalizedText = String(markdownText || '').replace(/\r\n/g, '\n');
|
||||
const lines = normalizedText.split('\n');
|
||||
const blocks = [];
|
||||
|
||||
lines.forEach((rawLine) => {
|
||||
const line = rawLine || '';
|
||||
const trimmed = line.trim();
|
||||
|
||||
if (!trimmed) {
|
||||
blocks.push({ type: 'blank', height: Math.max(12, Math.round(fontSize * 0.75)) });
|
||||
return;
|
||||
}
|
||||
|
||||
let type = 'paragraph';
|
||||
let content = line;
|
||||
let level = 0;
|
||||
let indent = 0;
|
||||
let prefix = '';
|
||||
|
||||
const headingMatch = trimmed.match(/^(#{1,6})\s+(.*)$/);
|
||||
const quoteMatch = line.match(/^\s*>\s?(.*)$/);
|
||||
const unorderedListMatch = line.match(/^(\s*)[-*+]\s+(.*)$/);
|
||||
const orderedListMatch = line.match(/^(\s*)(\d+)\.\s+(.*)$/);
|
||||
|
||||
if (headingMatch) {
|
||||
type = 'heading';
|
||||
level = headingMatch[1].length;
|
||||
content = headingMatch[2];
|
||||
} else if (quoteMatch) {
|
||||
type = 'quote';
|
||||
content = quoteMatch[1];
|
||||
} else if (unorderedListMatch) {
|
||||
type = 'list';
|
||||
content = unorderedListMatch[2];
|
||||
indent = Math.floor((unorderedListMatch[1] || '').length / 2);
|
||||
prefix = '•';
|
||||
} else if (orderedListMatch) {
|
||||
type = 'ordered-list';
|
||||
content = orderedListMatch[3];
|
||||
indent = Math.floor((orderedListMatch[1] || '').length / 2);
|
||||
prefix = `${orderedListMatch[2]}.`;
|
||||
}
|
||||
|
||||
const scale = type === 'heading' ? Math.max(1, 1.65 - (level - 1) * 0.16) : 1;
|
||||
const blockFontSize = Math.max(10, Math.round(fontSize * scale));
|
||||
const baseStyle = {
|
||||
color: type === 'quote' ? '#444444' : color,
|
||||
fontFamily,
|
||||
fontSize: blockFontSize,
|
||||
bold: type === 'heading' || defaultBold,
|
||||
italic: defaultItalic
|
||||
};
|
||||
|
||||
blocks.push({
|
||||
type,
|
||||
level,
|
||||
indent,
|
||||
prefix,
|
||||
fontSize: blockFontSize,
|
||||
lineHeight: Math.max(14, Math.round(blockFontSize * (type === 'heading' ? 1.45 : 1.35))),
|
||||
segments: this.parseInlineMarkdown(content, baseStyle)
|
||||
});
|
||||
});
|
||||
|
||||
return blocks;
|
||||
}
|
||||
|
||||
measureMarkdownBlock(block) {
|
||||
if (block.type === 'blank') {
|
||||
return { width: 0, height: block.height || 12 };
|
||||
}
|
||||
|
||||
const indentWidth = block.indent ? block.indent * 18 : 0;
|
||||
let prefixWidth = 0;
|
||||
if (block.prefix) {
|
||||
this.ctx.font = this.buildFontString('Arial', block.fontSize, true, false);
|
||||
prefixWidth = this.ctx.measureText(block.prefix).width + 8;
|
||||
}
|
||||
|
||||
let contentWidth = 0;
|
||||
block.segments.forEach((segment) => {
|
||||
this.ctx.font = this.buildFontString(
|
||||
segment.style.fontFamily || 'Arial',
|
||||
segment.style.fontSize || block.fontSize,
|
||||
!!segment.style.bold,
|
||||
!!segment.style.italic
|
||||
);
|
||||
contentWidth += this.ctx.measureText(segment.text).width;
|
||||
});
|
||||
|
||||
return {
|
||||
width: indentWidth + prefixWidth + contentWidth + (block.type === 'quote' ? 16 : 0),
|
||||
height: block.lineHeight
|
||||
};
|
||||
}
|
||||
|
||||
measureTextElement(textElement) {
|
||||
if (textElement.type === 'markdown' && Array.isArray(textElement.blocks)) {
|
||||
let width = 0;
|
||||
let height = 0;
|
||||
|
||||
textElement.blocks.forEach((block) => {
|
||||
const size = this.measureMarkdownBlock(block);
|
||||
width = Math.max(width, size.width);
|
||||
height += size.height;
|
||||
});
|
||||
|
||||
return {
|
||||
width,
|
||||
height,
|
||||
top: textElement.y - Math.max(14, textElement.baseFontSize || 16),
|
||||
left: textElement.x
|
||||
};
|
||||
}
|
||||
|
||||
this.ctx.font = textElement.font;
|
||||
const textWidth = this.ctx.measureText(textElement.text).width;
|
||||
const fontSizeMatch = textElement.font.match(/(\d+)px/);
|
||||
const textHeight = (fontSizeMatch ? parseInt(fontSizeMatch[1], 10) : 14) * 1.2;
|
||||
|
||||
return {
|
||||
width: textWidth,
|
||||
height: textHeight,
|
||||
top: textElement.y - textHeight,
|
||||
left: textElement.x
|
||||
};
|
||||
}
|
||||
|
||||
renderTextElement(textElement) {
|
||||
if (textElement.type === 'markdown' && Array.isArray(textElement.blocks)) {
|
||||
let currentY = textElement.y;
|
||||
|
||||
textElement.blocks.forEach((block) => {
|
||||
if (block.type === 'blank') {
|
||||
currentY += block.height || 12;
|
||||
return;
|
||||
}
|
||||
|
||||
let currentX = textElement.x + (block.indent ? block.indent * 18 : 0);
|
||||
if (block.type === 'quote') {
|
||||
this.ctx.strokeStyle = '#999999';
|
||||
this.ctx.lineWidth = 2;
|
||||
this.ctx.beginPath();
|
||||
this.ctx.moveTo(textElement.x + 6, currentY - block.lineHeight + 4);
|
||||
this.ctx.lineTo(textElement.x + 6, currentY + 2);
|
||||
this.ctx.stroke();
|
||||
currentX += 16;
|
||||
}
|
||||
|
||||
if (block.prefix) {
|
||||
this.ctx.font = this.buildFontString('Arial', block.fontSize, true, false);
|
||||
this.ctx.fillStyle = textElement.color;
|
||||
this.ctx.fillText(block.prefix, currentX, currentY);
|
||||
currentX += this.ctx.measureText(block.prefix).width + 8;
|
||||
}
|
||||
|
||||
block.segments.forEach((segment) => {
|
||||
const fontSize = segment.style.fontSize || block.fontSize;
|
||||
this.ctx.font = this.buildFontString(
|
||||
segment.style.fontFamily || textElement.fontFamily || 'Arial',
|
||||
fontSize,
|
||||
!!segment.style.bold,
|
||||
!!segment.style.italic
|
||||
);
|
||||
|
||||
const segmentWidth = this.ctx.measureText(segment.text).width;
|
||||
|
||||
if (segment.style.code) {
|
||||
this.ctx.fillStyle = segment.style.background || 'rgba(0, 0, 0, 0.08)';
|
||||
this.ctx.fillRect(currentX - 2, currentY - fontSize, segmentWidth + 4, block.lineHeight - 2);
|
||||
}
|
||||
|
||||
this.ctx.fillStyle = segment.style.color || textElement.color;
|
||||
this.ctx.fillText(segment.text, currentX, currentY);
|
||||
|
||||
if (segment.style.strike) {
|
||||
this.ctx.strokeStyle = segment.style.color || textElement.color;
|
||||
this.ctx.lineWidth = 1;
|
||||
this.ctx.beginPath();
|
||||
this.ctx.moveTo(currentX, currentY - fontSize * 0.35);
|
||||
this.ctx.lineTo(currentX + segmentWidth, currentY - fontSize * 0.35);
|
||||
this.ctx.stroke();
|
||||
}
|
||||
|
||||
currentX += segmentWidth;
|
||||
});
|
||||
|
||||
currentY += block.lineHeight;
|
||||
});
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
this.ctx.font = textElement.font;
|
||||
this.ctx.fillStyle = textElement.color;
|
||||
this.ctx.fillText(textElement.text, textElement.x, textElement.y);
|
||||
}
|
||||
|
||||
saveToHistory() {
|
||||
// Remove any states after current step (when user drew something after undoing)
|
||||
this.historyStack = this.historyStack.slice(0, this.historyStep + 1);
|
||||
|
||||
// Save current canvas state along with text and line data
|
||||
const canvasState = {
|
||||
imageData: this.ctx.getImageData(0, 0, this.canvas.width, this.canvas.height),
|
||||
textElements: JSON.parse(JSON.stringify(this.textElements)),
|
||||
lineSegments: JSON.parse(JSON.stringify(this.lineSegments))
|
||||
};
|
||||
|
||||
this.historyStack.push(canvasState);
|
||||
this.historyStep++;
|
||||
|
||||
// Limit history size
|
||||
if (this.historyStack.length > this.MAX_HISTORY) {
|
||||
this.historyStack.shift();
|
||||
this.historyStep--;
|
||||
}
|
||||
|
||||
this.updateUndoRedoButtons();
|
||||
}
|
||||
|
||||
clearHistory() {
|
||||
this.historyStack = [];
|
||||
this.historyStep = -1;
|
||||
this.updateUndoRedoButtons();
|
||||
}
|
||||
|
||||
undo() {
|
||||
if (this.historyStep > 0) {
|
||||
this.historyStep--;
|
||||
this.restoreFromHistory();
|
||||
}
|
||||
}
|
||||
|
||||
redo() {
|
||||
if (this.historyStep < this.historyStack.length - 1) {
|
||||
this.historyStep++;
|
||||
this.restoreFromHistory();
|
||||
}
|
||||
}
|
||||
|
||||
restoreFromHistory() {
|
||||
if (this.historyStep >= 0 && this.historyStep < this.historyStack.length) {
|
||||
const state = this.historyStack[this.historyStep];
|
||||
|
||||
// Restore canvas image
|
||||
this.ctx.putImageData(state.imageData, 0, 0);
|
||||
|
||||
// Restore text and line data
|
||||
this.textElements = JSON.parse(JSON.stringify(state.textElements));
|
||||
this.lineSegments = JSON.parse(JSON.stringify(state.lineSegments));
|
||||
|
||||
this.updateUndoRedoButtons();
|
||||
}
|
||||
}
|
||||
|
||||
updateUndoRedoButtons() {
|
||||
const undoBtn = document.getElementById('undo-btn');
|
||||
const redoBtn = document.getElementById('redo-btn');
|
||||
|
||||
if (undoBtn) {
|
||||
undoBtn.disabled = this.historyStep <= 0;
|
||||
}
|
||||
|
||||
if (redoBtn) {
|
||||
redoBtn.disabled = this.historyStep >= this.historyStack.length - 1;
|
||||
}
|
||||
}
|
||||
|
||||
initPaintTools() {
|
||||
document.getElementById('brush-mode').addEventListener('click', () => {
|
||||
if (this.currentTool === 'brush') {
|
||||
this.setActiveTool(null, '');
|
||||
} else {
|
||||
this.setActiveTool('brush', '画笔模式');
|
||||
this.brushColor = document.getElementById('brush-color').value;
|
||||
}
|
||||
});
|
||||
|
||||
document.getElementById('eraser-mode').addEventListener('click', () => {
|
||||
if (this.currentTool === 'eraser') {
|
||||
this.setActiveTool(null, '');
|
||||
} else {
|
||||
this.setActiveTool('eraser', '橡皮擦');
|
||||
this.brushColor = "#FFFFFF";
|
||||
}
|
||||
});
|
||||
|
||||
document.getElementById('text-mode').addEventListener('click', () => {
|
||||
if (this.currentTool === 'text') {
|
||||
this.setActiveTool(null, '');
|
||||
} else {
|
||||
this.setActiveTool('text', '插入文字');
|
||||
this.brushColor = document.getElementById('brush-color').value;
|
||||
}
|
||||
});
|
||||
|
||||
document.getElementById('brush-color').addEventListener('change', (e) => {
|
||||
this.brushColor = e.target.value;
|
||||
});
|
||||
|
||||
document.getElementById('brush-size').addEventListener('input', (e) => {
|
||||
this.brushSize = parseInt(e.target.value);
|
||||
this.updateBrushCursorSize();
|
||||
});
|
||||
|
||||
document.getElementById('add-text-btn').addEventListener('click', () => this.startTextPlacement());
|
||||
|
||||
// Add event listeners for bold and italic buttons
|
||||
document.getElementById('text-bold').addEventListener('click', () => {
|
||||
this.textBold = !this.textBold;
|
||||
document.getElementById('text-bold').classList.toggle('primary', this.textBold);
|
||||
});
|
||||
|
||||
document.getElementById('text-italic').addEventListener('click', () => {
|
||||
this.textItalic = !this.textItalic;
|
||||
document.getElementById('text-italic').classList.toggle('primary', this.textItalic);
|
||||
});
|
||||
|
||||
// Add undo/redo button listeners
|
||||
document.getElementById('undo-btn').addEventListener('click', () => this.undo());
|
||||
document.getElementById('redo-btn').addEventListener('click', () => this.redo());
|
||||
|
||||
this.canvas.addEventListener('mousedown', this.startPaint);
|
||||
this.canvas.addEventListener('mousemove', this.paint);
|
||||
this.canvas.addEventListener('mouseup', this.endPaint);
|
||||
this.canvas.addEventListener('mouseleave', this.endPaint);
|
||||
this.canvas.addEventListener('click', this.handleCanvasClick);
|
||||
|
||||
// Touch support
|
||||
this.canvas.addEventListener('touchstart', this.onTouchStart);
|
||||
this.canvas.addEventListener('touchmove', this.onTouchMove);
|
||||
this.canvas.addEventListener('touchend', this.onTouchEnd);
|
||||
|
||||
// Keyboard shortcuts for undo/redo
|
||||
document.addEventListener('keydown', this.handleKeyboard);
|
||||
|
||||
// Mouse move for brush cursor
|
||||
this.canvas.addEventListener('mouseenter', this.updateBrushCursor);
|
||||
this.canvas.addEventListener('mousemove', this.updateBrushCursor);
|
||||
|
||||
// Create brush cursor element
|
||||
this.createBrushCursor();
|
||||
|
||||
// Initialize history with blank canvas state
|
||||
this.saveToHistory();
|
||||
}
|
||||
|
||||
handleKeyboard(e) {
|
||||
// Ctrl+Z or Cmd+Z for undo
|
||||
if ((e.ctrlKey || e.metaKey) && e.key === 'z' && !e.shiftKey) {
|
||||
e.preventDefault();
|
||||
this.undo();
|
||||
}
|
||||
// Ctrl+Y or Ctrl+Shift+Z or Cmd+Shift+Z for redo
|
||||
else if ((e.ctrlKey || e.metaKey) && (e.key === 'y' || (e.shiftKey && e.key === 'z'))) {
|
||||
e.preventDefault();
|
||||
this.redo();
|
||||
}
|
||||
}
|
||||
|
||||
setActiveTool(tool, title) {
|
||||
setCanvasTitle(title);
|
||||
this.currentTool = tool;
|
||||
|
||||
this.canvas.parentNode.classList.toggle('brush-mode', this.currentTool === 'brush');
|
||||
this.canvas.parentNode.classList.toggle('eraser-mode', this.currentTool === 'eraser');
|
||||
this.canvas.parentNode.classList.toggle('text-mode', this.currentTool === 'text');
|
||||
|
||||
document.getElementById('brush-mode').classList.toggle('active', this.currentTool === 'brush');
|
||||
document.getElementById('eraser-mode').classList.toggle('active', this.currentTool === 'eraser');
|
||||
document.getElementById('text-mode').classList.toggle('active', this.currentTool === 'text');
|
||||
|
||||
document.getElementById('brush-color').disabled = this.currentTool === 'eraser';
|
||||
document.getElementById('brush-size').disabled = this.currentTool === 'text';
|
||||
|
||||
document.getElementById('undo-btn').classList.toggle('hide', this.currentTool === null);
|
||||
document.getElementById('redo-btn').classList.toggle('hide', this.currentTool === null);
|
||||
|
||||
// Cancel any pending text placement
|
||||
this.cancelTextPlacement();
|
||||
}
|
||||
|
||||
createBrushCursor() {
|
||||
// Create a div element to show as brush cursor
|
||||
this.brushCursor = document.createElement('div');
|
||||
this.brushCursor.id = 'brush-cursor';
|
||||
this.brushCursor.style.position = 'fixed';
|
||||
this.brushCursor.style.border = '2px solid rgba(0, 0, 0, 0.5)';
|
||||
this.brushCursor.style.borderRadius = '50%';
|
||||
this.brushCursor.style.pointerEvents = 'none';
|
||||
this.brushCursor.style.display = 'none';
|
||||
this.brushCursor.style.zIndex = '10000';
|
||||
this.brushCursor.style.transform = 'translate(-50%, -50%)';
|
||||
this.brushCursor.style.willChange = 'transform';
|
||||
this.brushCursor.style.left = '0';
|
||||
this.brushCursor.style.top = '0';
|
||||
document.body.appendChild(this.brushCursor);
|
||||
this.updateBrushCursorSize();
|
||||
|
||||
// For requestAnimationFrame throttling
|
||||
this.cursorUpdateScheduled = false;
|
||||
this.pendingCursorX = 0;
|
||||
this.pendingCursorY = 0;
|
||||
}
|
||||
|
||||
updateBrushCursorSize() {
|
||||
if (!this.brushCursor) return;
|
||||
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = rect.width / this.canvas.width;
|
||||
const scaleY = rect.height / this.canvas.height;
|
||||
const scale = Math.min(scaleX, scaleY);
|
||||
|
||||
const size = this.brushSize * scale;
|
||||
this.brushCursor.style.width = size + 'px';
|
||||
this.brushCursor.style.height = size + 'px';
|
||||
}
|
||||
|
||||
updateBrushCursor(e) {
|
||||
if (!this.brushCursor) return;
|
||||
|
||||
if (this.currentTool === 'brush' || this.currentTool === 'eraser') {
|
||||
// Check if mouse is within canvas bounds
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const isInCanvas = e.clientX >= rect.left &&
|
||||
e.clientX <= rect.right &&
|
||||
e.clientY >= rect.top &&
|
||||
e.clientY <= rect.bottom;
|
||||
|
||||
if (isInCanvas) {
|
||||
this.brushCursor.style.display = 'block';
|
||||
this.canvas.style.cursor = 'none';
|
||||
|
||||
// Store the pending position
|
||||
this.pendingCursorX = e.clientX;
|
||||
this.pendingCursorY = e.clientY;
|
||||
|
||||
// Schedule update using requestAnimationFrame for smooth movement
|
||||
if (!this.cursorUpdateScheduled) {
|
||||
this.cursorUpdateScheduled = true;
|
||||
requestAnimationFrame(() => {
|
||||
this.brushCursor.style.transform = `translate(${this.pendingCursorX}px, ${this.pendingCursorY}px) translate(-50%, -50%)`;
|
||||
this.cursorUpdateScheduled = false;
|
||||
});
|
||||
}
|
||||
|
||||
// Update color to match brush or show white for eraser (only needs to happen once or when tool changes)
|
||||
if (this.currentTool === 'eraser') {
|
||||
if (this.brushCursor.getAttribute('data-tool') !== 'eraser') {
|
||||
this.brushCursor.style.border = '2px solid rgba(255, 0, 0, 0.7)';
|
||||
this.brushCursor.style.backgroundColor = 'rgba(255, 255, 255, 0.2)';
|
||||
this.brushCursor.style.boxShadow = 'none';
|
||||
this.brushCursor.setAttribute('data-tool', 'eraser');
|
||||
}
|
||||
} else {
|
||||
if (this.brushCursor.getAttribute('data-tool') !== 'brush') {
|
||||
// Use a contrasting border - white with black outline for visibility
|
||||
this.brushCursor.style.border = '1px solid white';
|
||||
this.brushCursor.style.boxShadow = '0 0 0 1px black, inset 0 0 0 1px black';
|
||||
this.brushCursor.style.backgroundColor = 'transparent';
|
||||
this.brushCursor.setAttribute('data-tool', 'brush');
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// Hide cursor when outside canvas
|
||||
this.brushCursor.style.display = 'none';
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
hideBrushCursor() {
|
||||
if (this.brushCursor) {
|
||||
this.brushCursor.style.display = 'none';
|
||||
}
|
||||
this.canvas.style.cursor = 'default';
|
||||
}
|
||||
|
||||
startPaint(e) {
|
||||
if (!this.currentTool) return;
|
||||
|
||||
if (this.currentTool === 'text') {
|
||||
// Check if we're clicking on a text element to drag
|
||||
const textElement = this.findTextElementAt(e);
|
||||
if (textElement && textElement === this.selectedTextElement) {
|
||||
this.isDraggingText = true;
|
||||
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = this.canvas.width / rect.width;
|
||||
const scaleY = this.canvas.height / rect.height;
|
||||
const x = (e.clientX - rect.left) * scaleX;
|
||||
const y = (e.clientY - rect.top) * scaleY;
|
||||
|
||||
// Calculate offset for smooth dragging
|
||||
this.dragOffsetX = textElement.x - x;
|
||||
this.dragOffsetY = textElement.y - y;
|
||||
|
||||
return; // Don't start drawing
|
||||
}
|
||||
} else {
|
||||
this.painting = true;
|
||||
this.draw(e);
|
||||
}
|
||||
}
|
||||
|
||||
endPaint() {
|
||||
if (this.painting || this.isDraggingText) {
|
||||
this.saveToHistory(); // Save state after drawing or dragging text
|
||||
}
|
||||
this.painting = false;
|
||||
this.isDraggingText = false;
|
||||
this.lastX = 0;
|
||||
this.lastY = 0;
|
||||
|
||||
this.hideBrushCursor();
|
||||
}
|
||||
|
||||
paint(e) {
|
||||
if (!this.currentTool) return;
|
||||
|
||||
if (this.currentTool === 'text') {
|
||||
if (this.isDraggingText && this.selectedTextElement) {
|
||||
this.dragText(e);
|
||||
}
|
||||
} else {
|
||||
if (this.painting) {
|
||||
this.draw(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
draw(e) {
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = this.canvas.width / rect.width;
|
||||
const scaleY = this.canvas.height / rect.height;
|
||||
const x = (e.clientX - rect.left) * scaleX;
|
||||
const y = (e.clientY - rect.top) * scaleY;
|
||||
|
||||
this.ctx.lineJoin = 'round';
|
||||
this.ctx.lineCap = 'round';
|
||||
this.ctx.strokeStyle = this.brushColor;
|
||||
this.ctx.lineWidth = this.brushSize;
|
||||
|
||||
this.ctx.beginPath();
|
||||
|
||||
if (this.lastX === 0 && this.lastY === 0) {
|
||||
// For the first point, just do a dot
|
||||
this.ctx.moveTo(x, y);
|
||||
this.ctx.lineTo(x + 0.1, y + 0.1);
|
||||
|
||||
// Store the dot for redrawing
|
||||
this.lineSegments.push({
|
||||
type: 'dot',
|
||||
x: x,
|
||||
y: y,
|
||||
color: this.brushColor,
|
||||
size: this.brushSize
|
||||
});
|
||||
} else {
|
||||
// Connect to the previous point
|
||||
this.ctx.moveTo(this.lastX, this.lastY);
|
||||
this.ctx.lineTo(x, y);
|
||||
|
||||
// Store the line segment for redrawing
|
||||
this.lineSegments.push({
|
||||
type: 'line',
|
||||
x1: this.lastX,
|
||||
y1: this.lastY,
|
||||
x2: x,
|
||||
y2: y,
|
||||
color: this.brushColor,
|
||||
size: this.brushSize
|
||||
});
|
||||
}
|
||||
|
||||
this.ctx.stroke();
|
||||
|
||||
this.lastX = x;
|
||||
this.lastY = y;
|
||||
}
|
||||
|
||||
handleCanvasClick(e) {
|
||||
if (this.currentTool === 'text' && this.isTextPlacementMode) {
|
||||
this.placeText(e);
|
||||
}
|
||||
}
|
||||
|
||||
onTouchStart(e) {
|
||||
e.preventDefault();
|
||||
const touch = e.touches[0];
|
||||
|
||||
// If in text placement mode, handle as a click
|
||||
if (this.currentTool === 'text' && this.isTextPlacementMode) {
|
||||
const mouseEvent = new MouseEvent('click', {
|
||||
clientX: touch.clientX,
|
||||
clientY: touch.clientY
|
||||
});
|
||||
this.canvas.dispatchEvent(mouseEvent);
|
||||
return;
|
||||
}
|
||||
|
||||
// Otherwise handle as normal drawing
|
||||
const mouseEvent = new MouseEvent('mousedown', {
|
||||
clientX: touch.clientX,
|
||||
clientY: touch.clientY
|
||||
});
|
||||
this.canvas.dispatchEvent(mouseEvent);
|
||||
}
|
||||
|
||||
onTouchMove(e) {
|
||||
e.preventDefault();
|
||||
const touch = e.touches[0];
|
||||
const mouseEvent = new MouseEvent('mousemove', {
|
||||
clientX: touch.clientX,
|
||||
clientY: touch.clientY
|
||||
});
|
||||
this.canvas.dispatchEvent(mouseEvent);
|
||||
}
|
||||
|
||||
onTouchEnd(e) {
|
||||
e.preventDefault();
|
||||
this.endPaint();
|
||||
}
|
||||
|
||||
dragText(e) {
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = this.canvas.width / rect.width;
|
||||
const scaleY = this.canvas.height / rect.height;
|
||||
const x = (e.clientX - rect.left) * scaleX;
|
||||
const y = (e.clientY - rect.top) * scaleY;
|
||||
|
||||
// Update text position with offset
|
||||
this.selectedTextElement.x = x + this.dragOffsetX;
|
||||
this.selectedTextElement.y = y + this.dragOffsetY;
|
||||
|
||||
// Redraw selected text element
|
||||
if (this.draggingCanvasContext) {
|
||||
this.ctx.putImageData(this.draggingCanvasContext, 0, 0);
|
||||
} else {
|
||||
this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
|
||||
}
|
||||
this.renderTextElement(this.selectedTextElement);
|
||||
}
|
||||
|
||||
findTextElementAt(e) {
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = this.canvas.width / rect.width;
|
||||
const scaleY = this.canvas.height / rect.height;
|
||||
const x = (e.clientX - rect.left) * scaleX;
|
||||
const y = (e.clientY - rect.top) * scaleY;
|
||||
|
||||
// Search through text elements in reverse order (top-most first)
|
||||
for (let i = this.textElements.length - 1; i >= 0; i--) {
|
||||
const text = this.textElements[i];
|
||||
|
||||
const measurement = this.measureTextElement(text);
|
||||
const textWidth = measurement.width;
|
||||
const textHeight = measurement.height;
|
||||
const top = measurement.top;
|
||||
const left = measurement.left;
|
||||
|
||||
// Check if click is within text bounds (allowing for some margin)
|
||||
const margin = 5;
|
||||
if (x >= left - margin &&
|
||||
x <= left + textWidth + margin &&
|
||||
y >= top - margin &&
|
||||
y <= top + textHeight + margin) {
|
||||
return text;
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
startTextPlacement() {
|
||||
const text = document.getElementById('text-input').value.trim();
|
||||
if (!text) {
|
||||
alert('请输入文字内容');
|
||||
return;
|
||||
}
|
||||
|
||||
this.isTextPlacementMode = true;
|
||||
|
||||
// Add visual feedback
|
||||
setCanvasTitle('点击画布放置文字');
|
||||
this.canvas.classList.add('text-placement-mode');
|
||||
}
|
||||
|
||||
cancelTextPlacement() {
|
||||
this.isTextPlacementMode = false;
|
||||
this.canvas.classList.remove('text-placement-mode');
|
||||
|
||||
// reset dragging state
|
||||
this.isDraggingText = false;
|
||||
this.dragOffsetX = 0;
|
||||
this.dragOffsetY = 0;
|
||||
this.selectedTextElement = null;
|
||||
this.draggingCanvasContext = null;
|
||||
}
|
||||
|
||||
placeText(e) {
|
||||
const rect = this.canvas.getBoundingClientRect();
|
||||
const scaleX = this.canvas.width / rect.width;
|
||||
const scaleY = this.canvas.height / rect.height;
|
||||
const x = (e.clientX - rect.left) * scaleX;
|
||||
const y = (e.clientY - rect.top) * scaleY;
|
||||
|
||||
const text = document.getElementById('text-input').value;
|
||||
const fontFamily = document.getElementById('font-family').value;
|
||||
const fontSize = parseInt(document.getElementById('font-size').value, 10);
|
||||
const blocks = this.parseMarkdownText(text, fontFamily, fontSize, this.brushColor, this.textBold, this.textItalic);
|
||||
|
||||
// Create a new text element
|
||||
const newText = {
|
||||
type: 'markdown',
|
||||
text: text,
|
||||
x: x,
|
||||
y: y,
|
||||
font: this.buildFontString(fontFamily, fontSize, this.textBold, this.textItalic),
|
||||
color: this.brushColor,
|
||||
fontFamily: fontFamily,
|
||||
baseFontSize: fontSize,
|
||||
blocks: blocks
|
||||
};
|
||||
|
||||
// Add to our list of text elements
|
||||
this.textElements.push(newText);
|
||||
|
||||
// Select this text element for immediate dragging
|
||||
this.selectedTextElement = newText;
|
||||
this.draggingCanvasContext = this.ctx.getImageData(0, 0, this.canvas.width, this.canvas.height);
|
||||
|
||||
// Draw text on canvas
|
||||
this.renderTextElement(newText);
|
||||
|
||||
// Save to history after placing text
|
||||
this.saveToHistory();
|
||||
|
||||
// Reset
|
||||
document.getElementById('text-input').value = '';
|
||||
this.isTextPlacementMode = false;
|
||||
this.canvas.classList.remove('text-placement-mode');
|
||||
setCanvasTitle('拖动新添加文字可调整位置');
|
||||
}
|
||||
|
||||
redrawTextElements() {
|
||||
// Redraw all text elements after dithering
|
||||
this.textElements.forEach(item => {
|
||||
this.renderTextElement(item);
|
||||
});
|
||||
}
|
||||
|
||||
redrawLineSegments() {
|
||||
// Redraw all line segments after dithering
|
||||
this.lineSegments.forEach(segment => {
|
||||
this.ctx.lineJoin = 'round';
|
||||
this.ctx.lineCap = 'round';
|
||||
this.ctx.strokeStyle = segment.color;
|
||||
this.ctx.lineWidth = segment.size;
|
||||
this.ctx.beginPath();
|
||||
|
||||
if (segment.type === 'dot') {
|
||||
this.ctx.moveTo(segment.x, segment.y);
|
||||
this.ctx.lineTo(segment.x + 0.1, segment.y + 0.1);
|
||||
} else {
|
||||
this.ctx.moveTo(segment.x1, segment.y1);
|
||||
this.ctx.lineTo(segment.x2, segment.y2);
|
||||
}
|
||||
|
||||
this.ctx.stroke();
|
||||
});
|
||||
}
|
||||
|
||||
clearElements() {
|
||||
this.textElements = [];
|
||||
this.lineSegments = [];
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user