JustHTML/Tools/ImageRotatorFlipper.html at main · X-starRelight/JustHTML · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>图片旋转翻转工具 - JustHTML 只需网页</title>
  <script>
/**
 * 动态加载（强制去除缓存） CSS 的函数
 * @param {string} src - 要加载的 CSS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadStyle(src) {
  return new Promise((resolve, reject) => {
    const link = document.createElement('link');
    link.rel = 'stylesheet';
    link.href = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    link.async = true;
    link.onload = resolve;
    link.onerror = reject;
    document.head.appendChild(link);
  });
}

/**
 * 动态加载（强制去除缓存） JS 的函数
 * @param {string} src - 要加载的 JS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadScript(src) {
  return new Promise((resolve, reject) => {
    const script = document.createElement('script');
    script.src = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    script.async = true;
    script.onload = resolve;
    script.onerror = reject;
    document.head.appendChild(script);
  });
}
</script>

  <script>
    loadStyle('../assets/style.css')
    let scriptArray = [
      "../assets/AddHeader_Tools.js",
      "../assets/AddFooter.js",
      "../assets/AddIco.js",
      "../assets/AutoRun.js",
    ]

    scriptArray.forEach(script => {
      loadScript(script);
    });
  </script>

  <script src="../package/Vue/code/vue.global.prod.js"></script>
  <script type="module" src="../package/Sober/code/main.js"></script>

  <style>
    .rotator-controls {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      margin: 15px 0;
    }

    .control-item {
      display: flex;
      flex-direction: column;
    }

    .control-item label {
      margin-bottom: 5px;
      color: var(--accent-color);
    }

    .control-item input, .control-item select {
      padding: 8px;
    }

    .image-container {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin: 20px 0;
    }

    .image-preview {
      flex: 1;
      min-width: 300px;
      text-align: center;
    }

    .image-preview img {
      max-width: 100%;
      max-height: 400px;
      display: block;
      margin: 0 auto;
      transform-origin: center;
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 15px 0;
    }

    .rotation-buttons {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 10px;
      margin: 15px 0;
    }

    .flip-buttons {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin: 15px 0;
    }

    .info-box {
      background-color: var(--bg-tertiary);
      padding: 10px;
      border-radius: var(--border-radius);
      margin: 10px 0;
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="container">
      <a href="../index.html" class="back-link">← 返回首页</a>

      <div class="tool-section">
        <h2>图片旋转翻转工具</h2>
        <p>旋转或翻转图片</p>

        <div class="info-box">
          <p><strong>使用说明：</strong></p>
          <p>• 上传图片后，使用按钮旋转或翻转图片</p>
          <p>• 也可以直接输入旋转角度或选择翻转方向</p>
          <p>• 处理完成后点击"保存图片"按钮下载</p>
        </div>

        <div>
          <input type="file" @change="handleFileUpload" accept="image/*" />

          <div class="rotator-controls">
            <div class="control-item">
              <label for="rotationAngle">旋转角度 (度)</label>
              <input
                type="range"
                id="rotationAngle"
                v-model.number="rotation"
                min="0"
                max="360"
                step="1"
              />
              <span>{{ rotation }}°</span>
            </div>

            <div class="control-item">
              <label for="scaleX">水平翻转</label>
              <select id="scaleX" v-model="scaleX">
                <option value="1">正常</option>
                <option value="-1">翻转</option>
              </select>
            </div>

            <div class="control-item">
              <label for="scaleY">垂直翻转</label>
              <select id="scaleY" v-model="scaleY">
                <option value="1">正常</option>
                <option value="-1">翻转</option>
              </select>
            </div>
          </div>

          <div class="rotation-buttons">
            <button @click="rotate(-90)">逆时针90°</button>
            <button @click="rotate(90)">顺时针90°</button>
            <button @click="rotate(180)">旋转180°</button>
            <button @click="setRotation(0)">重置旋转</button>
          </div>

          <div class="flip-buttons">
            <button @click="flipHorizontal">{{ scaleX === 1 ? '水平翻转' : '取消水平翻转' }}</button>
            <button @click="flipVertical">{{ scaleY === 1 ? '垂直翻转' : '取消垂直翻转' }}</button>
          </div>

          <div class="controls">
            <button @click="applyTransformations">应用变换</button>
            <button @click="downloadImage" :disabled="!processedImage">下载图片</button>
            <button @click="resetForm">重置</button>
          </div>

          <div class="image-container" v-if="originalImage">
            <div class="image-preview">
              <h3>原始图片</h3>
              <img :src="originalImage" alt="Original Image" />
              <p>尺寸: {{ originalWidth }} x {{ originalHeight }}</p>
            </div>

            <div class="image-preview" v-if="processedImage">
              <h3>处理后图片</h3>
              <img
                :src="processedImage"
                alt="Processed Image"
                :style="{
                  transform: `rotate(${rotation}deg) scaleX(${scaleX}) scaleY(${scaleY})`
                }"
              />
              <p>尺寸: {{ processedWidth }} x {{ processedHeight }}</p>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

  <script>
    const { createApp, ref } = Vue;

    createApp({
      setup() {
        const originalImage = ref('');
        const originalWidth = ref(0);
        const originalHeight = ref(0);
        const rotation = ref(0);
        const scaleX = ref(1);
        const scaleY = ref(1);
        const processedImage = ref('');
        const processedWidth = ref(0);
        const processedHeight = ref(0);

        const handleFileUpload = (event) => {
          const file = event.target.files[0];
          if (!file) return;

          const reader = new FileReader();
          reader.onload = (e) => {
            originalImage.value = e.target.result;

            // 获取原始图片尺寸
            const img = new Image();
            img.onload = () => {
              originalWidth.value = img.width;
              originalHeight.value = img.height;
              processedWidth.value = img.width;
              processedHeight.value = img.height;
            };
            img.src = e.target.result;
          };
          reader.readAsDataURL(file);
        };

        const rotate = (angle) => {
          rotation.value = (rotation.value + angle) % 360;
          if (rotation.value < 0) rotation.value += 360;
        };

        const setRotation = (angle) => {
          rotation.value = angle;
        };

        const flipHorizontal = () => {
          scaleX.value = scaleX.value === 1 ? -1 : 1;
        };

        const flipVertical = () => {
          scaleY.value = scaleY.value === 1 ? -1 : 1;
        };

        const applyTransformations = () => {
          if (!originalImage.value) return;

          const img = new Image();
          img.onload = () => {
            // 计算变换后的新尺寸
            const radians = rotation.value * Math.PI / 180;
            const sin = Math.sin(radians);
            const cos = Math.cos(radians);

            let newWidth, newHeight;
            if (rotation.value % 180 === 0) {
              newWidth = img.width;
              newHeight = img.height;
            } else {
              newWidth = Math.abs(img.width * cos) + Math.abs(img.height * sin);
              newHeight = Math.abs(img.width * sin) + Math.abs(img.height * cos);
            }

            const canvas = document.createElement('canvas');
            canvas.width = newWidth;
            canvas.height = newHeight;

            const ctx = canvas.getContext('2d');

            // 移动到中心点
            ctx.translate(canvas.width / 2, canvas.height / 2);
            // 应用翻转
            ctx.scale(scaleX.value, scaleY.value);
            // 应用旋转
            ctx.rotate(radians);
            // 绘制图像（相对于中心点）
            ctx.drawImage(img, -img.width / 2, -img.height / 2);

            processedImage.value = canvas.toDataURL('image/jpeg', 0.9);
            processedWidth.value = newWidth;
            processedHeight.value = newHeight;
          };
          img.src = originalImage.value;
        };

        const downloadImage = () => {
          if (!processedImage.value) return;

          const link = document.createElement('a');
          link.href = processedImage.value;
          link.download = 'rotated_flipped_image.jpg';
          link.click();
        };

        const resetForm = () => {
          rotation.value = 0;
          scaleX.value = 1;
          scaleY.value = 1;
          processedImage.value = '';
          processedWidth.value = 0;
          processedHeight.value = 0;
        };

        return {
          originalImage,
          originalWidth,
          originalHeight,
          rotation,
          scaleX,
          scaleY,
          processedImage,
          processedWidth,
          processedHeight,
          handleFileUpload,
          rotate,
          setRotation,
          flipHorizontal,
          flipVertical,
          applyTransformations,
          downloadImage,
          resetForm
        };
      }
    }).mount('#app');
  </script>
</body>
</html>