pix2text/render.py

# coding: utf-8
# [Pix2Text](https://github.com/breezedeus/pix2text): an Open-Source Alternative to Mathpix.
# Copyright (C) 2022-2024, [Breezedeus](https://www.breezedeus.com).

COLOR_MAPPING = {
    'general': '#009933',
    'english': '#3399ff',
    'formula': '#ff8000',
    'hybrid': '#009999',
    'text': '#3399ff',
    'isolated': '#ff8000',
    'text-embed': '#009999',
}

def render_html(newest_fp, image_type, text, out_html_fp):
    html_str = """
<!DOCTYPE html>
<html>
  <head>
    <link
      rel="stylesheet"
      href="https://cindyjs.org/dist/v0.8/katex/katex.min.css"
    />
    <script
      type="text/javascript"
      src="https://cindyjs.org/dist/v0.8/katex/katex.min.js"
    ></script>
    <script
      type="text/javascript"
      src="https://cindyjs.org/dist/v0.8/webfont.js"
    ></script>
    <style>
      body {
        /* background-color: rgb(154, 183, 249); */
      }
      #latex {
        min-height: auto;
        margin-left: auto;
        margin-right: auto;
        width: 760px;
      }

      #textarea {
        margin-left: auto;
        margin-right: auto;
        display: block;
      padding: 16px;
        /* height: 200px; */
      }

      body {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .img-container {
        max-width: 760px;
      }
      .img-container img {
        max-width: 100%
      }
            .row {
        display: flex;
        gap: 1em;
        width: 760px;
      }
      .row textarea {
        flex: 1;
      }
      .row .col {
        width: 80px;
        display: flex;
        flex-direction: column;
        gap: 0.5em;
      }

      .container {
        width: 760px;
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
      .container .refresh {
        position: absolute;
        right: 0;
        top: 0;
        padding: 4px 8px;
      }
      .btn {
        font-size: 16px;
        padding: 4px 2px;
        border: none;
        border-radius: 4px;
        font-weight: bolder;
        cursor: pointer;
        color: rgb(62, 59, 59);
        background-color: #b3b3cc
      }
      .img-type {
        font-size: 16px;
        padding: 4px 6px;
        border: none;
        border-radius: 4px;
        font-weight: bolder;
        color: #ffffff
      }
      .cp {
        background-color: #f07878;
      }
      .cpd {
        background-color:   #a7d797;
      }
      .cpdd {
        background-color: #74a7f9;
      }
    </style>
  </head>

  <body class="with-footer">
    <div class="container">
    <h1 align="center"><a href="https://github.com/breezedeus/pix2text">Pix2Text</a>: a free tool like Mathpix</h1>
    <h2 align="center">Screenshot</h2>
    <div class="img-container">
    """
    html_str += fr'<img src="{newest_fp}" />' + '\n </div>'
    html_str += """
    <button class="refresh btn" onClick="document.location.reload()">Refresh</button>
    </div>
    <hr />

    <h2 align="center">Results</h2>
    """

    html_str += r'<strong>Image Type: </strong>' \
                fr'<div class="img-type" style="background:{COLOR_MAPPING[image_type]}"> ' \
                fr'{image_type} </div>' + '\n'

    if image_type in ('formula', 'hybrid'):
        html_str += '<div id="latex"></div>'

    html_str += """

    <hr>

    <div class="row">

    """

    html_str += '\n<textarea id="textarea" rows="10">' + fr"{text}" + '</textarea>'

    html_str += """
          <div class="col">
        <button class="btn" type="button" onclick="copyTex()">Copy</button>
        <button class="btn" type="button" onclick="copyTexD()">$Copy$</button>
        <button class="btn" type="button" onclick="copyTexDD()">$$Copy$$</button>
      </div>
    </div>


    <script type="text/javascript">
      const textarea = document.querySelector("#textarea");
      const render = () => {
        var elt = document.createElement("div");
        elt.id = "latex";
        try {
          katex.render(textarea.value, elt, { displayMode: "display" });
        } catch (err) {
          console.error(err);
        }
        document.body.replaceChild(elt, document.querySelector("#latex"));
      };

      textarea.onblur = render;
      render();
    </script>

    <script type="text/javascript">
      function copy(text) {
        navigator.permissions
          .query({ name: "clipboard-write" })
          .then((result) => {
            if (result.state == "granted" || result.state == "prompt") {
              navigator.clipboard.writeText(text).then(() => {
                /* do nothing */
              });
            }
          });
      }
      function copyTex() {
        const texText = document.querySelector("#textarea").textContent;
        copy(texText);
      }
      function copyTexD() {
        const texText = document.querySelector("#textarea").textContent;
        copy(`$${texText}$`);
      }
      function copyTexDD() {
        const texText = document.querySelector("#textarea").textContent;
        copy(`$$${texText}$$`);
      }
    </script>

    <script>
      (async function callApi() {
        const resp = await fetch('/api/ocr')
        const data = await resp.json()
        console.log(data)
      })()
    </script>
  </body>
</html>
    """

    with open(out_html_fp, 'w', encoding='utf-8') as f:
        f.writelines(html_str)