ESP-IDE-Electron-desktop-app/img_editor.html at main · mispacek/ESP-IDE-Electron-desktop-app · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style type="text/css" media="screen">
        *{
            margin: 0;
            box-sizing: border-box;
        }

        html, body{
            height: 100%;
        }

        body{
            background-color: rgb(255, 255, 255);
            display: flex;
            align-items: center;
            flex-direction: column;
        }

        .navbar{
            top: 0px;
            padding: 4px;
            margin-bottom: 1em;
            align-items: center;
            background-color: rgb(246, 246, 246);
            border-radius: 3px;}
        }

        .btn, input{
            padding: 0 1em;
        }

        input.sizeh {
            width: 102px;
            margin: 1px;
        }

        input.sizew {
            width: 74px;
            margin: 2px;
        }

        .container{
            --sizeh: 4;
            --sizew: 4;
            width: auto;
            display: grid;
            grid-template-columns: repeat(var(--sizeh), 1fr);
            grid-template-rows: repeat(var(--sizew), 1fr);
            gap: 2px;
            padding: 2px;
            background-color: rgb(50, 50, 50);
            border-radius: 3px;
        }

        .pixel{
            background-color: rgb(0, 0, 0);
            border-radius: 1px;
            height: 12px;
            width: 12px;
            user-drag: none;
            user-select: none;
        }
    </style>
    <title>Editor obrázků</title>
</head>
<body>
    <div class="navbar">
        <label for="sizeh">šířka:</label>
        <input type="number" name="sizeh" value="8" class="sizeh" maxlength="3" size="3">
        <br>
        <label for="sizeh">výška 8*:</label>
        <input type="number" name="sizew" value="1" class="sizew" maxlength="3" size="3">

        <br>
        <button class="btn" style="width: 65px; margin:4px;">Reset</button>
        <input type="button" value="Export" style="width: 65px; margin:4px;" onclick="export_img();">
        <br>
        <input type="button" value="Bílá" style="width: 65px;height:40px; margin:4px; background-color: #FFFFFF; color: black;" onclick="color = '#FFFFFF';">
        <input type="button" value="Černá" style="width: 65px;height:40px; margin:4px; background-color: #000000; color: white;" onclick="color = '#000000';">
        <br>
        <input type="button" value="Načíst obrázek z PC" onclick="code_upload_pc();" style="width: 142px; margin:4px;">
    </div>

    <div class="container">
    </div>
    <br>
    <input type="button" value="Kopírovat data do schránky" onclick="export_img();">
    <p id="demo"></p>

    <canvas id="canv" width="1024" height="1024" style="border:1px solid black;display: none;"></canvas>
    <input id="upload_file_input" type="file" style="position: absolute; top: 99%; left: 99%; width: 0px; height: 0px; padding: 0px"/>
    <img id="outputpng" class="" src="" style="display: none"/>
    <script>
        const container = document.querySelector('.container')
        const sizeElh = document.querySelector('.sizeh')
        let sizeh = sizeElh.value
        const sizeElw = document.querySelector('.sizew')
        let sizew = sizeElw.value*8
        var color = '#FFFFFF'
        const resetBtn = document.querySelector('.btn')

        let draw = false


        // return a promise
        function copyToClipboard(textToCopy) {
            // navigator clipboard api needs a secure context (https)
            if (navigator.clipboard && window.isSecureContext) {
                // navigator clipboard api method'
                return navigator.clipboard.writeText(textToCopy);
            } else {
                // text area method
                let textArea = document.createElement("textarea");
                textArea.value = textToCopy;
                // make the textarea out of viewport
                textArea.style.position = "fixed";
                textArea.style.left = "-999999px";
                textArea.style.top = "-999999px";
                document.body.appendChild(textArea);
                textArea.focus();
                textArea.select();
                return new Promise((res, rej) => {
                    // here the magic happens
                    document.execCommand('copy') ? res() : rej();
                    textArea.remove();
                });
            }
        }


        function populate(sizeh,sizew) {
          container.style.setProperty('--sizeh', sizeh)
          container.style.setProperty('--sizew', sizew)
          for (let i = 0; i < sizew; i++) {
              for (let ii = 0; ii < sizeh; ii++) {
                const div = document.createElement('div')
                div.setAttribute("id", "x" + ii + "y" + i);
                div.classList.add('pixel')

                div.addEventListener('mouseover', function(){
                    if(!draw) return
                    div.style.backgroundColor = color
                })
                div.addEventListener('touchmove', function(event){
                    var touch = event.touches[0];
                    var elm = document.elementFromPoint(touch.clientX, touch.clientY);

                    if (elm.className == "pixel")
                    {
                        elm.style.backgroundColor = color
                    }
                })
                div.addEventListener('mousedown', function(){
                    div.style.backgroundColor = color
                })
                container.appendChild(div)
              }
          }
        }

        function export_img()
        {
            var out_byte = 0;
            var out_data = [];
            var count = 0;
            var str_out = "bytearray(b'";
            for (let y = 0; y < sizew/8; y++) {
              for (let x = 0; x < sizeh; x++) {
                out_byte = 0;

                for (let i = 0; i < 8; i++) {
                    if (document.getElementById("x"+x+"y"+(y*8+i)).style.backgroundColor == 'rgb(255, 255, 255)')
                    {
                        out_byte = out_byte + Math.pow(2, i);
                    }
                    //console.log(document.getElementById("x"+x+"y"+(y*8+i)).style.backgroundColor);
                }

                if (out_byte < 16)
                {
                    str_out = str_out + String.fromCharCode(92, 120, 48) + out_byte.toString(16);
                }
                else
                {
                    str_out = str_out + String.fromCharCode(92, 120) + out_byte.toString(16);
                }

                //out_data[count] = out_byte;
                out_data[count] = String.fromCharCode(92, 120) + out_byte.toString(16);
                //console.log(out_data[count]);
                count++;
              }
            }

            //document.getElementById("demo").innerHTML = str_out + "'), " + sizeh + ", " + sizew;
            //navigator.clipboard.writeText(str_out + "'), " + sizeh + ", " + sizew);

            copyToClipboard(str_out + "'), " + sizeh + ", " + sizew)
            document.getElementById("demo").innerHTML = "Data uložena do schránky";
        }


        function import_img()
        {
            code_upload_pc();

            var canvas = document.getElementById('canv');

            // Create an image object
            var image = document.getElementById('outputpng');

            // When the image has finished loading, draw it to the canvas
            image.onload = function() {
                canvas.getContext('2d').drawImage(image, 0, 0);
                console.log(image.naturalHeight);
                console.log(image.naturalWidth);

                sizew = image.naturalHeight;
                sizeh = Math.ceil(image.naturalWidth/8)*8;

                sizeElh.value = image.naturalWidth;
                sizeElw.value = Math.ceil(image.naturalHeight/8);

                reset()


                for (let x = 0; x < image.naturalWidth; x++) {
                    for (let y = 0; y < image.naturalHeight; y++) {
                        var imageData = canvas.getContext('2d').getImageData(x, y, 1, 1);

                        // Get the red, green, blue, and alpha values of the pixel
                        var r = imageData.data[0];
                        var g = imageData.data[1];
                        var b = imageData.data[2];
                        var a = imageData.data[3];
                        var brightness = r+g+b / 3;

                        // Print the pixel color
                        //console.log('Pixel color: (' + r + ', ' + g + ', ' + b + ', ' + a + ')');

                        if (brightness < 128)
                        {
                            document.getElementById("x"+x+"y"+y).style.backgroundColor = 'rgb(255,255,255)';
                        }


                    }
                }

            }

        }


        window.addEventListener("mousedown", function(){
            draw = true
        })
        window.addEventListener("mouseup", function(){
            draw = false
        })

        window.addEventListener('touchstart', function(){
            draw = true
        })

        window.addEventListener('touchend', function(){
            draw = true
        })

        function reset(){
            container.innerHTML = '';
            document.getElementById("demo").innerHTML = '';
            populate(sizeh,sizew)
        }

        resetBtn.addEventListener('click', reset)

        sizeElh.addEventListener('keyup', function(){
            sizeh = sizeElh.value
            sizew = sizeElw.value*8
            reset()
        })

        sizeElw.addEventListener('keyup', function(){
            sizeh = sizeElh.value
            sizew = sizeElw.value*8
            reset()
        })

        sizeElh.addEventListener('change', function(){
            sizeh = sizeElh.value
            sizew = sizeElw.value*8
            reset()
        })

        sizeElw.addEventListener('change', function(){
            sizeh = sizeElh.value
            sizew = sizeElw.value*8
            reset()
        })


        function code_upload_pc() {
        document.getElementById('upload_file_input').addEventListener('change', readSingleFile, false);
        document.getElementById('upload_file_input').click();
        }


        function readSingleFile(e) {
          var file = e.target.files[0];
          if (!file) {
            return;
          }
          var reader = new FileReader();
          reader.onload = function(e) {
            var contents = e.target.result;
            try {
                console.log(contents);
                var output = document.getElementById('outputpng');
                output.src = contents;
                import_img();
              } catch (e) {
                alert(e);
              }
          };
          reader.readAsDataURL(file);
        }


        populate(sizeh,sizew)
    </script>
</body>
</html>