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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Record Mouse Coordinates</title>
<style>
.required { color: red; }
.hidden { display: none; }
#output_file { border: 1px solid #000; }
.button { width: 90px; margin: 5px; }
</style>
</head>
<body>
<h2>Input record XY mouse coordinates on an uploaded image:</h2>
<form id="inputForm" method="post" enctype="multipart/form-data">
<table>
<tr>
<td>Upload image <span class="required">*</span>:<br />Max 500 KB.</td>
<td><input type="file" name="inputfile" id="inputfile" size="45" required /></td>
</tr>
<tr>
<td>Please enter the Access Code as displayed below <span class="required">*</span>:</td>
<td><img src="https://www.mobilefish.com/php/secureimage/createimage.php" alt="Access code" /></td>
<td><input type="text" name="accesscode" id="accesscode" size="7" maxlength="3" required /></td>
</tr>
<tr>
<td colspan="2"><span class="required">* = required</span></td>
<td><input type="submit" value="Upload image" /></td>
</tr>
<tr>
<td>Mouse coordinate:</td>
<td>
X-coord: <input name="cssxXval" id="cssxXval" value="0" size="7" maxlength="4" readonly /> px
Y-coord: <input name="cssxYval" id="cssxYval" value="0" size="7" maxlength="4" readonly /> px
</td>
</tr>
<tr>
<td colspan="3">
<canvas id="output_file" width="500" height="500"></canvas>
</td>
</tr>
<tr>
<td colspan="2">Image width = <span id="cssxNewImageWidth">0</span> px<br />
Image height = <span id="cssxNewImageHeight">0</span> px<br />
Number of coordinates = <span id="cssxTotalCoordinates">0</span>
</td>
</tr>
<tr>
<td>Recorded coordinates:</td>
<td colspan="2">
<select name="cssxCoordinates" id="cssxCoordinates" size="10" style="width: 320px;">
<option value="-1"></option>
</select>
</td>
</tr>
<tr>
<td>Change the recorded coordinates:</td>
<td colspan="2">
X-coord: <input name="cssxXvalSelect" id="cssxXvalSelect" size="7" maxlength="4" />
Y-coord: <input name="cssxYvalSelect" id="cssxYvalSelect" size="7" maxlength="4" />
</td>
</tr>
<tr>
<td colspan="3">
<input type="button" value="Add" class="button" onclick="jsxAdd()" />
<input type="button" value="Change" class="button" onclick="jsxChange()" />
<input type="button" value="Delete" class="button" onclick="jsxDelete()" />
<input type="button" value="Delete all coordinates" class="button" onclick="jsxDeleteAll()" />
</td>
</tr>
</table>
</form>
<script>
const canvas = document.getElementById('output_file');
const ctx = canvas.getContext('2d');
let coordinates = [];
document.getElementById('inputfile').addEventListener('change', loadImage);
function loadImage(event) {
const file = event.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = function(e) {
const img = new Image();
img.onload = function() {
canvas.width = img.width;
canvas.height = img.height;
ctx.drawImage(img, 0, 0);
document.getElementById('cssxNewImageWidth').textContent = img.width;
document.getElementById('cssxNewImageHeight').textContent = img.height;
};
img.src = e.target.result;
};
reader.readAsDataURL(file);
}
}
canvas.addEventListener('mousemove', function(event) {
const rect = canvas.getBoundingClientRect();
const x = event.clientX - rect.left;
const y = event.clientY - rect.top;
document.getElementById('cssxXval').value = x;
document.getElementById('cssxYval').value = y;
});
canvas.addEventListener('mousedown', function(event) {
const rect = canvas.getBoundingClientRect();
const x = event.clientX - rect.left;
const y = event.clientY - rect.top;
coordinates.push({ x, y });
updateCoordinatesList();
});
function updateCoordinatesList() {
const select = document.getElementById('cssxCoordinates');
select.innerHTML = '';
coordinates.forEach((coord, index) => {
const option = document.createElement('option');
option.value = index;
option.textContent = `(${coord.x}, ${coord.y})`;
select.appendChild(option);
});
document.getElementById('cssxTotalCoordinates').textContent = coordinates.length;
}
function jsxAdd() {
const x = parseInt(document.getElementById('cssxXvalSelect').value);
const y = parseInt(document.getElementById('cssxYvalSelect').value);
if (!isNaN(x) && !isNaN(y)) {
coordinates.push({ x, y });
updateCoordinatesList();
}
}
function jsxChange() {
const select = document.getElementById('cssxCoordinates');
const index = select.value;
if (index >= 0) {
const x = parseInt(document.getElementById('cssxXvalSelect').value);
const y = parseInt(document.getElementById('cssxYvalSelect').value);
if (!isNaN(x) && !isNaN(y)) {
coordinates[index] = { x, y };
updateCoordinatesList();
}
}
}
function jsxDelete() {
const select = document.getElementById('cssxCoordinates');
const index = select.value;
if (index >= 0) {
coordinates.splice(index, 1);
updateCoordinatesList();
}
}
function jsxDeleteAll() {
coordinates = [];
updateCoordinatesList();
}
</script>
</body>
</html>
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