📝 View in Your Language:
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🧮 A/L ICT Math & Boolean Note Tool
Type Sinhala or English notes. Use $...$ for inline math, $$...$$ for display math, and logical symbols like $\overline{X}$ for X̅ (X bar).
📊 Live Preview
Your formatted math and Sinhala text will appear here...
`);
printWindow.document.close();
printWindow.print();
}// ✅ FIXED PDF EXPORT - Completely rewritten
async function downloadPDF() {
try {
const preview = document.getElementById('preview');
// Wait for MathJax to render completely
if (window.MathJax && MathJax.typesetPromise) {
await MathJax.typesetPromise([preview]);
await new Promise(resolve => setTimeout(resolve, 1000));
}const { jsPDF } = window.jspdf;
const pdf = new jsPDF('p', 'mm', 'a4');
// Create a clean container for PDF export
const pdfContainer = document.createElement('div');
pdfContainer.style.width = '190mm'; // A4 width minus margins
pdfContainer.style.padding = '20mm';
pdfContainer.style.background = 'white';
pdfContainer.style.fontFamily = '"Nirmala UI", "Iskoola Pota", Arial, sans-serif';
pdfContainer.style.fontSize = '12pt';
pdfContainer.style.lineHeight = '1.6';
pdfContainer.style.position = 'absolute';
pdfContainer.style.left = '-9999px';
pdfContainer.style.top = '0';
// Get clean content
let content = tinyMCEEditor.getContent();
// Clean content for PDF
content = content
.replace(/\\overline\{X\}/g, 'X̅')
.replace(/\\overline\{A\}/g, 'A̅')
.replace(/\\overline\{B\}/g, 'B̅')
.replace(/\\overline\{([^}]*)\}/g, '$1̅')
.replace(/\\cdot/g, '·')
.replace(/\$\$\\overline\{([^}]*)\}\$\$/g, '$1̅')
.replace(/\$\\overline\{([^}]*)\}\$/g, '$1̅')
.replace(/\$\$(.*?)\$\$/g, '$1')
.replace(/\$(.*?)\$/g, '$1')
.replace(/📗|🧩|🧮|📘|📏|📊|🔄|🧹|➕|📄|🧾|📋|🔌|📚|💾|📂|🖨️/g, '')
.replace(/
| /g, ' | ') .replace(/ | /g, ' | ');pdfContainer.innerHTML = `Student Math NotesGenerated on ${new Date().toLocaleDateString()} ${content}
`;
document.body.appendChild(pdfContainer);// Use html2canvas with simple configuration
const canvas = await html2canvas(pdfContainer, {
scale: 2,
useCORS: true,
logging: false,
backgroundColor: '#ffffff',
width: pdfContainer.scrollWidth,
height: pdfContainer.scrollHeight
});const imgData = canvas.toDataURL('image/png');
const pdfWidth = pdf.internal.pageSize.getWidth();
const pdfHeight = pdf.internal.pageSize.getHeight();
// Calculate image dimensions to fit PDF
const imgWidth = pdfWidth;
const imgHeight = (canvas.height * pdfWidth) / canvas.width;
// Add image to PDF
pdf.addImage(imgData, 'PNG', 0, 0, imgWidth, imgHeight);
// Clean up
document.body.removeChild(pdfContainer);
// Save PDF
pdf.save('Student_Math_Note.pdf');
} catch (error) {
console.error('PDF generation error:', error);
alert('Error generating PDF. Please try again with simpler content.');
}
}// ✅ FIXED WORD EXPORT - Simplified and reliable
function downloadWord() {
let content = tinyMCEEditor.getContent();
// Convert MathJax to Unicode
content = content
.replace(/\\overline\{X\}/g, 'X̅')
.replace(/\\overline\{A\}/g, 'A̅')
.replace(/\\overline\{B\}/g, 'B̅')
.replace(/\\overline\{([^}]*)\}/g, '$1̅')
.replace(/\\cdot/g, '·')
.replace(/\$\$\\overline\{([^}]*)\}\$\$/g, '$1̅')
.replace(/\$\\overline\{([^}]*)\}\$/g, '$1̅')
.replace(/\$\$(.*?)\$\$/g, '$1')
.replace(/\$(.*?)\$/g, '$1')
.replace(/📗|🧩|🧮|📘|📏|📊|🔄|🧹|➕|📄|🧾|📋|🔌|📚|💾|📂|🖨️/g, '')
.replace(/
|
|---|