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fix: render new Study Load layout (GROUP-first, student row, stacked schedule) in PDF

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adrianbonpin
2026-08-18 19:41:00 +08:00
parent 1537881ebc
commit 631ff4e9d2
1 changed files with 115 additions and 51 deletions
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pdf.js
+115 -51
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@@ -29,6 +29,21 @@
return lines.length ? lines : ['']; return lines.length ? lines : [''];
} }
// Wraps multi-line text (segments split on \n) into wrapped lines.
function wrapLines(text, font, size, maxWidth) {
const out = [];
String(text == null ? '' : text).split(/\n/).forEach((seg) => {
out.push(...wrapText(seg, font, size, maxWidth));
});
return out.length ? out : [''];
}
// Builds a Letter-size PDF replicating the official ISMIS Study Load layout:
// title block (STUDENT'S STUDY LOAD, semester, date range, date enrolled),
// a student info row (ID, name, program, Year Level), the course table
// (GROUP, COURSE, COURSE DESCRIPTION, TEACHER, UNITS, NOTE), and a footer
// (total units, printed-by). NOTE is the status; UNITS/NOTE are right-aligned;
// schedule is stacked under the course description.
async function buildStudyLoadPdf(data) { async function buildStudyLoadPdf(data) {
const PDFLib = getPDFLib(); const PDFLib = getPDFLib();
const { PDFDocument, StandardFonts, rgb } = PDFLib; const { PDFDocument, StandardFonts, rgb } = PDFLib;
@@ -39,6 +54,7 @@
let page = doc.addPage([612, 792]); // Letter let page = doc.addPage([612, 792]); // Letter
const font = doc.embedStandardFont(StandardFonts.Helvetica); const font = doc.embedStandardFont(StandardFonts.Helvetica);
const bold = doc.embedStandardFont(StandardFonts.HelveticaBold); const bold = doc.embedStandardFont(StandardFonts.HelveticaBold);
const italic = doc.embedStandardFont(StandardFonts.HelveticaOblique);
const margin = 50; const margin = 50;
const contentWidth = 612 - margin * 2; const contentWidth = 612 - margin * 2;
let y = 792 - 50; let y = 792 - 50;
@@ -46,98 +62,146 @@
const black = rgb(0, 0, 0); const black = rgb(0, 0, 0);
const gray = rgb(0.3, 0.3, 0.3); const gray = rgb(0.3, 0.3, 0.3);
function center(text, size, fontToUse, dy) { function center(text, size, f, dy) {
const w = fontToUse.widthOfTextAtSize(text, size); const w = f.widthOfTextAtSize(text, size);
page.drawText(text, { x: (612 - w) / 2, y: y, size, font: fontToUse, color: black }); page.drawText(text, { x: (612 - w) / 2, y, size, font: f, color: black });
y -= dy; y -= dy;
} }
function left(text, size, fontToUse, x, dy) { function left(text, size, f, x, dy) {
page.drawText(text, { x, y, size, font: fontToUse, color: black }); page.drawText(text, { x, y, size, font: f, color: black });
y -= dy; y -= dy;
} }
function hline(x1, x2, atY) {
page.drawRectangle({ x: x1, y: atY, width: x2 - x1, height: 0.75, color: black });
}
// Header // ---- Header ----
center(header.semester || '', 14, bold, 20); center("STUDENT'S STUDY LOAD", 9.5, bold, 18);
center("STUDENT'S STUDY LOAD", 16, bold, 24); if (header.semester) center(header.semester, 9, font, 15);
center(header.dateRange || '', 11, font, 18); if (header.dateRange) center(header.dateRange, 9, font, 15);
if (header.dateEnrolled) left('Date Enrolled: ' + header.dateEnrolled, 10, font, margin, 16); if (header.dateEnrolled) left('Date Enrolled: ' + header.dateEnrolled, 8, italic, margin, 13);
y -= 6;
if (header.studentId) left('Student ID: ' + header.studentId, 10, font, margin, 14);
if (header.fullName) left('Name: ' + header.fullName, 10, font, margin, 14);
if (header.program) left('Program: ' + header.program, 10, font, margin, 14);
if (header.yearLevel) left('Year Level: ' + header.yearLevel, 10, font, margin, 14);
y -= 10;
// Table columns: NOTE, UNITS, TEACHER, COURSE DESCRIPTION, COURSE, GROUP // Student info row: ID (bold), name, program, "Year Level: N"
const studentParts = [];
if (header.studentId) studentParts.push({ text: header.studentId, f: bold });
if (header.fullName) studentParts.push({ text: header.fullName, f: font });
if (header.program) studentParts.push({ text: header.program, f: font });
if (header.yearLevel) studentParts.push({ text: 'Year Level: ' + header.yearLevel, f: font });
if (studentParts.length) {
let sx = margin;
for (const part of studentParts) {
const w = part.f.widthOfTextAtSize(part.text, 9);
page.drawText(part.text, { x: sx, y, size: 9, font: part.f, color: black });
sx += w + 18;
}
y -= 16;
}
// ---- Table: GROUP, COURSE, COURSE DESCRIPTION, TEACHER, UNITS, NOTE ----
const cols = [ const cols = [
{ key: 'status', label: 'NOTE', x: margin, w: 50 }, { key: 'group', label: 'GROUP', x: margin, w: 26, align: 'left' },
{ key: 'units', label: 'UNITS', x: margin + 50, w: 45 }, { key: 'courseCode', label: 'COURSE', x: margin + 26, w: 46, align: 'left' },
{ key: 'teacher', label: 'TEACHER', x: margin + 95, w: 110 }, { key: 'description', label: 'COURSE DESCRIPTION', x: margin + 72, w: 189, align: 'left' },
{ key: 'description', label: 'COURSE DESCRIPTION', x: margin + 205, w: 150 }, { key: 'teacher', label: 'TEACHER', x: margin + 261, w: 123, align: 'left' },
{ key: 'courseCode', label: 'COURSE', x: margin + 355, w: 70 }, { key: 'units', label: 'UNITS', x: margin + 384, w: 31, align: 'right' },
{ key: 'groupSchedule', label: 'GROUP', x: margin + 425, w: 87 } { key: 'status', label: 'NOTE', x: margin + 415, w: 97, align: 'right' }
]; ];
const cellSize = 9; const cellSize = 8;
const headerSize = 9; const headerSize = 8;
const lineH = 10;
function rowLines(cells) {
return cols.map((c) => {
let lines;
if (c.key === 'description') {
lines = wrapLines(cells.description, font, cellSize, c.w - 6);
const sched = String(cells.schedule || '');
if (sched) lines.push(...wrapText(sched, font, cellSize, c.w - 6));
} else {
lines = wrapLines(cells[c.key], font, cellSize, c.w - 6);
}
return lines;
});
}
function drawRow(cells, isHeader) { function drawRow(cells, isHeader) {
const f = isHeader ? bold : font; const f = isHeader ? bold : font;
const size = isHeader ? headerSize : cellSize; const size = isHeader ? headerSize : cellSize;
const linesPerCol = cols.map((c) => wrapText(cells[c.key] || '', f, size, c.w - 6)); const linesPerCol = rowLines(cells);
const rowHeight = Math.max(...linesPerCol.map((l) => l.length)) * 11 + 8; const rowHeight = Math.max(...linesPerCol.map((l) => l.length)) * lineH + 8;
if (!isHeader && y - rowHeight < 50) {
// Row doesn't fit on the current page: start a new page and re-draw the header. if (y - rowHeight < 50) {
page = doc.addPage([612, 792]); page = doc.addPage([612, 792]);
y = 792 - 50; y = 792 - 50;
drawHeaderRow(); drawHeaderRow();
} }
if (isHeader) { if (isHeader) {
page.drawRectangle({ x: margin, y: y - rowHeight, width: contentWidth, height: rowHeight, color: rgb(0.85, 0.9, 0.95) }); // top line above the header row
} hline(margin, margin + contentWidth, y);
page.drawRectangle({ x: margin, y: y - rowHeight, width: contentWidth, height: rowHeight, borderColor: black, borderWidth: 0.5 });
for (const c of cols) {
page.drawRectangle({ x: c.x, y: y - rowHeight, width: c.w, height: rowHeight, borderColor: black, borderWidth: 0.5 });
} }
for (let i = 0; i < cols.length; i++) { for (let i = 0; i < cols.length; i++) {
const c = cols[i]; const c = cols[i];
const lines = linesPerCol[i]; const lines = linesPerCol[i];
let ty = y - 10; let ty = y - 9;
for (const line of lines) { for (const line of lines) {
page.drawText(line, { x: c.x + 3, y: ty, size, font: f, color: black }); if (c.align === 'right') {
ty -= 11; const w = f.widthOfTextAtSize(line, size);
page.drawText(line, { x: c.x + c.w - 3 - w, y: ty, size, font: f, color: black });
} else {
page.drawText(line, { x: c.x + 3, y: ty, size, font: f, color: black });
}
ty -= lineH;
} }
} }
y -= rowHeight; y -= rowHeight;
if (isHeader) {
// line below the header row
hline(margin, margin + contentWidth, y);
}
return true; return true;
} }
function drawHeaderRow() { function drawHeaderRow() {
const headerCells = {}; const cells = {};
cols.forEach((c) => { headerCells[c.key] = c.label; }); cols.forEach((c) => { cells[c.key] = c.label; });
drawRow(headerCells, true); drawRow(cells, true);
} }
drawHeaderRow(); drawHeaderRow();
for (const course of courses) { for (const course of courses) {
const cells = { const cells = {
status: course.status, group: course.group,
units: course.units,
teacher: course.teacher,
description: course.description,
courseCode: course.courseCode, courseCode: course.courseCode,
groupSchedule: (course.group ? course.group + ' ' : '') + (course.schedule || '') description: course.description,
schedule: course.schedule,
teacher: course.teacher,
units: course.units,
status: course.status
}; };
if (!drawRow(cells, false)) break; drawRow(cells, false);
} }
y -= 12; // ---- Footer ----
if (data.totalUnits) { if (y < 90) {
page.drawText('Total Units: ' + data.totalUnits, { x: margin, y: y, size: 11, font: bold, color: black }); page = doc.addPage([612, 792]);
y -= 16; y = 792 - 50;
} }
y -= 8;
if (data.totalUnits) {
const w = bold.widthOfTextAtSize(data.totalUnits, 9);
page.drawText(data.totalUnits, { x: margin + contentWidth - w, y, size: 9, font: bold, color: black });
y -= 14;
}
hline(margin, margin + contentWidth, y);
y -= 12;
const printedBy = 'Printed by: ' + (header.studentId || '') + ' on ' + new Date().toLocaleDateString(); const printedBy = 'Printed by: ' + (header.studentId || '') + ' on ' + new Date().toLocaleDateString();
page.drawText(printedBy, { x: margin, y: y, size: 9, font, color: gray }); const pw = font.widthOfTextAtSize(printedBy, 8);
page.drawText(printedBy, { x: margin + contentWidth - pw, y, size: 8, font, color: gray });
return doc.save(); // returns Promise<Uint8Array> return doc.save(); // returns Promise<Uint8Array>
} }