printmaker/dist/page.js

Generate PDF documents and from JavaScript objects

import { renderGuide } from './guides.js';
import { createLinkAnnotation, createNamedDest } from './pdf-annotations.js';
export function renderPage(page, doc) {
    page.pdfPage = doc.pdfDoc.addPage([page.size.width, page.size.height]);
    renderFrame(page.content, page);
    page.header && renderFrame(page.header, page);
    page.footer && renderFrame(page.footer, page);
}
export function renderFrame(frame, page, base = null) {
    var _a, _b, _c, _d;
    const { width, height } = frame;
    const topLeft = { x: frame.x + ((_a = base === null || base === void 0 ? void 0 : base.x) !== null && _a !== void 0 ? _a : 0), y: frame.y + ((_b = base === null || base === void 0 ? void 0 : base.y) !== null && _b !== void 0 ? _b : 0) };
    const bottomLeft = { x: topLeft.x, y: topLeft.y + height };
    renderGuide(page, Object.assign(Object.assign({}, tr(bottomLeft, page)), { width, height }), frame.type);
    (_c = frame.objects) === null || _c === void 0 ? void 0 : _c.forEach((object) => {
        if (object.type === 'text') {
            renderText(object, page, bottomLeft);
        }
        if (object.type === 'anchor') {
            renderAnchor(object, page, topLeft);
        }
        if (object.type === 'link') {
            renderLink(object, page, bottomLeft);
        }
        if (object.type === 'rect') {
            renderRect(object, page, topLeft);
        }
        if (object.type === 'line') {
            renderLine(object, page, topLeft);
        }
        if (object.type === 'polyline') {
            renderPolyline(object, page, topLeft);
        }
        if (object.type === 'image') {
            renderImage(object, page, topLeft);
        }
    });
    (_d = frame.children) === null || _d === void 0 ? void 0 : _d.forEach((frame) => {
        renderFrame(frame, page, topLeft);
    });
}
function renderText(el, page, base) {
    const { x, y } = tr({ x: el.x + base.x, y: el.y + base.y }, page);
    const options = { x, y, size: el.fontSize, font: el.font };
    if (el.color)
        options.color = el.color;
    page.pdfPage.drawText(el.text, options);
}
function renderAnchor(el, page, base) {
    const { x, y } = tr({ x: el.x + base.x, y: el.y + base.y }, page);
    createNamedDest(page.pdfPage, el.name, { x, y });
}
function renderLink(el, page, base) {
    const { x, y } = tr({ x: el.x + base.x, y: el.y + base.y }, page);
    const { width, height, url } = el;
    createLinkAnnotation(page.pdfPage, { x, y, width, height }, url);
}
function renderRect(rect, page, base) {
    const { x, y } = tr({ x: rect.x + base.x, y: rect.y + base.y + rect.height }, page);
    const { width, height } = rect;
    const options = { x, y, width, height };
    if ('strokeColor' in rect)
        options.borderColor = rect.strokeColor;
    if ('strokeWidth' in rect)
        options.borderWidth = rect.strokeWidth;
    if ('fillColor' in rect)
        options.color = rect.fillColor;
    page.pdfPage.drawRectangle(options);
}
function renderLine(line, page, base) {
    const options = {
        start: tr({ x: line.x1 + base.x, y: line.y1 + base.y }, page),
        end: tr({ x: line.x2 + base.x, y: line.y2 + base.y }, page),
    };
    if ('strokeWidth' in line)
        options.thickness = line.strokeWidth;
    if ('strokeColor' in line)
        options.color = line.strokeColor;
    page.pdfPage.drawLine(options);
}
function renderPolyline(polyline, page, base) {
    const path = createSvgPath(polyline.points, polyline.closePath);
    const { x, y } = tr(base, page);
    const options = { x, y };
    if ('strokeColor' in polyline)
        options.borderColor = polyline.strokeColor;
    if ('strokeWidth' in polyline)
        options.borderWidth = polyline.strokeWidth;
    if ('fillColor' in polyline)
        options.color = polyline.fillColor;
    page.pdfPage.drawSvgPath(path, options);
}
function renderImage(object, page, base) {
    const { x, y } = tr({ x: object.x + base.x, y: object.y + base.y + object.height }, page);
    const { width, height } = object;
    const options = { x, y, width, height };
    page.pdfPage.drawImage(object.image, options);
}
function createSvgPath(points, closePath = false) {
    const z = closePath ? ' Z' : '';
    return points.reduce((s, p) => (s ? `${s} L` : `M`) + `${p.x},${p.y}`, '') + z;
}
function tr(pos, page) {
    return { x: pos.x, y: page.size.height - pos.y };
}
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