85 lines
1.9 KiB
TypeScript
85 lines
1.9 KiB
TypeScript
import assert from 'node:assert/strict'
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import test from 'node:test'
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import type { FieldResult } from '../src/types'
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import { getOverlayRect, getScrollTarget, getTargetZoom } from '../src/components/pdfPreviewMath'
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const field: FieldResult = {
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id: 'field-1',
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page: 1,
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text: '食品名称：天问礼品粽',
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font_name: 'Mock Font',
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font_size_pt: 12,
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font_height_mm: 4,
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x0_pt: 100,
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top_pt: 80,
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x1_pt: 180,
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bottom_pt: 116,
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normalized_text: '食品名称天问礼品粽',
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validation_status: 'matched',
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validation_reason: 'matched',
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matched_excerpt: '食品名称：天问礼品粽',
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}
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test('getOverlayRect keeps tiny fields visible without drifting away from center', () => {
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const rect = getOverlayRect(
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{
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...field,
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x1_pt: 101,
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bottom_pt: 81,
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},
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0.4,
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0.4,
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)
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assert.equal(rect.width, 4)
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assert.equal(rect.height, 4)
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assert.equal(rect.strokeWidth, 1)
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assert.equal(rect.left, 38.2)
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assert.equal(rect.top, 30.2)
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})
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test('getTargetZoom caps focus zoom and keeps normal fit as the floor', () => {
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assert.equal(
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getTargetZoom(field, { width: 1200, height: 900 }, 0.5),
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2.8,
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)
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assert.equal(
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getTargetZoom(field, { width: 0, height: 900 }, 0.5),
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1,
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)
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})
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test('getScrollTarget centers the active field and clamps to scroll bounds', () => {
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const rect = getOverlayRect(field, 2, 2)
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const centered = getScrollTarget({
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containerWidth: 800,
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containerHeight: 600,
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scrollWidth: 2200,
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scrollHeight: 1800,
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pageOffsetLeft: 260,
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pageOffsetTop: 420,
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rect,
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})
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assert.deepEqual(centered, {
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left: 140,
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top: 316,
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})
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const clamped = getScrollTarget({
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containerWidth: 800,
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containerHeight: 600,
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scrollWidth: 1200,
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scrollHeight: 900,
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pageOffsetLeft: 20,
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pageOffsetTop: 30,
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rect,
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})
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assert.deepEqual(clamped, {
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left: 0,
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top: 0,
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})
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})
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