Steffen Becker
3b24b14470
Two endpoints rather than a box: no text, no fill, and the diagonal of the frame with `flipV` picking which one. The three kinds share their preset names, since the heads a file declares are what tell them apart. ODF gives a line its own element and its heads a named marker, which needs the draw: prefix declared in styles.xml — undeclared, the file does not parse at all. Word keeps the frame and flips it.
45 lines
2.0 KiB
TypeScript
45 lines
2.0 KiB
TypeScript
// The line kinds: geometry across the frame, and which kind a file's arrow heads make.
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import { describe, it, expect } from 'vitest';
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import { linePaths, lineKindFor, isLineKind, arrowHeadPx, arrowHeadCm, LINE_KINDS, shapeFromPrst, shapeFromOdfType } from '../../src/lib/utils/shapes';
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describe('line shapes', () => {
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it('runs across the frame, and flips to the other diagonal', () => {
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expect(linePaths('line', 200, 60, false, 10)?.line).toBe('M 0,0 L 200,60');
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expect(linePaths('line', 200, 60, true, 10)?.line).toBe('M 0,60 L 200,0');
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expect(linePaths('textbox', 200, 60, false, 10)).toBeNull();
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});
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it('gives a head to the ends the kind names', () => {
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expect(linePaths('line', 100, 0, false, 10)?.heads).toHaveLength(0);
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expect(linePaths('lineArrow', 100, 0, false, 10)?.heads).toHaveLength(1);
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expect(linePaths('lineDoubleArrow', 100, 0, false, 10)?.heads).toHaveLength(2);
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});
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it('keeps the head inside a line shorter than it', () => {
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const short = linePaths('lineArrow', 10, 0, false, 40)?.heads[0] ?? '';
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// Capped at half the line, so the head never reaches past the far end.
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expect(short).toContain('M 10,0');
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expect(short).toContain('5,');
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});
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it('reads a file\'s heads back as the kind they make', () => {
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expect(lineKindFor(false, false)).toBe('line');
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expect(lineKindFor(false, true)).toBe('lineArrow');
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expect(lineKindFor(true, false)).toBe('lineArrow');
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expect(lineKindFor(true, true)).toBe('lineDoubleArrow');
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expect(LINE_KINDS.every(isLineKind)).toBe(true);
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});
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it('resolves both formats\' names to the bare line, the heads deciding the rest', () => {
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expect(shapeFromPrst('line')).toBe('line');
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expect(shapeFromPrst('straightConnector1')).toBe('line');
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expect(shapeFromOdfType('line')).toBe('line');
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});
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it('scales the head with the pen, with a floor', () => {
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expect(arrowHeadPx(0.25)).toBe(8);
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expect(arrowHeadPx(3)).toBeCloseTo(20, 5);
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expect(arrowHeadCm(3)).toBeCloseTo(0.37, 2);
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});
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});
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