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Adding specs and some refactoring for the Path#lineTo method

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This commit is contained in:
Jeff Avallone 2018-02-18 15:46:17 -05:00
parent 381df8bf93
commit bb37848265
3 changed files with 50 additions and 8 deletions
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2
src/components/SVG/__snapshots__/VerticalLayout.test.js.snap
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@ -75,7 +75,7 @@ exports[`VerticalLayout rendering with connectors 1`] = `
withConnectors={true} withConnectors={true}
> >
<path <path
d="M10,60q0,-10 10,-10H20M130,60q0,-10 -10,-10H120M0,160c15,0 10,0 20,0H20M140,160c-15,0 -10,0 -20,0H120M10,260q0,10 10,10H20M130,260q0,10 -10,10H120M0,160q10,0 10,-10V60M140,160q-10,0 -10,-10V60M0,160q10,0 10,10V260M140,160q-10,0 -10,10V260" d="M10,60q0,-10 10,-10M130,60q0,-10 -10,-10M0,160c15,0 10,0 20,0M140,160c-15,0 -10,0 -20,0M10,260q0,10 10,10M130,260q0,10 -10,10M0,160q10,0 10,-10V60M140,160q-10,0 -10,-10V60M0,160q10,0 10,10V260M140,160q-10,0 -10,10V260"
style={ style={
Object { Object {
"fillOpacity": 0, "fillOpacity": 0,

29
src/components/SVG/path.js
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@ -26,22 +26,37 @@ class Path {
} }
lineTo({ x, y, relative }) { lineTo({ x, y, relative }) {
relative = relative === undefined ? this.relative : relative; if (relative === undefined) {
if (x !== undefined && (y === undefined || y === this.currentPosition.y)) { relative = this.relative;
}
if (x === undefined) {
x = relative ? 0 : this.currentPosition.x;
}
if (y === undefined) {
y = relative ? 0 : this.currentPosition.y;
}
if ((relative && x === 0 && y === 0)
|| (!relative && x === this.currentPosition.x && y === this.currentPosition.y)) {
return this;
}
if (y === (relative ? 0 : this.currentPosition.y)) {
const command = relative ? 'h' : 'H'; const command = relative ? 'h' : 'H';
this.pathParts.push(`${command}${x}`); this.pathParts.push(`${command}${x}`);
this.currentPosition.x = relative ? this.currentPosition.x + x : x; } else if (x === (relative ? 0 : this.currentPosition.x)) {
} else if (y !== undefined && (x === undefined || x === this.currentPosition.x)) {
const command = relative ? 'v' : 'V'; const command = relative ? 'v' : 'V';
this.pathParts.push(`${command}${y}`); this.pathParts.push(`${command}${y}`);
this.currentPosition.y = relative ? this.currentPosition.y + y : y;
} else { } else {
const command = relative ? 'l' : 'L'; const command = relative ? 'l' : 'L';
this.pathParts.push(`${command}${x},${y}`); this.pathParts.push(`${command}${x},${y}`);
this.currentPosition.x = relative ? this.currentPosition.x + x : x;
this.currentPosition.y = relative ? this.currentPosition.y + y : y;
} }
this.currentPosition = {
x: relative ? this.currentPosition.x + x : x,
y: relative ? this.currentPosition.y + y : y
};
return this; return this;
} }

27
src/components/SVG/path.test.js Normal file
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@ -0,0 +1,27 @@
import Path from './path';
describe('Path', () => {
[
// lineTo
[ 'lineTo', { x: 5, y: 1 }, 'L5,1' ],
[ 'lineTo', { x: 5, y: 0 }, 'H5' ],
[ 'lineTo', { x: 0, y: 1 }, 'V1' ],
[ 'lineTo', { x: 0, y: 0 }, '' ],
[ 'lineTo', { x: 5 }, 'H5' ],
[ 'lineTo', { y: 1 }, 'V1' ],
[ 'lineTo', {}, '' ],
[ 'lineTo', { x: 5, y: 1, relative: true }, 'l5,1' ],
[ 'lineTo', { x: 5, y: 0, relative: true }, 'h5' ],
[ 'lineTo', { x: 0, y: 1, relative: true }, 'v1' ],
[ 'lineTo', { x: 0, y: 0, relative: true }, '' ],
[ 'lineTo', { x: 5, relative: true }, 'h5' ],
[ 'lineTo', { y: 1, relative: true }, 'v1' ],
[ 'lineTo', { relative: true }, '' ],
].forEach(([ cmd, args, str ], i) => (
test(`case #${ i }`, () => {
const path = new Path();
path[cmd](args);
expect(path.toString()).toEqual(str);
})
));
});