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✨ Support for mirroring in layout

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This commit is contained in:
Joost De Cock 2019-01-15 18:15:15 +01:00
parent 202d41479c
commit 9cbe557448
1 changed files with 24 additions and 7 deletions
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31
src/pattern.js
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@ -410,17 +410,34 @@ Pattern.prototype.pack = function() {
this.height = this.settings.layout.height;
for (let partId of Object.keys(this.settings.layout.parts)) {
let transforms = this.settings.layout.parts[partId];
if (typeof transforms.translate === "object") {
// Moving
if (typeof transforms.move === "object") {
this.parts[partId].attributes.set(
"transform",
"translate(" +
transforms.translate.x +
", " +
transforms.translate.y +
")"
"translate(" + transforms.move.x + ", " + transforms.move.y + ")"
);
}
// FIXME: Implement support for rotate/flip transforms
// Mirrorring
let center = this.parts[partId].topLeft.shiftFractionTowards(
this.parts[partId].bottomRight,
0.5
);
let anchor = { x: 0, y: 0 };
if (transforms.flipX) {
let dx = anchor.x - center.x;
let transform = `translate(${center.x * -1}, ${center.y * -1})`;
transform += " scale(-1, 1)";
transform += ` translate(${center.x * -1 + 2 * dx}, ${center.y})`;
this.parts[partId].attributes.add("transform", transform);
}
if (transforms.flipY) {
let dy = anchor.y - center.y;
let transform = `translate(${center.x * -1}, ${center.y * -1})`;
transform += " scale(1, -1)";
transform += ` translate(${center.x}, ${center.y * -1 + 2 * dy})`;
this.parts[partId].attributes.add("transform", transform);
}
// FIXME: Implement support for rotate transforms
}
}