TanTan
2a69b23b47
Dev Build / cleanup (push) Canceled after 0s
Dev Build / typecheck (push) Canceled after 0s
Dev Build / build (linux-arm64, ubuntu-24.04-arm, linux-arm64) (push) Canceled after 0s
Dev Build / build (linux-x64, ubuntu-latest, linux-x64) (push) Canceled after 0s
Dev Build / build (win-x64, windows-latest, win32-x64) (push) Canceled after 0s
Dev Build / dispatch-dev-docker (push) Canceled after 0s
51 lines
2.1 KiB
Plaintext
51 lines
2.1 KiB
Plaintext
function buildProjectionTransform(delta, treeScale, latestTransform) {
|
|
let transform = "";
|
|
/**
|
|
* The translations we use to calculate are always relative to the viewport coordinate space.
|
|
* But when we apply scales, we also scale the coordinate space of an element and its children.
|
|
* For instance if we have a treeScale (the culmination of all parent scales) of 0.5 and we need
|
|
* to move an element 100 pixels, we actually need to move it 200 in within that scaled space.
|
|
*/
|
|
const xTranslate = delta.x.translate / treeScale.x;
|
|
const yTranslate = delta.y.translate / treeScale.y;
|
|
const zTranslate = latestTransform?.z || 0;
|
|
if (xTranslate || yTranslate || zTranslate) {
|
|
transform = `translate3d(${xTranslate}px, ${yTranslate}px, ${zTranslate}px) `;
|
|
}
|
|
/**
|
|
* Apply scale correction for the tree transform.
|
|
* This will apply scale to the screen-orientated axes.
|
|
*/
|
|
if (treeScale.x !== 1 || treeScale.y !== 1) {
|
|
transform += `scale(${1 / treeScale.x}, ${1 / treeScale.y}) `;
|
|
}
|
|
if (latestTransform) {
|
|
const { transformPerspective, rotate, rotateX, rotateY, skewX, skewY } = latestTransform;
|
|
if (transformPerspective)
|
|
transform = `perspective(${transformPerspective}px) ${transform}`;
|
|
if (rotate)
|
|
transform += `rotate(${rotate}deg) `;
|
|
if (rotateX)
|
|
transform += `rotateX(${rotateX}deg) `;
|
|
if (rotateY)
|
|
transform += `rotateY(${rotateY}deg) `;
|
|
if (skewX)
|
|
transform += `skewX(${skewX}deg) `;
|
|
if (skewY)
|
|
transform += `skewY(${skewY}deg) `;
|
|
}
|
|
/**
|
|
* Apply scale to match the size of the element to the size we want it.
|
|
* This will apply scale to the element-orientated axes.
|
|
*/
|
|
const elementScaleX = delta.x.scale * treeScale.x;
|
|
const elementScaleY = delta.y.scale * treeScale.y;
|
|
if (elementScaleX !== 1 || elementScaleY !== 1) {
|
|
transform += `scale(${elementScaleX}, ${elementScaleY})`;
|
|
}
|
|
return transform || "none";
|
|
}
|
|
|
|
export { buildProjectionTransform };
|
|
//# sourceMappingURL=transform.mjs.map
|