Fit artboard to selection

Fit artboard to selection.sketchplugin

var currentArtboard = [[[doc currentPage] artboards] firstObject];

var layers = selection;

var bounds = getBoundsForLayers(layers);


for (var i = 0, len = [layers count]; i < len; ++i) {
    var layer = [layers objectAtIndex:i];

    [[layer absoluteRect] setRulerX:[[layer absoluteRect] rulerX] - bounds.rulerX];
    [[layer absoluteRect] setRulerY:[[layer absoluteRect] rulerY] - bounds.rulerY];
}

var newFrame = [MSRect rectWithX:bounds.left - bounds.rulerX y:bounds.top - bounds.rulerY width:bounds.width height:bounds.height];
[currentArtboard setFrame:newFrame];

function layerBounds(layer) {
  var layerRect = [layer absoluteRect];
  var left = [layerRect x];
  var top = [layerRect y];
  var width = [layerRect width];
  var height = [layerRect height];
  var rulerX = [[layer absoluteRect] rulerX];
  var rulerY = [[layer absoluteRect] rulerY];

  return {
    left: left,
    top: top,
    right: left + width,
    bottom: top + height,
    width: width,
    height: height,
    rulerX: rulerX,
    rulerY: rulerY
  };
}

function extendBounds(original, extension) {
  var top = Math.min(original.top, extension.top);
  var left = Math.min(original.left, extension.left);
  var rulerX = Math.min(original.rulerX, extension.rulerX);
  var rulerY = Math.min(original.rulerY, extension.rulerY);
  var bottom = Math.max(original.bottom, extension.bottom);
  var right = Math.max(original.right, extension.right);
  var width = right - left;
  var height = bottom - top;

  return {
    left: left,
    top: top,
    right: left + width,
    bottom: top + height,
    width: width,
    height: height,
    rulerX: rulerX,
    rulerY: rulerY
  };
}

function getBoundsForLayers(layers) {
  var bounds = layerBounds(layers[0]);

  for (var i = 1, len = [layers count]; i < len; ++i) {
      var layer = [layers objectAtIndex:i];
      bounds = extendBounds(bounds, layerBounds(layer));
  }

  return bounds;
}