all files / lib/draw/ BpmnRenderUtil.js

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import {
  every,
  some
} from 'min-dash';
 
import {
  componentsToPath
} from 'diagram-js/lib/util/RenderUtil';
 
 
// element utils //////////////////////
 
/**
 * Checks if eventDefinition of the given element matches with semantic type.
 *
 * @return {boolean} true if element is of the given semantic type
 */
export function isTypedEvent(event, eventDefinitionType, filter) {
 
  function matches(definition, filter) {
    return every(filter, function(val, key) {
 
      // we want a == conversion here, to be able to catch
      // undefined == false and friends
      /* jshint -W116 */
      return definition[key] == val;
    });
  }
 
  return some(event.eventDefinitions, function(definition) {
    return definition.$type === eventDefinitionType && matches(event, filter);
  });
}
 
export function isThrowEvent(event) {
  return (event.$type === 'bpmn:IntermediateThrowEvent') || (event.$type === 'bpmn:EndEvent');
}
 
export function isCollection(element) {
  var dataObject = element.dataObjectRef;
 
  return element.isCollection || (dataObject && dataObject.isCollection);
}
 
export function getDi(element) {
  return element.businessObject.di;
}
 
export function getSemantic(element) {
  return element.businessObject;
}
 
 
// color access //////////////////////
 
export function getFillColor(element, defaultColor) {
  return getDi(element).get('bioc:fill') || defaultColor || 'white';
}
 
export function getStrokeColor(element, defaultColor) {
  return getDi(element).get('bioc:stroke') || defaultColor || 'black';
}
 
 
// cropping path customizations //////////////////////
 
export function getCirclePath(shape) {
 
  var cx = shape.x + shape.width / 2,
      cy = shape.y + shape.height / 2,
      radius = shape.width / 2;
 
  var circlePath = [
    ['M', cx, cy],
    ['m', 0, -radius],
    ['a', radius, radius, 0, 1, 1, 0, 2 * radius],
    ['a', radius, radius, 0, 1, 1, 0, -2 * radius],
    ['z']
  ];
 
  return componentsToPath(circlePath);
}
 
export function getRoundRectPath(shape, borderRadius) {
 
  var x = shape.x,
      y = shape.y,
      width = shape.width,
      height = shape.height;
 
  var roundRectPath = [
    ['M', x + borderRadius, y],
    ['l', width - borderRadius * 2, 0],
    ['a', borderRadius, borderRadius, 0, 0, 1, borderRadius, borderRadius],
    ['l', 0, height - borderRadius * 2],
    ['a', borderRadius, borderRadius, 0, 0, 1, -borderRadius, borderRadius],
    ['l', borderRadius * 2 - width, 0],
    ['a', borderRadius, borderRadius, 0, 0, 1, -borderRadius, -borderRadius],
    ['l', 0, borderRadius * 2 - height],
    ['a', borderRadius, borderRadius, 0, 0, 1, borderRadius, -borderRadius],
    ['z']
  ];
 
  return componentsToPath(roundRectPath);
}
 
export function getDiamondPath(shape) {
 
  var width = shape.width,
      height = shape.height,
      x = shape.x,
      y = shape.y,
      halfWidth = width / 2,
      halfHeight = height / 2;
 
  var diamondPath = [
    ['M', x + halfWidth, y],
    ['l', halfWidth, halfHeight],
    ['l', -halfWidth, halfHeight],
    ['l', -halfWidth, -halfHeight],
    ['z']
  ];
 
  return componentsToPath(diamondPath);
}
 
export function getRectPath(shape) {
  var x = shape.x,
      y = shape.y,
      width = shape.width,
      height = shape.height;
 
  var rectPath = [
    ['M', x, y],
    ['l', width, 0],
    ['l', 0, height],
    ['l', -width, 0],
    ['z']
  ];
 
  return componentsToPath(rectPath);
}