bpmn-js/lib/draw/BpmnRenderUtil.js

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'use strict';
var every = require('lodash/collection/every'),
some = require('lodash/collection/some');
var componentsToPath = require('diagram-js/lib/util/RenderUtil').componentsToPath;
// element utils //////////////////////
/**
* Checks if eventDefinition of the given element matches with semantic type.
*
* @return {boolean} true if element is of the given semantic type
*/
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.$type === eventDefinitionType && matches(event, filter);
});
}
module.exports.isTypedEvent = isTypedEvent;
function isThrowEvent(event) {
return (event.$type === 'bpmn:IntermediateThrowEvent') || (event.$type === 'bpmn:EndEvent');
}
module.exports.isThrowEvent = isThrowEvent;
function isCollection(element) {
var dataObject = element.dataObjectRef;
return element.isCollection || (dataObject && dataObject.isCollection);
}
module.exports.isCollection = isCollection;
function getDi(element) {
return element.businessObject.di;
}
module.exports.getDi = getDi;
function getSemantic(element) {
return element.businessObject;
}
module.exports.getSemantic = getSemantic;
// color access //////////////////////
function getFillColor(element, defaultColor) {
return getDi(element).get('bioc:fill') || defaultColor || 'white';
}
module.exports.getFillColor = getFillColor;
function getStrokeColor(element, defaultColor) {
return getDi(element).get('bioc:stroke') || defaultColor || 'black';
}
module.exports.getStrokeColor = getStrokeColor;
// cropping path customizations //////////////////////
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);
}
module.exports.getCirclePath = getCirclePath;
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);
}
module.exports.getRoundRectPath = getRoundRectPath;
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);
}
module.exports.getDiamondPath = getDiamondPath;
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);
}
module.exports.getRectPath = getRectPath;