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| import {
getOrientation
} from 'diagram-js/lib/layout/LayoutUtil';
export function getBoundaryAttachment(position, targetBounds) {
var orientation = getOrientation(position, targetBounds, -15);
if (orientation !== 'intersect') {
return orientation;
} else {
return null;
}
}
// participant snapping box implementation //////////////////////
import { is } from '../../util/ModelUtil';
import {
asTRBL
} from 'diagram-js/lib/layout/LayoutUtil';
import {
collectLanes,
getLanesRoot
} from '../modeling/util/LaneUtil';
var abs = Math.abs,
min = Math.min,
max = Math.max;
function addToTrbl(trbl, attr, value, choice) {
var current = trbl[attr];
// make sure to set the value if it does not exist
// or apply the correct value by comparing against
// choice(value, currentValue)
trbl[attr] = current === undefined ? value : choice(value, current);
}
function addMin(trbl, attr, value) {
return addToTrbl(trbl, attr, value, min);
}
function addMax(trbl, attr, value) {
return addToTrbl(trbl, attr, value, max);
}
var LANE_MIN_HEIGHT = 60,
LANE_MIN_WIDTH = 300,
LANE_RIGHT_PADDING = 20,
LANE_LEFT_PADDING = 50,
LANE_TOP_PADDING = 20,
LANE_BOTTOM_PADDING = 20;
export function getParticipantSizeConstraints(laneShape, resizeDirection, balanced) {
var lanesRoot = getLanesRoot(laneShape);
var isFirst = true,
isLast = true;
// max top/bottom size for lanes
var allLanes = collectLanes(lanesRoot, [ lanesRoot ]);
var laneTrbl = asTRBL(laneShape);
var maxTrbl = {},
minTrbl = {};
if (/e/.test(resizeDirection)) {
minTrbl.right = laneTrbl.left + LANE_MIN_WIDTH;
} else
if (/w/.test(resizeDirection)) {
minTrbl.left = laneTrbl.right - LANE_MIN_WIDTH;
}
allLanes.forEach(function(other) {
var otherTrbl = asTRBL(other);
if (/n/.test(resizeDirection)) {
if (otherTrbl.top < (laneTrbl.top - 10)) {
isFirst = false;
}
// max top size (based on next element)
if (balanced && abs(laneTrbl.top - otherTrbl.bottom) < 10) {
addMax(maxTrbl, 'top', otherTrbl.top + LANE_MIN_HEIGHT);
}
// min top size (based on self or nested element)
if (abs(laneTrbl.top - otherTrbl.top) < 5) {
addMin(minTrbl, 'top', otherTrbl.bottom - LANE_MIN_HEIGHT);
}
}
if (/s/.test(resizeDirection)) {
if (otherTrbl.bottom > (laneTrbl.bottom + 10)) {
isLast = false;
}
// max bottom size (based on previous element)
if (balanced && abs(laneTrbl.bottom - otherTrbl.top) < 10) {
addMin(maxTrbl, 'bottom', otherTrbl.bottom - LANE_MIN_HEIGHT);
}
// min bottom size (based on self or nested element)
if (abs(laneTrbl.bottom - otherTrbl.bottom) < 5) {
addMax(minTrbl, 'bottom', otherTrbl.top + LANE_MIN_HEIGHT);
}
}
});
// max top/bottom/left/right size based on flow nodes
var flowElements = lanesRoot.children.filter(function(s) {
return !s.hidden && !s.waypoints && (is(s, 'bpmn:FlowElement') || is(s, 'bpmn:Artifact'));
});
flowElements.forEach(function(flowElement) {
var flowElementTrbl = asTRBL(flowElement);
if (isFirst && /n/.test(resizeDirection)) {
addMin(minTrbl, 'top', flowElementTrbl.top - LANE_TOP_PADDING);
}
if (/e/.test(resizeDirection)) {
addMax(minTrbl, 'right', flowElementTrbl.right + LANE_RIGHT_PADDING);
}
if (isLast && /s/.test(resizeDirection)) {
addMax(minTrbl, 'bottom', flowElementTrbl.bottom + LANE_BOTTOM_PADDING);
}
if (/w/.test(resizeDirection)) {
addMin(minTrbl, 'left', flowElementTrbl.left - LANE_LEFT_PADDING);
}
});
return {
min: minTrbl,
max: maxTrbl
};
} |