bpmn-js/lib/features/modeling/cmd/ResizeLaneHandler.js

126 lines
3.2 KiB
JavaScript

'use strict';
var is = require('../../../util/ModelUtil').is;
var getLanesRoot = require('../util/LaneUtil').getLanesRoot,
computeLanesResize = require('../util/LaneUtil').computeLanesResize;
var eachElement = require('diagram-js/lib/util/Elements').eachElement;
var asTRBL = require('diagram-js/lib/layout/LayoutUtil').asTRBL,
substractTRBL = require('diagram-js/lib/features/resize/ResizeUtil').substractTRBL;
/**
* A handler that resizes a lane.
*
* @param {Modeling} modeling
*/
function ResizeLaneHandler(modeling, spaceTool) {
this._modeling = modeling;
this._spaceTool = spaceTool;
}
ResizeLaneHandler.$inject = [ 'modeling', 'spaceTool' ];
module.exports = ResizeLaneHandler;
ResizeLaneHandler.prototype.preExecute = function(context) {
var shape = context.shape,
newBounds = context.newBounds,
balanced = context.balanced;
if (balanced !== false) {
this.resizeBalanced(shape, newBounds);
} else {
this.resizeSpace(shape, newBounds);
}
};
/**
* Resize balanced, adjusting next / previous lane sizes.
*
* @param {djs.model.Shape} shape
* @param {Bounds} newBounds
*/
ResizeLaneHandler.prototype.resizeBalanced = function(shape, newBounds) {
var modeling = this._modeling;
var resizeNeeded = computeLanesResize(shape, newBounds);
// resize the lane
modeling.resizeShape(shape, newBounds);
// resize other lanes as needed
resizeNeeded.forEach(function(r) {
modeling.resizeShape(r.shape, r.newBounds);
});
};
/**
* Resize, making actual space and moving below / above elements.
*
* @param {djs.model.Shape} shape
* @param {Bounds} newBounds
*/
ResizeLaneHandler.prototype.resizeSpace = function(shape, newBounds) {
var spaceTool = this._spaceTool;
var shapeTrbl = asTRBL(shape),
newTrbl = asTRBL(newBounds);
var trblDiff = substractTRBL(newTrbl, shapeTrbl);
var lanesRoot = getLanesRoot(shape);
var allAffected = [],
allLanes = [];
eachElement(lanesRoot, function(element) {
allAffected.push(element);
if (is(element, 'bpmn:Lane') || is(element, 'bpmn:Participant')) {
allLanes.push(element);
}
return element.children;
});
var change,
spacePos,
direction,
offset,
adjustments;
if (trblDiff.bottom || trblDiff.top) {
change = trblDiff.bottom || trblDiff.top;
spacePos = shape.y + (trblDiff.bottom ? shape.height : 0) + (trblDiff.bottom ? -10 : 10);
direction = trblDiff.bottom ? 's' : 'n';
offset = trblDiff.top > 0 || trblDiff.bottom < 0 ? -change : change;
adjustments = spaceTool.calculateAdjustments(allAffected, 'y', offset, spacePos);
spaceTool.makeSpace(adjustments.movingShapes, adjustments.resizingShapes, { x: 0, y: change }, direction);
}
if (trblDiff.left || trblDiff.right) {
change = trblDiff.right || trblDiff.left;
spacePos = shape.x + (trblDiff.right ? shape.width : 0) + (trblDiff.right ? -10 : 100);
direction = trblDiff.right ? 'e' : 'w';
offset = trblDiff.left > 0 || trblDiff.right < 0 ? -change : change;
adjustments = spaceTool.calculateAdjustments(allLanes, 'x', offset, spacePos);
spaceTool.makeSpace(adjustments.movingShapes, adjustments.resizingShapes, { x: change, y: 0 }, direction);
}
};