portal/static/unbound_reservation_static/src/connectors-bezier.js

   1
   2 ;(function() {
   3
   4         var Bezier = function(params) {
   5         params = params || {};
   6
   7         var self = this,
   8                         _super =  jsPlumb.Connectors.AbstractConnector.apply(this, arguments),
   9             stub = params.stub || 50,
  10             majorAnchor = params.curviness || 150,
  11             minorAnchor = 10;
  12
  13         this.type = "Bezier";
  14         this.getCurviness = function() { return majorAnchor; };
  15
  16         this._findControlPoint = function(point, sourceAnchorPosition, targetAnchorPosition, sourceEndpoint, targetEndpoint) {
  17                 // determine if the two anchors are perpendicular to each other in their orientation.  we swap the control
  18                 // points around if so (code could be tightened up)
  19                 var soo = sourceEndpoint.anchor.getOrientation(sourceEndpoint),
  20                         too = targetEndpoint.anchor.getOrientation(targetEndpoint),
  21                         perpendicular = soo[0] != too[0] || soo[1] == too[1],
  22                 p = [];
  23
  24             if (!perpendicular) {
  25                 if (soo[0] === 0) // X
  26                     p.push(sourceAnchorPosition[0] < targetAnchorPosition[0] ? point[0] + minorAnchor : point[0] - minorAnchor);
  27                 else p.push(point[0] - (majorAnchor * soo[0]));
  28
  29                 if (soo[1] === 0) // Y
  30                         p.push(sourceAnchorPosition[1] < targetAnchorPosition[1] ? point[1] + minorAnchor : point[1] - minorAnchor);
  31                 else p.push(point[1] + (majorAnchor * too[1]));
  32             }
  33              else {
  34                 if (too[0] === 0) // X
  35                         p.push(targetAnchorPosition[0] < sourceAnchorPosition[0] ? point[0] + minorAnchor : point[0] - minorAnchor);
  36                 else p.push(point[0] + (majorAnchor * too[0]));
  37
  38                 if (too[1] === 0) // Y
  39                         p.push(targetAnchorPosition[1] < sourceAnchorPosition[1] ? point[1] + minorAnchor : point[1] - minorAnchor);
  40                 else p.push(point[1] + (majorAnchor * soo[1]));
  41              }
  42
  43             return p;
  44         };
  45
  46         this._compute = function(paintInfo, p) {
  47                         var sp = p.sourcePos,
  48                                 tp = p.targetPos,
  49                 _w = Math.abs(sp[0] - tp[0]),
  50                 _h = Math.abs(sp[1] - tp[1]),
  51                 _sx = sp[0] < tp[0] ? _w : 0,
  52                 _sy = sp[1] < tp[1] ? _h : 0,
  53                 _tx = sp[0] < tp[0] ? 0 : _w,
  54                 _ty = sp[1] < tp[1] ? 0 : _h,
  55                 _CP = self._findControlPoint([_sx, _sy], sp, tp, p.sourceEndpoint, p.targetEndpoint),
  56                 _CP2 = self._findControlPoint([_tx, _ty], tp, sp, p.targetEndpoint, p.sourceEndpoint);
  57
  58                         _super.addSegment(this, "Bezier", {
  59                                 x1:_sx, y1:_sy, x2:_tx, y2:_ty,
  60                                 cp1x:_CP[0], cp1y:_CP[1], cp2x:_CP2[0], cp2y:_CP2[1]
  61                         });
  62         };
  63         };
  64
  65         jsPlumb.registerConnectorType(Bezier, "Bezier");
  66
  67 })();