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Refactor connection algorithm.

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This commit is contained in:
Paulo Gustavo Veiga 2012-08-20 11:00:33 -03:00
parent 9b2a24c437
commit da6859313b
1 changed files with 12 additions and 7 deletions
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19
mindplot/src/main/javascript/DragConnector.js
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@ -53,13 +53,12 @@ mindplot.DragConnector = new Class({
var xMouseGap = dragTopic.getPosition().x > 0 ? 0 : dragTopicWidth;
var sPos = {x:dragTopic.getPosition().x - xMouseGap, y:dragTopic.getPosition().y};
// Perform a initial filter to discard topics:
// - Exclude dragged topic
// - Exclude dragTopic pivot
// - Nodes that are collapsed
topics = topics.filter(function (topic) {
return draggedNode != topic && topic != dragTopic._draggedNode && !topic.areChildrenShrunken() && !topic.isCollapsed();
return draggedNode != topic && topic != draggedNode && !topic.areChildrenShrunken() && !topic.isCollapsed();
});
// Filter all the nodes that are outside the vertical boundary:
@ -78,22 +77,28 @@ mindplot.DragConnector = new Class({
// - Alignment with the targetNode
// - Vertical distance
// - Horizontal proximity
// - It's already connected.
var currentConnection = dragTopic.getConnectedToTopic();
topics = topics.sort(function (a, b) {
var aPos = a.getPosition();
var bPos = b.getPosition();
var av = this._isVerticallyAligned(a.getSize(), a.getPosition(), sPos);
var bv = this._isVerticallyAligned(b.getSize(), b.getPosition(), sPos);
return ((av ? 1 : 10000) + Math.abs(aPos.x - sPos.x) + Math.abs(aPos.y - sPos.y)) - ((bv ? 1 : 10000) + Math.abs(bPos.x - sPos.x) + Math.abs(bPos.y - sPos.y));
var av = this._isVerticallyAligned(a.getSize(), aPos, sPos);
var bv = this._isVerticallyAligned(b.getSize(), bPos, sPos);
return this._proximityWeight(av, a, sPos, currentConnection) - this._proximityWeight(bv, b, sPos, currentConnection);
}.bind(this));
return topics;
},
_proximityWeight:function (isAligned, target, sPos, currentConnection) {
var tPos = target.getPosition();
return (isAligned ? 0 : 200 ) + Math.abs(tPos.x - sPos.x) + Math.abs(tPos.y - sPos.y) + (currentConnection == target ? 0 : 100);
},
_isVerticallyAligned:function (targetSize, targetPosition, sourcePosition) {
return (sourcePosition.y - targetPosition.y) < targetSize.height;
return Math.abs(sourcePosition.y - targetPosition.y) < targetSize.height / 2;
}