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SymmetricSorter predict optimization
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@ -21,13 +21,26 @@ mindplot.layout.SymmetricSorter = new Class({
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},
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/**
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* Predict the order and position of a dragged node.
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*
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* @param graph The tree set
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* @param parent The parent of the node
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* @param node The node
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* @param position The position of the drag
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* @param free Free drag or not
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* @return {*}
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*/
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predict:function (graph, parent, node, position, free) {
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var self = this;
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var rootNode = graph.getRootNode(parent);
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// If its a free node...
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if (free) {
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$assert($defined(position), "position cannot be null for predict in free positioning");
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$assert($defined(node), "node cannot be null for predict in free positioning");
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var rootNode = graph.getRootNode(parent);
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var direction = this._getRelativeDirection(rootNode.getPosition(), parent.getPosition());
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var limitXPos = parent.getPosition().x + direction * (parent.getSize().width / 2 + node.getSize().width / 2 + mindplot.layout.SymmetricSorter.INTERNODE_HORIZONTAL_PADDING);
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@ -38,67 +51,81 @@ mindplot.layout.SymmetricSorter = new Class({
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return [0, {x:xPos, y:position.y}];
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}
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var rootNode = graph.getRootNode(parent);
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// If it is a dragged node...
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if (node) {
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$assert($defined(position), "position cannot be null for predict in dragging");
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var nodeDirection = this._getRelativeDirection(rootNode.getPosition(), node.getPosition());
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var positionDirection = this._getRelativeDirection(rootNode.getPosition(), position);
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var siblings = graph.getSiblings(node);
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var sameParent = parent == graph.getParent(node);
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if (siblings.length == 0 && nodeDirection == positionDirection && sameParent) {
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return [node.getOrder() + 1, node.getPosition()];
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}
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}
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// Regular node
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var direction = parent.getPosition().x > rootNode.getPosition().x ? 1 : -1;
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// No children...
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var children = graph.getChildren(parent).filter(function (child) {
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return child != node;
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});
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if (children.length == 0) {
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position = position || {x:parent.getPosition().x + direction, y:parent.getPosition().y};
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var pos = {
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x:parent.getPosition().x + direction * (parent.getSize().width + mindplot.layout.SymmetricSorter.INTERNODE_HORIZONTAL_PADDING),
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// Its not a dragged node (it is being added)
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if (!node) {
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var parentDirection = self._getRelativeDirection(rootNode.getPosition(), parent.getPosition());
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var position = {
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x:parent.getPosition().x + parentDirection * (parent.getSize().width + mindplot.layout.SymmetricSorter.INTERNODE_HORIZONTAL_PADDING),
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y:parent.getPosition().y
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};
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return [0, pos];
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return [graph.getChildren(parent).length, position];
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}
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// Try to fit within ...
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var result = null;
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var last = children.getLast();
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position = position || {x:last.getPosition().x + direction, y:last.getPosition().y + 1};
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children.each(function (child, index) {
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var cpos = child.getPosition();
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if (position.y > cpos.y) {
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var yOffset = child == last ?
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child.getSize().height + mindplot.layout.SymmetricSorter.INTERNODE_VERTICAL_PADDING * 2 :
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(children[index + 1].getPosition().y + children[index + 1].getSize().height / 2 - child.getPosition().y) / 2;
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result = [child.getOrder() + 1, {x:cpos.x, y:cpos.y + yOffset}];
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// If it is a dragged node...
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$assert($defined(position), "position cannot be null for predict in dragging");
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var nodeDirection = this._getRelativeDirection(rootNode.getPosition(), node.getPosition());
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var positionDirection = this._getRelativeDirection(rootNode.getPosition(), position);
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var siblings = graph.getSiblings(node);
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// node has no siblings and its trying to reconnect to its own parent
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var sameParent = parent == graph.getParent(node);
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if (siblings.length == 0 && nodeDirection == positionDirection && sameParent) {
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return [node.getOrder(), node.getPosition()];
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}
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var parentChildren = graph.getChildren(parent);
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if (parentChildren.length == 0) {
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// Fit as a child of the parent node...
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var position = {
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x:parent.getPosition().x + positionDirection * (parent.getSize().width + mindplot.layout.SymmetricSorter.INTERNODE_HORIZONTAL_PADDING),
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y:parent.getPosition().y
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};
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return [0, position];
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} else {
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// Try to fit within ...
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var result = null;
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var last = parentChildren.getLast();
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for (var i=0; i<parentChildren.length; i++) {
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var parentChild = parentChildren[i];
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var nodeAfter = (i + 1) == parentChild.length ? null : parentChildren[i+1];
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// Fit at the bottom
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if (!nodeAfter && position.y > parentChild.getPosition().y) {
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var order = graph.getParent(node).getId() == parent.getId() ?
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last.getOrder() : last.getOrder() + 1;
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var position = {
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x: parentChild.getPosition().x,
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y: parentChild.getPosition().y + parentChild.getSize().height + mindplot.layout.SymmetricSorter.INTERNODE_VERTICAL_PADDING * 2
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}
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return [order, position];
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}
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// Fit after this node
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if (nodeAfter && position.y > parentChild.getPosition().y && position.y < nodeAfter.getPosition().y) {
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if(nodeAfter.getId() == node.getId() || parentChild.getId() == node.getId()) {
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return [node.getOrder(), node.getPosition()];
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} else {
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var order = position.y > node.getPosition().y ?
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nodeAfter.getOrder() - 1 : parentChild.getOrder() + 1;
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var position = {
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x: parentChild.getPosition().x,
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y: parentChild.getPosition().y + (nodeAfter.getPosition().y - parentChild.getPosition().y) / 2
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}
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return [order, position];
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}
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}
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}
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});
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// Position wasn't below any node, so it must be inserted above
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if (!result) {
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var first = children[0];
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result = [0, {
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x:first.getPosition().x,
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y:first.getPosition().y - first.getSize().height - mindplot.layout.SymmetricSorter.INTERNODE_VERTICAL_PADDING * 2
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}];
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return result;
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}
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// if the node is moving down, substract 1 from the order
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if (node != null && parent == graph.getParent(node) && result[1].y > node.getPosition().y) {
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result[0] = result[0] - 1;
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}
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return result;
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// Position wasn't below any node, so it must be fitted above the first
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var first = parentChildren[0];
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var position = {
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x:first.getPosition().x,
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y:first.getPosition().y - first.getSize().height - mindplot.layout.SymmetricSorter.INTERNODE_VERTICAL_PADDING * 2
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};
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return [0, position];
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},
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insert:function (treeSet, parent, child, order) {
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