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fixed problems with multiple node selection dragging (#79)

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This commit is contained in:
Devin Howard 2013-03-11 22:50:17 -04:00
parent 88a230dccf
commit e54c4e24ed
2 changed files with 51 additions and 16 deletions
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65
app/assets/javascripts/Jit/graphsettings-event-handlers.js
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@ -132,6 +132,28 @@ function canvasDoubleClickHandler(canvasLoc,e) {
}
}//canvasDoubleClickHandler
function handleSelectionBeforeDragging(node, e) {
// four cases:
// 1 nothing is selected, so pretend you aren't selecting
// 2 others are selected only and shift, so additionally select this one
// 3 others are selected only, no shift: drag only this one
// 4 this node and others were selected, so drag them (just return false)
//return value: deselect node again after?
if (MetamapsModel.selectedNodes.length == 0) {
selectNode(node);
return 'deselect';
}
if (MetamapsModel.selectedNodes.indexOf(node) == -1) {
if (e.shiftKey) {
selectNode(node);
return 'nothing';
} else {
return 'only-drag-this-one';
}
}
return 'nothing'; //case 4?
}
function onDragMoveTopicHandler(node, eventInfo, e) {
if (node && !node.nodeFrom) {
$('#new_synapse').fadeOut('fast');
@ -139,24 +161,35 @@ function onDragMoveTopicHandler(node, eventInfo, e) {
var pos = eventInfo.getPos();
// if it's a left click, move the node
if (e.button == 0 && !e.altKey && (e.buttons == 0 || e.buttons == 1 || e.buttons == undefined)) {
var len = MetamapsModel.selectedNodes.length;
//if the node dragged isn't already selected, select it
var whatToDo = handleSelectionBeforeDragging(node, e);
if (whatToDo == 'only-drag-this-one') {
node.pos.setc(pos.x, pos.y);
node.setData('xloc', pos.x);
node.setData('yloc', pos.y);
} else {
var len = MetamapsModel.selectedNodes.length;
//first define offset for each node
var xOffset = new Array();
var yOffset = new Array();
for (var i = 0; i < len; i += 1) {
n = MetamapsModel.selectedNodes[i];
xOffset[i] = n.getData('xloc') - node.getData('xloc');
yOffset[i] = n.getData('yloc') - node.getData('yloc');
//first define offset for each node
var xOffset = new Array();
var yOffset = new Array();
for (var i = 0; i < len; i += 1) {
n = MetamapsModel.selectedNodes[i];
xOffset[i] = n.getData('xloc') - node.getData('xloc');
yOffset[i] = n.getData('yloc') - node.getData('yloc');
}//for
for (var i = 0; i < len; i += 1) {
n = MetamapsModel.selectedNodes[i];
n.pos.setc(pos.x + xOffset[i], pos.y + yOffset[i]);
n.setData('xloc', pos.x + xOffset[i]);
n.setData('yloc', pos.y + yOffset[i]);
}//for
}//if
if (whatToDo == 'deselect') {
deselectNode(node);
}
for (var i = 0; i < len; i += 1) {
n = MetamapsModel.selectedNodes[i];
n.pos.setc(pos.x + xOffset[i], pos.y + yOffset[i]);
n.setData('xloc', pos.x + xOffset[i]);
n.setData('yloc', pos.y + yOffset[i]);
}
dragged = node.id;
Mconsole.plot();
}

2
app/assets/javascripts/Jit/select-edit-delete-nodes-and-edges.js
View file

@ -288,6 +288,7 @@ function deleteSelectedEdges() {
}
function selectNode(node) {
if (MetamapsModel.selectedNodes.indexOf(node) != -1) return;
node.selected = true;
node.setData('dim', 30, 'current');
node.setData('onCanvas',true);
@ -311,6 +312,7 @@ function deselectNode(node) {
}
function selectEdge(edge) {
if (MetamapsModel.selectedEdges.indexOf(edge) != -1) return;
var showDesc = edge.getData("showDesc");
if (! showDesc) {
edge.setData('showDesc', true, 'current');