wisemapping-open-source/mindplot/src/main/javascript/commands/DragTopicCommand.js

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JavaScript
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2009-06-07 20:59:43 +02:00
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* $Id: file 64488 2006-03-10 17:32:09Z paulo $
*/
mindplot.commands.DragTopicCommand = mindplot.Command.extend(
{
initialize: function(topicId)
{
core.assert(topicId, "topicId must be defined");
this._topicId = topicId;
this._parentTopic = null;
this._position = null;
this._order = null;
this._id = mindplot.Command._nextUUID();
},
execute: function(commandContext)
{
var topic = commandContext.findTopics([this._topicId])[0];
// Save old position ...
var origParentTopic = topic.getOutgoingConnectedTopic();
var origOrder = null;
var origPosition = null;
if (topic.getType() == mindplot.NodeModel.MAIN_TOPIC_TYPE && origParentTopic != null && origParentTopic.getType() == mindplot.NodeModel.MAIN_TOPIC_TYPE)
{
// In this case, topics are positioned using order ...
origOrder = topic.getOrder();
} else
{
origPosition = topic.getPosition().clone();
}
// Disconnect topic ..
if (origParentTopic)
{
commandContext.disconnect(topic);
}
// Set topic position ...
if (this._position != null)
{
// Set position ...
topic.setPosition(this._position);
} else if (this._order != null)
{
topic.setOrder(this._order);
} else
{
core.assert("Illegal commnad state exception.");
}
this._order = origOrder;
this._position = origPosition;
// Finally, connect topic ...
if (this._parentId)
{
var parentTopic = commandContext.findTopics([this._parentId])[0];
commandContext.connect(topic, parentTopic);
}
// Backup old parent id ...
this._parentId = null;
if (origParentTopic)
{
this._parentId = origParentTopic.getId();
}
},
undoExecute: function(commandContext)
{
this.execute(commandContext);
},
setPosition: function(point)
{
this._position = point;
},
setParetTopic: function(topic) {
this._parentId = topic.getId();
},
setOrder: function(order)
{
this._order = order
}
});