wisemapping-open-source/mindplot/src/main/javascript/NodeGraph.js
2011-01-23 21:03:40 -03:00

177 lines
4.4 KiB
JavaScript

/*
* Copyright [2011] [wisemapping]
*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* 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.
*/
mindplot.NodeGraph = function(nodeModel)
{
this._mouseEvents = true;
this.setModel(nodeModel);
this._onFocus = false;
};
mindplot.NodeGraph.prototype.getType = function()
{
var model = this.getModel();
return model.getType();
};
mindplot.NodeGraph.prototype.getId = function()
{
return this.getModel().getId();
};
mindplot.NodeGraph.prototype.setId = function(id)
{
this.getModel().setId(id);
};
mindplot.NodeGraph.prototype._set2DElement = function(elem2d)
{
this._elem2d = elem2d;
};
mindplot.NodeGraph.prototype.get2DElement = function()
{
core.assert(this._elem2d, 'NodeGraph has not been initialized propertly');
return this._elem2d;
};
mindplot.NodeGraph.prototype.setPosition = function(point)
{
// Elements are positioned in the center.
var size = this._model.getSize();
this._elem2d.setPosition(point.x - (size.width / 2), point.y - (size.height / 2));
this._model.setPosition(point.x, point.y);
};
mindplot.NodeGraph.prototype.addEventListener = function(type, listener)
{
var elem = this.get2DElement();
elem.addEventListener(type, listener);
};
mindplot.NodeGraph.prototype.isNodeGraph = function()
{
return true;
};
mindplot.NodeGraph.prototype.setMouseEventsEnabled = function(isEnabled)
{
this._mouseEvents = isEnabled;
};
mindplot.NodeGraph.prototype.isMouseEventsEnabled = function()
{
return this._mouseEvents;
};
mindplot.NodeGraph.prototype.getSize = function()
{
return this._model.getSize();
};
mindplot.NodeGraph.prototype.setSize = function(size)
{
this._model.setSize(size.width, size.height);
};
mindplot.NodeGraph.create = function(nodeModel)
{
core.assert(nodeModel, 'Model can not be null');
var type = nodeModel.getType();
core.assert(type, 'Node model type can not be null');
var result;
if (type == mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
{
result = new mindplot.CentralTopic(nodeModel);
} else
if (type == mindplot.NodeModel.MAIN_TOPIC_TYPE)
{
result = new mindplot.MainTopic(nodeModel);
} else
{
assert(false, "unsupported node type:" + type);
}
return result;
};
mindplot.NodeGraph.prototype.getModel = function()
{
core.assert(this._model, 'Model has not been initialized yet');
return this._model;
};
mindplot.NodeGraph.prototype.setModel = function(model)
{
core.assert(model, 'Model can not be null');
this._model = model;
};
mindplot.NodeGraph.prototype.getId = function()
{
return this._model.getId();
};
mindplot.NodeGraph.prototype.setOnFocus = function(focus)
{
this._onFocus = focus;
var outerShape = this.getOuterShape();
if (focus)
{
outerShape.setFill('#c7d8ff');
outerShape.setOpacity(1);
} else
{
// @todo: node must not know about the topic.
outerShape.setFill(mindplot.Topic.OUTER_SHAPE_ATTRIBUTES.fillColor);
outerShape.setOpacity(0);
}
this.setCursor('move');
};
mindplot.NodeGraph.prototype.isOnFocus = function()
{
return this._onFocus;
};
mindplot.NodeGraph.prototype.dispose = function(workspace)
{
workspace.removeChild(this);
};
mindplot.NodeGraph.prototype.createDragNode = function()
{
var dragShape = this._buildDragShape();
return new mindplot.DragTopic(dragShape, this);
};
mindplot.NodeGraph.prototype._buildDragShape = function()
{
core.assert(false, '_buildDragShape must be implemented by all nodes.');
};
mindplot.NodeGraph.prototype.getPosition = function()
{
var model = this.getModel();
return model.getPosition();
};