wisemapping-open-source/web2d/src/main/javascript/peer/svg/PolyLinePeer.js
2011-07-27 13:44:09 -03:00

121 lines
3.6 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.
*/
web2d.peer.svg.PolyLinePeer = function()
{
var svgElement = window.document.createElementNS(this.svgNamespace, 'polyline');
web2d.peer.svg.ElementPeer.call(this, svgElement);
this.setFill("none");
this.breakDistance = 10;
};
objects.extend(web2d.peer.svg.PolyLinePeer, web2d.peer.svg.ElementPeer);
web2d.peer.svg.PolyLinePeer.prototype.setFrom = function(x1, y1)
{
this._x1 = x1;
this._y1 = y1;
this._updatePath();
};
web2d.peer.svg.PolyLinePeer.prototype.setTo = function(x2, y2)
{
this._x2 = x2;
this._y2 = y2;
this._updatePath();
};
web2d.peer.svg.PolyLinePeer.prototype.setStrokeWidth = function(width)
{
this._native.setAttribute('stroke-width', width);
};
web2d.peer.svg.PolyLinePeer.prototype.setColor = function(color)
{
this._native.setAttribute('stroke', color);
};
web2d.peer.svg.PolyLinePeer.prototype.setStyle = function(style)
{
this._style = style;
this._updatePath();
};
web2d.peer.svg.PolyLinePeer.prototype.getStyle = function()
{
return this._style;
};
web2d.peer.svg.PolyLinePeer.prototype._updatePath = function()
{
if (this._style == "Curved")
{
this._updateMiddleCurvePath();
}
else if (this._style == "Straight")
{
this._updateStraightPath();
}
else
{
this._updateCurvePath();
}
};
web2d.peer.svg.PolyLinePeer.prototype._updateStraightPath = function()
{
if ($defined(this._x1) && $defined(this._x2) && $defined(this._y1) && $defined(this._y2))
{
var path = web2d.PolyLine.buildStraightPath(this.breakDistance, this._x1, this._y1, this._x2, this._y2);
this._native.setAttribute('points', path);
}
};
web2d.peer.svg.PolyLinePeer.prototype._updateMiddleCurvePath = function()
{
var x1 = this._x1;
var y1 = this._y1;
var x2 = this._x2;
var y2 = this._y2;
if ($defined(x1) && $defined(x2) && $defined(y1) && $defined(y2))
{
var diff = x2 - x1;
var middlex = (diff / 2) + x1;
var signx = 1;
var signy = 1;
if (diff < 0)
{
signx = -1;
}
if (y2 < y1)
{
signy = -1;
}
var path = x1 + ", " + y1 + " " + (middlex - 10 * signx) + ", " + y1 + " " + middlex + ", " + (y1 + 10 * signy) + " " + middlex + ", " + (y2 - 10 * signy) + " " + (middlex + 10 * signx) + ", " + y2 + " " + x2 + ", " + y2;
this._native.setAttribute('points', path);
}
};
web2d.peer.svg.PolyLinePeer.prototype._updateCurvePath = function()
{
if ($defined(this._x1) && $defined(this._x2) && $defined(this._y1) && $defined(this._y2))
{
var path = web2d.PolyLine.buildCurvedPath(this.breakDistance, this._x1, this._y1, this._x2, this._y2);
this._native.setAttribute('points', path);
}
};