mirror of
https://bitbucket.org/wisemapping/wisemapping-open-source.git
synced 2024-11-15 11:07:57 +01:00
99 lines
3.0 KiB
JavaScript
99 lines
3.0 KiB
JavaScript
/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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web2d.peer.svg.ArrowPeer = function()
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{
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var svgElement = window.document.createElementNS(this.svgNamespace, 'path');
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web2d.peer.svg.ElementPeer.call(this, svgElement);
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this._style={};
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this._controlPoint=new core.Point();
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this._fromPoint = new core.Point();
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};
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objects.extend(web2d.peer.svg.ArrowPeer, web2d.peer.svg.ElementPeer);
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web2d.peer.svg.ArrowPeer.prototype.setFrom = function(x,y)
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{
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this._fromPoint.x = x;
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this._fromPoint.y = y;
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this._redraw();
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};
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web2d.peer.svg.ArrowPeer.prototype.setControlPoint = function (point)
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{
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this._controlPoint = point;
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this._redraw();
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};
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web2d.peer.svg.ArrowPeer.prototype.setStrokeColor = function (color)
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{
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this.setStroke(null,null,color, null);
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};
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web2d.peer.svg.ArrowPeer.prototype.setStrokeWidth = function(width)
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{
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this.setStroke(width);
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};
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web2d.peer.svg.ArrowPeer.prototype.setDashed = function(isDashed, length, spacing){
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if(core.Utils.isDefined(isDashed) && isDashed && core.Utils.isDefined(length) && core.Utils.isDefined(spacing)){
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this._native.setAttribute("stroke-dasharray",length+","+spacing);
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} else {
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this._native.setAttribute("stroke-dasharray","");
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}
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};
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web2d.peer.svg.ArrowPeer.prototype._updateStyle = function()
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{
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var style = "";
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for(var key in this._style){
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style+=key+":"+this._style[key]+" ";
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}
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this._native.setAttribute("style",style);
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};
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web2d.peer.svg.ArrowPeer.prototype._redraw = function()
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{
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var x,y, xp, yp;
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if(this._controlPoint.y == 0)
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this._controlPoint.y=1;
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var y0 = this._controlPoint.y;
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var x0 = this._controlPoint.x;
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var x2=x0+y0;
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var y2 = y0-x0;
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var x3 = x0-y0;
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var y3 = y0+x0;
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var m = y2/x2;
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var mp = y3/x3;
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var l = 6;
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var pow = Math.pow;
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x = (x2==0?0:Math.sqrt(pow(l,2)/(1+pow(m,2))));
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x *=Math.sign(x2);
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y = (x2==0?l*Math.sign(y2):m*x);
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xp = (x3==0?0:Math.sqrt(pow(l,2)/(1+pow(mp,2))));
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xp *=Math.sign(x3);
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yp = (x3==0?l*Math.sign(y3):mp*xp);
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var path = "M"+this._fromPoint.x+","+this._fromPoint.y+" "
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+"L"+(x+this._fromPoint.x)+","+(y+this._fromPoint.y)
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+"M"+this._fromPoint.x+","+this._fromPoint.y+" "
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+"L"+(xp+this._fromPoint.x)+","+(yp+this._fromPoint.y)
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;
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this._native.setAttribute("d",path);
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};
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