我正在开发一个 enyo 应用程序。我想画一个svg。到目前为止,这是我的代码:
enyo.kind({
name:"draw",
kind:enyo.Control,
tag:"svg",
attributes:{
xmlns:"http://www.w3.org/2000/svg",
version:"1.1"
},
classes:"drawSvg",
published:{
drawSize:5,
selectedColor:"333333",
paths:0
},
handlers:{
ondown:"onDownHandler",
onmove:"onMoveHandler"
},
create:function(){
this.inherited(arguments);
this.render();
},
rendered:function(){
this.inherited(arguments);
},
onDownHandler:function(sender,target){
this.iPaths++;
var p = this.getPositionInSvg(target);
var path = document.createElementNS("http://www.w3.org/2000/svg", "path");
path.setAttribute('class', 'drawpath'+ this.iPaths);
path.setAttribute('fill', 'none');
path.setAttribute('stroke', '#'+this.getSelectedColor());
path.setAttribute('stroke-width', this.getDrawSize());
path.setAttribute('d', "M " + p.x + "," + p.y);
$(this.hasNode()).append(path);
},
onMoveHandler:function(sender,target){
var p = this.getPositionInSvg(target);
$('. drawpath'+ this.iPaths).attr("d", $('. drawpath'+ this.iPaths).attr("d") + " L "+ p.x+","+ p.y);
},
getPositionInSvg:function(target){
var pos = new Object();
pos.x = ((target.pageX - this.hasNode().offsetLeft) / window.settings.SCALE) + 0.5>>0;
pos.y = ((target.pageY - $(this.hasNode()).offset().top) / window.settings.SCALE) + 0.5>>0;
return pos;
}
});
当我在 firebug 中查看生成的 HTML 代码时。这是代码:
<svg id="frame_view1_drawSvg" class="drawSvg" xmlns="http://www.w3.org/2000/svg"
version="1.1" style="left: 62px; top: 0px; height: 877px; width: 1403px;
pointer-events: auto; cursor: none;">
<path class="drawpath1" fill="none" stroke="#333333" stroke-width="5" d="M 795,597
L 795,599 L 795,601 L 795,603 L 793,606 L 785,609 L 767,617 L 742,623 L 713,629
L 640,634 L 616,636 L 579,634 L 549,630 L 530,622 L 513,611 L 495,597 L 485,588
L 477,581 L 474,577 L 473,576 L 472,575 L 466,572 L 452,566 L 436,557 L 420,543
L 410,526 L 404,502 L 404,491 L 416,487 L 452,484 L 499,494 L 537,513 L 573,538
L 588,554 L 591,557 L 591,556 L 583,551 L 570,542 L 553,525 L 531,504 L 523,496
L 521,495 L 521,494 L 521,494 L 522,494">
<path class="drawpath2" fill="none" stroke="#333333" stroke-width="5" d="M 1166,136
L 1166,137 L 1164,135 L 1162,135 L 1157,134 L 1148,131 L 1128,129 L 1117,124
L 1107,122 L 1099,119 L 1096,119 L 1094,117 L 1092,117 L 1092,118 L 1092,119
L 1093,120 L 1095,125 L 1096,129 L 1096,133 L 1096,139 L 1096,141 L 1237,139
L 1234,140 L 1227,142 L 1219,145 L 1203,151 L 1190,154 L 1172,160 L 1157,162
L 1148,164 L 1145,164 L 1142,164 L 1139,165 L 1138,167 L 1138,168 L 1138,169
L 1138,169 L 1139,169 L 1144,169 L 1148,170 L 1149,170 L 901,317 L 901,317
L 901,317 L 899,326 L 899,327 L 898,331 L 896,336">
</svg>
我认为生成的代码看起来不错。但我在 svg 中看不到任何内容。什么都没有渲染,svg 是空的。