},
pointerup: function (evt, x, y) {
if (this._click) {
// triggers an event on the paper and the element itself
this.notify('cell:click', evt, x, y);
} else {
joint.dia.ElementView.prototype.pointerup.apply(this, arguments);
}
}
});
var LinkView = joint.dia.LinkView.extend({
addVertex: function(evt, x, y) {},
removeVertex: function(endType) {},
pointerdown:function(evt, x, y) {}
});
//定义画布
var paper = new joint.dia.Paper({
el: $('#paper'),
width: 1200,
height: 600,
gridSize: 1,
model: graph,
elementView: ElementView,
linkView:LinkView
});
//paper.$el.css('pointer-events', 'none')//去除默认样式，使所有事件不可用
然后我写了两个函数分别用来创建形状和连线，这样写可以减少代码量，官方的demo也大都是这样写的
//定义形状
var state = function(x, y, shape, background, text){
var cell;
if(shape==="rect"){
cell = new joint.shapes.basic.Rect({
position: { x: x, y: y },//坐标
size: { width: 140, height: 40 },//宽高
attrs: {
rect: {
fill: {
type: 'linearGradient',
stops: [
{ offset: '0%', color: background },//渐变开始
{ offset: '100%', color: '#fe8550' }//渐变结束
],
attrs: { x1: '0%', y1: '0%', x2: '0%', y2: '100%' }
},
stroke: background,//边框颜色
'stroke-width': 1//边框大小
},
text: { text: text } //显示文字
}
});
} else if(shape==="ellipse"){
cell = new joint.shapes.basic.Ellipse({
position: { x: x, y: y },//坐标
size: { width: 140, height: 40 },//宽高
attrs: {
ellipse: {
fill: {
type: 'linearGradient',
stops: [
{ offset: '0%', color: background },//渐变开始
{ offset: '100%', color: '#FFFFFF' }//渐变结束
],
attrs: { x1: '0%', y1: '0%', x2: '0%', y2: '100%' }
},
stroke: background,//边框颜色
'stroke-width': 1//边框大小
},
text: { text: text } //显示文字
}
});
}
graph.addCell(cell);
return cell;
}; //定义连线
function link(source, target, label){
var cell = new joint.dia.Link({
source: { id: source.id },
target: { id: target.id },
labels: [{ position: 0.5, attrs: { text: { text: label || '', 'font-weight': 'bold' } } }],
router: { name: 'manhattan' },//设置连线弯曲样式 manhattan直角
attrs: {
'.connection': {
stroke: '#333333',//连线颜色
'stroke-width': 2//连线粗细
},
'.marker-target': {
fill: '#333333',//箭头颜色
d: 'M 10 0 L 0 5 L 10 10 z'//箭头样式
}
}
});
graph.addCell(cell);
return cell;
