anchor.ts
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import editorStyle from "../util/defaultStyle";
import {GraphStyle} from "@/utils/styles";
import {SingleShapeMixin} from "@/g6/g6";
import {Item} from "@/g6/g6";
Item.prototype.anchorDebounceTimer = null
Item.prototype.getShowAnchorPoints = function () {
return [
[0, -0.5],
[-0.5, 0],
[0, 0.5],
[0.5, 0],
]
}
Item.prototype.showAnchor = function (graph) {
if (!!this.anchorDebounceTimer) {
clearTimeout(this.anchorDebounceTimer)
this.anchorDebounceTimer = null
}
if (this.getType() !== 'node') {
return
}
const group = this.getContainer()
if (!group.anchorShapes) {
group.anchorShapes = []
group.keyShape = this
const bbox = this.getBBox()
this.getShowAnchorPoints().forEach((point, index) => {
const anchor = createAnchor(index, {
x: bbox.width * point[0],
y: bbox.height * point[1]
}, group);
group.anchorShapes.push(anchor)
})
} else {
group.anchorShapes.forEach(a => {
a.show()
a.toFront()
})
}
graph.paint()
}
Item.prototype.hideAnchor = function (graph) {
if (graph.get('onDragEdge') === true) {
return
}
if (!!this.anchorDebounceTimer) {
return;
} else {
this.anchorDebounceTimer = setTimeout(() => {
try {
if (this.getType() !== 'node') {
return
}
const group = this.getContainer()
if (!group.anchorShapes) {
return;
} else {
group.anchorShapes.forEach(a => a.hide())
}
this.anchorDebounceTimer = null
graph.paint()
} catch (e) {
}
}, 100)
}
}
Item.prototype.clearAnchor = function () {
try {
const group = this.getContainer()
if (!!group.anchorShapes && group.anchorShapes.length > 0) {
group.anchorShapes.forEach(i => i.remove())
}
} catch (e) {
// console.error(e)
}
}
export function createAnchor(index, style, group) {
const anchorContainer = group.addGroup();
const anchor = new Item({
type: 'anchor',
group: anchorContainer,
capture: false,
index,
isActived: false,
model: {
style: {
...style,
...GraphStyle.anchorStyle,
cursor: editorStyle.cursor.hoverEffectiveAnchor,
}
},
});
anchor.index = index
anchor.isAnchor = true;
anchor.toFront();
let hotpot;
anchor.hideHotpot = function () {
hotpot.remove()
}
anchor.showHotpot = function () {
hotpot = anchorContainer.addShape('marker', {
attrs: {
...style,
...GraphStyle.anchorHotsoptStyle
}
});
hotpot.toFront();
anchor.getKeyShape().toFront();
};
anchor.setActived = function () {
anchor.update({style: {...GraphStyle.anchorPointHoverStyle}});
};
anchor.clearActived = function () {
anchor.update({style: {...GraphStyle.anchorStyle}});
};
anchor.setHotspotActived = function (act) {
hotpot &&
(act ?
hotpot.attr(GraphStyle.anchorHotsoptActivedStyle)
: hotpot.attr(GraphStyle.anchorHotsoptStyle))
};
return anchorContainer;
};
export function registerAnchor(G6) {
G6.Shape.registerFactory('anchor', {
defaultShapeType: 'marker'
});
G6.Shape.registerAnchor('single-anchor', G6.Util.mix({}, SingleShapeMixin, {
itemType: 'anchor',
drawShape(cfg, group) {
const shapeType = this.shapeType;
const style = this.getShapeStyle(cfg);
const shape = group.addShape(shapeType, {
attrs: style
});
return shape;
},
setState(name, value, item) {
if (name === 'active-anchor') {
if (value) {
this.update({style: {...GraphStyle.anchorPointHoverStyle}}, item);
} else {
this.update({style: {...GraphStyle.anchorStyle}}, item);
}
}
}
}));
G6.Shape.registerAnchor('marker', {shapeType: 'marker'}, 'single-anchor');
}