52 lines
No EOL
1.6 KiB
JavaScript
52 lines
No EOL
1.6 KiB
JavaScript
/**
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* Plugin that always creates a small black circle to represent a join
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* when a new edge is dropped with the target end in free space
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*/
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Draw.loadPlugin(function(ui) {
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mxConnectionHandler.prototype.createTargetVertex = function(evt, source)
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{
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// Uses the first non-relative source
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var geo = this.graph.getCellGeometry(source);
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while (geo != null && geo.relative)
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{
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source = this.graph.getModel().getParent(source);
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geo = this.graph.getCellGeometry(source);
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}
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// OVERRIDE clone to create a big filled black circle instead of cloning the source
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var clone = this.graph.createVertex(this.graph.getModel().getParent(source), null, null, 0, 0, 6, 6, 'ellipse;fillColor=#000000;fixedPoints=0');
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var geo = this.graph.getModel().getGeometry(clone);
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if (geo != null)
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{
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var point = this.graph.getPointForEvent(evt);
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geo.x = this.graph.snap(point.x - geo.width / 2) - this.graph.panDx / this.graph.view.scale;
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geo.y = this.graph.snap(point.y - geo.height / 2) - this.graph.panDy / this.graph.view.scale;
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// Aligns with source if within certain tolerance
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if (this.first != null)
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{
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var sourceState = this.graph.view.getState(source);
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if (sourceState != null)
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{
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var tol = this.getAlignmentTolerance();
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if (Math.abs(this.graph.snap(this.first.x) -
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this.graph.snap(point.x)) <= tol)
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{
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geo.x = sourceState.x;
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}
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else if (Math.abs(this.graph.snap(this.first.y) -
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this.graph.snap(point.y)) <= tol)
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{
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geo.y = sourceState.y;
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}
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}
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}
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}
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return clone;
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};
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}); |