You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.1 KiB
73 lines
2.1 KiB
'use strict';
|
|
|
|
import NodeBase from '../util/NodeBase'
|
|
|
|
class Ellipse extends NodeBase {
|
|
constructor(options, body, labelModule) {
|
|
super(options, body, labelModule);
|
|
}
|
|
|
|
resize(ctx, selected) {
|
|
if (this.width === undefined) {
|
|
var textSize = this.labelModule.getTextSize(ctx, selected);
|
|
|
|
this.width = textSize.width * 1.5;
|
|
this.height = textSize.height * 2;
|
|
if (this.width < this.height) {
|
|
this.width = this.height;
|
|
}
|
|
this.radius = 0.5*this.width;
|
|
}
|
|
}
|
|
|
|
draw(ctx, x, y, selected, hover) {
|
|
this.resize(ctx, selected);
|
|
this.left = x - this.width * 0.5;
|
|
this.top = y - this.height * 0.5;
|
|
|
|
var borderWidth = this.options.borderWidth;
|
|
var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
|
|
|
|
ctx.strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;
|
|
|
|
ctx.lineWidth = (selected ? selectionLineWidth : borderWidth);
|
|
ctx.lineWidth /= this.body.view.scale;
|
|
ctx.lineWidth = Math.min(this.width, ctx.lineWidth);
|
|
|
|
ctx.fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;
|
|
ctx.ellipse(this.left, this.top, this.width, this.height);
|
|
|
|
// draw shadow if enabled
|
|
this.enableShadow(ctx);
|
|
ctx.fill();
|
|
|
|
// disable shadows for other elements.
|
|
this.disableShadow(ctx);
|
|
|
|
ctx.stroke();
|
|
|
|
this.updateBoundingBox(x,y);
|
|
this.labelModule.draw(ctx, x, y, selected);
|
|
}
|
|
|
|
updateBoundingBox(x,y) {
|
|
this.left = x - this.width * 0.5;
|
|
this.top = y - this.height * 0.5;
|
|
|
|
this.boundingBox.left = this.left;
|
|
this.boundingBox.top = this.top;
|
|
this.boundingBox.bottom = this.top + this.height;
|
|
this.boundingBox.right = this.left + this.width;
|
|
}
|
|
|
|
distanceToBorder(ctx, angle) {
|
|
this.resize(ctx);
|
|
var a = this.width * 0.5;
|
|
var b = this.height * 0.5;
|
|
var w = (Math.sin(angle) * a);
|
|
var h = (Math.cos(angle) * b);
|
|
return a * b / Math.sqrt(w * w + h * h);
|
|
}
|
|
}
|
|
|
|
export default Ellipse;
|