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72 lines
1.9 KiB
72 lines
1.9 KiB
class NodeBase {
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constructor(options, body, labelModule) {
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this.body = body;
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this.labelModule = labelModule;
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this.setOptions(options);
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this.top = undefined;
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this.left = undefined;
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this.height = undefined;
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this.width = undefined;
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this.radius = undefined;
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this.boundingBox = {top: 0, left: 0, right: 0, bottom: 0};
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}
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setOptions(options) {
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this.options = options;
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}
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_distanceToBorder(angle) {
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var borderWidth = 1;
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return Math.min(
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Math.abs(this.width / 2 / Math.cos(angle)),
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Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
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}
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enableShadow(ctx) {
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if (this.options.shadow.enabled === true) {
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ctx.shadowColor = 'rgba(0,0,0,0.5)';
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ctx.shadowBlur = this.options.shadow.size;
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ctx.shadowOffsetX = this.options.shadow.x;
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ctx.shadowOffsetY = this.options.shadow.y;
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}
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}
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disableShadow(ctx) {
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if (this.options.shadow.enabled === true) {
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ctx.shadowColor = 'rgba(0,0,0,0)';
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ctx.shadowBlur = 0;
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ctx.shadowOffsetX = 0;
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ctx.shadowOffsetY = 0;
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}
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}
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enableBorderDashes(ctx) {
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if (this.options.shapeProperties.borderDashes !== false) {
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if (ctx.setLineDash !== undefined) {
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let dashes = this.options.shapeProperties.borderDashes;
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if (dashes === true) {
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dashes = [5,15]
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}
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ctx.setLineDash(dashes);
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}
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else {
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console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
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this.options.shapeProperties.borderDashes = false;
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}
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}
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}
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disableBorderDashes(ctx) {
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if (this.options.shapeProperties.borderDashes !== false) {
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if (ctx.setLineDash !== undefined) {
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ctx.setLineDash([0]);
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}
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else {
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console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
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this.options.shapeProperties.borderDashes = false;
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}
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}
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}
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}
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export default NodeBase;
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