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83 lines
2.5 KiB
83 lines
2.5 KiB
'use strict';
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import NodeBase from '../util/NodeBase'
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class Icon extends NodeBase {
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constructor(options, body, labelModule) {
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super(options, body, labelModule);
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}
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resize(ctx) {
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if (this.width === undefined) {
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var margin = 5;
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var iconSize = {
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width: Number(this.options.icon.size),
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height: Number(this.options.icon.size)
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};
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this.width = iconSize.width + 2 * margin;
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this.height = iconSize.height + 2 * margin;
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this.radius = 0.5*this.width;
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}
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}
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draw(ctx, x, y, selected, hover) {
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this.resize(ctx);
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this.options.icon.size = this.options.icon.size || 50;
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this.left = x - this.width * 0.5;
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this.top = y - this.height * 0.5;
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this._icon(ctx, x, y, selected);
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if (this.options.label !== undefined) {
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var iconTextSpacing = 5;
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this.labelModule.draw(ctx, x, y + this.height * 0.5 + iconTextSpacing, selected);
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}
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this.updateBoundingBox(x,y)
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}
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updateBoundingBox(x,y) {
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this.boundingBox.top = y - this.options.icon.size * 0.5;
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this.boundingBox.left = x - this.options.icon.size * 0.5;
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this.boundingBox.right = x + this.options.icon.size * 0.5;
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this.boundingBox.bottom = y + this.options.icon.size * 0.5;
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if (this.options.label !== undefined && this.labelModule.size.width > 0) {
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var iconTextSpacing = 5;
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this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
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this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
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this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height + iconTextSpacing);
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}
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}
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_icon(ctx, x, y, selected) {
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let iconSize = Number(this.options.icon.size);
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if (this.options.icon.code !== undefined) {
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ctx.font = (selected ? "bold " : "") + iconSize + "px " + this.options.icon.face;
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// draw icon
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ctx.fillStyle = this.options.icon.color || "black";
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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// draw shadow if enabled
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this.enableShadow(ctx);
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ctx.fillText(this.options.icon.code, x, y);
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// disable shadows for other elements.
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this.disableShadow(ctx);
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}
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else {
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console.error('When using the icon shape, you need to define the code in the icon options object. This can be done per node or globally.')
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}
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}
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distanceToBorder(ctx, angle) {
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this.resize(ctx);
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return this._distanceToBorder(angle);
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}
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}
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export default Icon;
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