import NodeBase from '../util/NodeBase' class CircleImageBase extends NodeBase { constructor(options, body, labelModule) { super(options, body, labelModule); this.labelOffset = 0; this.imageLoaded = false; } setOptions(options, imageObj) { this.options = options; if (imageObj) { this.imageObj = imageObj; } } /** * This function resizes the image by the options size when the image has not yet loaded. If the image has loaded, we * force the update of the size again. * * @private */ _resizeImage() { let force = false; if (!this.imageObj.width || !this.imageObj.height) { // undefined or 0 this.imageLoaded = false; } else if (this.imageLoaded === false) { this.imageLoaded = true; force = true; } if (!this.width || !this.height || force === true) { // undefined or 0 var width, height, ratio; if (this.imageObj.width && this.imageObj.height) { // not undefined or 0 width = 0; height = 0; } if (this.options.shapeProperties.useImageSize === false) { if (this.imageObj.width > this.imageObj.height) { ratio = this.imageObj.width / this.imageObj.height; width = this.options.size * 2 * ratio || this.imageObj.width; height = this.options.size * 2 || this.imageObj.height; } else { if (this.imageObj.width && this.imageObj.height) { // not undefined or 0 ratio = this.imageObj.height / this.imageObj.width; } else { ratio = 1; } width = this.options.size * 2; height = this.options.size * 2 * ratio; } } else { // when not using the size property, we use the image size width = this.imageObj.width; height = this.imageObj.height; } this.width = width; this.height = height; this.radius = 0.5 * this.width; } } _drawRawCircle(ctx, x, y, selected, hover, size) { 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.networkScaleInv; 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.circle(x, y, size); // draw shadow if enabled this.enableShadow(ctx); // draw the background ctx.fill(); // disable shadows for other elements. this.disableShadow(ctx); //draw dashed border if enabled, save and restore is required for firefox not to crash on unix. ctx.save(); this.enableBorderDashes(ctx); //draw the border ctx.stroke(); //disable dashed border for other elements this.disableBorderDashes(ctx); ctx.restore(); } _drawImageAtPosition(ctx) { if (this.imageObj.width != 0) { // draw the image ctx.globalAlpha = 1.0; // draw shadow if enabled this.enableShadow(ctx); // draw image ctx.drawImage(this.imageObj, this.left, this.top, this.width, this.height); // disable shadows for other elements. this.disableShadow(ctx); } } _drawImageLabel(ctx, x, y, selected) { var yLabel; var offset = 0; if (this.height !== undefined) { offset = this.height * 0.5; var labelDimensions = this.labelModule.getTextSize(ctx); if (labelDimensions.lineCount >= 1) { offset += labelDimensions.height / 2; } } yLabel = y + offset; if (this.options.label) { this.labelOffset = offset; } this.labelModule.draw(ctx, x, yLabel, selected, 'hanging'); } } export default CircleImageBase;