private scaleMainView()

in src/WordCloud.ts [1562:1607]
33 lines of code
2 McCabe index (conditional complexity)

    private scaleMainView(wordCloudDataView: WordCloudDataView): void {
        const rectangles: ClientRect[] = wordCloudDataView.data.map((dataPoint: WordCloudDataPoint) => {
            const hw: number = dataPoint.width / 2,
                hh: number = dataPoint.height / 2;

            return <ClientRect>{
                left: dataPoint.x - hw,
                top: dataPoint.y - hh,
                right: dataPoint.x + hw,
                bottom: dataPoint.y + hh
            };
        });

        if (lodash.isEmpty(rectangles)) {
            return;
        }

        const rectangle: ClientRect = <ClientRect>{
            left: lodash.minBy(rectangles, (rect: ClientRect) => rect.left).left,
            top: lodash.minBy(rectangles, (rect: ClientRect) => rect.top).top,
            right: lodash.maxBy(rectangles, (rect: ClientRect) => rect.right).right,
            bottom: lodash.maxBy(rectangles, (rect: ClientRect) => rect.bottom).bottom
        };

        const rectWidth: number = rectangle.right - rectangle.left,
            rectHeight: number = rectangle.bottom - rectangle.top;

        const scaleByX: number = this.layout.viewportIn.width / rectWidth,
            scaleByY: number = this.layout.viewportIn.height / rectHeight,
            scale: number = Math.min(scaleByX, scaleByY);

        const x: number = -rectangle.left * scale + WordCloud.ScalePositionOffset,
            y: number = -rectangle.top * scale + WordCloud.ScalePositionOffset;

        /**
         * Note: This construction fixes bug #6343.
         * Edge renders words out of the canvas, so we use this hack to fix it.
         * The line-height doesn't work with svg, but it call the render cycle of the browser.
         */
        this.main
            .style("line-height", WordCloud.TheFirstLineHeight); // Note: This construction fixes bug #6343.

        this.main
            .attr("transform", translateAndScale(x, y, scale))
            .style("line-height", WordCloud.TheSecondLineHeight); // Note: This construction fixes bug #6343.
    }