getInternalLine()

in karavan-space/src/designer/route/DslConnections.tsx [264:369]

• 84 lines of code
• 12 McCabe index (conditional complexity)

    getInternalLine(uri: string, key: string, className: string, fromX: number, fromY: number, r: number, i: number) {
        const target = Array.from(this.state.steps.values())
            .filter(s => s.step.dslName === 'FromDefinition')
            .filter(s => (s.step as any).uri && (s.step as any).uri === uri)[0];
        if (target) {
            const targetX = target.headerRect.x + target.headerRect.width / 2 - this.props.left;
            const targetY = target.headerRect.y + target.headerRect.height / 2 - this.props.top;
            const gap = 100;
            const add = 0.2;

            // right
            if (targetX - fromX >= gap) {
                const startX = fromX + r;
                const startY = fromY;
                const endX = targetX - r * 2 + 4;
                const endY = targetY;

                const coefX = 24 + (i * add);
                const coefY = (targetY > fromY) ? 24 : -24;

                const pointX1 = startX + coefX;
                const pointY1 = startY;
                const pointX2 = startX + coefX;
                const pointY2 = startY + coefY;

                const pointLX = pointX1;
                const pointLY = targetY - coefY;

                const pointX3 = pointLX;
                const pointY3 = endY;
                const pointX4 = pointLX + coefX;
                const pointY4 = endY;

                return this.getInternalPath(key, className, startX, startY, pointX1, pointY1, pointX2, pointY2, pointLX, pointLY, pointX3, pointY3, pointX4, pointY4, endX, endY);
            } else if (targetX > fromX && targetX - fromX < gap) {
                const startX = fromX - r;
                const startY = fromY;
                const endX = targetX - r * 2 + 4;
                const endY = targetY;

                const coefX = -24 - (i * add);
                const coefY = (targetY > fromY) ? 24 : -24;

                const pointX1 = startX + coefX;
                const pointY1 = startY;
                const pointX2 = startX + coefX;
                const pointY2 = startY + coefY;

                const pointLX = pointX1;
                const pointLY = targetY - coefY;

                const pointX3 = pointLX;
                const pointY3 = endY;
                const pointX4 = pointLX - coefX/2;
                const pointY4 = endY;

                return this.getInternalPath(key, className, startX, startY, pointX1, pointY1, pointX2, pointY2, pointLX, pointLY, pointX3, pointY3, pointX4, pointY4, endX, endY);
            } else if (targetX <= fromX && fromX - targetX < gap) {
                const startX = fromX + r;
                const startY = fromY;
                const endX = targetX + r * 2 - 4;
                const endY = targetY;

                const coefX = 24 + (i * add);
                const coefY = (targetY > fromY) ? 24 : -24;

                const pointX1 = startX + coefX;
                const pointY1 = startY;
                const pointX2 = startX + coefX;
                const pointY2 = startY + coefY;

                const pointLX = pointX1;
                const pointLY = targetY - coefY;

                const pointX3 = pointLX;
                const pointY3 = endY;
                const pointX4 = pointLX - coefX/2;
                const pointY4 = endY;

                return this.getInternalPath(key, className, startX, startY, pointX1, pointY1, pointX2, pointY2, pointLX, pointLY, pointX3, pointY3, pointX4, pointY4, endX, endY);
            } else {
                const startX = fromX - r;
                const startY = fromY;
                const endX = targetX + r * 2 - 4;
                const endY = targetY;

                const coefX = -24 - (i * add);
                const coefY = (targetY > fromY) ? 24 : -24;

                const pointX1 = startX + coefX;
                const pointY1 = startY;
                const pointX2 = startX + coefX;
                const pointY2 = startY + coefY;

                const pointLX = pointX1;
                const pointLY = targetY - coefY;

                const pointX3 = pointLX;
                const pointY3 = endY;
                const pointX4 = pointLX + coefX;
                const pointY4 = endY;

                return this.getInternalPath(key, className, startX, startY, pointX1, pointY1, pointX2, pointY2, pointLX, pointLY, pointX3, pointY3, pointX4, pointY4, endX, endY);
            }
        }
    }