Method renderCursor

lib/renderer.ts:713–742

* Render cursor

(x: number, y: number)

   * Render cursor
   */
  private renderCursor(x: number, y: number): void {
    const cursorX = x * this.metrics.width;
    const cursorY = y * this.metrics.height;

    this.ctx.fillStyle = this.theme.cursor;

    switch (this.cursorStyle) {
      case 'block':
        // Full cell block
        this.ctx.fillRect(cursorX, cursorY, this.metrics.width, this.metrics.height);
        break;

      case 'underline':
        // Underline at bottom of cell
        const underlineHeight = Math.max(2, Math.floor(this.metrics.height * 0.15));
        this.ctx.fillRect(
          cursorX,
          cursorY + this.metrics.height - underlineHeight,
          this.metrics.width,
          underlineHeight
        );
        break;

      case 'bar':
        // Vertical bar at left of cell
        const barWidth = Math.max(2, Math.floor(this.metrics.width * 0.15));
        this.ctx.fillRect(cursorX, cursorY, barWidth, this.metrics.height);
        break;
    }
  }

  // ==========================================================================
  // Cursor Blinking