System.Windows.Forms.ListView.CalcTextSize C# (CSharp) Method

		private void CalcTextSize ()
		{
			// clear the old value
			text_size = Size.Empty;

			if (items.Count == 0)
				return;

			text_size = BiggestItem (0);

			if (view == View.LargeIcon && this.label_wrap) {
				Size temp = Size.Empty;
				if (this.check_boxes)
					temp.Width += 2 * this.CheckBoxSize.Width;
				int icon_w = LargeImageList == null ? 12 : LargeImageList.ImageSize.Width;
				temp.Width += icon_w + max_wrap_padding;
				// wrapping is done for two lines only
				if (text_size.Width > temp.Width) {
					text_size.Width = temp.Width;
					text_size.Height *= 2;
				}
			}
			else if (view == View.List) {
				// in list view max text shown in determined by the
				// control width, even if scolling is enabled.
				int max_wd = this.Width - (this.CheckBoxSize.Width - 2);
				if (this.small_image_list != null)
					max_wd -= this.small_image_list.ImageSize.Width;

				if (text_size.Width > max_wd)
					text_size.Width = max_wd;
			}

			// we do the default settings, if we have got 0's
			if (text_size.Height <= 0)
				text_size.Height = this.Font.Height;
			if (text_size.Width <= 0)
				text_size.Width = this.Width;

			// little adjustment
			text_size.Width += 2;
			text_size.Height += 2;
		}