Ejemplo n.º 1
0
        /// <summary>
        /// Overwrites whole line at index of row
        /// </summary>
        /// <param name="canvas"></param>
        /// <param name="text"></param>
        /// <param name="row"></param>
        /// <param name="rightAligned"></param>
        public static void WriteLine(this TextCanvas canvas, string text, int?row = null, bool rightAligned = false)
        {
            row = row ?? canvas.CurrentRow;

            if (row.Value < 0 || row.Value > canvas.ContentHeight)
            {
                throw new ArgumentOutOfRangeException(nameof(row), row.Value, "Given row is out of range");
            }

            #region Line-wrapping Logic

            if (text.Length > canvas.ContentWidth)
            {
                List <string> rows = FoldText(text, canvas.ContentWidth);

                rows.Last().Fill(canvas.ContentWidth, FillOptions.Default | FillOptions.OverwriteBaseString);

                if (rightAligned)
                {
                    foreach (var rowString in rows)
                    {
                        for (int i = rowString.Length - 1, j = 0; i >= 0; i--, j++)
                        {
                            canvas.SetCursorPosition(canvas.ContentWidth - j, row.Value + rows.IndexOf(rowString));

                            Console.Write(rowString[i]);
                        }
                    }
                    return;
                }

                foreach (var rowString in rows)
                {
                    canvas.SetCursorPosition(0, row.Value + rows.IndexOf(rowString));

                    Console.Write(rowString);
                }
                return;
            }

            #endregion

            if (rightAligned)
            {
                for (int i = text.Length - 1, j = 0; i >= 0 && j < canvas.ContentWidth; i--, j++)
                {
                    canvas.SetCursorPosition(canvas.ContentWidth - j, row.Value);

                    Console.Write(text[i]);
                }

                return;
            }

            canvas.SetCursorPosition(0, row.Value);

            Console.Write(text);

            canvas.CurrentRow++;
        }
Ejemplo n.º 2
0
        public static void Clear(this TextCanvas canvas, int?rowIndex = null)
        {
            canvas.CurrentRow = 0;

            if (rowIndex == null)
            {
                for (int y = 0; y < canvas.ContentHeight; y++)
                {
                    canvas.SetCursorPosition(0, y);
                    Console.Write(CharacterMap.Space.Repeat(canvas.ContentWidth));
                }
                return;
            }

            // validation
            if (rowIndex.Value > canvas.ContentHeight || rowIndex.Value < 0)
            {
                throw new ArgumentOutOfRangeException(nameof(rowIndex), "Row index cannot overflow canvas's height");
            }

            canvas.SetCursorPosition(0, rowIndex.Value);

            Console.Write(CharacterMap.Space.Repeat(canvas.ContentWidth));
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Writes text on 1 line, does not handle Line-wrapping
        /// </summary>
        /// <exception cref="ArgumentOutOfRangeException">Is thrown if text would overflow from canvas</exception>
        /// <param name="canvas"></param>
        /// <param name="text"></param>
        /// <param name="row">Row of "Visible Content"</param>
        public static void Write(this TextCanvas canvas, string text, int?row = null)
        {
            row = row ?? canvas.CurrentRow;

            int widthIndex = canvas.ScreenBuffer[row.Value].Length;

            // Line-wrapping
            if (widthIndex + text.Length > canvas.ContentWidth)
            {
                throw new ArgumentOutOfRangeException(nameof(text), "Text Overflow");
            }

            canvas.SetCursorPosition(
                widthIndex,
                row.Value);

            Console.Write(text);
        }