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+# 1. InputBox
+
+InputBox(u32 BoxX, u32 BoxY, u32 BoxWidth, u32 BoxHeight,
+              wchar_t *Text, u32 TextLen, u32 TextIndex,
+              Bool Focused)
+
+TextIndex is where the edit cursor is in the text, so where the text should be displayed?
+
+It is most user friendly when the text moves as least as possible, so giving an offset will make it
+scroll each time the user moves the cursor.  No it should only move when the user moves the cursor
+out of bounds.
+
+
+There should be cursor logic and text logic
+
+# 2. Redraw text based on cursor
+
+```c
+void
+Redraw(u32 DrawnStart, u32 DrawnEnd)
+{
+
+}
+
+Box(BoxX, BoxY, Width, Height);
+BoxedText(X+1, Y+1, Width-2, Height-2,
+          TextLen, Text);
+
+if (ev.key == TB_KEY_ARROW_LEFT)
+{
+    CursorX--;
+    TextIndex--;
+}
+else if (ev.key == TB_KEY_ARROW_RIGHT)
+{
+    CursorX++;
+    TextIndex++;
+}
+else if (ev.key == TB_KEY_ARROW_UP)
+{
+    // Scroll Up, Update TextIndex, Redraw
+}
+else if (ev.key == TB_KEY_ARROW_DOWN)
+{
+    // Scroll Down, Update TextIndex, Redraw
+}
+else if (ev.ch)
+{
+    Text[Textlen++] = ev.ch;
+    TextIndex++;
+    CursorX++;
+}
+
+if (CursorX == BoxX + Width)
+{
+    // Scroll Down || Next Line (if empty)
+    // Update TextIndex, Redraw
+}
+else if (CursorX == BoxX)
+{
+    // Scroll up, Update TextIndex, Redraw
+}
+````
+It can be deterministic how we draw the text, and the cursor position is only needed to know where
+to insert text.
+
+1. Do text insertion
+2. Redrawing