Monday, 6th November 2006
In light of the TMDC, I thought I'd package up the .NET class for easy text-mode graphics I'd been throwing together.
Once initialised, all you need are two things; the Graphics object it provides to handle your drawing, and the Refresh() method to update the console with whatever it is you've been composing.
It relies on a fairly large palette (128KB) which is hugely wasted in the current version - it maps every 16-bit colour value (R5G6B5) to an attribute/character pair. For the purpose of not looking extremely ugly, the palette provided only uses a few basic characters, not the full range, hence that 128KB could be reduced somewhat.
If you want to provide your own palette, it's just a sequence of two byte pairs (character then attribute) for each of the 16-bit colour values.
You'll need to compile with the unsafe flag set.
Download VC♯ project (with a quick-and-dirty sample program - an oldschool flame that spins around, some curves and some alpha-blended text). ClearType does make the text look a bit odd.
// Set window to 80x50 TextSharp TS = new TextSharp(80, 50); // Set window title text TS.Title = "TextSharp Demo"; // Set up some pleasant antialiasing/filtering TS.Graphics.SmoothingMode = SmoothingMode.HighQuality; TS.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic; // Now use the Graphics object like any other TS.Graphics.Clear(Color.White); TS.Graphics.DrawLine(Pens.Black, 0, 0, 80, 50); // Update console window TS.Refresh();
The document browser progresses (slowly) - it now exports and imports to/from a single file (the .docpack) and has a nifty search-as-you-type index.
Why is it that all you need to do to solve all your .NET WinForms woes is to make the control invisible then visible again? When clearing/adding large numbers of nodes to a TreeView control, you get a dancing scrollbar that pauses the app for a second or so - make the control invisible then visible again and it's instant. (This is using Clear and AddRange - it's not as if I'm adding them one-by-one).