Waimea

Compact standalone chronogram editor for Windows using OpenGL, written in good ol' VB6. Inspired by Wavedrom.

Download v0.20 HERE.

Why VB6 ?

I still live in 1999
Super fast dev cycle for GUI apps
Small executables
No framework, only requires a 1.3MB dll (msvbvm60.dll)
Rather slow execution, but here we only need fast drawing
Can't be worse than Java !
I believe that a web browser is a program to browse the web, not an application host
Not portable :( But should run in Wine :)

Also: No install, no registry keys.

Features

Markdown syntax very similar to Wavedrom's
Fast and clean OpenGL rendering
Drag-scroll for large chronograms
Rulers
Time measurements
Popup notes (pins)
Modifiable layout/appearence (not as flexible as Wavedrom)
To come: Export to image (and svg ?)

Usage

Holding Alt shows all popup notes (if enabled)
Right click and drag to measure time
Double left click to reset view to origin

Syntax

A wave name starts with name: and a string.

A wave definition starts with wave::

. (dot): Repeat last block (except for H and L, they become h and l`)
z : Hi-Z
x : Undefined
l : Low
h : High
L : Falling with arrow
H : Rising with arrow
n : Clock negative
p : Clock positive
N : Clock negative with arrow
P : Clock positive with arrow
= : Data (grey)
0~5 : Data (colored)

Text for data zones starts with data: and strings separated by commas. A vertical ruler can be set with ruler:, a x position, and a color index. A note can be added with pin:, a x position, a color index, and a string. A wave group is started with group:, a string, and a color index. A group is ended with groupend. Groups can be nested.

Layout.txt format

A block definition starts with the DEF keyword followed by the letter assigned to the block. Any text after the letter is ignored, it can be used as a comment to describe the block.

The drawing commands follow on the next line. The currently supported commands are:

SP: Start Point. Required, defines the block's starting point for hookup. Takes x,y.
EP: Ending Point. Required, defines the block's ending point for hookup. Takes x,y.
L: Line. Simply draws a line. Takes x1,y1:x2,y2.
LS: Line strip. Draws multiples lines, one connected to the other. Takes x1,y1:x2,y2:x3,y3...
SH: Shape. Draws a filled polygon. Takes x1,y1:x2,y2:x3,y3...
LC: Reset color to line color. Useful for colored blocks (data).

Coordinates 0,0 are top-left. Sizes should be normalized to 16x16.

For example, drawing a filled square clockwise: SH 0,0:16,0:16,16:0,16

known bugs

Might crash on badly formatted layout.txt file.
Drag-scroll not well optimized, can be laggy on some setups. Will have to draw in a buffer and scroll the buffer instead of redrawing everything each time.

furrtek / Waimea