gsoc: colour choosers

[Adam]

hi,
here is the current text of my gsoc proposal, request for comments..

II) PROJECT GOALS
During this GSoC I would deliver a docker, which can be configured to show  
all or only some of this things:
A configurable colour selector with the following options
Options for shape of the selector
eg: Rings with picker, squares, wheels, mixing sliders
Pipette
Menu with additional options (see below)
Old and new colour
Details can be found in a mockup [1]
Ring of harmonic colours

A selector similar to the one of MyPaint ([2])
It shows shades of the current colour.

Shades of current colour for quick access in a seperate widget, shown like  
patches, so it would use less space, than the mypaint selector. The number  
of shades will be configurable.

Common colours in the image.
There will be an algorithm, which takes the x mostly used colours in the  
current image and display them. This lets artists work with an existing  
“image's colour palette” and so they don't have to create it by hand.
Colour patches, that can be attached to the selectors in a space saving  
way (no need of another docker, that needs too much space).
A palette with presets and GHNS integration

I plan to create a docker and a popup that is available ether through the  
quick sketch palette ([3]) or a shortcut, so that it is available quickly  
with the mouse or the stylus.
The selector will only show colours from the current colourspace, so there  
won't be a difference between the selected colour and the one drawn on the  
canvas anymore. In [7] and [8] you can see the difference between the CMYK  
(printing) and RGB (monitor) color space, green and cyan are not as  
intense in CMYK. This is very important to everybody, who wants to print.  
There will be a switch to enable a red yellow blue mode, which gives  
certain colours, that are met in real life often, more space [4].
There will be drag n drop and the widgets should be hideable, resizeable  
and space efficient.
For KOffice apps, that don't need as much options, as Krita, there will be  
also be a cut back version as a new colour dialogue.


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