Colour Manager

The Colour Manager

 * The Colour manager will be replaced by an equivalent GUI in the Resource Manager in 1.3.6+
 * The colour manager is defined by colorm.cpp
 * It's called by scribus.cpp as follows:
 * ColorManager* dia = new ColorManager(this, edc, doc, prefsManager->colorSetName, prefsManager->appPrefs.CustomColorSets);


 * The constructors parameters are named as:
 * QWidget* parent = this (cannot be used outside of the constructor)
 * ColorList EditColors = doco = edc = (HaveDoc ? doc->PageColors : prefsManager->colorSet)
 * ScribusDoc* m_Doc = doc
 * QString* docColSet = prefsManager->colorSetName (cannot be used outside of the constructor)
 * QStringList customColSet = custColSet = prefsManager->appPrefs.CustomColorSets
 * The list of colours are read by the colour manager from the palettes and written to a m_Doc property.
 * The list of used colors can be read throug void m_Doc->getUsedColor(& ColorList &colorsToUse, bool spot)</tt>

Adding a preference field

 * Add a property in prefsmanager.h</tt>
 * Add a method for reading and one for writing it in prefsmanager.cpp</tt>

Setting the preference from the Colour Management Dialog

 * Get the prefsManager like:
 * PrefsContext* dirs = PrefsManager::instance->prefsFile->getContext("dirs");


 * Add a checkbox to the dialog
 * Read and set the preference
 * "Notify" the strings that are to be translated
 * Correctly filter the list according to the preference

Filter out the hidden colours in every colour list

 * Find all the colour lists
 * Check if the unused are to be shown, and if not, don't show them (probably, through asking m_Doc->getUsedColor</tt>
 * When the preference is changed, all the "created" lists are to be updated (cf. changing the language from preferences)

Non alphabetical order of the colours
Some general ideas:
 * Put b/w on top
 * Put grayscales at the end

An implementation proposal by kirun0: This was, of course for a single fixed set, the parameters will probablary need tweaking for any other given set
 * First, all greyscale colours were moved to the end of the list.
 * Then, I converted all colours to HSL colourspace.
 * The colours were grouped by hue, into chunks of about 30 degrees.
 * They were then sorted by sat+lum, so the darker colours came first, followed by the bold colours, and the light *and washed out ones last (within the group)

Filter by color type

 * All
 * Used
 * RGB
 * CMYK
 * Spot
 * Grayscales

Accessibility
Faramond asked to extend the drop-down boxes in order to allow jumps to a desired named color by typing the first few letters of its name (like in a file manager.) The drop-downs could also be modified such that typing in a number jumps to color with the same number.