Graph improvements

Speaking of the statistics page...

I have put together a patch that improves the functionality of "MyGraph".

The following addition/changes have been made:

+ Better color-variation

By changing luminosity and saturation in addition to hue the colors are easier to distinguish if there are many of them. The small downside is that all of them are not as candy-lookin any more.

+ Stacked tooltips

If more datapoints end up on top of eachother in the line graph, the tooltip now shows all the datapoints instead of the first one found.

+ Lower font size limit

Font sizes are not allowed to be smaller than readable.

+ Auto adjusting legend

If the window gets small enough, it won't bother to paint the legend. It gets too crowded to be useful anyway. The information in the tooltips is enough then.

+ Stacked graph

The line and bar graph can now be generated as stacked by passing "true" as the second parameter to SetGraphType(GraphType eType, bool bStackedGraph). (Bitte Lübbe! ;-) )

I would like to suggest the addition of a number of small buttons (or a combobox) on the Statistics page to facilitate switching between the five available diagram types.

Feedback on the patch is most welcome!

Hans-Emil

PS. I have only tested the class "stand alone" as I have not a working TSVN build environment. DS.

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