Created attachment 117430 [details]
insert character dialog inside a chart in Kubuntu 14.04

In chart, the "insert special character" dialog only allows to insert a symbols of the system font. 

I'm attaching 2 screenshots: one made under Kubuntu 14.04 using LibO 3.5 and other from Windows XP with LibO 4.1.

Steps:
1) Create a chart
2) Add any title (chart title, axis title...)
3) Add a special character 

Result
The insert character dialog only shows glyphs from a system font. In the Linux screenshot, Droid Sans is my system font. On the other hand, MS San Serif is a system font in Windows.

Expected:
The default typeface shown in the "insert character" dialog should coincide the typeface used inside the text box one wants to insert any character.