BarChartPlotter is a simple Bar Chart plotting widget.
This is a technical preview only - BarChartPlotter will be included into QSint::Charts library.
BarChartPlotter provides easy-to-use API and performs fast \"native\" painting (directly via QPainter).
Currently it allows to draw Bar Charts of 2 types: Stacked and Column.
BarChartPlotter follows MVC ideology using QAbstractItemModel as data source.