The example fails to compile on some platforms due to an existing
circular dependency. To fix this issue, the inclusion of
`spreadformula.h` has been moved to the related .cpp files, and a
forward declaration is used in the `spreadmodel.h` file instead.
Fixes: QTBUG-128272
Pick-to: 6.8
Change-Id: Ic2c589f9126e0ba0eed6ffe5150bacd4afa6d239
Reviewed-by: Santhosh Kumar <santhosh.kumar.selvaraj@qt.io>
The example demonstrates a Spreadsheet that provides adding, editing,
and deleting data, and also the ability to write formulas for numeric
data. Also, it's possible to select cells, rows, and columns for
deleting them or their data, copying or cutting the data, and dragging
them to other places. The user can hide columns or rows, and also show
them again. Thanks to the reordering API, columns and rows can be
reordered and also can be reset to the default order.
There is a SpreadModel class which handles the entered data. It only
stores the data of the cells that is provided by the user. It means
that it does not create any empty data structure for empty cells, in
order to reduce memory usage.
Task-number: QTBUG-125767
Pick-to: 6.8
Change-Id: I1d9cc5b4b8d902257e9ed508d4a712b0574490f3
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
MohammadHossein Qanbari