LOK: fast tile rendering (text only)

For every tile, the bounding columns and
rows are found. The origin of the device
is set to the top-left corner of the
top-most row and left-most column, respectively.

Because tiles don't have to align with a
column or row, the ScrX and ScrY (Screen Position)
coordinates are set to the offset a tile has
to its top-most row and left-most column.

Rendering of text is super fast as the
minimum area is rendered for a given tile.

However, it doesn't work for embedded objects.
This is addressed in a separate patch.

One pending issue with text is when editing.
The text doesn't correctly render while
editing a cell. This is almost certainly
because the edit control is not rendered
at the correct offset (in the middle top
row it can be seen showing up to the right
of where it should be).

Reviewed-on: https://gerrit.libreoffice.org/26203
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>
Tested-by: Ashod Nakashian <ashnakash@gmail.com>
(cherry picked from commit ecc33ce663625ae1114a56fe3d1625c5ed274685)

Change-Id: I6f1ea0aa2f19a7fda926f596a2009290680c593c
Reviewed-on: https://gerrit.libreoffice.org/26375
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>

0 files changed, 0 insertions, 0 deletions