gtkTreeViewScrollToCell: gtkTreeViewScrollToCell
Description
Moves the alignments of tree.view
to the position specified by column
and
path
. If column
is NULL
, then no horizontal scrolling occurs. Likewise,
if path
is NULL
no vertical scrolling occurs. At a minimum, one of column
or path
need to be non-NULL
. row.align
determines where the row is
placed, and col.align
determines where column
is placed. Both are expected
to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
right/bottom alignment, 0.5 means center.Usage
gtkTreeViewScrollToCell(object, path, column = NULL, use.align = FALSE, row.align = 0, col.align = 0)
Arguments
path
The path of the row to move to, or NULL
. [ allow-none ] use.align
whether to use alignment arguments, or FALSE
.
row.align
The vertical alignment of the row specified by path
.
col.align
The horizontal alignment of the column specified by column
.
Details
If use.align
is FALSE
, then the alignment arguments are ignored, and the
tree does the minimum amount of work to scroll the cell onto the screen.
This means that the cell will be scrolled to the edge closest to its current
position. If the cell is currently visible on the screen, nothing is done.
This function only works if the model is set, and path
is a valid row on the
model. If the model changes before the tree.view
is realized, the centered
path will be modified to reflect this change.