GtkCTree::node_set_shift
void node_set_shift(
GtkCTreeNode
node
, int column, int vertical, int horizontal);
Shift the column of the given cell the given amounts in pixels.
Moves the column display inside the area reserved for the display.
E.g. when you set the vertical to 20 and the height of the row is just
10, then the cell won't be visible any more.
This function can be used to move the icon or the text a given amount left/right
from the +/- symbols (horizontal).