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defer channel tree scrolling until realized

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deepend
2026-09-14 04:11:23 -06:00
parent d7aebb784d
commit e94ffd9d79
1 changed files with 28 additions and 19 deletions
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47
src/fe-gtk/chanview-tree.c
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@@ -301,26 +301,35 @@ cv_tree_focus (chan *ch)
path = gtk_tree_model_get_path (model, &ch->iter); path = gtk_tree_model_get_path (model, &ch->iter);
if (path) if (path)
{ {
/* This full section does what if (!gtk_widget_get_realized (GTK_WIDGET (tree)))
* gtk_tree_view_scroll_to_cell (tree, path, NULL, TRUE, 0.5, 0.5);
* does, except it only scrolls the window if the provided cell is
* not visible. Basic algorithm taken from gtktreeview.c */
/* obtain information to see if the cell is visible */
gtk_tree_view_get_background_area (tree, path, NULL, &cell_rect);
gtk_tree_view_get_visible_rect (tree, &vis_rect);
/* The cordinates aren't offset correctly */
gtk_tree_view_convert_widget_to_bin_window_coords ( tree, cell_rect.x, cell_rect.y, NULL, &cell_rect.y );
/* only need to scroll if out of bounds */
if (cell_rect.y < vis_rect.y ||
cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
{ {
dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * 0.5); /* Layout changes can restore focus before the new tree is realized.
if (dest_y < 0) * Let GTK track the row and scroll once its geometry is available. */
dest_y = 0; gtk_tree_view_scroll_to_cell (tree, path, NULL, TRUE, 0.5, 0.5);
gtk_tree_view_scroll_to_point (tree, -1, dest_y); }
else
{
/* This full section does what
* gtk_tree_view_scroll_to_cell (tree, path, NULL, TRUE, 0.5, 0.5);
* does, except it only scrolls the window if the provided cell is
* not visible. Basic algorithm taken from gtktreeview.c */
/* obtain information to see if the cell is visible */
gtk_tree_view_get_background_area (tree, path, NULL, &cell_rect);
gtk_tree_view_get_visible_rect (tree, &vis_rect);
/* The cordinates aren't offset correctly */
gtk_tree_view_convert_widget_to_bin_window_coords ( tree, cell_rect.x, cell_rect.y, NULL, &cell_rect.y );
/* only need to scroll if out of bounds */
if (cell_rect.y < vis_rect.y ||
cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
{
dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * 0.5);
if (dest_y < 0)
dest_y = 0;
gtk_tree_view_scroll_to_point (tree, -1, dest_y);
}
} }
/* theft done, now make it focused like */ /* theft done, now make it focused like */
gtk_tree_view_set_cursor (tree, path, NULL, FALSE); gtk_tree_view_set_cursor (tree, path, NULL, FALSE);