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listitemmanager: Add gtk_list_tile_get_next_skip()

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... and gtk_list_tile_get_previous_skip() and use them.

Allows skipping over REMOVED and FILLER tiles which makes the code a lot
more readable.
This commit is contained in:
Benjamin Otte 2023-04-08 03:59:17 +02:00
parent 88d5c9a5e1
commit ccbe762103
1 changed files with 32 additions and 25 deletions
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57
gtk/gtklistitemmanager.c
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@ -542,6 +542,28 @@ gtk_list_tile_get_augment (GtkListItemManager *self,
return gtk_rb_tree_get_augment (self->items, tile);
}
static GtkListTile *
gtk_list_tile_get_next_skip (GtkListTile *tile)
{
for (tile = gtk_rb_tree_node_get_next (tile);
tile && (tile->type == GTK_LIST_TILE_FILLER || tile->type == GTK_LIST_TILE_REMOVED);
tile = gtk_rb_tree_node_get_next (tile))
{ }
return tile;
}
static GtkListTile *
gtk_list_tile_get_previous_skip (GtkListTile *tile)
{
for (tile = gtk_rb_tree_node_get_previous (tile);
tile && (tile->type == GTK_LIST_TILE_FILLER || tile->type == GTK_LIST_TILE_REMOVED);
tile = gtk_rb_tree_node_get_previous (tile))
{ }
return tile;
}
/*
* gtk_list_tile_set_area:
* @self: the list item manager
@ -734,16 +756,9 @@ gtk_list_item_manager_remove_items (GtkListItemManager *self,
tile = gtk_list_item_manager_get_nth (self, position, &offset);
if (offset)
tile = gtk_list_item_manager_ensure_split (self, tile, offset);
for (header = gtk_rb_tree_node_get_previous (tile);
header->type != GTK_LIST_TILE_HEADER && header->type != GTK_LIST_TILE_UNMATCHED_HEADER;
header = gtk_rb_tree_node_get_previous (header))
{
if (header->type == GTK_LIST_TILE_ITEM)
{
header = NULL;
break;
}
}
header = gtk_list_tile_get_previous_skip (tile);
if (header->type != GTK_LIST_TILE_HEADER && header->type != GTK_LIST_TILE_UNMATCHED_HEADER)
header = NULL;
while (n_items > 0)
{
@ -765,10 +780,6 @@ gtk_list_item_manager_remove_items (GtkListItemManager *self,
}
break;
case GTK_LIST_TILE_FILLER:
case GTK_LIST_TILE_REMOVED:
break;
case GTK_LIST_TILE_ITEM:
if (tile->n_items > n_items)
{
@ -783,26 +794,22 @@ gtk_list_item_manager_remove_items (GtkListItemManager *self,
gtk_list_tile_set_type (tile, GTK_LIST_TILE_REMOVED);
break;
case GTK_LIST_TILE_FILLER:
case GTK_LIST_TILE_REMOVED:
default:
g_assert_not_reached ();
break;
}
tile = gtk_rb_tree_node_get_next (tile);
tile = gtk_list_tile_get_next_skip (tile);
}
if (header)
{
for (;
tile->type != GTK_LIST_TILE_ITEM;
tile = gtk_rb_tree_node_get_next (tile))
if (tile->type == GTK_LIST_TILE_FOOTER || tile->type == GTK_LIST_TILE_UNMATCHED_FOOTER)
{
if (tile->type == GTK_LIST_TILE_FOOTER || tile->type == GTK_LIST_TILE_UNMATCHED_FOOTER)
{
gtk_list_tile_set_type (header, GTK_LIST_TILE_REMOVED);
gtk_list_tile_set_type (tile, GTK_LIST_TILE_REMOVED);
break;
}
gtk_list_tile_set_type (header, GTK_LIST_TILE_REMOVED);
gtk_list_tile_set_type (tile, GTK_LIST_TILE_REMOVED);
}
}
@ -859,7 +866,7 @@ gtk_list_item_manager_add_items (GtkListItemManager *self,
if (has_sections)
{
GtkListTile *section = gtk_rb_tree_node_get_previous (tile);
GtkListTile *section = gtk_list_tile_get_previous_skip (tile);
if (section->type == GTK_LIST_TILE_HEADER)
{