From d99efb5f6f37d9ffbb6794df8964d2537f75eeda Mon Sep 17 00:00:00 2001 From: wil Date: Sat, 7 Jan 2017 18:09:42 +0100 Subject: [fix] corner cases win nb_children < nb_master|nb_col --- sway/layout.c | 61 +++++++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 40 insertions(+), 21 deletions(-) (limited to 'sway') diff --git a/sway/layout.c b/sway/layout.c index 5f8da9e6..9661f505 100644 --- a/sway/layout.c +++ b/sway/layout.c @@ -1504,12 +1504,33 @@ bool is_auto_layout(enum swayc_layouts layout) { return (layout >= L_AUTO_FIRST) && (layout <= L_AUTO_LAST); } +/** + * Return the number of master elements in a container + */ +static inline size_t auto_master_count(swayc_t *container) { + return MIN(container->nb_master, container->children->length); +} + /** * Return the number of children in the slave groups. This corresponds to the children * that are not members of the master group. */ static inline size_t auto_slave_count(swayc_t *container) { - return container->children->length - container->nb_master; + return container->children->length - auto_master_count(container); +} + +/** + * Return the number of slave groups in the container. + */ +size_t auto_slave_group_count(swayc_t *container) { + return MIN(container->nb_slave_groups, auto_slave_count(container)); +} + +/** + * Return the combined number of master and slave groups in the container. + */ +size_t auto_group_count(swayc_t *container) { + return auto_slave_group_count(container) + (container->nb_master ? 1 : 0); } /** @@ -1521,10 +1542,12 @@ int auto_group_start_index(swayc_t *container, int index) { || (size_t) index < container->nb_master) { return 0; } else { - size_t grp_sz = auto_slave_count(container) / container->nb_slave_groups; - size_t remainder = auto_slave_count(container) % container->nb_slave_groups; + size_t nb_slaves = auto_slave_count(container); + size_t nb_slave_grp = auto_slave_group_count(container); + size_t grp_sz = nb_slaves / nb_slave_grp; + size_t remainder = nb_slaves % nb_slave_grp; + int idx2 = (nb_slave_grp - remainder) * grp_sz + container->nb_master; int start_idx; - int idx2 = (container->nb_slave_groups - remainder) * grp_sz + container->nb_master; if (index < idx2) { start_idx = ((index - container->nb_master) / grp_sz) * grp_sz + container->nb_master; } else { @@ -1545,11 +1568,13 @@ int auto_group_end_index(swayc_t *container, int index) { } else { int nxt_idx; if ((size_t)index < container->nb_master) { - nxt_idx = container->nb_master; + nxt_idx = auto_master_count(container); } else { - size_t grp_sz = auto_slave_count(container) / container->nb_slave_groups; - size_t remainder = auto_slave_count(container) % container->nb_slave_groups; - int idx2 = (container->nb_slave_groups - remainder) * grp_sz + container->nb_master; + size_t nb_slaves = auto_slave_count(container); + size_t nb_slave_grp = auto_slave_group_count(container); + size_t grp_sz = nb_slaves / nb_slave_grp; + size_t remainder = nb_slaves % nb_slave_grp; + int idx2 = (nb_slave_grp - remainder) * grp_sz + container->nb_master; if (index < idx2) { nxt_idx = ((index - container->nb_master) / grp_sz + 1) * grp_sz + container->nb_master; } else { @@ -1560,13 +1585,6 @@ int auto_group_end_index(swayc_t *container, int index) { } } -/** - * Return the combined number of master and slave groups in the container. - */ -size_t auto_group_count(swayc_t *container) { - return MIN(container->nb_slave_groups, auto_slave_count(container)) + (container->nb_master ? 1 : 0); -} - /** * return the index of the Group containing th child of . * The index is the order of the group along the container's major axis (starting at 0). @@ -1576,22 +1594,23 @@ size_t auto_group_index(swayc_t *container, int index) { return 0; } bool master_first = (container->layout == L_AUTO_LEFT || container->layout == L_AUTO_TOP); - int nb_slaves = auto_slave_count(container); + size_t nb_slaves = auto_slave_count(container); if ((size_t) index < container->nb_master) { if (master_first || nb_slaves <= 0) { return 0; } else { - return MIN(container->nb_slave_groups, nb_slaves); + return auto_slave_group_count(container); } } else { - size_t grp_sz = auto_slave_count(container) / container->nb_slave_groups; - size_t remainder = auto_slave_count(container) % container->nb_slave_groups; + size_t nb_slave_grp = auto_slave_group_count(container); + size_t grp_sz = nb_slaves / nb_slave_grp; + size_t remainder = nb_slaves % nb_slave_grp; + int idx2 = (nb_slave_grp - remainder) * grp_sz + container->nb_master; size_t grp_idx; - int idx2 = (container->nb_slave_groups - remainder) * grp_sz + container->nb_master; if (index < idx2) { grp_idx = (index - container->nb_master) / grp_sz; } else { - grp_idx = (container->nb_slave_groups - remainder) + (index - idx2) / (grp_sz + 1) ; + grp_idx = (nb_slave_grp - remainder) + (index - idx2) / (grp_sz + 1) ; } return grp_idx + (master_first ? 1 : 0); } -- cgit v1.2.3-54-g00ecf