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config/output: Use INT_MAX as x/y unset value

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We oftne use -1 to indicate unset values. In case of output (x, y), we
would consider the fields set if they are not both -1. This means that
(0, -1) and (-1, 0) are valid coordinates, but (-1, -1) is not.

We support negative output positioning, so we cannot use -1 to mean
unset. Zero is also not an option as that would disallow reverting a set
position back to (0, 0).

INT_MAX is an unreasonable output position, so use it to indicate unset
values, and only use the value when both are set.
This commit is contained in:
Kenny Levinsen 2025-04-30 13:34:31 +02:00 • committed by Simon Ser
parent 6cac61b6b9
commit 8ac1f72c9e
1 changed files with 8 additions and 8 deletions
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16
sway/config/output.c
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@ -67,7 +67,7 @@ struct output_config *new_output_config(const char *name) {
oc->refresh_rate = -1;
oc->custom_mode = -1;
oc->drm_mode.type = -1;
oc->x = oc->y = -1;
oc->x = oc->y = INT_MAX;
oc->scale = -1;
oc->scale_filter = SCALE_FILTER_DEFAULT;
oc->transform = -1;
@ -93,11 +93,11 @@ static void supersede_output_config(struct output_config *dst, struct output_con
if (src->height != -1) {
dst->height = -1;
}
if (src->x != -1) {
dst->x = -1;
if (src->x != INT_MAX) {
dst->x = INT_MAX;
}
if (src->y != -1) {
dst->y = -1;
if (src->y != INT_MAX) {
dst->y = INT_MAX;
}
if (src->scale != -1) {
dst->scale = -1;
@ -157,10 +157,10 @@ static void merge_output_config(struct output_config *dst, struct output_config
if (src->height != -1) {
dst->height = src->height;
}
if (src->x != -1) {
if (src->x != INT_MAX) {
dst->x = src->x;
}
if (src->y != -1) {
if (src->y != INT_MAX) {
dst->y = src->y;
}
if (src->scale != -1) {
@ -527,7 +527,7 @@ static bool finalize_output_config(struct output_config *oc, struct sway_output
}
// Find position for it
if (oc && (oc->x != -1 || oc->y != -1)) {
if (oc && oc->x != INT_MAX && oc->y != INT_MAX) {
sway_log(SWAY_DEBUG, "Set %s position to %d, %d", oc->name, oc->x, oc->y);
wlr_output_layout_add(root->output_layout, wlr_output, oc->x, oc->y);
} else {