1 files changed, 36 insertions, 0 deletions

diff --git a/sway/config.c b/sway/config.c
index 67b442ad..aa4675ce 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -271,6 +271,42 @@ int output_name_cmp(const void *item, const void *data) {
         return strcmp(output->name, name);
 }
 
+void merge_output_config(struct output_config *dst, struct output_config *src) {
+        if (src->name) {
+                if (dst->name) {
+                        free(dst->name);
+                }
+                dst->name = strdup(src->name);
+        }
+        if (src->enabled != -1) {
+                dst->enabled = src->enabled;
+        }
+        if (src->width != -1) {
+                dst->width = src->width;
+        }
+        if (src->height != -1) {
+                dst->height = src->height;
+        }
+        if (src->x != -1) {
+                dst->x = src->x;
+        }
+        if (src->y != -1) {
+                dst->y = src->y;
+        }
+        if (src->background) {
+                if (dst->background) {
+                        free(dst->background);
+                }
+                dst->background = strdup(src->background);
+        }
+        if (src->background_option) {
+                if (dst->background_option) {
+                        free(dst->background_option);
+                }
+                dst->background_option = strdup(src->background_option);
+        }
+}
+
 void apply_output_config(struct output_config *oc, swayc_t *output) {
         if (oc && oc->width > 0 && oc->height > 0) {
                 output->width = oc->width;