End text with an ellipse if it goes above the limit

1 files changed, 18 insertions, 9 deletions

diff --git a/src/bardata.c b/src/bardata.c
index b9f221d..89c892f 100644
--- a/src/bardata.c
+++ b/src/bardata.c
@@ -67,7 +67,7 @@ void init_bardata(void) {
   set_default_background("#202020");
 }
 
-comp_t *find_comp(char *name) {
+comp_t *find_comp(const char *name) {
   for (size_t i = 0; i < comps_size; i++) {
     if (strcmp(comps[i].name, name) == 0) {
       return &comps[i];
@@ -83,7 +83,7 @@ comp_t *find_comp(char *name) {
   return comp;
 }
 
-void add_component(comp_side_t side, char *name) {
+void add_component(comp_side_t side, const char *name) {
   comp_t *comp = find_comp(name);
   if (side == SIDE_LEFT) {
     comps_left[left_size] = comp;
@@ -107,25 +107,34 @@ void set_component(char argv[MAX_ARGS][MAX_ARG_LEN], int argc) {
 
   for (int i = 2; i < argc; i++) {
     if (strcmp(argv[i], "-text") == 0) {
-      strcpy(comp->data, argv[i + 1]);
+      const char* data = argv[i + 1];
+      size_t len = strlen(data);
+      if (len > MAX_COMP_DATA - 1) {
+        len = MAX_COMP_DATA - 4;
+        char ellipse[] = "...";
+        memcpy(comp->data + len, ellipse, sizeof(ellipse));
+      } else {
+        comp->data[len] = '\0';
+      }
+      memcpy(comp->data, argv[i + 1], len);
       i++;
       continue;
     }
-    if (strcmp(argv[i], "-margin") == 0) {
+    if (strcmp(argv[i], "-margin-left") == 0) {
       int margin = atoi(argv[i + 1]);
       comp->margin_left = margin;
-      comp->margin_right = margin;
       i++;
       continue;
     }
-    if (strcmp(argv[i], "-margin-left") == 0) {
+    if (strcmp(argv[i], "-margin-right") == 0) {
       int margin = atoi(argv[i + 1]);
-      comp->margin_left = margin;
+      comp->margin_right = margin;
       i++;
       continue;
     }
-    if (strcmp(argv[i], "-margin-right") == 0) {
+    if (strcmp(argv[i], "-margin") == 0) {
       int margin = atoi(argv[i + 1]);
+      comp->margin_left = margin;
       comp->margin_right = margin;
       i++;
       continue;
@@ -173,7 +182,7 @@ void set_layout(char argv[MAX_ARGS][MAX_ARG_LEN], int argc) {
 }
 
 void set_config(char argv[MAX_ARGS][MAX_ARG_LEN], int argc) {
-  char *var = argv[1];
+  const char *var = argv[1];
   if (strcmp(var, "-height") == 0) {
     int new_bar_height = atoi(argv[2]);
     if (new_bar_height <= 0) {