ctrl + scroll -> adjust global font size by default, ctrl + shift + scroll -> adjust text view font size

src/os/gfx/os_gfx.c

@@ -45,6 +45,24 @@ os_string_list_from_modifiers(Arena *arena, OS_Modifiers modifiers)
   return result;
 }
 
+internal String8
+os_string_from_modifiers_key(Arena *arena, OS_Modifiers modifiers, OS_Key key)
+{
+  String8 result = {0};
+  if(key != OS_Key_Null)
+  {
+    Temp scratch = scratch_begin(&arena, 1);
+    String8List mods = os_string_list_from_modifiers(scratch.arena, modifiers);
+    String8 key_string = os_g_key_display_string_table[key];
+    str8_list_push(scratch.arena, &mods, key_string);
+    StringJoin join = {0};
+    join.sep = str8_lit(" + ");
+    result = str8_list_join(arena, &mods, &join);
+    scratch_end(scratch);
+  }
+  return result;
+}
+
 internal U32
 os_codepoint_from_modifiers_and_key(OS_Modifiers modifiers, OS_Key key)
 {

src/os/gfx/os_gfx.h

@@ -112,6 +112,7 @@ internal B32 frame(void);
 
 internal String8 os_string_from_event_kind(OS_EventKind kind);
 internal String8List os_string_list_from_modifiers(Arena *arena, OS_Modifiers flags);
+internal String8 os_string_from_modifiers_key(Arena *arena, OS_Modifiers modifiers, OS_Key key);
 internal U32 os_codepoint_from_modifiers_and_key(OS_Modifiers flags, OS_Key key);
 internal void os_eat_event(OS_EventList *events, OS_Event *event);
 internal B32  os_key_press(OS_EventList *events, OS_Handle window, OS_Modifiers modifiers, OS_Key key);