attr.c

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#include "config.h"
#include <stddef.h>
#include <stdint.h>
#include "mutt/lib.h"
#include "attr.h"
#include "curses2.h"
#include "debug.h"
 
void attr_color_clear(struct AttrColor *ac)
{
  if (!ac)
    return;
 
  if (ac->curses_color)
    color_debug(LL_DEBUG5, "clear %p\n", ac);
  curses_color_free(&ac->curses_color);
  ac->attrs = 0;
}
 
void attr_color_free(struct AttrColor **ptr)
{
  if (!ptr || !*ptr)
    return;
 
  struct AttrColor *ac = *ptr;
  if (ac->ref_count > 1)
  {
    ac->ref_count--;
    *ptr = NULL;
    return;
  }
 
  attr_color_clear(ac);
  FREE(ptr);
}
 
struct AttrColor *attr_color_new(void)
{
  struct AttrColor *ac = mutt_mem_calloc(1, sizeof(*ac));
 
  ac->ref_count = 1;
 
  return ac;
}
 
void attr_color_list_clear(struct AttrColorList *acl)
{
  if (!acl)
    return;
 
  struct AttrColor *ac = NULL;
  struct AttrColor *tmp = NULL;
  TAILQ_FOREACH_SAFE(ac, acl, entries, tmp)
  {
    TAILQ_REMOVE(acl, ac, entries);
    attr_color_free(&ac);
  }
}
 
struct AttrColor *attr_color_list_find(struct AttrColorList *acl, uint32_t fg,
                                       uint32_t bg, int attrs)
{
  if (!acl)
    return NULL;
 
  struct AttrColor *ac = NULL;
  TAILQ_FOREACH(ac, acl, entries)
  {
    if (ac->attrs != attrs)
      continue;
 
    struct CursesColor *cc = ac->curses_color;
    if (!cc)
      continue;
 
    if ((cc->fg == fg) && (cc->bg == bg))
      return ac;
  }
  return NULL;
}
 
struct AttrColor attr_color_copy(const struct AttrColor *ac)
{
  struct AttrColor copy = { 0 };
  if (ac)
    copy = *ac;
 
  return copy;
}
 
bool attr_color_is_set(struct AttrColor *ac)
{
  if (!ac)
    return false;
 
  return ((ac->attrs != 0) || ac->curses_color);
}
 
bool attr_color_match(struct AttrColor *ac1, struct AttrColor *ac2)
{
  if ((!ac1) ^ (!ac2)) // One is set, but not the other
    return false;
 
  if (!ac1) // Two empty colours match
    return true;
 
  return ((ac1->curses_color == ac2->curses_color) && (ac1->attrs == ac2->attrs));
}