+/* Initialize Winconf of "id" from appropriate config file.*/
+static void init_winconf_from_file(char id, struct WinConf * winconf);
+
+/* Wrapper around init_win() called with values from Winconf of "id". */
+static void init_win_from_winconf(char id);
+
+/* Save title, draw function, size of window identified by "id" to conffile. */
+static void save_win_config(char id);
+
+/* Free data pointed to inside individual WinConf struct of "id". */
+static void free_winconf_data(char id);
+
+/* Write geometry of a window to its WinConf, as positive or negative values
+ * (dependent on state ofWinConf->height_type / WinConf->width_type).
+ */
+static void set_winconf_geometry(char id);
+
+/* Get WinConf by "id"; get id of WinConf mothering "win". */
+static struct WinConf * get_winconf_by_id(char id);
+
+/* Get (Win->draw) function identified by "c"; NULL if c not mapped to one. */
+static void * get_drawfunc_by_char(char c);
+
+/* Iterate over chars of world.winconf_ids array. Re-start after null byte. */
+static char get_next_winconf_id();
+
+
+
+static char * string_prefixed_id(char * prefix, char id)
+{
+ uint8_t size = strlen(prefix) + 2;
+ char * path = try_malloc(size, "string_prefixed_id()");
+ sprintf(path, "%s_", prefix);
+ path[size - 2] = id;
+ return path;
+}
+
+
+
+static void init_winconf_from_file(char id, struct WinConf * winconf)
+{
+ /* Assign WinConf id to filename path, error message context, winconf->id.*/
+ char * tmp = "init_winconf_from_file() on window id '_'";
+ char * context = try_malloc(strlen(tmp) + 1, "init_winconf_from_file()");
+ memcpy(context, tmp, strlen(tmp) + 1);
+ context[strlen(tmp) - 2] = id;
+ char * path = string_prefixed_id("config/windows/Win_", id);
+ winconf->id = id;
+
+ /* Prepare reading in file line by line into "line" array. */
+ FILE * file = try_fopen(path, "r", context);
+ free(path);
+ uint16_t linemax = get_linemax(file, context);
+ char line[linemax + 1];
+
+ /* Read/determine winconf->title, ->draw, ->height(_type),->width(_type). */
+ try_fgets(line, linemax + 1, file, context);
+ winconf->title = try_malloc(strlen(line), context);
+ memcpy(winconf->title, line, strlen(line) - 1); /* Eliminate newline char */
+ winconf->title[strlen(line) - 1] = '\0'; /* char at end of string. */
+ try_fgets(line, linemax + 1, file, context);
+ winconf->draw = line[0];
+ try_fgets(line, linemax + 1, file, context);
+ winconf->height = atoi(line);
+ winconf->height_type = (0 >= winconf->height);
+ try_fgets(line, linemax + 1, file, context);
+ winconf->width = atoi(line);
+ winconf->width_type = (0 >= winconf->width);
+
+ /* Read in window-specific keybindings (winconf->kb). */
+ char command[linemax + 1];
+ char * cmdptr;
+ struct KeyBinding ** loc_last_ptr = &winconf->kb.kbs;
+ * loc_last_ptr = 0;
+ while (fgets(command, linemax + 1, file))
+ {
+ if ('\n' == command[0] || 0 == command[0])
+ {
+ break;
+ }
+ * loc_last_ptr = try_malloc(sizeof(struct KeyBinding), context);
+ struct KeyBinding * kb_p = * loc_last_ptr;
+ kb_p->next = 0;
+ kb_p->key = atoi(command);
+ cmdptr = strchr(command, ' ') + 1;
+ kb_p->name = try_malloc(strlen(cmdptr), context);
+ memcpy(kb_p->name, cmdptr, strlen(cmdptr) - 1);
+ kb_p->name[strlen(cmdptr) - 1] = '\0';
+ loc_last_ptr = & kb_p->next;
+ }
+
+ /* Init remaining values to zero and cleaning up. */
+ winconf->view = 0;
+ winconf->kb.edit = 0;
+ winconf->kb.select = 0;
+ try_fclose(file, context);
+ free(context);
+}
+
+
+
+static void init_win_from_winconf(char id)
+{
+ char * err = "get_drawfunc_by_char() returns NULL to init_win_from_file().";
+ struct WinConf * winconf = get_winconf_by_id(id);
+ void * f = get_drawfunc_by_char(winconf->draw);
+ exit_err(NULL == f, err);
+ init_win(&winconf->win, winconf->title, winconf->height, winconf->width, f);
+}
+
+
+
+static void save_win_config(char id)
+{
+ char * f_name = "save_win_config()";
+
+ char * path_tmp = string_prefixed_id("config/windows/Win_tmp_", id);
+ FILE * file = try_fopen(path_tmp, "w", f_name);
+
+ struct WinConf * wc = get_winconf_by_id(id);
+ uint8_t size = strlen(wc->title) + 2;
+ if (size < 7)
+ {
+ size = 7;
+ }
+ char line[size];
+ sprintf(line, "%s\n", wc->title);
+ try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+ sprintf(line, "%c\n", wc->draw);
+ try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+ sprintf(line, "%d\n", wc->height);
+ try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+ sprintf(line, "%d\n", wc->width);
+ try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+
+ uint16_t linemax = 0;
+ struct KeyBinding * kb_p = wc->kb.kbs;
+ while (0 != kb_p)
+ {
+ if (strlen(kb_p->name) > linemax)
+ {
+ linemax = strlen(kb_p->name);
+ }
+ kb_p = kb_p->next;
+ }
+ linemax = linemax + 6; /* + 6 = + 3 digits + whitespace + \n + \0 */
+
+ char kb_line[linemax];
+ kb_p = wc->kb.kbs;
+ while (0 != kb_p)
+ {
+ snprintf(kb_line, linemax, "%d %s\n", kb_p->key, kb_p->name);
+ try_fwrite(kb_line, sizeof(char), strlen(kb_line), file, f_name);
+ kb_p = kb_p->next;
+ }
+
+ char * path = string_prefixed_id("config/windows/Win_", id);
+ try_fclose_unlink_rename(file, path_tmp, path, f_name);
+ free(path);
+ free(path_tmp);
+}
+
+
+
+static void free_winconf_data(char id)
+{
+ struct WinConf * wc = get_winconf_by_id(id);
+ free(wc->title);
+ free_keybindings(wc->kb.kbs);
+ free_win(wc->win);
+}
+
+
+
+static void set_winconf_geometry(char id)
+{
+ struct WinConf * wcp = get_winconf_by_id(id);
+ if (0 == wcp->height_type)
+ {
+ wcp->height = wcp->win->framesize.y;
+ }
+ else if (1 == wcp->height_type)
+ {
+ wcp->height = wcp->win->framesize.y - world.wmeta->padsize.y + 1;
+ }
+ if (0 == wcp->width_type)
+ {
+ wcp->width = wcp->win->framesize.x;
+ }
+ else if (1 == wcp->width_type)
+ {
+ wcp->width = wcp->win->framesize.x - world.wmeta->padsize.x;
+ }
+}
+
+
+
+static struct WinConf * get_winconf_by_id(char id)
+{
+ uint8_t i = 0;
+ while (1)
+ {
+ if (id == world.winconfs[i].id)
+ {
+ return &world.winconfs[i];
+ }
+ i++;
+ }
+}
+
+
+
+static void * get_drawfunc_by_char(char c)
+{
+ if ('c' == c)
+ {
+ return draw_win_inventory;
+ }
+ else if ('i' == c)
+ {
+ return draw_win_info;
+ }
+ else if ('l' == c)
+ {
+ return draw_win_log;
+ }
+ else if ('k' == c)
+ {
+ return draw_win_available_keybindings;
+ }
+ else if ('m' == c)
+ {
+ return draw_win_map;
+ }
+ else if ('0' == c)
+ {
+ return draw_win_keybindings_global;
+ }
+ else if ('1' == c)
+ {
+ return draw_win_keybindings_winconf_geometry;
+ }
+ else if ('2' == c)
+ {
+ return draw_win_keybindings_winconf_keybindings;
+ }
+ return NULL;
+}
+
+
+
+static char get_next_winconf_id()