diff options
| -rw-r--r-- | src/interface.c | 103 |
1 files changed, 75 insertions, 28 deletions
diff --git a/src/interface.c b/src/interface.c index 9e1ec0e..a40266f 100644 --- a/src/interface.c +++ b/src/interface.c @@ -73,6 +73,44 @@ print_volume(struct interface *ifc, struct vol_ctl *ctl) ctl->mute ? 'M':' ', ifc->volume_bar_len, vol, ifc->volume_bar); } +static gchar * +ellipsize(const gchar *string, guint truncate_length) +{ + const gchar ellipsis[] = "…"; + glong ellipsis_length; + glong length; + glong num_left_chars; + glong num_right_chars; + g_autofree gchar *left_substring = NULL; + g_autofree gchar *right_substring = NULL; + + g_return_val_if_fail(string != NULL, NULL); + g_return_val_if_fail(truncate_length > 0, NULL); + + ellipsis_length = g_utf8_strlen(ellipsis, -1); + + /* Our ellipsis string + one character on each side. */ + if (truncate_length < ellipsis_length + 2) { + return g_strdup(string); + } + + length = g_utf8_strlen(string, -1); + + if (length <= truncate_length) { + return g_strdup(string); + } + + num_left_chars = (truncate_length - ellipsis_length) / 2; + num_right_chars = truncate_length - num_left_chars - ellipsis_length; + + g_assert (num_left_chars > 0); + g_assert (num_right_chars > 0); + + left_substring = g_utf8_substring(string, 0, num_left_chars); + right_substring = g_utf8_substring(string, length - num_right_chars, length); + + return g_strconcat(left_substring, ellipsis, right_substring, NULL); +} static void print_vol_ctl(gpointer data, gpointer user_data) @@ -81,12 +119,17 @@ print_vol_ctl(gpointer data, gpointer user_data) struct interface *ifc = user_data; gint x, y; guint i; - size_t name_len; + size_t max_x, max_y, max_name_len, name_len; + char *name; + (void) max_y; getyx(ifc->menu_win, y, x); if (ctl == ifc->current_ctl) wattron(ifc->menu_win, A_REVERSE); + getmaxyx(ifc->menu_win, max_y, max_x); + max_name_len = (ifc->max_name_len > max_x / 5 * 2 ) ? max_x / 5 * 2 : ifc->max_name_len; + if (!ctl->hide_index) { wprintw(ifc->menu_win, "%2u ", ctl->index); } else { @@ -95,39 +138,43 @@ print_vol_ctl(gpointer data, gpointer user_data) waddch(ifc->menu_win, ' '); } } - - for (i = 0; i < ctl->indent; ++i) { - waddch(ifc->menu_win, ' '); - } - name_len = g_utf8_strlen(ctl->name, -1); + name = ellipsize(ctl->name, max_name_len - ctl->indent); + if (name) { + for (i = 0; i < ctl->indent; ++i) { + waddch(ifc->menu_win, ' '); + } + name_len = g_utf8_strlen(name, -1); #if 1 - // Note: This is supoosed to be non portable - // Quote from https://stackoverflow.com/a/30835920/4223467 - // ncurses differs from X/Open curses by allowing multibyte characters - // to be added via the waddstr (and waddch) interfaces. Actually this would - // be the "ncursesw" library (the "ncurses" library does 8-bit encodings). - waddstr(ifc->menu_win, ctl->name); + // Note: This is supoosed to be non portable + // Quote from https://stackoverflow.com/a/30835920/4223467 + // ncurses differs from X/Open curses by allowing multibyte characters + // to be added via the waddstr (and waddch) interfaces. Actually this would + // be the "ncursesw" library (the "ncurses" library does 8-bit encodings). + waddstr(ifc->menu_win, name); #else - { - wchar_t *wname = g_new(wchar_t, name_len + 1); - // requires #include <stdlib.h> - gint count = mbstowcs(wname, name, name_len + 1); - // Require _XOPEN_SOURCE 600 (according to `man 3x ncurses` 700 is recommended). - // configure.ac: - // AC_DEFINE([_XOPEN_SOURCE], [600], [Enable X/Open 6, incorporating POSIX 2004 definitions]) - waddnwstr(ifc->menu_win, wname, count); - g_free(wname); - } + { + wchar_t *wname = g_new(wchar_t, name_len + 1); + // requires #include <stdlib.h> + gint count = mbstowcs(wname, name, name_len + 1); + // Require _XOPEN_SOURCE 600 (according to `man 3x ncurses` 700 is recommended). + // configure.ac: + // AC_DEFINE([_XOPEN_SOURCE], [600], [Enable X/Open 6, incorporating POSIX 2004 definitions]) + waddnwstr(ifc->menu_win, wname, count); + g_free(wname); + } #endif - // Add padding - for (i = 0; i < ifc->max_name_len - name_len - ctl->indent; ++i) { - waddch(ifc->menu_win, ' '); - } + // Add padding + for (i = 0; i < max_name_len - name_len - ctl->indent; ++i) { + waddch(ifc->menu_win, ' '); + } + + //wprintw(ifc->menu_win, "%-*s", + // max_name_len - ctl->indent, name); - //wprintw(ifc->menu_win, "%-*s", - // max_name_len - ctl->indent, name); + g_free(name); + } if (ctl == ifc->current_ctl) wattroff(ifc->menu_win, A_REVERSE); |