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authorBenjamin Franzke <benjaminfranzke@gmail.com>2020-02-15 11:17:56 +0100
committerBenjamin Franzke <benjaminfranzke@gmail.com>2020-02-15 13:54:59 +0100
commit3b675ad5459e52ad6f2cbc97f25338320478d138 (patch)
tree21f49b75268a45c1b2dcc3e22536c31d6f8337ed
parent198137015a05f1f930cb7e9658dcbdd638da231d (diff)
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Ellipsize long sink/source names
-rw-r--r--src/interface.c103
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);