From 551e67c8231e09399484ed0e48c92f8fddc5cdb7 Mon Sep 17 00:00:00 2001
From: Florian Stinglmayr <florian@n0la.org>
Date: Tue, 23 Jul 2019 18:47:27 +0200
Subject: [PATCH] reimplement window resizing

After get_wch() was dropped from the code resizing no longer worked,
so reimplement it. Use a signal handler, and call the proper ncurses
functions so that the internal variables are updated.
---
 ncdc/include/ncdc/mainwindow.h |  1 +
 ncdc/src/mainwindow.c          |  3 +--
 ncdc/src/ncdc.c                | 14 ++++++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/ncdc/include/ncdc/mainwindow.h b/ncdc/include/ncdc/mainwindow.h
index 41a0b5d..6071d9e 100644
--- a/ncdc/include/ncdc/mainwindow.h
+++ b/ncdc/include/ncdc/mainwindow.h
@@ -27,6 +27,7 @@ struct ncdc_mainwindow_;
 typedef struct ncdc_mainwindow_ *ncdc_mainwindow_t;
 
 ncdc_mainwindow_t ncdc_mainwindow_new(void);
+void ncdc_mainwindow_resize(ncdc_mainwindow_t n);
 
 /* holy shit stains I am lazy
  */
diff --git a/ncdc/src/mainwindow.c b/ncdc/src/mainwindow.c
index c67fc9c..7588ea7 100644
--- a/ncdc/src/mainwindow.c
+++ b/ncdc/src/mainwindow.c
@@ -66,7 +66,6 @@ struct ncdc_mainwindow_
     int focus;
 };
 
-static void ncdc_mainwindow_resize(ncdc_mainwindow_t n);
 static void ncdc_mainwindow_update_focus(ncdc_mainwindow_t n);
 static bool ncdc_mainwindow_callback(ncdc_input_t i, wchar_t const *s,
                                      size_t len, void *arg);
@@ -154,7 +153,7 @@ ncdc_mainwindow_callback(ncdc_input_t i, wchar_t const *s,
     return ret;
 }
 
-static void ncdc_mainwindow_resize(ncdc_mainwindow_t n)
+void ncdc_mainwindow_resize(ncdc_mainwindow_t n)
 {
     n->guilds_h = LINES - 2;
     n->guilds_w = (COLS / 4);
diff --git a/ncdc/src/ncdc.c b/ncdc/src/ncdc.c
index a0b1599..61d7eb6 100644
--- a/ncdc/src/ncdc.c
+++ b/ncdc/src/ncdc.c
@@ -86,6 +86,19 @@ static void cleanup(void)
     dc_unref(mainwin);
 }
 
+static void handle_winch(int sig)
+{
+    /* according to ncurses documentation you should call
+     * endwin(), followed by a refresh() to properly update
+     * curses
+     */
+    endwin();
+    refresh();
+    clear();
+
+    ncdc_mainwindow_resize(mainwin);
+}
+
 static void sighandler(int sig)
 {
     exit_main();
@@ -167,6 +180,7 @@ int main(int ac, char **av)
     int ret = 0;
 
     signal(SIGINT, sighandler);
+    signal(SIGWINCH, handle_winch);
 
     if (getenv("HOME") == NULL) {
         fprintf(stderr, "your environment doesn't contain HOME; pls fix\n");