From c9b516afd587050f3424149cfe226f0945378a34 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@hornquist.se>
Date: Tue, 23 Apr 2019 22:51:47 +0200
Subject: Get terminal size of terminal output.

---
 module/output/terminal.scm | 7 ++++++-
 module/terminal/util.scm   | 9 +++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

(limited to 'module')

diff --git a/module/output/terminal.scm b/module/output/terminal.scm
index f9796d68..ebe1e483 100644
--- a/module/output/terminal.scm
+++ b/module/output/terminal.scm
@@ -48,6 +48,11 @@
 (define (main-loop time event-stream)
   (define cur-event 0)
 
+  (define height 0)
+  (define width 0)
+  (let* ((h w (get-terminal-size)))
+    (set! height h
+          width w))
 
   (while #t
     (let ((events
@@ -73,7 +78,7 @@
                   (time->string (attr ev 'DTEND) "~1 ~3")
                   (flow-text (or (attr ev 'DESCRIPTION) "")
                              #:width 70
-                             #:height 10))))
+                             #:height (- height 8 2 (length events) 5)))))
 
       (let ((char (read-char)))
         ;; (format (current-error-port)
diff --git a/module/terminal/util.scm b/module/terminal/util.scm
index a7435ad8..f4d60fda 100644
--- a/module/terminal/util.scm
+++ b/module/terminal/util.scm
@@ -1,6 +1,8 @@
 (define-module (terminal util)
   #:use-module (srfi srfi-19)
   #:use-module (srfi srfi-60)
+  #:use-module (util)
+  #:use-module (ice-9 popen)
   #:export (line ctrl color-escape))
 
 (define* (line #:optional (width 64))
@@ -35,3 +37,10 @@
                    (string->number gs 16)
                    (string->number bs 16))))))
 
+
+(define-public (get-terminal-size)
+ (let* (((rpipe . wpipe) (pipe)))
+   (system (format #f "stty size > /proc/~s/fd/~s"
+                   (getpid) (port->fdes wpipe)))
+   (values (read rpipe)
+           (read rpipe))))
-- 
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