From c4a18ec8a7c6c65c196ce6735e2fa7e4febf3a06 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Fri, 15 Jan 2016 05:36:58 +0100
Subject: [PATCH] degesch: fix and simplify screen handling

Now with less madness.
---
 degesch.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/degesch.c b/degesch.c
index 2030647..854ad84 100644
--- a/degesch.c
+++ b/degesch.c
@@ -59,9 +59,7 @@ enum
 #include <wchar.h>
 
 #include <termios.h>
-#ifdef TIOCGWINSZ
 #include <sys/ioctl.h>
-#endif  // ! TIOCGWINSZ
 
 #include <curses.h>
 #include <term.h>
@@ -3418,6 +3416,7 @@ buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
 		else if (cursor_address)
 			tputs (tparm (cursor_address, g_terminal.lines - 1,
 				0, 0, 0, 0, 0, 0, 0, 0), 1, printer);
+		fflush (stdout);
 	}
 	else
 	{
@@ -11046,24 +11045,18 @@ resume_terminal (struct app_context *ctx)
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
-static bool
+static void
 redraw_screen (struct app_context *ctx)
 {
-	if (!soft_assert (clear_screen != NULL))
-		return false;
-
 	input_hide (&ctx->input);
 
 	// If by some circumstance we had the wrong idea
 	input_on_terminal_resized (&ctx->input);
+	update_screen_size ();
 
-	terminal_printer_fn printer = get_attribute_printer (stdout);
-	tputs (clear_screen, 1, printer);
-	fflush (stdout);
 	buffer_print_backlog (ctx, ctx->current_buffer);
 
 	input_show (&ctx->input);
-	return true;
 }
 
 static bool
@@ -11394,8 +11387,7 @@ on_readline_redraw_screen (int count, int key)
 	(void) key;
 
 	struct app_context *ctx = g_ctx;
-	if (!redraw_screen (ctx))
-		input_ding (&ctx->input);
+	redraw_screen (ctx);
 	return 0;
 }
 
@@ -11606,8 +11598,7 @@ on_editline_redraw_screen (EditLine *editline, int key)
 	(void) editline;
 	(void) key;
 
-	if (!redraw_screen (g_ctx))
-		return CC_ERROR;
+	redraw_screen (g_ctx);
 	return CC_NORM;
 }
 
@@ -12054,10 +12045,7 @@ on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
 
 	if (g_winch_received)
 	{
-		if (ctx->input.active)
-			input_on_terminal_resized (&ctx->input);
-
-		update_screen_size ();
+		redraw_screen (ctx);
 		g_winch_received = false;
 	}
 }