From e68c67554b12b19faab3d35ca38b222deda07e37 Mon Sep 17 00:00:00 2001
From: Andrew Borodin <aborodin@vmail.ru>
Date: Tue, 26 May 2009 18:56:42 +0400
Subject: [PATCH] TTY: created tty_fill_region() function.

src/tty/tty.h:
src/tty/tty-slang.c:
src/tty/tty-ncurses.c: new tty_fill_region() function.

src/dialog.c (widget_erase, dlg_erase): tty_fill_region() function
is applied to erase area of widget and dialog.
---
 src/dialog.c          | 27 ++++++++-------------------
 src/tty/tty-ncurses.c | 13 +++++++++++++
 src/tty/tty-slang.c   |  6 ++++++
 src/tty/tty.h         |  1 +
 4 files changed, 28 insertions(+), 19 deletions(-)

diff --git a/src/dialog.c b/src/dialog.c
index 6ed443556..7abe520a3 100644
--- a/src/dialog.c
+++ b/src/dialog.c
@@ -34,7 +34,7 @@
 #include "../src/tty/tty.h"
 #include "../src/tty/color.h"
 #include "../src/tty/mouse.h"
-#include "../src/tty/key.h"	/* mi_getch() */
+#include "../src/tty/key.h"
 
 #include "help.h"	/* interactive_display() */
 #include "dialog.h"
@@ -90,28 +90,17 @@ draw_double_box (Dlg_head *h, int y, int x, int ys, int xs)
 #endif /* HAVE_SLANG */
 }
 
-void widget_erase (Widget *w)
+void
+widget_erase (Widget *w)
 {
-    int x, y;
-
-    for (y = 0; y < w->lines; y++){
-	widget_move (w, y, 0);
-	for (x = 0; x < w->cols; x++)
-	    addch (' ');
-    }
+    tty_fill_region (w->y, w->x, w->lines, w->cols, ' ');
 }
 
-void dlg_erase (Dlg_head *h)
+void
+dlg_erase (Dlg_head *h)
 {
-    int x, y;
-    if (h == NULL)
-	return;
-    for (y = 0; y < h->lines; y++){
-	tty_gotoyx (y + h->y, h->x);	/* FIXME: should test if ERR */
-	for (x = 0; x < h->cols; x++){
-	    addch (' ');
-	}
-    }
+    if (h != NULL)
+	tty_fill_region (h->y, h->x, h->lines, h->cols, ' ');
 }
 
 void
diff --git a/src/tty/tty-ncurses.c b/src/tty/tty-ncurses.c
index 39db34a31..b3940205c 100644
--- a/src/tty/tty-ncurses.c
+++ b/src/tty/tty-ncurses.c
@@ -136,6 +136,19 @@ tty_draw_box (int y, int x, int rows, int cols)
 #undef waddc
 }
 
+void
+tty_fill_region (int y, int x, int rows, int cols, unsigned char ch)
+{
+    int i;
+
+    for (i = 0; i < rows; i++) {
+	move (y + i, x);
+	hline (ch, cols);
+    }
+
+    move (y, x);
+}
+
 void
 tty_print_char (int c)
 {
diff --git a/src/tty/tty-slang.c b/src/tty/tty-slang.c
index 8f761309e..02cee439b 100644
--- a/src/tty/tty-slang.c
+++ b/src/tty/tty-slang.c
@@ -426,6 +426,12 @@ tty_draw_box (int y, int x, int rows, int cols)
     SLsmg_draw_box (y, x, rows, cols);
 }
 
+void
+tty_fill_region (int y, int x, int rows, int cols, unsigned char ch)
+{
+    SLsmg_fill_region (y, x, rows, cols, ch);
+}
+
 void
 tty_print_char (int c)
 {
diff --git a/src/tty/tty.h b/src/tty/tty.h
index 87031cb7e..460b68d6d 100644
--- a/src/tty/tty.h
+++ b/src/tty/tty.h
@@ -52,6 +52,7 @@ extern void tty_print_one_hline(void);
 extern void tty_print_vline(int top, int left, int length);
 extern void tty_print_hline(int top, int left, int length);
 extern void tty_draw_box (int y, int x, int rows, int cols);
+extern void tty_fill_region (int y, int x, int rows, int cols, unsigned char ch);
 
 extern char *tty_tgetstr (const char *name);