[wmii] [PATCH] add wimenu prompt support

This patch adds wimenu -p option that prepends an optional prompt box at
the left of the input area. Here is an example:

        seq 1 100 | wimenu -p 'What number am I thinking of?'

-Bart

---
 cmd/menu/dat.h  |    3 +++
 cmd/menu/main.c |    7 ++++++-
 cmd/menu/menu.c |   38 ++++++++++++++++++++++++++------------
 3 files changed, 35 insertions(+), 13 deletions(-)
diff --git a/cmd/menu/dat.h b/cmd/menu/dat.h
index 6e0855e..46cc0f8 100644
--- a/cmd/menu/dat.h
+++ b/cmd/menu/dat.h
@@ -72,6 +72,9 @@ EXTERN int	result;
 EXTERN  char*	(*find)(const char*, const char*);
 EXTERN  int	(*compare)(const char*, const char*, size_t);
 
+EXTERN char*	prompt;
+EXTERN int	promptw;
+
 EXTERN char	buffer[8092];
 EXTERN char*	_buffer;
 
diff --git a/cmd/menu/main.c b/cmd/menu/main.c
index 26d8bf0..0ff4271 100644
--- a/cmd/menu/main.c
+++ b/cmd/menu/main.c
@@ -21,7 +21,7 @@ static char*	ectl;
 
 static void
 usage(void) {
-	fatal("usage: wimenu -i [-h <history>] [-a <address>]\n");
+	fatal("usage: wimenu -i [-h <history>] [-a <address>] [-p <prompt>]\n");
 }
 
 static int
@@ -214,6 +214,8 @@ main(int argc, char *argv[]) {
 	fmtinstall('r', errfmt);
 	address = getenv("WMII_ADDRESS");
 	histfile = nil;
+	prompt = nil;
+	promptw = 0;
 
 	find = strstr;
 	compare = strncmp;
@@ -230,6 +232,9 @@ main(int argc, char *argv[]) {
 	case 'n':
 		ndump = strtol(EARGF(usage()), nil, 10);
 		break;
+	case 'p':
+		prompt = EARGF(usage());
+		break;
 	case 'i':
 		find = strcasestr;
 		compare = strncasecmp;
diff --git a/cmd/menu/menu.c b/cmd/menu/menu.c
index 6f726c3..56ec004 100644
--- a/cmd/menu/menu.c
+++ b/cmd/menu/menu.c
@@ -117,20 +117,30 @@ next:
 
 static void
 menu_draw(void) {
-	Rectangle r, r2;
+	Rectangle r, rd, rp, r2;
 	CTuple *c;
 	Item *i;
 	int inputw, itemoff, end, pad, n;
 
 	r = barwin->r;
 	r = rectsetorigin(r, ZP);
-	r2 = r;
 
 	pad = (font->height & ~1);
-	inputw = min(Dx(r) / 3, maxwidth);
+
+	rd = r;
+	if (prompt) {
+		if (!promptw)
+			promptw = textwidth(font, prompt) + 2 * ltwidth;
+		rd.min.x += promptw;
+
+		rp = r;
+		rp.max.x = promptw;
+	}
+
+	inputw = min(Dx(rd) / 3, maxwidth);
 	inputw = max(inputw, textwidth(font, input.string)) + pad;
 	itemoff = inputw + 2 * ltwidth;
-	end = Dx(r) - ltwidth;
+	end = Dx(rd) - ltwidth;
 
 	fill(ibuf, r, cnorm.bg);
 
@@ -155,10 +165,11 @@ menu_draw(void) {
 	if(matchidx == nil)
 		matchidx = matchstart;
 
+	r2 = rd;
 	for(i=matchstart; i->string; i=i->next) {
-		r2.min.x = itemoff;
+		r2.min.x = promptw + itemoff;
 		itemoff  = itemoff + i->width + pad;
-		r2.max.x = min(itemoff, end);
+		r2.max.x = promptw + min(itemoff, end);
 		if(i != matchstart && itemoff > end)
 			break;
 
@@ -170,23 +181,26 @@ menu_draw(void) {
 			break;
 	}
 
-	r2 = r;
-	r2.min.x = inputw;
+	r2 = rd;
+	r2.min.x = promptw + inputw;
 	if(matchstart != matchfirst)
 		drawstring(ibuf, font, r2, West, "<", cnorm.fg);
 	if(matchend->next != matchfirst)
 		drawstring(ibuf, font, r2, East, ">", cnorm.fg);
-	r2 = r;
-	r2.max.x = inputw;
+	r2 = rd;
+	r2.max.x = promptw + inputw;
 	drawstring(ibuf, font, r2, West, input.string, cnorm.fg);
 
-	r2.min.x = textwidth_l(font, input.string, input.pos - input.string) + pad/2 - 1;
+	r2.min.x = promptw + textwidth_l(font, input.string, input.pos - input.string) + pad/2 - 1;
 	r2.max.x = r2.min.x + 2;
 	r2.min.y++;
 	r2.max.y--;
 	border(ibuf, r2, 1, cnorm.border);
 
-	border(ibuf, r, 1, cnorm.border);
+	if (prompt)
+		drawstring(ibuf, font, rp, West, prompt, cnorm.fg);
+
+	border(ibuf, rd, 1, cnorm.border);
 	copyimage(barwin, r, ibuf, ZP);
 }
 
-- 
1.6.2.rc2.17.gcdd2484