From b8f22b5a434a67c2e64b831b0ef9236ec32e611a Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Thu, 12 Mar 2009 19:01:05 +0100
Subject: [PATCH] Added a no-color mode with inverse A_REVERSE and A_STANDOUT
 for the modeline and the highlighted line respectively.

---
 selector.cc | 66 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 38 insertions(+), 28 deletions(-)

diff --git a/selector.cc b/selector.cc
index 807f1a7..8616f1c 100644
--- a/selector.cc
+++ b/selector.cc
@@ -49,6 +49,7 @@ int buffer_size = 1024;
 int nb_lines_max = 10000;
 char pattern_separator = ';';
 int output_to_vt_buffer = 0;
+int with_colors = 0;
 
 //////////////////////////////////////////////////////////////////////
 
@@ -231,9 +232,15 @@ void update_screen(int *current_line, int *temporary_line, int motion,
         // Highlight the highlighted line ...
 
         if(l == new_line) {
-          attron(COLOR_PAIR(2));
-          addnstr(buffer, console_width);
-          attroff(COLOR_PAIR(2));
+          if(with_colors) {
+            attron(COLOR_PAIR(2));
+            addnstr(buffer, console_width);
+            attroff(COLOR_PAIR(2));
+          } else {
+            attron(A_STANDOUT);
+            addnstr(buffer, console_width);
+            attroff(A_STANDOUT);
+          }
         } else {
           addnstr(buffer, console_width);
         }
@@ -276,9 +283,15 @@ void update_screen(int *current_line, int *temporary_line, int motion,
   buffer[console_width] = '\0';
 
   move(0, 0);
-  attron(COLOR_PAIR(1));
-  addnstr(buffer, console_width);
-  attroff(COLOR_PAIR(1));
+  if(with_colors) {
+    attron(COLOR_PAIR(1));
+    addnstr(buffer, console_width);
+    attroff(COLOR_PAIR(1));
+  } else {
+    attron(A_REVERSE);
+    addnstr(buffer, console_width);
+    attroff(A_REVERSE);
+  }
 
   // We are done
 
@@ -389,33 +402,27 @@ int main(int argc, char **argv) {
 
   initscr();
 
-  if(!has_colors()) {
-    cerr << "No colors." << endl;
-    curs_set(1);
-    endwin();
-    exit(1);
+  if(has_colors()) {
+    with_colors = 1;
+    start_color();
+    switch(theme) {
+    default:
+    case 0:
+      init_pair(1, COLOR_WHITE, COLOR_GREEN);
+      init_pair(2, COLOR_BLACK, COLOR_YELLOW);
+      break;
+    case 1:
+      init_pair(1, COLOR_BLACK, COLOR_GREEN);
+      init_pair(2, COLOR_BLACK, COLOR_YELLOW);
+      break;
+    }
   }
 
   noecho();
-  curs_set(0);
-  keypad(stdscr, TRUE);
-
-  start_color();
-
-  switch(theme) {
-  default:
-  case 0:
-    init_pair(1, COLOR_WHITE, COLOR_GREEN);
-    init_pair(2, COLOR_BLACK, COLOR_YELLOW);
-    break;
-  case 1:
-    init_pair(1, COLOR_BLACK, COLOR_GREEN);
-    init_pair(2, COLOR_BLACK, COLOR_YELLOW);
-    break;
-  }
+  curs_set(0); // Hide the cursor
+  keypad(stdscr, TRUE); // So that the arrow keys work
 
   int key;
-
   int current_line = 0, temporary_line = 0;
 
   update_screen(&current_line, &temporary_line, 0, nb_lines, lines, patterns, no_blink);
@@ -511,5 +518,8 @@ int main(int argc, char **argv) {
     delete[] lines[l];
   }
 
+  curs_set(1);
+  endwin();
+
   exit(0);
 }
-- 
2.39.5