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diff src/redisplay-tty.c @ 5398:5256fedd50e6

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issue 757 - tty device metric for num-color-cells -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2011-03-28 Jeff Sparkes <jsparkes@gmail.com> * console-tty-impl.h (struct tty_console): Add field for number of displayable colors. * device-tty.c (tty_device_system_metrics): Return metrics for num-color-cells and num-bit-planes. Tracker issue 757. * device.c: There are two required args for device-system-metric. * redisplay-tty.c (init_tty_for_redisplay): Retrieve number of colors from terminal description. Default to 2 if none found.
author Jeff Sparkes <jsparkes@gmail.com>
date Mon, 28 Mar 2011 09:25:15 -0400
parents 97eb4942aec8
children 248176c74e6b
line wrap: on
line diff
--- a/src/redisplay-tty.c	Wed Mar 23 00:08:35 2011 +0100
+++ b/src/redisplay-tty.c	Mon Mar 28 09:25:15 2011 -0400
@@ -1116,6 +1116,13 @@
   if (CONSOLE_TTY_DATA (c)->width <= 0 || CONSOLE_TTY_DATA (c)->height <= 0)
     return TTY_SIZE_UNSPECIFIED;
 
+  CONSOLE_TTY_DATA (c)->colors = tgetnum("Co");
+  if (CONSOLE_TTY_DATA (c)->colors == 0)
+    CONSOLE_TTY_DATA (c)->colors = tgetnum("colors");
+  if (CONSOLE_TTY_DATA (c)->colors == 0)
+    /* There is always foreground and background. */
+    CONSOLE_TTY_DATA (c)->colors = 2;
+
   /*
    * Initialize cursor motion information.
    */