allow 3/4 component color rrdtool graph --color too -- Alex

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2@549 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_graph.c b/program/src/rrd_graph.c
index be5574133d6171310989a33356e785bce5a4d3f0..bb4c542ec75fb95aa8b5413cfaf1a50faad2ce58 100644 (file)
--- a/program/src/rrd_graph.c
+++ b/program/src/rrd_graph.c
@@ -3112,6 +3112,22 @@ rrd_graph_options(int argc, char *argv[],image_desc_t *im)
                 int ci;
                int col_len = col_end - col_start;
                switch (col_len){
+                       case 3:
+                               color = (
+                                       ((color & 0xF00) * 0x110000) |
+                                       ((color & 0x0F0) * 0x011000) |
+                                       ((color & 0x00F) * 0x001100) |
+                                       0x000000FF
+                                       );
+                               break;
+                       case 4:
+                               color = (
+                                       ((color & 0xF000) * 0x11000) |
+                                       ((color & 0x0F00) * 0x01100) |
+                                       ((color & 0x00F0) * 0x00110) |
+                                       ((color & 0x000F) * 0x00011)
+                                       );
+                               break;
                        case 6:
                                color = (color << 8) + 0xff /* shift left by 8 */;
                                break;