top: implemented more than two abreast summary display

Well, here it is. This is what the preceding series of
commits was leading to: an ability to show up to eight
cpus per Summary Area line. In reality, a self imposed
limit of four cpus on such lines seems more realistic.

In any case, the new capability could also be employed
along with that '!' toggle which consolidates adjacent
cpus into a solitary graph. When used together the '4'
and '!' toggles should accommodate any number of cpus.

Signed-off-by: Jim Warner <james.warner@comcast.net>

1 files changed, 41 insertions, 25 deletions

diff --git a/src/top/top.c b/src/top/top.c
index b8395bd..48e76a8 100644
--- a/src/top/top.c
+++ b/src/top/top.c
@@ -227,7 +227,8 @@ static int Numa_node_sel = -1;
 #define GRAPH_length_max  100  // the actual bars or blocks
 #define GRAPH_length_min   10  // the actual bars or blocks
 #define GRAPH_prefix_std   25  // '%Cpunnn: 100.0/100.0 100[' or 'nnn-nnn: 100.0/100.0 100['
-#define GRAPH_suffix        2  // ending ] + trailing space
+#define GRAPH_prefix_abv   12  // '%Cpunnn:100[' or 'nnn-nnn:100[' or 'GiB Mem 100[' or 'GiB Swap 99['
+#define GRAPH_suffix        2  // '] ' (bracket + trailing space)
 static float Graph_adj;        // bars/blocks scaling factor
 static int   Graph_len;        // scaled length (<= GRAPH_length_max)
 static const char Graph_blks[] = "                                                                                                    ";
@@ -249,7 +250,7 @@ static char Adjoin_sp[] =  "   ";
 static char Adjoin_sp[] =  " ~1 ~6 ";
 #define ADJOIN_space  (sizeof(Adjoin_sp) - 5)    // 1 for null + 4 unprintable
 #endif
-#define ADJOIN_limit  1
+#define ADJOIN_limit  8
 
         /* Support for the new library API -- acquired (if necessary)
            at program startup and referenced throughout our lifetime. */
@@ -2070,8 +2071,10 @@ static void adj_geometry (void) {
 
    // prepare to customize potential cpu/memory graphs
    if (Curwin->rc.double_up) {
-      Graph_len = (Screen_cols - ADJOIN_space - (2 * (GRAPH_prefix_std + GRAPH_suffix))) / 2;
-      Graph_len += (Screen_cols % 2) ? 0 : 1;
+      int num = (Curwin->rc.double_up + 1);
+      int pfx = (Curwin->rc.double_up < 2) ? GRAPH_prefix_std : GRAPH_prefix_abv;
+      Graph_len =  (Screen_cols - (ADJOIN_space * Curwin->rc.double_up) - (num * (pfx + GRAPH_suffix))) / num;
+      Graph_len += (Screen_cols % num) ? 0 : 1;
    } else {
       Graph_len = Screen_cols - (GRAPH_prefix_std + GRAPH_length_max + GRAPH_suffix);
       if (Graph_len >= 0) Graph_len = GRAPH_length_max;
@@ -3947,7 +3950,7 @@ static const char *configs_file (FILE *fp, const char *name, float *delay) {
          return p;
       if (w->rc.graph_mems < 0 || w->rc.graph_mems > 2)
          return p;
-      if (w->rc.double_up < 0 || w->rc.double_up > ADJOIN_limit)
+      if (w->rc.double_up < 0 || w->rc.double_up >= ADJOIN_limit)
          return p;
       // can't check upper bounds until Cpu_cnt is known
       if (w->rc.combine_cpus < 0)
@@ -5704,7 +5707,8 @@ static void keys_summary (int ch) {
          }
          break;
       case '4':
-         w->rc.double_up = !w->rc.double_up;
+         w->rc.double_up += 1;
+         if (w->rc.double_up >= ADJOIN_limit) w->rc.double_up = 0;
          OFFw(w, (View_CPUSUM | View_CPUNOD));
          break;
       case 'C':
@@ -6174,17 +6178,17 @@ static struct rx_st *sum_rx (long total, long part1, long part2, int style) {
          * A *Helper* function to show multiple lines of summary information |
          * as a single line. We return the number of lines actually printed. | */
 static inline int sum_see (const char *str, int nobuf) {
-   static char row[ROWMINSIZ];
+   static char row[ROWMAXSIZ];
    static int tog;
    char *p;
 
    p = scat(row, str);
    if (Curwin->rc.double_up
-   && (!nobuf)
-   && (!tog)) {
-      scat(p, Adjoin_sp);
-      tog = 1;
-      return 0;
+   && (!nobuf)) {
+      if (++tog <= Curwin->rc.double_up) {
+         scat(p, Adjoin_sp);
+         return 0;
+      }
    }
    scat(p, "\n");
    show_special(0, row);
@@ -6219,10 +6223,14 @@ static int sum_tics (struct stat_stack *this, const char *pfx, int nobuf) {
       (who or what is explained by the passed prefix) */
    if (Curwin->rc.graph_cpus) {
       rx = sum_rx(tot_frme, rSv(stat_SUM_USR), rSv(stat_SUM_SYS), Curwin->rc.graph_cpus);
-      return sum_see(fmtmk("%s ~3%#5.1f~2/%-#5.1f~3 %3.0f%s"
-         , pfx, rx->pcnt_one, rx->pcnt_two, rx->pcnt_tot
-         , rx->graph)
-         , nobuf);
+      if (Curwin->rc.double_up > 1)
+         return sum_see(fmtmk("%s~3%3.0f%s", pfx, rx->pcnt_tot, rx->graph), nobuf);
+      else {
+         return sum_see(fmtmk("%s ~3%#5.1f~2/%-#5.1f~3 %3.0f%s"
+            , pfx, rx->pcnt_one, rx->pcnt_two, rx->pcnt_tot
+            , rx->graph)
+            , nobuf);
+      }
    } else {
       return sum_see(fmtmk(Cpu_States_fmts, pfx
          , (float)rSv(stat_US) * scale, (float)rSv(stat_SY) * scale
@@ -6425,18 +6433,26 @@ static void do_memory (void) {
       my_misc = MEM_VAL(mem_TOT) - MEM_VAL(mem_FRE) - my_qued;
       my_used = MEM_VAL(mem_TOT) - MEM_VAL(mem_AVL) - my_misc;
 
-      prT(bfT(0), mkM(MEM_VAL(mem_TOT)));
       rx = sum_rx(MEM_VAL(mem_TOT), my_misc, my_used, Curwin->rc.graph_mems);
-      snprintf(row, sizeof(row), "%s %s:~3%#5.1f~2/%-9.9s~3%s"
-         , scT(label), N_txt(WORD_abv_mem_txt), rx->pcnt_tot, bfT(0)
-         , rx->graph);
+      if (Curwin->rc.double_up > 1)
+         snprintf(row, sizeof(row), "%s %s~3%3.0f%s"
+            , scT(label), N_txt(WORD_abv_mem_txt), rx->pcnt_tot, rx->graph);
+      else {
+         prT(bfT(0), mkM(MEM_VAL(mem_TOT)));
+         snprintf(row, sizeof(row), "%s %s:~3%#5.1f~2/%-9.9s~3%s"
+            , scT(label), N_txt(WORD_abv_mem_txt), rx->pcnt_tot, bfT(0)
+            , rx->graph);
+      }
       Msg_row += sum_see(row, mem2UP);
-
-      prT(bfT(1), mkM(MEM_VAL(swp_TOT)));
       rx = sum_rx(MEM_VAL(swp_TOT), 0, MEM_VAL(swp_USE), Curwin->rc.graph_mems);
-      snprintf(row, sizeof(row), "%s %s:~3%#5.1f~2/%-9.9s~3%s"
-         , scT(label), N_txt(WORD_abv_swp_txt), rx->pcnt_two, bfT(1)
-         , rx->graph);
+      if (Curwin->rc.double_up > 1)
+         snprintf(row, sizeof(row), "%s %s~3%3.0f%s"
+            , scT(label), N_txt(WORD_abv_swp_txt), rx->pcnt_tot, rx->graph);
+      else {
+         prT(bfT(1), mkM(MEM_VAL(swp_TOT)));
+         snprintf(row, sizeof(row), "%s %s:~3%#5.1f~2/%-9.9s~3%s"
+            , scT(label), N_txt(WORD_abv_swp_txt), rx->pcnt_two, bfT(1), rx->graph);
+      }
       Msg_row += sum_see(row, 1);
 
    } else {