From 9a75045a764cb5bc4605102a0bdb97ba023df88a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s?= <andmarti@gmail.com>
Date: Wed, 12 May 2021 13:06:51 -0300
Subject: calc_offscr_sc_rows()/cols(): refresh first_frozen_after_rows/cols
 when decrementing rows/col to fit frozen rows/cols

---
 CHANGES    |  1 +
 src/cmds.c | 13 +++++++------
 src/doc    |  2 +-
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/CHANGES b/CHANGES
index 948a419..1e2e10b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -86,6 +86,7 @@ Added :showcols command that was missing.
 Handled issue #429
 handled issue #374
 Ignore SIGWINCH outside ncurses.
+triggers: Avoid segfault when not being able to load module. Issue #325
 
 
 
diff --git a/src/cmds.c b/src/cmds.c
index dd69013..0c43a41 100644
--- a/src/cmds.c
+++ b/src/cmds.c
@@ -68,15 +68,15 @@
 void syncref(register struct enode *e);
 extern int shall_quit;
 char insert_edit_submode;
-struct ent * freeents = NULL; // keep deleted ents around before sync_refs
+struct ent * freeents = NULL;    // keep deleted ents around before sync_refs
 wchar_t interp_line[BUFFERSIZE];
 extern graphADT graph;
 extern int yyparse(void);
 
 int offscr_sc_rows = 0, offscr_sc_cols = 0; // off screen spreadsheet rows and columns
-int num_frozen_after_rows = 0; // number of frozen rows after the calculated rows of calc_offscr_sc_rows()
-int first_frozen_after_rows =0; // starting point for such rows
-int num_frozen_after_cols = 0; // number of frozen cols after the calculated cols of calc_offscr_sc_cols()
+int num_frozen_after_rows = 0;   // number of frozen rows after the calculated rows of calc_offscr_sc_rows()
+int first_frozen_after_rows =0;  // starting point for such rows
+int num_frozen_after_cols = 0;   // number of frozen cols after the calculated cols of calc_offscr_sc_cols()
 int first_frozen_after_cols = 0; // starting point for such columns
 
 int center_hidden_cols = 0; // to be removed
@@ -2374,10 +2374,10 @@ int calc_offscr_sc_rows() {
         if (row_frozen[i]) {
             rows--;
             num_frozen_after_rows++;
+            if (i < first_frozen_after_rows) first_frozen_after_rows = i;
             fmtaft += row_format[i--]; // count the screen lines needed to display them as well
             continue;
         }
-        //rows--;
     }
 
     int changed = offscr_sc_rows;
@@ -2395,7 +2395,7 @@ int calc_offscr_sc_rows() {
         } else break;
     }
     if (changed != offscr_sc_rows) goto count;
-    //sc_info("1.OU off:%d rows%d RESROW:%d fmtbef:%d fmtaft:%d currow:%d maxrows:%d numbef:%d", offscr_sc_rows, rows, -RESROW, -fmtbef, fmtaft, currow, maxrows, numbef);
+    //sc_debug("off:%d, row_boundary:%d, num:%d first:%d", offscr_sc_rows, offscr_sc_rows + rows - num_frozen_after_rows - numbef, num_frozen_after_rows, first_frozen_after_rows);
     return rows - num_frozen_after_rows - numbef;
 }
 
@@ -2449,6 +2449,7 @@ int calc_offscr_sc_cols() {
         if (col_frozen[i]) {
             cols--;
             num_frozen_after_cols++;
+            if (i < first_frozen_after_cols) first_frozen_after_cols = i;
             fmtaft += fwidth[i--]; // count the screen lines needed to display them as well
             continue;
         }
diff --git a/src/doc b/src/doc
index f093bd2..7ef4730 100755
--- a/src/doc
+++ b/src/doc
@@ -401,7 +401,7 @@ Commands for handling cell content:
      :q[uit]!    Quit sc-im, ignoring unsaved changes.
 
      :load {file}
-                 Load {file} into the sc-im database.
+                 Load (or reload) {file} into the sc-im database.
 
                  {file} can be an sc format file (.sc), a comma-separated file
                  (.csv), a tab-separated file (.tab, .tsv),a markdown table
-- 
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