After Bill Gray: "touchoverlap() un-touches parts of lines (Issue #149)"

wmcbrine · Jul 12, 2023 · 5c62af0 · 5c62af0
1 parent de6c548
commit 5c62af0
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/pdcurses/touch.c b/pdcurses/touch.c
@@ -196,8 +196,12 @@ int touchoverlap(const WINDOW *win1, WINDOW *win2)
 
     for (y = starty; y < endy; y++)
     {
-        win2->_firstch[y] = startx;
-        win2->_lastch[y] = endx;
+        int first = win2->_firstch[y];
+
+        if (first == _NO_CHANGE || win2->_lastch[y] < endx)
+            win2->_lastch[y] = endx;
+        if (first == _NO_CHANGE || first > startx)
+            win2->_firstch[y] = startx;
     }
 
     return OK;