Richard B's patch for resize behaviour. The scrollback now contains

[u/mdw/putty] / terminal.h

diff --git a/terminal.h b/terminal.h
index daadd70..fe8263c 100644 (file)
--- a/terminal.h
+++ b/terminal.h
@@ -20,6 +20,15 @@ typedef struct {
     int y, x;
 } pos;
 
+#ifdef OPTIMISE_SCROLL
+struct scrollregion {
+    struct scrollregion *next;
+    int topline; /* Top line of scroll region. */
+    int botline; /* Bottom line of scroll region. */
+    int lines; /* Number of lines to scroll by - +ve is forwards. */
+};
+#endif /* OPTIMISE_SCROLL */
+
 struct terminal_tag {
 
     int compatibility_level;
@@ -28,6 +37,8 @@ struct terminal_tag {
     tree234 *screen;                  /* lines on primary screen */
     tree234 *alt_screen;              /* lines on alternate screen */
     int disptop;                      /* distance scrolled back (0 or -ve) */
+    int tempsblines;                  /* number of lines in temporary
+                                         scrollback */
 
     unsigned long *cpos;              /* cursor position (convenience) */
 
@@ -47,6 +58,10 @@ struct terminal_tag {
     term->cpos = lineptr(term->curs.y) + term->curs.x; \
 } while(0)
 
+#ifdef OPTIMISE_SCROLL
+    struct scrollregion *scrollhead, *scrolltail;
+#endif /* OPTIMISE_SCROLL */
+
     unsigned long curr_attr, save_attr;
     unsigned long erase_char;
 
@@ -105,6 +120,7 @@ struct terminal_tag {
     int alt_cset, alt_sco_acs, alt_utf;
     int alt_t, alt_b;
     int alt_which;
+    int alt_sblines; /* # of lines on alternate screen that should be used for scrollback. */
 
 #define ARGS_MAX 32                   /* max # of esc sequence arguments */
 #define ARG_DEFAULT 0                 /* if an arg isn't specified */