X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/6fa2a729fee620a61088ae2a4f22db838a5ca89a..aef05b788c268d43559a0183d1efe9c458724b94:/terminal.c

diff --git a/terminal.c b/terminal.c
index db61a1ac..b88fe069 100644
--- a/terminal.c
+++ b/terminal.c
@@ -1,3 +1,7 @@
+/*
+ * Terminal emulator.
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
@@ -1180,6 +1184,7 @@ static void power_on(Terminal *term, int clear)
 {
     term->alt_x = term->alt_y = 0;
     term->savecurs.x = term->savecurs.y = 0;
+    term->alt_savecurs.x = term->alt_savecurs.y = 0;
     term->alt_t = term->marg_t = 0;
     if (term->rows != -1)
 	term->alt_b = term->marg_b = term->rows - 1;
@@ -1192,18 +1197,22 @@ static void power_on(Terminal *term, int clear)
     }
     term->alt_om = term->dec_om = term->cfg.dec_om;
     term->alt_ins = term->insert = FALSE;
-    term->alt_wnext = term->wrapnext = term->save_wnext = FALSE;
+    term->alt_wnext = term->wrapnext =
+        term->save_wnext = term->alt_save_wnext = FALSE;
     term->alt_wrap = term->wrap = term->cfg.wrap_mode;
-    term->alt_cset = term->cset = term->save_cset = 0;
-    term->alt_utf = term->utf = term->save_utf = 0;
+    term->alt_cset = term->cset = term->save_cset = term->alt_save_cset = 0;
+    term->alt_utf = term->utf = term->save_utf = term->alt_save_utf = 0;
     term->utf_state = 0;
-    term->alt_sco_acs = term->sco_acs = term->save_sco_acs = 0;
-    term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = CSET_ASCII;
+    term->alt_sco_acs = term->sco_acs =
+        term->save_sco_acs = term->alt_save_sco_acs = 0;
+    term->cset_attr[0] = term->cset_attr[1] =
+        term->save_csattr = term->alt_save_csattr = CSET_ASCII;
     term->rvideo = 0;
     term->in_vbell = FALSE;
     term->cursor_on = 1;
     term->big_cursor = 0;
-    term->default_attr = term->save_attr = term->curr_attr = ATTR_DEFAULT;
+    term->default_attr = term->save_attr =
+	term->alt_save_attr = term->curr_attr = ATTR_DEFAULT;
     term->term_editing = term->term_echoing = FALSE;
     term->app_cursor_keys = term->cfg.app_cursor;
     term->app_keypad_keys = term->cfg.app_keypad;
@@ -1743,6 +1752,7 @@ static int find_last_nonempty_line(Terminal * term, tree234 * screen)
 static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
 {
     int t;
+    pos tp;
     tree234 *ttr;
 
     if (!which)
@@ -1790,6 +1800,35 @@ static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
 	t = term->sco_acs;
 	if (!reset) term->sco_acs = term->alt_sco_acs;
 	term->alt_sco_acs = t;
+
+	tp = term->savecurs;
+	if (!reset && !keep_cur_pos)
+	    term->savecurs = term->alt_savecurs;
+	term->alt_savecurs = tp;
+        t = term->save_cset;
+        if (!reset && !keep_cur_pos)
+            term->save_cset = term->alt_save_cset;
+        term->alt_save_cset = t;
+        t = term->save_csattr;
+        if (!reset && !keep_cur_pos)
+            term->save_csattr = term->alt_save_csattr;
+        term->alt_save_csattr = t;
+        t = term->save_attr;
+        if (!reset && !keep_cur_pos)
+            term->save_attr = term->alt_save_attr;
+        term->alt_save_attr = t;
+        t = term->save_utf;
+        if (!reset && !keep_cur_pos)
+            term->save_utf = term->alt_save_utf;
+        term->alt_save_utf = t;
+        t = term->save_wnext;
+        if (!reset && !keep_cur_pos)
+            term->save_wnext = term->alt_save_wnext;
+        term->alt_save_wnext = t;
+        t = term->save_sco_acs;
+        if (!reset && !keep_cur_pos)
+            term->save_sco_acs = term->alt_save_sco_acs;
+        term->alt_save_sco_acs = t;
     }
 
     if (reset && term->screen) {
@@ -4822,10 +4861,12 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise)
 		!= newline[j].attr) {
 		int k;
 
-		for (k = laststart; k < j; k++)
-		    term->disptext[i]->chars[k].attr |= ATTR_INVALID;
+		if (!dirtyrect) {
+		    for (k = laststart; k < j; k++)
+			term->disptext[i]->chars[k].attr |= ATTR_INVALID;
 
-		dirtyrect = TRUE;
+		    dirtyrect = TRUE;
+		}
 	    }
 
 	    if (dirtyrect)
@@ -5572,7 +5613,16 @@ void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked,
     selpoint.x = x;
     unlineptr(ldata);
 
-    if (raw_mouse) {
+    /*
+     * If we're in the middle of a selection operation, we ignore raw
+     * mouse mode until it's done (we must have been not in raw mouse
+     * mode when it started).
+     * This makes use of Shift for selection reliable, and avoids the
+     * host seeing mouse releases for which they never saw corresponding
+     * presses.
+     */
+    if (raw_mouse &&
+	(term->selstate != ABOUT_TO) && (term->selstate != DRAGGING)) {
 	int encstate = 0, r, c;
 	char abuf[16];