From 5116e40581ad5f2a326e3022a1f148402cf26b4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Tue, 29 Sep 2020 10:03:00 +0200
Subject: [PATCH] term: add term_damage_cursor() and term_damage_margins()
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term_damage_cursor() damages the cell where the cursor is currently
at. This can be used to ensure the cursor is re-drawn, if there aren’t
any other pending updates.

term_damage_margins() requests the margins be redrawn the next time we
render the grid.
---
 terminal.c | 13 +++++++++++++
 terminal.h |  5 +++++
 2 files changed, 18 insertions(+)

diff --git a/terminal.c b/terminal.c
index 5e0dc65a..0840a45c 100644
--- a/terminal.c
+++ b/terminal.c
@@ -1626,6 +1626,19 @@ term_damage_view(struct terminal *term)
     term_damage_rows_in_view(term, 0, term->rows - 1);
 }
 
+void
+term_damage_cursor(struct terminal *term)
+{
+    term->grid->cur_row->cells[term->grid->cursor.point.col].attrs.clean = 0;
+    term->grid->cur_row->dirty = true;
+}
+
+void
+term_damage_margins(struct terminal *term)
+{
+    term->render.margins = true;
+}
+
 void
 term_damage_scroll(struct terminal *term, enum damage_type damage_type,
                    struct scroll_region region, int lines)
diff --git a/terminal.h b/terminal.h
index 12e93ce2..13339c3b 100644
--- a/terminal.h
+++ b/terminal.h
@@ -388,6 +388,8 @@ struct terminal {
             bool title;
         } pending;
 
+        bool margins;  /* Someone explicitly requested a refresh of the margins */
+
         int scrollback_lines; /* Number of scrollback lines, from conf (TODO: move out from render struct?) */
 
         struct {
@@ -512,6 +514,9 @@ void term_damage_rows_in_view(struct terminal *term, int start, int end);
 void term_damage_all(struct terminal *term);
 void term_damage_view(struct terminal *term);
 
+void term_damage_cursor(struct terminal *term);
+void term_damage_margins(struct terminal *term);
+
 void term_reset_view(struct terminal *term);
 
 void term_damage_scroll(