[PATCH] Don't erase TUI source window when switching focus
Tom Tromey
tromey@adacore.com
Fri Oct 9 20:27:52 GMT 2020
PR tui/26719 points out that switching the focus can erase the TUI
source window. This is a regression introduced by the patch to switch
the source window to using a pad.
This patch fixes the bug by arranging to call prefresh whenever the
window is refreshed.
gdb/ChangeLog
2020-10-09 Tom Tromey <tromey@adacore.com>
PR tui/26719
* tui/tui-winsource.h (struct tui_source_window_base)
<refresh_window>: Rename from refresh_pad.
* tui/tui-winsource.c (tui_source_window_base::refresh_window):
Rename from refresh_pad.
(tui_source_window_base::show_source_content)
(tui_source_window_base::do_scroll_horizontal): Update.
gdb/testsuite/ChangeLog
2020-10-09 Tom Tromey <tromey@adacore.com>
PR tui/26719
* gdb.tui/list.exp: Check source window contents after focus
change.
---
gdb/ChangeLog | 10 ++++++++++
gdb/testsuite/ChangeLog | 6 ++++++
gdb/testsuite/gdb.tui/list.exp | 3 +++
gdb/tui/tui-winsource.c | 8 ++++----
gdb/tui/tui-winsource.h | 5 ++---
5 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/gdb/testsuite/gdb.tui/list.exp b/gdb/testsuite/gdb.tui/list.exp
index 576b33fa869..435540418ed 100644
--- a/gdb/testsuite/gdb.tui/list.exp
+++ b/gdb/testsuite/gdb.tui/list.exp
@@ -35,8 +35,11 @@ Term::command "layout asm"
Term::check_contents "asm window shows main" "$hex <main>"
Term::command "list main"
+Term::dump_screen
Term::check_contents "list main" "21 *return 0"
# The following 'focus next' must be immediately after 'list main' to
# ensure that GDB has a valid idea of what is currently focused.
Term::command "focus next"
Term::check_contents "focus next" "Focus set to cmd window"
+# PR tui/26719 - switching focus would clear the source window.
+Term::check_contents "source is still visible" "21 *return 0"
diff --git a/gdb/tui/tui-winsource.c b/gdb/tui/tui-winsource.c
index 30b8f69027a..957d9310f7a 100644
--- a/gdb/tui/tui-winsource.c
+++ b/gdb/tui/tui-winsource.c
@@ -250,8 +250,10 @@ tui_source_window_base::show_source_line (int lineno)
/* See tui-winsource.h. */
void
-tui_source_window_base::refresh_pad ()
+tui_source_window_base::refresh_window ()
{
+ tui_win_info::refresh_window ();
+
int pad_width = std::max (m_max_length, width);
int left_margin = 1 + TUI_EXECINFO_SIZE + extra_margin ();
int view_width = width - left_margin - 1;
@@ -278,8 +280,6 @@ tui_source_window_base::show_source_content ()
for (int lineno = 0; lineno < m_content.size (); lineno++)
show_source_line (lineno);
- refresh_pad ();
-
refresh_window ();
}
@@ -377,7 +377,7 @@ tui_source_window_base::do_scroll_horizontal (int num_to_scroll)
if (offset < 0)
offset = 0;
m_horizontal_offset = offset;
- refresh_pad ();
+ refresh_window ();
}
}
diff --git a/gdb/tui/tui-winsource.h b/gdb/tui/tui-winsource.h
index 5fc6a6d8126..6dcf0efe4b9 100644
--- a/gdb/tui/tui-winsource.h
+++ b/gdb/tui/tui-winsource.h
@@ -171,6 +171,8 @@ struct tui_source_window_base : public tui_win_info
/* Erase the source content. */
virtual void erase_source_content () = 0;
+ void refresh_window () override;
+
/* Return the start address and gdbarch. */
virtual void display_start_addr (struct gdbarch **gdbarch_p,
CORE_ADDR *addr_p) = 0;
@@ -179,9 +181,6 @@ struct tui_source_window_base : public tui_win_info
void show_source_content ();
- /* Re-display the pad in the window. */
- void refresh_pad ();
-
/* Called when the user "set style enabled" setting is changed. */
void style_changed ();
--
2.26.2
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