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Prevent flickering when redrawing the TUI source window

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tui_win_info::refresh_window simply calls wrefresh, which internally
does a doupdate.
This redraws the source background window without the source pad.
Then prefresh of the source pad draws the actual source code on top,
which flickers.

By changing this to wnoutrefresh, the actual drawing on the screen is
only done once in the following prefresh, without flickering.

gdb/ChangeLog:

2021-01-05  Hannes Domani  <ssbssa@yahoo.de>

	* tui/tui-winsource.c (tui_source_window_base::refresh_window):
	Call wnoutrefresh instead of tui_win_info::refresh_window.
This commit is contained in:
Hannes Domani
2020-12-21 14:26:29 +01:00
parent 1b6d4bb223
commit 5519536196
2 changed files with 8 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2021-01-05 Hannes Domani <ssbssa@yahoo.de>
* tui/tui-winsource.c (tui_source_window_base::refresh_window):
Call wnoutrefresh instead of tui_win_info::refresh_window.
2021-01-05 Hannes Domani <ssbssa@yahoo.de>
* tui/tui-source.c (tui_source_window::show_line_number):

4
gdb/tui/tui-winsource.c
View File

@ -252,7 +252,9 @@ tui_source_window_base::show_source_line (int lineno)
void
tui_source_window_base::refresh_window ()
{
tui_win_info::refresh_window ();
/* tui_win_info::refresh_window would draw the empty background window to
the screen, potentially creating a flicker. */
wnoutrefresh (handle.get ());
int pad_width = std::max (m_max_length, width);
int left_margin = 1 + TUI_EXECINFO_SIZE + extra_margin ();