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Add optional full_window argument to TuiWindow.write

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To prevent flickering when first calling erase, then write, this new
argument indicates that the passed string contains the full contents of
the window.  This fills every unused cell of the window with a space, so
it's not necessary to call erase beforehand.

gdb/ChangeLog:

2021-05-27  Hannes Domani  <ssbssa@yahoo.de>

	* python/py-tui.c (tui_py_window::output): Add full_window
	argument.
	(gdbpy_tui_write): Parse "full_window" argument.

gdb/doc/ChangeLog:

2021-05-27  Hannes Domani  <ssbssa@yahoo.de>

	* python.texi (TUI Windows In Python): Document "full_window"
	argument.
This commit is contained in:
Hannes Domani
2020-11-22 16:51:30 +01:00
parent d5a6313e1c
commit bdef572304
4 changed files with 30 additions and 7 deletions
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20
gdb/python/py-tui.c
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@ -111,8 +111,9 @@ public:
}
}
/* Write STR to the window. */
void output (const char *str);
/* Write STR to the window. FULL_WINDOW is true to erase the window
contents beforehand. */
void output (const char *str, bool full_window);
/* A helper function to compute the viewport width. */
int viewport_width () const
@ -229,12 +230,18 @@ tui_py_window::do_scroll_vertical (int num_to_scroll)
}
void
tui_py_window::output (const char *text)
tui_py_window::output (const char *text, bool full_window)
{
if (m_inner_window != nullptr)
{
if (full_window)
werase (m_inner_window.get ());
tui_puts (text, m_inner_window.get ());
tui_wrefresh (m_inner_window.get ());
if (full_window)
check_and_display_highlight_if_needed ();
else
tui_wrefresh (m_inner_window.get ());
}
}
@ -405,13 +412,14 @@ gdbpy_tui_write (PyObject *self, PyObject *args)
{
gdbpy_tui_window *win = (gdbpy_tui_window *) self;
const char *text;
int full_window = 0;
if (!PyArg_ParseTuple (args, "s", &text))
if (!PyArg_ParseTuple (args, "s|i", &text, &full_window))
return nullptr;
REQUIRE_WINDOW (win);
win->window->output (text);
win->window->output (text, full_window);
Py_RETURN_NONE;
}