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/* Data/register window display.
Copyright (C) 1998-2019 Free Software Foundation, Inc.
Contributed by Hewlett-Packard Company.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "tui/tui.h"
#include "tui/tui-data.h"
#include "tui/tui-wingeneral.h"
#include "tui/tui-regs.h"
#include "tui/tui-windata.h"
#include "gdb_curses.h"
/*****************************************
** STATIC LOCAL FUNCTIONS FORWARD DECLS **
******************************************/
/*****************************************
** PUBLIC FUNCTIONS **
******************************************/
/* Answer the index first element displayed. If none are displayed,
then return (-1). */
int
tui_data_window::first_data_item_displayed ()
{
for (int i = 0; i < regs_content.size (); i++)
{
struct tui_gen_win_info *data_item_win;
data_item_win = regs_content[i].get ();
if (data_item_win->handle != NULL && data_item_win->is_visible)
return i;
}
return -1;
}
/* Function to delete all the item windows in the data window. This
is usually done when the data window is scrolled. */
void
tui_delete_data_content_windows (void)
{
for (auto &&win : TUI_DATA_WIN->regs_content)
{
tui_delete_win (win->handle);
win->handle = NULL;
win->is_visible = false;
}
}
void
tui_erase_data_content (const char *prompt)
{
werase (TUI_DATA_WIN->handle);
tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
if (prompt != NULL)
{
int half_width = (TUI_DATA_WIN->width - 2) / 2;
int x_pos;
if (strlen (prompt) >= half_width)
x_pos = 1;
else
x_pos = half_width - strlen (prompt);
mvwaddstr (TUI_DATA_WIN->handle,
(TUI_DATA_WIN->height / 2),
x_pos,
(char *) prompt);
}
wrefresh (TUI_DATA_WIN->handle);
}
/* This function displays the data that is in the data window's
content. It does not set the content. */
void
tui_display_all_data (void)
{
if (TUI_DATA_WIN->regs_content.empty ())
tui_erase_data_content (NO_DATA_STRING);
else
{
tui_erase_data_content (NULL);
tui_delete_data_content_windows ();
tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
tui_display_registers_from (0);
}
}
/* Function to redisplay the contents of the data window. */
void
tui_data_window::refresh_all ()
{
tui_erase_data_content (NULL);
if (!regs_content.empty ())
{
int first_element = first_data_item_displayed ();
if (first_element >= 0) /* Re-use existing windows. */
{
int first_line = (-1);
if (first_element < regs_content.size ())
first_line = line_from_reg_element_no (first_element);
if (first_line >= 0)
{
tui_erase_data_content (NULL);
tui_display_registers_from_line (first_line);
}
}
}
}
/* Scroll the data window vertically forward or backward. */
void
tui_data_window::do_scroll_vertical (int num_to_scroll)
{
int first_element_no;
int first_line = (-1);
first_element_no = first_data_item_displayed ();
if (first_element_no < regs_content.size ())
first_line = line_from_reg_element_no (first_element_no);
else
{ /* Calculate the first line from the element number which is in
the general data content. */
}
if (first_line >= 0)
{
first_line += num_to_scroll;
tui_erase_data_content (NULL);
tui_delete_data_content_windows ();
tui_display_registers_from_line (first_line);
}
}
/*****************************************
** STATIC LOCAL FUNCTIONS **
******************************************/
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