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binutils-gdb/gdb/tui/tui-windata.c

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/* Data/register window display.
Copyright (C) 1998-2015 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_first_data_item_displayed (void)
{
int element_no = (-1);
int i;
for (i = 0;
i < TUI_DATA_WIN->generic.content_size && element_no < 0;
i++)
{
struct tui_gen_win_info *data_item_win;
data_item_win = &((tui_win_content)
TUI_DATA_WIN->generic.content)[i]->which_element.data_window;
if (data_item_win->handle != (WINDOW *) NULL
&& data_item_win->is_visible)
element_no = i;
}
return element_no;
}
/* Answer the index of the first element in line_no. If line_no is
past the data area (-1) is returned. */
int
tui_first_data_element_no_in_line (int line_no)
{
int first_element_no = (-1);
/* First see if there is a register on line_no, and if so, set the
first element number. */
if ((first_element_no = tui_first_reg_element_no_inline (line_no)) == -1)
{ /* Looking at the general data, the 1st element on line_no. */
}
return first_element_no;
}
/* 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)
{
int i;
struct tui_gen_win_info *data_item_win_ptr;
for (i = 0; (i < TUI_DATA_WIN->generic.content_size); i++)
{
data_item_win_ptr = &((tui_win_content)
TUI_DATA_WIN->generic.content)[i]->which_element.data_window;
tui_delete_win (data_item_win_ptr->handle);
data_item_win_ptr->handle = NULL;
data_item_win_ptr->is_visible = FALSE;
}
}
void
tui_erase_data_content (char *prompt)
{
werase (TUI_DATA_WIN->generic.handle);
tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
if (prompt != (char *) NULL)
{
int half_width = (TUI_DATA_WIN->generic.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->generic.handle,
(TUI_DATA_WIN->generic.height / 2),
x_pos,
prompt);
}
wrefresh (TUI_DATA_WIN->generic.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->generic.content_size <= 0)
tui_erase_data_content (NO_DATA_STRING);
else
{
tui_erase_data_content ((char *) NULL);
tui_delete_data_content_windows ();
tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
tui_display_registers_from (0);
/* Then display the other data. */
if (TUI_DATA_WIN->detail.data_display_info.data_content !=
(tui_win_content) NULL
&& TUI_DATA_WIN->detail.data_display_info.data_content_count > 0)
{
}
}
}
/* Function to display the data starting at line, line_no, in the data
window. */
void
tui_display_data_from_line (int line_no)
{
int _line_no = line_no;
if (line_no < 0)
_line_no = 0;
tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
/* There is no general data, force regs to display (if there are
any). */
if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0)
tui_display_registers_from_line (_line_no, TRUE);
else
{
int regs_last_line = tui_last_regs_line_no ();
/* Display regs if we can. */
if (tui_display_registers_from_line (_line_no, FALSE) < 0)
{ /* _line_no is past the regs display, so calc where the
start data element is. */
if (regs_last_line < _line_no)
{ /* Figure out how many lines each element is to obtain
the start element_no. */
}
}
else
{ /* Calculate the starting element of the data display, given
regs_last_line and how many lines each element is, up to
_line_no. */
}
/* Now display the data , starting at element_no. */
}
}
/* Display data starting at element element_no. */
void
tui_display_data_from (int element_no, int reuse_windows)
{
int first_line = (-1);
if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count)
first_line = tui_line_from_reg_element_no (element_no);
else
{ /* Calculate the first_line from the element number. */
}
if (first_line >= 0)
{
tui_erase_data_content ((char *) NULL);
if (!reuse_windows)
tui_delete_data_content_windows ();
tui_display_data_from_line (first_line);
}
}
/* Function to redisplay the contents of the data window. */
void
tui_refresh_data_win (void)
{
tui_erase_data_content ((char *) NULL);
if (TUI_DATA_WIN->generic.content_size > 0)
{
int first_element = tui_first_data_item_displayed ();
if (first_element >= 0) /* Re-use existing windows. */
tui_display_data_from (first_element, TRUE);
}
}
/* Function to check the data values and hilite any that have
changed. */
void
tui_check_data_values (struct frame_info *frame)
{
tui_check_register_values (frame);
/* Now check any other data values that there are. */
if (TUI_DATA_WIN != NULL && TUI_DATA_WIN->generic.is_visible)
{
int i;
for (i = 0;
TUI_DATA_WIN->detail.data_display_info.data_content_count;
i++)
{
#ifdef LATER
tui_data_element_ptr data_element_ptr;
struct tui_gen_win_info *data_item_win_ptr;
Opaque new_value;
data_item_ptr = &TUI_DATA_WIN->detail.data_display_info.
data_content[i]->which_element.data_window;
data_element_ptr = &((tui_win_content)
data_item_win_ptr->content)[0]->which_element.data;
if value
has changed (data_element_ptr, frame, &new_value)
{
data_element_ptr->value = new_value;
update the display with the newobj value, hiliting it.
}
#endif
}
}
}
/* Scroll the data window vertically forward or backward. */
void
tui_vertical_data_scroll (enum tui_scroll_direction scroll_direction,
int num_to_scroll)
{
int first_element_no;
int first_line = (-1);
first_element_no = tui_first_data_item_displayed ();
if (first_element_no
< TUI_DATA_WIN->detail.data_display_info.regs_content_count)
first_line = tui_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)
{
if (scroll_direction == FORWARD_SCROLL)
first_line += num_to_scroll;
else
first_line -= num_to_scroll;
tui_erase_data_content ((char *) NULL);
tui_delete_data_content_windows ();
tui_display_data_from_line (first_line);
}
}
/*****************************************
** STATIC LOCAL FUNCTIONS **
******************************************/
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