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| Current File : //usr/src/contrib/gdb/gdb/tui/tui-windata.c |
/* Data/register window display.
Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "tui/tui.h"
#include "tui/tui-data.h"
#include "tui/tui-wingeneral.h"
#include "tui/tui-regs.h"
#include "gdb_string.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 = (WINDOW *) 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 element_no, start_line_no;
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 new 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)
{
int last_element_no, last_line;
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 **
******************************************/