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binutils-gdb/gdb/tui/tui-win.c

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/* TUI window generic functions.
Copyright (C) 1998-2014 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/>. */
/* This module contains procedures for handling tui window functions
like resize, scrolling, scrolling, changing focus, etc.
Author: Susan B. Macchia */
#include "defs.h"
#include "command.h"
#include "symtab.h"
#include "breakpoint.h"
#include "frame.h"
#include "cli/cli-cmds.h"
#include "top.h"
#include "source.h"
#include "tui/tui.h"
#include "tui/tui-data.h"
#include "tui/tui-wingeneral.h"
#include "tui/tui-stack.h"
#include "tui/tui-regs.h"
#include "tui/tui-disasm.h"
#include "tui/tui-source.h"
#include "tui/tui-winsource.h"
#include "tui/tui-windata.h"
#include "tui/tui-win.h"
#include "gdb_curses.h"
#include <string.h>
#include <ctype.h>
#include "readline/readline.h"
#include <signal.h>
/*******************************
** Static Local Decls
********************************/
static void make_visible_with_new_height (struct tui_win_info *);
static void make_invisible_and_set_new_height (struct tui_win_info *,
int);
static enum tui_status tui_adjust_win_heights (struct tui_win_info *,
int);
static int new_height_ok (struct tui_win_info *, int);
static void tui_set_tab_width_command (char *, int);
static void tui_refresh_all_command (char *, int);
static void tui_set_win_height_command (char *, int);
static void tui_xdb_set_win_height_command (char *, int);
static void tui_all_windows_info (char *, int);
static void tui_set_focus_command (char *, int);
static void tui_scroll_forward_command (char *, int);
static void tui_scroll_backward_command (char *, int);
static void tui_scroll_left_command (char *, int);
static void tui_scroll_right_command (char *, int);
static void parse_scrolling_args (char *,
struct tui_win_info **,
int *);
/***************************************
** DEFINITIONS
***************************************/
#define WIN_HEIGHT_USAGE "Usage: winheight <win_name> [+ | -] <#lines>\n"
#define XDBWIN_HEIGHT_USAGE "Usage: w <#lines>\n"
#define FOCUS_USAGE "Usage: focus {<win> | next | prev}\n"
/***************************************
** PUBLIC FUNCTIONS
***************************************/
#ifndef ACS_LRCORNER
# define ACS_LRCORNER '+'
#endif
#ifndef ACS_LLCORNER
# define ACS_LLCORNER '+'
#endif
#ifndef ACS_ULCORNER
# define ACS_ULCORNER '+'
#endif
#ifndef ACS_URCORNER
# define ACS_URCORNER '+'
#endif
#ifndef ACS_HLINE
# define ACS_HLINE '-'
#endif
#ifndef ACS_VLINE
# define ACS_VLINE '|'
#endif
/* Possible values for tui-border-kind variable. */
static const char *const tui_border_kind_enums[] = {
"space",
"ascii",
"acs",
NULL
};
/* Possible values for tui-border-mode and tui-active-border-mode. */
static const char *const tui_border_mode_enums[] = {
"normal",
"standout",
"reverse",
"half",
"half-standout",
"bold",
"bold-standout",
NULL
};
struct tui_translate
{
const char *name;
int value;
};
/* Translation table for border-mode variables.
The list of values must be terminated by a NULL.
After the NULL value, an entry defines the default. */
struct tui_translate tui_border_mode_translate[] = {
{ "normal", A_NORMAL },
{ "standout", A_STANDOUT },
{ "reverse", A_REVERSE },
{ "half", A_DIM },
{ "half-standout", A_DIM | A_STANDOUT },
{ "bold", A_BOLD },
{ "bold-standout", A_BOLD | A_STANDOUT },
{ 0, 0 },
{ "normal", A_NORMAL }
};
/* Translation tables for border-kind, one for each border
character (see wborder, border curses operations).
-1 is used to indicate the ACS because ACS characters
are determined at run time by curses (depends on terminal). */
struct tui_translate tui_border_kind_translate_vline[] = {
{ "space", ' ' },
{ "ascii", '|' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '|' }
};
struct tui_translate tui_border_kind_translate_hline[] = {
{ "space", ' ' },
{ "ascii", '-' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '-' }
};
struct tui_translate tui_border_kind_translate_ulcorner[] = {
{ "space", ' ' },
{ "ascii", '+' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '+' }
};
struct tui_translate tui_border_kind_translate_urcorner[] = {
{ "space", ' ' },
{ "ascii", '+' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '+' }
};
struct tui_translate tui_border_kind_translate_llcorner[] = {
{ "space", ' ' },
{ "ascii", '+' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '+' }
};
struct tui_translate tui_border_kind_translate_lrcorner[] = {
{ "space", ' ' },
{ "ascii", '+' },
{ "acs", -1 },
{ 0, 0 },
{ "ascii", '+' }
};
/* Tui configuration variables controlled with set/show command. */
const char *tui_active_border_mode = "bold-standout";
static void
show_tui_active_border_mode (struct ui_file *file,
int from_tty,
struct cmd_list_element *c,
const char *value)
{
fprintf_filtered (file, _("\
The attribute mode to use for the active TUI window border is \"%s\".\n"),
value);
}
const char *tui_border_mode = "normal";
static void
show_tui_border_mode (struct ui_file *file,
int from_tty,
struct cmd_list_element *c,
const char *value)
{
fprintf_filtered (file, _("\
The attribute mode to use for the TUI window borders is \"%s\".\n"),
value);
}
const char *tui_border_kind = "acs";
static void
show_tui_border_kind (struct ui_file *file,
int from_tty,
struct cmd_list_element *c,
const char *value)
{
fprintf_filtered (file, _("The kind of border for TUI windows is \"%s\".\n"),
value);
}
/* Tui internal configuration variables. These variables are updated
by tui_update_variables to reflect the tui configuration
variables. */
chtype tui_border_vline;
chtype tui_border_hline;
chtype tui_border_ulcorner;
chtype tui_border_urcorner;
chtype tui_border_llcorner;
chtype tui_border_lrcorner;
int tui_border_attrs;
int tui_active_border_attrs;
/* Identify the item in the translation table.
When the item is not recognized, use the default entry. */
static struct tui_translate *
translate (const char *name, struct tui_translate *table)
{
while (table->name)
{
if (name && strcmp (table->name, name) == 0)
return table;
table++;
}
/* Not found, return default entry. */
table++;
return table;
}
/* Update the tui internal configuration according to gdb settings.
Returns 1 if the configuration has changed and the screen should
be redrawn. */
int
tui_update_variables (void)
{
int need_redraw = 0;
struct tui_translate *entry;
entry = translate (tui_border_mode, tui_border_mode_translate);
if (tui_border_attrs != entry->value)
{
tui_border_attrs = entry->value;
need_redraw = 1;
}
entry = translate (tui_active_border_mode, tui_border_mode_translate);
if (tui_active_border_attrs != entry->value)
{
tui_active_border_attrs = entry->value;
need_redraw = 1;
}
/* If one corner changes, all characters are changed.
Only check the first one. The ACS characters are determined at
run time by curses terminal management. */
entry = translate (tui_border_kind, tui_border_kind_translate_lrcorner);
if (tui_border_lrcorner != (chtype) entry->value)
{
tui_border_lrcorner = (entry->value < 0) ? ACS_LRCORNER : entry->value;
need_redraw = 1;
}
entry = translate (tui_border_kind, tui_border_kind_translate_llcorner);
tui_border_llcorner = (entry->value < 0) ? ACS_LLCORNER : entry->value;
entry = translate (tui_border_kind, tui_border_kind_translate_ulcorner);
tui_border_ulcorner = (entry->value < 0) ? ACS_ULCORNER : entry->value;
entry = translate (tui_border_kind, tui_border_kind_translate_urcorner);
tui_border_urcorner = (entry->value < 0) ? ACS_URCORNER : entry->value;
entry = translate (tui_border_kind, tui_border_kind_translate_hline);
tui_border_hline = (entry->value < 0) ? ACS_HLINE : entry->value;
entry = translate (tui_border_kind, tui_border_kind_translate_vline);
tui_border_vline = (entry->value < 0) ? ACS_VLINE : entry->value;
return need_redraw;
}
static void
set_tui_cmd (char *args, int from_tty)
{
}
static void
show_tui_cmd (char *args, int from_tty)
{
}
static struct cmd_list_element *tuilist;
static void
tui_command (char *args, int from_tty)
{
printf_unfiltered (_("\"tui\" must be followed by the name of a "
"tui command.\n"));
help_list (tuilist, "tui ", -1, gdb_stdout);
}
struct cmd_list_element **
tui_get_cmd_list (void)
{
if (tuilist == 0)
add_prefix_cmd ("tui", class_tui, tui_command,
_("Text User Interface commands."),
&tuilist, "tui ", 0, &cmdlist);
return &tuilist;
}
/* Function to initialize gdb commands, for tui window
manipulation. */
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_tui_win;
void
_initialize_tui_win (void)
{
static struct cmd_list_element *tui_setlist;
static struct cmd_list_element *tui_showlist;
/* Define the classes of commands.
They will appear in the help list in the reverse of this order. */
add_prefix_cmd ("tui", class_tui, set_tui_cmd,
_("TUI configuration variables"),
&tui_setlist, "set tui ",
0 /* allow-unknown */, &setlist);
add_prefix_cmd ("tui", class_tui, show_tui_cmd,
_("TUI configuration variables"),
&tui_showlist, "show tui ",
0 /* allow-unknown */, &showlist);
add_com ("refresh", class_tui, tui_refresh_all_command,
_("Refresh the terminal display.\n"));
if (xdb_commands)
add_com_alias ("U", "refresh", class_tui, 0);
add_com ("tabset", class_tui, tui_set_tab_width_command, _("\
Set the width (in characters) of tab stops.\n\
Usage: tabset <n>\n"));
add_com ("winheight", class_tui, tui_set_win_height_command, _("\
Set the height of a specified window.\n\
Usage: winheight <win_name> [+ | -] <#lines>\n\
Window names are:\n\
src : the source window\n\
cmd : the command window\n\
asm : the disassembly window\n\
regs : the register display\n"));
add_com_alias ("wh", "winheight", class_tui, 0);
add_info ("win", tui_all_windows_info,
_("List of all displayed windows.\n"));
add_com ("focus", class_tui, tui_set_focus_command, _("\
Set focus to named window or next/prev window.\n\
Usage: focus {<win> | next | prev}\n\
Valid Window names are:\n\
src : the source window\n\
asm : the disassembly window\n\
regs : the register display\n\
cmd : the command window\n"));
add_com_alias ("fs", "focus", class_tui, 0);
add_com ("+", class_tui, tui_scroll_forward_command, _("\
Scroll window forward.\n\
Usage: + [win] [n]\n"));
add_com ("-", class_tui, tui_scroll_backward_command, _("\
Scroll window backward.\n\
Usage: - [win] [n]\n"));
add_com ("<", class_tui, tui_scroll_left_command, _("\
Scroll window forward.\n\
Usage: < [win] [n]\n"));
add_com (">", class_tui, tui_scroll_right_command, _("\
Scroll window backward.\n\
Usage: > [win] [n]\n"));
if (xdb_commands)
add_com ("w", class_xdb, tui_xdb_set_win_height_command, _("\
XDB compatibility command for setting the height of a command window.\n\
Usage: w <#lines>\n"));
/* Define the tui control variables. */
add_setshow_enum_cmd ("border-kind", no_class, tui_border_kind_enums,
&tui_border_kind, _("\
Set the kind of border for TUI windows."), _("\
Show the kind of border for TUI windows."), _("\
This variable controls the border of TUI windows:\n\
space use a white space\n\
ascii use ascii characters + - | for the border\n\
acs use the Alternate Character Set"),
NULL,
show_tui_border_kind,
&tui_setlist, &tui_showlist);
add_setshow_enum_cmd ("border-mode", no_class, tui_border_mode_enums,
&tui_border_mode, _("\
Set the attribute mode to use for the TUI window borders."), _("\
Show the attribute mode to use for the TUI window borders."), _("\
This variable controls the attributes to use for the window borders:\n\
normal normal display\n\
standout use highlight mode of terminal\n\
reverse use reverse video mode\n\
half use half bright\n\
half-standout use half bright and standout mode\n\
bold use extra bright or bold\n\
bold-standout use extra bright or bold with standout mode"),
NULL,
show_tui_border_mode,
&tui_setlist, &tui_showlist);
add_setshow_enum_cmd ("active-border-mode", no_class, tui_border_mode_enums,
&tui_active_border_mode, _("\
Set the attribute mode to use for the active TUI window border."), _("\
Show the attribute mode to use for the active TUI window border."), _("\
This variable controls the attributes to use for the active window border:\n\
normal normal display\n\
standout use highlight mode of terminal\n\
reverse use reverse video mode\n\
half use half bright\n\
half-standout use half bright and standout mode\n\
bold use extra bright or bold\n\
bold-standout use extra bright or bold with standout mode"),
NULL,
show_tui_active_border_mode,
&tui_setlist, &tui_showlist);
}
/* Update gdb's knowledge of the terminal size. */
void
tui_update_gdb_sizes (void)
{
char cmd[50];
/* Set to TUI command window dimension or use readline values. */
xsnprintf (cmd, sizeof (cmd), "set width %d",
tui_active ? TUI_CMD_WIN->generic.width : tui_term_width());
execute_command (cmd, 0);
xsnprintf (cmd, sizeof (cmd), "set height %d",
tui_active ? TUI_CMD_WIN->generic.height : tui_term_height());
execute_command (cmd, 0);
}
/* Set the logical focus to win_info. */
void
tui_set_win_focus_to (struct tui_win_info *win_info)
{
if (win_info != NULL)
{
struct tui_win_info *win_with_focus = tui_win_with_focus ();
if (win_with_focus != NULL
&& win_with_focus->generic.type != CMD_WIN)
tui_unhighlight_win (win_with_focus);
tui_set_win_with_focus (win_info);
if (win_info->generic.type != CMD_WIN)
tui_highlight_win (win_info);
}
}
void
tui_scroll_forward (struct tui_win_info *win_to_scroll,
int num_to_scroll)
{
if (win_to_scroll != TUI_CMD_WIN)
{
int _num_to_scroll = num_to_scroll;
if (num_to_scroll == 0)
_num_to_scroll = win_to_scroll->generic.height - 3;
/* If we are scrolling the source or disassembly window, do a
"psuedo" scroll since not all of the source is in memory,
only what is in the viewport. If win_to_scroll is the
command window do nothing since the term should handle
it. */
if (win_to_scroll == TUI_SRC_WIN)
tui_vertical_source_scroll (FORWARD_SCROLL, _num_to_scroll);
else if (win_to_scroll == TUI_DISASM_WIN)
tui_vertical_disassem_scroll (FORWARD_SCROLL, _num_to_scroll);
else if (win_to_scroll == TUI_DATA_WIN)
tui_vertical_data_scroll (FORWARD_SCROLL, _num_to_scroll);
}
}
void
tui_scroll_backward (struct tui_win_info *win_to_scroll,
int num_to_scroll)
{
if (win_to_scroll != TUI_CMD_WIN)
{
int _num_to_scroll = num_to_scroll;
if (num_to_scroll == 0)
_num_to_scroll = win_to_scroll->generic.height - 3;
/* If we are scrolling the source or disassembly window, do a
"psuedo" scroll since not all of the source is in memory,
only what is in the viewport. If win_to_scroll is the
command window do nothing since the term should handle
it. */
if (win_to_scroll == TUI_SRC_WIN)
tui_vertical_source_scroll (BACKWARD_SCROLL, _num_to_scroll);
else if (win_to_scroll == TUI_DISASM_WIN)
tui_vertical_disassem_scroll (BACKWARD_SCROLL, _num_to_scroll);
else if (win_to_scroll == TUI_DATA_WIN)
tui_vertical_data_scroll (BACKWARD_SCROLL, _num_to_scroll);
}
}
void
tui_scroll_left (struct tui_win_info *win_to_scroll,
int num_to_scroll)
{
if (win_to_scroll != TUI_CMD_WIN)
{
int _num_to_scroll = num_to_scroll;
if (_num_to_scroll == 0)
_num_to_scroll = 1;
/* If we are scrolling the source or disassembly window, do a
"psuedo" scroll since not all of the source is in memory,
only what is in the viewport. If win_to_scroll is the command
window do nothing since the term should handle it. */
if (win_to_scroll == TUI_SRC_WIN
|| win_to_scroll == TUI_DISASM_WIN)
tui_horizontal_source_scroll (win_to_scroll, LEFT_SCROLL,
_num_to_scroll);
}
}
void
tui_scroll_right (struct tui_win_info *win_to_scroll,
int num_to_scroll)
{
if (win_to_scroll != TUI_CMD_WIN)
{
int _num_to_scroll = num_to_scroll;
if (_num_to_scroll == 0)
_num_to_scroll = 1;
/* If we are scrolling the source or disassembly window, do a
"psuedo" scroll since not all of the source is in memory,
only what is in the viewport. If win_to_scroll is the command
window do nothing since the term should handle it. */
if (win_to_scroll == TUI_SRC_WIN
|| win_to_scroll == TUI_DISASM_WIN)
tui_horizontal_source_scroll (win_to_scroll, RIGHT_SCROLL,
_num_to_scroll);
}
}
/* Scroll a window. Arguments are passed through a va_list. */
void
tui_scroll (enum tui_scroll_direction direction,
struct tui_win_info *win_to_scroll,
int num_to_scroll)
{
switch (direction)
{
case FORWARD_SCROLL:
tui_scroll_forward (win_to_scroll, num_to_scroll);
break;
case BACKWARD_SCROLL:
tui_scroll_backward (win_to_scroll, num_to_scroll);
break;
case LEFT_SCROLL:
tui_scroll_left (win_to_scroll, num_to_scroll);
break;
case RIGHT_SCROLL:
tui_scroll_right (win_to_scroll, num_to_scroll);
break;
default:
break;
}
}
void
tui_refresh_all_win (void)
{
enum tui_win_type type;
clearok (curscr, TRUE);
tui_refresh_all (tui_win_list);
for (type = SRC_WIN; type < MAX_MAJOR_WINDOWS; type++)
{
if (tui_win_list[type]
&& tui_win_list[type]->generic.is_visible)
{
switch (type)
{
case SRC_WIN:
case DISASSEM_WIN:
tui_show_source_content (tui_win_list[type]);
tui_check_and_display_highlight_if_needed (tui_win_list[type]);
tui_erase_exec_info_content (tui_win_list[type]);
tui_update_exec_info (tui_win_list[type]);
break;
case DATA_WIN:
tui_refresh_data_win ();
break;
default:
break;
}
}
}
tui_show_locator_content ();
}
/* Resize all the windows based on the terminal size. This function
gets called from within the readline sinwinch handler. */
void
tui_resize_all (void)
{
int height_diff, width_diff;
int screenheight, screenwidth;
rl_get_screen_size (&screenheight, &screenwidth);
width_diff = screenwidth - tui_term_width ();
height_diff = screenheight - tui_term_height ();
if (height_diff || width_diff)
{
enum tui_layout_type cur_layout = tui_current_layout ();
struct tui_win_info *win_with_focus = tui_win_with_focus ();
struct tui_win_info *first_win;
struct tui_win_info *second_win;
struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
enum tui_win_type win_type;
int new_height, split_diff, cmd_split_diff, num_wins_displayed = 2;
#ifdef HAVE_RESIZE_TERM
resize_term (screenheight, screenwidth);
#endif
/* Turn keypad off while we resize. */
if (win_with_focus != TUI_CMD_WIN)
keypad (TUI_CMD_WIN->generic.handle, FALSE);
tui_update_gdb_sizes ();
tui_set_term_height_to (screenheight);
tui_set_term_width_to (screenwidth);
if (cur_layout == SRC_DISASSEM_COMMAND
|| cur_layout == SRC_DATA_COMMAND
|| cur_layout == DISASSEM_DATA_COMMAND)
num_wins_displayed++;
split_diff = height_diff / num_wins_displayed;
cmd_split_diff = split_diff;
if (height_diff % num_wins_displayed)
{
if (height_diff < 0)
cmd_split_diff--;
else
cmd_split_diff++;
}
/* Now adjust each window. */
/* erase + clearok are used instead of a straightforward clear as
AIX 5.3 does not define clear. */
erase ();
clearok (curscr, TRUE);
refresh ();
switch (cur_layout)
{
case SRC_COMMAND:
case DISASSEM_COMMAND:
first_win = (struct tui_win_info *) (tui_source_windows ())->list[0];
first_win->generic.width += width_diff;
locator->width += width_diff;
/* Check for invalid heights. */
if (height_diff == 0)
new_height = first_win->generic.height;
else if ((first_win->generic.height + split_diff) >=
(screenheight - MIN_CMD_WIN_HEIGHT - 1))
new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1;
else if ((first_win->generic.height + split_diff) <= 0)
new_height = MIN_WIN_HEIGHT;
else
new_height = first_win->generic.height + split_diff;
locator->origin.y = new_height + 1;
make_invisible_and_set_new_height (first_win, new_height);
TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
TUI_CMD_WIN->generic.width += width_diff;
new_height = screenheight - TUI_CMD_WIN->generic.origin.y;
make_invisible_and_set_new_height (TUI_CMD_WIN, new_height);
make_visible_with_new_height (first_win);
make_visible_with_new_height (TUI_CMD_WIN);
if (first_win->generic.content_size <= 0)
tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
break;
default:
if (cur_layout == SRC_DISASSEM_COMMAND)
{
first_win = TUI_SRC_WIN;
first_win->generic.width += width_diff;
second_win = TUI_DISASM_WIN;
second_win->generic.width += width_diff;
}
else
{
first_win = TUI_DATA_WIN;
first_win->generic.width += width_diff;
second_win = (struct tui_win_info *)
(tui_source_windows ())->list[0];
second_win->generic.width += width_diff;
}
/* Change the first window's height/width. */
/* Check for invalid heights. */
if (height_diff == 0)
new_height = first_win->generic.height;
else if ((first_win->generic.height +
second_win->generic.height + (split_diff * 2)) >=
(screenheight - MIN_CMD_WIN_HEIGHT - 1))
new_height = (screenheight - MIN_CMD_WIN_HEIGHT - 1) / 2;
else if ((first_win->generic.height + split_diff) <= 0)
new_height = MIN_WIN_HEIGHT;
else
new_height = first_win->generic.height + split_diff;
make_invisible_and_set_new_height (first_win, new_height);
locator->width += width_diff;
/* Change the second window's height/width. */
/* Check for invalid heights. */
if (height_diff == 0)
new_height = second_win->generic.height;
else if ((first_win->generic.height +
second_win->generic.height + (split_diff * 2)) >=
(screenheight - MIN_CMD_WIN_HEIGHT - 1))
{
new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1;
if (new_height % 2)
new_height = (new_height / 2) + 1;
else
new_height /= 2;
}
else if ((second_win->generic.height + split_diff) <= 0)
new_height = MIN_WIN_HEIGHT;
else
new_height = second_win->generic.height + split_diff;
second_win->generic.origin.y = first_win->generic.height - 1;
make_invisible_and_set_new_height (second_win, new_height);
/* Change the command window's height/width. */
TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
make_invisible_and_set_new_height (TUI_CMD_WIN,
TUI_CMD_WIN->generic.height
+ cmd_split_diff);
make_visible_with_new_height (first_win);
make_visible_with_new_height (second_win);
make_visible_with_new_height (TUI_CMD_WIN);
if (first_win->generic.content_size <= 0)
tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
if (second_win->generic.content_size <= 0)
tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT);
break;
}
/* Now remove all invisible windows, and their content so that
they get created again when called for with the new size. */
for (win_type = SRC_WIN; (win_type < MAX_MAJOR_WINDOWS); win_type++)
{
if (win_type != CMD_WIN
&& (tui_win_list[win_type] != NULL)
&& !tui_win_list[win_type]->generic.is_visible)
{
tui_free_window (tui_win_list[win_type]);
tui_win_list[win_type] = (struct tui_win_info *) NULL;
}
}
/* Turn keypad back on, unless focus is in the command
window. */
if (win_with_focus != TUI_CMD_WIN)
keypad (TUI_CMD_WIN->generic.handle, TRUE);
}
}
#ifdef SIGWINCH
/* SIGWINCH signal handler for the tui. This signal handler is always
called, even when the readline package clears signals because it is
set as the old_sigwinch() (TUI only). */
static void
tui_sigwinch_handler (int signal)
{
/* Say that a resize was done so that the readline can do it later
when appropriate. */
tui_set_win_resized_to (TRUE);
}
#endif
/* Initializes SIGWINCH signal handler for the tui. */
void
tui_initialize_win (void)
{
#ifdef SIGWINCH
#ifdef HAVE_SIGACTION
struct sigaction old_winch;
memset (&old_winch, 0, sizeof (old_winch));
old_winch.sa_handler = &tui_sigwinch_handler;
sigaction (SIGWINCH, &old_winch, NULL);
#else
signal (SIGWINCH, &tui_sigwinch_handler);
#endif
#endif
}
/*************************
** STATIC LOCAL FUNCTIONS
**************************/
static void
tui_scroll_forward_command (char *arg, int from_tty)
{
int num_to_scroll = 1;
struct tui_win_info *win_to_scroll;
/* Make sure the curses mode is enabled. */
tui_enable ();
if (arg == (char *) NULL)
parse_scrolling_args (arg, &win_to_scroll, (int *) NULL);
else
parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
tui_scroll (FORWARD_SCROLL, win_to_scroll, num_to_scroll);
}
static void
tui_scroll_backward_command (char *arg, int from_tty)
{
int num_to_scroll = 1;
struct tui_win_info *win_to_scroll;
/* Make sure the curses mode is enabled. */
tui_enable ();
if (arg == (char *) NULL)
parse_scrolling_args (arg, &win_to_scroll, (int *) NULL);
else
parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
tui_scroll (BACKWARD_SCROLL, win_to_scroll, num_to_scroll);
}
static void
tui_scroll_left_command (char *arg, int from_tty)
{
int num_to_scroll;
struct tui_win_info *win_to_scroll;
/* Make sure the curses mode is enabled. */
tui_enable ();
parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
tui_scroll (LEFT_SCROLL, win_to_scroll, num_to_scroll);
}
static void
tui_scroll_right_command (char *arg, int from_tty)
{
int num_to_scroll;
struct tui_win_info *win_to_scroll;
/* Make sure the curses mode is enabled. */
tui_enable ();
parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
tui_scroll (RIGHT_SCROLL, win_to_scroll, num_to_scroll);
}
/* Set focus to the window named by 'arg'. */
static void
tui_set_focus (char *arg, int from_tty)
{
if (arg != (char *) NULL)
{
char *buf_ptr = (char *) xstrdup (arg);
int i;
struct tui_win_info *win_info = (struct tui_win_info *) NULL;
for (i = 0; (i < strlen (buf_ptr)); i++)
buf_ptr[i] = toupper (arg[i]);
if (subset_compare (buf_ptr, "NEXT"))
win_info = tui_next_win (tui_win_with_focus ());
else if (subset_compare (buf_ptr, "PREV"))
win_info = tui_prev_win (tui_win_with_focus ());
else
win_info = tui_partial_win_by_name (buf_ptr);
if (win_info == (struct tui_win_info *) NULL
|| !win_info->generic.is_visible)
warning (_("Invalid window specified. \n\
The window name specified must be valid and visible.\n"));
else
{
tui_set_win_focus_to (win_info);
keypad (TUI_CMD_WIN->generic.handle, (win_info != TUI_CMD_WIN));
}
if (TUI_DATA_WIN && TUI_DATA_WIN->generic.is_visible)
tui_refresh_data_win ();
xfree (buf_ptr);
printf_filtered (_("Focus set to %s window.\n"),
tui_win_name ((struct tui_gen_win_info *)
tui_win_with_focus ()));
}
else
warning (_("Incorrect Number of Arguments.\n%s"), FOCUS_USAGE);
}
static void
tui_set_focus_command (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
tui_set_focus (arg, from_tty);
}
static void
tui_all_windows_info (char *arg, int from_tty)
{
enum tui_win_type type;
struct tui_win_info *win_with_focus = tui_win_with_focus ();
for (type = SRC_WIN; (type < MAX_MAJOR_WINDOWS); type++)
if (tui_win_list[type]
&& tui_win_list[type]->generic.is_visible)
{
if (win_with_focus == tui_win_list[type])
printf_filtered (" %s\t(%d lines) <has focus>\n",
tui_win_name (&tui_win_list[type]->generic),
tui_win_list[type]->generic.height);
else
printf_filtered (" %s\t(%d lines)\n",
tui_win_name (&tui_win_list[type]->generic),
tui_win_list[type]->generic.height);
}
}
static void
tui_refresh_all_command (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
tui_refresh_all_win ();
}
/* Set the height of the specified window. */
static void
tui_set_tab_width_command (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
if (arg != (char *) NULL)
{
int ts;
ts = atoi (arg);
if (ts > 0)
tui_set_default_tab_len (ts);
else
warning (_("Tab widths greater than 0 must be specified."));
}
}
/* Set the height of the specified window. */
static void
tui_set_win_height (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
if (arg != (char *) NULL)
{
char *buf = xstrdup (arg);
char *buf_ptr = buf;
char *wname = (char *) NULL;
int new_height, i;
struct tui_win_info *win_info;
wname = buf_ptr;
buf_ptr = strchr (buf_ptr, ' ');
if (buf_ptr != (char *) NULL)
{
*buf_ptr = (char) 0;
/* Validate the window name. */
for (i = 0; i < strlen (wname); i++)
wname[i] = toupper (wname[i]);
win_info = tui_partial_win_by_name (wname);
if (win_info == (struct tui_win_info *) NULL
|| !win_info->generic.is_visible)
warning (_("Invalid window specified. \n\
The window name specified must be valid and visible.\n"));
else
{
/* Process the size. */
while (*(++buf_ptr) == ' ')
;
if (*buf_ptr != (char) 0)
{
int negate = FALSE;
int fixed_size = TRUE;
int input_no;;
if (*buf_ptr == '+' || *buf_ptr == '-')
{
if (*buf_ptr == '-')
negate = TRUE;
fixed_size = FALSE;
buf_ptr++;
}
input_no = atoi (buf_ptr);
if (input_no > 0)
{
if (negate)
input_no *= (-1);
if (fixed_size)
new_height = input_no;
else
new_height = win_info->generic.height + input_no;
/* Now change the window's height, and adjust
all other windows around it. */
if (tui_adjust_win_heights (win_info,
new_height) == TUI_FAILURE)
warning (_("Invalid window height specified.\n%s"),
WIN_HEIGHT_USAGE);
else
tui_update_gdb_sizes ();
}
else
warning (_("Invalid window height specified.\n%s"),
WIN_HEIGHT_USAGE);
}
}
}
else
printf_filtered (WIN_HEIGHT_USAGE);
if (buf != (char *) NULL)
xfree (buf);
}
else
printf_filtered (WIN_HEIGHT_USAGE);
}
/* Set the height of the specified window, with va_list. */
static void
tui_set_win_height_command (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
tui_set_win_height (arg, from_tty);
}
/* XDB Compatibility command for setting the window height. This will
increase or decrease the command window by the specified
amount. */
static void
tui_xdb_set_win_height (char *arg, int from_tty)
{
/* Make sure the curses mode is enabled. */
tui_enable ();
if (arg != (char *) NULL)
{
int input_no = atoi (arg);
if (input_no > 0)
{ /* Add 1 for the locator. */
int new_height = tui_term_height () - (input_no + 1);
if (!new_height_ok (tui_win_list[CMD_WIN], new_height)
|| tui_adjust_win_heights (tui_win_list[CMD_WIN],
new_height) == TUI_FAILURE)
warning (_("Invalid window height specified.\n%s"),
XDBWIN_HEIGHT_USAGE);
}
else
warning (_("Invalid window height specified.\n%s"),
XDBWIN_HEIGHT_USAGE);
}
else
warning (_("Invalid window height specified.\n%s"), XDBWIN_HEIGHT_USAGE);
}
/* Set the height of the specified window, with va_list. */
static void
tui_xdb_set_win_height_command (char *arg, int from_tty)
{
tui_xdb_set_win_height (arg, from_tty);
}
/* Function to adjust all window heights around the primary. */
static enum tui_status
tui_adjust_win_heights (struct tui_win_info *primary_win_info,
int new_height)
{
enum tui_status status = TUI_FAILURE;
if (new_height_ok (primary_win_info, new_height))
{
status = TUI_SUCCESS;
if (new_height != primary_win_info->generic.height)
{
int diff;
struct tui_win_info *win_info;
struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
enum tui_layout_type cur_layout = tui_current_layout ();
diff = (new_height - primary_win_info->generic.height) * (-1);
if (cur_layout == SRC_COMMAND
|| cur_layout == DISASSEM_COMMAND)
{
struct tui_win_info *src_win_info;
make_invisible_and_set_new_height (primary_win_info, new_height);
if (primary_win_info->generic.type == CMD_WIN)
{
win_info = (tui_source_windows ())->list[0];
src_win_info = win_info;
}
else
{
win_info = tui_win_list[CMD_WIN];
src_win_info = primary_win_info;
}
make_invisible_and_set_new_height (win_info,
win_info->generic.height + diff);
TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
make_visible_with_new_height (win_info);
make_visible_with_new_height (primary_win_info);
if (src_win_info->generic.content_size <= 0)
tui_erase_source_content (src_win_info, EMPTY_SOURCE_PROMPT);
}
else
{
struct tui_win_info *first_win;
struct tui_win_info *second_win;
if (cur_layout == SRC_DISASSEM_COMMAND)
{
first_win = TUI_SRC_WIN;
second_win = TUI_DISASM_WIN;
}
else
{
first_win = TUI_DATA_WIN;
second_win = (tui_source_windows ())->list[0];
}
if (primary_win_info == TUI_CMD_WIN)
{ /* Split the change in height accross the 1st & 2nd
windows, adjusting them as well. */
/* Subtract the locator. */
int first_split_diff = diff / 2;
int second_split_diff = first_split_diff;
if (diff % 2)
{
if (first_win->generic.height >
second_win->generic.height)
if (diff < 0)
first_split_diff--;
else
first_split_diff++;
else
{
if (diff < 0)
second_split_diff--;
else
second_split_diff++;
}
}
/* Make sure that the minimum hieghts are
honored. */
while ((first_win->generic.height + first_split_diff) < 3)
{
first_split_diff++;
second_split_diff--;
}
while ((second_win->generic.height + second_split_diff) < 3)
{
second_split_diff++;
first_split_diff--;
}
make_invisible_and_set_new_height (
first_win,
first_win->generic.height + first_split_diff);
second_win->generic.origin.y = first_win->generic.height - 1;
make_invisible_and_set_new_height (second_win,
second_win->generic.height
+ second_split_diff);
TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
make_invisible_and_set_new_height (TUI_CMD_WIN, new_height);
}
else
{
if ((TUI_CMD_WIN->generic.height + diff) < 1)
{ /* If there is no way to increase the command
window take real estate from the 1st or 2nd
window. */
if ((TUI_CMD_WIN->generic.height + diff) < 1)
{
int i;
for (i = TUI_CMD_WIN->generic.height + diff;
(i < 1); i++)
if (primary_win_info == first_win)
second_win->generic.height--;
else
first_win->generic.height--;
}
}
if (primary_win_info == first_win)
make_invisible_and_set_new_height (first_win, new_height);
else
make_invisible_and_set_new_height (
first_win,
first_win->generic.height);
second_win->generic.origin.y = first_win->generic.height - 1;
if (primary_win_info == second_win)
make_invisible_and_set_new_height (second_win, new_height);
else
make_invisible_and_set_new_height (
second_win, second_win->generic.height);
TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
if ((TUI_CMD_WIN->generic.height + diff) < 1)
make_invisible_and_set_new_height (TUI_CMD_WIN, 1);
else
make_invisible_and_set_new_height (TUI_CMD_WIN,
TUI_CMD_WIN->generic.height + diff);
}
make_visible_with_new_height (TUI_CMD_WIN);
make_visible_with_new_height (second_win);
make_visible_with_new_height (first_win);
if (first_win->generic.content_size <= 0)
tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
if (second_win->generic.content_size <= 0)
tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT);
}
}
}
return status;
}
/* Function make the target window (and auxillary windows associated
with the targer) invisible, and set the new height and
location. */
static void
make_invisible_and_set_new_height (struct tui_win_info *win_info,
int height)
{
int i;
struct tui_gen_win_info *gen_win_info;
tui_make_invisible (&win_info->generic);
win_info->generic.height = height;
if (height > 1)
win_info->generic.viewport_height = height - 1;
else
win_info->generic.viewport_height = height;
if (win_info != TUI_CMD_WIN)
win_info->generic.viewport_height--;
/* Now deal with the auxillary windows associated with win_info. */
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
gen_win_info = win_info->detail.source_info.execution_info;
tui_make_invisible (gen_win_info);
gen_win_info->height = height;
gen_win_info->origin.y = win_info->generic.origin.y;
if (height > 1)
gen_win_info->viewport_height = height - 1;
else
gen_win_info->viewport_height = height;
if (win_info != TUI_CMD_WIN)
gen_win_info->viewport_height--;
if (tui_win_has_locator (win_info))
{
gen_win_info = tui_locator_win_info_ptr ();
tui_make_invisible (gen_win_info);
gen_win_info->origin.y = win_info->generic.origin.y + height;
}
break;
case DATA_WIN:
/* Delete all data item windows. */
for (i = 0; i < win_info->generic.content_size; i++)
{
gen_win_info = (struct tui_gen_win_info *)
&((struct tui_win_element *)
win_info->generic.content[i])->which_element.data_window;
tui_delete_win (gen_win_info->handle);
gen_win_info->handle = (WINDOW *) NULL;
}
break;
default:
break;
}
}
/* Function to make the windows with new heights visible. This means
re-creating the windows' content since the window had to be
destroyed to be made invisible. */
static void
make_visible_with_new_height (struct tui_win_info *win_info)
{
struct symtab *s;
tui_make_visible (&win_info->generic);
tui_check_and_display_highlight_if_needed (win_info);
switch (win_info->generic.type)
{
case SRC_WIN:
case DISASSEM_WIN:
tui_free_win_content (win_info->detail.source_info.execution_info);
tui_make_visible (win_info->detail.source_info.execution_info);
if (win_info->generic.content != NULL)
{
struct gdbarch *gdbarch = win_info->detail.source_info.gdbarch;
struct tui_line_or_address line_or_addr;
struct symtab_and_line cursal
= get_current_source_symtab_and_line ();
line_or_addr = win_info->detail.source_info.start_line_or_addr;
tui_free_win_content (&win_info->generic);
tui_update_source_window (win_info, gdbarch,
cursal.symtab, line_or_addr, TRUE);
}
else if (deprecated_safe_get_selected_frame () != NULL)
{
struct tui_line_or_address line;
struct symtab_and_line cursal
= get_current_source_symtab_and_line ();
struct frame_info *frame = deprecated_safe_get_selected_frame ();
struct gdbarch *gdbarch = get_frame_arch (frame);
s = find_pc_symtab (get_frame_pc (frame));
if (win_info->generic.type == SRC_WIN)
{
line.loa = LOA_LINE;
line.u.line_no = cursal.line;
}
else
{
line.loa = LOA_ADDRESS;
find_line_pc (s, cursal.line, &line.u.addr);
}
tui_update_source_window (win_info, gdbarch, s, line, TRUE);
}
if (tui_win_has_locator (win_info))
{
tui_make_visible (tui_locator_win_info_ptr ());
tui_show_locator_content ();
}
break;
case DATA_WIN:
tui_display_all_data ();
break;
case CMD_WIN:
win_info->detail.command_info.cur_line = 0;
win_info->detail.command_info.curch = 0;
#ifdef HAVE_WRESIZE
wresize (TUI_CMD_WIN->generic.handle,
TUI_CMD_WIN->generic.height,
TUI_CMD_WIN->generic.width);
#endif
mvwin (TUI_CMD_WIN->generic.handle,
TUI_CMD_WIN->generic.origin.y,
TUI_CMD_WIN->generic.origin.x);
wmove (win_info->generic.handle,
win_info->detail.command_info.cur_line,
win_info->detail.command_info.curch);
break;
default:
break;
}
}
static int
new_height_ok (struct tui_win_info *primary_win_info,
int new_height)
{
int ok = (new_height < tui_term_height ());
if (ok)
{
int diff;
enum tui_layout_type cur_layout = tui_current_layout ();
diff = (new_height - primary_win_info->generic.height) * (-1);
if (cur_layout == SRC_COMMAND || cur_layout == DISASSEM_COMMAND)
{
ok = ((primary_win_info->generic.type == CMD_WIN
&& new_height <= (tui_term_height () - 4)
&& new_height >= MIN_CMD_WIN_HEIGHT)
|| (primary_win_info->generic.type != CMD_WIN
&& new_height <= (tui_term_height () - 2)
&& new_height >= MIN_WIN_HEIGHT));
if (ok)
{ /* Check the total height. */
struct tui_win_info *win_info;
if (primary_win_info == TUI_CMD_WIN)
win_info = (tui_source_windows ())->list[0];
else
win_info = TUI_CMD_WIN;
ok = ((new_height +
(win_info->generic.height + diff)) <= tui_term_height ());
}
}
else
{
int cur_total_height, total_height, min_height = 0;
struct tui_win_info *first_win;
struct tui_win_info *second_win;
if (cur_layout == SRC_DISASSEM_COMMAND)
{
first_win = TUI_SRC_WIN;
second_win = TUI_DISASM_WIN;
}
else
{
first_win = TUI_DATA_WIN;
second_win = (tui_source_windows ())->list[0];
}
/* We could simply add all the heights to obtain the same
result but below is more explicit since we subtract 1 for
the line that the first and second windows share, and add
one for the locator. */
total_height = cur_total_height =
(first_win->generic.height + second_win->generic.height - 1)
+ TUI_CMD_WIN->generic.height + 1; /* Locator. */
if (primary_win_info == TUI_CMD_WIN)
{
/* Locator included since first & second win share a line. */
ok = ((first_win->generic.height +
second_win->generic.height + diff) >=
(MIN_WIN_HEIGHT * 2)
&& new_height >= MIN_CMD_WIN_HEIGHT);
if (ok)
{
total_height = new_height +
(first_win->generic.height +
second_win->generic.height + diff);
min_height = MIN_CMD_WIN_HEIGHT;
}
}
else
{
min_height = MIN_WIN_HEIGHT;
/* First see if we can increase/decrease the command
window. And make sure that the command window is at
least 1 line. */
ok = ((TUI_CMD_WIN->generic.height + diff) > 0);
if (!ok)
{ /* Looks like we have to increase/decrease one of
the other windows. */
if (primary_win_info == first_win)
ok = (second_win->generic.height + diff) >= min_height;
else
ok = (first_win->generic.height + diff) >= min_height;
}
if (ok)
{
if (primary_win_info == first_win)
total_height = new_height +
second_win->generic.height +
TUI_CMD_WIN->generic.height + diff;
else
total_height = new_height +
first_win->generic.height +
TUI_CMD_WIN->generic.height + diff;
}
}
/* Now make sure that the proposed total height doesn't
exceed the old total height. */
if (ok)
ok = (new_height >= min_height
&& total_height <= cur_total_height);
}
}
return ok;
}
static void
parse_scrolling_args (char *arg,
struct tui_win_info **win_to_scroll,
int *num_to_scroll)
{
if (num_to_scroll)
*num_to_scroll = 0;
*win_to_scroll = tui_win_with_focus ();
/* First set up the default window to scroll, in case there is no
window name arg. */
if (arg != (char *) NULL)
{
char *buf, *buf_ptr;
/* Process the number of lines to scroll. */
buf = buf_ptr = xstrdup (arg);
if (isdigit (*buf_ptr))
{
char *num_str;
num_str = buf_ptr;
buf_ptr = strchr (buf_ptr, ' ');
if (buf_ptr != (char *) NULL)
{
*buf_ptr = (char) 0;
if (num_to_scroll)
*num_to_scroll = atoi (num_str);
buf_ptr++;
}
else if (num_to_scroll)
*num_to_scroll = atoi (num_str);
}
/* Process the window name if one is specified. */
if (buf_ptr != (char *) NULL)
{
char *wname;
int i;
if (*buf_ptr == ' ')
while (*(++buf_ptr) == ' ')
;
if (*buf_ptr != (char) 0)
{
wname = buf_ptr;
/* Validate the window name. */
for (i = 0; i < strlen (wname); i++)
wname[i] = toupper (wname[i]);
}
else
wname = "?";
*win_to_scroll = tui_partial_win_by_name (wname);
if (*win_to_scroll == (struct tui_win_info *) NULL
|| !(*win_to_scroll)->generic.is_visible)
error (_("Invalid window specified. \n\
The window name specified must be valid and visible.\n"));
else if (*win_to_scroll == TUI_CMD_WIN)
*win_to_scroll = (tui_source_windows ())->list[0];
}
xfree (buf);
}
}
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