mirrors/mc
1
0
Fork 0
mirror of https://github.com/MidnightCommander/mc synced 2024-12-26 06:16:53 +03:00
Code Issues Packages Projects Releases Wiki Activity
207f7d126c
mc/src/layout.c
Roland Illig 207f7d126c Even more const-ification.
2004-08-17 00:00:32 +00:00

1138 lines
30 KiB
C
Raw Blame History

/* Panel layout module for the Midnight Commander
Copyright (C) 1995 the Free Software Foundation
Written: 1995 Janne Kukonlehto
1995 Miguel de Icaza
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 <config.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#if HAVE_TERMIOS_H
# include <termios.h>
#endif
/*
* If TIOCGWINSZ supported, make it available here, because window-
* resizing code depends on it...
*/
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <signal.h>
#include "global.h"
#include "tty.h" /* COLS */
#include "win.h"
#include "color.h"
#include "key.h"
#include "dialog.h"
#include "widget.h"
#include "command.h"
#include "profile.h" /* For sync_profiles() */
#include "mouse.h"
#define WANT_WIDGETS
#include "main.h"
#include "subshell.h" /* For use_subshell and resize_subshell() */
#include "tree.h"
#include "menu.h"
/* Needed for the extern declarations of integer parameters */
#include "dir.h"
#include "panel.h" /* The Panel widget */
#include "cons.saver.h"
#include "layout.h"
#include "info.h" /* The Info widget */
#include "view.h" /* The view widget */
#define WANT_WIDGETS
#include "setup.h" /* For save_setup() */
/* Controls the display of the rotating dash on the verbose mode */
int nice_rotating_dash = 1;
/* If set, then we have to call the layout_change routine from main */
static int layout_do_change = 0;
/* Set if the panels are split horizontally */
int horizontal_split = 0;
/* Set if the window has changed it's size */
int winch_flag = 0;
/* Set if the split is the same */
int equal_split = 1;
/* First panel size if the panel are not split equally */
int first_panel_size = 0;
/* The number of output lines shown (if available) */
int output_lines = 0;
/* Set if the command prompt is to be displayed */
int command_prompt = 1;
/* Set if the nice and useful keybar is visible */
int keybar_visible = 1;
/* Set if the nice message (hint) bar is visible */
int message_visible = 1;
/* Set to show current working dir in xterm window title */
int xterm_title = 1;
/* The starting line for the output of the subprogram */
int output_start_y = 0;
/* The maximum number of views managed by the set_display_type routine */
/* Must be at least two (for current and other). Please note that until */
/* Janne gets around this, we will only manage two of them :-) */
#define MAX_VIEWS 2
static struct {
int type;
Widget *widget;
} panels [MAX_VIEWS];
/* These variables are used to avoid updating the information unless */
/* we need it */
static int old_first_panel_size;
static int old_horizontal_split;
static int old_output_lines;
/* Internal variables */
static int _horizontal_split;
static int _equal_split;
static int _first_panel_size;
static int _menubar_visible;
static int _output_lines;
static int _command_prompt;
static int _keybar_visible;
static int _message_visible;
static int _xterm_title;
static int _permission_mode;
static int _filetype_mode;
static int height;
/* Width 12 for a wee Quick (Hex) View */
#define MINWIDTH 12
#define MINHEIGHT 5
#define BY 12
#define B_2LEFT B_USER
#define B_2RIGHT (B_USER + 1)
#define B_PLUS (B_USER + 2)
#define B_MINUS (B_USER + 3)
static Dlg_head *layout_dlg;
static const char *s_split_direction [2] = {
N_("&Vertical"),
N_("&Horizontal")
};
static WRadio *radio_widget;
static struct {
const char *text;
int *variable;
WCheck *widget;
} check_options [] = {
{ N_("&Xterm window title"), &xterm_title, 0 },
{ N_("h&Intbar visible"), &message_visible, 0 },
{ N_("&Keybar visible"), &keybar_visible, 0 },
{ N_("command &Prompt"), &command_prompt, 0 },
{ N_("show &Mini status"), &show_mini_info, 0 },
{ N_("menu&Bar visible"), &menubar_visible, 0 },
{ N_("&Equal split"), &equal_split, 0 },
{ N_("pe&Rmissions"), &permission_mode, 0 },
{ N_("&File types"), &filetype_mode, 0 },
{ 0, 0, 0 }
};
static int first_width, second_width;
static char *output_lines_label;
static WButton *bleft_widget, *bright_widget;
/* Declarations for static functions */
static void low_level_change_screen_size (void);
static void _check_split (void)
{
if (_horizontal_split){
if (_equal_split)
_first_panel_size = height / 2;
else if (_first_panel_size < MINHEIGHT)
_first_panel_size = MINHEIGHT;
else if (_first_panel_size > height - MINHEIGHT)
_first_panel_size = height - MINHEIGHT;
} else {
if (_equal_split)
_first_panel_size = COLS / 2;
else if (_first_panel_size < MINWIDTH)
_first_panel_size = MINWIDTH;
else if (_first_panel_size > COLS - MINWIDTH)
_first_panel_size = COLS - MINWIDTH;
}
}
static void update_split (void)
{
/* Check split has to be done before testing if it changed, since
it can change due to calling _check_split() as well*/
_check_split ();
/* To avoid setting the cursor to the wrong place */
if ((old_first_panel_size == _first_panel_size) &&
(old_horizontal_split == _horizontal_split)){
return;
}
old_first_panel_size = _first_panel_size;
old_horizontal_split = _horizontal_split;
attrset (COLOR_NORMAL);
dlg_move (layout_dlg, 6, 6);
printw ("%03d", _first_panel_size);
dlg_move (layout_dlg, 6, 18);
if (_horizontal_split)
printw ("%03d", height - _first_panel_size);
else
printw ("%03d", COLS - _first_panel_size);
}
static int b2left_cback (int action)
{
if (_equal_split){
/* Turn equal split off */
_equal_split = 0;
check_options [6].widget->state = check_options [6].widget->state & ~C_BOOL;
dlg_select_widget (layout_dlg, check_options [6].widget);
dlg_select_widget (layout_dlg, bleft_widget);
}
_first_panel_size++;
return 0;
}
static int b2right_cback (int action)
{
if (_equal_split){
/* Turn equal split off */
_equal_split = 0;
check_options [6].widget->state = check_options [6].widget->state & ~C_BOOL;
dlg_select_widget (layout_dlg, check_options [6].widget);
dlg_select_widget (layout_dlg, bright_widget);
}
_first_panel_size--;
return 0;
}
static int bplus_cback (int action)
{
if (_output_lines < 99)
_output_lines++;
return 0;
}
static int bminus_cback (int action)
{
if (_output_lines > 0)
_output_lines--;
return 0;
}
static cb_ret_t
layout_callback (struct Dlg_head *h, dlg_msg_t msg, int parm)
{
switch (msg) {
case DLG_DRAW:
/*When repainting the whole dialog (e.g. with C-l) we have to
update everything*/
common_dialog_repaint (h);
old_first_panel_size = -1;
old_horizontal_split = -1;
old_output_lines = -1;
attrset (COLOR_HOT_NORMAL);
update_split ();
dlg_move (h, 6, 13);
addch ('=');
if (console_flag){
if (old_output_lines != _output_lines){
old_output_lines = _output_lines;
attrset (COLOR_NORMAL);
dlg_move (h, 9, 16 + first_width);
addstr (output_lines_label);
dlg_move (h, 9, 10 + first_width);
printw ("%02d", _output_lines);
}
}
return MSG_HANDLED;
case DLG_POST_KEY:
_filetype_mode = check_options [8].widget->state & C_BOOL;
_permission_mode = check_options [7].widget->state & C_BOOL;
_equal_split = check_options [6].widget->state & C_BOOL;
_menubar_visible = check_options [5].widget->state & C_BOOL;
_command_prompt = check_options [4].widget->state & C_BOOL;
_keybar_visible = check_options [2].widget->state & C_BOOL;
_message_visible = check_options [1].widget->state & C_BOOL;
_xterm_title = check_options [0].widget->state & C_BOOL;
if (console_flag){
int minimum;
if (_output_lines < 0)
_output_lines = 0;
height = LINES - _keybar_visible - _command_prompt -
_menubar_visible - _output_lines - _message_visible;
minimum = MINHEIGHT * (1 + _horizontal_split);
if (height < minimum){
_output_lines -= minimum - height;
height = minimum;
}
} else {
height = LINES - _keybar_visible - _command_prompt -
_menubar_visible - _output_lines - _message_visible;
}
if (_horizontal_split != radio_widget->sel){
_horizontal_split = radio_widget->sel;
if (_horizontal_split)
_first_panel_size = height / 2;
else
_first_panel_size = COLS / 2;
}
update_split ();
if (console_flag){
if (old_output_lines != _output_lines){
old_output_lines = _output_lines;
attrset (COLOR_NORMAL);
dlg_move (h, 9, 10 + first_width);
printw ("%02d", _output_lines);
}
}
return MSG_HANDLED;
default:
return default_dlg_callback (h, msg, parm);
}
}
static void
init_layout (void)
{
static int i18n_layt_flag = 0;
static int b1, b2, b3;
int i = sizeof (s_split_direction) / sizeof (char *);
char *ok_button = _("&OK");
char *cancel_button = _("&Cancel");
char *save_button = _("&Save");
static char *title1, *title2, *title3;
if (!i18n_layt_flag) {
register int l1;
first_width = 19; /* length of line with '<' '>' buttons */
title1 = _(" Panel split ");
title2 = _(" Highlight... ");
title3 = _(" Other options ");
output_lines_label = _("output lines");
while (i--) {
s_split_direction[i] = _(s_split_direction[i]);
l1 = strlen (s_split_direction[i]) + 7;
if (l1 > first_width)
first_width = l1;
}
for (i = 0; i <= 8; i++) {
check_options[i].text = _(check_options[i].text);
l1 = strlen (check_options[i].text) + 7;
if (l1 > first_width)
first_width = l1;
}
l1 = strlen (title1) + 1;
if (l1 > first_width)
first_width = l1;
l1 = strlen (title2) + 1;
if (l1 > first_width)
first_width = l1;
second_width = strlen (title3) + 1;
for (i = 0; i < 6; i++) {
check_options[i].text = _(check_options[i].text);
l1 = strlen (check_options[i].text) + 7;
if (l1 > second_width)
second_width = l1;
}
if (console_flag) {
l1 = strlen (output_lines_label) + 13;
if (l1 > second_width)
second_width = l1;
}
/*
* alex@bcs.zp.ua:
* To be completely correct, one need to check if the title
* does not exceed dialog length and total length of 3 buttons
* allows their placement in one row. But assuming this dialog
* is wide enough, I don't include such a tests.
*
* Now the last thing to do - properly space buttons...
*/
l1 = 11 + strlen (ok_button) /* 14 - all brackets and inner space */
+strlen (save_button) /* notice: it is 3 char less because */
+strlen (cancel_button); /* of '&' char in button text */
i = (first_width + second_width - l1) / 4;
b1 = 5 + i;
b2 = b1 + strlen (ok_button) + i + 6;
b3 = b2 + strlen (save_button) + i + 4;
i18n_layt_flag = 1;
}
layout_dlg =
create_dlg (0, 0, 15, first_width + second_width + 9,
dialog_colors, layout_callback, "[Layout]",
_("Layout"), DLG_CENTER | DLG_REVERSE);
add_widget (layout_dlg, groupbox_new (4, 2, first_width, 6, title1));
add_widget (layout_dlg, groupbox_new (4, 8, first_width, 4, title2));
add_widget (layout_dlg,
groupbox_new (5 + first_width, 2, second_width, 10,
title3));
add_widget (layout_dlg,
button_new (BY, b3, B_CANCEL, NORMAL_BUTTON, cancel_button,
0));
add_widget (layout_dlg,
button_new (BY, b2, B_EXIT, NORMAL_BUTTON, save_button,
0));
add_widget (layout_dlg,
button_new (BY, b1, B_ENTER, DEFPUSH_BUTTON, ok_button,
0));
if (console_flag) {
add_widget (layout_dlg,
button_new (9, 12 + first_width, B_MINUS,
NARROW_BUTTON, "&-", bminus_cback));
add_widget (layout_dlg,
button_new (9, 7 + first_width, B_PLUS, NARROW_BUTTON,
"&+", bplus_cback));
}
#define XTRACT(i) *check_options[i].variable, check_options[i].text
for (i = 0; i < 6; i++) {
check_options[i].widget =
check_new (8 - i, 7 + first_width, XTRACT (i));
add_widget (layout_dlg, check_options[i].widget);
}
check_options[8].widget = check_new (10, 6, XTRACT (8));
add_widget (layout_dlg, check_options[8].widget);
check_options[7].widget = check_new (9, 6, XTRACT (7));
add_widget (layout_dlg, check_options[7].widget);
_filetype_mode = filetype_mode;
_permission_mode = permission_mode;
_equal_split = equal_split;
_menubar_visible = menubar_visible;
_command_prompt = command_prompt;
_keybar_visible = keybar_visible;
_message_visible = message_visible;
_xterm_title = xterm_title;
bright_widget =
button_new (6, 15, B_2RIGHT, NARROW_BUTTON, "&>", b2right_cback);
add_widget (layout_dlg, bright_widget);
bleft_widget =
button_new (6, 9, B_2LEFT, NARROW_BUTTON, "&<", b2left_cback);
add_widget (layout_dlg, bleft_widget);
check_options[6].widget = check_new (5, 6, XTRACT (6));
old_first_panel_size = -1;
old_horizontal_split = -1;
old_output_lines = -1;
_first_panel_size = first_panel_size;
_output_lines = output_lines;
add_widget (layout_dlg, check_options[6].widget);
radio_widget = radio_new (3, 6, 2, s_split_direction, 1);
add_widget (layout_dlg, radio_widget);
radio_widget->sel = horizontal_split;
}
static void
layout_change (void)
{
setup_panels ();
layout_do_change = 0;
/* re-init the menu, because perhaps there was a change in the way
how the panel are split (horizontal/vertical). */
done_menu ();
init_menu ();
menubar_arrange (the_menubar);
}
void layout_cmd (void)
{
int result;
int i;
init_layout ();
run_dlg (layout_dlg);
result = layout_dlg->ret_value;
if (result == B_ENTER || result == B_EXIT){
for (i = 0; check_options [i].text; i++)
if (check_options [i].widget)
*check_options [i].variable = check_options [i].widget->state & C_BOOL;
horizontal_split = radio_widget->sel;
first_panel_size = _first_panel_size;
output_lines = _output_lines;
layout_do_change = 1;
}
if (result == B_EXIT){
save_layout ();
sync_profiles ();
}
destroy_dlg (layout_dlg);
if (layout_do_change)
layout_change ();
}
static void check_split (void)
{
if (horizontal_split){
if (equal_split)
first_panel_size = height / 2;
else if (first_panel_size < MINHEIGHT)
first_panel_size = MINHEIGHT;
else if (first_panel_size > height - MINHEIGHT)
first_panel_size = height - MINHEIGHT;
} else {
if (equal_split)
first_panel_size = COLS / 2;
else if (first_panel_size < MINWIDTH)
first_panel_size = MINWIDTH;
else if (first_panel_size > COLS - MINWIDTH)
first_panel_size = COLS - MINWIDTH;
}
}
#ifdef HAVE_SLANG
void
init_curses ()
{
#ifndef HAS_ACS_AS_PCCHARS
if (force_ugly_line_drawing)
SLtt_Has_Alt_Charset = 0;
#endif
SLsmg_init_smg ();
do_enter_ca_mode ();
init_colors ();
keypad (stdscr, TRUE);
nodelay (stdscr, FALSE);
}
#else
static const struct {
int acscode;
int character;
} acs_approx [] = {
{ 'q', '-' }, /* ACS_HLINE */
{ 'x', '|' }, /* ACS_VLINE */
{ 'l', '+' }, /* ACS_ULCORNER */
{ 'k', '+' }, /* ACS_URCORNER */
{ 'm', '+' }, /* ACS_LLCORNER */
{ 'j', '+' }, /* ACS_LRCORNER */
{ 'a', '#' }, /* ACS_CKBOARD */
{ 'u', '+' }, /* ACS_RTEE */
{ 't', '+' }, /* ACS_LTEE */
{ 'w', '+' }, /* ACS_TTEE */
{ 'v', '+' }, /* ACS_BTEE */
{ 'n', '+' }, /* ACS_PLUS */
{ 0, 0 } };
void init_curses (void)
{
int i;
initscr();
#ifdef HAVE_ESCDELAY
/*
* If ncurses exports the ESCDELAY variable, it should be set to
* a low value, or you'll experience a delay in processing escape
* sequences that are recognized by mc (e.g. Esc-Esc). On the other
* hand, making ESCDELAY too small can result in some sequences
* (e.g. cursor arrows) being reported as separate keys under heavy
* processor load, and this can be a problem if mc hasn't learned
* them in the "Learn Keys" dialog. The value is in milliseconds.
*/
ESCDELAY = 200;
#endif /* HAVE_ESCDELAY */
do_enter_ca_mode ();
mc_raw_mode ();
noecho ();
keypad (stdscr, TRUE);
nodelay (stdscr, FALSE);
init_colors ();
if (force_ugly_line_drawing) {
for (i = 0; acs_approx[i].acscode != 0; i++) {
acs_map[acs_approx[i].acscode] = acs_approx[i].character;
}
}
}
#endif /* ! HAVE_SLANG */
void
clr_scr (void)
{
standend ();
dlg_erase (midnight_dlg);
mc_refresh ();
doupdate ();
}
void
done_screen ()
{
if (!(quit & SUBSHELL_EXIT))
clr_scr ();
reset_shell_mode ();
mc_noraw_mode ();
keypad (stdscr, FALSE);
done_colors ();
}
static void
panel_do_cols (int index)
{
if (get_display_type (index) == view_listing)
set_panel_formats ((WPanel *) panels [index].widget);
else {
panel_update_cols (panels [index].widget, frame_half);
/* In case of an Hex Quick View must review line length */
if (get_display_type (index) == view_quick)
view_update_bytes_per_line ((WView *) panels [index].widget);
}
}
void
setup_panels (void)
{
int start_y;
int promptl; /* the prompt len */
if (console_flag) {
int minimum;
if (output_lines < 0)
output_lines = 0;
height =
LINES - keybar_visible - command_prompt - menubar_visible -
output_lines - message_visible;
minimum = MINHEIGHT * (1 + horizontal_split);
if (height < minimum) {
output_lines -= minimum - height;
height = minimum;
}
} else {
height =
LINES - menubar_visible - command_prompt - keybar_visible -
message_visible;
}
check_split ();
start_y = menubar_visible;
/* The column computing is defered until panel_do_cols */
if (horizontal_split) {
widget_set_size (panels[0].widget, start_y, 0, first_panel_size,
0);
widget_set_size (panels[1].widget, start_y + first_panel_size, 0,
height - first_panel_size, 0);
} else {
int first_x = first_panel_size;
widget_set_size (panels[0].widget, start_y, 0, height, 0);
widget_set_size (panels[1].widget, start_y, first_x, height, 0);
}
panel_do_cols (0);
panel_do_cols (1);
promptl = strlen (prompt);
widget_set_size (&the_menubar->widget, 0, 0, 1, COLS);
if (command_prompt) {
widget_set_size (&cmdline->widget, LINES - 1 - keybar_visible,
promptl, 1,
COLS - promptl - (keybar_visible ? 0 : 1));
winput_set_origin (cmdline, promptl,
COLS - promptl - (keybar_visible ? 0 : 1));
widget_set_size (&the_prompt->widget, LINES - 1 - keybar_visible,
0, 1, promptl);
} else {
widget_set_size (&cmdline->widget, 0, 0, 0, 0);
winput_set_origin (cmdline, 0, 0);
widget_set_size (&the_prompt->widget, LINES, COLS, 0, 0);
}
widget_set_size (&the_bar->widget, LINES - 1, 0, keybar_visible, COLS);
the_bar->visible = keybar_visible;
/* Output window */
if (console_flag && output_lines) {
output_start_y =
LINES - command_prompt - keybar_visible - output_lines;
show_console_contents (output_start_y,
LINES - output_lines - keybar_visible - 1,
LINES - keybar_visible - 1);
}
if (message_visible) {
widget_set_size (&the_hint->widget, height + start_y, 0, 1, COLS);
set_hintbar (""); /* clean up the line */
} else
widget_set_size (&the_hint->widget, 0, 0, 0, 0);
load_hint (1);
update_xterm_title_path ();
}
void flag_winch (int dummy)
{
#ifndef USE_NCURSES /* don't do malloc in a signal handler */
low_level_change_screen_size ();
#endif
winch_flag = 1;
}
static void
low_level_change_screen_size (void)
{
#if defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4
#if defined TIOCGWINSZ
struct winsize winsz;
winsz.ws_col = winsz.ws_row = 0;
/* Ioctl on the STDIN_FILENO */
ioctl (0, TIOCGWINSZ, &winsz);
if (winsz.ws_col && winsz.ws_row){
#if defined(NCURSES_VERSION) && defined(HAVE_RESIZETERM)
resizeterm(winsz.ws_row, winsz.ws_col);
clearok(stdscr,TRUE); /* sigwinch's should use a semaphore! */
#else
COLS = winsz.ws_col;
LINES = winsz.ws_row;
#endif
#ifdef HAVE_SUBSHELL_SUPPORT
resize_subshell ();
#endif
}
#endif /* TIOCGWINSZ */
#endif /* defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4 */
}
void
change_screen_size (void)
{
#if defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4
#if defined TIOCGWINSZ
#ifndef NCURSES_VERSION
mc_noraw_mode ();
endwin ();
#endif
low_level_change_screen_size ();
check_split ();
#ifndef NCURSES_VERSION
/* XSI Curses spec states that portable applications shall not invoke
* initscr() more than once. This kludge could be done within the scope
* of the specification by using endwin followed by a refresh (in fact,
* more than one curses implementation does this); it is guaranteed to work
* only with slang.
*/
init_curses ();
#endif
setup_panels ();
/* Inform currently running dialog */
(*current_dlg->callback) (current_dlg, DLG_RESIZE, 0);
#ifdef RESIZABLE_MENUBAR
menubar_arrange (the_menubar);
#endif
/* Now, force the redraw */
do_refresh ();
touchwin (stdscr);
#endif /* TIOCGWINSZ */
#endif /* defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4 */
winch_flag = 0;
}
static int ok_to_refresh = 1;
void use_dash (int flag)
{
if (flag)
ok_to_refresh++;
else
ok_to_refresh--;
}
void set_hintbar(char *str)
{
label_set_text (the_hint, str);
if (ok_to_refresh > 0)
refresh();
}
void print_vfs_message (const char *msg, ...)
{
va_list ap;
char str [128];
va_start (ap, msg);
g_vsnprintf (str, sizeof (str), msg, ap);
va_end (ap);
if (midnight_shutdown)
return;
if (!message_visible || !the_hint || !the_hint->widget.parent) {
int col, row;
if (!nice_rotating_dash || (ok_to_refresh <= 0))
return;
/* Preserve current cursor position */
getyx (stdscr, row, col);
move (0, 0);
attrset (NORMAL_COLOR);
printw ("%-*s", COLS-1, str);
/* Restore cursor position */
move(row, col);
mc_refresh ();
return;
}
if (message_visible) {
set_hintbar(str);
}
}
void rotate_dash (void)
{
static const char rotating_dash [] = "|/-\\";
static size_t pos = 0;
if (!nice_rotating_dash || (ok_to_refresh <= 0))
return;
if (pos >= sizeof (rotating_dash)-1)
pos = 0;
move (0, COLS-1);
attrset (NORMAL_COLOR);
addch (rotating_dash [pos]);
mc_refresh ();
pos++;
}
char *get_nth_panel_name (int num)
{
static char buffer [BUF_SMALL];
if (!num)
return "New Left Panel";
else if (num == 1)
return "New Right Panel";
else {
g_snprintf (buffer, sizeof (buffer), "%ith Panel", num);
return buffer;
}
}
/* I wonder if I should start to use the folding mode than Dugan uses */
/* */
/* This is the centralized managing of the panel display types */
/* This routine takes care of destroying and creating new widgets */
/* Please note that it could manage MAX_VIEWS, not just left and right */
/* Currently nothing in the code takes advantage of this and has hard- */
/* coded values for two panels only */
/* Set the num-th panel to the view type: type */
/* This routine also keeps at least one WPanel object in the screen */
/* since a lot of routines depend on the current_panel variable */
void set_display_type (int num, int type)
{
int x, y, cols, lines;
int the_other; /* Index to the other panel */
char *file_name = 0; /* For Quick view */
Widget *new_widget, *old_widget;
WPanel *the_other_panel;
x = y = cols = lines = 0;
old_widget = 0;
if (num >= MAX_VIEWS){
fprintf (stderr, "Cannot allocate more that %d views\n", MAX_VIEWS);
abort ();
}
/* Check that we will have a WPanel * at least */
the_other = 0;
if (type != view_listing){
the_other = num == 0 ? 1 : 0;
if (panels [the_other].type != view_listing)
return;
}
/* Get rid of it */
if (panels [num].widget){
Widget *w = panels [num].widget;
WPanel *panel = (WPanel *) panels [num].widget;
x = w->x;
y = w->y;
cols = w->cols;
lines = w->lines;
old_widget = panels [num].widget;
if (panels [num].type == view_listing){
if (panel->frame_size == frame_full && type != view_listing){
cols = COLS - first_panel_size;
if (num == 1)
x = first_panel_size;
}
}
}
new_widget = 0;
switch (type){
case view_listing:
new_widget = (Widget *) panel_new (get_nth_panel_name (num));
break;
case view_info:
new_widget = (Widget *) info_new ();
break;
case view_tree:
new_widget = (Widget *) tree_new (1, 0, 0, 0, 0);
break;
case view_quick:
new_widget = (Widget *) view_new (0, 0, 0, 0, 1);
the_other_panel = (WPanel *) panels [the_other].widget;
if (the_other_panel)
file_name =
the_other_panel->dir.list[the_other_panel->selected].fname;
else
file_name = "";
view_init ((WView *) new_widget, 0, file_name, 0);
break;
}
panels [num].type = type;
panels [num].widget = (Widget *) new_widget;
/* We set the same size the old widget had */
widget_set_size ((Widget *) new_widget, y, x, lines, cols);
/* We use replace to keep the circular list of the dialog in the */
/* same state. Maybe we could just kill it and then replace it */
if (midnight_dlg && old_widget){
dlg_replace_widget (midnight_dlg, old_widget, panels [num].widget);
}
if (type == view_listing){
if (num == 0)
left_panel = (WPanel *) new_widget;
else
right_panel = (WPanel *) new_widget;
}
if (type == view_tree)
the_tree = (WTree *) new_widget;
/* Prevent current_panel's value from becoming invalid.
* It's just a quick hack to prevent segfaults. Comment out and
* try following:
* - select left panel
* - invoke menue left/tree
* - as long as you stay in the left panel almost everything that uses
* current_panel causes segfault, e.g. C-Enter, C-x c, ...
*/
if (type != view_listing)
if (current_panel == (WPanel *) old_widget)
current_panel = num == 0 ? right_panel : left_panel;
}
/* This routine is deeply sticked to the two panels idea.
What should it do in more panels. ANSWER - don't use it
in any multiple panels environment. */
void swap_panels ()
{
Widget tmp;
Widget *tmp_widget;
WPanel panel;
WPanel *panel1, *panel2;
int tmp_type;
#define panelswap(x) panel. x = panel1-> x; panel1-> x = panel2-> x; panel2-> x = panel. x;
#define panelswapstr(e) strcpy (panel. e, panel1-> e); \
strcpy (panel1-> e, panel2-> e); \
strcpy (panel2-> e, panel. e);
panel1 = (WPanel *) panels [0].widget;
panel2 = (WPanel *) panels [1].widget;
if (panels [0].type == view_listing && panels [1].type == view_listing) {
/* Change everything except format/sort/panel_name etc. */
panelswap (dir);
panelswap (active);
panelswapstr (cwd);
panelswapstr (lwd);
panelswap (count);
panelswap (marked);
panelswap (dirs_marked);
panelswap (total);
panelswap (top_file);
panelswap (selected);
panelswap (is_panelized);
panelswap (dir_stat);
panel1->searching = 0;
panel2->searching = 0;
if (current_panel == panel1)
current_panel = panel2;
else
current_panel = panel1;
if (dlg_widget_active (panels[0].widget))
dlg_select_widget (midnight_dlg, (void *) panels [1].widget);
else if (dlg_widget_active (panels[1].widget))
dlg_select_widget (midnight_dlg, (void *) panels [0].widget);
} else {
WPanel *tmp_panel;
tmp_panel=right_panel;
right_panel=left_panel;
left_panel=tmp_panel;
if (panels [0].type == view_listing) {
if (!strcmp (panel1->panel_name, get_nth_panel_name (0))) {
g_free (panel1->panel_name);
panel1->panel_name = g_strdup (get_nth_panel_name (1));
}
}
if (panels [1].type == view_listing) {
if (!strcmp (panel2->panel_name, get_nth_panel_name (1))) {
g_free (panel2->panel_name);
panel2->panel_name = g_strdup (get_nth_panel_name (0));
}
}
tmp.x = panels [0].widget->x;
tmp.y = panels [0].widget->y;
tmp.cols = panels [0].widget->cols;
tmp.lines = panels [0].widget->lines;
panels [0].widget->x = panels [1].widget->x;
panels [0].widget->y = panels [1].widget->y;
panels [0].widget->cols = panels [1].widget->cols;
panels [0].widget->lines = panels [1].widget->lines;
panels [1].widget->x = tmp.x;
panels [1].widget->y = tmp.y;
panels [1].widget->cols = tmp.cols;
panels [1].widget->lines = tmp.lines;
tmp_widget = panels [0].widget;
panels [0].widget = panels [1].widget;
panels [1].widget = tmp_widget;
tmp_type = panels [0].type;
panels [0].type = panels [1].type;
panels [1].type = tmp_type;
}
}
int get_display_type (int index)
{
return panels [index].type;
}
struct Widget *
get_panel_widget (int index)
{
return panels[index].widget;
}
int get_current_index (void)
{
if (panels [0].widget == ((Widget *) current_panel))
return 0;
else
return 1;
}
int get_other_index (void)
{
return !get_current_index ();
}
struct WPanel *
get_other_panel (void)
{
return (struct WPanel *) get_panel_widget (get_other_index ());
}
/* Returns the view type for the current panel/view */
int get_current_type (void)
{
if (panels [0].widget == (Widget *) current_panel)
return panels [0].type;
else
return panels [1].type;
}
/* Returns the view type of the unselected panel */
int get_other_type (void)
{
if (panels [0].widget == (Widget *) current_panel)
return panels [1].type;
else
return panels [0].type;
}
Reference in New Issue View Git Blame Copy Permalink