ports/mc
ports/mc
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mc/src/layout.c
Slava Zanko 2b653ecf33 Ticket #1991: toggle panels view 
Added keybinding for switch panels view (horizontally/vertically).

Default value for keybind is
[main]
CmdTogglePanelsView = alt-comma

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
2010-02-04 11:29:16 +02:00

1170 строки
31 KiB
C
Исходник Ответственный История

/* Panel layout module for the Midnight Commander
Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2009 Free Software Foundation, Inc.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file layout.c
* \brief Source: panel layout module
*/
#include <config.h>
#include <signal.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
/*
* If TIOCGWINSZ supported, make it available here, because window-
* resizing code depends on it...
*/
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <termios.h>
#include <unistd.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/skin.h"
#include "lib/tty/key.h"
#include "lib/tty/mouse.h"
#include "lib/tty/win.h" /* do_enter_ca_mode() */
#include "lib/mcconfig.h"
#include "lib/vfs/mc-vfs/vfs.h" /* For vfs_translate_url() */
#include "lib/strutil.h"
#include "dialog.h"
#include "widget.h"
#include "command.h"
#include "main-widgets.h"
#include "main.h"
#include "subshell.h" /* For use_subshell and resize_subshell() */
#include "tree.h"
#include "menu.h"
#include "background.h" /* we_are_background */
/* Needed for the extern declarations of integer parameters */
#include "dir.h"
#include "panel.h" /* The Panel widget */
#include "consaver/cons.saver.h"
#include "layout.h"
#include "info.h" /* The Info widget */
#include "src/viewer/mcviewer.h" /* The view widget */
#include "setup.h" /* For save_setup() */
/* Controls the display of the rotating dash on the verbose mode */
int nice_rotating_dash = 1;
/* 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;
/* Set to show free space on device assigned to current directory */
int free_space = 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 {
panel_view_mode_t type;
Widget *widget;
char *last_saved_dir; /* last view_list working directory */
} panels [MAX_VIEWS] = {
/* init MAX_VIEWS items */
{ view_listing, NULL, NULL },
{ view_listing, NULL, NULL }
};
/* 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 _free_space;
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_("show free sp&Ace"), &free_space, 0 },
{ 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 }
};
#define LAYOUT_OPTIONS_COUNT 10
#define HIGHLIGHT_OPTIONS_COUNT 2
#define SPLIT_OPTIONS_COUNT 1
#define OTHER_OPTIONS_COUNT 7
static gsize first_width, second_width;
static const char *output_lines_label;
static WButton *bleft_widget, *bright_widget;
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;
tty_setcolor (COLOR_NORMAL);
dlg_move (layout_dlg, 6, 6);
tty_printf ("%03d", _first_panel_size);
dlg_move (layout_dlg, 6, 18);
if (_horizontal_split)
tty_printf ("%03d", height - _first_panel_size);
else
tty_printf ("%03d", COLS - _first_panel_size);
}
static int b2left_cback (int action)
{
(void) action;
if (_equal_split){
/* Turn equal split off */
_equal_split = 0;
check_options [7].widget->state = check_options [7].widget->state & ~C_BOOL;
dlg_select_widget (check_options [7].widget);
dlg_select_widget (bleft_widget);
}
_first_panel_size++;
return 0;
}
static int b2right_cback (int action)
{
(void) action;
if (_equal_split){
/* Turn equal split off */
_equal_split = 0;
check_options [7].widget->state = check_options [7].widget->state & ~C_BOOL;
dlg_select_widget (check_options [7].widget);
dlg_select_widget (bright_widget);
}
_first_panel_size--;
return 0;
}
static int bplus_cback (int action)
{
(void) action;
if (_output_lines < 99)
_output_lines++;
return 0;
}
static int bminus_cback (int action)
{
(void) action;
if (_output_lines > 0)
_output_lines--;
return 0;
}
static cb_ret_t
layout_callback (Dlg_head *h, Widget *sender,
dlg_msg_t msg, int parm, void *data)
{
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;
tty_setcolor (COLOR_HOT_NORMAL);
update_split ();
dlg_move (h, 6, 13);
tty_print_char ('=');
if (console_flag){
if (old_output_lines != _output_lines){
old_output_lines = _output_lines;
tty_setcolor (COLOR_NORMAL);
dlg_move (h, LAYOUT_OPTIONS_COUNT, 16 + first_width);
tty_print_string (output_lines_label);
dlg_move (h, LAYOUT_OPTIONS_COUNT, 10 + first_width);
tty_printf ("%02d", _output_lines);
}
}
return MSG_HANDLED;
case DLG_POST_KEY:
_filetype_mode = check_options [9].widget->state & C_BOOL;
_permission_mode = check_options [8].widget->state & C_BOOL;
_equal_split = check_options [7].widget->state & C_BOOL;
_menubar_visible = check_options [6].widget->state & C_BOOL;
_command_prompt = check_options [5].widget->state & C_BOOL;
_keybar_visible = check_options [3].widget->state & C_BOOL;
_message_visible = check_options [2].widget->state & C_BOOL;
_xterm_title = check_options [1].widget->state & C_BOOL;
_free_space = 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;
tty_setcolor (COLOR_NORMAL);
dlg_move (h, LAYOUT_OPTIONS_COUNT, 10 + first_width);
tty_printf ("%02d", _output_lines);
}
}
return MSG_HANDLED;
default:
return default_dlg_callback (h, sender, msg, parm, data);
}
}
static void
init_layout (void)
{
static int i18n_layt_flag = 0;
static int b1, b2, b3;
int i = sizeof (s_split_direction) / sizeof (char *);
const char *ok_button = _("&OK");
const char *cancel_button = _("&Cancel");
const char *save_button = _("&Save");
static const char *title1, *title2, *title3;
if (!i18n_layt_flag) {
gsize 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 = str_term_width1 (s_split_direction[i]) + 7;
if (l1 > first_width)
first_width = l1;
}
for (i = 0; i < LAYOUT_OPTIONS_COUNT; i++) {
check_options[i].text = _(check_options[i].text);
l1 = str_term_width1 (check_options[i].text) + 7;
if (l1 > first_width)
first_width = l1;
}
l1 = str_term_width1 (title1) + 1;
if (l1 > first_width)
first_width = l1;
l1 = str_term_width1 (title2) + 1;
if (l1 > first_width)
first_width = l1;
second_width = str_term_width1 (title3) + 1;
for (i = 0; i < OTHER_OPTIONS_COUNT; i++) {
check_options[i].text = _(check_options[i].text);
l1 = str_term_width1 (check_options[i].text) + 7;
if (l1 > second_width)
second_width = l1;
}
if (console_flag) {
l1 = str_term_width1 (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 + str_term_width1 (ok_button) /* 14 - all brackets and inner space */
+ str_term_width1 (save_button) /* notice: it is 3 char less because */
+ str_term_width1 (cancel_button); /* of '&' char in button text */
i = (first_width + second_width - l1) / 4;
b1 = 5 + i;
b2 = b1 + str_term_width1 (ok_button) + i + 6;
b3 = b2 + str_term_width1 (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 (2, 4, 6, first_width, title1));
add_widget (layout_dlg, groupbox_new (8, 4, 4, first_width, title2));
add_widget (layout_dlg,
groupbox_new (2, 5 + first_width, 10, second_width,
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 (LAYOUT_OPTIONS_COUNT, 12 + first_width, B_MINUS,
NARROW_BUTTON, "&-", bminus_cback));
add_widget (layout_dlg,
button_new (LAYOUT_OPTIONS_COUNT, 7 + first_width, B_PLUS, NARROW_BUTTON,
"&+", bplus_cback));
}
#define XTRACT(i) *check_options[i].variable, check_options[i].text
for (i = 0; i < OTHER_OPTIONS_COUNT; i++) {
check_options[i].widget =
check_new (LAYOUT_OPTIONS_COUNT - i - 1, 7 + first_width, XTRACT (i));
add_widget (layout_dlg, check_options[i].widget);
}
check_options[9].widget = check_new (10, 6, XTRACT (9));
add_widget (layout_dlg, check_options[9].widget);
check_options[8].widget = check_new (9, 6, XTRACT (8));
add_widget (layout_dlg, check_options[8].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;
_free_space = free_space;
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[7].widget = check_new (5, 6, XTRACT (7));
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[7].widget);
radio_widget = radio_new (3, 6, 2, s_split_direction);
add_widget (layout_dlg, radio_widget);
radio_widget->sel = horizontal_split;
}
void
layout_change (void)
{
setup_panels ();
/* 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);
load_hint (1);
}
void layout_cmd (void)
{
int result;
int i;
int layout_do_change = 0;
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 ();
mc_config_save_file (mc_main_config, NULL);
}
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;
}
}
void
clr_scr (void)
{
tty_set_normal_attrs ();
tty_fill_region (0, 0, LINES, COLS, ' ');
tty_refresh ();
}
void
repaint_screen (void)
{
do_refresh ();
tty_refresh ();
}
void
mc_refresh (void)
{
#ifdef WITH_BACKGROUND
if (we_are_background)
return;
#endif /* WITH_BACKGROUND */
if (winch_flag == 0)
tty_refresh ();
else {
/* if winch was caugth, we should do not only redraw screen, but
reposition/resize all */
change_screen_size ();
}
}
static void
panel_do_cols (int idx)
{
if (get_display_type (idx) == view_listing)
set_panel_formats ((WPanel *) panels [idx].widget);
else
panel_update_cols (panels [idx].widget, frame_half);
}
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 = str_term_width1 (mc_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);
winput_set_origin (cmdline, promptl, COLS - promptl);
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);
buttonbar_set_visible (the_bar, 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);
else
widget_set_size (&the_hint->widget, 0, 0, 0, 0);
update_xterm_title_path ();
}
static inline 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
sigwinch_handler (int dummy)
{
(void) dummy;
#if !(defined(USE_NCURSES) || defined(USE_NCURSESW)) /* don't do malloc in a signal handler */
low_level_change_screen_size ();
#endif
winch_flag = 1;
}
void
change_screen_size (void)
{
Dlg_head *d;
winch_flag = 0;
#if defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4
#if defined TIOCGWINSZ
#ifndef NCURSES_VERSION
tty_noraw_mode ();
tty_reset_screen ();
#endif
low_level_change_screen_size ();
#ifdef HAVE_SLANG
/* 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.
*/
SLsmg_init_smg ();
do_enter_ca_mode ();
tty_keypad (TRUE);
tty_nodelay (FALSE);
#endif
/* Inform all running dialogs */
d = current_dlg;
while (d != NULL) {
(*d->callback) (d, NULL, DLG_RESIZE, 0, NULL);
d = d->parent;
}
/* Now, force the redraw */
repaint_screen ();
#endif /* TIOCGWINSZ */
#endif /* defined(HAVE_SLANG) || NCURSES_VERSION_MAJOR >= 4 */
}
static int ok_to_refresh = 1;
void use_dash (int flag)
{
if (flag)
ok_to_refresh++;
else
ok_to_refresh--;
}
void set_hintbar(const char *str)
{
label_set_text (the_hint, str);
if (ok_to_refresh > 0)
mc_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 */
tty_getyx (&row, &col);
tty_gotoyx (0, 0);
tty_setcolor (NORMAL_COLOR);
tty_print_string (str_fit_to_term (str, COLS - 1, J_LEFT));
/* Restore cursor position */
tty_gotoyx (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;
tty_gotoyx (0, COLS - 1);
tty_setcolor (NORMAL_COLOR);
tty_print_char (rotating_dash [pos]);
mc_refresh ();
pos++;
}
const 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, panel_view_mode_t type)
{
int x = 0, y = 0, cols = 0, lines = 0;
int the_other = 0; /* Index to the other panel */
const char *file_name = NULL; /* For Quick view */
Widget *new_widget = NULL, *old_widget = NULL;
WPanel *the_other_panel = NULL;
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 */
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;
}
}
}
/* Restoring saved path from panels.ini for nonlist panel */
/* when it's first creation (for example view_info) */
if (old_widget == NULL && type != view_listing) {
char panel_dir [MC_MAXPATHLEN];
mc_get_current_wd (panel_dir, sizeof (panel_dir));
panels[num].last_saved_dir = g_strdup (panel_dir);
}
switch (type) {
case view_nothing:
case view_listing:
new_widget = restore_into_right_dir_panel (num, old_widget);
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 *) mcview_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 = "";
mcview_load ((struct mcview_struct *) new_widget, 0, file_name, 0);
break;
}
if (type != view_listing)
/* Must save dir, for restoring after change type to */
/* view_listing */
save_panel_dir (num);
panels [num].type = type;
panels [num].widget = new_widget;
/* We set the same size the old widget had */
widget_set_size (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 != NULL) && (old_widget != NULL))
dlg_replace_widget (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)
&& (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 (panels [1].widget);
else if (dlg_widget_active (panels[1].widget))
dlg_select_widget (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;
}
}
panel_view_mode_t
get_display_type (int idx)
{
return panels [idx].type;
}
struct Widget *
get_panel_widget (int idx)
{
return panels[idx].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 */
panel_view_mode_t
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 */
panel_view_mode_t
get_other_type (void)
{
if (panels [0].widget == (Widget *) current_panel)
return panels [1].type;
else
return panels [0].type;
}
/* Save current list_view widget directory into panel */
void
save_panel_dir (int idx)
{
panel_view_mode_t type = get_display_type (idx);
Widget *widget = get_panel_widget (idx);
if ((type == view_listing) && (widget != NULL)) {
WPanel *w = (WPanel *) widget;
char *widget_work_dir = w->cwd;
g_free(panels [idx].last_saved_dir); /* last path no needed */
/* Because path can be nonlocal */
panels [idx].last_saved_dir = vfs_translate_url (widget_work_dir);
}
}
/* Save current list_view widget directory into panel */
Widget *
restore_into_right_dir_panel (int idx, Widget *from_widget)
{
Widget *new_widget = NULL;
const char *saved_dir = panels [idx].last_saved_dir;
gboolean last_was_panel = (from_widget &&
get_display_type(idx) != view_listing);
const char *p_name = get_nth_panel_name (idx);
if (last_was_panel)
new_widget = (Widget *) panel_new_with_dir (p_name, saved_dir);
else
new_widget = (Widget *) panel_new (p_name);
return new_widget;
}
/* Return working dir, if it's view_listing - cwd,
but for other types - last_saved_dir */
const char *
get_panel_dir_for (const WPanel *widget)
{
int i;
for (i = 0; i < MAX_VIEWS; i++)
if ((WPanel *) get_panel_widget (i) == widget)
break;
if (i >= MAX_VIEWS)
return ".";
if (get_display_type (i) == view_listing)
return ((WPanel *) get_panel_widget (i))->cwd;
return panels[i].last_saved_dir;
}
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