Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1580 insertions, 0 deletions

diff --git a/src/filemanager/layout.c b/src/filemanager/layout.c
new file mode 100644
index 0000000..c9d581f
--- /dev/null
+++ b/src/filemanager/layout.c
@@ -0,0 +1,1580 @@
+/*
+   Panel layout module for the Midnight Commander
+
+   Copyright (C) 1995-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Janne Kukonlehto, 1995
+   Miguel de Icaza, 1995
+   Andrew Borodin <aborodin@vmail.ru>, 2011-2022
+   Slava Zanko <slavazanko@gmail.com>, 2013
+   Avi Kelman <patcherton.fixesthings@gmail.com>, 2013
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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.
+
+   The Midnight Commander 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/>.
+ */
+
+/** \file layout.c
+ *  \brief Source: panel layout module
+ */
+
+#include <config.h>
+
+#include <pwd.h>                /* for username in xterm title */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.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/mcconfig.h"
+#include "lib/vfs/vfs.h"        /* vfs_get_cwd () */
+#include "lib/strutil.h"
+#include "lib/widget.h"
+#include "lib/event.h"
+#include "lib/util.h"           /* mc_time_elapsed() */
+
+#include "src/consaver/cons.saver.h"
+#include "src/viewer/mcviewer.h"        /* The view widget */
+#include "src/setup.h"
+#ifdef ENABLE_SUBSHELL
+#include "src/subshell/subshell.h"
+#endif
+
+#include "command.h"
+#include "filemanager.h"
+#include "tree.h"
+/* Needed for the extern declarations of integer parameters */
+#include "dir.h"
+#include "layout.h"
+#include "info.h"               /* The Info widget */
+
+/*** global variables ****************************************************************************/
+
+panels_layout_t panels_layout = {
+    /* Set if the panels are split horizontally */
+    .horizontal_split = FALSE,
+
+    /* vertical split */
+    .vertical_equal = TRUE,
+    .left_panel_size = 0,
+
+    /* horizontal split */
+    .horizontal_equal = TRUE,
+    .top_panel_size = 0
+};
+
+/* Controls the display of the rotating dash on the verbose mode */
+gboolean nice_rotating_dash = TRUE;
+
+/* The number of output lines shown (if available) */
+int output_lines = 0;
+
+/* Set if the command prompt is to be displayed */
+gboolean command_prompt = TRUE;
+
+/* Set if the main menu is visible */
+gboolean menubar_visible = TRUE;
+
+/* Set to show current working dir in xterm window title */
+gboolean xterm_title = TRUE;
+
+/* Set to show free space on device assigned to current directory */
+gboolean free_space = TRUE;
+
+/* The starting line for the output of the subprogram */
+int output_start_y = 0;
+
+int ok_to_refresh = 1;
+
+/*** file scope macro definitions ****************************************************************/
+
+/* The maximum number of views managed by the create_panel 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
+
+/* Width 12 for a wee Quick (Hex) View */
+#define MINWIDTH 12
+#define MINHEIGHT 5
+
+#define B_2LEFT B_USER
+#define B_2RIGHT (B_USER + 1)
+#define B_PLUS (B_USER + 2)
+#define B_MINUS (B_USER + 3)
+
+#define LAYOUT_OPTIONS_COUNT  G_N_ELEMENTS (check_options)
+
+/*** file scope type declarations ****************************************************************/
+
+typedef struct
+{
+    gboolean menubar_visible;
+    gboolean command_prompt;
+    gboolean keybar_visible;
+    gboolean message_visible;
+    gboolean xterm_title;
+    gboolean free_space;
+    int output_lines;
+} layout_t;
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+static struct
+{
+    panel_view_mode_t type;
+    Widget *widget;
+    char *last_saved_dir;       /* last view_list working directory */
+} panels[MAX_VIEWS] =
+{
+    /* *INDENT-OFF* */
+    /* init MAX_VIEWS items */
+    { view_listing, NULL, NULL},
+    { view_listing, NULL, NULL}
+    /* *INDENT-ON* */
+};
+
+static layout_t old_layout;
+static panels_layout_t old_panels_layout;
+
+static gboolean equal_split;
+static int _output_lines;
+
+static int height;
+
+static WRadio *radio_widget;
+
+static struct
+{
+    const char *text;
+    gboolean *variable;
+    WCheck *widget;
+} check_options[] =
+{
+    /* *INDENT-OFF* */
+    { N_("&Equal split"), &equal_split, NULL },
+    { N_("&Menubar visible"), &menubar_visible, NULL },
+    { N_("Command &prompt"), &command_prompt, NULL },
+    { N_("&Keybar visible"), &mc_global.keybar_visible, NULL },
+    { N_("H&intbar visible"), &mc_global.message_visible, NULL },
+    { N_("&XTerm window title"), &xterm_title, NULL },
+    { N_("&Show free space"), &free_space, NULL }
+    /* *INDENT-ON* */
+};
+
+static const char *output_lines_label = NULL;
+static int output_lines_label_len;
+
+static WButton *bleft_widget, *bright_widget;
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+/* don't use max() macro to avoid double call of str_term_width1() in widget width calculation */
+#undef max
+
+static int
+max (int a, int b)
+{
+    return a > b ? a : b;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+check_split (panels_layout_t * layout)
+{
+    if (layout->horizontal_split)
+    {
+        if (layout->horizontal_equal)
+            layout->top_panel_size = height / 2;
+        else if (layout->top_panel_size < MINHEIGHT)
+            layout->top_panel_size = MINHEIGHT;
+        else if (layout->top_panel_size > height - MINHEIGHT)
+            layout->top_panel_size = height - MINHEIGHT;
+    }
+    else
+    {
+        int md_cols = CONST_WIDGET (filemanager)->rect.cols;
+
+        if (layout->vertical_equal)
+            layout->left_panel_size = md_cols / 2;
+        else if (layout->left_panel_size < MINWIDTH)
+            layout->left_panel_size = MINWIDTH;
+        else if (layout->left_panel_size > md_cols - MINWIDTH)
+            layout->left_panel_size = md_cols - MINWIDTH;
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+update_split (const WDialog * h)
+{
+    /* Check split has to be done before testing if it changed, since
+       it can change due to calling check_split() as well */
+    check_split (&panels_layout);
+
+    if (panels_layout.horizontal_split)
+        check_options[0].widget->state = panels_layout.horizontal_equal;
+    else
+        check_options[0].widget->state = panels_layout.vertical_equal;
+    widget_draw (WIDGET (check_options[0].widget));
+
+    tty_setcolor (check_options[0].widget->state ? DISABLED_COLOR : COLOR_NORMAL);
+
+    widget_gotoyx (h, 6, 5);
+    if (panels_layout.horizontal_split)
+        tty_printf ("%03d", panels_layout.top_panel_size);
+    else
+        tty_printf ("%03d", panels_layout.left_panel_size);
+
+    widget_gotoyx (h, 6, 17);
+    if (panels_layout.horizontal_split)
+        tty_printf ("%03d", height - panels_layout.top_panel_size);
+    else
+        tty_printf ("%03d", CONST_WIDGET (filemanager)->rect.cols - panels_layout.left_panel_size);
+
+    widget_gotoyx (h, 6, 12);
+    tty_print_char ('=');
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+b_left_right_cback (WButton * button, int action)
+{
+    (void) action;
+
+    if (button == bright_widget)
+    {
+        if (panels_layout.horizontal_split)
+            panels_layout.top_panel_size++;
+        else
+            panels_layout.left_panel_size++;
+    }
+    else
+    {
+        if (panels_layout.horizontal_split)
+            panels_layout.top_panel_size--;
+        else
+            panels_layout.left_panel_size--;
+    }
+
+    update_split (DIALOG (WIDGET (button)->owner));
+    layout_change ();
+    do_refresh ();
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+bplus_cback (WButton * button, int action)
+{
+    (void) button;
+    (void) action;
+
+    if (_output_lines < 99)
+        _output_lines++;
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+bminus_cback (WButton * button, int action)
+{
+    (void) button;
+    (void) action;
+
+    if (_output_lines > 0)
+        _output_lines--;
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+layout_bg_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
+{
+    switch (msg)
+    {
+    case MSG_DRAW:
+        frame_callback (w, NULL, MSG_DRAW, 0, NULL);
+
+        old_layout.output_lines = -1;
+
+        update_split (DIALOG (w->owner));
+
+        if (old_layout.output_lines != _output_lines)
+        {
+            old_layout.output_lines = _output_lines;
+            tty_setcolor (mc_global.tty.console_flag != '\0' ? COLOR_NORMAL : DISABLED_COLOR);
+            widget_gotoyx (w, 9, 5);
+            tty_print_string (output_lines_label);
+            widget_gotoyx (w, 9, 5 + 3 + output_lines_label_len);
+            tty_printf ("%02d", _output_lines);
+        }
+        return MSG_HANDLED;
+
+    default:
+        return frame_callback (w, sender, msg, parm, data);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+layout_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
+{
+    WDialog *h = DIALOG (w);
+
+    switch (msg)
+    {
+    case MSG_POST_KEY:
+        {
+            const Widget *mw = CONST_WIDGET (filemanager);
+            gboolean _menubar_visible, _command_prompt, _keybar_visible, _message_visible;
+
+            _menubar_visible = check_options[1].widget->state;
+            _command_prompt = check_options[2].widget->state;
+            _keybar_visible = check_options[3].widget->state;
+            _message_visible = check_options[4].widget->state;
+
+            if (mc_global.tty.console_flag == '\0')
+                height =
+                    mw->rect.lines - (_keybar_visible ? 1 : 0) - (_command_prompt ? 1 : 0) -
+                    (_menubar_visible ? 1 : 0) - _output_lines - (_message_visible ? 1 : 0);
+            else
+            {
+                int minimum;
+
+                if (_output_lines < 0)
+                    _output_lines = 0;
+                height =
+                    mw->rect.lines - (_keybar_visible ? 1 : 0) - (_command_prompt ? 1 : 0) -
+                    (_menubar_visible ? 1 : 0) - _output_lines - (_message_visible ? 1 : 0);
+                minimum = MINHEIGHT * (1 + (panels_layout.horizontal_split ? 1 : 0));
+                if (height < minimum)
+                {
+                    _output_lines -= minimum - height;
+                    height = minimum;
+                }
+            }
+
+            if (old_layout.output_lines != _output_lines)
+            {
+                old_layout.output_lines = _output_lines;
+                tty_setcolor (mc_global.tty.console_flag != '\0' ? COLOR_NORMAL : DISABLED_COLOR);
+                widget_gotoyx (h, 9, 5 + 3 + output_lines_label_len);
+                tty_printf ("%02d", _output_lines);
+            }
+        }
+        return MSG_HANDLED;
+
+    case MSG_NOTIFY:
+        if (sender == WIDGET (radio_widget))
+        {
+            if ((panels_layout.horizontal_split ? 1 : 0) == radio_widget->sel)
+                update_split (h);
+            else
+            {
+                int eq;
+
+                panels_layout.horizontal_split = radio_widget->sel != 0;
+
+                if (panels_layout.horizontal_split)
+                {
+                    eq = panels_layout.horizontal_equal;
+                    if (eq)
+                        panels_layout.top_panel_size = height / 2;
+                }
+                else
+                {
+                    eq = panels_layout.vertical_equal;
+                    if (eq)
+                        panels_layout.left_panel_size = CONST_WIDGET (filemanager)->rect.cols / 2;
+                }
+
+                widget_disable (WIDGET (bleft_widget), eq);
+                widget_disable (WIDGET (bright_widget), eq);
+
+                update_split (h);
+                layout_change ();
+                do_refresh ();
+            }
+
+            return MSG_HANDLED;
+        }
+
+        if (sender == WIDGET (check_options[0].widget))
+        {
+            gboolean eq;
+
+            if (panels_layout.horizontal_split)
+            {
+                panels_layout.horizontal_equal = check_options[0].widget->state;
+                eq = panels_layout.horizontal_equal;
+            }
+            else
+            {
+                panels_layout.vertical_equal = check_options[0].widget->state;
+                eq = panels_layout.vertical_equal;
+            }
+
+            widget_disable (WIDGET (bleft_widget), eq);
+            widget_disable (WIDGET (bright_widget), eq);
+
+            update_split (h);
+            layout_change ();
+            do_refresh ();
+
+            return MSG_HANDLED;
+        }
+
+        {
+            gboolean ok = TRUE;
+
+            if (sender == WIDGET (check_options[1].widget))
+                menubar_visible = check_options[1].widget->state;
+            else if (sender == WIDGET (check_options[2].widget))
+                command_prompt = check_options[2].widget->state;
+            else if (sender == WIDGET (check_options[3].widget))
+                mc_global.keybar_visible = check_options[3].widget->state;
+            else if (sender == WIDGET (check_options[4].widget))
+                mc_global.message_visible = check_options[4].widget->state;
+            else if (sender == WIDGET (check_options[5].widget))
+                xterm_title = check_options[5].widget->state;
+            else if (sender == WIDGET (check_options[6].widget))
+                free_space = check_options[6].widget->state;
+            else
+                ok = FALSE;
+
+            if (ok)
+            {
+                update_split (h);
+                layout_change ();
+                do_refresh ();
+                return MSG_HANDLED;
+            }
+        }
+
+        return MSG_NOT_HANDLED;
+
+    default:
+        return dlg_default_callback (w, sender, msg, parm, data);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static WDialog *
+layout_dlg_create (void)
+{
+    WDialog *layout_dlg;
+    WGroup *g;
+    int l1 = 0, width;
+    int b1, b2, b;
+    size_t i;
+
+    const char *title1 = N_("Panel split");
+    const char *title2 = N_("Console output");
+    const char *title3 = N_("Other options");
+
+    const char *s_split_direction[2] = {
+        N_("&Vertical"),
+        N_("&Horizontal")
+    };
+
+    const char *ok_button = N_("&OK");
+    const char *cancel_button = N_("&Cancel");
+
+    output_lines_label = _("Output lines:");
+
+#ifdef ENABLE_NLS
+    {
+        static gboolean i18n = FALSE;
+
+        title1 = _(title1);
+        title2 = _(title2);
+        title3 = _(title3);
+
+        i = G_N_ELEMENTS (s_split_direction);
+        while (i-- != 0)
+            s_split_direction[i] = _(s_split_direction[i]);
+
+        if (!i18n)
+        {
+            for (i = 0; i < (size_t) LAYOUT_OPTIONS_COUNT; i++)
+                check_options[i].text = _(check_options[i].text);
+            i18n = TRUE;
+        }
+
+        ok_button = _(ok_button);
+        cancel_button = _(cancel_button);
+    }
+#endif
+
+    /* radiobuttons */
+    i = G_N_ELEMENTS (s_split_direction);
+    while (i-- != 0)
+        l1 = max (l1, str_term_width1 (s_split_direction[i]) + 7);
+    /* checkboxes */
+    for (i = 0; i < (size_t) LAYOUT_OPTIONS_COUNT; i++)
+        l1 = max (l1, str_term_width1 (check_options[i].text) + 7);
+    /* groupboxes */
+    l1 = max (l1, str_term_width1 (title1) + 4);
+    l1 = max (l1, str_term_width1 (title2) + 4);
+    l1 = max (l1, str_term_width1 (title3) + 4);
+    /* label + "+"/"-" buttons */
+    output_lines_label_len = str_term_width1 (output_lines_label);
+    l1 = max (l1, output_lines_label_len + 12);
+    /* buttons */
+    b1 = str_term_width1 (ok_button) + 5;       /* default button */
+    b2 = str_term_width1 (cancel_button) + 3;
+    b = b1 + b2 + 1;
+    /* dialog width */
+    width = max (l1 * 2 + 7, b);
+
+    layout_dlg =
+        dlg_create (TRUE, 0, 0, 15, width, WPOS_CENTER, FALSE, dialog_colors, layout_callback, NULL,
+                    "[Layout]", _("Layout"));
+    g = GROUP (layout_dlg);
+
+    /* draw background */
+    layout_dlg->bg->callback = layout_bg_callback;
+
+#define XTRACT(i) (*check_options[i].variable != 0), check_options[i].text
+
+    /* "Panel split" groupbox */
+    group_add_widget (g, groupbox_new (2, 3, 6, l1, title1));
+
+    radio_widget = radio_new (3, 5, 2, s_split_direction);
+    radio_widget->sel = panels_layout.horizontal_split ? 1 : 0;
+    group_add_widget (g, radio_widget);
+
+    check_options[0].widget = check_new (5, 5, XTRACT (0));
+    group_add_widget (g, check_options[0].widget);
+
+    equal_split = panels_layout.horizontal_split ?
+        panels_layout.horizontal_equal : panels_layout.vertical_equal;
+
+    bleft_widget = button_new (6, 8, B_2LEFT, NARROW_BUTTON, "&<", b_left_right_cback);
+    widget_disable (WIDGET (bleft_widget), equal_split);
+    group_add_widget (g, bleft_widget);
+
+    bright_widget = button_new (6, 14, B_2RIGHT, NARROW_BUTTON, "&>", b_left_right_cback);
+    widget_disable (WIDGET (bright_widget), equal_split);
+    group_add_widget (g, bright_widget);
+
+    /* "Console output" groupbox */
+    {
+        widget_state_t disabled;
+        Widget *w;
+
+        disabled = mc_global.tty.console_flag != '\0' ? 0 : WST_DISABLED;
+
+        w = WIDGET (groupbox_new (8, 3, 3, l1, title2));
+        w->state |= disabled;
+        group_add_widget (g, w);
+
+        w = WIDGET (button_new (9, output_lines_label_len + 5, B_PLUS,
+                                NARROW_BUTTON, "&+", bplus_cback));
+        w->state |= disabled;
+        group_add_widget (g, w);
+
+        w = WIDGET (button_new (9, output_lines_label_len + 5 + 5, B_MINUS,
+                                NARROW_BUTTON, "&-", bminus_cback));
+        w->state |= disabled;
+        group_add_widget (g, w);
+    }
+
+    /* "Other options" groupbox */
+    group_add_widget (g, groupbox_new (2, 4 + l1, 9, l1, title3));
+
+    for (i = 1; i < (size_t) LAYOUT_OPTIONS_COUNT; i++)
+    {
+        check_options[i].widget = check_new (i + 2, 6 + l1, XTRACT (i));
+        group_add_widget (g, check_options[i].widget);
+    }
+
+#undef XTRACT
+
+    group_add_widget (g, hline_new (11, -1, -1));
+    /* buttons */
+    group_add_widget (g, button_new (12, (width - b) / 2, B_ENTER, DEFPUSH_BUTTON, ok_button, 0));
+    group_add_widget (g,
+                      button_new (12, (width - b) / 2 + b1 + 1, B_CANCEL, NORMAL_BUTTON,
+                                  cancel_button, 0));
+
+    widget_select (WIDGET (radio_widget));
+
+    return layout_dlg;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+panel_do_cols (int idx)
+{
+    if (get_panel_type (idx) == view_listing)
+        set_panel_formats (PANEL (panels[idx].widget));
+    else
+        panel_update_cols (panels[idx].widget, frame_half);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Save current list_view widget directory into panel */
+
+static Widget *
+restore_into_right_dir_panel (int idx, gboolean last_was_panel, int y, int x, int lines, int cols)
+{
+    WPanel *new_widget;
+    const char *p_name;
+
+    p_name = get_nth_panel_name (idx);
+
+    if (last_was_panel)
+    {
+        vfs_path_t *saved_dir_vpath;
+
+        saved_dir_vpath = vfs_path_from_str (panels[idx].last_saved_dir);
+        new_widget = panel_sized_with_dir_new (p_name, y, x, lines, cols, saved_dir_vpath);
+        vfs_path_free (saved_dir_vpath, TRUE);
+    }
+    else
+        new_widget = panel_sized_new (p_name, y, x, lines, cols);
+
+    return WIDGET (new_widget);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+layout_save (void)
+{
+    old_layout.menubar_visible = menubar_visible;
+    old_layout.command_prompt = command_prompt;
+    old_layout.keybar_visible = mc_global.keybar_visible;
+    old_layout.message_visible = mc_global.message_visible;
+    old_layout.xterm_title = xterm_title;
+    old_layout.free_space = free_space;
+    old_layout.output_lines = -1;
+
+    _output_lines = output_lines;
+
+    old_panels_layout = panels_layout;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+layout_restore (void)
+{
+    menubar_visible = old_layout.menubar_visible;
+    command_prompt = old_layout.command_prompt;
+    mc_global.keybar_visible = old_layout.keybar_visible;
+    mc_global.message_visible = old_layout.message_visible;
+    xterm_title = old_layout.xterm_title;
+    free_space = old_layout.free_space;
+    output_lines = old_layout.output_lines;
+
+    panels_layout = old_panels_layout;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+void
+layout_change (void)
+{
+    setup_panels ();
+    /* update the main menu, because perhaps there was a change in the way
+       how the panel are split (horizontal/vertical),
+       and a change of menu visibility. */
+    update_menu ();
+    load_hint (TRUE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+layout_box (void)
+{
+    WDialog *layout_dlg;
+
+    layout_save ();
+
+    layout_dlg = layout_dlg_create ();
+
+    if (dlg_run (layout_dlg) == B_ENTER)
+    {
+        size_t i;
+
+        for (i = 0; i < (size_t) LAYOUT_OPTIONS_COUNT; i++)
+            if (check_options[i].widget != NULL)
+                *check_options[i].variable = check_options[i].widget->state;
+
+        output_lines = _output_lines;
+    }
+    else
+        layout_restore ();
+
+    widget_destroy (WIDGET (layout_dlg));
+    layout_change ();
+    do_refresh ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+panel_update_cols (Widget * widget, panel_display_t frame_size)
+{
+    const Widget *mw = CONST_WIDGET (filemanager);
+    int cols, x;
+
+    /* don't touch panel if it is not in dialog yet */
+    /* if panel is not in dialog it is not in widgets list
+       and cannot be compared with get_panel_widget() result */
+    if (widget->owner == NULL)
+        return;
+
+    if (panels_layout.horizontal_split)
+    {
+        widget->rect.cols = mw->rect.cols;
+        return;
+    }
+
+    if (frame_size == frame_full)
+    {
+        cols = mw->rect.cols;
+        x = mw->rect.x;
+    }
+    else if (widget == get_panel_widget (0))
+    {
+        cols = panels_layout.left_panel_size;
+        x = mw->rect.x;
+    }
+    else
+    {
+        cols = mw->rect.cols - panels_layout.left_panel_size;
+        x = mw->rect.x + panels_layout.left_panel_size;
+    }
+
+    widget->rect.cols = cols;
+    widget->rect.x = x;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+setup_panels (void)
+{
+    /* File manager screen layout:
+     *
+     * +---------------------------------------------------------------+
+     * | Menu bar                                                      |
+     * +-------------------------------+-------------------------------+
+     * |                               |                               |
+     * |                               |                               |
+     * |                               |                               |
+     * |                               |                               |
+     * |         Left panel            |         Right panel           |
+     * |                               |                               |
+     * |                               |                               |
+     * |                               |                               |
+     * |                               |                               |
+     * +-------------------------------+-------------------------------+
+     * | Hint (message) bar                                            |
+     * +---------------------------------------------------------------+
+     * |                                                               |
+     * |                        Console content                        |
+     * |                                                               |
+     * +--------+------------------------------------------------------+
+     * | Prompt | Command line                                         |
+     * | Key (button) bar                                              |
+     * +--------+------------------------------------------------------+
+     */
+
+    Widget *mw = WIDGET (filemanager);
+    const WRect *r = &CONST_WIDGET (mw)->rect;
+    int start_y;
+    gboolean active;
+    WRect rb;
+
+    active = widget_get_state (mw, WST_ACTIVE);
+
+    /* lock the group to avoid many redraws */
+    if (active)
+        widget_set_state (mw, WST_SUSPENDED, TRUE);
+
+    /* initial height of panels */
+    height =
+        r->lines - (menubar_visible ? 1 : 0) - (mc_global.message_visible ? 1 : 0) -
+        (command_prompt ? 1 : 0) - (mc_global.keybar_visible ? 1 : 0);
+
+    if (mc_global.tty.console_flag != '\0')
+    {
+        int minimum;
+
+        if (output_lines < 0)
+            output_lines = 0;
+        else
+            height -= output_lines;
+        minimum = MINHEIGHT * (1 + (panels_layout.horizontal_split ? 1 : 0));
+        if (height < minimum)
+        {
+            output_lines -= minimum - height;
+            height = minimum;
+        }
+    }
+
+    rb = *r;
+    rb.lines = 1;
+    widget_set_size_rect (WIDGET (the_menubar), &rb);
+    widget_set_visibility (WIDGET (the_menubar), menubar_visible);
+
+    check_split (&panels_layout);
+    start_y = r->y + (menubar_visible ? 1 : 0);
+
+    /* update columns first... */
+    panel_do_cols (0);
+    panel_do_cols (1);
+
+    /* ...then rows and origin */
+    if (panels_layout.horizontal_split)
+    {
+        widget_set_size (panels[0].widget, start_y, r->x, panels_layout.top_panel_size,
+                         panels[0].widget->rect.cols);
+        widget_set_size (panels[1].widget, start_y + panels_layout.top_panel_size, r->x,
+                         height - panels_layout.top_panel_size, panels[1].widget->rect.cols);
+    }
+    else
+    {
+        widget_set_size (panels[0].widget, start_y, r->x, height, panels[0].widget->rect.cols);
+        widget_set_size (panels[1].widget, start_y, panels[1].widget->rect.x, height,
+                         panels[1].widget->rect.cols);
+    }
+
+    widget_set_size (WIDGET (the_hint), height + start_y, r->x, 1, r->cols);
+    widget_set_visibility (WIDGET (the_hint), mc_global.message_visible);
+
+    /* Output window */
+    if (mc_global.tty.console_flag != '\0' && output_lines != 0)
+    {
+        unsigned char end_line;
+
+        end_line = r->lines - (mc_global.keybar_visible ? 1 : 0) - 1;
+        output_start_y = end_line - (command_prompt ? 1 : 0) - output_lines + 1;
+        show_console_contents (output_start_y, end_line - output_lines, end_line);
+    }
+
+    if (command_prompt)
+    {
+#ifdef ENABLE_SUBSHELL
+        if (!mc_global.tty.use_subshell || !do_load_prompt ())
+#endif
+            setup_cmdline ();
+    }
+    else
+    {
+        /* make invisible */
+        widget_hide (WIDGET (cmdline));
+        widget_hide (WIDGET (the_prompt));
+    }
+
+    rb = *r;
+    rb.y = r->lines - 1;
+    rb.lines = 1;
+    widget_set_size_rect (WIDGET (the_bar), &rb);
+    widget_set_visibility (WIDGET (the_bar), mc_global.keybar_visible);
+
+    update_xterm_title_path ();
+
+    /* unlock */
+    if (active)
+    {
+        widget_set_state (mw, WST_ACTIVE, TRUE);
+        widget_draw (mw);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+panels_split_equal (void)
+{
+    if (panels_layout.horizontal_split)
+        panels_layout.horizontal_equal = TRUE;
+    else
+        panels_layout.vertical_equal = TRUE;
+
+    layout_change ();
+    do_refresh ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+panels_split_more (void)
+{
+    if (panels_layout.horizontal_split)
+    {
+        panels_layout.horizontal_equal = FALSE;
+        panels_layout.top_panel_size++;
+    }
+    else
+    {
+        panels_layout.vertical_equal = FALSE;
+        panels_layout.left_panel_size++;
+    }
+
+    layout_change ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+panels_split_less (void)
+{
+    if (panels_layout.horizontal_split)
+    {
+        panels_layout.horizontal_equal = FALSE;
+        panels_layout.top_panel_size--;
+    }
+    else
+    {
+        panels_layout.vertical_equal = FALSE;
+        panels_layout.left_panel_size--;
+    }
+
+    layout_change ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+setup_cmdline (void)
+{
+    const Widget *mw = CONST_WIDGET (filemanager);
+    const WRect *r = &mw->rect;
+    int prompt_width;
+    int y;
+    char *tmp_prompt = (char *) mc_prompt;
+
+    if (!command_prompt)
+        return;
+
+#ifdef ENABLE_SUBSHELL
+    if (mc_global.tty.use_subshell)
+    {
+        /* Workaround: avoid crash on FreeBSD (see ticket #4213 for details)  */
+        if (subshell_prompt != NULL)
+            tmp_prompt = g_string_free (subshell_prompt, FALSE);
+        else
+            tmp_prompt = g_strdup (mc_prompt);
+        (void) strip_ctrl_codes (tmp_prompt);
+    }
+#endif
+
+    prompt_width = str_term_width1 (tmp_prompt);
+
+    /* Check for prompts too big */
+    if (r->cols > 8 && prompt_width > r->cols - 8)
+    {
+        int prompt_len;
+
+        prompt_width = r->cols - 8;
+        prompt_len = str_offset_to_pos (tmp_prompt, prompt_width);
+        tmp_prompt[prompt_len] = '\0';
+    }
+
+#ifdef ENABLE_SUBSHELL
+    if (mc_global.tty.use_subshell)
+    {
+        subshell_prompt = g_string_new (tmp_prompt);
+        g_free (tmp_prompt);
+        mc_prompt = subshell_prompt->str;
+    }
+#endif
+
+    y = r->lines - 1 - (mc_global.keybar_visible ? 1 : 0);
+
+    widget_set_size (WIDGET (the_prompt), y, r->x, 1, prompt_width);
+    label_set_text (the_prompt, mc_prompt);
+    widget_set_size (WIDGET (cmdline), y, r->x + prompt_width, 1, r->cols - prompt_width);
+
+    widget_show (WIDGET (the_prompt));
+    widget_show (WIDGET (cmdline));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+use_dash (gboolean 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
+rotate_dash (gboolean show)
+{
+    static gint64 timestamp = 0;
+    /* update with 10 FPS rate */
+    static const gint64 delay = G_USEC_PER_SEC / 10;
+
+    const Widget *w = CONST_WIDGET (filemanager);
+
+    if (!nice_rotating_dash || (ok_to_refresh <= 0))
+        return;
+
+    if (show && !mc_time_elapsed (&timestamp, delay))
+        return;
+
+    widget_gotoyx (w, menubar_visible ? 1 : 0, w->rect.cols - 1);
+    tty_setcolor (NORMAL_COLOR);
+
+    if (!show)
+        tty_print_alt_char (ACS_URCORNER, FALSE);
+    else
+    {
+        static const char rotating_dash[4] = "|/-\\";
+        static size_t pos = 0;
+
+        tty_print_char (rotating_dash[pos]);
+        pos = (pos + 1) % sizeof (rotating_dash);
+    }
+
+    mc_refresh ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+const char *
+get_nth_panel_name (int num)
+{
+    if (num == 0)
+        return "New Left Panel";
+
+    if (num == 1)
+        return "New Right Panel";
+
+    {
+        static char buffer[BUF_SMALL];
+
+        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
+create_panel (int num, panel_view_mode_t type)
+{
+    WRect r = { 0, 0, 0, 0 };
+    unsigned int the_other = 0; /* Index to the other panel */
+    const char *file_name = NULL;       /* For Quick view */
+    Widget *new_widget = NULL, *old_widget = NULL;
+    panel_view_mode_t old_type = view_listing;
+    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 != NULL)
+    {
+        Widget *w = panels[num].widget;
+        WPanel *panel = PANEL (w);
+
+        r = w->rect;
+        old_widget = w;
+        old_type = panels[num].type;
+
+        if (old_type == view_listing && panel->frame_size == frame_full && type != view_listing)
+        {
+            int md_cols = CONST_WIDGET (filemanager)->rect.cols;
+
+            if (panels_layout.horizontal_split)
+            {
+                r.cols = md_cols;
+                r.x = 0;
+            }
+            else
+            {
+                r.cols = md_cols - panels_layout.left_panel_size;
+                if (num == 1)
+                    r.x = panels_layout.left_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)
+        panels[num].last_saved_dir = vfs_get_cwd ();
+
+    switch (type)
+    {
+    case view_nothing:
+    case view_listing:
+        {
+            gboolean last_was_panel;
+
+            last_was_panel = old_widget != NULL && get_panel_type (num) != view_listing;
+            new_widget =
+                restore_into_right_dir_panel (num, last_was_panel, r.y, r.x, r.lines, r.cols);
+            break;
+        }
+
+    case view_info:
+        new_widget = WIDGET (info_new (r.y, r.x, r.lines, r.cols));
+        break;
+
+    case view_tree:
+        new_widget = WIDGET (tree_new (r.y, r.x, r.lines, r.cols, TRUE));
+        break;
+
+    case view_quick:
+        new_widget = WIDGET (mcview_new (r.y, r.x, r.lines, r.cols, TRUE));
+        the_other_panel = PANEL (panels[the_other].widget);
+        if (the_other_panel != NULL)
+            file_name = panel_current_entry (the_other_panel)->fname->str;
+        else
+            file_name = "";
+
+        mcview_load ((WView *) new_widget, 0, file_name, 0, 0, 0);
+        break;
+
+    default:
+        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 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 (old_widget != NULL)
+    {
+        if (old_type == view_listing)
+        {
+            /* save and write directory history of panel
+             * ... and other histories of filemanager  */
+            dlg_save_history (filemanager);
+        }
+
+        widget_replace (old_widget, new_widget);
+    }
+
+    if (type == view_listing)
+    {
+        WPanel *panel = PANEL (new_widget);
+
+        /* if existing panel changed type to view_listing, then load history */
+        if (old_widget != NULL)
+        {
+            ev_history_load_save_t event_data = { NULL, new_widget };
+
+            mc_event_raise (filemanager->event_group, MCEVENT_HISTORY_LOAD, &event_data);
+        }
+
+        if (num == 0)
+            left_panel = panel;
+        else
+            right_panel = panel;
+
+        /* forced update format after set new sizes */
+        set_panel_formats (panel);
+    }
+
+    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 menu 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 == PANEL (old_widget)))
+        current_panel = num == 0 ? right_panel : left_panel;
+
+    g_free (old_widget);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** 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 (void)
+{
+    WPanel *panel1, *panel2;
+    Widget *tmp_widget;
+
+    panel1 = PANEL (panels[0].widget);
+    panel2 = PANEL (panels[1].widget);
+
+    if (panels[0].type == view_listing && panels[1].type == view_listing &&
+        !mc_config_get_bool (mc_global.main_config, CONFIG_PANELS_SECTION, "simple_swap", FALSE))
+    {
+        WPanel panel;
+
+#define panelswap(x) panel.x = panel1->x; panel1->x = panel2->x; panel2->x = panel.x;
+        /* Change content and related stuff */
+        panelswap (dir);
+        panelswap (active);
+        panelswap (cwd_vpath);
+        panelswap (lwd_vpath);
+        panelswap (marked);
+        panelswap (dirs_marked);
+        panelswap (total);
+        panelswap (top);
+        panelswap (current);
+        panelswap (is_panelized);
+        panelswap (panelized_descr);
+        panelswap (dir_stat);
+#undef panelswap
+
+        panel1->quick_search.active = FALSE;
+        panel2->quick_search.active = FALSE;
+
+        if (current_panel == panel1)
+            current_panel = panel2;
+        else
+            current_panel = panel1;
+
+        /* if sort options are different -> resort panels */
+        if (memcmp (&panel1->sort_info, &panel2->sort_info, sizeof (dir_sort_options_t)) != 0)
+        {
+            panel_re_sort (other_panel);
+            panel_re_sort (current_panel);
+        }
+
+        if (widget_is_active (panels[0].widget))
+            widget_select (panels[1].widget);
+        else if (widget_is_active (panels[1].widget))
+            widget_select (panels[0].widget);
+    }
+    else
+    {
+        WPanel *tmp_panel;
+        WRect r;
+        int tmp_type;
+
+        tmp_panel = right_panel;
+        right_panel = left_panel;
+        left_panel = tmp_panel;
+
+        if (panels[0].type == view_listing)
+        {
+            if (strcmp (panel1->name, get_nth_panel_name (0)) == 0)
+            {
+                g_free (panel1->name);
+                panel1->name = g_strdup (get_nth_panel_name (1));
+            }
+        }
+        if (panels[1].type == view_listing)
+        {
+            if (strcmp (panel2->name, get_nth_panel_name (1)) == 0)
+            {
+                g_free (panel2->name);
+                panel2->name = g_strdup (get_nth_panel_name (0));
+            }
+        }
+
+        r = panels[0].widget->rect;
+        panels[0].widget->rect = panels[1].widget->rect;
+        panels[1].widget->rect = r;
+
+        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;
+
+        /* force update formats because of possible changed sizes */
+        if (panels[0].type == view_listing)
+            set_panel_formats (PANEL (panels[0].widget));
+        if (panels[1].type == view_listing)
+            set_panel_formats (PANEL (panels[1].widget));
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+panel_view_mode_t
+get_panel_type (int idx)
+{
+    return panels[idx].type;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+Widget *
+get_panel_widget (int idx)
+{
+    return panels[idx].widget;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+int
+get_current_index (void)
+{
+    return (panels[0].widget == WIDGET (current_panel) ? 0 : 1);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+int
+get_other_index (void)
+{
+    return (get_current_index () == 0 ? 1 : 0);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+WPanel *
+get_other_panel (void)
+{
+    return PANEL (get_panel_widget (get_other_index ()));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Returns the view type for the current panel/view */
+
+panel_view_mode_t
+get_current_type (void)
+{
+    return (panels[0].widget == WIDGET (current_panel) ? panels[0].type : panels[1].type);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Returns the view type of the unselected panel */
+
+panel_view_mode_t
+get_other_type (void)
+{
+    return (panels[0].widget == WIDGET (current_panel) ? panels[1].type : panels[0].type);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Save current list_view widget directory into panel */
+
+void
+save_panel_dir (int idx)
+{
+    panel_view_mode_t type;
+
+    type = get_panel_type (idx);
+    if (type == view_listing)
+    {
+        WPanel *p;
+
+        p = PANEL (get_panel_widget (idx));
+        if (p != NULL)
+        {
+            g_free (panels[idx].last_saved_dir);        /* last path no needed */
+            /* Because path can be nonlocal */
+            panels[idx].last_saved_dir = g_strdup (vfs_path_as_str (p->cwd_vpath));
+        }
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Return working dir, if it's view_listing - cwd,
+   but for other types - last_saved_dir */
+
+char *
+get_panel_dir_for (const WPanel * widget)
+{
+    int i;
+
+    for (i = 0; i < MAX_VIEWS; i++)
+        if (PANEL (get_panel_widget (i)) == widget)
+            break;
+
+    if (i >= MAX_VIEWS)
+        return g_strdup (".");
+
+    if (get_panel_type (i) == view_listing)
+    {
+        vfs_path_t *cwd_vpath;
+
+        cwd_vpath = PANEL (get_panel_widget (i))->cwd_vpath;
+        return g_strdup (vfs_path_as_str (cwd_vpath));
+    }
+
+    return g_strdup (panels[i].last_saved_dir);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+#ifdef ENABLE_SUBSHELL
+gboolean
+do_load_prompt (void)
+{
+    gboolean ret = FALSE;
+
+    if (!read_subshell_prompt ())
+        return ret;
+
+    /* Don't actually change the prompt if it's invisible */
+    if (top_dlg != NULL && DIALOG (top_dlg->data) == filemanager && command_prompt)
+    {
+        setup_cmdline ();
+
+        /* since the prompt has changed, and we are called from one of the
+         * tty_get_event channels, the prompt updating does not take place
+         * automatically: force a cursor update and a screen refresh
+         */
+        widget_update_cursor (WIDGET (filemanager));
+        mc_refresh ();
+        ret = TRUE;
+    }
+    update_subshell_prompt = TRUE;
+    return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+int
+load_prompt (int fd, void *unused)
+{
+    (void) fd;
+    (void) unused;
+
+    if (should_read_new_subshell_prompt)
+        do_load_prompt ();
+    else
+        flush_subshell (0, QUIETLY);
+
+    return 0;
+}
+#endif /* ENABLE_SUBSHELL */
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+title_path_prepare (char **path, char **login)
+{
+    char host[BUF_TINY];
+    struct passwd *pw = NULL;
+    int res = 0;
+
+    *path =
+        vfs_path_to_str_flags (current_panel->cwd_vpath, 0, VPF_STRIP_HOME | VPF_STRIP_PASSWORD);
+
+    res = gethostname (host, sizeof (host));
+    if (res != 0)
+        host[0] = '\0';
+    else
+        host[sizeof (host) - 1] = '\0';
+
+    pw = getpwuid (getuid ());
+    if (pw != NULL)
+        *login = g_strdup_printf ("%s@%s", pw->pw_name, host);
+    else
+        *login = g_strdup (host);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/** Show current directory in the xterm title */
+void
+update_xterm_title_path (void)
+{
+    if (mc_global.tty.xterm_flag && xterm_title)
+    {
+        char *p;
+        char *path;
+        char *login;
+
+        title_path_prepare (&path, &login);
+
+        p = g_strdup_printf ("mc [%s]:%s", login, path);
+        g_free (login);
+        g_free (path);
+
+        fprintf (stdout, "\33]0;%s\7", str_term_form (p));
+        g_free (p);
+
+        if (!mc_global.tty.alternate_plus_minus)
+            numeric_keypad_mode ();
+        (void) fflush (stdout);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */