From: Christian Heller <c.heller@plomlompom.de>
Date: Sat, 25 Jan 2014 06:13:21 +0000 (+0100)
Subject: Merged Win and WinConf structs, windows.h and wincontrol.h. Also lots of refactoring... 
X-Git-Tag: tce~867
X-Git-Url: https://plomlompom.com/repos/%7B%7Bprefix%7D%7D/static/task?a=commitdiff_plain;h=024b404c0db59dc6651b1c8f3d379c2797654fdf;p=plomrogue

Merged Win and WinConf structs, windows.h and wincontrol.h. Also lots of refactoring on the way.
---

diff --git a/src/client/control.c b/src/client/control.c
index 6059096..538f52c 100644
--- a/src/client/control.c
+++ b/src/client/control.c
@@ -12,11 +12,10 @@
 #include "misc.h" /* reload_interface_conf(), save_interface_conf(),
                    * nav_inventory()
                    */
-#include "wincontrol.h" /* struct WinConf, toggle_window(), toggle_winconfig(),
-                         * scroll_pad(), get_winconf_by_win(),
-                         * growshrink_active_window(), toggle_win_size_type()
-                         */
-#include "windows.h" /* for cycle_active_win(), shift_active_win() */
+#include "windows.h" /* get_win_byid(), shift_active_win(), resize_active_win(),
+                      * toggle_win_size_type(), toggle_window(),
+                      * cycle_active_win(), scroll_v_screen()
+                      */
 #include "world.h" /* for global world */
 
 
@@ -90,8 +89,8 @@ static uint8_t try_client_commands(struct Command * command)
             || try_1args(command, "inv_d", nav_inventory, 'd')
             || try_1args(command, "cyc_win_f", cycle_active_win, 'f')
             || try_1args(command, "cyc_win_b", cycle_active_win, 'b')
-            || try_1args(command, "scrl_r", scroll_pad, '+')
-            || try_1args(command, "scrl_l", scroll_pad, '-')
+            || try_1args(command, "scrl_r", scroll_v_screen, '+')
+            || try_1args(command, "scrl_l", scroll_v_screen, '-')
             || try_1args(command, "to_a_keywin", toggle_window, 'k')
             || try_1args(command, "to_g_keywin", toggle_window, '0')
             || try_1args(command, "to_wg_keywin", toggle_window, '1')
@@ -101,10 +100,10 @@ static uint8_t try_client_commands(struct Command * command)
             || try_1args(command, "to_inv", toggle_window, 'c')
             || try_1args(command, "to_logwin", toggle_window, 'l')
             || try_0args(command, "winconf", toggle_winconfig)
-            || try_1args(command, "grow_h", growshrink_active_window, '*')
-            || try_1args(command, "shri_h", growshrink_active_window, '_')
-            || try_1args(command, "grow_v", growshrink_active_window, '+')
-            || try_1args(command, "shri_v", growshrink_active_window, '-')
+            || try_1args(command, "grow_h", resize_active_win, '*')
+            || try_1args(command, "shri_h", resize_active_win, '_')
+            || try_1args(command, "grow_v", resize_active_win, '+')
+            || try_1args(command, "shri_v", resize_active_win, '-')
             || try_1args(command, "to_height_t", toggle_win_size_type, 'y')
             || try_1args(command, "to_width_t", toggle_win_size_type, 'x')
             || try_1args(command, "shift_f", shift_active_win, 'f')
@@ -151,18 +150,18 @@ static uint8_t try_server_commands(struct Command * command)
 extern uint8_t try_key(uint16_t key)
 {
     struct Command * command = get_command_to_keycode(world.kb_global.kbs, key);
-    if (!command && world.wins.win_active)
+    if (!command && world.windb.active)
     {
-        struct WinConf * wc = get_winconf_by_win(world.wins.win_active);
-        if      (0 == wc->view)
+        struct Win * w = get_win_by_id(world.windb.active);
+        if      (0 == w->view)
         {
-            command = get_command_to_keycode(wc->kb.kbs, key);
+            command = get_command_to_keycode(w->kb.kbs, key);
         }
-        else if (1 == wc->view)
+        else if (1 == w->view)
         {
             command = get_command_to_keycode(world.kb_wingeom.kbs, key);
         }
-        else if (2 == wc->view)
+        else if (2 == w->view)
         {
             command = get_command_to_keycode(world.kb_winkeys.kbs, key);
         }
diff --git a/src/client/draw_wins.c b/src/client/draw_wins.c
index 8e792ca..9fd78fc 100644
--- a/src/client/draw_wins.c
+++ b/src/client/draw_wins.c
@@ -9,8 +9,7 @@
 #include <string.h> /* strlen(), strtok() */
 #include "../common/try_malloc.h" /* try_malloc() */
 #include "keybindings.h" /* struct KeyBinding, get_keyname_to_keycode() */
-#include "wincontrol.h" /* struct WinConf, get_winconf_by_win() */
-#include "windows.h" /* struct Win */
+#include "windows.h" /* struct Win, get_win_by_id() */
 #include "world.h" /* global world */
 
 
@@ -58,17 +57,17 @@ static uint16_t draw_titled_keybinding_list(char * title, struct Win * w,
 static void try_resize_winmap(struct Win * w, int new_size_y, int new_size_x)
 {
     char * f_name = "try_resize_winmap()";
-    if (w->winmapsize.y >= new_size_y && w->winmapsize.x >= new_size_x)
+    if (w->winmap_size.y >= new_size_y && w->winmap_size.x >= new_size_x)
     {
         return;
     }
-    if      (w->winmapsize.y > new_size_y)
+    if      (w->winmap_size.y > new_size_y)
     {
-        new_size_y = w->winmapsize.y;
+        new_size_y = w->winmap_size.y;
     }
-    else if (w->winmapsize.x > new_size_x)
+    else if (w->winmap_size.x > new_size_x)
     {
-        new_size_x = w->winmapsize.x;
+        new_size_x = w->winmap_size.x;
     }
     chtype * old_winmap = w->winmap;
     uint32_t new_size = sizeof(chtype) * new_size_y * new_size_x;
@@ -76,9 +75,9 @@ static void try_resize_winmap(struct Win * w, int new_size_y, int new_size_x)
     uint16_t y, x;
     for (y = 0; y < new_size_y; y++)
     {
-        for (x = 0; y < w->winmapsize.y && x < w->winmapsize.x; x++)
+        for (x = 0; y < w->winmap_size.y && x < w->winmap_size.x; x++)
         {
-            chtype ch = old_winmap[(y * w->winmapsize.x) + x];
+            chtype ch = old_winmap[(y * w->winmap_size.x) + x];
             w->winmap[(y * new_size_x) + x] = ch;
         }
         for (; x < new_size_x; x++)
@@ -87,15 +86,15 @@ static void try_resize_winmap(struct Win * w, int new_size_y, int new_size_x)
         }
     }
     free(old_winmap);
-    w->winmapsize.y = new_size_y;
-    w->winmapsize.x = new_size_x;
+    w->winmap_size.y = new_size_y;
+    w->winmap_size.x = new_size_x;
 }
 
 
 
 static void set_ch_on_yx(struct Win * w, int y, int x, chtype ch)
 {
-    w->winmap[(y * w->winmapsize.x) + x] = ch;
+    w->winmap[(y * w->winmap_size.x) + x] = ch;
 }
 
 
@@ -104,10 +103,10 @@ static void add_text_with_linebreaks(struct Win * win, char * text)
 {
     uint16_t x, y;
     int16_t z = -1;
-    for (y = win->winmapsize.y; ; y++)
+    for (y = win->winmap_size.y; ; y++)
     {
-        try_resize_winmap(win, y + 1, win->framesize.x);
-        for (x = 0; x < win->framesize.x; x++)
+        try_resize_winmap(win, y + 1, win->frame_size.x);
+        for (x = 0; x < win->frame_size.x; x++)
         {
             z++;
             if      ('\n' == text[z])
@@ -139,12 +138,12 @@ static void add_text_with_linebreaks(struct Win * win, char * text)
 
 static void add_line(struct Win * w, char * line, attr_t attri)
 {
-    uint16_t y = w->winmapsize.y;
+    uint16_t y = w->winmap_size.y;
     uint16_t len_line = strlen(line);
     if (attri
-        && w->winmapsize.x < w->framesize.x && w->framesize.x > len_line)
+        && w->winmap_size.x < w->frame_size.x && w->frame_size.x > len_line)
     {
-        try_resize_winmap(w, y + 1, w->framesize.x);
+        try_resize_winmap(w, y + 1, w->frame_size.x);
     }
     else
     {
@@ -157,7 +156,7 @@ static void add_line(struct Win * w, char * line, attr_t attri)
     }
     if (attri)
     {
-        for (; x < w->framesize.x; x++)
+        for (; x < w->frame_size.x; x++)
         {
             set_ch_on_yx(w, y, x, ' ' | attri);
         }
@@ -177,7 +176,7 @@ static void draw_text_from_bottom(struct Win * win, char * text)
     int16_t z = -1;
     for (y = 0; 0 == toggle; y++)
     {
-        for (x = 0; x < win->framesize.x; x++)
+        for (x = 0; x < win->frame_size.x; x++)
         {
             z++;
             if ('\n' == text[z])
@@ -200,16 +199,16 @@ static void draw_text_from_bottom(struct Win * win, char * text)
 
     /* Depending on what's bigger, determine start point in window or text. */
     uint16_t start_y = 0;
-    if (y < win->framesize.y)
+    if (y < win->frame_size.y)
     {
-        start_y = win->framesize.y - y;
+        start_y = win->frame_size.y - y;
     }
-    else if (y > win->framesize.y)
+    else if (y > win->frame_size.y)
     {
-        uint16_t offset = y - win->framesize.y;
+        uint16_t offset = y - win->frame_size.y;
         for (y = 0; y < offset; y++)
         {
-            for (x = 0; x < win->framesize.x; x++)
+            for (x = 0; x < win->frame_size.x; x++)
             {
                 z++;
                 if ('\n' == text[z])
@@ -385,16 +384,16 @@ extern void draw_win_available_keybindings(struct Win * win)
 {
     char * title = "Active window's keybindings:";
     struct KeyBinding * kb_p;
-    struct WinConf * wc = get_winconf_by_win(world.wins.win_active);
-    if     (0 == wc->view)
+    struct Win * w = get_win_by_id(world.windb.active);
+    if     (0 == w->view)
     {
-        kb_p = wc->kb.kbs;
+        kb_p = w->kb.kbs;
     }
-    else if (1 == wc->view)
+    else if (1 == w->view)
     {
         kb_p = world.kb_wingeom.kbs;
     }
-    else if (2 == wc->view)
+    else if (2 == w->view)
     {
         kb_p = world.kb_winkeys.kbs;
     }
@@ -432,19 +431,17 @@ extern void draw_win_keybindings_winconf_keybindings(struct Win * win)
 
 extern void draw_winconf_keybindings(struct Win * win)
 {
-    struct WinConf * wc = get_winconf_by_win(win);
     char * title = "Window's keybindings:";
     add_line(win, title, 0);
     add_line(win, " ", 0);
-    draw_keybinding_config(win, &wc->kb, 2);
-    win->center.y = wc->kb.select + 2;
+    draw_keybinding_config(win, &win->kb, 2);
+    win->center.y = win->kb.select + 2;
 }
 
 
 
 extern void draw_winconf_geometry(struct Win * win)
 {
-    struct WinConf * wcp = get_winconf_by_win(win);
     char * title = "Window's geometry:\n";
     char * h_d   = "\nHeight to save: ";
     char * h_pos = " (width in cells)";
@@ -454,11 +451,11 @@ extern void draw_winconf_geometry(struct Win * win)
     char * w_neg = " (negative diff: cells to screen height)";
     char * h_t = h_pos;
     char * w_t = w_pos;
-    if (1 == wcp->height_type)
+    if (1 == win->target_height_type)
     {
         h_t = h_neg;
     }
-    if (1 == wcp->width_type)
+    if (1 == win->target_width_type)
     {
         w_t = w_neg;
     }
@@ -466,7 +463,7 @@ extern void draw_winconf_geometry(struct Win * win)
                     + strlen(h_t) + strlen(h_d) + 6      /* 6 = n of chars to */
                     + strlen(w_t) + strlen(w_d) + 6 + 1; /* write max int16_t */
     char text[maxl + 1];
-    sprintf(text, "%s%s%d%s%s%d%s", title, h_d, wcp->height, h_t,
-                                           w_d, wcp->width,  w_t);
+    sprintf(text, "%s%s%d%s%s%d%s", title, h_d, win->target_height, h_t,
+                                           w_d, win->target_width,  w_t);
     add_text_with_linebreaks(win, text);
 }
diff --git a/src/client/io.c b/src/client/io.c
index 998691c..095577d 100644
--- a/src/client/io.c
+++ b/src/client/io.c
@@ -17,9 +17,9 @@
                                   * try_fgetc()
                                   */
 #include "control.h" /* try_key() */
-#include "map_window.h" /* for map_center() */
+#include "map_window.h" /* map_center() */
 #include "misc.h" /* reset_windows() */
-#include "windows.h" /* draw_all_wins() */
+#include "windows.h" /* reset_windows_on_winch(), draw_all_wins() */
 #include "world.h" /* world global */
 
 
@@ -260,7 +260,7 @@ extern char * io_loop()
     {
         if (world.winch)
         {
-            reset_windows();
+            reset_windows_on_winch();
             world.winch = 0;
             change_in_client++;
         }
diff --git a/src/client/keybindings.c b/src/client/keybindings.c
index 7207641..fd62dda 100644
--- a/src/client/keybindings.c
+++ b/src/client/keybindings.c
@@ -9,7 +9,6 @@
 #include <string.h> /* strlen(), strchr(), strcmp() */
 #include "../common/readwrite.h" /* textfile_sizes(), try_fgets(),try_fwrite()*/
 #include "../common/try_malloc.h" /* try_malloc() */
-#include "wincontrol.h" /* get_winconf_by_win() */
 #include "windows.h" /* draw_all_wins() */
 #include "world.h" /* global world */
 
@@ -82,8 +81,8 @@ static struct KeyBindingDB * char_selected_kb_db(char c)
     }
     else if ('w' == c)
     {
-        struct WinConf * wc = get_winconf_by_win(world.wins.win_active);
-        kbd = &wc->kb;
+        struct Win * w = get_win_by_id(world.windb.active);
+        kbd = &w->kb;
     }
     return kbd;
 }
diff --git a/src/client/main.c b/src/client/main.c
index 61c53b8..3e3bbdd 100644
--- a/src/client/main.c
+++ b/src/client/main.c
@@ -9,6 +9,7 @@
 #include "command_db.h" /* init_command_db() */
 #include "io.h" /* io_loop(), try_send() */
 #include "misc.h" /* load_interface_conf(), winch_called() */
+#include "windows.h" /* struct Win, winch_called() */
 #include "world.h" /* struct World */
 
 
@@ -32,11 +33,11 @@ int main(int argc, char * argv[])
     set_cleanup_func(cleanup);
 
     /* Initialize the whole interface. */
-    world.wins.screen = initscr();
+    world.windb.t_screen = initscr();
     set_cleanup_flag(CLEANUP_NCURSES);
     noecho();
     curs_set(0);
-    keypad(world.wins.screen, TRUE);
+    keypad(world.windb.t_screen, TRUE);
     init_command_db();      /* The command DB needs to be initialized before  */
     load_interface_conf();  /* the interface, whose keybindings depend on it. */
 
diff --git a/src/client/map_window.c b/src/client/map_window.c
index aace59c..e9f7ced 100644
--- a/src/client/map_window.c
+++ b/src/client/map_window.c
@@ -3,8 +3,7 @@
 #include "map_window.h"
 #include <stdint.h> /* uint16_t */
 #include "misc.h" /* center_offset() */
-#include "wincontrol.h" /* get_win_by_id() */
-#include "windows.h" /* struct Win */
+#include "windows.h" /* struct Win, get_win_by_id() */
 #include "world.h" /* for global world */
 
 
@@ -13,11 +12,11 @@ extern void map_scroll(char d)
 {
     struct Win * win = get_win_by_id('m');
     uint16_t offset;
-    if (('N' == d || 'S' == d) && world.map.size.y > win->framesize.y)
+    if (('N' == d || 'S' == d) && world.map.size.y > win->frame_size.y)
     {
         offset = center_offset(win->center.y,
-                               world.map.size.y, win->framesize.y);
-        win->center.y = offset + (win->framesize.y / 2);
+                               world.map.size.y, win->frame_size.y);
+        win->center.y = offset + (win->frame_size.y / 2);
         if ('S' == d && win->center.y < world.map.size.y - 1)
         {
             win->center.y++;
@@ -25,11 +24,11 @@ extern void map_scroll(char d)
         }
         win->center.y = win->center.y - ('N' == d && win->center.y > 0);
     }
-    else if (('W' == d || 'E' == d) && world.map.size.x > win->framesize.x)
+    else if (('W' == d || 'E' == d) && world.map.size.x > win->frame_size.x)
     {
         offset = center_offset(win->center.x,
-                               world.map.size.x, win->framesize.x);
-        win->center.x = offset + (win->framesize.x / 2);
+                               world.map.size.x, win->frame_size.x);
+        win->center.x = offset + (win->frame_size.x / 2);
         if ('E' == d && win->center.x < world.map.size.x - 1)
         {
             win->center.x++;
diff --git a/src/client/map_window.h b/src/client/map_window.h
index 46ca435..39b0e6d 100644
--- a/src/client/map_window.h
+++ b/src/client/map_window.h
@@ -6,8 +6,6 @@
 #ifndef MAP_WINDOW_H
 #define MAP_WINDOW_H
 
-#include "../common/yx_uint16.h" /* for yx_uint16  */
-
 
 
 /* Try changing map window's focus into direction "d" (north = "N" etc.). */
diff --git a/src/client/misc.c b/src/client/misc.c
index a37155b..ca8e829 100644
--- a/src/client/misc.c
+++ b/src/client/misc.c
@@ -1,28 +1,25 @@
 /* src/client/misc.c */
 
 #include "misc.h"
-#include <ncurses.h> /* delwin(), endwin(), refresh() */
-#include <stdint.h> /* uint8_t, uint16_t */
+#include <stdlib.h> /* exit() */
+#include <ncurses.h> /* delwin() */
+#include <stddef.h> /* NULL */
+#include <stdint.h> /* uint8_t, uint32_t */
 #include <stdio.h> /* sprintf() */
-#include <stdlib.h> /* exit(), free() */
-#include <string.h> /* memset(), strlen() */
+#include <string.h> /* strlen() */
 #include <unistd.h> /* global optarg, getopt() */
-#include "../common/readwrite.h" /* try_fopen(), try_fclose(),
+#include "../common/readwrite.h" /* try_fopen(), try_fclose(), textfile_sizes(),
                                   * try_fclose_unlink_rename(),
                                   */
-#include "cleanup.h" /* for set_cleanup_flag() */
+#include "cleanup.h" /* set_cleanup_flag() */
 #include "keybindings.h" /* free_keybindings(), read_keybindings_from_file(),
                           * write_keybindings_to_file()
                           */
-#include "map_window.h" /* for map_center() */
-#include "wincontrol.h" /* struct WinConf, init_wins(), get_winconf_by_win(),
-                         * sorted_win_toggle_and_activate(), get_win_by_id(),
-                         * toggle_window(), write_winconf_of_id_to_file(),
-                         * read_winconf_from_file(), get_next_winconf_id(),
-                         * read_order_wins_visible_active(),
-                         * write_order_wins_visible_active()
-                         */
-#include "windows.h" /* struct Win, make_pad(), suspend_win(), free_win() */
+#include "map_window.h" /* map_center() */
+#include "windows.h" /* for free_windb(), make_v_screen_and_init_win_sizes(),
+                      * read_winconf_from_file(), write_winconf_of_id_to_file(),
+                      * toggle_window()
+                      */
 #include "world.h" /* global world */
 
 
@@ -58,9 +55,9 @@ extern void save_interface_conf()
     write_keybindings_to_file(file, &world.kb_winkeys, delim);
     write_order_wins_visible_active(file, delim);
     uint8_t i;
-    for (i = 0; i < strlen(world.wins.ids); i++)
+    for (i = 0; i < strlen(world.windb.ids); i++)
     {
-        write_winconf_of_id_to_file(file, world.wins.ids[i], delim);
+        write_winconf_of_id_to_file(file, world.windb.ids[i], delim);
     }
     try_fclose_unlink_rename(file, path_tmp, path, f_name);
 }
@@ -83,9 +80,14 @@ extern void load_interface_conf()
     try_fclose(file, f_name);
 
     /* Build windows as defined by read interface data and toggle them on. */
-    make_pad();
-    init_wins();
-    sorted_win_toggle_and_activate();
+    make_v_screen_and_init_win_sizes();
+    uint8_t i;
+    char tmp_active = world.windb.active;
+    char tmp_order[strlen(world.windb.order) + 1];
+    sprintf(tmp_order, "%s", world.windb.order);
+    world.windb.order[0] = '\0';
+    for (i = 0; i < strlen(tmp_order); toggle_window(tmp_order[i]), i++);
+    world.windb.active = tmp_active;
 
     /* So that the interface config data and the window structs get freed. */
     set_cleanup_flag(CLEANUP_INTERFACE);
@@ -101,66 +103,12 @@ extern void unload_interface_conf()
     world.kb_wingeom.kbs = NULL;
     free_keybindings(world.kb_winkeys.kbs);
     world.kb_winkeys.kbs = NULL;
-    while (0 != world.wins.win_active)
-    {
-        suspend_win(world.wins.win_active);
-    }
-    free_winconfs();
-    delwin(world.wins.pad);
-}
-
-
-
-extern void winch_called(int signal)
-{
-    world.winch = 1;
-}
-
-
-
-extern void reset_windows()
-{
-    endwin();  /* "[S]tandard way" to recalibrate ncurses post SIGWINCH, says */
-    refresh(); /* <http://invisible-island.net/ncurses/ncurses-intro.html>.   */
-    struct Win * w_p = world.wins.chain_start;
-    char win_ids[strlen(world.wins.ids) + 1];
-    memset(win_ids, '\0', strlen(world.wins.ids) + 1);
-    uint8_t i = 0;
-    char active = '\0';
-    for (; NULL != w_p; w_p = w_p->next, i++)
-    {
-        struct WinConf * wc_p = get_winconf_by_win(w_p);
-        win_ids[i] = wc_p->id;
-        if (w_p == world.wins.win_active)
-        {
-            active = wc_p->id;
-        }
-    }
-    while (0 != world.wins.win_active)
-    {
-        w_p = world.wins.win_active;
-        suspend_win(w_p);
-    }
-    char id;
-    while (0 != (id = get_next_winconf_id()))
+    while ('\0' != world.windb.active)
     {
-        free_win(get_win_by_id(id));
-    }
-    delwin(world.wins.pad);
-    make_pad();
-    init_wins();
-    if (strlen(win_ids) < 1)
-    {
-        return;
-    }
-    for (i = 0; i < strlen(win_ids); i++)
-    {
-        toggle_window(win_ids[i]);
-        if (active == win_ids[i])
-        {
-            world.wins.win_active = get_win_by_id(win_ids[i]);
-        }
+        toggle_window(world.windb.active);
     }
+    free_windb();
+    delwin(world.windb.v_screen);
 }
 
 
@@ -174,29 +122,6 @@ extern void reload_interface_conf()
 
 
 
-extern uint16_t center_offset(uint16_t position, uint16_t mapsize,
-                              uint16_t framesize)
-{
-    uint16_t offset = 0;
-    if (mapsize > framesize)
-    {
-        if (position > framesize / 2)
-        {
-            if (position < mapsize - (framesize / 2))
-            {
-                offset = position - (framesize / 2);
-            }
-            else
-            {
-                offset = mapsize - framesize;
-            }
-        }
-    }
-    return offset;
-}
-
-
-
 extern void nav_inventory(char dir)
 {
     if ('u' == dir)
@@ -214,4 +139,3 @@ extern void nav_inventory(char dir)
     world.player_inventory_select = world.player_inventory_select
                                     + (world.player_inventory_select < n_elems);
 }
-
diff --git a/src/client/misc.h b/src/client/misc.h
index 01e2488..5fb3e71 100644
--- a/src/client/misc.h
+++ b/src/client/misc.h
@@ -7,8 +7,6 @@
 #ifndef MISC_H
 #define MISC_H
 
-#include <stdint.h> /* for uint16_t */
-
 
 
 /* Parses command line argument -i into client configuration. */
@@ -25,17 +23,6 @@ extern void load_interface_conf();
 extern void unload_interface_conf();
 extern void reload_interface_conf();
 
-/* The SIGWINCH handler winch_called() merely sets world.winch to 1. This info
- * is used by io_loop() to call reset_windows(), which adapts the currently
- * loaded interface configuration to the new screen size.
- */
-extern void winch_called();
-extern void reset_windows();
-
-/* Return offset into center map of "mapsize" on "position" in "framesize". */
-extern uint16_t center_offset(uint16_t position,
-                              uint16_t mapsize, uint16_t framesize);
-
 /* Move world.inventory_sel up ("dir"="u") or down (else) as far as possible. */
 extern void nav_inventory(char dir);
 
diff --git a/src/client/wincontrol.c b/src/client/wincontrol.c
deleted file mode 100644
index 5b82053..0000000
--- a/src/client/wincontrol.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/* src/client/wincontrol.c */
-
-#include "wincontrol.h"
-#include <errno.h> /* global errno */
-#include <stddef.h> /* NULL */
-#include <stdint.h> /* uint8_t, uint16_t, uint32_t */
-#include <stdio.h> /* FILE, sprintf() */
-#include <stdlib.h> /* free(), atoi() */
-#include <string.h> /* strlen(), strchr(), memcpy() */
-#include "../common/readwrite.h" /* try_fgets(), try_fwrite(), try_fgetc(),
-                                  * try_fputc()
-                                  */
-#include "../common/rexit.h" /* exit_err(), exit_trouble() */
-#include "../common/try_malloc.h" /* try_malloc() */
-#include "../common/yx_uint16.h" /* struct yx_uint16 */
-#include "draw_wins.h" /* draw_win_map(), draw_win_info(), draw_win_log(),
-                        * draw_win_available_keybindings(),
-                        * draw_win_inventory(), draw_win_keybindings_global(),
-                        * draw_win_keybindings_winconf_geometry(),
-                        * draw_win_keybindings_winconf_keybindings(),
-                        * draw_winconf_geometry(), draw_winconf_keybindings()
-                        */
-#include "keybindings.h" /* struct KeyBinding, free_keybindings() */
-#include "windows.h" /* struct Win, resize_active_win(), reset_pad_offset(),
-                      * append_win(), suspend_win(), init_win(), free_win()
-                      */
-#include "world.h" /* global world */
-
-
-
-/* Wrapper around init_win() called with values from Winconf of "id". */
-static void init_win_from_winconf(char id);
-
-/* Free data pointed to inside individual WinConf struct of "id". */
-static void free_winconf_data(char id);
-
-/* Write geometry of a window to its WinConf, as positive or negative values
- * (dependent on state ofWinConf->height_type / WinConf->width_type).
- */
-static void set_winconf_geometry(char id);
-
-/* Get WinConf by "id". */
-static struct WinConf * get_winconf_by_id(char id);
-
-/* Get (Win->draw) function identified by "c"; NULL if c not mapped to one. */
-static void * get_drawfunc_by_char(char c);
-
-
-
-static void free_winconf_data(char id)
-{
-    struct WinConf * wc = get_winconf_by_id(id);
-    free(wc->title);
-    free_keybindings(wc->kb.kbs);
-    free_win(wc->win);
-}
-
-
-
-static void set_winconf_geometry(char id)
-{
-    struct WinConf * wcp = get_winconf_by_id(id);
-    if      (0 == wcp->height_type)
-    {
-        wcp->height = wcp->win->framesize.y;
-    }
-    else if (1 == wcp->height_type)
-    {
-        wcp->height = wcp->win->framesize.y - world.wins.padsize.y + 1;
-    }
-    if      (0 == wcp->width_type)
-    {
-        wcp->width = wcp->win->framesize.x;
-    }
-    else if (1 == wcp->width_type)
-    {
-        wcp->width = wcp->win->framesize.x - world.wins.padsize.x;
-    }
-}
-
-
-
-static void * get_drawfunc_by_char(char c)
-{
-
-    if      ('c' == c)
-    {
-        return draw_win_inventory;
-    }
-    else if ('i' == c)
-    {
-        return draw_win_info;
-    }
-    else if ('l' == c)
-    {
-        return draw_win_log;
-    }
-    else if ('k' == c)
-    {
-        return draw_win_available_keybindings;
-    }
-    else if ('m' == c)
-    {
-        return draw_win_map;
-    }
-    else if ('0' == c)
-    {
-        return draw_win_keybindings_global;
-    }
-    else if ('1' == c)
-    {
-        return draw_win_keybindings_winconf_geometry;
-    }
-    else if ('2' == c)
-    {
-        return draw_win_keybindings_winconf_keybindings;
-    }
-    return NULL;
-}
-
-
-
-extern void init_win_from_winconf(char id)
-{
-    char * err = "get_drawfunc_by_char() returns NULL to init_win_from_file().";
-    struct WinConf * winconf = get_winconf_by_id(id);
-    void * f = get_drawfunc_by_char(winconf->id);
-    exit_err(NULL == f, err);
-    init_win(&winconf->win, winconf->title, winconf->height, winconf->width, f);
-}
-
-
-
-static struct WinConf * get_winconf_by_id(char id)
-{
-    uint8_t i = 0;
-    while (1)
-    {
-        if (id == world.wins.winconfs[i].id)
-        {
-            return &world.wins.winconfs[i];
-        }
-        i++;
-    }
-}
-
-
-
-extern struct WinConf * get_winconf_by_win(struct Win * win)
-{
-    uint8_t i = 0;
-    while (1)
-    {
-        if (win == world.wins.winconfs[i].win)
-        {
-            return &world.wins.winconfs[i];
-        }
-        i++;
-    }
-}
-
-
-
-extern struct Win * get_win_by_id(char id)
-{
-    struct WinConf * wc = get_winconf_by_id(id);
-    return wc->win;
-}
-
-
-
-extern uint8_t read_winconf_from_file(char * line, uint32_t linemax,
-                                      FILE * file)
-{
-    char * f_name = "read_winconf_from_file()";
-    int test = try_fgetc(file, f_name);
-    if (EOF == test)
-    {
-        return 0;
-    }
-    struct WinConf winconf;
-    winconf.id = (char) test;
-    try_fgetc(file, f_name);
-    try_fgets(line, linemax + 1, file, f_name);
-    winconf.title = try_malloc(strlen(line), f_name);
-    memcpy(winconf.title, line, strlen(line) - 1);  /* Eliminate newline char */
-    winconf.title[strlen(line) - 1] = '\0';         /* char at end of string. */
-    try_fgets(line, linemax + 1, file, f_name);
-    winconf.height = atoi(line);
-    winconf.height_type = (0 >= winconf.height);
-    try_fgets(line, linemax + 1, file, f_name);
-    winconf.width = atoi(line);
-    winconf.width_type = (0 >= winconf.width);
-    read_keybindings_from_file(line, linemax, file, &winconf.kb);
-    winconf.win = NULL;
-    winconf.view = 0;
-    winconf.center.y = 0;
-    winconf.center.x = 0;
-    if (world.wins.ids)
-    {
-        uint8_t old_ids_size = strlen(world.wins.ids);
-        char * new_ids = try_malloc(old_ids_size + 1 + 1, f_name);
-        sprintf(new_ids, "%s%c", world.wins.ids, winconf.id);
-        free(world.wins.ids);
-        world.wins.ids = new_ids;
-        uint16_t old_winconfs_size = old_ids_size * sizeof(struct WinConf);
-        uint16_t new_winconfs_size = old_winconfs_size + sizeof(struct WinConf);
-        struct WinConf * new_winconfs = try_malloc(new_winconfs_size, f_name);
-        memcpy(new_winconfs, world.wins.winconfs, old_winconfs_size);
-        new_winconfs[old_ids_size] = winconf;
-        free(world.wins.winconfs);
-        world.wins.winconfs = new_winconfs;
-    }
-    else
-    {
-        world.wins.ids = try_malloc(2, f_name);
-        sprintf(world.wins.ids, "%c", winconf.id);
-        world.wins.winconfs = try_malloc(sizeof(struct WinConf), f_name);
-        *world.wins.winconfs = winconf;
-    }
-    return 1;
-}
-
-
-
-extern void write_winconf_of_id_to_file(FILE * file, char c, char * delim)
-{
-    char * f_name = "write_winconf_of_id_to_file()";
-    struct WinConf * wc = get_winconf_by_id(c);
-    uint8_t size = strlen(wc->title) + 2;
-    if (size < 7)  /* Ensure that at least 5 + 2 char fit into line so that   */
-    {              /* the digit representation of any uint16_t may be stored. */
-        size = 7;
-    }
-    char line[size];
-    sprintf(line, "%c\n", wc->id);
-    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
-    sprintf(line, "%s\n", wc->title);
-    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
-    sprintf(line, "%d\n", wc->height);
-    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
-    sprintf(line, "%d\n", wc->width);
-    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
-    write_keybindings_to_file(file, &wc->kb, delim);
-}
-
-
-
-extern void read_order_wins_visible_active(char * line, uint32_t linemax,
-                                           FILE * file)
-{
-    char * f_name = "read_order_wins_visible_active()";
-    char win_order[linemax + 1];
-    try_fgets(win_order, linemax + 1, file, f_name);
-    world.wins.order = try_malloc(linemax, f_name);
-    win_order[strlen(win_order) - 1] = '\0';
-    sprintf(world.wins.order, "%s", win_order);
-    int char_or_eof = try_fgetc(file, f_name);
-    char * err_eof = "fgetc() unexpectedly hitting EOF";
-    exit_trouble(EOF == char_or_eof, f_name, err_eof);
-    world.wins.id_active = (uint8_t) char_or_eof;
-    exit_trouble(EOF == try_fgetc(file, f_name), f_name, err_eof);
-    try_fgets(line, linemax + 1, file, f_name);
-}
-
-
-
-extern void write_order_wins_visible_active(FILE * file, char * delim)
-{
-    char * f_name = "write_order_wins_visible_active()";
-    char line[strlen(world.wins.ids) + 2];
-    struct Win * w_p = world.wins.chain_start;
-    char active = ' ';
-    uint8_t i;
-    for (; NULL != w_p; w_p = w_p->next, i++)
-    {
-        struct WinConf * wc_p = get_winconf_by_win(w_p);
-        line[i] = wc_p->id;
-        if (w_p == world.wins.win_active)
-        {
-            active = wc_p->id;
-        }
-    }
-    line[i] = '\n';
-    line[i + 1] = '\0';
-    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
-    try_fputc(active, file, f_name);
-    try_fputc('\n', file, f_name);
-    try_fwrite(delim, strlen(delim), 1, file, f_name);
-}
-
-
-
-extern void free_winconfs()
-{
-    char id;
-    while (0 != (id = get_next_winconf_id()))
-    {
-        free_winconf_data(id);
-    }
-    free(world.wins.ids);
-    world.wins.ids = NULL;
-    free(world.wins.winconfs);
-    world.wins.winconfs = NULL;
-    free(world.wins.order);
-    world.wins.order = NULL;
-}
-
-
-
-extern void init_wins()
-{
-    char id;
-    while (0 != (id = get_next_winconf_id()))
-    {
-        init_win_from_winconf(id);
-    }
-}
-
-
-
-extern void sorted_win_toggle_and_activate()
-{
-    uint8_t i = 0;
-    for (; i < strlen(world.wins.order); i++)
-    {
-        if (NULL == strchr(world.wins.ids, world.wins.order[i]))
-        {
-            continue;
-        }
-        toggle_window(world.wins.order[i]);
-        if (world.wins.id_active == (uint8_t) world.wins.order[i])
-        {
-            world.wins.win_active = get_win_by_id(world.wins.order[i]);
-        }
-    }
-}
-
-
-extern char get_next_winconf_id()
-{
-    static uint8_t i = 0;
-    char c = world.wins.ids[i];
-    if (0 == c)
-    {
-        i = 0;
-        return c;
-    }
-    i++;
-    return c;
-}
-
-
-
-extern void toggle_window(char id)
-{
-    struct Win * win = get_win_by_id(id);
-    if (0 == win->prev && world.wins.chain_start != win)    /* Win struct is  */
-    {                                                       /* outside chain? */
-        append_win(win);
-    }
-    else
-    {
-        suspend_win(win);
-    }
-}
-
-
-
-extern void toggle_winconfig()
-{
-   struct Win * win = world.wins.win_active;
-   struct WinConf * wcp = get_winconf_by_win(win);
-    if      (0 == wcp->view)
-    {
-        wcp->view     = 1;
-        win->draw     = draw_winconf_geometry;
-        wcp->center   = win->center;
-        win->center.y = 0;
-        win->center.x = 0;
-    }
-    else if (1 == wcp->view)
-    {
-        wcp->view     = 2;
-        win->draw     = draw_winconf_keybindings;
-        win->center.x = 0;
-    }
-    else
-    {
-        wcp->view     = 0;
-        win->draw     = get_drawfunc_by_char(wcp->id);
-        win->center   = wcp->center;
-    }
-}
-
-
-
-extern void toggle_win_size_type(char axis)
-{
-    struct Win * win = world.wins.win_active;
-    struct WinConf * wcp = get_winconf_by_win(win);
-    if ('y' == axis)
-    {
-        wcp->height_type = (0 == wcp->height_type);
-        set_winconf_geometry(wcp->id);
-        return;
-    }
-    wcp->width_type = (   0 == wcp->width_type
-                       && win->framesize.x <= world.wins.padsize.x);
-    set_winconf_geometry(wcp->id);
-}
-
-
-
-extern void scroll_pad(char dir)
-{
-    if      ('+' == dir)
-    {
-        reset_pad_offset(world.wins.pad_offset + 1);
-    }
-    else if ('-' == dir)
-    {
-        reset_pad_offset(world.wins.pad_offset - 1);
-    }
-}
-
-
-
-extern void growshrink_active_window(char change)
-{
-    if (0 != world.wins.win_active)
-    {
-        struct yx_uint16 size = world.wins.win_active->framesize;
-        if      (change == '-')
-        {
-            size.y--;
-        }
-        else if (change == '+')
-        {
-            size.y++;
-        }
-        else if (change == '_')
-        {
-            size.x--;
-        }
-        else if (change == '*')
-        {
-            size.x++;
-        }
-        resize_active_win(size);
-        struct WinConf * wcp = get_winconf_by_win(world.wins.win_active);
-        if (   1 == wcp->width_type
-            && world.wins.win_active->framesize.x > world.wins.padsize.x)
-        {
-            wcp->width_type = 0;
-        }
-        set_winconf_geometry(wcp->id);
-    }
-}
diff --git a/src/client/wincontrol.h b/src/client/wincontrol.h
deleted file mode 100644
index 9e7de86..0000000
--- a/src/client/wincontrol.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* src/client/wincontrol.h
- *
- * Routines that build on top of the windows library to provide a simple window
- * management API to the game. Also helps managing window-specific keybindings.
- */
-
-#ifndef WINCONTROL_H
-#define WINCONTROL_H
-
-#include <stdint.h> /* uint8_t, int16_t */
-#include "keybindings.h" /* struct KeyBindingDB */
-#include "../common/yx_uint16.h" /* yx_uint16 struct */
-struct Win;
-
-#include <ncurses.h>
-
-
-struct WinConfDB
-{
-    WINDOW * screen;           /* ncurses' pointer to the terminal screen */
-    WINDOW * pad;              /* ncurses pad of virtual screen */
-    struct WinConf * winconfs;
-    struct Win * chain_start; /* first Win in chain; its .prev == 0 */
-    struct Win * chain_end;   /* last Win in chain; its .next == 0 */
-    struct Win * win_active;  /* Win highlighted / selected for manipulation */
-    struct yx_uint16 padsize; /* virtual screen size */
-    char * ids;               /* all windows' ids */
-    char * order;             /* order of visible windows (identified by IDs) */
-    uint16_t pad_offset;      /* number of cells view is moved to the right */
-    char id_active;           /* id of window selected as active */
-};
-
-/* Window's configuration (like geometry, keybindings) and the Win itself. */
-struct WinConf
-{
-    struct Win * win;    /* Window / Win struct configured by this WinConf. */
-    struct KeyBindingDB kb; /* Window-specific keybindings. */
-    struct yx_uint16 center; /* Designated Win.center. */
-    int16_t height;      /* Designated height to pass to init_win(). */
-    int16_t width;       /* Designated width to pass to init_win(). */
-    uint8_t height_type; /* 0: read .height/.width as size in positive cells; */
-    uint8_t width_type;  /* 1: as negative diff in cells to the screen size.  */
-    uint8_t view; /* 0: use .draw as Win.draw; 1/2: use draw_winconf()_(1/2). */
-    char id; /* Identifier of WinConf, also identifies Win.draw function. */
-    char * title; /* Designated title to pass to init_win(). */
-};
-
-
-
-/* Get WinConf fathering "win" / get Win of WinConf of "id". */
-extern struct WinConf * get_winconf_by_win(struct Win * win);
-extern struct Win * get_win_by_id(char id);
-
-/* Free all WinConf DB data. */
-extern void free_winconfs();
-
-/* Initialize  Win structs for WinConfs in WinConf database. */
-extern void init_wins();
-
-/* Toggle windows in order set by world.win_order. Point active window selection
- * to window identified by world.wins.win_active.
- */
-extern void sorted_win_toggle_and_activate();
-
-/* Read/write world.win_order and world.wins.win_active from/to "file". */
-extern void read_order_wins_visible_active(char * line, uint32_t linemax,
-                                           FILE * file);
-extern void write_order_wins_visible_active(FILE * file, char * delim);
-
-/* Iterate over chars of world.wins.winconf_ids array. Restart after \0.*/
-extern char get_next_winconf_id();
-
-/* Read/write individual WinConf (identified by "c") from/to file. */
-extern uint8_t read_winconf_from_file(char * line, uint32_t linemax,
-                                      FILE * file);
-extern void write_winconf_of_id_to_file(FILE * file, char c, char * delim);
-
-/* Toggle "window configuration" view for active window. Sets sensible
- * Win.center values for the various configuration views (for winconf_geometry:
- * y=0, x=0; for winconf_keys: x=0 (y is set by draw_winconf_keybindings()).
- */
-extern void toggle_winconfig();
-
-/* Toggle WinConf.(height/width)_type ("axis" = "y": height; else: width). Avoid
- * positive diff to screen width (value would be wrongly read as a non-diff),
- * width_type toggles to 1 only if world.wins.screen's width >= WinConf.width.
- */
-extern void toggle_win_size_type(char axis);
-
-/* Toggle display of a window identified by "id". */
- extern void toggle_window(char id);
-
-/* Try scrolling virtual screen left ("dir" = "-") or right ("dir" = "+") to the
- * degree allowed by the window manager's reset_pad_offset().
- */
-extern void scroll_pad(char dir);
-
-/* Try to grow or shrink the active window horizontally ("change" = "*"/"_") or
- * vertically ("change = "+"/"-") by one cell size to the degree allowed by the
- * window manager's resize_active_win(). If a new window width would surpass
- * that of the terminal screen, set WinConf.width_type to 0.
- */
-extern void growshrink_active_window(char change);
-
-
-
-#endif
diff --git a/src/client/windows.c b/src/client/windows.c
index c69ee7d..2d5dd3a 100644
--- a/src/client/windows.c
+++ b/src/client/windows.c
@@ -1,26 +1,66 @@
 /* src/client/windows.c */
 
 #include "windows.h"
+#include <ncurses.h> /* chtype, getmaxx(), getmaxy(), erase(), werase(),
+                      * endwin(), delwin(), wnoutrefresh(), pnoutrefresh(),
+                      * doupdate(), refresh(), delwin(), newpad(), mvwaddch(),
+                      * mvwaddstr(), wresize()
+                      */
 #include <stddef.h> /* NULL */
+#include <stdlib.h> /* free(), atoi() */
 #include <stdint.h> /* uint8_t, uint16_t, uint32_t, UINT16_MAX */
 #include <stdio.h> /* sprintf() */
-#include <stdlib.h> /* free() */
-#include <string.h> /* strlen(), memcpy(), strnlen() */
-#include <ncurses.h> /* chtype, pnoutrefresh(), doupdate(), werase(), erase(),
-                      * wnoutrefresh(), getmaxx(), getmaxy(), mvwaddstr(),
-                      * mvwaddch(), mvwaddstr(), wresize()
-                      */
-#include "../common/rexit.h" /* for exit_err() */
-#include "../common/try_malloc.h" /* for try_malloc() */
-#include "../common/yx_uint16.h" /* for struct yx_uint16 */
-#include "misc.h" /* for center_offset() */
-#include "world.h" /* for world global */
+#include <string.h> /* memcpy(), strlen(), strnlen(), strchr() */
+#include "../common/rexit.h" /* exit_trouble(), exit_err() */
+#include "../common/readwrite.h" /* try_fputc(), try_write(), try_fgets(),
+                                  * try_fgetc()
+                                  */
+#include "../common/try_malloc.h" /* try_malloc() */
+#include "../common/yx_uint16.h" /* struct yx_uint16 */
+#include "draw_wins.h" /* draw_winconf_geometry(), draw_winconf_keybindings(),
+                        * draw_win_inventory(), draw_win_info(), draw_win_log(),
+                        * draw_win_available_keybindings(), draw_win_map(),
+                        * draw_win_keybindings_winconf_keybindings(),
+                        * draw_win_keybindings_winconf_geometry(),
+                        * draw_win_keybindings_global()
+                        */
+#include "keybindings.h" /* free_keybindings(), write_keybidings_to_file(),
+                          * read_keybindings_from_file()
+                          */
+#include "world.h" /* global world */
+
+
+
+/* Get position of id "c" in world.windb.order or return Win before/after (or
+ * NULL if there is no window before/after).
+ */
+static uint8_t get_pos_in_order(char c);
+static struct Win * get_win_after(char c);
+static struct Win * get_win_before(char c);
+
+/* Calculate "id"'s window's size from v_screen size and .target_(height/width).
+ * A .target_width == 0 makes the window as wide as .t_screen. .target_height ==
+ * 0 sets the maximum allowed height: one cell smaller than that of .v_screen.
+ * Negative values make width/height so many cells smaller than what 0 would
+ * set. Values that would reduce the window height or width to less than 1 cell
+ * according to the aforementioned rules set the height/width as if they were 0.
+ */
+static void init_win_size_from_winconf_and_v_screen_size(char id);
 
+/* Get (Win->draw) function identified by "c"; NULL if c not mapped to one.
+ * match_func() is just a little helper to it.
+ */
+static uint8_t match_func(char c, void (** f) (), char c_m, void (* f_m) ());
+static void * get_drawfunc_by_char(char c);
 
+/* Write "win"'s size back to .target_(height/width) as per .target_*_type. */
+static void set_win_target_size(struct Win * win);
 
+/* Iterate over chars of world.windb.ids array / string. Restart after \0.*/
+static char get_next_win_id();
 
-/* Make virtual screen just wide enough to contain all visible windows. */
-static void refit_pad();
+/* Make .v_screen just wide enough to contain all visible windows. */
+static void refit_v_screen();
 
 /* Update geometry (sizes, positions) of window "w" and its successors in the
  * window chain. Use place_win() for the positioning algorithm.
@@ -29,23 +69,19 @@ static void update_wins(struct Win * w);
 static void place_win(struct Win * w);
 
 /* Draw scroll hint (a line saying that there are "dist" more elements of "unit"
- * further into the direction symbolized by "dir") into virtual screen, onto an
- * appropriate edge of a window or the screen; the left/right edge if "dir" is
- * "<"/">", or the top/bottom edge if it is "^"/"v". "start" be either the start
- * coordinate of a window's frame, or .y=0, .x=wm->pad_offset for the virtual
- * screen. winscroll_hint() and padscroll_hint() are wrappers to both cases.
+ * further into the direction symbolized by "dir") into .v_screen, onto an
+ * appropriate edge of a window or .v_screen; the left/right edge if "dir" is
+ * "<"/">", or the top/bottom edge if it is "^"/"v". Use "start" as the start
+ * coordinate of the frame that is to contain the scroll hints. winscroll_hint()
+ * is a wrapper that uses the border of window "w" as this frame.
  */
 static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist,
                         char * unit, struct yx_uint16 start);
 static void winscroll_hint(struct Win * w, char dir, uint16_t dist);
-static void padscroll_hint(char dir, uint16_t dist);
-
-/* Draw contents of all windows in window chain from window "w" onwards. */
-static void draw_wins(struct Win * w);
 
 /* draw_win_borderlines() draws vertical/horizontal borders of window "w" sans
- * corners into the virtual screen. It draws the top border line as the windows'
- * title bar (highlighted if the window is selected as active). It is called
+ * corners into .v_screen. It draws the top border line as the windows' title
+ * bar (highlighted if the window is selected as active). It is called
  * recursively by draw_wins_borderlines() on all windows from "w" on.
  * draw_wins_bordercorners() draws the border corners of "w" and its successors.
  */
@@ -53,34 +89,166 @@ static void draw_win_borderlines(struct Win * w);
 static void draw_wins_borderlines(struct Win * w);
 static void draw_wins_bordercorners(struct Win * w);
 
-/* Shift active window forwards / backwards in window chain. */
-static void shift_win_forward();
-static void shift_win_backward();
+/* Draw contents of all windows in window chain from window "w" onwards. */
+static void draw_wins(struct Win * w);
+
+/* Append/suspend window "w" to/from chain of visible windows. Appended windows
+ * will become active. Suspended active windows will move the active window
+ * selection to their successor in the window chain or, failing that, their
+ * predecessor, or, failing that, to 0 (no window active).
+ */
+static void append_win(struct Win * w);
+static void suspend_win(struct Win * w);
+
+/* Copy Win content pointed to by "win" into appendend world.windb.wins area. */
+static void add_win_to_windb(struct Win * win);
+
+
+
+static uint8_t get_pos_in_order(char c)
+{
+    uint8_t i;
+    for (i = 0; c != world.windb.order[i]; i++);
+    return i;
+}
+
+
 
+static struct Win * get_win_after(char c)
+{
+    return get_win_by_id(world.windb.order[get_pos_in_order(c) + 1]);
+}
 
 
-static void refit_pad()
+
+static struct Win * get_win_before(char c)
+{
+    uint8_t i = get_pos_in_order(c);
+    if (i > 0)
+    {
+        return get_win_by_id(world.windb.order[i - 1]);
+    }
+    return NULL;
+}
+
+
+
+static void init_win_size_from_winconf_and_v_screen_size(char id)
+{
+    struct Win * w = get_win_by_id(id);
+    w->frame_size.y  = world.windb.v_screen_size.y - 1;
+    if      (   0 < w->target_height
+             && w->target_height <= world.windb.v_screen_size.y - 1)
+    {
+        w->frame_size.y = w->target_height;
+    }
+    else if (   0 > w->target_height
+             && world.windb.v_screen_size.y + (w->target_height - 1) > 0)
+    {
+        w->frame_size.y = world.windb.v_screen_size.y + (w->target_height - 1);
+    }
+    w->frame_size.x  = world.windb.v_screen_size.x;
+    if      (0 < w->target_width)
+    {
+        w->frame_size.x = w->target_width;
+    }
+    else if (   0 > w->target_width
+             && world.windb.v_screen_size.x + w->target_width > 0)
+    {
+        w->frame_size.x = world.windb.v_screen_size.x + w->target_width;
+    }
+}
+
+
+
+static uint8_t match_func(char c, void (** f) (), char c_m, void (* f_m) ())
+{
+    if (c == c_m)
+    {
+        * f = f_m;
+        return 1;
+    }
+    return 0;
+}
+
+
+
+static void * get_drawfunc_by_char(char c)
+{
+    void (* f) (struct Win *) = NULL;
+    if (   match_func(c, &f, 'c', draw_win_inventory)
+        || match_func(c, &f, 'i', draw_win_info)
+        || match_func(c, &f, 'l', draw_win_log)
+        || match_func(c, &f, 'k', draw_win_available_keybindings)
+        || match_func(c, &f, 'm', draw_win_map)
+        || match_func(c, &f, '0', draw_win_keybindings_global)
+        || match_func(c, &f, '1', draw_win_keybindings_winconf_geometry)
+        || match_func(c, &f, '2', draw_win_keybindings_winconf_keybindings));
+    return f;
+}
+
+
+
+static void set_win_target_size(struct Win * wcp)
+{
+    if      (0 == wcp->target_height_type)
+    {
+        wcp->target_height = wcp->frame_size.y;
+    }
+    else if (1 == wcp->target_height_type)
+    {
+        wcp->target_height = wcp->frame_size.y - world.windb.v_screen_size.y +1;
+    }
+    if      (0 == wcp->target_width_type)
+    {
+        wcp->target_width = wcp->frame_size.x;
+    }
+    else if (1 == wcp->target_width_type)
+    {
+        wcp->target_width = wcp->frame_size.x - world.windb.v_screen_size.x;
+    }
+}
+
+
+
+static char get_next_win_id()
+{
+    static uint8_t i = 0;
+    char c = world.windb.ids[i];
+    if (0 == c)
+    {
+        i = 0;
+        return c;
+    }
+    i++;
+    return c;
+}
+
+
+
+static void refit_v_screen()
 {
     /* Determine rightmost window column. */
     uint32_t lastwcol = 0;
-    struct Win * wp = world.wins.chain_start;
+    struct Win * wp = get_win_by_id(world.windb.order[0]);
     while (wp != 0)
     {
-        if ((uint32_t) wp->start.x + (uint32_t) wp->framesize.x > lastwcol + 1)
+        if ((uint32_t) wp->start.x + (uint32_t) wp->frame_size.x > lastwcol + 1)
         {
-            lastwcol = (uint32_t) wp->start.x + (uint32_t) wp->framesize.x - 1;
+            lastwcol = (uint32_t) wp->start.x + (uint32_t) wp->frame_size.x - 1;
         }
-        wp = wp->next;
+        wp = get_win_after(wp->id);
     }
 
-    /* Only resize the pad if the rightmost window column has changed. */
-    char * err_s = "refit_pad() extends virtual screen beyond legal sizes.";
-    char * err_m = "refit_pad() triggers memory alloc error via wresize().";
-    if (getmaxx(world.wins.pad) + 1 != lastwcol)
+    /* Only resize .v_screen if the rightmost window column has changed. */
+    char * err_s = "refit_v_screen() grows virtual screen beyond legal sizes.";
+    char * err_m = "refit_v_screen() triggers memory alloc error in wresize().";
+    if (getmaxx(world.windb.v_screen) + 1 != lastwcol)
     {
         uint8_t t = (lastwcol + 2 > UINT16_MAX);
         exit_err(t, err_s);
-        t = wresize(world.wins.pad, getmaxy(world.wins.pad), lastwcol + 2);
+        t = wresize(world.windb.v_screen, getmaxy(world.windb.v_screen),
+                    lastwcol + 2);
         exit_err(t, err_m);
     }
 }
@@ -90,10 +258,11 @@ static void refit_pad()
 static void update_wins(struct Win * w)
 {
     place_win(w);
-    refit_pad();
-    if (0 != w->next)
+    refit_v_screen();
+    struct Win * next = get_win_after(w->id);
+    if (next)
     {
-        update_wins(w->next);
+        update_wins(next);
     }
 }
 
@@ -104,24 +273,25 @@ static void place_win(struct Win * w)
     /* If w is first window, it goes into the top left corner. */
     w->start.x = 0;
     w->start.y = 1;                             /* Leave space for title bar. */
-    if (0 != w->prev)
+    struct Win * w_prev = get_win_before(w->id);
+    if (w_prev)
     {
 
         /* If not, fit w's top left to top right of last top predecessor. */
-        struct Win * w_top = w->prev;
-        while (w_top->start.y != 1)
-        {
-            w_top = w_top->prev;
-        }
-        w->start.x = w_top->start.x + w_top->framesize.x + 1;
+        struct Win * w_top = w_prev;
+        for (;
+             w_top->start.y != 1;
+             w_top = get_win_before(w_top->id));
+        w->start.x = w_top->start.x + w_top->frame_size.x + 1;
 
         /* Fit w's top left to bottom left of its ->prev if enough space. */
-        uint16_t w_prev_maxy = w->prev->start.y + w->prev->framesize.y;
-        if (   w->framesize.x <= w->prev->framesize.x
-            && w->framesize.y <  world.wins.padsize.y - w_prev_maxy)
+        uint16_t w_prev_maxy = w_prev->start.y + w_prev->frame_size.y;
+        if (   w->frame_size.x <= w_prev->frame_size.x
+            && w->frame_size.y <  world.windb.v_screen_size.y - w_prev_maxy)
         {
-            w->start.x = w->prev->start.x;
+            w->start.x = w_prev->start.x;
             w->start.y = w_prev_maxy + 1;
+            return;
         }
 
         /* Failing that, try to fit w' top left to the top right of the last
@@ -130,26 +300,24 @@ static void place_win(struct Win * w)
          * until the bottom right of w_thr directly throning over it 3) and with
          * this same space extending far enough to the bottom for fitting in w.
          */
-        else
+        struct Win * w_test = w_prev;
+        struct Win * w_thr;
+        while (w_test != w_top)
         {
-            struct Win * w_test = w->prev;
-            struct Win * w_thr;
-            while (w_test != w_top)
+            for (w_thr = get_win_before(w_test->id);
+                 w_test->start.y <= w_thr->start.y;
+                 w_thr = get_win_before(w_thr->id));
+            uint16_t w_thr_bottom = w_thr->start.y + w_thr->frame_size.y;
+            uint16_t free_width =   (w_thr->start.x + w_thr->frame_size.x)
+                                  - (w_test->start.x + w_test->frame_size.x);
+            if (   w->frame_size.y < world.windb.v_screen_size.y - w_thr_bottom
+                && w->frame_size.x < free_width)
             {
-                w_thr = w_test->prev;
-                for (; w_test->start.y <= w_thr->start.y; w_thr = w_thr->prev);
-                uint16_t w_thr_bottom = w_thr->start.y + w_thr->framesize.y;
-                uint16_t free_width = (w_thr->start.x + w_thr->framesize.x)
-                                      - (w_test->start.x + w_test->framesize.x);
-                if (   w->framesize.y < world.wins.padsize.y - w_thr_bottom
-                    && w->framesize.x < free_width)
-                {
-                    w->start.x = w_test->start.x + w_test->framesize.x + 1;
-                    w->start.y = w_thr_bottom + 1;
-                    break;
-                }
-                w_test = w_thr;
+                w->start.x = w_test->start.x + w_test->frame_size.x + 1;
+                w->start.y = w_thr_bottom + 1;
+                break;
             }
+            w_test = w_thr;
         }
     }
 }
@@ -196,23 +364,14 @@ static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist,
         }
         if ('<' == dir || '>' == dir)
         {
-            mvwaddch(world.wins.pad, start.y + q, start.x + draw_offset, c);
+            mvwaddch(world.windb.v_screen, start.y+q, start.x+draw_offset, c);
             continue;
         }
-        mvwaddch(world.wins.pad, start.y + draw_offset, start.x + q, c);
+        mvwaddch(world.windb.v_screen, start.y + draw_offset, start.x + q, c);
     }
 }
 
 
-static void padscroll_hint(char dir, uint16_t dist)
-{
-    struct yx_uint16 start;
-    start.y = 0;
-    start.x = world.wins.pad_offset;
-    scroll_hint(world.wins.padsize, dir, dist, "columns", start);
-}
-
-
 
 static void winscroll_hint(struct Win * w, char dir, uint16_t dist)
 {
@@ -222,52 +381,7 @@ static void winscroll_hint(struct Win * w, char dir, uint16_t dist)
         unit = "columns";
     }
     struct yx_uint16 start = w->start;
-    scroll_hint(w->framesize, dir, dist, unit, start);
-}
-
-
-
-static void draw_wins(struct Win * w)
-{
-    w->draw(w);
-    uint16_t size_y = w->winmapsize.y;
-    uint16_t size_x = w->winmapsize.x;
-    uint16_t offset_y = center_offset(w->center.y, size_y, w->framesize.y);
-    uint16_t offset_x = center_offset(w->center.x, size_x, w->framesize.x);
-    uint16_t y, x;
-    for (y = offset_y; y < w->framesize.y + offset_y && y < size_y; y++)
-    {
-        for (x = offset_x; x < w->framesize.x + offset_x && x < size_x; x++)
-        {
-            chtype ch = w->winmap[(y * w->winmapsize.x) + x];
-            mvwaddch(world.wins.pad, w->start.y + (y - offset_y),
-                                     w->start.x + (x - offset_x), ch);
-        }
-    }
-    free(w->winmap);
-    w->winmap = NULL;
-    w->winmapsize.y = 0;
-    w->winmapsize.x = 0;
-    if (offset_y > 0)
-    {
-        winscroll_hint(w, '^', offset_y + 1);
-    }
-    if (size_y > offset_y + w->framesize.y)
-    {
-        winscroll_hint(w, 'v', size_y - ((offset_y + w->framesize.y) - 1));
-    }
-    if (offset_x > 0)
-    {
-        winscroll_hint(w, '<', offset_x + 1);
-    }
-    if (size_x > offset_x + w->framesize.x)
-    {
-        winscroll_hint(w, '>', size_x - ((offset_x + w->framesize.x) - 1));
-    }
-    if (0 != w->next)
-    {
-        return draw_wins(w->next);
-    }
+    scroll_hint(w->frame_size, dir, dist, unit, start);
 }
 
 
@@ -276,38 +390,37 @@ static void draw_win_borderlines(struct Win * w)
 {
     /* Draw vertical and horizontal border lines. */
     uint16_t y, x;
-    for (y = w->start.y; y <= w->start.y + w->framesize.y; y++)
+    for (y = w->start.y; y <= w->start.y + w->frame_size.y; y++)
     {
-        mvwaddch(world.wins.pad, y, w->start.x - 1,              '|');
-        mvwaddch(world.wins.pad, y, w->start.x + w->framesize.x, '|');
+        mvwaddch(world.windb.v_screen, y, w->start.x - 1,              '|');
+        mvwaddch(world.windb.v_screen, y, w->start.x + w->frame_size.x, '|');
     }
-    for (x = w->start.x; x <= w->start.x + w->framesize.x; x++)
+    for (x = w->start.x; x <= w->start.x + w->frame_size.x; x++)
     {
-        mvwaddch(world.wins.pad, w->start.y - 1,              x, '-');
-        mvwaddch(world.wins.pad, w->start.y + w->framesize.y, x, '-');
+        mvwaddch(world.windb.v_screen, w->start.y - 1,              x, '-');
+        mvwaddch(world.windb.v_screen, w->start.y + w->frame_size.y, x, '-');
     }
 
     /* Draw as much as possible of the title into center of top border line. */
-    char min_title_length_visible = 3;  /* min. 1 char + 2 padding/decoration */
-    if (w->framesize.x >= min_title_length_visible)
+    uint8_t min_title_length_visible = 3;/* min. 1 char +2 padding/decoration*/
+    if (w->frame_size.x >= min_title_length_visible)
     {
-        uint16_t title_offset = 0;
-        if (w->framesize.x > strlen(w->title) + 2)
+        uint16_t offset = 0;
+        if (w->frame_size.x > strlen(w->title) + 2)
         {
-            title_offset = (w->framesize.x - (strlen(w->title) + 2)) / 2;
+            offset = (w->frame_size.x - (strlen(w->title) + 2)) / 2;
         }                                    /* +2 is for padding/decoration */
-        uint16_t length_visible = strnlen(w->title, w->framesize.x - 2);
+        uint16_t length_visible = strnlen(w->title, w->frame_size.x - 2);
         char title[length_visible + 3];
         char decoration = ' ';
-        if (w == world.wins.win_active)
+        if (w->id == world.windb.active)
         {
             decoration = '$';
         }
         memcpy(title + 1, w->title, length_visible);
         title[0] = title[length_visible + 1] = decoration;
         title[length_visible + 2] = '\0';
-        mvwaddstr(world.wins.pad,
-                  w->start.y - 1, w->start.x + title_offset, title);
+        mvwaddstr(world.windb.v_screen, w->start.y-1, w->start.x+offset, title);
     }
 }
 
@@ -316,9 +429,10 @@ static void draw_win_borderlines(struct Win * w)
 static void draw_wins_borderlines(struct Win * w)
 {
     draw_win_borderlines(w);
-    if (0 != w->next)
+    struct Win * next = get_win_after(w->id);
+    if (next)
     {
-        draw_wins_borderlines(w->next);
+        draw_wins_borderlines(next);
     }
 }
 
@@ -326,324 +440,556 @@ static void draw_wins_borderlines(struct Win * w)
 
 static void draw_wins_bordercorners(struct Win * w)
 {
-    mvwaddch(world.wins.pad, w->start.y - 1, w->start.x - 1, '+');
-    mvwaddch(world.wins.pad, w->start.y - 1, w->start.x + w->framesize.x, '+');
-    mvwaddch(world.wins.pad, w->start.y + w->framesize.y, w->start.x - 1, '+');
-    mvwaddch(world.wins.pad, w->start.y + w->framesize.y,
-             w->start.x + w->framesize.x, '+');
-    if (0 != w->next)
-    {
-        draw_wins_bordercorners(w->next);
+    mvwaddch(world.windb.v_screen,
+             w->start.y - 1, w->start.x - 1,              '+');
+    mvwaddch(world.windb.v_screen,
+             w->start.y - 1, w->start.x + w->frame_size.x, '+');
+    mvwaddch(world.windb.v_screen,
+             w->start.y + w->frame_size.y, w->start.x - 1, '+');
+    mvwaddch(world.windb.v_screen, w->start.y + w->frame_size.y,
+             w->start.x + w->frame_size.x,                 '+');
+    struct Win * next = get_win_after(w->id);
+    if (next)
+    {
+        draw_wins_bordercorners(next);
     }
 }
 
 
 
-static void shift_win_forward()
+static void draw_wins(struct Win * w)
 {
-    if (world.wins.win_active == world.wins.chain_end)
+    void (* drawfunc) (struct Win *) = get_drawfunc_by_char(w->id);
+    if      (1 == w->view)
     {
-        world.wins.chain_end = world.wins.win_active->prev;
-        world.wins.chain_end->next = 0;
-        world.wins.win_active->next = world.wins.chain_start;
-        world.wins.win_active->next->prev = world.wins.win_active;
-        world.wins.chain_start = world.wins.win_active;
-        world.wins.chain_start->prev = 0;
+        drawfunc = draw_winconf_geometry;
     }
-    else
+    else if (2 == w->view)
     {
-        struct Win * old_prev = world.wins.win_active->prev;
-        struct Win * old_next = world.wins.win_active->next;
-        if (world.wins.chain_end == world.wins.win_active->next)
-        {
-            world.wins.chain_end = world.wins.win_active;
-            world.wins.win_active->next = 0;
-        }
-        else
-        {
-            world.wins.win_active->next = old_next->next;
-            world.wins.win_active->next->prev = world.wins.win_active;
-        }
-        if (world.wins.chain_start == world.wins.win_active)
-        {
-            world.wins.chain_start = old_next;
-        }
-        else
+        drawfunc = draw_winconf_keybindings;
+    }
+    drawfunc(w);
+    uint16_t size_y = w->winmap_size.y;
+    uint16_t size_x = w->winmap_size.x;
+    uint16_t offset_y = center_offset(w->center.y, size_y, w->frame_size.y);
+    uint16_t offset_x = center_offset(w->center.x, size_x, w->frame_size.x);
+    uint16_t y, x;
+    for (y = offset_y; y < w->frame_size.y + offset_y && y < size_y; y++)
+    {
+        for (x = offset_x; x < w->frame_size.x + offset_x && x < size_x; x++)
         {
-            old_prev->next = old_next;
+            chtype ch = w->winmap[(y * w->winmap_size.x) + x];
+            mvwaddch(world.windb.v_screen, w->start.y + (y - offset_y),
+                                      w->start.x + (x - offset_x), ch);
         }
-        old_next->prev = old_prev;
-        old_next->next = world.wins.win_active;
-        world.wins.win_active->prev = old_next;
+    }
+    free(w->winmap);
+    w->winmap = NULL;
+    w->winmap_size.y = 0;
+    w->winmap_size.x = 0;
+    if (offset_y > 0)
+    {
+        winscroll_hint(w, '^', offset_y + 1);
+    }
+    if (size_y > offset_y + w->frame_size.y)
+    {
+        winscroll_hint(w, 'v', size_y - ((offset_y + w->frame_size.y) - 1));
+    }
+    if (offset_x > 0)
+    {
+        winscroll_hint(w, '<', offset_x + 1);
+    }
+    if (size_x > offset_x + w->frame_size.x)
+    {
+        winscroll_hint(w, '>', size_x - ((offset_x + w->frame_size.x) - 1));
+    }
+    struct Win * next = get_win_after(w->id);
+    if (next)
+    {
+        return draw_wins(next);
     }
 }
 
 
 
-static void shift_win_backward()
+static void append_win(struct Win * w)
 {
-    if (world.wins.win_active == world.wins.chain_start)
-    {
-        world.wins.chain_start = world.wins.win_active->next;
-        world.wins.chain_start->prev = 0;
-        world.wins.win_active->prev = world.wins.chain_end;
-        world.wins.win_active->prev->next = world.wins.win_active;
-        world.wins.chain_end = world.wins.win_active;
-        world.wins.chain_end->next = 0;
+    char * f_name = "append_win()";
+    uint8_t old_size = strlen(world.windb.order) + 1;
+    char * new_order = try_malloc(old_size + 1, f_name);
+    memcpy(new_order, world.windb.order, old_size - 1);
+    new_order[old_size - 1] = w->id;
+    new_order[old_size] = '\0';
+    free(world.windb.order);
+    world.windb.order = new_order;
+    world.windb.active = w->id;
+    update_wins(w);
+}
+
+
+
+static void suspend_win(struct Win * w)
+{
+    char * f_name = "suspend_win()";
+    uint8_t new_size = strlen(world.windb.order);
+    char * new_order = try_malloc(new_size, f_name);
+    uint8_t i = get_pos_in_order(w->id);
+    char next_char = world.windb.order[i + 1];
+    world.windb.order[i] = '\0';
+    char * second_part = &world.windb.order[i + 1];
+    sprintf(new_order, "%s%s", world.windb.order, second_part);
+    free(world.windb.order);
+    world.windb.order = new_order;
+    world.windb.active = world.windb.order[i];
+    if (!world.windb.order[i] && 0 < i)
+    {
+        world.windb.active = world.windb.order[i - 1];
+    }
+    if (world.windb.order[i])
+    {
+        update_wins(get_win_by_id(next_char)); /* Already calls               */
+        return;                                /* refit_v_screen(), so leave. */
+    }
+    refit_v_screen();
+}
+
+
+
+static void add_win_to_windb(struct Win * win)
+{
+    char * f_name = "add_win_to_windb()";
+    if (world.windb.ids)
+    {
+        uint8_t old_ids_size = strlen(world.windb.ids);
+        char * new_ids = try_malloc(old_ids_size + 1 + 1, f_name);
+        sprintf(new_ids, "%s%c", world.windb.ids, win->id);
+        free(world.windb.ids);
+        world.windb.ids = new_ids;
+        uint16_t old_wins_size = old_ids_size * sizeof(struct Win);
+        uint16_t new_wins_size = old_wins_size + sizeof(struct Win);
+        struct Win * new_wins = try_malloc(new_wins_size, f_name);
+        memcpy(new_wins, world.windb.wins, old_wins_size);
+        new_wins[old_ids_size] = *win;
+        free(world.windb.wins);
+        world.windb.wins = new_wins;
+        return;
     }
-    else
+    world.windb.ids = try_malloc(2, f_name);
+    sprintf(world.windb.ids, "%c", win->id);
+    world.windb.wins = try_malloc(sizeof(struct Win), f_name);
+    world.windb.wins[0] = *win;
+}
+
+
+
+extern uint16_t center_offset(uint16_t position, uint16_t mapsize,
+                              uint16_t frame_size)
+{
+    uint16_t offset = 0;
+    if (mapsize > frame_size)
     {
-        struct Win * old_prev = world.wins.win_active->prev;
-        struct Win * old_next = world.wins.win_active->next;
-        if (world.wins.chain_start == world.wins.win_active->prev)
-        {
-            world.wins.chain_start = world.wins.win_active;
-            world.wins.win_active->prev = 0;
-        }
-        else
-        {
-            world.wins.win_active->prev = old_prev->prev;
-            world.wins.win_active->prev->next = world.wins.win_active;
-        }
-        if (world.wins.chain_end == world.wins.win_active)
+        if (position > frame_size / 2)
         {
-            world.wins.chain_end = old_prev;
+            if (position < mapsize - (frame_size / 2))
+            {
+                offset = position - (frame_size / 2);
+            }
+            else
+            {
+                offset = mapsize - frame_size;
+            }
         }
-        else
+    }
+    return offset;
+}
+
+
+
+extern struct Win * get_win_by_id(char id)
+{
+    uint8_t i = 0;
+    while ('\0' != world.windb.ids[i])
+    {
+        if (id == world.windb.ids[i])
         {
-            old_next->prev = old_prev;
+            return &world.windb.wins[i];
         }
-        old_prev->next = old_next;
-        old_prev->prev = world.wins.win_active;
-        world.wins.win_active->next = old_prev;
+        i++;
     }
+    return NULL;
 }
 
 
 
-extern void make_pad()
+extern uint8_t read_winconf_from_file(char * line, uint32_t linemax,
+                                      FILE * file)
 {
-    char * err_s = "make_pad() creates an illegaly large virtual screen.";
-    char * err_m = "make_pad() triggers memory allocation error via newpad().";
-    uint32_t maxy_test = getmaxy(world.wins.screen);
-    uint32_t maxx_test = getmaxx(world.wins.screen);
-    exit_err(maxy_test > UINT16_MAX || maxx_test > UINT16_MAX, err_s);
-    world.wins.padsize.y = maxy_test;
-    world.wins.padsize.x = maxx_test;
-    world.wins.pad = newpad(world.wins.padsize.y, 1);
-    exit_err(NULL == world.wins.pad, err_m);
+    char * f_name = "read_winconf_from_file()";
+    int test = try_fgetc(file, f_name);
+    if (EOF == test)
+    {
+        return 0;
+    }
+    struct Win win;
+    win.id = (char) test;
+    try_fgetc(file, f_name);
+    try_fgets(line, linemax + 1, file, f_name);
+    win.title = try_malloc(strlen(line), f_name);
+    memcpy(win.title, line, strlen(line) - 1);  /* Eliminate newline char */
+    win.title[strlen(line) - 1] = '\0';         /* char at end of string. */
+    try_fgets(line, linemax + 1, file, f_name);
+    win.target_height = atoi(line);
+    win.target_height_type = (0 >= win.target_height);
+    try_fgets(line, linemax + 1, file, f_name);
+    win.target_width = atoi(line);
+    win.target_width_type = (0 >= win.target_width);
+    read_keybindings_from_file(line, linemax, file, &win.kb);
+    win.view = 0;
+    win.target_center.y = 0;
+    win.target_center.x = 0;
+    win.winmap_size.y = 0;
+    win.winmap_size.x = 0;
+    win.winmap       = NULL;
+    win.center.y     = 0;
+    win.center.x     = 0;
+    add_win_to_windb(&win);
+    return 1;
 }
 
 
 
-extern void init_win(struct Win ** wp, char * title, int16_t height,
-                     int16_t width, void * func)
+extern void write_winconf_of_id_to_file(FILE * file, char c, char * delim)
 {
-    char * f_name = "init_win()";
-    struct Win * w  = try_malloc(sizeof(struct Win), f_name);
-    w->prev         = 0;
-    w->next         = 0;
-    w->winmapsize.y = 0;
-    w->winmapsize.x = 0;
-    w->winmap       = NULL;
-    w->title        = try_malloc(strlen(title) + 1, f_name);
-    sprintf(w->title, "%s", title);
-    w->draw         = func;
-    w->center.y     = 0;
-    w->center.x     = 0;
-    w->framesize.y  = world.wins.padsize.y - 1;
-    if      (0 < height && height <= world.wins.padsize.y - 1)
-    {
-        w->framesize.y = height;
-    }
-    else if (0 > height && world.wins.padsize.y + (height - 1) > 0)
-    {
-        w->framesize.y = world.wins.padsize.y + (height - 1);
-    }
-    w->framesize.x  = world.wins.padsize.x;
-    if      (0 < width)
-    {
-        w->framesize.x = width;
-    }
-    else if (0 > width && world.wins.padsize.x + width > 0)
-    {
-        w->framesize.x = world.wins.padsize.x + width;
-    }
-    *wp = w;
+    char * f_name = "write_winconf_of_id_to_file()";
+    struct Win * wc = get_win_by_id(c);
+    uint8_t size = strlen(wc->title) + 2;
+    if (size < 7)  /* Ensure that at least 5 + 2 char fit into line so that   */
+    {              /* the digit representation of any uint16_t may be stored. */
+        size = 7;
+    }
+    char line[size];
+    sprintf(line, "%c\n", wc->id);
+    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+    sprintf(line, "%s\n", wc->title);
+    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+    sprintf(line, "%d\n", wc->target_height);
+    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+    sprintf(line, "%d\n", wc->target_width);
+    try_fwrite(line, sizeof(char), strlen(line), file, f_name);
+    write_keybindings_to_file(file, &wc->kb, delim);
 }
 
 
 
-extern void free_win(struct Win * win)
+extern void read_order_wins_visible_active(char * line, uint32_t linemax,
+                                           FILE * file)
 {
-    free(win->title);
-    free(win);
+    char * f_name = "read_order_wins_visible_active()";
+    char win_order[linemax + 1];
+    try_fgets(win_order, linemax + 1, file, f_name);
+    win_order[strlen(win_order) - 1] = '\0';
+    world.windb.order = try_malloc(strlen(win_order) + 1, f_name);
+    sprintf(world.windb.order, "%s", win_order);
+    int char_or_eof = try_fgetc(file, f_name);
+    char * err_eof = "fgetc() unexpectedly hitting EOF";
+    exit_trouble(EOF == char_or_eof, f_name, err_eof);
+    world.windb.active = (uint8_t) char_or_eof;
+    exit_trouble(EOF == try_fgetc(file, f_name), f_name, err_eof);
+    try_fgets(line, linemax + 1, file, f_name);
 }
 
 
 
-extern void append_win(struct Win * w)
+extern void write_order_wins_visible_active(FILE * file, char * delim)
 {
-    if (0 != world.wins.chain_start)
-    {
-        w->prev = world.wins.chain_end;
-        world.wins.chain_end->next = w;
+    char * f_name = "write_order_wins_visible_active()";
+    try_fwrite(world.windb.order, strlen(world.windb.order), 1, file, f_name);
+    try_fputc('\n', file, f_name);
+    try_fputc(world.windb.active, file, f_name);
+    try_fputc('\n', file, f_name);
+    try_fwrite(delim, strlen(delim), 1, file, f_name);
+}
+
+
+
+extern void make_v_screen_and_init_win_sizes()
+{
+    char * f_name = "make_v_screen_and_init_win_sizes()";
+    char * err_s = "creating an illegaly large virtual screen";
+    char * err_m = "triggering a memory allocation error via newpad()";
+    uint32_t maxy_test = getmaxy(world.windb.t_screen);
+    uint32_t maxx_test = getmaxx(world.windb.t_screen);
+    exit_trouble(maxy_test>UINT16_MAX || maxx_test>UINT16_MAX, f_name, err_s);
+    world.windb.v_screen_size.y = maxy_test;
+    world.windb.v_screen_size.x = maxx_test;
+    world.windb.v_screen = newpad(world.windb.v_screen_size.y, 1);
+    exit_trouble(NULL == world.windb.v_screen, f_name, err_m);
+    char id;
+    while (0 != (id = get_next_win_id()))
+    {
+        init_win_size_from_winconf_and_v_screen_size(id);
     }
-    else
-    {
-        world.wins.win_active = w;
-        world.wins.chain_start = w;
+}
+
+
+
+extern void free_windb()
+{
+    char id;
+    while (0 != (id = get_next_win_id()))
+    {
+        struct Win * wc = get_win_by_id(id);
+        free(wc->title);
+        free_keybindings(wc->kb.kbs);
+    }
+    free(world.windb.ids);
+    world.windb.ids = NULL;
+    free(world.windb.wins);
+    world.windb.wins = NULL;
+    free(world.windb.order);
+    world.windb.order = NULL;
+}
+
+
+
+extern void winch_called(int signal)
+{
+    world.winch = 1;
+}
+
+
+
+extern void reset_windows_on_winch()
+{
+    endwin();  /* "[S]tandard way" to recalibrate ncurses post SIGWINCH, says */
+    refresh(); /* <http://invisible-island.net/ncurses/ncurses-intro.html>.   */
+    char tmp_order[strlen(world.windb.order) + 1];
+    sprintf(tmp_order, "%s", world.windb.order);
+    uint8_t i;
+    char tmp_active = world.windb.active;
+    for (i = 0; i < strlen(tmp_order); toggle_window(tmp_order[i]), i++);
+    delwin(world.windb.v_screen);
+    make_v_screen_and_init_win_sizes();
+    for (i = 0; i < strlen(tmp_order); toggle_window(tmp_order[i]), i++);
+    world.windb.active = tmp_active;
+}
+
+
+
+extern void draw_all_wins()
+{
+    /* Empty everything before filling it a-new. */
+    erase();
+    wnoutrefresh(world.windb.t_screen);
+    werase(world.windb.v_screen);
+    if (world.windb.active)
+    {
+
+        /* Draw borders, wins. Order matters: corners should overwrite lines. */
+        draw_wins_borderlines(get_win_by_id(world.windb.order[0]));
+        draw_wins_bordercorners(get_win_by_id(world.windb.order[0]));
+        draw_wins(get_win_by_id(world.windb.order[0]));
+
+        /* Draw .v_screen scroll hints. */
+        struct yx_uint16 start;
+        start.y = 0;
+        start.x = world.windb.v_screen_offset;
+        char * cols_string = "columns";
+        if (world.windb.v_screen_offset > 0)
+        {
+            scroll_hint(world.windb.v_screen_size, '<',
+                        world.windb.v_screen_offset + 1, cols_string, start);
+        }
+        uint16_t size_x = getmaxx(world.windb.v_screen);
+        uint16_t right_edge =   world.windb.v_screen_offset
+                              + world.windb.v_screen_size.x;
+        if (right_edge < size_x - 1)
+        {
+            scroll_hint(world.windb.v_screen_size, '>',
+                        size_x - right_edge, cols_string, start);
+        }
+
+        /* Put .v_screen segment to be shown on .t_screen to .t_screen buffer.*/
+        pnoutrefresh(world.windb.v_screen, 0, world.windb.v_screen_offset, 0, 0,
+                     world.windb.v_screen_size.y,
+                     world.windb.v_screen_size.x - 1);
     }
-    world.wins.chain_end = w;
-    update_wins(w);
+
+    /* Only at the end write accumulated changes to .t_screen. */
+    doupdate();
 }
 
 
 
-extern void suspend_win(struct Win * w)
+extern void toggle_window(char id)
 {
-    if (world.wins.chain_start != w)
+    struct Win * win = get_win_by_id(id);
+    if (NULL == strchr(world.windb.order, id))
     {
-        w->prev->next = w->next;
+        append_win(win);
+        return;
     }
-    else
+    suspend_win(win);
+}
+
+
+
+extern void toggle_winconfig()
+{
+    if (!world.windb.active)
     {
-        world.wins.chain_start = w->next;
+        return;
     }
-    uint8_t pad_refitted = 0;
-    if (world.wins.chain_end != w)
+    struct Win * w = get_win_by_id(world.windb.active);
+    if      (0 == w->view)
     {
-        w->next->prev = w->prev;
-        if (world.wins.win_active == w)
-        {
-            world.wins.win_active = w->next;
-        }
-        update_wins(w->next);      /* Positioning of successor windows may be */
-        pad_refitted = 1;          /* affected / need correction. Note that   */
-    }                              /* update_wins() already refits the pad,   */
-    else                           /* voiding later need for that.            */
-    {
-        world.wins.chain_end = w->prev;
-        if (world.wins.win_active == w)
-        {
-            world.wins.win_active = w->prev;
-        }
+        w->view          = 1;
+        w->target_center = w->center;
+        w->center.y      = 0;
+        w->center.x      = 0;
+        return;
     }
-    w->prev = 0;
-    w->next = 0;
-    if (0 == pad_refitted)
+    else if (1 == w->view)
     {
-        refit_pad();
+        w->view          = 2;
+        w->center.x      = 0;
+        return;
     }
+    w->view          = 0;
+    w->center        = w->target_center;
 }
 
 
 
-extern void reset_pad_offset(uint16_t new_offset)
+extern void toggle_win_size_type(char axis)
 {
-    if (new_offset >= 0
-        && (new_offset < world.wins.pad_offset
-            || new_offset + world.wins.padsize.x < getmaxx(world.wins.pad)))
+    struct Win * w = get_win_by_id(world.windb.active);
+    if ('y' == axis)
     {
-        world.wins.pad_offset = new_offset;
+        w->target_height_type = (0 == w->target_height_type);
+        set_win_target_size(w);
+        return;
     }
+    w->target_width_type = (   0 == w->target_width_type
+                            && w->frame_size.x <= world.windb.v_screen_size.x);
+    set_win_target_size(w);
 }
 
 
 
-extern void resize_active_win(struct yx_uint16 size)
+extern void resize_active_win(char change)
 {
-    if (0 != world.wins.win_active
-        && size.x > 0 && size.y > 0 && size.y < world.wins.padsize.y)
+    if (world.windb.active)
     {
-        world.wins.win_active->framesize = size;
-        update_wins(world.wins.win_active);       /* Positioning of following */
-    }                                             /* windows may be affected. */
+        struct Win * w = get_win_by_id(world.windb.active);
+        if      (change == '-' && w->frame_size.y > 1)
+        {
+            w->frame_size.y--;
+        }
+        else if (change == '_' && w->frame_size.y > 1)
+        {
+            w->frame_size.x--;
+        }
+        else if (   change == '+'
+                 && w->frame_size.y < world.windb.v_screen_size.y - 1)
+        {
+            w->frame_size.y++;
+        }
+        else if (change == '*' && w->frame_size.y < UINT16_MAX)
+        {
+            w->frame_size.x++;
+        }
+        if (   1 == w->target_width_type
+            && w->frame_size.x > world.windb.v_screen_size.x)
+        {
+            w->target_width_type = 0;
+        }
+        set_win_target_size(w);
+        update_wins(w);
+    }
 }
 
 
 
-extern void cycle_active_win(char dir)
+extern void shift_active_win(char dir)
 {
-    if (0 != world.wins.win_active)
+    uint8_t len_order = strlen(world.windb.order);
+    if (1 < len_order)
     {
+        char tmp[len_order + 1];
+        tmp[len_order] = '\0';
+        uint8_t pos = get_pos_in_order(world.windb.active);
         if ('f' == dir)
         {
-            if (world.wins.win_active->next != 0)
+            if (pos == len_order - 1)
             {
-                world.wins.win_active = world.wins.win_active->next;
+                memcpy(tmp + 1, world.windb.order, len_order - 1);
+                tmp[0] = world.windb.active;
+                memcpy(world.windb.order, tmp, len_order + 1);
             }
             else
             {
-                world.wins.win_active = world.wins.chain_start;
+                world.windb.order[pos] = world.windb.order[pos + 1];
+                world.windb.order[pos + 1] = world.windb.active;
             }
         }
         else
         {
-            if (world.wins.win_active->prev != 0)
+            if (pos == 0)
             {
-                world.wins.win_active = world.wins.win_active->prev;
+                memcpy(tmp, world.windb.order + 1, len_order - 1);
+                tmp[len_order - 1] = world.windb.active;
+                memcpy(world.windb.order, tmp, len_order + 1);
             }
             else
             {
-                world.wins.win_active = world.wins.chain_end;
+                world.windb.order[pos] = world.windb.order[pos - 1];
+                world.windb.order[pos - 1] = world.windb.active;
             }
         }
+        update_wins(get_win_by_id(world.windb.order[0]));
     }
 }
 
 
 
-extern void shift_active_win(char dir)
+extern void scroll_v_screen(char dir)
 {
-    if (   0 == world.wins.win_active /* No shifting with <2 windows visible. */
-        || world.wins.chain_start == world.wins.chain_end)
+    if      (   '+' == dir
+             &&   world.windb.v_screen_offset + world.windb.v_screen_size.x + 1
+                < getmaxx(world.windb.v_screen))
     {
-        return;
+        world.windb.v_screen_offset++;
     }
-    if ('f' == dir)
+    else if (   '-' == dir
+             && world.windb.v_screen_offset > 0)
     {
-        shift_win_forward();
-        update_wins(world.wins.chain_start);
-        return;
+        world.windb.v_screen_offset--;
     }
-    shift_win_backward();
-    update_wins(world.wins.chain_start);
 }
 
 
 
-extern void draw_all_wins()
+extern void cycle_active_win(char dir)
 {
-    /* Empty everything before filling it a-new. */
-    erase();
-    wnoutrefresh(world.wins.screen);
-    werase(world.wins.pad);
-    if (world.wins.chain_start)
+    uint8_t len_order = strlen(world.windb.order);
+    if (1 < len_order)
     {
-
-        /* Draw windows' borders first, then windows. */
-        draw_wins_borderlines(world.wins.chain_start);
-        draw_wins_bordercorners(world.wins.chain_start);
-        draw_wins(world.wins.chain_start);
-
-        /* Draw virtual screen scroll hints. */
-        if (world.wins.pad_offset > 0)
+        uint8_t pos = get_pos_in_order(world.windb.active);
+        if ('f' == dir)
         {
-            padscroll_hint('<', world.wins.pad_offset + 1);
+            world.windb.active = world.windb.order[pos + 1];
+            if ('\0' == world.windb.active)
+            {
+                world.windb.active = world.windb.order[0];
+            }
+            return;
         }
-        uint16_t size_x = getmaxx(world.wins.pad);
-        uint16_t right_edge = world.wins.pad_offset + world.wins.padsize.x;
-        if (right_edge < size_x - 1)
+        if (pos > 0)
         {
-            padscroll_hint('>', size_x - right_edge);
+            world.windb.active = world.windb.order[pos - 1];
+            return;
         }
-
-        /* Write pad segment to be shown on physical screen to screen buffer. */
-        pnoutrefresh(world.wins.pad, 0, world.wins.pad_offset, 0, 0,
-                     world.wins.padsize.y, world.wins.padsize.x - 1);
+        world.windb.active = world.windb.order[len_order - 1];
     }
-
-    /* Only at the end write accumulated changes to the physical screen. */
-    doupdate();
 }
diff --git a/src/client/windows.h b/src/client/windows.h
index 2f82667..d8da5be 100644
--- a/src/client/windows.h
+++ b/src/client/windows.h
@@ -24,91 +24,123 @@
 #ifndef WINDOWS_H
 #define WINDOWS_H
 
-#include <ncurses.h> /* chtype */
-#include <stdint.h> /* uint16_t, int16_t */
+#include <ncurses.h> /* WINDOW, chtype */
+#include <stdint.h> /* uint8_t, int16_t, uint16_t */
+#include "keybindings.h" /* struct KeyBindingDB */
 #include "../common/yx_uint16.h" /* yx_uint16 struct */
 
 
 
-/* "Win" structs describe windows as frames located inside the virtual screen
- * pad through which "winmaps" are visible, 2-dimensional maps of ncurses
- * chtypes. If a winmap is bigger than its frame, scrolling hints will appear at
- * the proper edges. Win structs are chained into a linked list of all the
- * windows visible on the virtual screen and also contain pointers to what
- * content is to be drawn inside the window, and by use of what method.
- */
-struct Win
+struct WinDB
 {
-    struct Win * prev;  /* chain pointers; if 0, they mark the start or end  */
-    struct Win * next;  /* of the chain; if both are 0, Win is outside chain */
-    struct yx_uint16 framesize;   /* window frame size to see winmap through */
-    struct yx_uint16 start;       /* upper left corner of window in pad */
-    struct yx_uint16 center;      /* winmap cell to center frame on if smaller*/
-    char * title;                 /* title to be used in window title bar */
-    void (* draw) (struct Win *); /* function that draws/updates the winmap */
-    chtype * winmap;              /* sequence of cells, sorted into lines ... */
-    struct yx_uint16 winmapsize;  /* ... with these geometry infos */
+    WINDOW * t_screen; /* ncurses' pointer to the terminal screen */
+    WINDOW * v_screen; /* virtual screen (ncurses pad) */
+    struct Win * wins; /* array of windows */
+    struct yx_uint16 v_screen_size; /* virtual screen size */
+    char * ids; /* all windows' ids, followed by \0 */
+    char * order; /* visible windows' id's order, followed by \0 */
+    uint16_t v_screen_offset; /* how many cells v_screen view moved rightwards*/
+    char active; /* id of window selected as active */
 };
 
+struct Win
+{
+    struct KeyBindingDB kb; /* window-specific keybindings */
+    char * title; /* title to be used in window title bar */
+    struct yx_uint16 target_center; /* saves .center when toggling .view */
+    struct yx_uint16 frame_size; /* size of window/frame to see winmap through*/
+    struct yx_uint16 start; /* upper left corner of window in v_screen */
+    struct yx_uint16 center; /* winnap cell to center frame on if < winmap */
+    struct yx_uint16 winmap_size; /* delimits .winmap, sorts it into lines */
+    chtype * winmap; /* window content in sequence of chtype's to write */
+    int16_t target_height; /* window size / .frame_size description in config */
+    int16_t target_width;  /* file format, i.e. values <= 0 may be used      */
+    char id; /* Win identifier; also maps to default window drawing function. */
+    uint8_t target_height_type; /* 0: read .height/.width as positive size; */
+    uint8_t target_width_type;  /* 1: as negative diff to v_screen size     */
+    uint8_t view; /* winde view mode: 0: use default draw function set by .id */
+};                /* 1/2: use one of the two config view draw function */
+
+
+
+/* Return yx offset to focus map of "mapsize" on "position" in "frame_size". */
+extern uint16_t center_offset(uint16_t position,
+                              uint16_t mapsize, uint16_t frame_size);
+
+/* Get Win of "id". */
+extern struct Win * get_win_by_id(char id);
+
+/* Read/write individual Win (identified by "c") and world.windb.order /
+ * world.windb.active from/to "file". Follow writing with "delim" delimiter.
+ * Use "line" and "linemax" as expected by try_fgets().
+ */
+extern uint8_t read_winconf_from_file(char * line, uint32_t linemax,
+                                      FILE * file);
+extern void write_winconf_of_id_to_file(FILE * file, char c, char * delim);
+extern void read_order_wins_visible_active(char * line, uint32_t linemax,
+                                           FILE * file);
+extern void write_order_wins_visible_active(FILE * file, char * delim);
+
+/* Builds virtual sreen from .t_screen's size, fits win's sizes to them.*/
+extern void make_v_screen_and_init_win_sizes();
+
+/* Free all WinDB data. */
+extern void free_windb();
+
+/* The SIGWINCH handler winch_called() merely sets world.winch to 1. This info
+ * is used by io_loop() to call reset_windows_on_winch(), which adapts the
+ * currently loaded interface configuration to the new .t_screen size.
+ */
+extern void winch_called();
+extern void reset_windows_on_winch();
 
+/* Draw .v_screen and its windows. Add scroll hints where edges of .t_screen hit
+ * .non-edges inside the virtual screen. Then update .t_screen.
+ */
+extern void draw_all_wins();
 
-/* Builds world.wins.pad from the sizes of the current terminal screen. */
-extern void make_pad();
+/* Toggle display of a window of "id". */
+extern void toggle_window(char id);
 
-/* Initialize a Win at "wp" to "title", "height" and "width" and appoint
- * "func"() as its .draw. Initialize other members to 0.
- *
- * Pass 0 for "width" to make the window as wide as the terminal screen. Pass 0
- * for "height" for the maximum allowed height: one cell smaller than that of
- * the terminal screen. Pass negative values for either of them to make the
- * window width/height so many cells smaller than what 0 would set. Values that
- * that would reduce the window height or width to less than 1 cell according to
- * the aforementioned rules set the height/width as if they were set to 0.
+/* Toggle "window configuration" view for active window. Sets sensible .center
+ * values for each configuration view (for winconf_geometry: y=0, x=0; for
+ * winconf_keys: x=0 (y is set by draw_winconf_keybindings()); stores default
+ * view's .center in .target_center to return to it when toggling back.
  */
-extern void init_win(struct Win ** wp, char * title, int16_t height,
-                     int16_t width, void * func);
+extern void toggle_winconfig();
 
-/* Free memory initianized Win structs. */
-extern void free_win(struct Win * win);
+/* Toggle active window's .target_(height/width)_type ("axis" = "y": height;
+ * else: width). Don't toggle to .target_width_type of 1 (saving the width as a
+ * diff to the .t_screen's width) if window's width is larger than .t_screen's
+ * width, for such width is better saved directly with .target_width_type of 0.
+ */
+extern void toggle_win_size_type(char axis);
 
-/* Append/suspend window "w" to/from chain of visible windows. Appended windows
- * will become active. Suspended active windows will move the active window
- * selection to their successor in the window chain or, failing that, their
- * predecessor, or, failing that, to 0 (no window active).
+/* Grow or shrink active window horizontally ("change" = "*"/"_") or vertically
+ * ("change" = "+"/"-") if the new size was at least 1x1, the height at least
+ * one cell smaller than .v_screen's vertical hight (to provide space for the
+ * title bar) and the width max. (2^16) - 1 cells. If a new window width would
+ * surpass that of .t_screen, set active window's .target_width_type to 0.
  */
-extern void append_win(struct Win * w);
-extern void suspend_win(struct Win * w);
+extern void resize_active_win(char c);
 
-/* Apply scrolling offset "new_offset" to virtual screen if it is equal/greater
- * 0 and does not push the view (further) beyond the virtual screen's border. If
- * the view is already beyond the virtual screen's border due to it having
- * shrunk after suspension of windows, only allow screen scrolling leftwards.
+/* Move active window forwards ("dir" == "f") or backwards (any other "dir") in
+ * window chain. Wrap around in the window chain if start / end of it is met.
  */
-extern void reset_pad_offset(uint16_t new_offset);
+extern void shift_active_win(char dir);
 
-/* Apply "size" to the active window if it provides a minimum size of 1x1 cells
- * and is in height at least one cell smaller than the screen's vertical height
- * (to provide space for the title bar). Does nothing if no window is active.
+/* Sroll .v_screen one cell to the left if "dir" is "-" and .v_screen_offset is
+ * more than 1, or to the right if "dir" is "+" and .v_screen's right edge would
+ * not move (further, if suspension of windows has moved it to the left already)
+ * leftwards to .t_screen's right edge.
  */
-extern void resize_active_win(struct yx_uint16 size);
+extern void scroll_v_screen(char dir);
 
 /* Cycle active window selection forwards ("dir" == "f") or backwards (any
  * other "dir"). Wrap around in the windows chain if start / end of it is met.
- * Does nothing if no window is active.
  */
 extern void cycle_active_win(char dir);
 
-/* Move active window forwards ("dir" == "f") or backwards (any other "dir") in
- * the window chain. Wrap around in the window chain if start / end of it is
- * met. Does nothing if no window is active.
- */
-extern void shift_active_win(char dir);
-
-/* Draw virtual screen and its windows. Add scroll hints where edges of terminal
- * screen hit non-edges inside the virtual screen. Then update terminal screen.
- */
-extern void draw_all_wins();
-
 
 
 #endif
diff --git a/src/client/world.h b/src/client/world.h
index fb8ae4d..9e07efa 100644
--- a/src/client/world.h
+++ b/src/client/world.h
@@ -12,13 +12,13 @@
 #include "../common/yx_uint16.h" /* struct yx_uint16 */
 #include "keybindings.h" /* stuct KeyBindingDB */
 #include "command_db.h" /* struct CommandDB */
-#include "wincontrol.h" /* WinConfDB */
+#include "windows.h" /* WinDB */
 
 
 
 struct World
 {
-    struct WinConfDB wins;
+    struct WinDB windb;
     struct CommandDB cmd_db;        /* Command database. */
     struct KeyBindingDB kb_global;    /* Global keybindings. */
     struct KeyBindingDB kb_wingeom;   /* Window geometry config keybindings. */