Introduce tui_data_window::display_all_data method
[deliverable/binutils-gdb.git] / gdb / tui / tui-layout.c
index d7a86d8dc765c71e0b8624b885225f8c2d25e041..9e683cfa9197314aa94427118f1bc36a618eaf74 100644 (file)
@@ -1,6 +1,6 @@
 /* TUI layout window management.
 
-   Copyright (C) 1998-2016 Free Software Foundation, Inc.
+   Copyright (C) 1998-2019 Free Software Foundation, Inc.
 
    Contributed by Hewlett-Packard Company.
 
 ** Static Local Decls
 ********************************/
 static void show_layout (enum tui_layout_type);
-static void init_gen_win_info (struct tui_gen_win_info *, 
-                              enum tui_win_type, 
-                              int, int, int, int);
-static void *init_and_make_win (void *, enum tui_win_type, 
-                               int, int, int, int, int);
+static tui_gen_win_info *init_and_make_win (tui_gen_win_info *,
+                                           enum tui_win_type,
+                                           int, int, int, int,
+                                           enum tui_box);
 static void show_source_or_disasm_and_command (enum tui_layout_type);
-static void make_source_or_disasm_window (struct tui_win_info **, 
-                                         enum tui_win_type, 
-                                         int, int);
-static void make_command_window (struct tui_win_info **, int, int);
-static void make_source_window (struct tui_win_info **, int, int);
-static void make_disasm_window (struct tui_win_info **, int, int);
+static struct tui_win_info *make_source_or_disasm_window (enum tui_win_type, 
+                                                         int, int);
+static struct tui_win_info *make_command_window (int, int);
+static struct tui_win_info *make_source_window (int, int);
+static struct tui_win_info *make_disasm_window (int, int);
 static void make_data_window (struct tui_win_info **, int, int);
 static void show_source_command (void);
 static void show_disasm_command (void);
@@ -62,7 +60,7 @@ static void show_source_disasm_command (void);
 static void show_data (enum tui_layout_type);
 static enum tui_layout_type next_layout (void);
 static enum tui_layout_type prev_layout (void);
-static void tui_layout_command (char *, int);
+static void tui_layout_command (const char *, int);
 static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
 
 
@@ -83,7 +81,6 @@ show_layout (enum tui_layout_type layout)
       /* Since the new layout may cause changes in window size, we
          should free the content and reallocate on next display of
          source/asm.  */
-      tui_free_all_source_wins_content ();
       tui_clear_source_windows ();
       if (layout == SRC_DATA_COMMAND 
          || layout == DISASSEM_DATA_COMMAND)
@@ -156,7 +153,6 @@ tui_set_layout (enum tui_layout_type layout_type)
                case SRC_COMMAND:
                  tui_set_win_focus_to (TUI_SRC_WIN);
                  layout_def->display_mode = SRC_WIN;
-                 layout_def->split = FALSE;
                  break;
                case DISASSEM_COMMAND:
                  /* The previous layout was not showing code.
@@ -170,7 +166,6 @@ tui_set_layout (enum tui_layout_type layout_type)
                  tui_get_begin_asm_address (&gdbarch, &addr);
                  tui_set_win_focus_to (TUI_DISASM_WIN);
                  layout_def->display_mode = DISASSEM_WIN;
-                 layout_def->split = FALSE;
                  break;
                case SRC_DISASSEM_COMMAND:
                  /* The previous layout was not showing code.
@@ -186,7 +181,6 @@ tui_set_layout (enum tui_layout_type layout_type)
                    tui_set_win_focus_to (TUI_SRC_WIN);
                  else
                    tui_set_win_focus_to (TUI_DISASM_WIN);
-                 layout_def->split = TRUE;
                  break;
                case SRC_DATA_COMMAND:
                  if (win_with_focus != TUI_DATA_WIN)
@@ -194,7 +188,6 @@ tui_set_layout (enum tui_layout_type layout_type)
                  else
                    tui_set_win_focus_to (TUI_DATA_WIN);
                  layout_def->display_mode = SRC_WIN;
-                 layout_def->split = FALSE;
                  break;
                case DISASSEM_DATA_COMMAND:
                  /* The previous layout was not showing code.
@@ -211,7 +204,6 @@ tui_set_layout (enum tui_layout_type layout_type)
                  else
                    tui_set_win_focus_to (TUI_DATA_WIN);
                  layout_def->display_mode = DISASSEM_WIN;
-                 layout_def->split = FALSE;
                  break;
                default:
                  break;
@@ -223,16 +215,12 @@ tui_set_layout (enum tui_layout_type layout_type)
          if (!regs_populate
              && (new_layout == SRC_DATA_COMMAND
                  || new_layout == DISASSEM_DATA_COMMAND))
-           tui_display_all_data ();
+           TUI_DATA_WIN->display_all_data ();
 
          tui_update_source_windows_with_addr (gdbarch, addr);
 
          if (regs_populate)
-           {
-             struct reggroup *group =
-               TUI_DATA_WIN->detail.data_display_info.current_group;
-             tui_show_registers (group);
-           }
+           tui_show_registers (TUI_DATA_WIN->current_group);
        }
     }
   else
@@ -300,8 +288,8 @@ tui_default_win_height (enum tui_win_type type,
 {
   int h;
 
-  if (tui_win_list[type] != (struct tui_win_info *) NULL)
-    h = tui_win_list[type]->generic.height;
+  if (tui_win_list[type] != NULL)
+    h = tui_win_list[type]->height;
   else
     {
       switch (layout)
@@ -311,7 +299,7 @@ tui_default_win_height (enum tui_win_type type,
          if (TUI_CMD_WIN == NULL)
            h = tui_term_height () / 2;
          else
-           h = tui_term_height () - TUI_CMD_WIN->generic.height;
+           h = tui_term_height () - TUI_CMD_WIN->height;
          break;
        case SRC_DISASSEM_COMMAND:
        case SRC_DATA_COMMAND:
@@ -319,7 +307,7 @@ tui_default_win_height (enum tui_win_type type,
          if (TUI_CMD_WIN == NULL)
            h = tui_term_height () / 3;
          else
-           h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
+           h = (tui_term_height () - TUI_CMD_WIN->height) / 2;
          break;
        default:
          h = 0;
@@ -353,22 +341,20 @@ tui_default_win_viewport_height (enum tui_win_type type,
 /* Complete possible layout names.  TEXT is the complete text entered so
    far, WORD is the word currently being completed.  */
 
-static VEC (char_ptr) *
+static void
 layout_completer (struct cmd_list_element *ignore,
+                 completion_tracker &tracker,
                  const char *text, const char *word)
 {
   static const char *layout_names [] =
     { "src", "asm", "split", "regs", "next", "prev", NULL };
 
-  return complete_on_enum (layout_names, text, word);
+  complete_on_enum (tracker, layout_names, text, word);
 }
 
 /* Function to initialize gdb commands, for tui window layout
    manipulation.  */
 
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-extern initialize_file_ftype _initialize_tui_layout;
-
 void
 _initialize_tui_layout (void)
 {
@@ -376,7 +362,7 @@ _initialize_tui_layout (void)
 
   cmd = add_com ("layout", class_tui, tui_layout_command, _("\
 Change the layout of windows.\n\
-Usage: layout prev | next | <layout_name> \n\
+Usage: layout prev | next | LAYOUT-NAME\n\
 Layout names are:\n\
    src   : Displays source and command windows.\n\
    asm   : Displays disassembly and command windows.\n\
@@ -386,7 +372,7 @@ Layout names are:\n\
            register window is displayed. If the\n\
            source/assembly/command (split) is displayed, \n\
            the register window is displayed with \n\
-           the window that has current logical focus.\n"));
+           the window that has current logical focus."));
   set_cmd_completer (cmd, layout_completer);
 }
 
@@ -403,18 +389,16 @@ tui_set_layout_by_name (const char *layout_name)
 {
   enum tui_status status = TUI_SUCCESS;
 
-  if (layout_name != (char *) NULL)
+  if (layout_name != NULL)
     {
       int i;
-      char *buf_ptr;
       enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
       enum tui_layout_type cur_layout = tui_current_layout ();
-      struct cleanup *old_chain;
 
-      buf_ptr = (char *) xstrdup (layout_name);
-      for (i = 0; (i < strlen (layout_name)); i++)
-       buf_ptr[i] = toupper (buf_ptr[i]);
-      old_chain = make_cleanup (xfree, buf_ptr);
+      std::string copy = layout_name;
+      for (i = 0; i < copy.size (); i++)
+       copy[i] = toupper (copy[i]);
+      const char *buf_ptr = copy.c_str ();
 
       /* First check for ambiguous input.  */
       if (strlen (buf_ptr) <= 1 && *buf_ptr == 'S')
@@ -452,7 +436,6 @@ tui_set_layout_by_name (const char *layout_name)
              tui_set_layout (new_layout);
            }
        }
-      do_cleanups (old_chain);
     }
   else
     status = TUI_FAILURE;
@@ -474,17 +457,17 @@ extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
     {
     case SRC_COMMAND:
     case SRC_DATA_COMMAND:
-      gdbarch = TUI_SRC_WIN->detail.source_info.gdbarch;
+      gdbarch = TUI_SRC_WIN->gdbarch;
       find_line_pc (cursal.symtab,
-                   TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
+                   TUI_SRC_WIN->start_line_or_addr.u.line_no,
                    &pc);
       addr = pc;
       break;
     case DISASSEM_COMMAND:
     case SRC_DISASSEM_COMMAND:
     case DISASSEM_DATA_COMMAND:
-      gdbarch = TUI_DISASM_WIN->detail.source_info.gdbarch;
-      addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
+      gdbarch = TUI_DISASM_WIN->gdbarch;
+      addr = TUI_DISASM_WIN->start_line_or_addr.u.addr;
       break;
     default:
       addr = 0;
@@ -497,12 +480,11 @@ extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
 
 
 static void
-tui_layout_command (char *arg, int from_tty)
+tui_layout_command (const char *arg, int from_tty)
 {
   /* Switch to the selected layout.  */
   if (tui_set_layout_by_name (arg) != TUI_SUCCESS)
     warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
-
 }
 
 /* Answer the previous layout to cycle to.  */
@@ -546,44 +528,36 @@ prev_layout (void)
 
 
 
-static void
-make_command_window (struct tui_win_info **win_info_ptr, 
-                    int height, int origin_y)
+static struct tui_win_info *
+make_command_window (int height, int origin_y)
 {
-  *win_info_ptr
-    = (struct tui_win_info *) init_and_make_win (*win_info_ptr,
+  struct tui_win_info *result
+    = (struct tui_win_info *) init_and_make_win (NULL,
                                                 CMD_WIN,
                                                 height,
                                                 tui_term_width (),
                                                 0,
                                                 origin_y,
                                                 DONT_BOX_WINDOW);
-
-  (*win_info_ptr)->can_highlight = FALSE;
+  return result;
 }
 
 
 /* make_source_window().
  */
-static void
-make_source_window (struct tui_win_info **win_info_ptr, 
-                   int height, int origin_y)
+static struct tui_win_info *
+make_source_window (int height, int origin_y)
 {
-  make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
-
-  return;
+  return make_source_or_disasm_window (SRC_WIN, height, origin_y);
 }                              /* make_source_window */
 
 
 /* make_disasm_window().
  */
-static void
-make_disasm_window (struct tui_win_info **win_info_ptr, 
-                   int height, int origin_y)
+static struct tui_win_info *
+make_disasm_window (int height, int origin_y)
 {
-  make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
-
-  return;
+  return make_source_or_disasm_window (DISASSEM_WIN, height, origin_y);
 }                              /* make_disasm_window */
 
 
@@ -628,7 +602,7 @@ show_source_disasm_command (void)
       int cmd_height, src_height, asm_height;
 
       if (TUI_CMD_WIN != NULL)
-       cmd_height = TUI_CMD_WIN->generic.height;
+       cmd_height = TUI_CMD_WIN->height;
       else
        cmd_height = tui_term_height () / 3;
 
@@ -636,96 +610,80 @@ show_source_disasm_command (void)
       asm_height = tui_term_height () - (src_height + cmd_height);
 
       if (TUI_SRC_WIN == NULL)
-       make_source_window (&TUI_SRC_WIN, src_height, 0);
+       tui_win_list[SRC_WIN] = make_source_window (src_height, 0);
       else
        {
-         init_gen_win_info (&TUI_SRC_WIN->generic,
-                            TUI_SRC_WIN->generic.type,
-                            src_height,
-                            TUI_SRC_WIN->generic.width,
-                            TUI_SRC_WIN->detail.source_info.execution_info->width,
-                            0);
-         TUI_SRC_WIN->can_highlight = TRUE;
-         init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
-                            EXEC_INFO_WIN,
-                            src_height,
-                            3,
+         TUI_SRC_WIN->reset (TUI_SRC_WIN->type,
+                             src_height,
+                             TUI_SRC_WIN->width,
+                             TUI_SRC_WIN->execution_info->width,
+                             0);
+         TUI_SRC_WIN->execution_info->reset (EXEC_INFO_WIN,
+                                             src_height,
+                                             3,
+                                             0,
+                                             0);
+         tui_make_visible (TUI_SRC_WIN);
+         tui_make_visible (TUI_SRC_WIN->execution_info);
+         TUI_SRC_WIN->m_has_locator = false;
+       }
+
+      struct tui_locator_window *locator = tui_locator_win_info_ptr ();
+      gdb_assert (locator != nullptr);
+
+      tui_show_source_content (TUI_SRC_WIN);
+      if (TUI_DISASM_WIN == NULL)
+       {
+         tui_win_list[DISASSEM_WIN]
+           = make_disasm_window (asm_height, src_height - 1);
+         init_and_make_win (locator,
+                            LOCATOR_WIN,
+                            2 /* 1 */ ,
+                            tui_term_width (),
                             0,
-                            0);
-         tui_make_visible (&TUI_SRC_WIN->generic);
-         tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
-         TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
+                            (src_height + asm_height) - 1,
+                            DONT_BOX_WINDOW);
        }
-      if (TUI_SRC_WIN != NULL)
+      else
        {
-         struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
-
-         tui_show_source_content (TUI_SRC_WIN);
-         if (TUI_DISASM_WIN == NULL)
-           {
-             make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
-             locator
-               = ((struct tui_gen_win_info *)
-                  init_and_make_win (locator,
-                                     LOCATOR_WIN,
-                                     2 /* 1 */ ,
-                                     tui_term_width (),
-                                     0,
-                                     (src_height + asm_height) - 1,
-                                     DONT_BOX_WINDOW));
-           }
-         else
-           {
-             init_gen_win_info (locator,
-                                LOCATOR_WIN,
-                                2 /* 1 */ ,
-                                tui_term_width (),
-                                0,
-                                (src_height + asm_height) - 1);
-             TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
-             init_gen_win_info (&TUI_DISASM_WIN->generic,
-                                TUI_DISASM_WIN->generic.type,
-                                asm_height,
-                                TUI_DISASM_WIN->generic.width,
-                                TUI_DISASM_WIN->detail.source_info.execution_info->width,
-                                src_height - 1);
-             init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
-                                EXEC_INFO_WIN,
+         locator->reset (LOCATOR_WIN,
+                         2 /* 1 */ ,
+                         tui_term_width (),
+                         0,
+                         (src_height + asm_height) - 1);
+         TUI_DISASM_WIN->m_has_locator = true;
+         TUI_DISASM_WIN->reset (TUI_DISASM_WIN->type,
                                 asm_height,
-                                3,
-                                0,
+                                TUI_DISASM_WIN->width,
+                                TUI_DISASM_WIN->execution_info->width,
                                 src_height - 1);
-             TUI_DISASM_WIN->can_highlight = TRUE;
-             tui_make_visible (&TUI_DISASM_WIN->generic);
-             tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
-           }
-         if (TUI_DISASM_WIN != NULL)
-           {
-             TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
-             TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
-             tui_make_visible (locator);
-             tui_show_locator_content ();
-             tui_show_source_content (TUI_DISASM_WIN);
-
-             if (TUI_CMD_WIN == NULL)
-               make_command_window (&TUI_CMD_WIN,
-                                    cmd_height,
-                                    tui_term_height () - cmd_height);
-             else
-               {
-                 init_gen_win_info (&TUI_CMD_WIN->generic,
-                                    TUI_CMD_WIN->generic.type,
-                                    TUI_CMD_WIN->generic.height,
-                                    TUI_CMD_WIN->generic.width,
-                                    0,
-                                    TUI_CMD_WIN->generic.origin.y);
-                 TUI_CMD_WIN->can_highlight = FALSE;
-                 tui_make_visible (&TUI_CMD_WIN->generic);
-               }
-             if (TUI_CMD_WIN != NULL)
-               tui_refresh_win (&TUI_CMD_WIN->generic);
-           }
+         TUI_DISASM_WIN->execution_info->reset (EXEC_INFO_WIN,
+                                                asm_height,
+                                                3,
+                                                0,
+                                                src_height - 1);
+         tui_make_visible (TUI_DISASM_WIN);
+         tui_make_visible (TUI_DISASM_WIN->execution_info);
        }
+      TUI_SRC_WIN->m_has_locator = false;
+      TUI_DISASM_WIN->m_has_locator = true;
+      tui_make_visible (locator);
+      tui_show_locator_content ();
+      tui_show_source_content (TUI_DISASM_WIN);
+
+      if (TUI_CMD_WIN == NULL)
+       tui_win_list[CMD_WIN]
+         = make_command_window (cmd_height, tui_term_height () - cmd_height);
+      else
+       {
+         TUI_CMD_WIN->reset (TUI_CMD_WIN->type,
+                             TUI_CMD_WIN->height,
+                             TUI_CMD_WIN->width,
+                             0,
+                             TUI_CMD_WIN->origin.y);
+         tui_make_visible (TUI_CMD_WIN);
+       }
+      TUI_CMD_WIN->refresh_window ();
       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
     }
 }
@@ -736,168 +694,163 @@ show_source_disasm_command (void)
 static void
 show_data (enum tui_layout_type new_layout)
 {
-  int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
+  int total_height = (tui_term_height () - TUI_CMD_WIN->height);
   int src_height, data_height;
   enum tui_win_type win_type;
-  struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 
+  struct tui_locator_window *locator = tui_locator_win_info_ptr ();
+  gdb_assert (locator != nullptr);
 
   data_height = total_height / 2;
   src_height = total_height - data_height;
   tui_make_all_invisible ();
   tui_make_invisible (locator);
-  make_data_window (&TUI_DATA_WIN, data_height, 0);
-  TUI_DATA_WIN->can_highlight = TRUE;
+  make_data_window (&tui_win_list[DATA_WIN], data_height, 0);
   if (new_layout == SRC_DATA_COMMAND)
     win_type = SRC_WIN;
   else
     win_type = DISASSEM_WIN;
+
+  tui_source_window_base *base;
   if (tui_win_list[win_type] == NULL)
     {
       if (win_type == SRC_WIN)
-       make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
+       tui_win_list[win_type]
+         = make_source_window (src_height, data_height - 1);
       else
-       make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
-      locator
-       = ((struct tui_gen_win_info *)
-          init_and_make_win (locator,
-                             LOCATOR_WIN,
-                             2 /* 1 */ ,
-                             tui_term_width (),
-                             0,
-                             total_height - 1,
-                             DONT_BOX_WINDOW));
+       tui_win_list[win_type]
+         = make_disasm_window (src_height, data_height - 1);
+      init_and_make_win (locator,
+                            LOCATOR_WIN,
+                            2 /* 1 */ ,
+                            tui_term_width (),
+                            0,
+                            total_height - 1,
+                            DONT_BOX_WINDOW);
+      base = (tui_source_window_base *) tui_win_list[win_type];
     }
   else
     {
-      init_gen_win_info (&tui_win_list[win_type]->generic,
-                        tui_win_list[win_type]->generic.type,
-                        src_height,
-                        tui_win_list[win_type]->generic.width,
-                        tui_win_list[win_type]->detail.source_info.execution_info->width,
-                        data_height - 1);
-      init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
-                        EXEC_INFO_WIN,
-                        src_height,
-                        3,
-                        0,
-                        data_height - 1);
-      tui_make_visible (&tui_win_list[win_type]->generic);
-      tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
-      init_gen_win_info (locator,
-                        LOCATOR_WIN,
-                        2 /* 1 */ ,
-                        tui_term_width (),
-                        0,
-                        total_height - 1);
+      base = (tui_source_window_base *) tui_win_list[win_type];
+      tui_win_list[win_type]->reset (tui_win_list[win_type]->type,
+                                    src_height,
+                                    tui_win_list[win_type]->width,
+                                    base->execution_info->width,
+                                    data_height - 1);
+      base->execution_info->reset (EXEC_INFO_WIN,
+                                  src_height,
+                                  3,
+                                  0,
+                                  data_height - 1);
+      tui_make_visible (tui_win_list[win_type]);
+      tui_make_visible (base->execution_info);
+      locator->reset (LOCATOR_WIN,
+                     2 /* 1 */ ,
+                     tui_term_width (),
+                     0,
+                     total_height - 1);
     }
-  tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
+  base->m_has_locator = true;
   tui_make_visible (locator);
   tui_show_locator_content ();
-  tui_add_to_source_windows (tui_win_list[win_type]);
+  tui_add_to_source_windows
+    ((tui_source_window_base *) tui_win_list[win_type]);
   tui_set_current_layout_to (new_layout);
 }
 
-/* init_gen_win_info().
- */
-static void
-init_gen_win_info (struct tui_gen_win_info *win_info, 
-                  enum tui_win_type type,
-                  int height, int width, 
-                  int origin_x, int origin_y)
+void
+tui_gen_win_info::reset (enum tui_win_type win_type,
+                        int height_, int width_,
+                        int origin_x_, int origin_y_)
 {
-  int h = height;
+  int h = height_;
+
+  gdb_assert (type == win_type);
 
-  win_info->type = type;
-  win_info->width = width;
-  win_info->height = h;
+  width = width_;
+  height = h;
   if (h > 1)
     {
-      win_info->viewport_height = h - 1;
-      if (win_info->type != CMD_WIN)
-       win_info->viewport_height--;
+      viewport_height = h - 1;
+      if (type != CMD_WIN)
+       viewport_height--;
     }
   else
-    win_info->viewport_height = 1;
-  win_info->origin.x = origin_x;
-  win_info->origin.y = origin_y;
-
-  return;
-}                              /* init_gen_win_info */
+    viewport_height = 1;
+  origin.x = origin_x_;
+  origin.y = origin_y_;
+}
 
 /* init_and_make_win().
  */
-static void *
-init_and_make_win (void *opaque_win_info, 
+static tui_gen_win_info *
+init_and_make_win (tui_gen_win_info *win_info, 
                   enum tui_win_type win_type,
                   int height, int width, 
                   int origin_x, int origin_y,
-                  int box_it)
+                  enum tui_box box_it)
 {
-  struct tui_gen_win_info *generic;
-
-  if (opaque_win_info == NULL)
+  if (win_info == NULL)
     {
-      if (tui_win_is_auxillary (win_type))
-       opaque_win_info = (void *) tui_alloc_generic_win_info ();
-      else
-       opaque_win_info = (void *) tui_alloc_win_info (win_type);
-    }
-  if (tui_win_is_auxillary (win_type))
-    generic = (struct tui_gen_win_info *) opaque_win_info;
-  else
-    generic = &((struct tui_win_info *) opaque_win_info)->generic;
-
-  if (opaque_win_info != NULL)
-    {
-      init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
-      if (!tui_win_is_auxillary (win_type))
+      switch (win_type)
        {
-         if (generic->type == CMD_WIN)
-           ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
-         else
-           ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
+       case SRC_WIN:
+         win_info = new tui_source_window ();
+         break;
+
+       case DISASSEM_WIN:
+         win_info = new tui_disasm_window ();
+         break;
+
+       case DATA_WIN:
+         win_info = new tui_data_window ();
+         break;
+
+       case CMD_WIN:
+         win_info = new tui_cmd_window ();
+         break;
+
+       case EXEC_INFO_WIN:
+         win_info = new tui_exec_info_window ();
+         break;
+
+       default:
+         gdb_assert_not_reached (_("unhandled window type"));
        }
-      tui_make_window (generic, box_it);
     }
-  return opaque_win_info;
+
+  win_info->reset (win_type, height, width, origin_x, origin_y);
+  tui_make_window (win_info, box_it);
+
+  return win_info;
 }
 
 
-static void
-make_source_or_disasm_window (struct tui_win_info **win_info_ptr, 
-                             enum tui_win_type type,
+static struct tui_win_info *
+make_source_or_disasm_window (enum tui_win_type type,
                              int height, int origin_y)
 {
-  struct tui_gen_win_info *execution_info = NULL;
-
-  /* Create the exeuction info window.  */
-  if (type == SRC_WIN)
-    execution_info = tui_source_exec_info_win_ptr ();
-  else
-    execution_info = tui_disassem_exec_info_win_ptr ();
-  execution_info
-    = ((struct tui_gen_win_info *)
-       init_and_make_win (execution_info,
-                         EXEC_INFO_WIN,
-                         height,
-                         3,
-                         0,
-                         origin_y,
-                         DONT_BOX_WINDOW));
+  struct tui_exec_info_window *execution_info
+    = (tui_exec_info_window *) init_and_make_win (nullptr,
+                                                 EXEC_INFO_WIN,
+                                                 height,
+                                                 3,
+                                                 0,
+                                                 origin_y,
+                                                 DONT_BOX_WINDOW);
 
   /* Now create the source window.  */
-  *win_info_ptr
-    = ((struct tui_win_info *)
-       init_and_make_win (*win_info_ptr,
+  struct tui_source_window_base *result
+    = ((struct tui_source_window_base *)
+       init_and_make_win (NULL,
                          type,
                          height,
                          tui_term_width () - execution_info->width,
                          execution_info->width,
                          origin_y,
                          BOX_WINDOW));
-
-  (*win_info_ptr)->detail.source_info.execution_info = execution_info;
+  result->execution_info = execution_info;
+  return result;
 }
 
 
@@ -909,83 +862,78 @@ show_source_or_disasm_and_command (enum tui_layout_type layout_type)
     {
       struct tui_win_info **win_info_ptr;
       int src_height, cmd_height;
-      struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
+      struct tui_locator_window *locator = tui_locator_win_info_ptr ();
+      gdb_assert (locator != nullptr);
 
       if (TUI_CMD_WIN != NULL)
-       cmd_height = TUI_CMD_WIN->generic.height;
+       cmd_height = TUI_CMD_WIN->height;
       else
        cmd_height = tui_term_height () / 3;
       src_height = tui_term_height () - cmd_height;
 
       if (layout_type == SRC_COMMAND)
-       win_info_ptr = &TUI_SRC_WIN;
+       win_info_ptr = &tui_win_list[SRC_WIN];
       else
-       win_info_ptr = &TUI_DISASM_WIN;
+       win_info_ptr = &tui_win_list[DISASSEM_WIN];
 
+      tui_source_window_base *base;
       if ((*win_info_ptr) == NULL)
        {
          if (layout_type == SRC_COMMAND)
-           make_source_window (win_info_ptr, src_height - 1, 0);
+           *win_info_ptr = make_source_window (src_height - 1, 0);
          else
-           make_disasm_window (win_info_ptr, src_height - 1, 0);
-         locator
-           = ((struct tui_gen_win_info *)
-              init_and_make_win (locator,
-                                 LOCATOR_WIN,
-                                 2 /* 1 */ ,
-                                 tui_term_width (),
-                                 0,
-                                 src_height - 1,
-                                 DONT_BOX_WINDOW));
-       }
-      else
-       {
-         init_gen_win_info (locator,
+           *win_info_ptr = make_disasm_window (src_height - 1, 0);
+         init_and_make_win (locator,
                             LOCATOR_WIN,
                             2 /* 1 */ ,
                             tui_term_width (),
                             0,
-                            src_height - 1);
-         (*win_info_ptr)->detail.source_info.has_locator = TRUE;
-         init_gen_win_info (&(*win_info_ptr)->generic,
-                            (*win_info_ptr)->generic.type,
-                            src_height - 1,
-                            (*win_info_ptr)->generic.width,
-                            (*win_info_ptr)->detail.source_info.execution_info->width,
-                            0);
-         init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
-                            EXEC_INFO_WIN,
                             src_height - 1,
-                            3,
-                            0,
-                            0);
-         (*win_info_ptr)->can_highlight = TRUE;
-         tui_make_visible (&(*win_info_ptr)->generic);
-         tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
+                            DONT_BOX_WINDOW);
+         base = (tui_source_window_base *) *win_info_ptr;
        }
-      if ((*win_info_ptr) != NULL)
+      else
        {
-         (*win_info_ptr)->detail.source_info.has_locator = TRUE;
-         tui_make_visible (locator);
-         tui_show_locator_content ();
-         tui_show_source_content (*win_info_ptr);
+         base = (tui_source_window_base *) *win_info_ptr;
+         locator->reset (LOCATOR_WIN,
+                         2 /* 1 */ ,
+                         tui_term_width (),
+                         0,
+                         src_height - 1);
+         base->m_has_locator = true;
+         (*win_info_ptr)->reset ((*win_info_ptr)->type,
+                                 src_height - 1,
+                                 (*win_info_ptr)->width,
+                                 base->execution_info->width,
+                                 0);
+         base->execution_info->reset (EXEC_INFO_WIN,
+                                      src_height - 1,
+                                      3,
+                                      0,
+                                      0);
+         tui_make_visible (*win_info_ptr);
+         tui_make_visible (base->execution_info);
+       }
 
-         if (TUI_CMD_WIN == NULL)
-           {
-             make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
-             tui_refresh_win (&TUI_CMD_WIN->generic);
-           }
-         else
-           {
-             init_gen_win_info (&TUI_CMD_WIN->generic,
-                                TUI_CMD_WIN->generic.type,
-                                TUI_CMD_WIN->generic.height,
-                                TUI_CMD_WIN->generic.width,
-                                TUI_CMD_WIN->generic.origin.x,
-                                TUI_CMD_WIN->generic.origin.y);
-             TUI_CMD_WIN->can_highlight = FALSE;
-             tui_make_visible (&TUI_CMD_WIN->generic);
-           }
+      base->m_has_locator = true;
+      tui_make_visible (locator);
+      tui_show_locator_content ();
+      tui_show_source_content (base);
+
+      if (TUI_CMD_WIN == NULL)
+       {
+         tui_win_list[CMD_WIN] = make_command_window (cmd_height,
+                                                      src_height);
+         TUI_CMD_WIN->refresh_window ();
+       }
+      else
+       {
+         TUI_CMD_WIN->reset (TUI_CMD_WIN->type,
+                             TUI_CMD_WIN->height,
+                             TUI_CMD_WIN->width,
+                             TUI_CMD_WIN->origin.x,
+                             TUI_CMD_WIN->origin.y);
+         tui_make_visible (TUI_CMD_WIN);
        }
       tui_set_current_layout_to (layout_type);
     }
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