Remove m_has_locator
[deliverable/binutils-gdb.git] / gdb / tui / tui-layout.c
index 9fffba779a9a1c79e012641a82c094a3f6fe742c..b7c5ed63c64ed0bacf3e0d514e63405d416eb74f 100644 (file)
@@ -28,8 +28,8 @@
 #include <ctype.h>
 
 #include "tui/tui.h"
+#include "tui/tui-command.h"
 #include "tui/tui-data.h"
-#include "tui/tui-windata.h"
 #include "tui/tui-wingeneral.h"
 #include "tui/tui-stack.h"
 #include "tui/tui-regs.h"
 #include "tui/tui-winsource.h"
 #include "tui/tui-disasm.h"
 #include "tui/tui-layout.h"
+#include "tui/tui-source.h"
 #include "gdb_curses.h"
 
 /*******************************
 ** Static Local Decls
 ********************************/
 static void show_layout (enum tui_layout_type);
-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 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);
 static void show_source_disasm_command (void);
@@ -64,12 +55,19 @@ static void tui_layout_command (const char *, int);
 static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
 
 
+static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
+
+/* Accessor for the current layout.  */
+enum tui_layout_type
+tui_current_layout (void)
+{
+  return current_layout;
+}
+
 /***************************************
 ** DEFINITIONS
 ***************************************/
 
-#define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
-
 /* Show the screen layout defined.  */
 static void
 show_layout (enum tui_layout_type layout)
@@ -78,156 +76,121 @@ show_layout (enum tui_layout_type layout)
 
   if (layout != cur_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)
+      tui_make_all_invisible ();
+      switch (layout)
        {
+       case SRC_DATA_COMMAND:
+       case DISASSEM_DATA_COMMAND:
          show_data (layout);
-         tui_refresh_all (tui_win_list);
+         tui_refresh_all ();
+         break;
+         /* Now show the new layout.  */
+       case SRC_COMMAND:
+         show_source_command ();
+         break;
+       case DISASSEM_COMMAND:
+         show_disasm_command ();
+         break;
+       case SRC_DISASSEM_COMMAND:
+         show_source_disasm_command ();
+         break;
+       default:
+         break;
        }
-      else
-       {
-         /* First make the current layout be invisible.  */
-         tui_make_all_invisible ();
-         tui_make_invisible (tui_locator_win_info_ptr ());
 
-         switch (layout)
-           {
-             /* Now show the new layout.  */
-           case SRC_COMMAND:
-             show_source_command ();
-             tui_add_to_source_windows (TUI_SRC_WIN);
-             break;
-           case DISASSEM_COMMAND:
-             show_disasm_command ();
-             tui_add_to_source_windows (TUI_DISASM_WIN);
-             break;
-           case SRC_DISASSEM_COMMAND:
-             show_source_disasm_command ();
-             tui_add_to_source_windows (TUI_SRC_WIN);
-             tui_add_to_source_windows (TUI_DISASM_WIN);
-             break;
-           default:
-             break;
-           }
-       }
+      tui_delete_invisible_windows ();
     }
 }
 
 
 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.  */
-enum tui_status
+void
 tui_set_layout (enum tui_layout_type layout_type)
 {
-  enum tui_status status = TUI_SUCCESS;
+  gdb_assert (layout_type != UNDEFINED_LAYOUT);
 
-  if (layout_type != UNDEFINED_LAYOUT)
-    {
-      enum tui_layout_type cur_layout = tui_current_layout (),
-       new_layout = UNDEFINED_LAYOUT;
-      int regs_populate = FALSE;
-      struct gdbarch *gdbarch;
-      CORE_ADDR addr;
-      struct tui_win_info *win_with_focus = tui_win_with_focus ();
-      struct tui_layout_def *layout_def = tui_layout_def ();
+  enum tui_layout_type cur_layout = tui_current_layout ();
+  struct gdbarch *gdbarch;
+  CORE_ADDR addr;
+  struct tui_win_info *win_with_focus = tui_win_with_focus ();
 
-      extract_display_start_addr (&gdbarch, &addr);
+  extract_display_start_addr (&gdbarch, &addr);
 
-      new_layout = layout_type;
+  enum tui_layout_type new_layout = layout_type;
 
-      regs_populate = (new_layout == SRC_DATA_COMMAND
-                      || new_layout == DISASSEM_DATA_COMMAND);
-      if (new_layout != cur_layout)
-       {
-         show_layout (new_layout);
+  if (new_layout != cur_layout)
+    {
+      show_layout (new_layout);
 
-         /* Now determine where focus should be.  */
-         if (win_with_focus != TUI_CMD_WIN)
+      /* Now determine where focus should be.  */
+      if (win_with_focus != TUI_CMD_WIN)
+       {
+         switch (new_layout)
            {
-             switch (new_layout)
-               {
-               case SRC_COMMAND:
-                 tui_set_win_focus_to (TUI_SRC_WIN);
-                 layout_def->display_mode = SRC_WIN;
-                 break;
-               case DISASSEM_COMMAND:
-                 /* The previous layout was not showing code.
-                    This can happen if there is no source
-                    available:
-
-                    1. if the source file is in another dir OR
-                    2. if target was compiled without -g
-                    We still want to show the assembly though!  */
-
-                 tui_get_begin_asm_address (&gdbarch, &addr);
-                 tui_set_win_focus_to (TUI_DISASM_WIN);
-                 layout_def->display_mode = DISASSEM_WIN;
-                 break;
-               case SRC_DISASSEM_COMMAND:
-                 /* The previous layout was not showing code.
-                    This can happen if there is no source
-                    available:
-
-                    1. if the source file is in another dir OR
-                    2. if target was compiled without -g
-                    We still want to show the assembly though!  */
-
-                 tui_get_begin_asm_address (&gdbarch, &addr);
-                 if (win_with_focus == TUI_SRC_WIN)
-                   tui_set_win_focus_to (TUI_SRC_WIN);
-                 else
-                   tui_set_win_focus_to (TUI_DISASM_WIN);
-                 break;
-               case SRC_DATA_COMMAND:
-                 if (win_with_focus != TUI_DATA_WIN)
-                   tui_set_win_focus_to (TUI_SRC_WIN);
-                 else
-                   tui_set_win_focus_to (TUI_DATA_WIN);
-                 layout_def->display_mode = SRC_WIN;
-                 break;
-               case DISASSEM_DATA_COMMAND:
-                 /* The previous layout was not showing code.
-                    This can happen if there is no source
-                    available:
-
-                    1. if the source file is in another dir OR
-                    2. if target was compiled without -g
-                    We still want to show the assembly though!  */
-
-                 tui_get_begin_asm_address (&gdbarch, &addr);
-                 if (win_with_focus != TUI_DATA_WIN)
-                   tui_set_win_focus_to (TUI_DISASM_WIN);
-                 else
-                   tui_set_win_focus_to (TUI_DATA_WIN);
-                 layout_def->display_mode = DISASSEM_WIN;
-                 break;
-               default:
-                 break;
-               }
+           case SRC_COMMAND:
+             tui_set_win_focus_to (TUI_SRC_WIN);
+             break;
+           case DISASSEM_COMMAND:
+             /* The previous layout was not showing code.
+                This can happen if there is no source
+                available:
+
+                1. if the source file is in another dir OR
+                2. if target was compiled without -g
+                We still want to show the assembly though!  */
+
+             tui_get_begin_asm_address (&gdbarch, &addr);
+             tui_set_win_focus_to (TUI_DISASM_WIN);
+             break;
+           case SRC_DISASSEM_COMMAND:
+             /* The previous layout was not showing code.
+                This can happen if there is no source
+                available:
+
+                1. if the source file is in another dir OR
+                2. if target was compiled without -g
+                We still want to show the assembly though!  */
+
+             tui_get_begin_asm_address (&gdbarch, &addr);
+             if (win_with_focus == TUI_SRC_WIN)
+               tui_set_win_focus_to (TUI_SRC_WIN);
+             else
+               tui_set_win_focus_to (TUI_DISASM_WIN);
+             break;
+           case SRC_DATA_COMMAND:
+             if (win_with_focus != TUI_DATA_WIN)
+               tui_set_win_focus_to (TUI_SRC_WIN);
+             else
+               tui_set_win_focus_to (TUI_DATA_WIN);
+             break;
+           case DISASSEM_DATA_COMMAND:
+             /* The previous layout was not showing code.
+                This can happen if there is no source
+                available:
+
+                1. if the source file is in another dir OR
+                2. if target was compiled without -g
+                We still want to show the assembly though!  */
+
+             tui_get_begin_asm_address (&gdbarch, &addr);
+             if (win_with_focus != TUI_DATA_WIN)
+               tui_set_win_focus_to (TUI_DISASM_WIN);
+             else
+               tui_set_win_focus_to (TUI_DATA_WIN);
+             break;
+           default:
+             break;
            }
-         /*
-          * Now update the window content.
-          */
-         if (!regs_populate
-             && (new_layout == SRC_DATA_COMMAND
-                 || new_layout == DISASSEM_DATA_COMMAND))
-           tui_display_all_data ();
-
-         tui_update_source_windows_with_addr (gdbarch, addr);
-
-         if (regs_populate)
-           tui_show_registers (TUI_DATA_WIN->current_group);
        }
+      /*
+       * Now update the window content.
+       */
+      tui_update_source_windows_with_addr (gdbarch, addr);
+      if (new_layout == SRC_DATA_COMMAND
+         || new_layout == DISASSEM_DATA_COMMAND)
+       tui_show_registers (TUI_DATA_WIN->current_group);
     }
-  else
-    status = TUI_FAILURE;
-
-  return status;
 }
 
 /* Add the specified window to the layout in a logical way.  This
@@ -283,7 +246,7 @@ tui_add_win_to_layout (enum tui_win_type type)
 /* Answer the height of a window.  If it hasn't been created yet,
    answer what the height of a window would be based upon its type and
    the layout.  */
-int
+static int
 tui_default_win_height (enum tui_win_type type, 
                        enum tui_layout_type layout)
 {
@@ -331,7 +294,7 @@ tui_default_win_viewport_height (enum tui_win_type type,
 
   h = tui_default_win_height (type, layout);
 
-  if (tui_win_list[type] == TUI_CMD_WIN)
+  if (type == CMD_WIN)
     h -= 1;
   else
     h -= 2;
@@ -385,63 +348,49 @@ Layout names are:\n\
 
 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, or
    REGS. */
-enum tui_status
-tui_set_layout_by_name (const char *layout_name)
+static void
+tui_layout_command (const char *layout_name, int from_tty)
 {
-  enum tui_status status = TUI_SUCCESS;
+  int i;
+  enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
+  enum tui_layout_type cur_layout = tui_current_layout ();
 
-  if (layout_name != NULL)
-    {
-      int i;
-      enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
-      enum tui_layout_type cur_layout = tui_current_layout ();
+  if (layout_name == NULL)
+    error (_("Usage: layout prev | next | LAYOUT-NAME"));
 
-      std::string copy = layout_name;
-      for (i = 0; i < copy.size (); i++)
-       copy[i] = toupper (copy[i]);
-      const char *buf_ptr = copy.c_str ();
+  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')
-       {
-         warning (_("Ambiguous command input."));
-         status = TUI_FAILURE;
-       }
-      else
-       {
-         if (subset_compare (buf_ptr, "SRC"))
-           new_layout = SRC_COMMAND;
-         else if (subset_compare (buf_ptr, "ASM"))
-           new_layout = DISASSEM_COMMAND;
-         else if (subset_compare (buf_ptr, "SPLIT"))
-           new_layout = SRC_DISASSEM_COMMAND;
-         else if (subset_compare (buf_ptr, "REGS"))
-           {
-             if (cur_layout == SRC_COMMAND
-                 || cur_layout == SRC_DATA_COMMAND)
-               new_layout = SRC_DATA_COMMAND;
-             else
-               new_layout = DISASSEM_DATA_COMMAND;
-           }
-         else if (subset_compare (buf_ptr, "NEXT"))
-           new_layout = next_layout ();
-         else if (subset_compare (buf_ptr, "PREV"))
-           new_layout = prev_layout ();
-         else
-           status = TUI_FAILURE;
+  /* First check for ambiguous input.  */
+  if (strlen (buf_ptr) <= 1 && *buf_ptr == 'S')
+    error (_("Ambiguous command input."));
 
-         if (status == TUI_SUCCESS)
-           {
-             /* Make sure the curses mode is enabled.  */
-             tui_enable ();
-             tui_set_layout (new_layout);
-           }
-       }
+  if (subset_compare (buf_ptr, "SRC"))
+    new_layout = SRC_COMMAND;
+  else if (subset_compare (buf_ptr, "ASM"))
+    new_layout = DISASSEM_COMMAND;
+  else if (subset_compare (buf_ptr, "SPLIT"))
+    new_layout = SRC_DISASSEM_COMMAND;
+  else if (subset_compare (buf_ptr, "REGS"))
+    {
+      if (cur_layout == SRC_COMMAND
+         || cur_layout == SRC_DATA_COMMAND)
+       new_layout = SRC_DATA_COMMAND;
+      else
+       new_layout = DISASSEM_DATA_COMMAND;
     }
+  else if (subset_compare (buf_ptr, "NEXT"))
+    new_layout = next_layout ();
+  else if (subset_compare (buf_ptr, "PREV"))
+    new_layout = prev_layout ();
   else
-    status = TUI_FAILURE;
+    error (_("Unrecognized layout: %s"), layout_name);
 
-  return status;
+  /* Make sure the curses mode is enabled.  */
+  tui_enable ();
+  tui_set_layout (new_layout);
 }
 
 
@@ -480,14 +429,6 @@ extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
 }
 
 
-static void
-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.  */
 static enum tui_layout_type
 next_layout (void)
@@ -527,57 +468,6 @@ prev_layout (void)
   return (enum tui_layout_type) new_layout;
 }
 
-
-
-static struct tui_win_info *
-make_command_window (int height, int origin_y)
-{
-  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);
-  return result;
-}
-
-
-/* make_source_window().
- */
-static struct tui_win_info *
-make_source_window (int height, int origin_y)
-{
-  return make_source_or_disasm_window (SRC_WIN, height, origin_y);
-}                              /* make_source_window */
-
-
-/* make_disasm_window().
- */
-static struct tui_win_info *
-make_disasm_window (int height, int origin_y)
-{
-  return make_source_or_disasm_window (DISASSEM_WIN, height, origin_y);
-}                              /* make_disasm_window */
-
-
-static void
-make_data_window (struct tui_win_info **win_info_ptr, 
-                 int height, int origin_y)
-{
-  *win_info_ptr
-    = (struct tui_win_info *) init_and_make_win (*win_info_ptr,
-                                                DATA_WIN,
-                                                height,
-                                                tui_term_width (),
-                                                0,
-                                                origin_y,
-                                                BOX_WINDOW);
-}
-
-
-
 /* Show the Source/Command layout.  */
 static void
 show_source_command (void)
@@ -598,95 +488,46 @@ show_disasm_command (void)
 static void
 show_source_disasm_command (void)
 {
-  if (tui_current_layout () != SRC_DISASSEM_COMMAND)
-    {
-      int cmd_height, src_height, asm_height;
+  int cmd_height, src_height, asm_height;
 
-      if (TUI_CMD_WIN != NULL)
-       cmd_height = TUI_CMD_WIN->height;
-      else
-       cmd_height = tui_term_height () / 3;
+  if (TUI_CMD_WIN != NULL)
+    cmd_height = TUI_CMD_WIN->height;
+  else
+    cmd_height = tui_term_height () / 3;
 
-      src_height = (tui_term_height () - cmd_height) / 2;
-      asm_height = tui_term_height () - (src_height + cmd_height);
+  src_height = (tui_term_height () - cmd_height) / 2;
+  asm_height = tui_term_height () - (src_height + cmd_height);
 
-      if (TUI_SRC_WIN == NULL)
-       tui_win_list[SRC_WIN] = make_source_window (src_height, 0);
-      else
-       {
-         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;
-       }
+  if (TUI_SRC_WIN == NULL)
+    tui_win_list[SRC_WIN] = new tui_source_window ();
+  TUI_SRC_WIN->resize (src_height,
+                      tui_term_width (),
+                      0,
+                      0);
 
-      struct tui_locator_window *locator = tui_locator_win_info_ptr ();
-      gdb_assert (locator != nullptr);
+  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,
-                            (src_height + asm_height) - 1,
-                            DONT_BOX_WINDOW);
-       }
-      else
-       {
-         locator->reset (LOCATOR_WIN,
-                         2 /* 1 */ ,
+  TUI_SRC_WIN->show_source_content ();
+  if (TUI_DISASM_WIN == NULL)
+    tui_win_list[DISASSEM_WIN] = new tui_disasm_window ();
+  TUI_DISASM_WIN->resize (asm_height,
                          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,
-                                TUI_DISASM_WIN->width,
-                                TUI_DISASM_WIN->execution_info->width,
-                                src_height - 1);
-         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);
-    }
+                         src_height - 1);
+  locator->resize (2 /* 1 */ ,
+                  tui_term_width (),
+                  0,
+                  (src_height + asm_height) - 1);
+  TUI_DISASM_WIN->show_source_content ();
+
+  if (TUI_CMD_WIN == NULL)
+    tui_win_list[CMD_WIN] = new tui_cmd_window ();
+  TUI_CMD_WIN->resize (cmd_height,
+                      tui_term_width (),
+                      0,
+                      tui_term_height () - cmd_height);
+  current_layout = SRC_DISASSEM_COMMAND;
 }
 
 
@@ -704,240 +545,112 @@ show_data (enum tui_layout_type new_layout)
 
   data_height = total_height / 2;
   src_height = total_height - data_height;
-  tui_make_all_invisible ();
-  tui_make_invisible (locator);
-  make_data_window (&tui_win_list[DATA_WIN], data_height, 0);
+  if (tui_win_list[DATA_WIN] == nullptr)
+    tui_win_list[DATA_WIN] = new tui_data_window ();
+  tui_win_list[DATA_WIN]->resize (data_height, tui_term_width (), 0, 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)
-       tui_win_list[win_type]
-         = make_source_window (src_height, data_height - 1);
+       tui_win_list[win_type] = new tui_source_window ();
       else
-       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];
+       tui_win_list[win_type] = new tui_disasm_window ();
     }
-  else
-    {
-      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);
-    }
-  base->m_has_locator = true;
-  tui_make_visible (locator);
-  tui_show_locator_content ();
-  tui_add_to_source_windows
-    ((tui_source_window_base *) tui_win_list[win_type]);
-  tui_set_current_layout_to (new_layout);
+
+  tui_win_list[win_type]->resize (src_height,
+                                 tui_term_width (),
+                                 0,
+                                 data_height - 1);
+  locator->resize (2 /* 1 */ ,
+                  tui_term_width (),
+                  0,
+                  total_height - 1);
+  TUI_CMD_WIN->resize (TUI_CMD_WIN->height, tui_term_width (),
+                      0, total_height);
+
+  current_layout = new_layout;
 }
 
 void
-tui_gen_win_info::reset (enum tui_win_type win_type,
-                        int height_, int width_,
-                        int origin_x_, int origin_y_)
+tui_gen_win_info::resize (int height_, int width_,
+                         int origin_x_, int origin_y_)
 {
-  int h = height_;
-
-  gdb_assert (type == win_type);
-
   width = width_;
-  height = h;
-  if (h > 1)
-    {
-      viewport_height = h - 1;
-      if (type != CMD_WIN)
-       viewport_height--;
-    }
+  height = height_;
+  if (height > 1)
+    viewport_height = height - 2;
   else
     viewport_height = 1;
   origin.x = origin_x_;
   origin.y = origin_y_;
-}
 
-/* init_and_make_win().
- */
-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,
-                  enum tui_box box_it)
-{
-  if (win_info == NULL)
+  if (handle != nullptr)
     {
-      switch (win_type)
-       {
-       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 (tui_win_is_auxiliary (win_type));
-         win_info = new tui_gen_win_info (win_type);
-         break;
-       }
+#ifdef HAVE_WRESIZE
+      wresize (handle, height, width);
+      mvwin (handle, origin.y, origin.x);
+      wmove (handle, 0, 0);
+#else
+      tui_delete_win (handle);
+      handle = NULL;
+#endif
     }
 
-  win_info->reset (win_type, height, width, origin_x, origin_y);
-  tui_make_window (win_info, box_it);
-
-  return win_info;
-}
-
+  if (handle == nullptr)
+    tui_make_window (this);
 
-static struct tui_win_info *
-make_source_or_disasm_window (enum tui_win_type type,
-                             int height, int origin_y)
-{
-  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.  */
-  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));
-  result->execution_info = execution_info;
-  return result;
+  rerender ();
 }
 
-
 /* Show the Source/Command or the Disassem layout.  */
 static void
 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 {
-  if (tui_current_layout () != layout_type)
-    {
-      struct tui_win_info **win_info_ptr;
-      int src_height, cmd_height;
-      struct tui_locator_window *locator = tui_locator_win_info_ptr ();
-      gdb_assert (locator != nullptr);
-
-      if (TUI_CMD_WIN != NULL)
-       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_win_list[SRC_WIN];
-      else
-       win_info_ptr = &tui_win_list[DISASSEM_WIN];
-
-      tui_source_window_base *base;
-      if ((*win_info_ptr) == NULL)
-       {
-         if (layout_type == SRC_COMMAND)
-           *win_info_ptr = make_source_window (src_height - 1, 0);
-         else
-           *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,
-                            DONT_BOX_WINDOW);
-         base = (tui_source_window_base *) *win_info_ptr;
-       }
-      else
-       {
-         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);
-       }
+  struct tui_source_window_base *win_info;
+  int src_height, cmd_height;
+  struct tui_locator_window *locator = tui_locator_win_info_ptr ();
+  gdb_assert (locator != nullptr);
 
-      base->m_has_locator = true;
-      tui_make_visible (locator);
-      tui_show_locator_content ();
-      tui_show_source_content (*win_info_ptr);
+  if (TUI_CMD_WIN != NULL)
+    cmd_height = TUI_CMD_WIN->height;
+  else
+    cmd_height = tui_term_height () / 3;
+  src_height = tui_term_height () - cmd_height;
 
-      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);
+  if (layout_type == SRC_COMMAND)
+    {
+      if (tui_win_list[SRC_WIN] == nullptr)
+       tui_win_list[SRC_WIN] = new tui_source_window ();
+      win_info = TUI_SRC_WIN;
     }
+  else
+    {
+      if (tui_win_list[DISASSEM_WIN] == nullptr)
+       tui_win_list[DISASSEM_WIN] = new tui_disasm_window ();
+      win_info = TUI_DISASM_WIN;
+    }
+
+  locator->resize (2 /* 1 */ ,
+                  tui_term_width (),
+                  0,
+                  src_height - 1);
+  win_info->resize (src_height - 1,
+                   tui_term_width (),
+                   0,
+                   0);
+
+  win_info->show_source_content ();
+
+  if (TUI_CMD_WIN == NULL)
+    tui_win_list[CMD_WIN] = new tui_cmd_window ();
+  TUI_CMD_WIN->resize (cmd_height,
+                      tui_term_width (),
+                      0,
+                      src_height);
+  current_layout = layout_type;
 }
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