2004-02-19 Elena Zannoni <ezannoni@redhat.com>
[deliverable/binutils-gdb.git] / gdb / tui / tui-layout.c
index d3621d880f8869b49ba41669203969fc86d214d8..95ed77e2e225f80092c7856cf8d0522273518705 100644 (file)
 #include "tui/tui-winsource.h"
 #include "tui/tui-disasm.h"
 
-#ifdef HAVE_NCURSES_H       
-#include <ncurses.h>
-#else
-#ifdef HAVE_CURSES_H
-#include <curses.h>
-#endif
-#endif
+#include "gdb_string.h"
+#include "gdb_curses.h"
 
 /*******************************
 ** Static Local Decls
 ********************************/
-static void showLayout (TuiLayoutType);
-static void _initGenWinInfo (TuiGenWinInfoPtr, TuiWinType, int, int, int, int);
-static void _initAndMakeWin (Opaque *, TuiWinType, int, int, int, int, int);
-static void _showSourceOrDisassemAndCommand (TuiLayoutType);
-static void _makeSourceOrDisassemWindow (TuiWinInfoPtr *, TuiWinType, int, int);
-static void _makeCommandWindow (TuiWinInfoPtr *, int, int);
-static void _makeSourceWindow (TuiWinInfoPtr *, int, int);
-static void _makeDisassemWindow (TuiWinInfoPtr *, int, int);
-static void _makeDataWindow (TuiWinInfoPtr *, int, int);
-static void _showSourceCommand (void);
-static void _showDisassemCommand (void);
-static void _showSourceDisassemCommand (void);
-static void _showData (TuiLayoutType);
-static TuiLayoutType _nextLayout (void);
-static TuiLayoutType _prevLayout (void);
-static void _tuiLayout_command (char *, int);
-static void _tuiToggleLayout_command (char *, int);
-static void _tuiToggleSplitLayout_command (char *, int);
-static CORE_ADDR _extractDisplayStartAddr (void);
-static void _tuiHandleXDBLayout (TuiLayoutDefPtr);
+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 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 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);
+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_toggle_layout_command (char *, int);
+static void tui_toggle_split_layout_command (char *, int);
+static CORE_ADDR extract_display_start_addr (void);
+static void tui_handle_xdb_layout (struct tui_layout_def *);
 
 
 /***************************************
@@ -80,11 +75,11 @@ static void _tuiHandleXDBLayout (TuiLayoutDefPtr);
 
 /* Show the screen layout defined.  */
 static void
-showLayout (TuiLayoutType layout)
+show_layout (enum tui_layout_type layout)
 {
-  TuiLayoutType curLayout = tui_current_layout ();
+  enum tui_layout_type cur_layout = tui_current_layout ();
 
-  if (layout != curLayout)
+  if (layout != cur_layout)
     {
       /*
          ** Since the new layout may cause changes in window size, we
@@ -95,8 +90,8 @@ showLayout (TuiLayoutType layout)
       tui_clear_source_windows ();
       if (layout == SRC_DATA_COMMAND || layout == DISASSEM_DATA_COMMAND)
        {
-         _showData (layout);
-         tui_refresh_all (winList);
+         show_data (layout);
+         tui_refresh_all (tui_win_list);
        }
       else
        {
@@ -108,17 +103,17 @@ showLayout (TuiLayoutType layout)
            {
              /* Now show the new layout */
            case SRC_COMMAND:
-             _showSourceCommand ();
-             tui_add_to_source_windows (srcWin);
+             show_source_command ();
+             tui_add_to_source_windows (TUI_SRC_WIN);
              break;
            case DISASSEM_COMMAND:
-             _showDisassemCommand ();
-             tui_add_to_source_windows (disassemWin);
+             show_disasm_command ();
+             tui_add_to_source_windows (TUI_DISASM_WIN);
              break;
            case SRC_DISASSEM_COMMAND:
-             _showSourceDisassemCommand ();
-             tui_add_to_source_windows (srcWin);
-             tui_add_to_source_windows (disassemWin);
+             show_source_disasm_command ();
+             tui_add_to_source_windows (TUI_SRC_WIN);
+             tui_add_to_source_windows (TUI_DISASM_WIN);
              break;
            default:
              break;
@@ -132,55 +127,56 @@ showLayout (TuiLayoutType layout)
    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
    UNDEFINED_LAYOUT, then the data window is populated according to
-   regsDisplayType.  */
+   regs_display_type.  */
 enum tui_status
-tui_set_layout (enum tui_layout_type layoutType,
-               enum tui_register_display_type regsDisplayType)
+tui_set_layout (enum tui_layout_type layout_type,
+               enum tui_register_display_type regs_display_type)
 {
-  TuiStatus status = TUI_SUCCESS;
+  enum tui_status status = TUI_SUCCESS;
 
-  if (layoutType != UNDEFINED_LAYOUT || regsDisplayType != TUI_UNDEFINED_REGS)
+  if (layout_type != UNDEFINED_LAYOUT || regs_display_type != TUI_UNDEFINED_REGS)
     {
-      TuiLayoutType curLayout = tui_current_layout (), newLayout = UNDEFINED_LAYOUT;
-      int regsPopulate = FALSE;
-      CORE_ADDR addr = _extractDisplayStartAddr ();
-      TuiWinInfoPtr newWinWithFocus = (TuiWinInfoPtr) NULL, winWithFocus = tui_win_with_focus ();
-      TuiLayoutDefPtr layoutDef = tui_layout_def ();
+      enum tui_layout_type cur_layout = tui_current_layout (), new_layout = UNDEFINED_LAYOUT;
+      int regs_populate = FALSE;
+      CORE_ADDR addr = extract_display_start_addr ();
+      struct tui_win_info * new_win_with_focus = (struct tui_win_info *) NULL;
+      struct tui_win_info * win_with_focus = tui_win_with_focus ();
+      struct tui_layout_def * layout_def = tui_layout_def ();
 
 
-      if (layoutType == UNDEFINED_LAYOUT &&
-         regsDisplayType != TUI_UNDEFINED_REGS)
+      if (layout_type == UNDEFINED_LAYOUT &&
+         regs_display_type != TUI_UNDEFINED_REGS)
        {
-         if (curLayout == SRC_DISASSEM_COMMAND)
-           newLayout = DISASSEM_DATA_COMMAND;
-         else if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
-           newLayout = SRC_DATA_COMMAND;
-         else if (curLayout == DISASSEM_COMMAND ||
-                  curLayout == DISASSEM_DATA_COMMAND)
-           newLayout = DISASSEM_DATA_COMMAND;
+         if (cur_layout == SRC_DISASSEM_COMMAND)
+           new_layout = DISASSEM_DATA_COMMAND;
+         else if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND)
+           new_layout = SRC_DATA_COMMAND;
+         else if (cur_layout == DISASSEM_COMMAND ||
+                  cur_layout == DISASSEM_DATA_COMMAND)
+           new_layout = DISASSEM_DATA_COMMAND;
        }
       else
-       newLayout = layoutType;
+       new_layout = layout_type;
 
-      regsPopulate = (newLayout == SRC_DATA_COMMAND ||
-                     newLayout == DISASSEM_DATA_COMMAND ||
-                     regsDisplayType != TUI_UNDEFINED_REGS);
-      if (newLayout != curLayout || regsDisplayType != TUI_UNDEFINED_REGS)
+      regs_populate = (new_layout == SRC_DATA_COMMAND ||
+                     new_layout == DISASSEM_DATA_COMMAND ||
+                     regs_display_type != TUI_UNDEFINED_REGS);
+      if (new_layout != cur_layout || regs_display_type != TUI_UNDEFINED_REGS)
        {
-         if (newLayout != curLayout)
+         if (new_layout != cur_layout)
            {
-             showLayout (newLayout);
+             show_layout (new_layout);
              /*
                 ** Now determine where focus should be
               */
-             if (winWithFocus != cmdWin)
+             if (win_with_focus != TUI_CMD_WIN)
                {
-                 switch (newLayout)
+                 switch (new_layout)
                    {
                    case SRC_COMMAND:
-                     tui_set_win_focus_to (srcWin);
-                     layoutDef->displayMode = SRC_WIN;
-                     layoutDef->split = FALSE;
+                     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
@@ -191,9 +187,9 @@ tui_set_layout (enum tui_layout_type layoutType,
                         ** We still want to show the assembly though!
                       */
                      addr = tui_get_begin_asm_address ();
-                     tui_set_win_focus_to (disassemWin);
-                     layoutDef->displayMode = DISASSEM_WIN;
-                     layoutDef->split = FALSE;
+                     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
@@ -204,19 +200,19 @@ tui_set_layout (enum tui_layout_type layoutType,
                         ** We still want to show the assembly though!
                       */
                      addr = tui_get_begin_asm_address ();
-                     if (winWithFocus == srcWin)
-                       tui_set_win_focus_to (srcWin);
+                     if (win_with_focus == TUI_SRC_WIN)
+                       tui_set_win_focus_to (TUI_SRC_WIN);
                      else
-                       tui_set_win_focus_to (disassemWin);
-                     layoutDef->split = TRUE;
+                       tui_set_win_focus_to (TUI_DISASM_WIN);
+                     layout_def->split = TRUE;
                      break;
                    case SRC_DATA_COMMAND:
-                     if (winWithFocus != dataWin)
-                       tui_set_win_focus_to (srcWin);
+                     if (win_with_focus != TUI_DATA_WIN)
+                       tui_set_win_focus_to (TUI_SRC_WIN);
                      else
-                       tui_set_win_focus_to (dataWin);
-                     layoutDef->displayMode = SRC_WIN;
-                     layoutDef->split = FALSE;
+                       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
@@ -227,35 +223,35 @@ tui_set_layout (enum tui_layout_type layoutType,
                         ** We still want to show the assembly though!
                       */
                      addr = tui_get_begin_asm_address ();
-                     if (winWithFocus != dataWin)
-                       tui_set_win_focus_to (disassemWin);
+                     if (win_with_focus != TUI_DATA_WIN)
+                       tui_set_win_focus_to (TUI_DISASM_WIN);
                      else
-                       tui_set_win_focus_to (dataWin);
-                     layoutDef->displayMode = DISASSEM_WIN;
-                     layoutDef->split = FALSE;
+                       tui_set_win_focus_to (TUI_DATA_WIN);
+                     layout_def->display_mode = DISASSEM_WIN;
+                     layout_def->split = FALSE;
                      break;
                    default:
                      break;
                    }
                }
-             if (newWinWithFocus != (TuiWinInfoPtr) NULL)
-               tui_set_win_focus_to (newWinWithFocus);
+             if (new_win_with_focus != (struct tui_win_info *) NULL)
+               tui_set_win_focus_to (new_win_with_focus);
              /*
                 ** Now update the window content
               */
-             if (!regsPopulate &&
-                 (newLayout == SRC_DATA_COMMAND ||
-                  newLayout == DISASSEM_DATA_COMMAND))
+             if (!regs_populate &&
+                 (new_layout == SRC_DATA_COMMAND ||
+                  new_layout == DISASSEM_DATA_COMMAND))
                tui_display_all_data ();
 
              tui_update_source_windows_with_addr (addr);
            }
-         if (regsPopulate)
+         if (regs_populate)
            {
-             layoutDef->regsDisplayType =
-               (regsDisplayType == TUI_UNDEFINED_REGS ?
-                TUI_GENERAL_REGS : regsDisplayType);
-             tui_show_registers (layoutDef->regsDisplayType);
+             layout_def->regs_display_type =
+               (regs_display_type == TUI_UNDEFINED_REGS ?
+                TUI_GENERAL_REGS : regs_display_type);
+             tui_show_registers (layout_def->regs_display_type);
            }
        }
     }
@@ -271,83 +267,78 @@ tui_set_layout (enum tui_layout_type layoutType,
 void
 tui_add_win_to_layout (enum tui_win_type type)
 {
-  TuiLayoutType curLayout = tui_current_layout ();
+  enum tui_layout_type cur_layout = tui_current_layout ();
 
   switch (type)
     {
     case SRC_WIN:
-      if (curLayout != SRC_COMMAND &&
-         curLayout != SRC_DISASSEM_COMMAND &&
-         curLayout != SRC_DATA_COMMAND)
+      if (cur_layout != SRC_COMMAND &&
+         cur_layout != SRC_DISASSEM_COMMAND &&
+         cur_layout != SRC_DATA_COMMAND)
        {
          tui_clear_source_windows_detail ();
-         if (curLayout == DISASSEM_DATA_COMMAND)
-           showLayout (SRC_DATA_COMMAND);
+         if (cur_layout == DISASSEM_DATA_COMMAND)
+           show_layout (SRC_DATA_COMMAND);
          else
-           showLayout (SRC_COMMAND);
+           show_layout (SRC_COMMAND);
        }
       break;
     case DISASSEM_WIN:
-      if (curLayout != DISASSEM_COMMAND &&
-         curLayout != SRC_DISASSEM_COMMAND &&
-         curLayout != DISASSEM_DATA_COMMAND)
+      if (cur_layout != DISASSEM_COMMAND &&
+         cur_layout != SRC_DISASSEM_COMMAND &&
+         cur_layout != DISASSEM_DATA_COMMAND)
        {
          tui_clear_source_windows_detail ();
-         if (curLayout == SRC_DATA_COMMAND)
-           showLayout (DISASSEM_DATA_COMMAND);
+         if (cur_layout == SRC_DATA_COMMAND)
+           show_layout (DISASSEM_DATA_COMMAND);
          else
-           showLayout (DISASSEM_COMMAND);
+           show_layout (DISASSEM_COMMAND);
        }
       break;
     case DATA_WIN:
-      if (curLayout != SRC_DATA_COMMAND &&
-         curLayout != DISASSEM_DATA_COMMAND)
+      if (cur_layout != SRC_DATA_COMMAND &&
+         cur_layout != DISASSEM_DATA_COMMAND)
        {
-         if (curLayout == DISASSEM_COMMAND)
-           showLayout (DISASSEM_DATA_COMMAND);
+         if (cur_layout == DISASSEM_COMMAND)
+           show_layout (DISASSEM_DATA_COMMAND);
          else
-           showLayout (SRC_DATA_COMMAND);
+           show_layout (SRC_DATA_COMMAND);
        }
       break;
     default:
       break;
     }
-
-  return;
-}                              /* tuiAddWinToLayout */
+}
 
 
-/*
-   ** tuiDefaultWinHeight().
-   **        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.
- */
+/* 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
-tuiDefaultWinHeight (TuiWinType type, TuiLayoutType layout)
+tui_default_win_height (enum tui_win_type type, enum tui_layout_type layout)
 {
   int h;
 
-  if (winList[type] != (TuiWinInfoPtr) NULL)
-    h = winList[type]->generic.height;
+  if (tui_win_list[type] != (struct tui_win_info *) NULL)
+    h = tui_win_list[type]->generic.height;
   else
     {
       switch (layout)
        {
        case SRC_COMMAND:
        case DISASSEM_COMMAND:
-         if (m_winPtrIsNull (cmdWin))
+         if (TUI_CMD_WIN == NULL)
            h = tui_term_height () / 2;
          else
-           h = tui_term_height () - cmdWin->generic.height;
+           h = tui_term_height () - TUI_CMD_WIN->generic.height;
          break;
        case SRC_DISASSEM_COMMAND:
        case SRC_DATA_COMMAND:
        case DISASSEM_DATA_COMMAND:
-         if (m_winPtrIsNull (cmdWin))
+         if (TUI_CMD_WIN == NULL)
            h = tui_term_height () / 3;
          else
-           h = (tui_term_height () - cmdWin->generic.height) / 2;
+           h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
          break;
        default:
          h = 0;
@@ -356,7 +347,7 @@ tuiDefaultWinHeight (TuiWinType type, TuiLayoutType layout)
     }
 
   return h;
-}                              /* tuiDefaultWinHeight */
+}
 
 
 /* Answer the height of a window.  If it hasn't been created yet,
@@ -368,26 +359,23 @@ tui_default_win_viewport_height (enum tui_win_type type,
 {
   int h;
 
-  h = tuiDefaultWinHeight (type, layout);
+  h = tui_default_win_height (type, layout);
 
-  if (winList[type] == cmdWin)
+  if (tui_win_list[type] == TUI_CMD_WIN)
     h -= 1;
   else
     h -= 2;
 
   return h;
-}                              /* tuiDefaultWinViewportHeight */
+}
 
 
-/*
-   ** _initialize_tuiLayout().
-   **        Function to initialize gdb commands, for tui window layout
-   **        manipulation.
- */
+/* Function to initialize gdb commands, for tui window layout
+   manipulation.  */
 void
-_initialize_tuiLayout (void)
+_initialize_tui_layout (void)
 {
-  add_com ("layout", class_tui, _tuiLayout_command,
+  add_com ("layout", class_tui, tui_layout_command,
            "Change the layout of windows.\n\
 Usage: layout prev | next | <layout_name> \n\
 Layout names are:\n\
@@ -402,9 +390,9 @@ Layout names are:\n\
            the window that has current logical focus.\n");
   if (xdb_commands)
     {
-      add_com ("td", class_tui, _tuiToggleLayout_command,
+      add_com ("td", class_tui, tui_toggle_layout_command,
                "Toggle between Source/Command and Disassembly/Command layouts.\n");
-      add_com ("ts", class_tui, _tuiToggleSplitLayout_command,
+      add_com ("ts", class_tui, tui_toggle_split_layout_command,
                "Toggle between Source/Command or Disassembly/Command and \n\
 Source/Disassembly/Command layouts.\n");
     }
@@ -416,84 +404,81 @@ Source/Disassembly/Command layouts.\n");
 **************************/
 
 
-/*
-   ** _tuiSetLayoutTo()
-   **    Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, REGS,
-   **        $REGS, $GREGS, $FREGS, $SREGS.
- */
-TuiStatus
-tui_set_layout_for_display_command (const char *layoutName)
+/* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
+   REGS, $REGS, $GREGS, $FREGS, $SREGS.  */
+enum tui_status
+tui_set_layout_for_display_command (const char *layout_name)
 {
-  TuiStatus status = TUI_SUCCESS;
+  enum tui_status status = TUI_SUCCESS;
 
-  if (layoutName != (char *) NULL)
+  if (layout_name != (char *) NULL)
     {
-      register int i;
-      register char *bufPtr;
-      TuiLayoutType newLayout = UNDEFINED_LAYOUT;
-      TuiRegisterDisplayType dpyType = TUI_UNDEFINED_REGS;
-      TuiLayoutType curLayout = tui_current_layout ();
+      int i;
+      char *buf_ptr;
+      enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
+      enum tui_register_display_type dpy_type = TUI_UNDEFINED_REGS;
+      enum tui_layout_type cur_layout = tui_current_layout ();
 
-      bufPtr = (char *) xstrdup (layoutName);
-      for (i = 0; (i < strlen (layoutName)); i++)
-       bufPtr[i] = toupper (bufPtr[i]);
+      buf_ptr = (char *) xstrdup (layout_name);
+      for (i = 0; (i < strlen (layout_name)); i++)
+       buf_ptr[i] = toupper (buf_ptr[i]);
 
       /* First check for ambiguous input */
-      if (strlen (bufPtr) <= 1 && (*bufPtr == 'S' || *bufPtr == '$'))
+      if (strlen (buf_ptr) <= 1 && (*buf_ptr == 'S' || *buf_ptr == '$'))
        {
          warning ("Ambiguous command input.\n");
          status = TUI_FAILURE;
        }
       else
        {
-         if (subset_compare (bufPtr, "SRC"))
-           newLayout = SRC_COMMAND;
-         else if (subset_compare (bufPtr, "ASM"))
-           newLayout = DISASSEM_COMMAND;
-         else if (subset_compare (bufPtr, "SPLIT"))
-           newLayout = SRC_DISASSEM_COMMAND;
-         else if (subset_compare (bufPtr, "REGS") ||
-                  subset_compare (bufPtr, TUI_GENERAL_SPECIAL_REGS_NAME) ||
-                  subset_compare (bufPtr, TUI_GENERAL_REGS_NAME) ||
-                  subset_compare (bufPtr, TUI_FLOAT_REGS_NAME) ||
-                  subset_compare (bufPtr, TUI_SPECIAL_REGS_NAME))
+         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") ||
+                  subset_compare (buf_ptr, TUI_GENERAL_SPECIAL_REGS_NAME) ||
+                  subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME) ||
+                  subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME) ||
+                  subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
            {
-             if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
-               newLayout = SRC_DATA_COMMAND;
+             if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND)
+               new_layout = SRC_DATA_COMMAND;
              else
-               newLayout = DISASSEM_DATA_COMMAND;
+               new_layout = DISASSEM_DATA_COMMAND;
 
 /* could ifdef out the following code. when compile with -z, there are null 
    pointer references that cause a core dump if 'layout regs' is the first 
    layout command issued by the user. HP has asked us to hook up this code 
    - edie epstein
  */
-             if (subset_compare (bufPtr, TUI_FLOAT_REGS_NAME))
+             if (subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME))
                {
-                 if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
+                 if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
                      TUI_SFLOAT_REGS &&
-                     dataWin->detail.dataDisplayInfo.regsDisplayType !=
+                     TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
                      TUI_DFLOAT_REGS)
-                   dpyType = TUI_SFLOAT_REGS;
+                   dpy_type = TUI_SFLOAT_REGS;
                  else
-                   dpyType =
-                     dataWin->detail.dataDisplayInfo.regsDisplayType;
+                   dpy_type =
+                     TUI_DATA_WIN->detail.data_display_info.regs_display_type;
                }
-             else if (subset_compare (bufPtr,
+             else if (subset_compare (buf_ptr,
                                      TUI_GENERAL_SPECIAL_REGS_NAME))
-               dpyType = TUI_GENERAL_AND_SPECIAL_REGS;
-             else if (subset_compare (bufPtr, TUI_GENERAL_REGS_NAME))
-               dpyType = TUI_GENERAL_REGS;
-             else if (subset_compare (bufPtr, TUI_SPECIAL_REGS_NAME))
-               dpyType = TUI_SPECIAL_REGS;
-             else if (dataWin)
+               dpy_type = TUI_GENERAL_AND_SPECIAL_REGS;
+             else if (subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME))
+               dpy_type = TUI_GENERAL_REGS;
+             else if (subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
+               dpy_type = TUI_SPECIAL_REGS;
+             else if (TUI_DATA_WIN)
                {
-                 if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
+                 if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
                      TUI_UNDEFINED_REGS)
-                   dpyType =
-                     dataWin->detail.dataDisplayInfo.regsDisplayType;
+                   dpy_type =
+                     TUI_DATA_WIN->detail.data_display_info.regs_display_type;
                  else
-                   dpyType = TUI_GENERAL_REGS;
+                   dpy_type = TUI_GENERAL_REGS;
                }
 
 /* end of potential ifdef 
@@ -503,18 +488,18 @@ tui_set_layout_for_display_command (const char *layoutName)
    general purpose registers 
  */
 
-/*              dpyType = TUI_GENERAL_REGS; 
+/*              dpy_type = TUI_GENERAL_REGS; 
  */
            }
-         else if (subset_compare (bufPtr, "NEXT"))
-           newLayout = _nextLayout ();
-         else if (subset_compare (bufPtr, "PREV"))
-           newLayout = _prevLayout ();
+         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;
-         xfree (bufPtr);
+         xfree (buf_ptr);
 
-         tui_set_layout (newLayout, dpyType);
+         tui_set_layout (new_layout, dpy_type);
        }
     }
   else
@@ -525,26 +510,26 @@ tui_set_layout_for_display_command (const char *layoutName)
 
 
 static CORE_ADDR
-_extractDisplayStartAddr (void)
+extract_display_start_addr (void)
 {
-  TuiLayoutType curLayout = tui_current_layout ();
+  enum tui_layout_type cur_layout = tui_current_layout ();
   CORE_ADDR addr;
   CORE_ADDR pc;
   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 
-  switch (curLayout)
+  switch (cur_layout)
     {
     case SRC_COMMAND:
     case SRC_DATA_COMMAND:
       find_line_pc (cursal.symtab,
-                   srcWin->detail.sourceInfo.startLineOrAddr.lineNo,
+                   TUI_SRC_WIN->detail.source_info.start_line_or_addr.line_no,
                    &pc);
       addr = pc;
       break;
     case DISASSEM_COMMAND:
     case SRC_DISASSEM_COMMAND:
     case DISASSEM_DATA_COMMAND:
-      addr = disassemWin->detail.sourceInfo.startLineOrAddr.addr;
+      addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.addr;
       break;
     default:
       addr = 0;
@@ -552,63 +537,58 @@ _extractDisplayStartAddr (void)
     }
 
   return addr;
-}                              /* _extractDisplayStartAddr */
+}
 
 
 static void
-_tuiHandleXDBLayout (TuiLayoutDefPtr layoutDef)
+tui_handle_xdb_layout (struct tui_layout_def * layout_def)
 {
-  if (layoutDef->split)
+  if (layout_def->split)
     {
       tui_set_layout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
-      tui_set_win_focus_to (winList[layoutDef->displayMode]);
+      tui_set_win_focus_to (tui_win_list[layout_def->display_mode]);
     }
   else
     {
-      if (layoutDef->displayMode == SRC_WIN)
+      if (layout_def->display_mode == SRC_WIN)
        tui_set_layout (SRC_COMMAND, TUI_UNDEFINED_REGS);
       else
-       tui_set_layout (DISASSEM_DATA_COMMAND, layoutDef->regsDisplayType);
+       tui_set_layout (DISASSEM_DATA_COMMAND, layout_def->regs_display_type);
     }
-
-
-  return;
-}                              /* _tuiHandleXDBLayout */
+}
 
 
 static void
-_tuiToggleLayout_command (char *arg, int fromTTY)
+tui_toggle_layout_command (char *arg, int from_tty)
 {
-  TuiLayoutDefPtr layoutDef = tui_layout_def ();
+  struct tui_layout_def * layout_def = tui_layout_def ();
 
   /* Make sure the curses mode is enabled.  */
   tui_enable ();
-  if (layoutDef->displayMode == SRC_WIN)
-    layoutDef->displayMode = DISASSEM_WIN;
+  if (layout_def->display_mode == SRC_WIN)
+    layout_def->display_mode = DISASSEM_WIN;
   else
-    layoutDef->displayMode = SRC_WIN;
-
-  if (!layoutDef->split)
-    _tuiHandleXDBLayout (layoutDef);
+    layout_def->display_mode = SRC_WIN;
 
+  if (!layout_def->split)
+    tui_handle_xdb_layout (layout_def);
 }
 
 
 static void
-_tuiToggleSplitLayout_command (char *arg, int fromTTY)
+tui_toggle_split_layout_command (char *arg, int from_tty)
 {
-  TuiLayoutDefPtr layoutDef = tui_layout_def ();
+  struct tui_layout_def * layout_def = tui_layout_def ();
 
   /* Make sure the curses mode is enabled.  */
   tui_enable ();
-  layoutDef->split = (!layoutDef->split);
-  _tuiHandleXDBLayout (layoutDef);
-
+  layout_def->split = (!layout_def->split);
+  tui_handle_xdb_layout (layout_def);
 }
 
 
 static void
-_tuiLayout_command (char *arg, int fromTTY)
+tui_layout_command (char *arg, int from_tty)
 {
   /* Make sure the curses mode is enabled.  */
   tui_enable ();
@@ -619,522 +599,477 @@ _tuiLayout_command (char *arg, int fromTTY)
 
 }
 
-/*
-   ** _nextLayout().
-   **        Answer the previous layout to cycle to.
- */
-static TuiLayoutType
-_nextLayout (void)
+/* Answer the previous layout to cycle to.  */
+static enum tui_layout_type
+next_layout (void)
 {
-  TuiLayoutType newLayout;
+  enum tui_layout_type new_layout;
 
-  newLayout = tui_current_layout ();
-  if (newLayout == UNDEFINED_LAYOUT)
-    newLayout = SRC_COMMAND;
+  new_layout = tui_current_layout ();
+  if (new_layout == UNDEFINED_LAYOUT)
+    new_layout = SRC_COMMAND;
   else
     {
-      newLayout++;
-      if (newLayout == UNDEFINED_LAYOUT)
-       newLayout = SRC_COMMAND;
+      new_layout++;
+      if (new_layout == UNDEFINED_LAYOUT)
+       new_layout = SRC_COMMAND;
     }
 
-  return newLayout;
-}                              /* _nextLayout */
+  return new_layout;
+}
 
 
-/*
-   ** _prevLayout().
-   **        Answer the next layout to cycle to.
- */
-static TuiLayoutType
-_prevLayout (void)
+/* Answer the next layout to cycle to.  */
+static enum tui_layout_type
+prev_layout (void)
 {
-  TuiLayoutType newLayout;
+  enum tui_layout_type new_layout;
 
-  newLayout = tui_current_layout ();
-  if (newLayout == SRC_COMMAND)
-    newLayout = DISASSEM_DATA_COMMAND;
+  new_layout = tui_current_layout ();
+  if (new_layout == SRC_COMMAND)
+    new_layout = DISASSEM_DATA_COMMAND;
   else
     {
-      newLayout--;
-      if (newLayout == UNDEFINED_LAYOUT)
-       newLayout = DISASSEM_DATA_COMMAND;
+      new_layout--;
+      if (new_layout == UNDEFINED_LAYOUT)
+       new_layout = DISASSEM_DATA_COMMAND;
     }
 
-  return newLayout;
-}                              /* _prevLayout */
+  return new_layout;
+}
 
 
 
-/*
-   ** _makeCommandWindow().
- */
 static void
-_makeCommandWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
+make_command_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 {
-  _initAndMakeWin ((Opaque *) winInfoPtr,
+  init_and_make_win ((void **) win_info_ptr,
                   CMD_WIN,
                   height,
                   tui_term_width (),
                   0,
-                  originY,
+                  origin_y,
                   DONT_BOX_WINDOW);
 
-  (*winInfoPtr)->canHighlight = FALSE;
-
-  return;
-}                              /* _makeCommandWindow */
+  (*win_info_ptr)->can_highlight = FALSE;
+}
 
 
 /*
-   ** _makeSourceWindow().
+   ** make_source_window().
  */
 static void
-_makeSourceWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
+make_source_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 {
-  _makeSourceOrDisassemWindow (winInfoPtr, SRC_WIN, height, originY);
+  make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
 
   return;
-}                              /* _makeSourceWindow */
+}                              /* make_source_window */
 
 
 /*
-   ** _makeDisassemWindow().
+   ** make_disasm_window().
  */
 static void
-_makeDisassemWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
+make_disasm_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 {
-  _makeSourceOrDisassemWindow (winInfoPtr, DISASSEM_WIN, height, originY);
+  make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
 
   return;
-}                              /* _makeDisassemWindow */
+}                              /* make_disasm_window */
 
 
-/*
-   ** _makeDataWindow().
- */
 static void
-_makeDataWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
+make_data_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 {
-  _initAndMakeWin ((Opaque *) winInfoPtr,
+  init_and_make_win ((void **) win_info_ptr,
                   DATA_WIN,
                   height,
                   tui_term_width (),
                   0,
-                  originY,
+                  origin_y,
                   BOX_WINDOW);
-
-  return;
-}                              /* _makeDataWindow */
+}
 
 
 
-/*
-   **    _showSourceCommand().
-   **        Show the Source/Command layout
- */
+/* Show the Source/Command layout.  */
 static void
-_showSourceCommand (void)
+show_source_command (void)
 {
-  _showSourceOrDisassemAndCommand (SRC_COMMAND);
-
-  return;
-}                              /* _showSourceCommand */
+  show_source_or_disasm_and_command (SRC_COMMAND);
+}
 
 
-/*
-   **    _showDisassemCommand().
-   **        Show the Dissassem/Command layout
- */
+/* Show the Dissassem/Command layout.  */
 static void
-_showDisassemCommand (void)
+show_disasm_command (void)
 {
-  _showSourceOrDisassemAndCommand (DISASSEM_COMMAND);
-
-  return;
-}                              /* _showDisassemCommand */
+  show_source_or_disasm_and_command (DISASSEM_COMMAND);
+}
 
 
-/*
-   **    _showSourceDisassemCommand().
-   **        Show the Source/Disassem/Command layout
- */
+/* Show the Source/Disassem/Command layout.  */
 static void
-_showSourceDisassemCommand (void)
+show_source_disasm_command (void)
 {
   if (tui_current_layout () != SRC_DISASSEM_COMMAND)
     {
-      int cmdHeight, srcHeight, asmHeight;
+      int cmd_height, src_height, asm_height;
 
-      if (m_winPtrNotNull (cmdWin))
-       cmdHeight = cmdWin->generic.height;
+      if (TUI_CMD_WIN != NULL)
+       cmd_height = TUI_CMD_WIN->generic.height;
       else
-       cmdHeight = tui_term_height () / 3;
+       cmd_height = tui_term_height () / 3;
 
-      srcHeight = (tui_term_height () - cmdHeight) / 2;
-      asmHeight = tui_term_height () - (srcHeight + cmdHeight);
+      src_height = (tui_term_height () - cmd_height) / 2;
+      asm_height = tui_term_height () - (src_height + cmd_height);
 
-      if (m_winPtrIsNull (srcWin))
-       _makeSourceWindow (&srcWin, srcHeight, 0);
+      if (TUI_SRC_WIN == NULL)
+       make_source_window (&TUI_SRC_WIN, src_height, 0);
       else
        {
-         _initGenWinInfo (&srcWin->generic,
-                          srcWin->generic.type,
-                          srcHeight,
-                          srcWin->generic.width,
-                          srcWin->detail.sourceInfo.executionInfo->width,
+         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);
-         srcWin->canHighlight = TRUE;
-         _initGenWinInfo (srcWin->detail.sourceInfo.executionInfo,
+         TUI_SRC_WIN->can_highlight = TRUE;
+         init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
                           EXEC_INFO_WIN,
-                          srcHeight,
+                          src_height,
                           3,
                           0,
                           0);
-         tui_make_visible (&srcWin->generic);
-         tui_make_visible (srcWin->detail.sourceInfo.executionInfo);
-         srcWin->detail.sourceInfo.hasLocator = FALSE;;
+         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;;
        }
-      if (m_winPtrNotNull (srcWin))
+      if (TUI_SRC_WIN != NULL)
        {
-         TuiGenWinInfoPtr locator = tui_locator_win_info_ptr ();
+         struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 
-         tui_show_source_content (srcWin);
-         if (m_winPtrIsNull (disassemWin))
+         tui_show_source_content (TUI_SRC_WIN);
+         if (TUI_DISASM_WIN == NULL)
            {
-             _makeDisassemWindow (&disassemWin, asmHeight, srcHeight - 1);
-             _initAndMakeWin ((Opaque *) & locator,
+             make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
+             init_and_make_win ((void **) & locator,
                               LOCATOR_WIN,
                               2 /* 1 */ ,
                               tui_term_width (),
                               0,
-                              (srcHeight + asmHeight) - 1,
+                              (src_height + asm_height) - 1,
                               DONT_BOX_WINDOW);
            }
          else
            {
-             _initGenWinInfo (locator,
+             init_gen_win_info (locator,
                               LOCATOR_WIN,
                               2 /* 1 */ ,
                               tui_term_width (),
                               0,
-                              (srcHeight + asmHeight) - 1);
-             disassemWin->detail.sourceInfo.hasLocator = TRUE;
-             _initGenWinInfo (
-                               &disassemWin->generic,
-                               disassemWin->generic.type,
-                               asmHeight,
-                               disassemWin->generic.width,
-                       disassemWin->detail.sourceInfo.executionInfo->width,
-                               srcHeight - 1);
-             _initGenWinInfo (disassemWin->detail.sourceInfo.executionInfo,
+                              (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,
-                              asmHeight,
+                              asm_height,
                               3,
                               0,
-                              srcHeight - 1);
-             disassemWin->canHighlight = TRUE;
-             tui_make_visible (&disassemWin->generic);
-             tui_make_visible (disassemWin->detail.sourceInfo.executionInfo);
+                              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 (m_winPtrNotNull (disassemWin))
+         if (TUI_DISASM_WIN != NULL)
            {
-             srcWin->detail.sourceInfo.hasLocator = FALSE;
-             disassemWin->detail.sourceInfo.hasLocator = TRUE;
+             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 (disassemWin);
+             tui_show_source_content (TUI_DISASM_WIN);
 
-             if (m_winPtrIsNull (cmdWin))
-               _makeCommandWindow (&cmdWin,
-                                   cmdHeight,
-                                   tui_term_height () - cmdHeight);
+             if (TUI_CMD_WIN == NULL)
+               make_command_window (&TUI_CMD_WIN,
+                                   cmd_height,
+                                   tui_term_height () - cmd_height);
              else
                {
-                 _initGenWinInfo (&cmdWin->generic,
-                                  cmdWin->generic.type,
-                                  cmdWin->generic.height,
-                                  cmdWin->generic.width,
+                 init_gen_win_info (&TUI_CMD_WIN->generic,
+                                  TUI_CMD_WIN->generic.type,
+                                  TUI_CMD_WIN->generic.height,
+                                  TUI_CMD_WIN->generic.width,
                                   0,
-                                  cmdWin->generic.origin.y);
-                 cmdWin->canHighlight = FALSE;
-                 tui_make_visible (&cmdWin->generic);
+                                  TUI_CMD_WIN->generic.origin.y);
+                 TUI_CMD_WIN->can_highlight = FALSE;
+                 tui_make_visible (&TUI_CMD_WIN->generic);
                }
-             if (m_winPtrNotNull (cmdWin))
-               tui_refresh_win (&cmdWin->generic);
+             if (TUI_CMD_WIN != NULL)
+               tui_refresh_win (&TUI_CMD_WIN->generic);
            }
        }
       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
     }
-
-  return;
-}                              /* _showSourceDisassemCommand */
+}
 
 
-/*
-   **    _showData().
-   **        Show the Source/Data/Command or the Dissassembly/Data/Command layout
- */
+/* Show the Source/Data/Command or the Dissassembly/Data/Command
+   layout.  */
 static void
-_showData (TuiLayoutType newLayout)
+show_data (enum tui_layout_type new_layout)
 {
-  int totalHeight = (tui_term_height () - cmdWin->generic.height);
-  int srcHeight, dataHeight;
-  TuiWinType winType;
-  TuiGenWinInfoPtr locator = tui_locator_win_info_ptr ();
+  int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
+  int src_height, data_height;
+  enum tui_win_type win_type;
+  struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 
 
-  dataHeight = totalHeight / 2;
-  srcHeight = totalHeight - dataHeight;
+  data_height = total_height / 2;
+  src_height = total_height - data_height;
   tui_make_all_invisible ();
   tui_make_invisible (locator);
-  _makeDataWindow (&dataWin, dataHeight, 0);
-  dataWin->canHighlight = TRUE;
-  if (newLayout == SRC_DATA_COMMAND)
-    winType = SRC_WIN;
+  make_data_window (&TUI_DATA_WIN, data_height, 0);
+  TUI_DATA_WIN->can_highlight = TRUE;
+  if (new_layout == SRC_DATA_COMMAND)
+    win_type = SRC_WIN;
   else
-    winType = DISASSEM_WIN;
-  if (m_winPtrIsNull (winList[winType]))
+    win_type = DISASSEM_WIN;
+  if (tui_win_list[win_type] == NULL)
     {
-      if (winType == SRC_WIN)
-       _makeSourceWindow (&winList[winType], srcHeight, dataHeight - 1);
+      if (win_type == SRC_WIN)
+       make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
       else
-       _makeDisassemWindow (&winList[winType], srcHeight, dataHeight - 1);
-      _initAndMakeWin ((Opaque *) & locator,
+       make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
+      init_and_make_win ((void **) & locator,
                       LOCATOR_WIN,
                       2 /* 1 */ ,
                       tui_term_width (),
                       0,
-                      totalHeight - 1,
+                      total_height - 1,
                       DONT_BOX_WINDOW);
     }
   else
     {
-      _initGenWinInfo (&winList[winType]->generic,
-                      winList[winType]->generic.type,
-                      srcHeight,
-                      winList[winType]->generic.width,
-                  winList[winType]->detail.sourceInfo.executionInfo->width,
-                      dataHeight - 1);
-      _initGenWinInfo (winList[winType]->detail.sourceInfo.executionInfo,
+      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,
-                      srcHeight,
+                      src_height,
                       3,
                       0,
-                      dataHeight - 1);
-      tui_make_visible (&winList[winType]->generic);
-      tui_make_visible (winList[winType]->detail.sourceInfo.executionInfo);
-      _initGenWinInfo (locator,
+                      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,
-                      totalHeight - 1);
+                      total_height - 1);
     }
-  winList[winType]->detail.sourceInfo.hasLocator = TRUE;
+  tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
   tui_make_visible (locator);
   tui_show_locator_content ();
-  tui_add_to_source_windows (winList[winType]);
-  tui_set_current_layout_to (newLayout);
-
-  return;
-}                              /* _showData */
+  tui_add_to_source_windows (tui_win_list[win_type]);
+  tui_set_current_layout_to (new_layout);
+}
 
 /*
-   ** _initGenWinInfo().
+   ** init_gen_win_info().
  */
 static void
-_initGenWinInfo (TuiGenWinInfoPtr winInfo, TuiWinType type,
-                 int height, int width, int originX, int originY)
+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)
 {
   int h = height;
 
-  winInfo->type = type;
-  winInfo->width = width;
-  winInfo->height = h;
+  win_info->type = type;
+  win_info->width = width;
+  win_info->height = h;
   if (h > 1)
     {
-      winInfo->viewportHeight = h - 1;
-      if (winInfo->type != CMD_WIN)
-       winInfo->viewportHeight--;
+      win_info->viewport_height = h - 1;
+      if (win_info->type != CMD_WIN)
+       win_info->viewport_height--;
     }
   else
-    winInfo->viewportHeight = 1;
-  winInfo->origin.x = originX;
-  winInfo->origin.y = originY;
+    win_info->viewport_height = 1;
+  win_info->origin.x = origin_x;
+  win_info->origin.y = origin_y;
 
   return;
-}                              /* _initGenWinInfo */
+}                              /* init_gen_win_info */
 
 /*
-   ** _initAndMakeWin().
+   ** init_and_make_win().
  */
 static void
-_initAndMakeWin (Opaque * winInfoPtr, TuiWinType winType,
-                 int height, int width, int originX, int originY, int boxIt)
+init_and_make_win (void ** win_info_ptr, enum tui_win_type win_type,
+                 int height, int width, int origin_x, int origin_y, int box_it)
 {
-  Opaque opaqueWinInfo = *winInfoPtr;
-  TuiGenWinInfoPtr generic;
+  void *opaque_win_info = *win_info_ptr;
+  struct tui_gen_win_info * generic;
 
-  if (opaqueWinInfo == (Opaque) NULL)
+  if (opaque_win_info == NULL)
     {
-      if (m_winIsAuxillary (winType))
-       opaqueWinInfo = (Opaque) tui_alloc_generic_win_info ();
+      if (tui_win_is_auxillary (win_type))
+       opaque_win_info = (void *) tui_alloc_generic_win_info ();
       else
-       opaqueWinInfo = (Opaque) tui_alloc_win_info (winType);
+       opaque_win_info = (void *) tui_alloc_win_info (win_type);
     }
-  if (m_winIsAuxillary (winType))
-    generic = (TuiGenWinInfoPtr) opaqueWinInfo;
+  if (tui_win_is_auxillary (win_type))
+    generic = (struct tui_gen_win_info *) opaque_win_info;
   else
-    generic = &((TuiWinInfoPtr) opaqueWinInfo)->generic;
+    generic = &((struct tui_win_info *) opaque_win_info)->generic;
 
-  if (opaqueWinInfo != (Opaque) NULL)
+  if (opaque_win_info != NULL)
     {
-      _initGenWinInfo (generic, winType, height, width, originX, originY);
-      if (!m_winIsAuxillary (winType))
+      init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
+      if (!tui_win_is_auxillary (win_type))
        {
          if (generic->type == CMD_WIN)
-           ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = FALSE;
+           ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
          else
-           ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = TRUE;
+           ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
        }
-      tui_make_window (generic, boxIt);
+      tui_make_window (generic, box_it);
     }
-  *winInfoPtr = opaqueWinInfo;
+  *win_info_ptr = opaque_win_info;
 }
 
 
-/*
-   ** _makeSourceOrDisassemWindow().
- */
 static void
-_makeSourceOrDisassemWindow (TuiWinInfoPtr * winInfoPtr, TuiWinType type,
-                             int height, int originY)
+make_source_or_disasm_window (struct tui_win_info * * win_info_ptr, enum tui_win_type type,
+                             int height, int origin_y)
 {
-  TuiGenWinInfoPtr executionInfo = (TuiGenWinInfoPtr) NULL;
+  struct tui_gen_win_info * execution_info = (struct tui_gen_win_info *) NULL;
 
   /*
      ** Create the exeuction info window.
    */
   if (type == SRC_WIN)
-    executionInfo = tui_source_exec_info_win_ptr ();
+    execution_info = tui_source_exec_info_win_ptr ();
   else
-    executionInfo = tui_disassem_exec_info_win_ptr ();
-  _initAndMakeWin ((Opaque *) & executionInfo,
+    execution_info = tui_disassem_exec_info_win_ptr ();
+  init_and_make_win ((void **) & execution_info,
                   EXEC_INFO_WIN,
                   height,
                   3,
                   0,
-                  originY,
+                  origin_y,
                   DONT_BOX_WINDOW);
   /*
      ** Now create the source window.
    */
-  _initAndMakeWin ((Opaque *) winInfoPtr,
+  init_and_make_win ((void **) win_info_ptr,
                   type,
                   height,
-                  tui_term_width () - executionInfo->width,
-                  executionInfo->width,
-                  originY,
+                  tui_term_width () - execution_info->width,
+                  execution_info->width,
+                  origin_y,
                   BOX_WINDOW);
 
-  (*winInfoPtr)->detail.sourceInfo.executionInfo = executionInfo;
-
-  return;
-}                              /* _makeSourceOrDisassemWindow */
+  (*win_info_ptr)->detail.source_info.execution_info = execution_info;
+}
 
 
-/*
-   **    _showSourceOrDisassemAndCommand().
-   **        Show the Source/Command or the Disassem layout
- */
+/* Show the Source/Command or the Disassem layout.   */
 static void
-_showSourceOrDisassemAndCommand (TuiLayoutType layoutType)
+show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 {
-  if (tui_current_layout () != layoutType)
+  if (tui_current_layout () != layout_type)
     {
-      TuiWinInfoPtr *winInfoPtr;
-      int srcHeight, cmdHeight;
-      TuiGenWinInfoPtr locator = tui_locator_win_info_ptr ();
+      struct tui_win_info * *win_info_ptr;
+      int src_height, cmd_height;
+      struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 
-      if (m_winPtrNotNull (cmdWin))
-       cmdHeight = cmdWin->generic.height;
+      if (TUI_CMD_WIN != NULL)
+       cmd_height = TUI_CMD_WIN->generic.height;
       else
-       cmdHeight = tui_term_height () / 3;
-      srcHeight = tui_term_height () - cmdHeight;
+       cmd_height = tui_term_height () / 3;
+      src_height = tui_term_height () - cmd_height;
 
 
-      if (layoutType == SRC_COMMAND)
-       winInfoPtr = &srcWin;
+      if (layout_type == SRC_COMMAND)
+       win_info_ptr = &TUI_SRC_WIN;
       else
-       winInfoPtr = &disassemWin;
+       win_info_ptr = &TUI_DISASM_WIN;
 
-      if (m_winPtrIsNull (*winInfoPtr))
+      if ((*win_info_ptr) == NULL)
        {
-         if (layoutType == SRC_COMMAND)
-           _makeSourceWindow (winInfoPtr, srcHeight - 1, 0);
+         if (layout_type == SRC_COMMAND)
+           make_source_window (win_info_ptr, src_height - 1, 0);
          else
-           _makeDisassemWindow (winInfoPtr, srcHeight - 1, 0);
-         _initAndMakeWin ((Opaque *) & locator,
+           make_disasm_window (win_info_ptr, src_height - 1, 0);
+         init_and_make_win ((void **) & locator,
                           LOCATOR_WIN,
                           2 /* 1 */ ,
                           tui_term_width (),
                           0,
-                          srcHeight - 1,
+                          src_height - 1,
                           DONT_BOX_WINDOW);
        }
       else
        {
-         _initGenWinInfo (locator,
+         init_gen_win_info (locator,
                           LOCATOR_WIN,
                           2 /* 1 */ ,
                           tui_term_width (),
                           0,
-                          srcHeight - 1);
-         (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
-         _initGenWinInfo (
-                           &(*winInfoPtr)->generic,
-                           (*winInfoPtr)->generic.type,
-                           srcHeight - 1,
-                           (*winInfoPtr)->generic.width,
-                     (*winInfoPtr)->detail.sourceInfo.executionInfo->width,
+                          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);
-         _initGenWinInfo ((*winInfoPtr)->detail.sourceInfo.executionInfo,
+         init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
                           EXEC_INFO_WIN,
-                          srcHeight - 1,
+                          src_height - 1,
                           3,
                           0,
                           0);
-         (*winInfoPtr)->canHighlight = TRUE;
-         tui_make_visible (&(*winInfoPtr)->generic);
-         tui_make_visible ((*winInfoPtr)->detail.sourceInfo.executionInfo);
+         (*win_info_ptr)->can_highlight = TRUE;
+         tui_make_visible (&(*win_info_ptr)->generic);
+         tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
        }
-      if (m_winPtrNotNull (*winInfoPtr))
+      if ((*win_info_ptr) != NULL)
        {
-         (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
+         (*win_info_ptr)->detail.source_info.has_locator = TRUE;
          tui_make_visible (locator);
          tui_show_locator_content ();
-         tui_show_source_content (*winInfoPtr);
+         tui_show_source_content (*win_info_ptr);
 
-         if (m_winPtrIsNull (cmdWin))
+         if (TUI_CMD_WIN == NULL)
            {
-             _makeCommandWindow (&cmdWin, cmdHeight, srcHeight);
-             tui_refresh_win (&cmdWin->generic);
+             make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
+             tui_refresh_win (&TUI_CMD_WIN->generic);
            }
          else
            {
-             _initGenWinInfo (&cmdWin->generic,
-                              cmdWin->generic.type,
-                              cmdWin->generic.height,
-                              cmdWin->generic.width,
-                              cmdWin->generic.origin.x,
-                              cmdWin->generic.origin.y);
-             cmdWin->canHighlight = FALSE;
-             tui_make_visible (&cmdWin->generic);
+             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);
            }
        }
-      tui_set_current_layout_to (layoutType);
+      tui_set_current_layout_to (layout_type);
     }
-
-  return;
-}                              /* _showSourceOrDisassemAndCommand */
+}
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