Introduce has_locator method

This changes tui_win_has_locator to be a method on tui_win_info, and
changes the locator code to use bool rather than int.

gdb/ChangeLog
2019-06-25  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.c (make_invisible_and_set_new_height)
	(make_visible_with_new_height): Call has_locator method.
	* tui/tui-layout.c (show_source_disasm_command, show_data)
	(show_source_or_disasm_and_command): Update for bool change.
	* tui/tui-data.h (struct tui_source_info) <has_locator>: Now bool.
	(tui_win_info) <has_locator>: New method.
	(struct tui_source_window_base) <has_locator>: New method.
	(tui_win_has_locator): Don't declare.
	* tui/tui-data.c (tui_source_window_base::has_locator): Rename
	from tui_win_has_locator.
	(tui_source_window_base): Use false, not FALSE.

5 files changed, 40 insertions, 16 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 18bffd1..5bee65a 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,19 @@
 2019-06-25  Tom Tromey  <tom@tromey.com>
 
+	* tui/tui-win.c (make_invisible_and_set_new_height)
+	(make_visible_with_new_height): Call has_locator method.
+	* tui/tui-layout.c (show_source_disasm_command, show_data)
+	(show_source_or_disasm_and_command): Update for bool change.
+	* tui/tui-data.h (struct tui_source_info) <has_locator>: Now bool.
+	(tui_win_info) <has_locator>: New method.
+	(struct tui_source_window_base) <has_locator>: New method.
+	(tui_win_has_locator): Don't declare.
+	* tui/tui-data.c (tui_source_window_base::has_locator): Rename
+	from tui_win_has_locator.
+	(tui_source_window_base): Use false, not FALSE.
+
+2019-06-25  Tom Tromey  <tom@tromey.com>
+
 	* tui/tui-data.h (tui_clear_win_detail): Don't declare.
 	* tui/tui-data.c (tui_clear_source_windows_detail): Call the
 	clear_detail method directly.
diff --git a/gdb/tui/tui-data.c b/gdb/tui/tui-data.c
index 1e1bc03..be17061 100644
--- a/gdb/tui/tui-data.c
+++ b/gdb/tui/tui-data.c
@@ -75,11 +75,12 @@ tui_win_is_auxillary (enum tui_win_type win_type)
   return (win_type > MAX_MAJOR_WINDOWS);
 }
 
-int
-tui_win_has_locator (struct tui_win_info *win_info)
+/* See tui-data.h.  */
+
+bool
+tui_source_window_base::has_locator () const
 {
-  return (win_info != NULL 
-	  && win_info->detail.source_info.has_locator);
+  return detail.source_info.has_locator;
 }
 
 void
@@ -499,7 +500,7 @@ tui_source_window_base::tui_source_window_base (enum tui_win_type type)
 {
   gdb_assert (type == SRC_WIN || type == DISASSEM_WIN);
   detail.source_info.execution_info = NULL;
-  detail.source_info.has_locator = FALSE;
+  detail.source_info.has_locator = false;
   detail.source_info.horizontal_offset = 0;
   detail.source_info.gdbarch = NULL;
   detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index c4ef455..9b7364b 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -240,7 +240,8 @@ struct tui_data_info
 
 struct tui_source_info
 {
-  int has_locator;		/* Does locator belongs to this window?  */
+  /* Does the locator belong to this window?  */
+  bool has_locator;
   /* Execution information window.  */
   struct tui_gen_win_info *execution_info;
   int horizontal_offset;	/* Used for horizontal scroll.  */
@@ -285,6 +286,12 @@ public:
   /* Clear the pertinent detail in the window.  */
   virtual void clear_detail () = 0;
 
+  /* Return true if this window has the locator.  */
+  virtual bool has_locator () const
+  {
+    return false;
+  }
+
   /* Methods to scroll the contents of this window.  Note that they
      are named with "_scroll" coming at the end because the more
      obvious "scroll_forward" is defined as a macro in term.h.  */
@@ -325,6 +332,9 @@ protected:
 public:
 
   void clear_detail () override;
+
+  /* Return true if this window has the locator.  */
+  bool has_locator () const override;
 };
 
 /* A TUI source window.  */
@@ -401,7 +411,6 @@ protected:
 
 extern int tui_win_is_source_type (enum tui_win_type win_type);
 extern int tui_win_is_auxillary (enum tui_win_type win_type);
-extern int tui_win_has_locator (struct tui_win_info *win_info);
 extern void tui_set_win_highlight (struct tui_win_info *win_info,
 				   int highlight);
 
diff --git a/gdb/tui/tui-layout.c b/gdb/tui/tui-layout.c
index 8c3ece0..f4df492 100644
--- a/gdb/tui/tui-layout.c
+++ b/gdb/tui/tui-layout.c
@@ -640,7 +640,7 @@ show_source_disasm_command (void)
 			     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;;
+	  TUI_SRC_WIN->detail.source_info.has_locator = false;
 	}
 
       struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
@@ -667,7 +667,7 @@ show_source_disasm_command (void)
 			     tui_term_width (),
 			     0,
 			     (src_height + asm_height) - 1);
-	  TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
+	  TUI_DISASM_WIN->detail.source_info.has_locator = true;
 	  init_gen_win_info (&TUI_DISASM_WIN->generic,
 			     TUI_DISASM_WIN->generic.type,
 			     asm_height,
@@ -684,8 +684,8 @@ show_source_disasm_command (void)
 	  tui_make_visible (&TUI_DISASM_WIN->generic);
 	  tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
 	}
-      TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
-      TUI_DISASM_WIN->detail.source_info.has_locator = 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 (TUI_DISASM_WIN);
@@ -772,7 +772,7 @@ show_data (enum tui_layout_type new_layout)
 			 0,
 			 total_height - 1);
     }
-  tui_win_list[win_type]->detail.source_info.has_locator = 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 (tui_win_list[win_type]);
@@ -924,7 +924,7 @@ show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 			     tui_term_width (),
 			     0,
 			     src_height - 1);
-	  (*win_info_ptr)->detail.source_info.has_locator = TRUE;
+	  (*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,
@@ -943,7 +943,7 @@ show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 	}
       if ((*win_info_ptr) != NULL)
 	{
-	  (*win_info_ptr)->detail.source_info.has_locator = TRUE;
+	  (*win_info_ptr)->detail.source_info.has_locator = true;
 	  tui_make_visible (locator);
 	  tui_show_locator_content ();
 	  tui_show_source_content (*win_info_ptr);
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index 4dad144..5c807ad 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -1283,7 +1283,7 @@ make_invisible_and_set_new_height (struct tui_win_info *win_info,
       if (win_info != TUI_CMD_WIN)
 	gen_win_info->viewport_height--;
 
-      if (tui_win_has_locator (win_info))
+      if (win_info->has_locator ())
 	{
 	  gen_win_info = tui_locator_win_info_ptr ();
 	  tui_make_invisible (gen_win_info);
@@ -1355,7 +1355,7 @@ make_visible_with_new_height (struct tui_win_info *win_info)
 	    }
 	  tui_update_source_window (win_info, gdbarch, s, line, TRUE);
 	}
-      if (tui_win_has_locator (win_info))
+      if (win_info->has_locator ())
 	{
 	  tui_make_visible (tui_locator_win_info_ptr ());
 	  tui_show_locator_content ();