Create tui_disasm_window

This introduces the new tui_disasm_window class, which represents a
disassembly window.  It shares a lot of behavior with the source
window, so a new tui_source_window_base class is also created.

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

	* tui/tui-data.h (struct tui_source_window_base): New struct.
	(struct tui_source_window): Derive from tui_source_window_base.
	(struct tui_disasm_window): New struct.
	* tui/tui-data.c (tui_source_window_base::clear_detail): Rename
	from tui_source_window::clear_detail.
	(tui_source_window_base): Rename from tui_source_window.
	(~tui_source_window_base): Rename from ~tui_source_window.
	(tui_alloc_win_info): Create a tui_disasm_window.

1 files changed, 34 insertions, 4 deletions

diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index 7adeb56..e09aad6 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -291,15 +291,45 @@ public:
   int is_highlighted = 0;
 };
 
-struct tui_source_window : public tui_win_info
+/* The base class for all source-like windows, namely the source and
+   disassembly windows.  */
+
+struct tui_source_window_base : public tui_win_info
 {
-  explicit tui_source_window (enum tui_win_type type);
-  ~tui_source_window () override;
-  DISABLE_COPY_AND_ASSIGN (tui_source_window);
+protected:
+  explicit tui_source_window_base (enum tui_win_type type);
+  ~tui_source_window_base () override;
+  DISABLE_COPY_AND_ASSIGN (tui_source_window_base);
+
+public:
 
   void clear_detail () override;
 };
 
+/* A TUI source window.  */
+
+struct tui_source_window : public tui_source_window_base
+{
+  tui_source_window ()
+    : tui_source_window_base (SRC_WIN)
+  {
+  }
+
+  DISABLE_COPY_AND_ASSIGN (tui_source_window);
+};
+
+/* A TUI disassembly window.  */
+
+struct tui_disasm_window : public tui_source_window_base
+{
+  tui_disasm_window ()
+    : tui_source_window_base (DISASSEM_WIN)
+  {
+  }
+
+  DISABLE_COPY_AND_ASSIGN (tui_disasm_window);
+};
+
 struct tui_data_window : public tui_win_info
 {
   tui_data_window ();