Move max_height method to tui_gen_win_info

[deliverable/binutils-gdb.git] / gdb / tui / tui-regs.h

diff --git a/gdb/tui/tui-regs.h b/gdb/tui/tui-regs.h
index a91ef96bd18834bc73db65dc8b00b14d5278a169..d476bcffee19561cceab2d2e7d6dab659da6a7c7 100644 (file)
--- a/gdb/tui/tui-regs.h
+++ b/gdb/tui/tui-regs.h
@@ -1,7 +1,6 @@
 /* TUI display registers in window.
 
-   Copyright (C) 1998-2001, 2004, 2007-2012 Free Software Foundation,
-   Inc.
+   Copyright (C) 1998-2019 Free Software Foundation, Inc.
 
    Contributed by Hewlett-Packard Company.
 
@@ -20,18 +19,125 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifndef TUI_REGS_H
-#define TUI_REGS_H
+#ifndef TUI_TUI_REGS_H
+#define TUI_TUI_REGS_H
 
-#include "tui/tui-data.h"  /* For struct tui_register_display_type.  */
+#include "tui/tui-data.h"
 
-extern void tui_check_register_values (struct frame_info *);
-extern void tui_show_registers (struct reggroup *group);
-extern void tui_display_registers_from (int);
-extern int tui_display_registers_from_line (int, int);
-extern int tui_last_regs_line_no (void);
-extern int tui_first_reg_element_inline (int);
-extern int tui_line_from_reg_element_no (int);
-extern int tui_first_reg_element_no_inline (int lineno);
+/* A data item window.  */
 
-#endif
+struct tui_data_item_window : public tui_gen_win_info
+{
+  tui_data_item_window ()
+    : tui_gen_win_info (DATA_ITEM_WIN)
+  {
+  }
+
+  DISABLE_COPY_AND_ASSIGN (tui_data_item_window);
+
+  tui_data_item_window (tui_data_item_window &&) = default;
+
+  void rerender () override;
+
+  void refresh_window () override;
+
+  int max_height () const override
+  {
+    return 1;
+  }
+
+  const char *name = nullptr;
+  /* The register number, or data display number.  */
+  int item_no = -1;
+  bool highlight = false;
+  gdb::unique_xmalloc_ptr<char> content;
+};
+
+/* The TUI registers window.  */
+struct tui_data_window : public tui_win_info
+{
+  tui_data_window ()
+    : tui_win_info (DATA_WIN)
+  {
+  }
+
+  DISABLE_COPY_AND_ASSIGN (tui_data_window);
+
+  void refresh_window () override;
+
+  const char *name () const override
+  {
+    return DATA_NAME;
+  }
+
+  void check_register_values (struct frame_info *frame);
+
+  void show_registers (struct reggroup *group);
+
+  struct reggroup *get_current_group () const
+  {
+    return m_current_group;
+  }
+
+protected:
+
+  void do_scroll_vertical (int num_to_scroll) override;
+  void do_scroll_horizontal (int num_to_scroll) override
+  {
+  }
+
+  void rerender () override;
+
+private:
+
+  /* Display the registers in the content from 'start_element_no'
+     until the end of the register content or the end of the display
+     height.  No checking for displaying past the end of the registers
+     is done here.  */
+  void display_registers_from (int start_element_no);
+
+  /* Display the registers starting at line line_no in the data
+     window.  Answers the line number that the display actually
+     started from.  If nothing is displayed (-1) is returned.  */
+  int display_registers_from_line (int line_no);
+
+  /* Return the index of the first element displayed.  If none are
+     displayed, then return -1.  */
+  int first_data_item_displayed ();
+
+  /* Display the registers in the content from 'start_element_no' on
+     'start_line_no' until the end of the register content or the end
+     of the display height.  This function checks that we won't
+     display off the end of the register display.  */
+  void display_reg_element_at_line (int start_element_no, int start_line_no);
+
+  void show_register_group (struct reggroup *group,
+                           struct frame_info *frame,
+                           bool refresh_values_only);
+
+  /* Answer the number of the last line in the regs display.  If there
+     are no registers (-1) is returned.  */
+  int last_regs_line_no () const;
+
+  /* Answer the line number that the register element at element_no is
+     on.  If element_no is greater than the number of register
+     elements there are, -1 is returned.  */
+  int line_from_reg_element_no (int element_no) const;
+
+  /* Answer the index of the first element in line_no.  If line_no is
+     past the register area (-1) is returned.  */
+  int first_reg_element_no_inline (int line_no) const;
+
+  /* Delete all the item windows in the data window.  This is usually
+     done when the data window is scrolled.  */
+  void delete_data_content_windows ();
+
+  void erase_data_content (const char *prompt);
+
+  /* Windows that are used to display registers.  */
+  std::vector<tui_data_item_window> m_regs_content;
+  int m_regs_column_count = 0;
+  struct reggroup *m_current_group = nullptr;
+};
+
+#endif /* TUI_TUI_REGS_H */