aboutsummaryrefslogtreecommitdiff
path: root/gdb/tui/tui-regs.h
blob: 5adff6300aa59f98dad453510016f01c1e5386d1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/* TUI display registers in window.

   Copyright (C) 1998-2023 Free Software Foundation, Inc.

   Contributed by Hewlett-Packard Company.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   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_TUI_REGS_H
#define TUI_TUI_REGS_H

#include "tui/tui-data.h"
#include "reggroups.h"

/* A data item window.  */

struct tui_data_item_window
{
  tui_data_item_window () = default;

  DISABLE_COPY_AND_ASSIGN (tui_data_item_window);

  tui_data_item_window (tui_data_item_window &&) = default;

  void rerender (WINDOW *handle, int field_width);

  /* Location.  */
  int x = 0;
  int y = 0;
  /* The register number.  */
  int regno = -1;
  bool highlight = false;
  bool visible = false;
  std::string content;
};

/* The TUI registers window.  */
struct tui_data_window : public tui_win_info
{
  tui_data_window () = default;

  DISABLE_COPY_AND_ASSIGN (tui_data_window);

  const char *name () const override
  {
    return DATA_NAME;
  }

  void check_register_values (frame_info_ptr frame);

  void show_registers (const reggroup *group);

  const 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 (const reggroup *group,
			    frame_info_ptr 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;
  const reggroup *m_current_group = nullptr;

  /* Width of each register's display area.  */
  int m_item_width = 0;
};

#endif /* TUI_TUI_REGS_H */