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/* TUI display registers in window.
Copyright (C) 1998-2024 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 GDB_TUI_TUI_REGS_H
#define GDB_TUI_TUI_REGS_H
#include "gdbsupport/gdb-checked-static-cast.h"
#include "tui/tui-data.h"
#include "reggroups.h"
/* Information about the display of a single register. */
struct tui_register_info
{
tui_register_info (int regno, const frame_info_ptr &frame)
: m_regno (regno)
{
update (frame);
}
DISABLE_COPY_AND_ASSIGN (tui_register_info);
tui_register_info (tui_register_info &&) = default;
void update (const frame_info_ptr &frame);
void rerender (WINDOW *handle, int field_width);
bool visible () const
{ return y > 0; }
bool highlighted () const
{ return m_highlight; }
/* Location. */
int x = 0;
int y = 0;
std::string content;
private:
/* True if currently highlighted. */
bool m_highlight = false;
/* The register number. */
const int m_regno;
};
/* The TUI registers window. */
struct tui_data_window : public tui_win_info
{
tui_data_window ()
{
update_register_data (nullptr);
}
DISABLE_COPY_AND_ASSIGN (tui_data_window);
const char *name () const override
{
return DATA_NAME;
}
void check_register_values (const frame_info_ptr &frame);
/* Set the current register and redisplay the window. If GROUP is
NULL, the general register group will be used. */
void set_register_group (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 update_register_data (const reggroup *group);
/* 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;
void erase_data_content ();
/* Information about each register in the current register group. */
std::vector<tui_register_info> 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;
/* Architecture of frame whose registers are being displayed, or
nullptr if the display is empty (i.e., there is no frame). */
gdbarch *m_gdbarch = nullptr;
};
/* Return the instance of the registers window. */
inline tui_data_window *
tui_data_win ()
{
return gdb::checked_static_cast<tui_data_window *> (tui_win_list[DATA_WIN]);
}
#endif /* GDB_TUI_TUI_REGS_H */
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