1 /* TUI display registers in window. 2 3 Copyright (C) 1998-2023 Free Software Foundation, Inc. 4 5 Contributed by Hewlett-Packard Company. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #ifndef TUI_TUI_REGS_H 23 #define TUI_TUI_REGS_H 24 25 #include "tui/tui-data.h" 26 #include "reggroups.h" 27 28 /* A data item window. */ 29 30 struct tui_data_item_window 31 { 32 tui_data_item_window () = default; 33 34 DISABLE_COPY_AND_ASSIGN (tui_data_item_window); 35 36 tui_data_item_window (tui_data_item_window &&) = default; 37 38 void rerender (WINDOW *handle, int field_width); 39 40 /* Location. */ 41 int x = 0; 42 int y = 0; 43 /* The register number. */ 44 int regno = -1; 45 bool highlight = false; 46 bool visible = false; 47 std::string content; 48 }; 49 50 /* The TUI registers window. */ 51 struct tui_data_window : public tui_win_info 52 { 53 tui_data_window () = default; 54 55 DISABLE_COPY_AND_ASSIGN (tui_data_window); 56 57 const char *name () const override 58 { 59 return DATA_NAME; 60 } 61 62 void check_register_values (frame_info_ptr frame); 63 64 void show_registers (const reggroup *group); 65 66 const reggroup *get_current_group () const 67 { 68 return m_current_group; 69 } 70 71 protected: 72 73 void do_scroll_vertical (int num_to_scroll) override; 74 void do_scroll_horizontal (int num_to_scroll) override 75 { 76 } 77 78 void rerender () override; 79 80 private: 81 82 /* Display the registers in the content from 'start_element_no' 83 until the end of the register content or the end of the display 84 height. No checking for displaying past the end of the registers 85 is done here. */ 86 void display_registers_from (int start_element_no); 87 88 /* Display the registers starting at line line_no in the data 89 window. Answers the line number that the display actually 90 started from. If nothing is displayed (-1) is returned. */ 91 int display_registers_from_line (int line_no); 92 93 /* Return the index of the first element displayed. If none are 94 displayed, then return -1. */ 95 int first_data_item_displayed (); 96 97 /* Display the registers in the content from 'start_element_no' on 98 'start_line_no' until the end of the register content or the end 99 of the display height. This function checks that we won't 100 display off the end of the register display. */ 101 void display_reg_element_at_line (int start_element_no, int start_line_no); 102 103 void show_register_group (const reggroup *group, 104 frame_info_ptr frame, 105 bool refresh_values_only); 106 107 /* Answer the number of the last line in the regs display. If there 108 are no registers (-1) is returned. */ 109 int last_regs_line_no () const; 110 111 /* Answer the line number that the register element at element_no is 112 on. If element_no is greater than the number of register 113 elements there are, -1 is returned. */ 114 int line_from_reg_element_no (int element_no) const; 115 116 /* Answer the index of the first element in line_no. If line_no is 117 past the register area (-1) is returned. */ 118 int first_reg_element_no_inline (int line_no) const; 119 120 /* Delete all the item windows in the data window. This is usually 121 done when the data window is scrolled. */ 122 void delete_data_content_windows (); 123 124 void erase_data_content (const char *prompt); 125 126 /* Windows that are used to display registers. */ 127 std::vector<tui_data_item_window> m_regs_content; 128 int m_regs_column_count = 0; 129 const reggroup *m_current_group = nullptr; 130 131 /* Width of each register's display area. */ 132 int m_item_width = 0; 133 }; 134 135 #endif /* TUI_TUI_REGS_H */ 136