1 /* TUI display registers in window. 2 3 Copyright (C) 1998-2020 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 27 /* A data item window. */ 28 29 struct tui_data_item_window 30 { 31 tui_data_item_window () = default; 32 33 DISABLE_COPY_AND_ASSIGN (tui_data_item_window); 34 35 tui_data_item_window (tui_data_item_window &&) = default; 36 37 void rerender (WINDOW *handle, int field_width); 38 39 /* Location. */ 40 int x = 0; 41 int y = 0; 42 /* The register number. */ 43 int regno = -1; 44 bool highlight = false; 45 bool visible = false; 46 std::string content; 47 }; 48 49 /* The TUI registers window. */ 50 struct tui_data_window : public tui_win_info 51 { 52 tui_data_window () = default; 53 54 DISABLE_COPY_AND_ASSIGN (tui_data_window); 55 56 const char *name () const override 57 { 58 return DATA_NAME; 59 } 60 61 void check_register_values (struct frame_info *frame); 62 63 void show_registers (struct reggroup *group); 64 65 struct reggroup *get_current_group () const 66 { 67 return m_current_group; 68 } 69 70 protected: 71 72 void do_scroll_vertical (int num_to_scroll) override; 73 void do_scroll_horizontal (int num_to_scroll) override 74 { 75 } 76 77 void rerender () override; 78 79 private: 80 81 /* Display the registers in the content from 'start_element_no' 82 until the end of the register content or the end of the display 83 height. No checking for displaying past the end of the registers 84 is done here. */ 85 void display_registers_from (int start_element_no); 86 87 /* Display the registers starting at line line_no in the data 88 window. Answers the line number that the display actually 89 started from. If nothing is displayed (-1) is returned. */ 90 int display_registers_from_line (int line_no); 91 92 /* Return the index of the first element displayed. If none are 93 displayed, then return -1. */ 94 int first_data_item_displayed (); 95 96 /* Display the registers in the content from 'start_element_no' on 97 'start_line_no' until the end of the register content or the end 98 of the display height. This function checks that we won't 99 display off the end of the register display. */ 100 void display_reg_element_at_line (int start_element_no, int start_line_no); 101 102 void show_register_group (struct reggroup *group, 103 struct frame_info *frame, 104 bool refresh_values_only); 105 106 /* Answer the number of the last line in the regs display. If there 107 are no registers (-1) is returned. */ 108 int last_regs_line_no () const; 109 110 /* Answer the line number that the register element at element_no is 111 on. If element_no is greater than the number of register 112 elements there are, -1 is returned. */ 113 int line_from_reg_element_no (int element_no) const; 114 115 /* Answer the index of the first element in line_no. If line_no is 116 past the register area (-1) is returned. */ 117 int first_reg_element_no_inline (int line_no) const; 118 119 /* Delete all the item windows in the data window. This is usually 120 done when the data window is scrolled. */ 121 void delete_data_content_windows (); 122 123 void erase_data_content (const char *prompt); 124 125 /* Windows that are used to display registers. */ 126 std::vector<tui_data_item_window> m_regs_content; 127 int m_regs_column_count = 0; 128 struct reggroup *m_current_group = nullptr; 129 130 /* Width of each register's display area. */ 131 int m_item_width = 0; 132 }; 133 134 #endif /* TUI_TUI_REGS_H */ 135