1 /* Data/register window display. 2 3 Copyright (C) 1998-2013 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 #include "defs.h" 23 #include "tui/tui.h" 24 #include "tui/tui-data.h" 25 #include "tui/tui-wingeneral.h" 26 #include "tui/tui-regs.h" 27 #include "tui/tui-windata.h" 28 29 #include "gdb_string.h" 30 #include "gdb_curses.h" 31 32 33 /***************************************** 34 ** STATIC LOCAL FUNCTIONS FORWARD DECLS ** 35 ******************************************/ 36 37 38 39 /***************************************** 40 ** PUBLIC FUNCTIONS ** 41 ******************************************/ 42 43 44 /* Answer the index first element displayed. If none are displayed, 45 then return (-1). */ 46 int 47 tui_first_data_item_displayed (void) 48 { 49 int element_no = (-1); 50 int i; 51 52 for (i = 0; 53 i < TUI_DATA_WIN->generic.content_size && element_no < 0; 54 i++) 55 { 56 struct tui_gen_win_info *data_item_win; 57 58 data_item_win = &((tui_win_content) 59 TUI_DATA_WIN->generic.content)[i]->which_element.data_window; 60 if (data_item_win->handle != (WINDOW *) NULL 61 && data_item_win->is_visible) 62 element_no = i; 63 } 64 65 return element_no; 66 } 67 68 69 /* Answer the index of the first element in line_no. If line_no is 70 past the data area (-1) is returned. */ 71 int 72 tui_first_data_element_no_in_line (int line_no) 73 { 74 int first_element_no = (-1); 75 76 /* First see if there is a register on line_no, and if so, set the 77 first element number. */ 78 if ((first_element_no = tui_first_reg_element_no_inline (line_no)) == -1) 79 { /* Looking at the general data, the 1st element on line_no. */ 80 } 81 82 return first_element_no; 83 } 84 85 86 /* Function to delete all the item windows in the data window. This 87 is usually done when the data window is scrolled. */ 88 void 89 tui_delete_data_content_windows (void) 90 { 91 int i; 92 struct tui_gen_win_info *data_item_win_ptr; 93 94 for (i = 0; (i < TUI_DATA_WIN->generic.content_size); i++) 95 { 96 data_item_win_ptr = &((tui_win_content) 97 TUI_DATA_WIN->generic.content)[i]->which_element.data_window; 98 tui_delete_win (data_item_win_ptr->handle); 99 data_item_win_ptr->handle = (WINDOW *) NULL; 100 data_item_win_ptr->is_visible = FALSE; 101 } 102 } 103 104 105 void 106 tui_erase_data_content (char *prompt) 107 { 108 werase (TUI_DATA_WIN->generic.handle); 109 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN); 110 if (prompt != (char *) NULL) 111 { 112 int half_width = (TUI_DATA_WIN->generic.width - 2) / 2; 113 int x_pos; 114 115 if (strlen (prompt) >= half_width) 116 x_pos = 1; 117 else 118 x_pos = half_width - strlen (prompt); 119 mvwaddstr (TUI_DATA_WIN->generic.handle, 120 (TUI_DATA_WIN->generic.height / 2), 121 x_pos, 122 prompt); 123 } 124 wrefresh (TUI_DATA_WIN->generic.handle); 125 } 126 127 128 /* This function displays the data that is in the data window's 129 content. It does not set the content. */ 130 void 131 tui_display_all_data (void) 132 { 133 if (TUI_DATA_WIN->generic.content_size <= 0) 134 tui_erase_data_content (NO_DATA_STRING); 135 else 136 { 137 tui_erase_data_content ((char *) NULL); 138 tui_delete_data_content_windows (); 139 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN); 140 tui_display_registers_from (0); 141 142 /* Then display the other data. */ 143 if (TUI_DATA_WIN->detail.data_display_info.data_content != 144 (tui_win_content) NULL 145 && TUI_DATA_WIN->detail.data_display_info.data_content_count > 0) 146 { 147 } 148 } 149 } 150 151 152 /* Function to display the data starting at line, line_no, in the data 153 window. */ 154 void 155 tui_display_data_from_line (int line_no) 156 { 157 int _line_no = line_no; 158 159 if (line_no < 0) 160 _line_no = 0; 161 162 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN); 163 164 /* There is no general data, force regs to display (if there are 165 any). */ 166 if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0) 167 tui_display_registers_from_line (_line_no, TRUE); 168 else 169 { 170 int regs_last_line = tui_last_regs_line_no (); 171 172 173 /* Display regs if we can. */ 174 if (tui_display_registers_from_line (_line_no, FALSE) < 0) 175 { /* _line_no is past the regs display, so calc where the 176 start data element is. */ 177 if (regs_last_line < _line_no) 178 { /* Figure out how many lines each element is to obtain 179 the start element_no. */ 180 } 181 } 182 else 183 { /* Calculate the starting element of the data display, given 184 regs_last_line and how many lines each element is, up to 185 _line_no. */ 186 } 187 /* Now display the data , starting at element_no. */ 188 } 189 } 190 191 192 /* Display data starting at element element_no. */ 193 void 194 tui_display_data_from (int element_no, int reuse_windows) 195 { 196 int first_line = (-1); 197 198 if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count) 199 first_line = tui_line_from_reg_element_no (element_no); 200 else 201 { /* Calculate the first_line from the element number. */ 202 } 203 204 if (first_line >= 0) 205 { 206 tui_erase_data_content ((char *) NULL); 207 if (!reuse_windows) 208 tui_delete_data_content_windows (); 209 tui_display_data_from_line (first_line); 210 } 211 } 212 213 214 /* Function to redisplay the contents of the data window. */ 215 void 216 tui_refresh_data_win (void) 217 { 218 tui_erase_data_content ((char *) NULL); 219 if (TUI_DATA_WIN->generic.content_size > 0) 220 { 221 int first_element = tui_first_data_item_displayed (); 222 223 if (first_element >= 0) /* Re-use existing windows. */ 224 tui_display_data_from (first_element, TRUE); 225 } 226 } 227 228 229 /* Function to check the data values and hilite any that have 230 changed. */ 231 void 232 tui_check_data_values (struct frame_info *frame) 233 { 234 tui_check_register_values (frame); 235 236 /* Now check any other data values that there are. */ 237 if (TUI_DATA_WIN != NULL && TUI_DATA_WIN->generic.is_visible) 238 { 239 int i; 240 241 for (i = 0; 242 TUI_DATA_WIN->detail.data_display_info.data_content_count; 243 i++) 244 { 245 #ifdef LATER 246 tui_data_element_ptr data_element_ptr; 247 struct tui_gen_win_info *data_item_win_ptr; 248 Opaque new_value; 249 250 data_item_ptr = &TUI_DATA_WIN->detail.data_display_info. 251 data_content[i]->which_element.data_window; 252 data_element_ptr = &((tui_win_content) 253 data_item_win_ptr->content)[0]->which_element.data; 254 if value 255 has changed (data_element_ptr, frame, &new_value) 256 { 257 data_element_ptr->value = new_value; 258 update the display with the new value, hiliting it. 259 } 260 #endif 261 } 262 } 263 } 264 265 266 /* Scroll the data window vertically forward or backward. */ 267 void 268 tui_vertical_data_scroll (enum tui_scroll_direction scroll_direction, 269 int num_to_scroll) 270 { 271 int first_element_no; 272 int first_line = (-1); 273 274 first_element_no = tui_first_data_item_displayed (); 275 if (first_element_no 276 < TUI_DATA_WIN->detail.data_display_info.regs_content_count) 277 first_line = tui_line_from_reg_element_no (first_element_no); 278 else 279 { /* Calculate the first line from the element number which is in 280 the general data content. */ 281 } 282 283 if (first_line >= 0) 284 { 285 if (scroll_direction == FORWARD_SCROLL) 286 first_line += num_to_scroll; 287 else 288 first_line -= num_to_scroll; 289 tui_erase_data_content ((char *) NULL); 290 tui_delete_data_content_windows (); 291 tui_display_data_from_line (first_line); 292 } 293 } 294 295 296 /***************************************** 297 ** STATIC LOCAL FUNCTIONS ** 298 ******************************************/ 299