1 /* Data/register window display.
2
3 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
4 Foundation, Inc.
5
6 Contributed by Hewlett-Packard Company.
7
8 This file is part of GDB.
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 #include "defs.h"
26 #include "tui/tui.h"
27 #include "tui/tui-data.h"
28 #include "tui/tui-wingeneral.h"
29 #include "tui/tui-regs.h"
30
31 #include "gdb_string.h"
32 #include "gdb_curses.h"
33
34
35 /*****************************************
36 ** STATIC LOCAL FUNCTIONS FORWARD DECLS **
37 ******************************************/
38
39
40
41 /*****************************************
42 ** PUBLIC FUNCTIONS **
43 ******************************************/
44
45
46 /* Answer the index first element displayed. If none are displayed,
47 then return (-1). */
48 int
tui_first_data_item_displayed(void)49 tui_first_data_item_displayed (void)
50 {
51 int element_no = (-1);
52 int i;
53
54 for (i = 0; (i < TUI_DATA_WIN->generic.content_size && element_no < 0); 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 && data_item_win->is_visible)
61 element_no = i;
62 }
63
64 return element_no;
65 }
66
67
68 /* Answer the index of the first element in line_no. If line_no is
69 past the data area (-1) is returned. */
70 int
tui_first_data_element_no_in_line(int line_no)71 tui_first_data_element_no_in_line (int line_no)
72 {
73 int first_element_no = (-1);
74
75 /*
76 ** First see if there is a register on line_no, and if so, set the
77 ** first element number
78 */
79 if ((first_element_no = tui_first_reg_element_no_inline (line_no)) == -1)
80 { /*
81 ** Looking at the general data, the 1st element on line_no
82 */
83 }
84
85 return first_element_no;
86 }
87
88
89 /* Function to delete all the item windows in the data window. This
90 is usually done when the data window is scrolled. */
91 void
tui_delete_data_content_windows(void)92 tui_delete_data_content_windows (void)
93 {
94 int i;
95 struct tui_gen_win_info * data_item_win_ptr;
96
97 for (i = 0; (i < TUI_DATA_WIN->generic.content_size); i++)
98 {
99 data_item_win_ptr = &((tui_win_content)
100 TUI_DATA_WIN->generic.content)[i]->which_element.data_window;
101 tui_delete_win (data_item_win_ptr->handle);
102 data_item_win_ptr->handle = (WINDOW *) NULL;
103 data_item_win_ptr->is_visible = FALSE;
104 }
105 }
106
107
108 void
tui_erase_data_content(char * prompt)109 tui_erase_data_content (char *prompt)
110 {
111 werase (TUI_DATA_WIN->generic.handle);
112 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
113 if (prompt != (char *) NULL)
114 {
115 int half_width = (TUI_DATA_WIN->generic.width - 2) / 2;
116 int x_pos;
117
118 if (strlen (prompt) >= half_width)
119 x_pos = 1;
120 else
121 x_pos = half_width - strlen (prompt);
122 mvwaddstr (TUI_DATA_WIN->generic.handle,
123 (TUI_DATA_WIN->generic.height / 2),
124 x_pos,
125 prompt);
126 }
127 wrefresh (TUI_DATA_WIN->generic.handle);
128 }
129
130
131 /* This function displays the data that is in the data window's
132 content. It does not set the content. */
133 void
tui_display_all_data(void)134 tui_display_all_data (void)
135 {
136 if (TUI_DATA_WIN->generic.content_size <= 0)
137 tui_erase_data_content (NO_DATA_STRING);
138 else
139 {
140 tui_erase_data_content ((char *) NULL);
141 tui_delete_data_content_windows ();
142 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
143 tui_display_registers_from (0);
144 /*
145 ** Then display the other data
146 */
147 if (TUI_DATA_WIN->detail.data_display_info.data_content !=
148 (tui_win_content) NULL &&
149 TUI_DATA_WIN->detail.data_display_info.data_content_count > 0)
150 {
151 }
152 }
153 }
154
155
156 /* Function to display the data starting at line, line_no, in the data
157 window. */
158 void
tui_display_data_from_line(int line_no)159 tui_display_data_from_line (int line_no)
160 {
161 int _line_no = line_no;
162
163 if (line_no < 0)
164 _line_no = 0;
165
166 tui_check_and_display_highlight_if_needed (TUI_DATA_WIN);
167
168 /* there is no general data, force regs to display (if there are any) */
169 if (TUI_DATA_WIN->detail.data_display_info.data_content_count <= 0)
170 tui_display_registers_from_line (_line_no, TRUE);
171 else
172 {
173 int element_no, start_line_no;
174 int regs_last_line = tui_last_regs_line_no ();
175
176
177 /* display regs if we can */
178 if (tui_display_registers_from_line (_line_no, FALSE) < 0)
179 { /*
180 ** _line_no is past the regs display, so calc where the
181 ** start data element is
182 */
183 if (regs_last_line < _line_no)
184 { /* figure out how many lines each element is to obtain
185 the start element_no */
186 }
187 }
188 else
189 { /*
190 ** calculate the starting element of the data display, given
191 ** regs_last_line and how many lines each element is, up to
192 ** _line_no
193 */
194 }
195 /* Now display the data , starting at element_no */
196 }
197 }
198
199
200 /* Display data starting at element element_no. */
201 void
tui_display_data_from(int element_no,int reuse_windows)202 tui_display_data_from (int element_no, int reuse_windows)
203 {
204 int first_line = (-1);
205
206 if (element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count)
207 first_line = tui_line_from_reg_element_no (element_no);
208 else
209 { /* calculate the first_line from the element number */
210 }
211
212 if (first_line >= 0)
213 {
214 tui_erase_data_content ((char *) NULL);
215 if (!reuse_windows)
216 tui_delete_data_content_windows ();
217 tui_display_data_from_line (first_line);
218 }
219 }
220
221
222 /* Function to redisplay the contents of the data window. */
223 void
tui_refresh_data_win(void)224 tui_refresh_data_win (void)
225 {
226 tui_erase_data_content ((char *) NULL);
227 if (TUI_DATA_WIN->generic.content_size > 0)
228 {
229 int first_element = tui_first_data_item_displayed ();
230
231 if (first_element >= 0) /* re-use existing windows */
232 tui_display_data_from (first_element, TRUE);
233 }
234 }
235
236
237 /* Function to check the data values and hilite any that have changed. */
238 void
tui_check_data_values(struct frame_info * frame)239 tui_check_data_values (struct frame_info *frame)
240 {
241 tui_check_register_values (frame);
242
243 /* Now check any other data values that there are */
244 if (TUI_DATA_WIN != NULL && TUI_DATA_WIN->generic.is_visible)
245 {
246 int i;
247
248 for (i = 0; TUI_DATA_WIN->detail.data_display_info.data_content_count; i++)
249 {
250 #ifdef LATER
251 tui_data_element_ptr data_element_ptr;
252 struct tui_gen_win_info * data_item_win_ptr;
253 Opaque new_value;
254
255 data_item_ptr = &TUI_DATA_WIN->detail.data_display_info.
256 data_content[i]->which_element.data_window;
257 data_element_ptr = &((tui_win_content)
258 data_item_win_ptr->content)[0]->which_element.data;
259 if value
260 has changed (data_element_ptr, frame, &new_value)
261 {
262 data_element_ptr->value = new_value;
263 update the display with the new value, hiliting it.
264 }
265 #endif
266 }
267 }
268 }
269
270
271 /* Scroll the data window vertically forward or backward. */
272 void
tui_vertical_data_scroll(enum tui_scroll_direction scroll_direction,int num_to_scroll)273 tui_vertical_data_scroll (enum tui_scroll_direction scroll_direction, int num_to_scroll)
274 {
275 int first_element_no;
276 int first_line = (-1);
277
278 first_element_no = tui_first_data_item_displayed ();
279 if (first_element_no < TUI_DATA_WIN->detail.data_display_info.regs_content_count)
280 first_line = tui_line_from_reg_element_no (first_element_no);
281 else
282 { /* calculate the first line from the element number which is in
283 ** the general data content
284 */
285 }
286
287 if (first_line >= 0)
288 {
289 int last_element_no, last_line;
290
291 if (scroll_direction == FORWARD_SCROLL)
292 first_line += num_to_scroll;
293 else
294 first_line -= num_to_scroll;
295 tui_erase_data_content ((char *) NULL);
296 tui_delete_data_content_windows ();
297 tui_display_data_from_line (first_line);
298 }
299 }
300
301
302 /*****************************************
303 ** STATIC LOCAL FUNCTIONS **
304 ******************************************/
305