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1/* TUI window generic functions.
2
3 Copyright (C) 1998-2004, 2006-2012 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/* This module contains procedures for handling tui window functions
23 like resize, scrolling, scrolling, changing focus, etc.
24
25 Author: Susan B. Macchia */
26
27#include "defs.h"
28#include "command.h"
29#include "symtab.h"
30#include "breakpoint.h"
31#include "frame.h"
32#include "cli/cli-cmds.h"
33#include "top.h"
34#include "source.h"
35
36#include "tui/tui.h"
37#include "tui/tui-data.h"
38#include "tui/tui-wingeneral.h"
39#include "tui/tui-stack.h"
40#include "tui/tui-regs.h"
41#include "tui/tui-disasm.h"
42#include "tui/tui-source.h"
43#include "tui/tui-winsource.h"
44#include "tui/tui-windata.h"
45#include "tui/tui-win.h"
46
47#include "gdb_curses.h"
48
49#include "gdb_string.h"
50#include <ctype.h>
51#include "readline/readline.h"
52
53#include <signal.h>
54
55/*******************************
56** Static Local Decls
57********************************/
58static void make_visible_with_new_height (struct tui_win_info *);
59static void make_invisible_and_set_new_height (struct tui_win_info *,
60 int);
61static enum tui_status tui_adjust_win_heights (struct tui_win_info *,
62 int);
63static int new_height_ok (struct tui_win_info *, int);
64static void tui_set_tab_width_command (char *, int);
65static void tui_refresh_all_command (char *, int);
66static void tui_set_win_height_command (char *, int);
67static void tui_xdb_set_win_height_command (char *, int);
68static void tui_all_windows_info (char *, int);
69static void tui_set_focus_command (char *, int);
70static void tui_scroll_forward_command (char *, int);
71static void tui_scroll_backward_command (char *, int);
72static void tui_scroll_left_command (char *, int);
73static void tui_scroll_right_command (char *, int);
74static void parse_scrolling_args (char *,
75 struct tui_win_info **,
76 int *);
77
78
79/***************************************
80** DEFINITIONS
81***************************************/
82#define WIN_HEIGHT_USAGE "Usage: winheight <win_name> [+ | -] <#lines>\n"
83#define XDBWIN_HEIGHT_USAGE "Usage: w <#lines>\n"
84#define FOCUS_USAGE "Usage: focus {<win> | next | prev}\n"
85
86/***************************************
87** PUBLIC FUNCTIONS
88***************************************/
89
90#ifndef ACS_LRCORNER
91# define ACS_LRCORNER '+'
92#endif
93#ifndef ACS_LLCORNER
94# define ACS_LLCORNER '+'
95#endif
96#ifndef ACS_ULCORNER
97# define ACS_ULCORNER '+'
98#endif
99#ifndef ACS_URCORNER
100# define ACS_URCORNER '+'
101#endif
102#ifndef ACS_HLINE
103# define ACS_HLINE '-'
104#endif
105#ifndef ACS_VLINE
106# define ACS_VLINE '|'
107#endif
108
109/* Possible values for tui-border-kind variable. */
110static const char *const tui_border_kind_enums[] = {
111 "space",
112 "ascii",
113 "acs",
114 NULL
115};
116
117/* Possible values for tui-border-mode and tui-active-border-mode. */
118static const char *const tui_border_mode_enums[] = {
119 "normal",
120 "standout",
121 "reverse",
122 "half",
123 "half-standout",
124 "bold",
125 "bold-standout",
126 NULL
127};
128
129struct tui_translate
130{
131 const char *name;
132 int value;
133};
134
135/* Translation table for border-mode variables.
136 The list of values must be terminated by a NULL.
137 After the NULL value, an entry defines the default. */
138struct tui_translate tui_border_mode_translate[] = {
139 { "normal", A_NORMAL },
140 { "standout", A_STANDOUT },
141 { "reverse", A_REVERSE },
142 { "half", A_DIM },
143 { "half-standout", A_DIM | A_STANDOUT },
144 { "bold", A_BOLD },
145 { "bold-standout", A_BOLD | A_STANDOUT },
146 { 0, 0 },
147 { "normal", A_NORMAL }
148};
149
150/* Translation tables for border-kind, one for each border
151 character (see wborder, border curses operations).
152 -1 is used to indicate the ACS because ACS characters
153 are determined at run time by curses (depends on terminal). */
154struct tui_translate tui_border_kind_translate_vline[] = {
155 { "space", ' ' },
156 { "ascii", '|' },
157 { "acs", -1 },
158 { 0, 0 },
159 { "ascii", '|' }
160};
161
162struct tui_translate tui_border_kind_translate_hline[] = {
163 { "space", ' ' },
164 { "ascii", '-' },
165 { "acs", -1 },
166 { 0, 0 },
167 { "ascii", '-' }
168};
169
170struct tui_translate tui_border_kind_translate_ulcorner[] = {
171 { "space", ' ' },
172 { "ascii", '+' },
173 { "acs", -1 },
174 { 0, 0 },
175 { "ascii", '+' }
176};
177
178struct tui_translate tui_border_kind_translate_urcorner[] = {
179 { "space", ' ' },
180 { "ascii", '+' },
181 { "acs", -1 },
182 { 0, 0 },
183 { "ascii", '+' }
184};
185
186struct tui_translate tui_border_kind_translate_llcorner[] = {
187 { "space", ' ' },
188 { "ascii", '+' },
189 { "acs", -1 },
190 { 0, 0 },
191 { "ascii", '+' }
192};
193
194struct tui_translate tui_border_kind_translate_lrcorner[] = {
195 { "space", ' ' },
196 { "ascii", '+' },
197 { "acs", -1 },
198 { 0, 0 },
199 { "ascii", '+' }
200};
201
202
203/* Tui configuration variables controlled with set/show command. */
204const char *tui_active_border_mode = "bold-standout";
205static void
206show_tui_active_border_mode (struct ui_file *file,
207 int from_tty,
208 struct cmd_list_element *c,
209 const char *value)
210{
211 fprintf_filtered (file, _("\
212The attribute mode to use for the active TUI window border is \"%s\".\n"),
213 value);
214}
215
216const char *tui_border_mode = "normal";
217static void
218show_tui_border_mode (struct ui_file *file,
219 int from_tty,
220 struct cmd_list_element *c,
221 const char *value)
222{
223 fprintf_filtered (file, _("\
224The attribute mode to use for the TUI window borders is \"%s\".\n"),
225 value);
226}
227
228const char *tui_border_kind = "acs";
229static void
230show_tui_border_kind (struct ui_file *file,
231 int from_tty,
232 struct cmd_list_element *c,
233 const char *value)
234{
235 fprintf_filtered (file, _("The kind of border for TUI windows is \"%s\".\n"),
236 value);
237}
238
239
240/* Tui internal configuration variables. These variables are updated
241 by tui_update_variables to reflect the tui configuration
242 variables. */
243chtype tui_border_vline;
244chtype tui_border_hline;
245chtype tui_border_ulcorner;
246chtype tui_border_urcorner;
247chtype tui_border_llcorner;
248chtype tui_border_lrcorner;
249
250int tui_border_attrs;
251int tui_active_border_attrs;
252
253/* Identify the item in the translation table.
254 When the item is not recognized, use the default entry. */
255static struct tui_translate *
256translate (const char *name, struct tui_translate *table)
257{
258 while (table->name)
259 {
260 if (name && strcmp (table->name, name) == 0)
261 return table;
262 table++;
263 }
264
265 /* Not found, return default entry. */
266 table++;
267 return table;
268}
269
270/* Update the tui internal configuration according to gdb settings.
271 Returns 1 if the configuration has changed and the screen should
272 be redrawn. */
273int
274tui_update_variables (void)
275{
276 int need_redraw = 0;
277 struct tui_translate *entry;
278
279 entry = translate (tui_border_mode, tui_border_mode_translate);
280 if (tui_border_attrs != entry->value)
281 {
282 tui_border_attrs = entry->value;
283 need_redraw = 1;
284 }
285 entry = translate (tui_active_border_mode, tui_border_mode_translate);
286 if (tui_active_border_attrs != entry->value)
287 {
288 tui_active_border_attrs = entry->value;
289 need_redraw = 1;
290 }
291
292 /* If one corner changes, all characters are changed.
293 Only check the first one. The ACS characters are determined at
294 run time by curses terminal management. */
295 entry = translate (tui_border_kind, tui_border_kind_translate_lrcorner);
296 if (tui_border_lrcorner != (chtype) entry->value)
297 {
298 tui_border_lrcorner = (entry->value < 0) ? ACS_LRCORNER : entry->value;
299 need_redraw = 1;
300 }
301 entry = translate (tui_border_kind, tui_border_kind_translate_llcorner);
302 tui_border_llcorner = (entry->value < 0) ? ACS_LLCORNER : entry->value;
303
304 entry = translate (tui_border_kind, tui_border_kind_translate_ulcorner);
305 tui_border_ulcorner = (entry->value < 0) ? ACS_ULCORNER : entry->value;
306
307 entry = translate (tui_border_kind, tui_border_kind_translate_urcorner);
308 tui_border_urcorner = (entry->value < 0) ? ACS_URCORNER : entry->value;
309
310 entry = translate (tui_border_kind, tui_border_kind_translate_hline);
311 tui_border_hline = (entry->value < 0) ? ACS_HLINE : entry->value;
312
313 entry = translate (tui_border_kind, tui_border_kind_translate_vline);
314 tui_border_vline = (entry->value < 0) ? ACS_VLINE : entry->value;
315
316 return need_redraw;
317}
318
319static void
320set_tui_cmd (char *args, int from_tty)
321{
322}
323
324static void
325show_tui_cmd (char *args, int from_tty)
326{
327}
328
329static struct cmd_list_element *tuilist;
330
331static void
332tui_command (char *args, int from_tty)
333{
334 printf_unfiltered (_("\"tui\" must be followed by the name of a "
335 "tui command.\n"));
336 help_list (tuilist, "tui ", -1, gdb_stdout);
337}
338
339struct cmd_list_element **
340tui_get_cmd_list (void)
341{
342 if (tuilist == 0)
343 add_prefix_cmd ("tui", class_tui, tui_command,
344 _("Text User Interface commands."),
345 &tuilist, "tui ", 0, &cmdlist);
346 return &tuilist;
347}
348
349/* Function to initialize gdb commands, for tui window
350 manipulation. */
351
352/* Provide a prototype to silence -Wmissing-prototypes. */
353extern initialize_file_ftype _initialize_tui_win;
354
355void
356_initialize_tui_win (void)
357{
358 static struct cmd_list_element *tui_setlist;
359 static struct cmd_list_element *tui_showlist;
360
361 /* Define the classes of commands.
362 They will appear in the help list in the reverse of this order. */
363 add_prefix_cmd ("tui", class_tui, set_tui_cmd,
364 _("TUI configuration variables"),
365 &tui_setlist, "set tui ",
366 0 /* allow-unknown */, &setlist);
367 add_prefix_cmd ("tui", class_tui, show_tui_cmd,
368 _("TUI configuration variables"),
369 &tui_showlist, "show tui ",
370 0 /* allow-unknown */, &showlist);
371
372 add_com ("refresh", class_tui, tui_refresh_all_command,
373 _("Refresh the terminal display.\n"));
374 if (xdb_commands)
375 add_com_alias ("U", "refresh", class_tui, 0);
376 add_com ("tabset", class_tui, tui_set_tab_width_command, _("\
377Set the width (in characters) of tab stops.\n\
378Usage: tabset <n>\n"));
379 add_com ("winheight", class_tui, tui_set_win_height_command, _("\
380Set the height of a specified window.\n\
381Usage: winheight <win_name> [+ | -] <#lines>\n\
382Window names are:\n\
383src : the source window\n\
384cmd : the command window\n\
385asm : the disassembly window\n\
386regs : the register display\n"));
387 add_com_alias ("wh", "winheight", class_tui, 0);
388 add_info ("win", tui_all_windows_info,
389 _("List of all displayed windows.\n"));
390 add_com ("focus", class_tui, tui_set_focus_command, _("\
391Set focus to named window or next/prev window.\n\
392Usage: focus {<win> | next | prev}\n\
393Valid Window names are:\n\
394src : the source window\n\
395asm : the disassembly window\n\
396regs : the register display\n\
397cmd : the command window\n"));
398 add_com_alias ("fs", "focus", class_tui, 0);
399 add_com ("+", class_tui, tui_scroll_forward_command, _("\
400Scroll window forward.\n\
401Usage: + [win] [n]\n"));
402 add_com ("-", class_tui, tui_scroll_backward_command, _("\
403Scroll window backward.\n\
404Usage: - [win] [n]\n"));
405 add_com ("<", class_tui, tui_scroll_left_command, _("\
406Scroll window forward.\n\
407Usage: < [win] [n]\n"));
408 add_com (">", class_tui, tui_scroll_right_command, _("\
409Scroll window backward.\n\
410Usage: > [win] [n]\n"));
411 if (xdb_commands)
412 add_com ("w", class_xdb, tui_xdb_set_win_height_command, _("\
413XDB compatibility command for setting the height of a command window.\n\
414Usage: w <#lines>\n"));
415
416 /* Define the tui control variables. */
417 add_setshow_enum_cmd ("border-kind", no_class, tui_border_kind_enums,
418 &tui_border_kind, _("\
419Set the kind of border for TUI windows."), _("\
420Show the kind of border for TUI windows."), _("\
421This variable controls the border of TUI windows:\n\
422space use a white space\n\
423ascii use ascii characters + - | for the border\n\
424acs use the Alternate Character Set"),
425 NULL,
426 show_tui_border_kind,
427 &tui_setlist, &tui_showlist);
428
429 add_setshow_enum_cmd ("border-mode", no_class, tui_border_mode_enums,
430 &tui_border_mode, _("\
431Set the attribute mode to use for the TUI window borders."), _("\
432Show the attribute mode to use for the TUI window borders."), _("\
433This variable controls the attributes to use for the window borders:\n\
434normal normal display\n\
435standout use highlight mode of terminal\n\
436reverse use reverse video mode\n\
437half use half bright\n\
438half-standout use half bright and standout mode\n\
439bold use extra bright or bold\n\
440bold-standout use extra bright or bold with standout mode"),
441 NULL,
442 show_tui_border_mode,
443 &tui_setlist, &tui_showlist);
444
445 add_setshow_enum_cmd ("active-border-mode", no_class, tui_border_mode_enums,
446 &tui_active_border_mode, _("\
447Set the attribute mode to use for the active TUI window border."), _("\
448Show the attribute mode to use for the active TUI window border."), _("\
449This variable controls the attributes to use for the active window border:\n\
450normal normal display\n\
451standout use highlight mode of terminal\n\
452reverse use reverse video mode\n\
453half use half bright\n\
454half-standout use half bright and standout mode\n\
455bold use extra bright or bold\n\
456bold-standout use extra bright or bold with standout mode"),
457 NULL,
458 show_tui_active_border_mode,
459 &tui_setlist, &tui_showlist);
460}
461
462/* Update gdb's knowledge of the terminal size. */
463void
464tui_update_gdb_sizes (void)
465{
466 char cmd[50];
467
468 /* Set to TUI command window dimension or use readline values. */
469 sprintf (cmd, "set width %d",
470 tui_active ? TUI_CMD_WIN->generic.width : tui_term_width());
471 execute_command (cmd, 0);
472 sprintf (cmd, "set height %d",
473 tui_active ? TUI_CMD_WIN->generic.height : tui_term_height());
474 execute_command (cmd, 0);
475}
476
477
478/* Set the logical focus to win_info. */
479void
480tui_set_win_focus_to (struct tui_win_info *win_info)
481{
482 if (win_info != NULL)
483 {
484 struct tui_win_info *win_with_focus = tui_win_with_focus ();
485
486 if (win_with_focus != NULL
487 && win_with_focus->generic.type != CMD_WIN)
488 tui_unhighlight_win (win_with_focus);
489 tui_set_win_with_focus (win_info);
490 if (win_info->generic.type != CMD_WIN)
491 tui_highlight_win (win_info);
492 }
493}
494
495
496void
497tui_scroll_forward (struct tui_win_info *win_to_scroll,
498 int num_to_scroll)
499{
500 if (win_to_scroll != TUI_CMD_WIN)
501 {
502 int _num_to_scroll = num_to_scroll;
503
504 if (num_to_scroll == 0)
505 _num_to_scroll = win_to_scroll->generic.height - 3;
506
507 /* If we are scrolling the source or disassembly window, do a
508 "psuedo" scroll since not all of the source is in memory,
509 only what is in the viewport. If win_to_scroll is the
510 command window do nothing since the term should handle
511 it. */
512 if (win_to_scroll == TUI_SRC_WIN)
513 tui_vertical_source_scroll (FORWARD_SCROLL, _num_to_scroll);
514 else if (win_to_scroll == TUI_DISASM_WIN)
515 tui_vertical_disassem_scroll (FORWARD_SCROLL, _num_to_scroll);
516 else if (win_to_scroll == TUI_DATA_WIN)
517 tui_vertical_data_scroll (FORWARD_SCROLL, _num_to_scroll);
518 }
519}
520
521void
522tui_scroll_backward (struct tui_win_info *win_to_scroll,
523 int num_to_scroll)
524{
525 if (win_to_scroll != TUI_CMD_WIN)
526 {
527 int _num_to_scroll = num_to_scroll;
528
529 if (num_to_scroll == 0)
530 _num_to_scroll = win_to_scroll->generic.height - 3;
531
532 /* If we are scrolling the source or disassembly window, do a
533 "psuedo" scroll since not all of the source is in memory,
534 only what is in the viewport. If win_to_scroll is the
535 command window do nothing since the term should handle
536 it. */
537 if (win_to_scroll == TUI_SRC_WIN)
538 tui_vertical_source_scroll (BACKWARD_SCROLL, _num_to_scroll);
539 else if (win_to_scroll == TUI_DISASM_WIN)
540 tui_vertical_disassem_scroll (BACKWARD_SCROLL, _num_to_scroll);
541 else if (win_to_scroll == TUI_DATA_WIN)
542 tui_vertical_data_scroll (BACKWARD_SCROLL, _num_to_scroll);
543 }
544}
545
546
547void
548tui_scroll_left (struct tui_win_info *win_to_scroll,
549 int num_to_scroll)
550{
551 if (win_to_scroll != TUI_CMD_WIN)
552 {
553 int _num_to_scroll = num_to_scroll;
554
555 if (_num_to_scroll == 0)
556 _num_to_scroll = 1;
557
558 /* If we are scrolling the source or disassembly window, do a
559 "psuedo" scroll since not all of the source is in memory,
560 only what is in the viewport. If win_to_scroll is the command
561 window do nothing since the term should handle it. */
562 if (win_to_scroll == TUI_SRC_WIN
563 || win_to_scroll == TUI_DISASM_WIN)
564 tui_horizontal_source_scroll (win_to_scroll, LEFT_SCROLL,
565 _num_to_scroll);
566 }
567}
568
569
570void
571tui_scroll_right (struct tui_win_info *win_to_scroll,
572 int num_to_scroll)
573{
574 if (win_to_scroll != TUI_CMD_WIN)
575 {
576 int _num_to_scroll = num_to_scroll;
577
578 if (_num_to_scroll == 0)
579 _num_to_scroll = 1;
580
581 /* If we are scrolling the source or disassembly window, do a
582 "psuedo" scroll since not all of the source is in memory,
583 only what is in the viewport. If win_to_scroll is the command
584 window do nothing since the term should handle it. */
585 if (win_to_scroll == TUI_SRC_WIN
586 || win_to_scroll == TUI_DISASM_WIN)
587 tui_horizontal_source_scroll (win_to_scroll, RIGHT_SCROLL,
588 _num_to_scroll);
589 }
590}
591
592
593/* Scroll a window. Arguments are passed through a va_list. */
594void
595tui_scroll (enum tui_scroll_direction direction,
596 struct tui_win_info *win_to_scroll,
597 int num_to_scroll)
598{
599 switch (direction)
600 {
601 case FORWARD_SCROLL:
602 tui_scroll_forward (win_to_scroll, num_to_scroll);
603 break;
604 case BACKWARD_SCROLL:
605 tui_scroll_backward (win_to_scroll, num_to_scroll);
606 break;
607 case LEFT_SCROLL:
608 tui_scroll_left (win_to_scroll, num_to_scroll);
609 break;
610 case RIGHT_SCROLL:
611 tui_scroll_right (win_to_scroll, num_to_scroll);
612 break;
613 default:
614 break;
615 }
616}
617
618
619void
620tui_refresh_all_win (void)
621{
622 enum tui_win_type type;
623
624 clearok (curscr, TRUE);
625 tui_refresh_all (tui_win_list);
626 for (type = SRC_WIN; type < MAX_MAJOR_WINDOWS; type++)
627 {
628 if (tui_win_list[type]
629 && tui_win_list[type]->generic.is_visible)
630 {
631 switch (type)
632 {
633 case SRC_WIN:
634 case DISASSEM_WIN:
635 tui_show_source_content (tui_win_list[type]);
636 tui_check_and_display_highlight_if_needed (tui_win_list[type]);
637 tui_erase_exec_info_content (tui_win_list[type]);
638 tui_update_exec_info (tui_win_list[type]);
639 break;
640 case DATA_WIN:
641 tui_refresh_data_win ();
642 break;
643 default:
644 break;
645 }
646 }
647 }
648 tui_show_locator_content ();
649}
650
651
652/* Resize all the windows based on the terminal size. This function
653 gets called from within the readline sinwinch handler. */
654void
655tui_resize_all (void)
656{
657 int height_diff, width_diff;
658 int screenheight, screenwidth;
659
660 rl_get_screen_size (&screenheight, &screenwidth);
661 width_diff = screenwidth - tui_term_width ();
662 height_diff = screenheight - tui_term_height ();
663 if (height_diff || width_diff)
664 {
665 enum tui_layout_type cur_layout = tui_current_layout ();
666 struct tui_win_info *win_with_focus = tui_win_with_focus ();
667 struct tui_win_info *first_win;
668 struct tui_win_info *second_win;
669 struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
670 enum tui_win_type win_type;
671 int new_height, split_diff, cmd_split_diff, num_wins_displayed = 2;
672
673#ifdef HAVE_RESIZE_TERM
674 resize_term (screenheight, screenwidth);
675#endif
676 /* Turn keypad off while we resize. */
677 if (win_with_focus != TUI_CMD_WIN)
678 keypad (TUI_CMD_WIN->generic.handle, FALSE);
679 tui_update_gdb_sizes ();
680 tui_set_term_height_to (screenheight);
681 tui_set_term_width_to (screenwidth);
682 if (cur_layout == SRC_DISASSEM_COMMAND
683 || cur_layout == SRC_DATA_COMMAND
684 || cur_layout == DISASSEM_DATA_COMMAND)
685 num_wins_displayed++;
686 split_diff = height_diff / num_wins_displayed;
687 cmd_split_diff = split_diff;
688 if (height_diff % num_wins_displayed)
689 {
690 if (height_diff < 0)
691 cmd_split_diff--;
692 else
693 cmd_split_diff++;
694 }
695 /* Now adjust each window. */
696 clear ();
697 refresh ();
698 switch (cur_layout)
699 {
700 case SRC_COMMAND:
701 case DISASSEM_COMMAND:
702 first_win = (struct tui_win_info *) (tui_source_windows ())->list[0];
703 first_win->generic.width += width_diff;
704 locator->width += width_diff;
705 /* Check for invalid heights. */
706 if (height_diff == 0)
707 new_height = first_win->generic.height;
708 else if ((first_win->generic.height + split_diff) >=
709 (screenheight - MIN_CMD_WIN_HEIGHT - 1))
710 new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1;
711 else if ((first_win->generic.height + split_diff) <= 0)
712 new_height = MIN_WIN_HEIGHT;
713 else
714 new_height = first_win->generic.height + split_diff;
715
716 locator->origin.y = new_height + 1;
717 make_invisible_and_set_new_height (first_win, new_height);
718 TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
719 TUI_CMD_WIN->generic.width += width_diff;
720 new_height = screenheight - TUI_CMD_WIN->generic.origin.y;
721 make_invisible_and_set_new_height (TUI_CMD_WIN, new_height);
722 make_visible_with_new_height (first_win);
723 make_visible_with_new_height (TUI_CMD_WIN);
724 if (first_win->generic.content_size <= 0)
725 tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
726 break;
727 default:
728 if (cur_layout == SRC_DISASSEM_COMMAND)
729 {
730 first_win = TUI_SRC_WIN;
731 first_win->generic.width += width_diff;
732 second_win = TUI_DISASM_WIN;
733 second_win->generic.width += width_diff;
734 }
735 else
736 {
737 first_win = TUI_DATA_WIN;
738 first_win->generic.width += width_diff;
739 second_win = (struct tui_win_info *)
740 (tui_source_windows ())->list[0];
741 second_win->generic.width += width_diff;
742 }
743 /* Change the first window's height/width. */
744 /* Check for invalid heights. */
745 if (height_diff == 0)
746 new_height = first_win->generic.height;
747 else if ((first_win->generic.height +
748 second_win->generic.height + (split_diff * 2)) >=
749 (screenheight - MIN_CMD_WIN_HEIGHT - 1))
750 new_height = (screenheight - MIN_CMD_WIN_HEIGHT - 1) / 2;
751 else if ((first_win->generic.height + split_diff) <= 0)
752 new_height = MIN_WIN_HEIGHT;
753 else
754 new_height = first_win->generic.height + split_diff;
755 make_invisible_and_set_new_height (first_win, new_height);
756
757 locator->width += width_diff;
758
759 /* Change the second window's height/width. */
760 /* Check for invalid heights. */
761 if (height_diff == 0)
762 new_height = second_win->generic.height;
763 else if ((first_win->generic.height +
764 second_win->generic.height + (split_diff * 2)) >=
765 (screenheight - MIN_CMD_WIN_HEIGHT - 1))
766 {
767 new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1;
768 if (new_height % 2)
769 new_height = (new_height / 2) + 1;
770 else
771 new_height /= 2;
772 }
773 else if ((second_win->generic.height + split_diff) <= 0)
774 new_height = MIN_WIN_HEIGHT;
775 else
776 new_height = second_win->generic.height + split_diff;
777 second_win->generic.origin.y = first_win->generic.height - 1;
778 make_invisible_and_set_new_height (second_win, new_height);
779
780 /* Change the command window's height/width. */
781 TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
782 make_invisible_and_set_new_height (TUI_CMD_WIN,
783 TUI_CMD_WIN->generic.height
784 + cmd_split_diff);
785 make_visible_with_new_height (first_win);
786 make_visible_with_new_height (second_win);
787 make_visible_with_new_height (TUI_CMD_WIN);
788 if (first_win->generic.content_size <= 0)
789 tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
790 if (second_win->generic.content_size <= 0)
791 tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT);
792 break;
793 }
794 /* Now remove all invisible windows, and their content so that
795 they get created again when called for with the new size. */
796 for (win_type = SRC_WIN; (win_type < MAX_MAJOR_WINDOWS); win_type++)
797 {
798 if (win_type != CMD_WIN
799 && (tui_win_list[win_type] != NULL)
800 && !tui_win_list[win_type]->generic.is_visible)
801 {
802 tui_free_window (tui_win_list[win_type]);
803 tui_win_list[win_type] = (struct tui_win_info *) NULL;
804 }
805 }
806 /* Turn keypad back on, unless focus is in the command
807 window. */
808 if (win_with_focus != TUI_CMD_WIN)
809 keypad (TUI_CMD_WIN->generic.handle, TRUE);
810 }
811}
812
813#ifdef SIGWINCH
814/* SIGWINCH signal handler for the tui. This signal handler is always
815 called, even when the readline package clears signals because it is
816 set as the old_sigwinch() (TUI only). */
817static void
818tui_sigwinch_handler (int signal)
819{
820 /* Say that a resize was done so that the readline can do it later
821 when appropriate. */
822 tui_set_win_resized_to (TRUE);
823}
824#endif
825
826/* Initializes SIGWINCH signal handler for the tui. */
827void
828tui_initialize_win (void)
829{
830#ifdef SIGWINCH
831#ifdef HAVE_SIGACTION
832 struct sigaction old_winch;
833
834 memset (&old_winch, 0, sizeof (old_winch));
835 old_winch.sa_handler = &tui_sigwinch_handler;
836 sigaction (SIGWINCH, &old_winch, NULL);
837#else
838 signal (SIGWINCH, &tui_sigwinch_handler);
839#endif
840#endif
841}
842
843
844/*************************
845** STATIC LOCAL FUNCTIONS
846**************************/
847
848
849static void
850tui_scroll_forward_command (char *arg, int from_tty)
851{
852 int num_to_scroll = 1;
853 struct tui_win_info *win_to_scroll;
854
855 /* Make sure the curses mode is enabled. */
856 tui_enable ();
857 if (arg == (char *) NULL)
858 parse_scrolling_args (arg, &win_to_scroll, (int *) NULL);
859 else
860 parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
861 tui_scroll (FORWARD_SCROLL, win_to_scroll, num_to_scroll);
862}
863
864
865static void
866tui_scroll_backward_command (char *arg, int from_tty)
867{
868 int num_to_scroll = 1;
869 struct tui_win_info *win_to_scroll;
870
871 /* Make sure the curses mode is enabled. */
872 tui_enable ();
873 if (arg == (char *) NULL)
874 parse_scrolling_args (arg, &win_to_scroll, (int *) NULL);
875 else
876 parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
877 tui_scroll (BACKWARD_SCROLL, win_to_scroll, num_to_scroll);
878}
879
880
881static void
882tui_scroll_left_command (char *arg, int from_tty)
883{
884 int num_to_scroll;
885 struct tui_win_info *win_to_scroll;
886
887 /* Make sure the curses mode is enabled. */
888 tui_enable ();
889 parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
890 tui_scroll (LEFT_SCROLL, win_to_scroll, num_to_scroll);
891}
892
893
894static void
895tui_scroll_right_command (char *arg, int from_tty)
896{
897 int num_to_scroll;
898 struct tui_win_info *win_to_scroll;
899
900 /* Make sure the curses mode is enabled. */
901 tui_enable ();
902 parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll);
903 tui_scroll (RIGHT_SCROLL, win_to_scroll, num_to_scroll);
904}
905
906
907/* Set focus to the window named by 'arg'. */
908static void
909tui_set_focus (char *arg, int from_tty)
910{
911 if (arg != (char *) NULL)
912 {
913 char *buf_ptr = (char *) xstrdup (arg);
914 int i;
915 struct tui_win_info *win_info = (struct tui_win_info *) NULL;
916
917 for (i = 0; (i < strlen (buf_ptr)); i++)
918 buf_ptr[i] = toupper (arg[i]);
919
920 if (subset_compare (buf_ptr, "NEXT"))
921 win_info = tui_next_win (tui_win_with_focus ());
922 else if (subset_compare (buf_ptr, "PREV"))
923 win_info = tui_prev_win (tui_win_with_focus ());
924 else
925 win_info = tui_partial_win_by_name (buf_ptr);
926
927 if (win_info == (struct tui_win_info *) NULL
928 || !win_info->generic.is_visible)
929 warning (_("Invalid window specified. \n\
930The window name specified must be valid and visible.\n"));
931 else
932 {
933 tui_set_win_focus_to (win_info);
934 keypad (TUI_CMD_WIN->generic.handle, (win_info != TUI_CMD_WIN));
935 }
936
937 if (TUI_DATA_WIN && TUI_DATA_WIN->generic.is_visible)
938 tui_refresh_data_win ();
939 xfree (buf_ptr);
940 printf_filtered (_("Focus set to %s window.\n"),
941 tui_win_name ((struct tui_gen_win_info *)
942 tui_win_with_focus ()));
943 }
944 else
945 warning (_("Incorrect Number of Arguments.\n%s"), FOCUS_USAGE);
946}
947
948static void
949tui_set_focus_command (char *arg, int from_tty)
950{
951 /* Make sure the curses mode is enabled. */
952 tui_enable ();
953 tui_set_focus (arg, from_tty);
954}
955
956
957static void
958tui_all_windows_info (char *arg, int from_tty)
959{
960 enum tui_win_type type;
961 struct tui_win_info *win_with_focus = tui_win_with_focus ();
962
963 for (type = SRC_WIN; (type < MAX_MAJOR_WINDOWS); type++)
964 if (tui_win_list[type]
965 && tui_win_list[type]->generic.is_visible)
966 {
967 if (win_with_focus == tui_win_list[type])
968 printf_filtered (" %s\t(%d lines) <has focus>\n",
969 tui_win_name (&tui_win_list[type]->generic),
970 tui_win_list[type]->generic.height);
971 else
972 printf_filtered (" %s\t(%d lines)\n",
973 tui_win_name (&tui_win_list[type]->generic),
974 tui_win_list[type]->generic.height);
975 }
976}
977
978
979static void
980tui_refresh_all_command (char *arg, int from_tty)
981{
982 /* Make sure the curses mode is enabled. */
983 tui_enable ();
984
985 tui_refresh_all_win ();
986}
987
988
989/* Set the height of the specified window. */
990static void
991tui_set_tab_width_command (char *arg, int from_tty)
992{
993 /* Make sure the curses mode is enabled. */
994 tui_enable ();
995 if (arg != (char *) NULL)
996 {
997 int ts;
998
999 ts = atoi (arg);
1000 if (ts > 0)
1001 tui_set_default_tab_len (ts);
1002 else
1003 warning (_("Tab widths greater than 0 must be specified."));
1004 }
1005}
1006
1007
1008/* Set the height of the specified window. */
1009static void
1010tui_set_win_height (char *arg, int from_tty)
1011{
1012 /* Make sure the curses mode is enabled. */
1013 tui_enable ();
1014 if (arg != (char *) NULL)
1015 {
1016 char *buf = xstrdup (arg);
1017 char *buf_ptr = buf;
1018 char *wname = (char *) NULL;
1019 int new_height, i;
1020 struct tui_win_info *win_info;
1021
1022 wname = buf_ptr;
1023 buf_ptr = strchr (buf_ptr, ' ');
1024 if (buf_ptr != (char *) NULL)
1025 {
1026 *buf_ptr = (char) 0;
1027
1028 /* Validate the window name. */
1029 for (i = 0; i < strlen (wname); i++)
1030 wname[i] = toupper (wname[i]);
1031 win_info = tui_partial_win_by_name (wname);
1032
1033 if (win_info == (struct tui_win_info *) NULL
1034 || !win_info->generic.is_visible)
1035 warning (_("Invalid window specified. \n\
1036The window name specified must be valid and visible.\n"));
1037 else
1038 {
1039 /* Process the size. */
1040 while (*(++buf_ptr) == ' ')
1041 ;
1042
1043 if (*buf_ptr != (char) 0)
1044 {
1045 int negate = FALSE;
1046 int fixed_size = TRUE;
1047 int input_no;;
1048
1049 if (*buf_ptr == '+' || *buf_ptr == '-')
1050 {
1051 if (*buf_ptr == '-')
1052 negate = TRUE;
1053 fixed_size = FALSE;
1054 buf_ptr++;
1055 }
1056 input_no = atoi (buf_ptr);
1057 if (input_no > 0)
1058 {
1059 if (negate)
1060 input_no *= (-1);
1061 if (fixed_size)
1062 new_height = input_no;
1063 else
1064 new_height = win_info->generic.height + input_no;
1065
1066 /* Now change the window's height, and adjust
1067 all other windows around it. */
1068 if (tui_adjust_win_heights (win_info,
1069 new_height) == TUI_FAILURE)
1070 warning (_("Invalid window height specified.\n%s"),
1071 WIN_HEIGHT_USAGE);
1072 else
1073 tui_update_gdb_sizes ();
1074 }
1075 else
1076 warning (_("Invalid window height specified.\n%s"),
1077 WIN_HEIGHT_USAGE);
1078 }
1079 }
1080 }
1081 else
1082 printf_filtered (WIN_HEIGHT_USAGE);
1083
1084 if (buf != (char *) NULL)
1085 xfree (buf);
1086 }
1087 else
1088 printf_filtered (WIN_HEIGHT_USAGE);
1089}
1090
1091/* Set the height of the specified window, with va_list. */
1092static void
1093tui_set_win_height_command (char *arg, int from_tty)
1094{
1095 /* Make sure the curses mode is enabled. */
1096 tui_enable ();
1097 tui_set_win_height (arg, from_tty);
1098}
1099
1100
1101/* XDB Compatibility command for setting the window height. This will
1102 increase or decrease the command window by the specified
1103 amount. */
1104static void
1105tui_xdb_set_win_height (char *arg, int from_tty)
1106{
1107 /* Make sure the curses mode is enabled. */
1108 tui_enable ();
1109 if (arg != (char *) NULL)
1110 {
1111 int input_no = atoi (arg);
1112
1113 if (input_no > 0)
1114 { /* Add 1 for the locator. */
1115 int new_height = tui_term_height () - (input_no + 1);
1116
1117 if (!new_height_ok (tui_win_list[CMD_WIN], new_height)
1118 || tui_adjust_win_heights (tui_win_list[CMD_WIN],
1119 new_height) == TUI_FAILURE)
1120 warning (_("Invalid window height specified.\n%s"),
1121 XDBWIN_HEIGHT_USAGE);
1122 }
1123 else
1124 warning (_("Invalid window height specified.\n%s"),
1125 XDBWIN_HEIGHT_USAGE);
1126 }
1127 else
1128 warning (_("Invalid window height specified.\n%s"), XDBWIN_HEIGHT_USAGE);
1129}
1130
1131/* Set the height of the specified window, with va_list. */
1132static void
1133tui_xdb_set_win_height_command (char *arg, int from_tty)
1134{
1135 tui_xdb_set_win_height (arg, from_tty);
1136}
1137
1138
1139/* Function to adjust all window heights around the primary. */
1140static enum tui_status
1141tui_adjust_win_heights (struct tui_win_info *primary_win_info,
1142 int new_height)
1143{
1144 enum tui_status status = TUI_FAILURE;
1145
1146 if (new_height_ok (primary_win_info, new_height))
1147 {
1148 status = TUI_SUCCESS;
1149 if (new_height != primary_win_info->generic.height)
1150 {
1151 int diff;
1152 struct tui_win_info *win_info;
1153 struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
1154 enum tui_layout_type cur_layout = tui_current_layout ();
1155
1156 diff = (new_height - primary_win_info->generic.height) * (-1);
1157 if (cur_layout == SRC_COMMAND
1158 || cur_layout == DISASSEM_COMMAND)
1159 {
1160 struct tui_win_info *src_win_info;
1161
1162 make_invisible_and_set_new_height (primary_win_info, new_height);
1163 if (primary_win_info->generic.type == CMD_WIN)
1164 {
1165 win_info = (tui_source_windows ())->list[0];
1166 src_win_info = win_info;
1167 }
1168 else
1169 {
1170 win_info = tui_win_list[CMD_WIN];
1171 src_win_info = primary_win_info;
1172 }
1173 make_invisible_and_set_new_height (win_info,
1174 win_info->generic.height + diff);
1175 TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
1176 make_visible_with_new_height (win_info);
1177 make_visible_with_new_height (primary_win_info);
1178 if (src_win_info->generic.content_size <= 0)
1179 tui_erase_source_content (src_win_info, EMPTY_SOURCE_PROMPT);
1180 }
1181 else
1182 {
1183 struct tui_win_info *first_win;
1184 struct tui_win_info *second_win;
1185
1186 if (cur_layout == SRC_DISASSEM_COMMAND)
1187 {
1188 first_win = TUI_SRC_WIN;
1189 second_win = TUI_DISASM_WIN;
1190 }
1191 else
1192 {
1193 first_win = TUI_DATA_WIN;
1194 second_win = (tui_source_windows ())->list[0];
1195 }
1196 if (primary_win_info == TUI_CMD_WIN)
1197 { /* Split the change in height accross the 1st & 2nd
1198 windows, adjusting them as well. */
1199 /* Subtract the locator. */
1200 int first_split_diff = diff / 2;
1201 int second_split_diff = first_split_diff;
1202
1203 if (diff % 2)
1204 {
1205 if (first_win->generic.height >
1206 second_win->generic.height)
1207 if (diff < 0)
1208 first_split_diff--;
1209 else
1210 first_split_diff++;
1211 else
1212 {
1213 if (diff < 0)
1214 second_split_diff--;
1215 else
1216 second_split_diff++;
1217 }
1218 }
1219 /* Make sure that the minimum hieghts are
1220 honored. */
1221 while ((first_win->generic.height + first_split_diff) < 3)
1222 {
1223 first_split_diff++;
1224 second_split_diff--;
1225 }
1226 while ((second_win->generic.height + second_split_diff) < 3)
1227 {
1228 second_split_diff++;
1229 first_split_diff--;
1230 }
1231 make_invisible_and_set_new_height (
1232 first_win,
1233 first_win->generic.height + first_split_diff);
1234 second_win->generic.origin.y = first_win->generic.height - 1;
1235 make_invisible_and_set_new_height (second_win,
1236 second_win->generic.height
1237 + second_split_diff);
1238 TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
1239 make_invisible_and_set_new_height (TUI_CMD_WIN, new_height);
1240 }
1241 else
1242 {
1243 if ((TUI_CMD_WIN->generic.height + diff) < 1)
1244 { /* If there is no way to increase the command
1245 window take real estate from the 1st or 2nd
1246 window. */
1247 if ((TUI_CMD_WIN->generic.height + diff) < 1)
1248 {
1249 int i;
1250
1251 for (i = TUI_CMD_WIN->generic.height + diff;
1252 (i < 1); i++)
1253 if (primary_win_info == first_win)
1254 second_win->generic.height--;
1255 else
1256 first_win->generic.height--;
1257 }
1258 }
1259 if (primary_win_info == first_win)
1260 make_invisible_and_set_new_height (first_win, new_height);
1261 else
1262 make_invisible_and_set_new_height (
1263 first_win,
1264 first_win->generic.height);
1265 second_win->generic.origin.y = first_win->generic.height - 1;
1266 if (primary_win_info == second_win)
1267 make_invisible_and_set_new_height (second_win, new_height);
1268 else
1269 make_invisible_and_set_new_height (
1270 second_win, second_win->generic.height);
1271 TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1;
1272 if ((TUI_CMD_WIN->generic.height + diff) < 1)
1273 make_invisible_and_set_new_height (TUI_CMD_WIN, 1);
1274 else
1275 make_invisible_and_set_new_height (TUI_CMD_WIN,
1276 TUI_CMD_WIN->generic.height + diff);
1277 }
1278 make_visible_with_new_height (TUI_CMD_WIN);
1279 make_visible_with_new_height (second_win);
1280 make_visible_with_new_height (first_win);
1281 if (first_win->generic.content_size <= 0)
1282 tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT);
1283 if (second_win->generic.content_size <= 0)
1284 tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT);
1285 }
1286 }
1287 }
1288
1289 return status;
1290}
1291
1292
1293/* Function make the target window (and auxillary windows associated
1294 with the targer) invisible, and set the new height and
1295 location. */
1296static void
1297make_invisible_and_set_new_height (struct tui_win_info *win_info,
1298 int height)
1299{
1300 int i;
1301 struct tui_gen_win_info *gen_win_info;
1302
1303 tui_make_invisible (&win_info->generic);
1304 win_info->generic.height = height;
1305 if (height > 1)
1306 win_info->generic.viewport_height = height - 1;
1307 else
1308 win_info->generic.viewport_height = height;
1309 if (win_info != TUI_CMD_WIN)
1310 win_info->generic.viewport_height--;
1311
1312 /* Now deal with the auxillary windows associated with win_info. */
1313 switch (win_info->generic.type)
1314 {
1315 case SRC_WIN:
1316 case DISASSEM_WIN:
1317 gen_win_info = win_info->detail.source_info.execution_info;
1318 tui_make_invisible (gen_win_info);
1319 gen_win_info->height = height;
1320 gen_win_info->origin.y = win_info->generic.origin.y;
1321 if (height > 1)
1322 gen_win_info->viewport_height = height - 1;
1323 else
1324 gen_win_info->viewport_height = height;
1325 if (win_info != TUI_CMD_WIN)
1326 gen_win_info->viewport_height--;
1327
1328 if (tui_win_has_locator (win_info))
1329 {
1330 gen_win_info = tui_locator_win_info_ptr ();
1331 tui_make_invisible (gen_win_info);
1332 gen_win_info->origin.y = win_info->generic.origin.y + height;
1333 }
1334 break;
1335 case DATA_WIN:
1336 /* Delete all data item windows. */
1337 for (i = 0; i < win_info->generic.content_size; i++)
1338 {
1339 gen_win_info = (struct tui_gen_win_info *)
1340 &((struct tui_win_element *)
1341 win_info->generic.content[i])->which_element.data_window;
1342 tui_delete_win (gen_win_info->handle);
1343 gen_win_info->handle = (WINDOW *) NULL;
1344 }
1345 break;
1346 default:
1347 break;
1348 }
1349}
1350
1351
1352/* Function to make the windows with new heights visible. This means
1353 re-creating the windows' content since the window had to be
1354 destroyed to be made invisible. */
1355static void
1356make_visible_with_new_height (struct tui_win_info *win_info)
1357{
1358 struct symtab *s;
1359
1360 tui_make_visible (&win_info->generic);
1361 tui_check_and_display_highlight_if_needed (win_info);
1362 switch (win_info->generic.type)
1363 {
1364 case SRC_WIN:
1365 case DISASSEM_WIN:
1366 tui_free_win_content (win_info->detail.source_info.execution_info);
1367 tui_make_visible (win_info->detail.source_info.execution_info);
1368 if (win_info->generic.content != NULL)
1369 {
1370 struct gdbarch *gdbarch = win_info->detail.source_info.gdbarch;
1371 struct tui_line_or_address line_or_addr;
1372 struct symtab_and_line cursal
1373 = get_current_source_symtab_and_line ();
1374
1375 line_or_addr = win_info->detail.source_info.start_line_or_addr;
1376 tui_free_win_content (&win_info->generic);
1377 tui_update_source_window (win_info, gdbarch,
1378 cursal.symtab, line_or_addr, TRUE);
1379 }
1380 else if (deprecated_safe_get_selected_frame () != NULL)
1381 {
1382 struct tui_line_or_address line;
1383 struct symtab_and_line cursal
1384 = get_current_source_symtab_and_line ();
1385 struct frame_info *frame = deprecated_safe_get_selected_frame ();
1386 struct gdbarch *gdbarch = get_frame_arch (frame);
1387
1388 s = find_pc_symtab (get_frame_pc (frame));
1389 if (win_info->generic.type == SRC_WIN)
1390 {
1391 line.loa = LOA_LINE;
1392 line.u.line_no = cursal.line;
1393 }
1394 else
1395 {
1396 line.loa = LOA_ADDRESS;
1397 find_line_pc (s, cursal.line, &line.u.addr);
1398 }
1399 tui_update_source_window (win_info, gdbarch, s, line, TRUE);
1400 }
1401 if (tui_win_has_locator (win_info))
1402 {
1403 tui_make_visible (tui_locator_win_info_ptr ());
1404 tui_show_locator_content ();
1405 }
1406 break;
1407 case DATA_WIN:
1408 tui_display_all_data ();
1409 break;
1410 case CMD_WIN:
1411 win_info->detail.command_info.cur_line = 0;
1412 win_info->detail.command_info.curch = 0;
1413#ifdef HAVE_WRESIZE
1414 wresize (TUI_CMD_WIN->generic.handle,
1415 TUI_CMD_WIN->generic.height,
1416 TUI_CMD_WIN->generic.width);
1417#endif
1418 mvwin (TUI_CMD_WIN->generic.handle,
1419 TUI_CMD_WIN->generic.origin.y,
1420 TUI_CMD_WIN->generic.origin.x);
1421 wmove (win_info->generic.handle,
1422 win_info->detail.command_info.cur_line,
1423 win_info->detail.command_info.curch);
1424 break;
1425 default:
1426 break;
1427 }
1428}
1429
1430
1431static int
1432new_height_ok (struct tui_win_info *primary_win_info,
1433 int new_height)
1434{
1435 int ok = (new_height < tui_term_height ());
1436
1437 if (ok)
1438 {
1439 int diff;
1440 enum tui_layout_type cur_layout = tui_current_layout ();
1441
1442 diff = (new_height - primary_win_info->generic.height) * (-1);
1443 if (cur_layout == SRC_COMMAND || cur_layout == DISASSEM_COMMAND)
1444 {
1445 ok = ((primary_win_info->generic.type == CMD_WIN
1446 && new_height <= (tui_term_height () - 4)
1447 && new_height >= MIN_CMD_WIN_HEIGHT)
1448 || (primary_win_info->generic.type != CMD_WIN
1449 && new_height <= (tui_term_height () - 2)
1450 && new_height >= MIN_WIN_HEIGHT));
1451 if (ok)
1452 { /* Check the total height. */
1453 struct tui_win_info *win_info;
1454
1455 if (primary_win_info == TUI_CMD_WIN)
1456 win_info = (tui_source_windows ())->list[0];
1457 else
1458 win_info = TUI_CMD_WIN;
1459 ok = ((new_height +
1460 (win_info->generic.height + diff)) <= tui_term_height ());
1461 }
1462 }
1463 else
1464 {
1465 int cur_total_height, total_height, min_height = 0;
1466 struct tui_win_info *first_win;
1467 struct tui_win_info *second_win;
1468
1469 if (cur_layout == SRC_DISASSEM_COMMAND)
1470 {
1471 first_win = TUI_SRC_WIN;
1472 second_win = TUI_DISASM_WIN;
1473 }
1474 else
1475 {
1476 first_win = TUI_DATA_WIN;
1477 second_win = (tui_source_windows ())->list[0];
1478 }
1479 /* We could simply add all the heights to obtain the same
1480 result but below is more explicit since we subtract 1 for
1481 the line that the first and second windows share, and add
1482 one for the locator. */
1483 total_height = cur_total_height =
1484 (first_win->generic.height + second_win->generic.height - 1)
1485 + TUI_CMD_WIN->generic.height + 1; /* Locator. */
1486 if (primary_win_info == TUI_CMD_WIN)
1487 {
1488 /* Locator included since first & second win share a line. */
1489 ok = ((first_win->generic.height +
1490 second_win->generic.height + diff) >=
1491 (MIN_WIN_HEIGHT * 2)
1492 && new_height >= MIN_CMD_WIN_HEIGHT);
1493 if (ok)
1494 {
1495 total_height = new_height +
1496 (first_win->generic.height +
1497 second_win->generic.height + diff);
1498 min_height = MIN_CMD_WIN_HEIGHT;
1499 }
1500 }
1501 else
1502 {
1503 min_height = MIN_WIN_HEIGHT;
1504
1505 /* First see if we can increase/decrease the command
1506 window. And make sure that the command window is at
1507 least 1 line. */
1508 ok = ((TUI_CMD_WIN->generic.height + diff) > 0);
1509 if (!ok)
1510 { /* Looks like we have to increase/decrease one of
1511 the other windows. */
1512 if (primary_win_info == first_win)
1513 ok = (second_win->generic.height + diff) >= min_height;
1514 else
1515 ok = (first_win->generic.height + diff) >= min_height;
1516 }
1517 if (ok)
1518 {
1519 if (primary_win_info == first_win)
1520 total_height = new_height +
1521 second_win->generic.height +
1522 TUI_CMD_WIN->generic.height + diff;
1523 else
1524 total_height = new_height +
1525 first_win->generic.height +
1526 TUI_CMD_WIN->generic.height + diff;
1527 }
1528 }
1529 /* Now make sure that the proposed total height doesn't
1530 exceed the old total height. */
1531 if (ok)
1532 ok = (new_height >= min_height
1533 && total_height <= cur_total_height);
1534 }
1535 }
1536
1537 return ok;
1538}
1539
1540
1541static void
1542parse_scrolling_args (char *arg,
1543 struct tui_win_info **win_to_scroll,
1544 int *num_to_scroll)
1545{
1546 if (num_to_scroll)
1547 *num_to_scroll = 0;
1548 *win_to_scroll = tui_win_with_focus ();
1549
1550 /* First set up the default window to scroll, in case there is no
1551 window name arg. */
1552 if (arg != (char *) NULL)
1553 {
1554 char *buf, *buf_ptr;
1555
1556 /* Process the number of lines to scroll. */
1557 buf = buf_ptr = xstrdup (arg);
1558 if (isdigit (*buf_ptr))
1559 {
1560 char *num_str;
1561
1562 num_str = buf_ptr;
1563 buf_ptr = strchr (buf_ptr, ' ');
1564 if (buf_ptr != (char *) NULL)
1565 {
1566 *buf_ptr = (char) 0;
1567 if (num_to_scroll)
1568 *num_to_scroll = atoi (num_str);
1569 buf_ptr++;
1570 }
1571 else if (num_to_scroll)
1572 *num_to_scroll = atoi (num_str);
1573 }
1574
1575 /* Process the window name if one is specified. */
1576 if (buf_ptr != (char *) NULL)
1577 {
1578 char *wname;
1579 int i;
1580
1581 if (*buf_ptr == ' ')
1582 while (*(++buf_ptr) == ' ')
1583 ;
1584
1585 if (*buf_ptr != (char) 0)
1586 wname = buf_ptr;
1587 else
1588 wname = "?";
1589
1590 /* Validate the window name. */
1591 for (i = 0; i < strlen (wname); i++)
1592 wname[i] = toupper (wname[i]);
1593 *win_to_scroll = tui_partial_win_by_name (wname);
1594
1595 if (*win_to_scroll == (struct tui_win_info *) NULL
1596 || !(*win_to_scroll)->generic.is_visible)
1597 error (_("Invalid window specified. \n\
1598The window name specified must be valid and visible.\n"));
1599 else if (*win_to_scroll == TUI_CMD_WIN)
1600 *win_to_scroll = (tui_source_windows ())->list[0];
1601 }
1602 xfree (buf);
1603 }
1604}
GDB Binutils - Deliverables
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