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gdb/cli: Remove casts of NULL during assignment.
[deliverable/binutils-gdb.git] / gdb / tui / tui-layout.c
1 /* TUI layout window management.
2
3 Copyright (C) 1998-2015 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 "arch-utils.h"
24 #include "command.h"
25 #include "symtab.h"
26 #include "frame.h"
27 #include "source.h"
28 #include <ctype.h>
29
30 #include "tui/tui.h"
31 #include "tui/tui-data.h"
32 #include "tui/tui-windata.h"
33 #include "tui/tui-wingeneral.h"
34 #include "tui/tui-stack.h"
35 #include "tui/tui-regs.h"
36 #include "tui/tui-win.h"
37 #include "tui/tui-winsource.h"
38 #include "tui/tui-disasm.h"
39 #include "tui/tui-layout.h"
40 #include "gdb_curses.h"
41
42 /*******************************
43 ** Static Local Decls
44 ********************************/
45 static void show_layout (enum tui_layout_type);
46 static void init_gen_win_info (struct tui_gen_win_info *,
47 enum tui_win_type,
48 int, int, int, int);
49 static void *init_and_make_win (void *, enum tui_win_type,
50 int, int, int, int, int);
51 static void show_source_or_disasm_and_command (enum tui_layout_type);
52 static void make_source_or_disasm_window (struct tui_win_info **,
53 enum tui_win_type,
54 int, int);
55 static void make_command_window (struct tui_win_info **, int, int);
56 static void make_source_window (struct tui_win_info **, int, int);
57 static void make_disasm_window (struct tui_win_info **, int, int);
58 static void make_data_window (struct tui_win_info **, int, int);
59 static void show_source_command (void);
60 static void show_disasm_command (void);
61 static void show_source_disasm_command (void);
62 static void show_data (enum tui_layout_type);
63 static enum tui_layout_type next_layout (void);
64 static enum tui_layout_type prev_layout (void);
65 static void tui_layout_command (char *, int);
66 static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
67
68
69 /***************************************
70 ** DEFINITIONS
71 ***************************************/
72
73 #define LAYOUT_USAGE "Usage: layout prev | next | <layout_name> \n"
74
75 /* Show the screen layout defined. */
76 static void
77 show_layout (enum tui_layout_type layout)
78 {
79 enum tui_layout_type cur_layout = tui_current_layout ();
80
81 if (layout != cur_layout)
82 {
83 /* Since the new layout may cause changes in window size, we
84 should free the content and reallocate on next display of
85 source/asm. */
86 tui_free_all_source_wins_content ();
87 tui_clear_source_windows ();
88 if (layout == SRC_DATA_COMMAND
89 || layout == DISASSEM_DATA_COMMAND)
90 {
91 show_data (layout);
92 tui_refresh_all (tui_win_list);
93 }
94 else
95 {
96 /* First make the current layout be invisible. */
97 tui_make_all_invisible ();
98 tui_make_invisible (tui_locator_win_info_ptr ());
99
100 switch (layout)
101 {
102 /* Now show the new layout. */
103 case SRC_COMMAND:
104 show_source_command ();
105 tui_add_to_source_windows (TUI_SRC_WIN);
106 break;
107 case DISASSEM_COMMAND:
108 show_disasm_command ();
109 tui_add_to_source_windows (TUI_DISASM_WIN);
110 break;
111 case SRC_DISASSEM_COMMAND:
112 show_source_disasm_command ();
113 tui_add_to_source_windows (TUI_SRC_WIN);
114 tui_add_to_source_windows (TUI_DISASM_WIN);
115 break;
116 default:
117 break;
118 }
119 }
120 }
121 }
122
123
124 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
125 SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND. */
126 enum tui_status
127 tui_set_layout (enum tui_layout_type layout_type)
128 {
129 enum tui_status status = TUI_SUCCESS;
130
131 if (layout_type != UNDEFINED_LAYOUT)
132 {
133 enum tui_layout_type cur_layout = tui_current_layout (),
134 new_layout = UNDEFINED_LAYOUT;
135 int regs_populate = FALSE;
136 struct gdbarch *gdbarch;
137 CORE_ADDR addr;
138 struct tui_win_info *win_with_focus = tui_win_with_focus ();
139 struct tui_layout_def *layout_def = tui_layout_def ();
140
141 extract_display_start_addr (&gdbarch, &addr);
142
143 new_layout = layout_type;
144
145 regs_populate = (new_layout == SRC_DATA_COMMAND
146 || new_layout == DISASSEM_DATA_COMMAND);
147 if (new_layout != cur_layout)
148 {
149 show_layout (new_layout);
150
151 /* Now determine where focus should be. */
152 if (win_with_focus != TUI_CMD_WIN)
153 {
154 switch (new_layout)
155 {
156 case SRC_COMMAND:
157 tui_set_win_focus_to (TUI_SRC_WIN);
158 layout_def->display_mode = SRC_WIN;
159 layout_def->split = FALSE;
160 break;
161 case DISASSEM_COMMAND:
162 /* The previous layout was not showing code.
163 This can happen if there is no source
164 available:
165
166 1. if the source file is in another dir OR
167 2. if target was compiled without -g
168 We still want to show the assembly though! */
169
170 tui_get_begin_asm_address (&gdbarch, &addr);
171 tui_set_win_focus_to (TUI_DISASM_WIN);
172 layout_def->display_mode = DISASSEM_WIN;
173 layout_def->split = FALSE;
174 break;
175 case SRC_DISASSEM_COMMAND:
176 /* The previous layout was not showing code.
177 This can happen if there is no source
178 available:
179
180 1. if the source file is in another dir OR
181 2. if target was compiled without -g
182 We still want to show the assembly though! */
183
184 tui_get_begin_asm_address (&gdbarch, &addr);
185 if (win_with_focus == TUI_SRC_WIN)
186 tui_set_win_focus_to (TUI_SRC_WIN);
187 else
188 tui_set_win_focus_to (TUI_DISASM_WIN);
189 layout_def->split = TRUE;
190 break;
191 case SRC_DATA_COMMAND:
192 if (win_with_focus != TUI_DATA_WIN)
193 tui_set_win_focus_to (TUI_SRC_WIN);
194 else
195 tui_set_win_focus_to (TUI_DATA_WIN);
196 layout_def->display_mode = SRC_WIN;
197 layout_def->split = FALSE;
198 break;
199 case DISASSEM_DATA_COMMAND:
200 /* The previous layout was not showing code.
201 This can happen if there is no source
202 available:
203
204 1. if the source file is in another dir OR
205 2. if target was compiled without -g
206 We still want to show the assembly though! */
207
208 tui_get_begin_asm_address (&gdbarch, &addr);
209 if (win_with_focus != TUI_DATA_WIN)
210 tui_set_win_focus_to (TUI_DISASM_WIN);
211 else
212 tui_set_win_focus_to (TUI_DATA_WIN);
213 layout_def->display_mode = DISASSEM_WIN;
214 layout_def->split = FALSE;
215 break;
216 default:
217 break;
218 }
219 }
220 /*
221 * Now update the window content.
222 */
223 if (!regs_populate
224 && (new_layout == SRC_DATA_COMMAND
225 || new_layout == DISASSEM_DATA_COMMAND))
226 tui_display_all_data ();
227
228 tui_update_source_windows_with_addr (gdbarch, addr);
229
230 if (regs_populate)
231 {
232 struct reggroup *group =
233 TUI_DATA_WIN->detail.data_display_info.current_group;
234 tui_show_registers (group);
235 }
236 }
237 }
238 else
239 status = TUI_FAILURE;
240
241 return status;
242 }
243
244 /* Add the specified window to the layout in a logical way. This
245 means setting up the most logical layout given the window to be
246 added. */
247 void
248 tui_add_win_to_layout (enum tui_win_type type)
249 {
250 enum tui_layout_type cur_layout = tui_current_layout ();
251
252 switch (type)
253 {
254 case SRC_WIN:
255 if (cur_layout != SRC_COMMAND
256 && cur_layout != SRC_DISASSEM_COMMAND
257 && cur_layout != SRC_DATA_COMMAND)
258 {
259 tui_clear_source_windows_detail ();
260 if (cur_layout == DISASSEM_DATA_COMMAND)
261 show_layout (SRC_DATA_COMMAND);
262 else
263 show_layout (SRC_COMMAND);
264 }
265 break;
266 case DISASSEM_WIN:
267 if (cur_layout != DISASSEM_COMMAND
268 && cur_layout != SRC_DISASSEM_COMMAND
269 && cur_layout != DISASSEM_DATA_COMMAND)
270 {
271 tui_clear_source_windows_detail ();
272 if (cur_layout == SRC_DATA_COMMAND)
273 show_layout (DISASSEM_DATA_COMMAND);
274 else
275 show_layout (DISASSEM_COMMAND);
276 }
277 break;
278 case DATA_WIN:
279 if (cur_layout != SRC_DATA_COMMAND
280 && cur_layout != DISASSEM_DATA_COMMAND)
281 {
282 if (cur_layout == DISASSEM_COMMAND)
283 show_layout (DISASSEM_DATA_COMMAND);
284 else
285 show_layout (SRC_DATA_COMMAND);
286 }
287 break;
288 default:
289 break;
290 }
291 }
292
293
294 /* Answer the height of a window. If it hasn't been created yet,
295 answer what the height of a window would be based upon its type and
296 the layout. */
297 int
298 tui_default_win_height (enum tui_win_type type,
299 enum tui_layout_type layout)
300 {
301 int h;
302
303 if (tui_win_list[type] != (struct tui_win_info *) NULL)
304 h = tui_win_list[type]->generic.height;
305 else
306 {
307 switch (layout)
308 {
309 case SRC_COMMAND:
310 case DISASSEM_COMMAND:
311 if (TUI_CMD_WIN == NULL)
312 h = tui_term_height () / 2;
313 else
314 h = tui_term_height () - TUI_CMD_WIN->generic.height;
315 break;
316 case SRC_DISASSEM_COMMAND:
317 case SRC_DATA_COMMAND:
318 case DISASSEM_DATA_COMMAND:
319 if (TUI_CMD_WIN == NULL)
320 h = tui_term_height () / 3;
321 else
322 h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
323 break;
324 default:
325 h = 0;
326 break;
327 }
328 }
329
330 return h;
331 }
332
333
334 /* Answer the height of a window. If it hasn't been created yet,
335 answer what the height of a window would be based upon its type and
336 the layout. */
337 int
338 tui_default_win_viewport_height (enum tui_win_type type,
339 enum tui_layout_type layout)
340 {
341 int h;
342
343 h = tui_default_win_height (type, layout);
344
345 if (tui_win_list[type] == TUI_CMD_WIN)
346 h -= 1;
347 else
348 h -= 2;
349
350 return h;
351 }
352
353 /* Complete possible layout names. TEXT is the complete text entered so
354 far, WORD is the word currently being completed. */
355
356 static VEC (char_ptr) *
357 layout_completer (struct cmd_list_element *ignore,
358 const char *text, const char *word)
359 {
360 static const char *layout_names [] =
361 { "src", "asm", "split", "regs", "next", "prev", NULL };
362
363 return complete_on_enum (layout_names, text, word);
364 }
365
366 /* Function to initialize gdb commands, for tui window layout
367 manipulation. */
368
369 /* Provide a prototype to silence -Wmissing-prototypes. */
370 extern initialize_file_ftype _initialize_tui_layout;
371
372 void
373 _initialize_tui_layout (void)
374 {
375 struct cmd_list_element *cmd;
376
377 cmd = add_com ("layout", class_tui, tui_layout_command, _("\
378 Change the layout of windows.\n\
379 Usage: layout prev | next | <layout_name> \n\
380 Layout names are:\n\
381 src : Displays source and command windows.\n\
382 asm : Displays disassembly and command windows.\n\
383 split : Displays source, disassembly and command windows.\n\
384 regs : Displays register window. If existing layout\n\
385 is source/command or assembly/command, the \n\
386 register window is displayed. If the\n\
387 source/assembly/command (split) is displayed, \n\
388 the register window is displayed with \n\
389 the window that has current logical focus.\n"));
390 set_cmd_completer (cmd, layout_completer);
391 }
392
393
394 /*************************
395 ** STATIC LOCAL FUNCTIONS
396 **************************/
397
398
399 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, or
400 REGS. */
401 enum tui_status
402 tui_set_layout_by_name (const char *layout_name)
403 {
404 enum tui_status status = TUI_SUCCESS;
405
406 if (layout_name != (char *) NULL)
407 {
408 int i;
409 char *buf_ptr;
410 enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
411 enum tui_layout_type cur_layout = tui_current_layout ();
412 struct cleanup *old_chain;
413
414 buf_ptr = (char *) xstrdup (layout_name);
415 for (i = 0; (i < strlen (layout_name)); i++)
416 buf_ptr[i] = toupper (buf_ptr[i]);
417 old_chain = make_cleanup (xfree, buf_ptr);
418
419 /* First check for ambiguous input. */
420 if (strlen (buf_ptr) <= 1 && *buf_ptr == 'S')
421 {
422 warning (_("Ambiguous command input."));
423 status = TUI_FAILURE;
424 }
425 else
426 {
427 if (subset_compare (buf_ptr, "SRC"))
428 new_layout = SRC_COMMAND;
429 else if (subset_compare (buf_ptr, "ASM"))
430 new_layout = DISASSEM_COMMAND;
431 else if (subset_compare (buf_ptr, "SPLIT"))
432 new_layout = SRC_DISASSEM_COMMAND;
433 else if (subset_compare (buf_ptr, "REGS"))
434 {
435 if (cur_layout == SRC_COMMAND
436 || cur_layout == SRC_DATA_COMMAND)
437 new_layout = SRC_DATA_COMMAND;
438 else
439 new_layout = DISASSEM_DATA_COMMAND;
440 }
441 else if (subset_compare (buf_ptr, "NEXT"))
442 new_layout = next_layout ();
443 else if (subset_compare (buf_ptr, "PREV"))
444 new_layout = prev_layout ();
445 else
446 status = TUI_FAILURE;
447
448 if (status == TUI_SUCCESS)
449 {
450 /* Make sure the curses mode is enabled. */
451 tui_enable ();
452 tui_set_layout (new_layout);
453 }
454 }
455 do_cleanups (old_chain);
456 }
457 else
458 status = TUI_FAILURE;
459
460 return status;
461 }
462
463
464 static void
465 extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
466 {
467 enum tui_layout_type cur_layout = tui_current_layout ();
468 struct gdbarch *gdbarch = get_current_arch ();
469 CORE_ADDR addr;
470 CORE_ADDR pc;
471 struct symtab_and_line cursal = get_current_source_symtab_and_line ();
472
473 switch (cur_layout)
474 {
475 case SRC_COMMAND:
476 case SRC_DATA_COMMAND:
477 gdbarch = TUI_SRC_WIN->detail.source_info.gdbarch;
478 find_line_pc (cursal.symtab,
479 TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
480 &pc);
481 addr = pc;
482 break;
483 case DISASSEM_COMMAND:
484 case SRC_DISASSEM_COMMAND:
485 case DISASSEM_DATA_COMMAND:
486 gdbarch = TUI_DISASM_WIN->detail.source_info.gdbarch;
487 addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
488 break;
489 default:
490 addr = 0;
491 break;
492 }
493
494 *gdbarch_p = gdbarch;
495 *addr_p = addr;
496 }
497
498
499 static void
500 tui_layout_command (char *arg, int from_tty)
501 {
502 /* Switch to the selected layout. */
503 if (tui_set_layout_by_name (arg) != TUI_SUCCESS)
504 warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
505
506 }
507
508 /* Answer the previous layout to cycle to. */
509 static enum tui_layout_type
510 next_layout (void)
511 {
512 int new_layout;
513
514 new_layout = tui_current_layout ();
515 if (new_layout == UNDEFINED_LAYOUT)
516 new_layout = SRC_COMMAND;
517 else
518 {
519 new_layout++;
520 if (new_layout == UNDEFINED_LAYOUT)
521 new_layout = SRC_COMMAND;
522 }
523
524 return (enum tui_layout_type) new_layout;
525 }
526
527
528 /* Answer the next layout to cycle to. */
529 static enum tui_layout_type
530 prev_layout (void)
531 {
532 int new_layout;
533
534 new_layout = tui_current_layout ();
535 if (new_layout == SRC_COMMAND)
536 new_layout = DISASSEM_DATA_COMMAND;
537 else
538 {
539 new_layout--;
540 if (new_layout == UNDEFINED_LAYOUT)
541 new_layout = DISASSEM_DATA_COMMAND;
542 }
543
544 return (enum tui_layout_type) new_layout;
545 }
546
547
548
549 static void
550 make_command_window (struct tui_win_info **win_info_ptr,
551 int height, int origin_y)
552 {
553 *win_info_ptr = init_and_make_win (*win_info_ptr,
554 CMD_WIN,
555 height,
556 tui_term_width (),
557 0,
558 origin_y,
559 DONT_BOX_WINDOW);
560
561 (*win_info_ptr)->can_highlight = FALSE;
562 }
563
564
565 /* make_source_window().
566 */
567 static void
568 make_source_window (struct tui_win_info **win_info_ptr,
569 int height, int origin_y)
570 {
571 make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
572
573 return;
574 } /* make_source_window */
575
576
577 /* make_disasm_window().
578 */
579 static void
580 make_disasm_window (struct tui_win_info **win_info_ptr,
581 int height, int origin_y)
582 {
583 make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
584
585 return;
586 } /* make_disasm_window */
587
588
589 static void
590 make_data_window (struct tui_win_info **win_info_ptr,
591 int height, int origin_y)
592 {
593 *win_info_ptr = init_and_make_win (*win_info_ptr,
594 DATA_WIN,
595 height,
596 tui_term_width (),
597 0,
598 origin_y,
599 BOX_WINDOW);
600 }
601
602
603
604 /* Show the Source/Command layout. */
605 static void
606 show_source_command (void)
607 {
608 show_source_or_disasm_and_command (SRC_COMMAND);
609 }
610
611
612 /* Show the Dissassem/Command layout. */
613 static void
614 show_disasm_command (void)
615 {
616 show_source_or_disasm_and_command (DISASSEM_COMMAND);
617 }
618
619
620 /* Show the Source/Disassem/Command layout. */
621 static void
622 show_source_disasm_command (void)
623 {
624 if (tui_current_layout () != SRC_DISASSEM_COMMAND)
625 {
626 int cmd_height, src_height, asm_height;
627
628 if (TUI_CMD_WIN != NULL)
629 cmd_height = TUI_CMD_WIN->generic.height;
630 else
631 cmd_height = tui_term_height () / 3;
632
633 src_height = (tui_term_height () - cmd_height) / 2;
634 asm_height = tui_term_height () - (src_height + cmd_height);
635
636 if (TUI_SRC_WIN == NULL)
637 make_source_window (&TUI_SRC_WIN, src_height, 0);
638 else
639 {
640 init_gen_win_info (&TUI_SRC_WIN->generic,
641 TUI_SRC_WIN->generic.type,
642 src_height,
643 TUI_SRC_WIN->generic.width,
644 TUI_SRC_WIN->detail.source_info.execution_info->width,
645 0);
646 TUI_SRC_WIN->can_highlight = TRUE;
647 init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
648 EXEC_INFO_WIN,
649 src_height,
650 3,
651 0,
652 0);
653 tui_make_visible (&TUI_SRC_WIN->generic);
654 tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
655 TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
656 }
657 if (TUI_SRC_WIN != NULL)
658 {
659 struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
660
661 tui_show_source_content (TUI_SRC_WIN);
662 if (TUI_DISASM_WIN == NULL)
663 {
664 make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
665 locator = init_and_make_win (locator,
666 LOCATOR_WIN,
667 2 /* 1 */ ,
668 tui_term_width (),
669 0,
670 (src_height + asm_height) - 1,
671 DONT_BOX_WINDOW);
672 }
673 else
674 {
675 init_gen_win_info (locator,
676 LOCATOR_WIN,
677 2 /* 1 */ ,
678 tui_term_width (),
679 0,
680 (src_height + asm_height) - 1);
681 TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
682 init_gen_win_info (&TUI_DISASM_WIN->generic,
683 TUI_DISASM_WIN->generic.type,
684 asm_height,
685 TUI_DISASM_WIN->generic.width,
686 TUI_DISASM_WIN->detail.source_info.execution_info->width,
687 src_height - 1);
688 init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
689 EXEC_INFO_WIN,
690 asm_height,
691 3,
692 0,
693 src_height - 1);
694 TUI_DISASM_WIN->can_highlight = TRUE;
695 tui_make_visible (&TUI_DISASM_WIN->generic);
696 tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
697 }
698 if (TUI_DISASM_WIN != NULL)
699 {
700 TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
701 TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
702 tui_make_visible (locator);
703 tui_show_locator_content ();
704 tui_show_source_content (TUI_DISASM_WIN);
705
706 if (TUI_CMD_WIN == NULL)
707 make_command_window (&TUI_CMD_WIN,
708 cmd_height,
709 tui_term_height () - cmd_height);
710 else
711 {
712 init_gen_win_info (&TUI_CMD_WIN->generic,
713 TUI_CMD_WIN->generic.type,
714 TUI_CMD_WIN->generic.height,
715 TUI_CMD_WIN->generic.width,
716 0,
717 TUI_CMD_WIN->generic.origin.y);
718 TUI_CMD_WIN->can_highlight = FALSE;
719 tui_make_visible (&TUI_CMD_WIN->generic);
720 }
721 if (TUI_CMD_WIN != NULL)
722 tui_refresh_win (&TUI_CMD_WIN->generic);
723 }
724 }
725 tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
726 }
727 }
728
729
730 /* Show the Source/Data/Command or the Dissassembly/Data/Command
731 layout. */
732 static void
733 show_data (enum tui_layout_type new_layout)
734 {
735 int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
736 int src_height, data_height;
737 enum tui_win_type win_type;
738 struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
739
740
741 data_height = total_height / 2;
742 src_height = total_height - data_height;
743 tui_make_all_invisible ();
744 tui_make_invisible (locator);
745 make_data_window (&TUI_DATA_WIN, data_height, 0);
746 TUI_DATA_WIN->can_highlight = TRUE;
747 if (new_layout == SRC_DATA_COMMAND)
748 win_type = SRC_WIN;
749 else
750 win_type = DISASSEM_WIN;
751 if (tui_win_list[win_type] == NULL)
752 {
753 if (win_type == SRC_WIN)
754 make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
755 else
756 make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
757 locator = init_and_make_win (locator,
758 LOCATOR_WIN,
759 2 /* 1 */ ,
760 tui_term_width (),
761 0,
762 total_height - 1,
763 DONT_BOX_WINDOW);
764 }
765 else
766 {
767 init_gen_win_info (&tui_win_list[win_type]->generic,
768 tui_win_list[win_type]->generic.type,
769 src_height,
770 tui_win_list[win_type]->generic.width,
771 tui_win_list[win_type]->detail.source_info.execution_info->width,
772 data_height - 1);
773 init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
774 EXEC_INFO_WIN,
775 src_height,
776 3,
777 0,
778 data_height - 1);
779 tui_make_visible (&tui_win_list[win_type]->generic);
780 tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
781 init_gen_win_info (locator,
782 LOCATOR_WIN,
783 2 /* 1 */ ,
784 tui_term_width (),
785 0,
786 total_height - 1);
787 }
788 tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
789 tui_make_visible (locator);
790 tui_show_locator_content ();
791 tui_add_to_source_windows (tui_win_list[win_type]);
792 tui_set_current_layout_to (new_layout);
793 }
794
795 /* init_gen_win_info().
796 */
797 static void
798 init_gen_win_info (struct tui_gen_win_info *win_info,
799 enum tui_win_type type,
800 int height, int width,
801 int origin_x, int origin_y)
802 {
803 int h = height;
804
805 win_info->type = type;
806 win_info->width = width;
807 win_info->height = h;
808 if (h > 1)
809 {
810 win_info->viewport_height = h - 1;
811 if (win_info->type != CMD_WIN)
812 win_info->viewport_height--;
813 }
814 else
815 win_info->viewport_height = 1;
816 win_info->origin.x = origin_x;
817 win_info->origin.y = origin_y;
818
819 return;
820 } /* init_gen_win_info */
821
822 /* init_and_make_win().
823 */
824 static void *
825 init_and_make_win (void *opaque_win_info,
826 enum tui_win_type win_type,
827 int height, int width,
828 int origin_x, int origin_y,
829 int box_it)
830 {
831 struct tui_gen_win_info *generic;
832
833 if (opaque_win_info == NULL)
834 {
835 if (tui_win_is_auxillary (win_type))
836 opaque_win_info = (void *) tui_alloc_generic_win_info ();
837 else
838 opaque_win_info = (void *) tui_alloc_win_info (win_type);
839 }
840 if (tui_win_is_auxillary (win_type))
841 generic = (struct tui_gen_win_info *) opaque_win_info;
842 else
843 generic = &((struct tui_win_info *) opaque_win_info)->generic;
844
845 if (opaque_win_info != NULL)
846 {
847 init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
848 if (!tui_win_is_auxillary (win_type))
849 {
850 if (generic->type == CMD_WIN)
851 ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
852 else
853 ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
854 }
855 tui_make_window (generic, box_it);
856 }
857 return opaque_win_info;
858 }
859
860
861 static void
862 make_source_or_disasm_window (struct tui_win_info **win_info_ptr,
863 enum tui_win_type type,
864 int height, int origin_y)
865 {
866 struct tui_gen_win_info *execution_info = (struct tui_gen_win_info *) NULL;
867
868 /* Create the exeuction info window. */
869 if (type == SRC_WIN)
870 execution_info = tui_source_exec_info_win_ptr ();
871 else
872 execution_info = tui_disassem_exec_info_win_ptr ();
873 execution_info = init_and_make_win (execution_info,
874 EXEC_INFO_WIN,
875 height,
876 3,
877 0,
878 origin_y,
879 DONT_BOX_WINDOW);
880
881 /* Now create the source window. */
882 *win_info_ptr = init_and_make_win (*win_info_ptr,
883 type,
884 height,
885 tui_term_width () - execution_info->width,
886 execution_info->width,
887 origin_y,
888 BOX_WINDOW);
889
890 (*win_info_ptr)->detail.source_info.execution_info = execution_info;
891 }
892
893
894 /* Show the Source/Command or the Disassem layout. */
895 static void
896 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
897 {
898 if (tui_current_layout () != layout_type)
899 {
900 struct tui_win_info **win_info_ptr;
901 int src_height, cmd_height;
902 struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
903
904 if (TUI_CMD_WIN != NULL)
905 cmd_height = TUI_CMD_WIN->generic.height;
906 else
907 cmd_height = tui_term_height () / 3;
908 src_height = tui_term_height () - cmd_height;
909
910 if (layout_type == SRC_COMMAND)
911 win_info_ptr = &TUI_SRC_WIN;
912 else
913 win_info_ptr = &TUI_DISASM_WIN;
914
915 if ((*win_info_ptr) == NULL)
916 {
917 if (layout_type == SRC_COMMAND)
918 make_source_window (win_info_ptr, src_height - 1, 0);
919 else
920 make_disasm_window (win_info_ptr, src_height - 1, 0);
921 locator = init_and_make_win (locator,
922 LOCATOR_WIN,
923 2 /* 1 */ ,
924 tui_term_width (),
925 0,
926 src_height - 1,
927 DONT_BOX_WINDOW);
928 }
929 else
930 {
931 init_gen_win_info (locator,
932 LOCATOR_WIN,
933 2 /* 1 */ ,
934 tui_term_width (),
935 0,
936 src_height - 1);
937 (*win_info_ptr)->detail.source_info.has_locator = TRUE;
938 init_gen_win_info (&(*win_info_ptr)->generic,
939 (*win_info_ptr)->generic.type,
940 src_height - 1,
941 (*win_info_ptr)->generic.width,
942 (*win_info_ptr)->detail.source_info.execution_info->width,
943 0);
944 init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
945 EXEC_INFO_WIN,
946 src_height - 1,
947 3,
948 0,
949 0);
950 (*win_info_ptr)->can_highlight = TRUE;
951 tui_make_visible (&(*win_info_ptr)->generic);
952 tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
953 }
954 if ((*win_info_ptr) != NULL)
955 {
956 (*win_info_ptr)->detail.source_info.has_locator = TRUE;
957 tui_make_visible (locator);
958 tui_show_locator_content ();
959 tui_show_source_content (*win_info_ptr);
960
961 if (TUI_CMD_WIN == NULL)
962 {
963 make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
964 tui_refresh_win (&TUI_CMD_WIN->generic);
965 }
966 else
967 {
968 init_gen_win_info (&TUI_CMD_WIN->generic,
969 TUI_CMD_WIN->generic.type,
970 TUI_CMD_WIN->generic.height,
971 TUI_CMD_WIN->generic.width,
972 TUI_CMD_WIN->generic.origin.x,
973 TUI_CMD_WIN->generic.origin.y);
974 TUI_CMD_WIN->can_highlight = FALSE;
975 tui_make_visible (&TUI_CMD_WIN->generic);
976 }
977 }
978 tui_set_current_layout_to (layout_type);
979 }
980 }
GDB Binutils - Deliverables
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