xref: /dragonfly/contrib/gdb-7/gdb/tui/tui-layout.c (revision de8e141f24382815c10a4012d209bbbf7abf1112)
1 /* TUI layout window management.
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 "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 
41 #include "gdb_string.h"
42 #include "gdb_curses.h"
43 
44 /*******************************
45 ** Static Local Decls
46 ********************************/
47 static void show_layout (enum tui_layout_type);
48 static void init_gen_win_info (struct tui_gen_win_info *,
49                                      enum tui_win_type,
50                                      int, int, int, int);
51 static void *init_and_make_win (void *, enum tui_win_type,
52                                         int, int, int, int, int);
53 static void show_source_or_disasm_and_command (enum tui_layout_type);
54 static void make_source_or_disasm_window (struct tui_win_info **,
55                                                     enum tui_win_type,
56                                                     int, int);
57 static void make_command_window (struct tui_win_info **, int, int);
58 static void make_source_window (struct tui_win_info **, int, int);
59 static void make_disasm_window (struct tui_win_info **, int, int);
60 static void make_data_window (struct tui_win_info **, int, int);
61 static void show_source_command (void);
62 static void show_disasm_command (void);
63 static void show_source_disasm_command (void);
64 static void show_data (enum tui_layout_type);
65 static enum tui_layout_type next_layout (void);
66 static enum tui_layout_type prev_layout (void);
67 static void tui_layout_command (char *, int);
68 static void tui_toggle_layout_command (char *, int);
69 static void tui_toggle_split_layout_command (char *, int);
70 static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
71 static void tui_handle_xdb_layout (struct tui_layout_def *);
72 
73 
74 /***************************************
75 ** DEFINITIONS
76 ***************************************/
77 
78 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
79 
80 /* Show the screen layout defined.  */
81 static void
show_layout(enum tui_layout_type layout)82 show_layout (enum tui_layout_type layout)
83 {
84   enum tui_layout_type cur_layout = tui_current_layout ();
85 
86   if (layout != cur_layout)
87     {
88       /* Since the new layout may cause changes in window size, we
89          should free the content and reallocate on next display of
90          source/asm.  */
91       tui_free_all_source_wins_content ();
92       tui_clear_source_windows ();
93       if (layout == SRC_DATA_COMMAND
94             || layout == DISASSEM_DATA_COMMAND)
95           {
96             show_data (layout);
97             tui_refresh_all (tui_win_list);
98           }
99       else
100           {
101             /* First make the current layout be invisible.  */
102             tui_make_all_invisible ();
103             tui_make_invisible (tui_locator_win_info_ptr ());
104 
105             switch (layout)
106               {
107                 /* Now show the new layout.  */
108               case SRC_COMMAND:
109                 show_source_command ();
110                 tui_add_to_source_windows (TUI_SRC_WIN);
111                 break;
112               case DISASSEM_COMMAND:
113                 show_disasm_command ();
114                 tui_add_to_source_windows (TUI_DISASM_WIN);
115                 break;
116               case SRC_DISASSEM_COMMAND:
117                 show_source_disasm_command ();
118                 tui_add_to_source_windows (TUI_SRC_WIN);
119                 tui_add_to_source_windows (TUI_DISASM_WIN);
120                 break;
121               default:
122                 break;
123               }
124           }
125     }
126 }
127 
128 
129 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
130    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
131    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
132    UNDEFINED_LAYOUT, then the data window is populated according to
133    regs_display_type.  */
134 enum tui_status
tui_set_layout(enum tui_layout_type layout_type,enum tui_register_display_type regs_display_type)135 tui_set_layout (enum tui_layout_type layout_type,
136                     enum tui_register_display_type regs_display_type)
137 {
138   enum tui_status status = TUI_SUCCESS;
139 
140   if (layout_type != UNDEFINED_LAYOUT
141       || regs_display_type != TUI_UNDEFINED_REGS)
142     {
143       enum tui_layout_type cur_layout = tui_current_layout (),
144           new_layout = UNDEFINED_LAYOUT;
145       int regs_populate = FALSE;
146       struct gdbarch *gdbarch;
147       CORE_ADDR addr;
148       struct tui_win_info *win_with_focus = tui_win_with_focus ();
149       struct tui_layout_def *layout_def = tui_layout_def ();
150 
151       extract_display_start_addr (&gdbarch, &addr);
152 
153       if (layout_type == UNDEFINED_LAYOUT
154             && regs_display_type != TUI_UNDEFINED_REGS)
155           {
156             if (cur_layout == SRC_DISASSEM_COMMAND)
157               new_layout = DISASSEM_DATA_COMMAND;
158             else if (cur_layout == SRC_COMMAND
159                        || cur_layout == SRC_DATA_COMMAND)
160               new_layout = SRC_DATA_COMMAND;
161             else if (cur_layout == DISASSEM_COMMAND
162                        || cur_layout == DISASSEM_DATA_COMMAND)
163               new_layout = DISASSEM_DATA_COMMAND;
164           }
165       else
166           new_layout = layout_type;
167 
168       regs_populate = (new_layout == SRC_DATA_COMMAND
169                            || new_layout == DISASSEM_DATA_COMMAND
170                            || regs_display_type != TUI_UNDEFINED_REGS);
171       if (new_layout != cur_layout
172             || regs_display_type != TUI_UNDEFINED_REGS)
173           {
174             if (new_layout != cur_layout)
175               {
176                 show_layout (new_layout);
177 
178                 /* Now determine where focus should be.  */
179                 if (win_with_focus != TUI_CMD_WIN)
180                     {
181                       switch (new_layout)
182                         {
183                         case SRC_COMMAND:
184                           tui_set_win_focus_to (TUI_SRC_WIN);
185                           layout_def->display_mode = SRC_WIN;
186                           layout_def->split = FALSE;
187                           break;
188                         case DISASSEM_COMMAND:
189                           /* The previous layout was not showing code.
190                              This can happen if there is no source
191                              available:
192 
193                              1. if the source file is in another dir OR
194                              2. if target was compiled without -g
195                              We still want to show the assembly though!  */
196 
197                           tui_get_begin_asm_address (&gdbarch, &addr);
198                           tui_set_win_focus_to (TUI_DISASM_WIN);
199                           layout_def->display_mode = DISASSEM_WIN;
200                           layout_def->split = FALSE;
201                           break;
202                         case SRC_DISASSEM_COMMAND:
203                           /* The previous layout was not showing code.
204                              This can happen if there is no source
205                              available:
206 
207                              1. if the source file is in another dir OR
208                              2. if target was compiled without -g
209                              We still want to show the assembly though!  */
210 
211                           tui_get_begin_asm_address (&gdbarch, &addr);
212                           if (win_with_focus == TUI_SRC_WIN)
213                               tui_set_win_focus_to (TUI_SRC_WIN);
214                           else
215                               tui_set_win_focus_to (TUI_DISASM_WIN);
216                           layout_def->split = TRUE;
217                           break;
218                         case SRC_DATA_COMMAND:
219                           if (win_with_focus != TUI_DATA_WIN)
220                               tui_set_win_focus_to (TUI_SRC_WIN);
221                           else
222                               tui_set_win_focus_to (TUI_DATA_WIN);
223                           layout_def->display_mode = SRC_WIN;
224                           layout_def->split = FALSE;
225                           break;
226                         case DISASSEM_DATA_COMMAND:
227                           /* The previous layout was not showing code.
228                              This can happen if there is no source
229                              available:
230 
231                                1. if the source file is in another dir OR
232                              2. if target was compiled without -g
233                              We still want to show the assembly though!  */
234 
235                           tui_get_begin_asm_address (&gdbarch, &addr);
236                           if (win_with_focus != TUI_DATA_WIN)
237                               tui_set_win_focus_to (TUI_DISASM_WIN);
238                           else
239                               tui_set_win_focus_to (TUI_DATA_WIN);
240                           layout_def->display_mode = DISASSEM_WIN;
241                           layout_def->split = FALSE;
242                           break;
243                         default:
244                           break;
245                         }
246                     }
247                 /*
248                  * Now update the window content.
249                  */
250                 if (!regs_populate
251                       && (new_layout == SRC_DATA_COMMAND
252                           || new_layout == DISASSEM_DATA_COMMAND))
253                     tui_display_all_data ();
254 
255                 tui_update_source_windows_with_addr (gdbarch, addr);
256               }
257             if (regs_populate)
258               {
259               tui_show_registers (TUI_DATA_WIN->detail.data_display_info.current_group);
260               }
261           }
262     }
263   else
264     status = TUI_FAILURE;
265 
266   return status;
267 }
268 
269 /* Add the specified window to the layout in a logical way.  This
270    means setting up the most logical layout given the window to be
271    added.  */
272 void
tui_add_win_to_layout(enum tui_win_type type)273 tui_add_win_to_layout (enum tui_win_type type)
274 {
275   enum tui_layout_type cur_layout = tui_current_layout ();
276 
277   switch (type)
278     {
279     case SRC_WIN:
280       if (cur_layout != SRC_COMMAND
281             && cur_layout != SRC_DISASSEM_COMMAND
282             && cur_layout != SRC_DATA_COMMAND)
283           {
284             tui_clear_source_windows_detail ();
285             if (cur_layout == DISASSEM_DATA_COMMAND)
286               show_layout (SRC_DATA_COMMAND);
287             else
288               show_layout (SRC_COMMAND);
289           }
290       break;
291     case DISASSEM_WIN:
292       if (cur_layout != DISASSEM_COMMAND
293             && cur_layout != SRC_DISASSEM_COMMAND
294             && cur_layout != DISASSEM_DATA_COMMAND)
295           {
296             tui_clear_source_windows_detail ();
297             if (cur_layout == SRC_DATA_COMMAND)
298               show_layout (DISASSEM_DATA_COMMAND);
299             else
300               show_layout (DISASSEM_COMMAND);
301           }
302       break;
303     case DATA_WIN:
304       if (cur_layout != SRC_DATA_COMMAND
305             && cur_layout != DISASSEM_DATA_COMMAND)
306           {
307             if (cur_layout == DISASSEM_COMMAND)
308               show_layout (DISASSEM_DATA_COMMAND);
309             else
310               show_layout (SRC_DATA_COMMAND);
311           }
312       break;
313     default:
314       break;
315     }
316 }
317 
318 
319 /* Answer the height of a window.  If it hasn't been created yet,
320    answer what the height of a window would be based upon its type and
321    the layout.  */
322 int
tui_default_win_height(enum tui_win_type type,enum tui_layout_type layout)323 tui_default_win_height (enum tui_win_type type,
324                               enum tui_layout_type layout)
325 {
326   int h;
327 
328   if (tui_win_list[type] != (struct tui_win_info *) NULL)
329     h = tui_win_list[type]->generic.height;
330   else
331     {
332       switch (layout)
333           {
334           case SRC_COMMAND:
335           case DISASSEM_COMMAND:
336             if (TUI_CMD_WIN == NULL)
337               h = tui_term_height () / 2;
338             else
339               h = tui_term_height () - TUI_CMD_WIN->generic.height;
340             break;
341           case SRC_DISASSEM_COMMAND:
342           case SRC_DATA_COMMAND:
343           case DISASSEM_DATA_COMMAND:
344             if (TUI_CMD_WIN == NULL)
345               h = tui_term_height () / 3;
346             else
347               h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
348             break;
349           default:
350             h = 0;
351             break;
352           }
353     }
354 
355   return h;
356 }
357 
358 
359 /* Answer the height of a window.  If it hasn't been created yet,
360    answer what the height of a window would be based upon its type and
361    the layout.  */
362 int
tui_default_win_viewport_height(enum tui_win_type type,enum tui_layout_type layout)363 tui_default_win_viewport_height (enum tui_win_type type,
364                                          enum tui_layout_type layout)
365 {
366   int h;
367 
368   h = tui_default_win_height (type, layout);
369 
370   if (tui_win_list[type] == TUI_CMD_WIN)
371     h -= 1;
372   else
373     h -= 2;
374 
375   return h;
376 }
377 
378 
379 /* Function to initialize gdb commands, for tui window layout
380    manipulation.  */
381 
382 /* Provide a prototype to silence -Wmissing-prototypes.  */
383 extern initialize_file_ftype _initialize_tui_layout;
384 
385 void
_initialize_tui_layout(void)386 _initialize_tui_layout (void)
387 {
388   add_com ("layout", class_tui, tui_layout_command, _("\
389 Change the layout of windows.\n\
390 Usage: layout prev | next | <layout_name> \n\
391 Layout names are:\n\
392    src   : Displays source and command windows.\n\
393    asm   : Displays disassembly and command windows.\n\
394    split : Displays source, disassembly and command windows.\n\
395    regs  : Displays register window. If existing layout\n\
396            is source/command or assembly/command, the \n\
397            register window is displayed. If the\n\
398            source/assembly/command (split) is displayed, \n\
399            the register window is displayed with \n\
400            the window that has current logical focus.\n"));
401   if (xdb_commands)
402     {
403       add_com ("td", class_tui, tui_toggle_layout_command, _("\
404 Toggle between Source/Command and Disassembly/Command layouts.\n"));
405       add_com ("ts", class_tui, tui_toggle_split_layout_command, _("\
406 Toggle between Source/Command or Disassembly/Command and \n\
407 Source/Disassembly/Command layouts.\n"));
408     }
409 }
410 
411 
412 /*************************
413 ** STATIC LOCAL FUNCTIONS
414 **************************/
415 
416 
417 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
418    REGS, $REGS, $GREGS, $FREGS, $SREGS.  */
419 enum tui_status
tui_set_layout_for_display_command(const char * layout_name)420 tui_set_layout_for_display_command (const char *layout_name)
421 {
422   enum tui_status status = TUI_SUCCESS;
423 
424   if (layout_name != (char *) NULL)
425     {
426       int i;
427       char *buf_ptr;
428       enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
429       enum tui_register_display_type dpy_type = TUI_UNDEFINED_REGS;
430       enum tui_layout_type cur_layout = tui_current_layout ();
431 
432       buf_ptr = (char *) xstrdup (layout_name);
433       for (i = 0; (i < strlen (layout_name)); i++)
434           buf_ptr[i] = toupper (buf_ptr[i]);
435 
436       /* First check for ambiguous input.  */
437       if (strlen (buf_ptr) <= 1
438             && (*buf_ptr == 'S' || *buf_ptr == '$'))
439           {
440             warning (_("Ambiguous command input."));
441             status = TUI_FAILURE;
442           }
443       else
444           {
445             if (subset_compare (buf_ptr, "SRC"))
446               new_layout = SRC_COMMAND;
447             else if (subset_compare (buf_ptr, "ASM"))
448               new_layout = DISASSEM_COMMAND;
449             else if (subset_compare (buf_ptr, "SPLIT"))
450               new_layout = SRC_DISASSEM_COMMAND;
451             else if (subset_compare (buf_ptr, "REGS")
452                        || subset_compare (buf_ptr, TUI_GENERAL_SPECIAL_REGS_NAME)
453                        || subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME)
454                        || subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME)
455                        || subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
456               {
457                 if (cur_layout == SRC_COMMAND
458                       || cur_layout == SRC_DATA_COMMAND)
459                     new_layout = SRC_DATA_COMMAND;
460                 else
461                     new_layout = DISASSEM_DATA_COMMAND;
462 
463                 /* Could ifdef out the following code. when compile with
464                      -z, there are null pointer references that cause a
465                      core dump if 'layout regs' is the first layout
466                      command issued by the user. HP has asked us to hook
467                      up this code.  - edie epstein  */
468                 if (subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME))
469                     {
470                       if (TUI_DATA_WIN->detail.data_display_info.regs_display_type
471                           != TUI_SFLOAT_REGS
472                           && TUI_DATA_WIN->detail.data_display_info.regs_display_type
473                           != TUI_DFLOAT_REGS)
474                         dpy_type = TUI_SFLOAT_REGS;
475                       else
476                         dpy_type =
477                           TUI_DATA_WIN->detail.data_display_info.regs_display_type;
478                     }
479                 else if (subset_compare (buf_ptr,
480                                               TUI_GENERAL_SPECIAL_REGS_NAME))
481                     dpy_type = TUI_GENERAL_AND_SPECIAL_REGS;
482                 else if (subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME))
483                     dpy_type = TUI_GENERAL_REGS;
484                 else if (subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
485                     dpy_type = TUI_SPECIAL_REGS;
486                 else if (TUI_DATA_WIN)
487                     {
488                       if (TUI_DATA_WIN->detail.data_display_info.regs_display_type
489                           != TUI_UNDEFINED_REGS)
490                         dpy_type
491                           = TUI_DATA_WIN->detail.data_display_info.regs_display_type;
492                       else
493                         dpy_type = TUI_GENERAL_REGS;
494                     }
495 
496                 /* End of potential ifdef.
497                  */
498 
499                 /* If ifdefed out code above, then assume that the user
500                      wishes to display the general purpose registers .
501                 */
502 
503                 /* dpy_type = TUI_GENERAL_REGS; */
504               }
505             else if (subset_compare (buf_ptr, "NEXT"))
506               new_layout = next_layout ();
507             else if (subset_compare (buf_ptr, "PREV"))
508               new_layout = prev_layout ();
509             else
510               status = TUI_FAILURE;
511 
512             tui_set_layout (new_layout, dpy_type);
513           }
514       xfree (buf_ptr);
515     }
516   else
517     status = TUI_FAILURE;
518 
519   return status;
520 }
521 
522 
523 static void
extract_display_start_addr(struct gdbarch ** gdbarch_p,CORE_ADDR * addr_p)524 extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
525 {
526   enum tui_layout_type cur_layout = tui_current_layout ();
527   struct gdbarch *gdbarch = get_current_arch ();
528   CORE_ADDR addr;
529   CORE_ADDR pc;
530   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
531 
532   switch (cur_layout)
533     {
534     case SRC_COMMAND:
535     case SRC_DATA_COMMAND:
536       gdbarch = TUI_SRC_WIN->detail.source_info.gdbarch;
537       find_line_pc (cursal.symtab,
538                         TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
539                         &pc);
540       addr = pc;
541       break;
542     case DISASSEM_COMMAND:
543     case SRC_DISASSEM_COMMAND:
544     case DISASSEM_DATA_COMMAND:
545       gdbarch = TUI_DISASM_WIN->detail.source_info.gdbarch;
546       addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
547       break;
548     default:
549       addr = 0;
550       break;
551     }
552 
553   *gdbarch_p = gdbarch;
554   *addr_p = addr;
555 }
556 
557 
558 static void
tui_handle_xdb_layout(struct tui_layout_def * layout_def)559 tui_handle_xdb_layout (struct tui_layout_def *layout_def)
560 {
561   if (layout_def->split)
562     {
563       tui_set_layout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
564       tui_set_win_focus_to (tui_win_list[layout_def->display_mode]);
565     }
566   else
567     {
568       if (layout_def->display_mode == SRC_WIN)
569           tui_set_layout (SRC_COMMAND, TUI_UNDEFINED_REGS);
570       else
571           tui_set_layout (DISASSEM_DATA_COMMAND, layout_def->regs_display_type);
572     }
573 }
574 
575 
576 static void
tui_toggle_layout_command(char * arg,int from_tty)577 tui_toggle_layout_command (char *arg, int from_tty)
578 {
579   struct tui_layout_def *layout_def = tui_layout_def ();
580 
581   /* Make sure the curses mode is enabled.  */
582   tui_enable ();
583   if (layout_def->display_mode == SRC_WIN)
584     layout_def->display_mode = DISASSEM_WIN;
585   else
586     layout_def->display_mode = SRC_WIN;
587 
588   if (!layout_def->split)
589     tui_handle_xdb_layout (layout_def);
590 }
591 
592 
593 static void
tui_toggle_split_layout_command(char * arg,int from_tty)594 tui_toggle_split_layout_command (char *arg, int from_tty)
595 {
596   struct tui_layout_def *layout_def = tui_layout_def ();
597 
598   /* Make sure the curses mode is enabled.  */
599   tui_enable ();
600   layout_def->split = (!layout_def->split);
601   tui_handle_xdb_layout (layout_def);
602 }
603 
604 
605 static void
tui_layout_command(char * arg,int from_tty)606 tui_layout_command (char *arg, int from_tty)
607 {
608   /* Make sure the curses mode is enabled.  */
609   tui_enable ();
610 
611   /* Switch to the selected layout.  */
612   if (tui_set_layout_for_display_command (arg) != TUI_SUCCESS)
613     warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
614 
615 }
616 
617 /* Answer the previous layout to cycle to.  */
618 static enum tui_layout_type
next_layout(void)619 next_layout (void)
620 {
621   enum tui_layout_type new_layout;
622 
623   new_layout = tui_current_layout ();
624   if (new_layout == UNDEFINED_LAYOUT)
625     new_layout = SRC_COMMAND;
626   else
627     {
628       new_layout++;
629       if (new_layout == UNDEFINED_LAYOUT)
630           new_layout = SRC_COMMAND;
631     }
632 
633   return new_layout;
634 }
635 
636 
637 /* Answer the next layout to cycle to.  */
638 static enum tui_layout_type
prev_layout(void)639 prev_layout (void)
640 {
641   enum tui_layout_type new_layout;
642 
643   new_layout = tui_current_layout ();
644   if (new_layout == SRC_COMMAND)
645     new_layout = DISASSEM_DATA_COMMAND;
646   else
647     {
648       new_layout--;
649       if (new_layout == UNDEFINED_LAYOUT)
650           new_layout = DISASSEM_DATA_COMMAND;
651     }
652 
653   return new_layout;
654 }
655 
656 
657 
658 static void
make_command_window(struct tui_win_info ** win_info_ptr,int height,int origin_y)659 make_command_window (struct tui_win_info **win_info_ptr,
660                          int height, int origin_y)
661 {
662   *win_info_ptr = init_and_make_win (*win_info_ptr,
663                                              CMD_WIN,
664                                              height,
665                                              tui_term_width (),
666                                              0,
667                                              origin_y,
668                                              DONT_BOX_WINDOW);
669 
670   (*win_info_ptr)->can_highlight = FALSE;
671 }
672 
673 
674 /* make_source_window().
675  */
676 static void
make_source_window(struct tui_win_info ** win_info_ptr,int height,int origin_y)677 make_source_window (struct tui_win_info **win_info_ptr,
678                         int height, int origin_y)
679 {
680   make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
681 
682   return;
683 }                                       /* make_source_window */
684 
685 
686 /* make_disasm_window().
687  */
688 static void
make_disasm_window(struct tui_win_info ** win_info_ptr,int height,int origin_y)689 make_disasm_window (struct tui_win_info **win_info_ptr,
690                         int height, int origin_y)
691 {
692   make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
693 
694   return;
695 }                                       /* make_disasm_window */
696 
697 
698 static void
make_data_window(struct tui_win_info ** win_info_ptr,int height,int origin_y)699 make_data_window (struct tui_win_info **win_info_ptr,
700                       int height, int origin_y)
701 {
702   *win_info_ptr = init_and_make_win (*win_info_ptr,
703                                              DATA_WIN,
704                                              height,
705                                              tui_term_width (),
706                                              0,
707                                              origin_y,
708                                              BOX_WINDOW);
709 }
710 
711 
712 
713 /* Show the Source/Command layout.  */
714 static void
show_source_command(void)715 show_source_command (void)
716 {
717   show_source_or_disasm_and_command (SRC_COMMAND);
718 }
719 
720 
721 /* Show the Dissassem/Command layout.  */
722 static void
show_disasm_command(void)723 show_disasm_command (void)
724 {
725   show_source_or_disasm_and_command (DISASSEM_COMMAND);
726 }
727 
728 
729 /* Show the Source/Disassem/Command layout.  */
730 static void
show_source_disasm_command(void)731 show_source_disasm_command (void)
732 {
733   if (tui_current_layout () != SRC_DISASSEM_COMMAND)
734     {
735       int cmd_height, src_height, asm_height;
736 
737       if (TUI_CMD_WIN != NULL)
738           cmd_height = TUI_CMD_WIN->generic.height;
739       else
740           cmd_height = tui_term_height () / 3;
741 
742       src_height = (tui_term_height () - cmd_height) / 2;
743       asm_height = tui_term_height () - (src_height + cmd_height);
744 
745       if (TUI_SRC_WIN == NULL)
746           make_source_window (&TUI_SRC_WIN, src_height, 0);
747       else
748           {
749             init_gen_win_info (&TUI_SRC_WIN->generic,
750                                    TUI_SRC_WIN->generic.type,
751                                    src_height,
752                                    TUI_SRC_WIN->generic.width,
753                                    TUI_SRC_WIN->detail.source_info.execution_info->width,
754                                    0);
755             TUI_SRC_WIN->can_highlight = TRUE;
756             init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
757                                    EXEC_INFO_WIN,
758                                    src_height,
759                                    3,
760                                    0,
761                                    0);
762             tui_make_visible (&TUI_SRC_WIN->generic);
763             tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
764             TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
765           }
766       if (TUI_SRC_WIN != NULL)
767           {
768             struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
769 
770             tui_show_source_content (TUI_SRC_WIN);
771             if (TUI_DISASM_WIN == NULL)
772               {
773                 make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
774                 locator = init_and_make_win (locator,
775                                                      LOCATOR_WIN,
776                                                      2 /* 1 */ ,
777                                                      tui_term_width (),
778                                                      0,
779                                                      (src_height + asm_height) - 1,
780                                                      DONT_BOX_WINDOW);
781               }
782             else
783               {
784                 init_gen_win_info (locator,
785                                          LOCATOR_WIN,
786                                          2 /* 1 */ ,
787                                          tui_term_width (),
788                                          0,
789                                          (src_height + asm_height) - 1);
790                 TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
791                 init_gen_win_info (&TUI_DISASM_WIN->generic,
792                                          TUI_DISASM_WIN->generic.type,
793                                          asm_height,
794                                          TUI_DISASM_WIN->generic.width,
795                                          TUI_DISASM_WIN->detail.source_info.execution_info->width,
796                                          src_height - 1);
797                 init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
798                                          EXEC_INFO_WIN,
799                                          asm_height,
800                                          3,
801                                          0,
802                                          src_height - 1);
803                 TUI_DISASM_WIN->can_highlight = TRUE;
804                 tui_make_visible (&TUI_DISASM_WIN->generic);
805                 tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
806               }
807             if (TUI_DISASM_WIN != NULL)
808               {
809                 TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
810                 TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
811                 tui_make_visible (locator);
812                 tui_show_locator_content ();
813                 tui_show_source_content (TUI_DISASM_WIN);
814 
815                 if (TUI_CMD_WIN == NULL)
816                     make_command_window (&TUI_CMD_WIN,
817                                              cmd_height,
818                                              tui_term_height () - cmd_height);
819                 else
820                     {
821                       init_gen_win_info (&TUI_CMD_WIN->generic,
822                                              TUI_CMD_WIN->generic.type,
823                                              TUI_CMD_WIN->generic.height,
824                                              TUI_CMD_WIN->generic.width,
825                                              0,
826                                              TUI_CMD_WIN->generic.origin.y);
827                       TUI_CMD_WIN->can_highlight = FALSE;
828                       tui_make_visible (&TUI_CMD_WIN->generic);
829                     }
830                 if (TUI_CMD_WIN != NULL)
831                     tui_refresh_win (&TUI_CMD_WIN->generic);
832               }
833           }
834       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
835     }
836 }
837 
838 
839 /* Show the Source/Data/Command or the Dissassembly/Data/Command
840    layout.  */
841 static void
show_data(enum tui_layout_type new_layout)842 show_data (enum tui_layout_type new_layout)
843 {
844   int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
845   int src_height, data_height;
846   enum tui_win_type win_type;
847   struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
848 
849 
850   data_height = total_height / 2;
851   src_height = total_height - data_height;
852   tui_make_all_invisible ();
853   tui_make_invisible (locator);
854   make_data_window (&TUI_DATA_WIN, data_height, 0);
855   TUI_DATA_WIN->can_highlight = TRUE;
856   if (new_layout == SRC_DATA_COMMAND)
857     win_type = SRC_WIN;
858   else
859     win_type = DISASSEM_WIN;
860   if (tui_win_list[win_type] == NULL)
861     {
862       if (win_type == SRC_WIN)
863           make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
864       else
865           make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
866       locator = init_and_make_win (locator,
867                                            LOCATOR_WIN,
868                                            2 /* 1 */ ,
869                                            tui_term_width (),
870                                            0,
871                                            total_height - 1,
872                                            DONT_BOX_WINDOW);
873     }
874   else
875     {
876       init_gen_win_info (&tui_win_list[win_type]->generic,
877                                tui_win_list[win_type]->generic.type,
878                                src_height,
879                                tui_win_list[win_type]->generic.width,
880                                tui_win_list[win_type]->detail.source_info.execution_info->width,
881                                data_height - 1);
882       init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
883                                EXEC_INFO_WIN,
884                                src_height,
885                                3,
886                                0,
887                                data_height - 1);
888       tui_make_visible (&tui_win_list[win_type]->generic);
889       tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
890       init_gen_win_info (locator,
891                                LOCATOR_WIN,
892                                2 /* 1 */ ,
893                                tui_term_width (),
894                                0,
895                                total_height - 1);
896     }
897   tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
898   tui_make_visible (locator);
899   tui_show_locator_content ();
900   tui_add_to_source_windows (tui_win_list[win_type]);
901   tui_set_current_layout_to (new_layout);
902 }
903 
904 /* init_gen_win_info().
905  */
906 static void
init_gen_win_info(struct tui_gen_win_info * win_info,enum tui_win_type type,int height,int width,int origin_x,int origin_y)907 init_gen_win_info (struct tui_gen_win_info *win_info,
908                        enum tui_win_type type,
909                        int height, int width,
910                        int origin_x, int origin_y)
911 {
912   int h = height;
913 
914   win_info->type = type;
915   win_info->width = width;
916   win_info->height = h;
917   if (h > 1)
918     {
919       win_info->viewport_height = h - 1;
920       if (win_info->type != CMD_WIN)
921           win_info->viewport_height--;
922     }
923   else
924     win_info->viewport_height = 1;
925   win_info->origin.x = origin_x;
926   win_info->origin.y = origin_y;
927 
928   return;
929 }                                       /* init_gen_win_info */
930 
931 /* init_and_make_win().
932  */
933 static void *
init_and_make_win(void * opaque_win_info,enum tui_win_type win_type,int height,int width,int origin_x,int origin_y,int box_it)934 init_and_make_win (void *opaque_win_info,
935                        enum tui_win_type win_type,
936                        int height, int width,
937                        int origin_x, int origin_y,
938                        int box_it)
939 {
940   struct tui_gen_win_info *generic;
941 
942   if (opaque_win_info == NULL)
943     {
944       if (tui_win_is_auxillary (win_type))
945           opaque_win_info = (void *) tui_alloc_generic_win_info ();
946       else
947           opaque_win_info = (void *) tui_alloc_win_info (win_type);
948     }
949   if (tui_win_is_auxillary (win_type))
950     generic = (struct tui_gen_win_info *) opaque_win_info;
951   else
952     generic = &((struct tui_win_info *) opaque_win_info)->generic;
953 
954   if (opaque_win_info != NULL)
955     {
956       init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
957       if (!tui_win_is_auxillary (win_type))
958           {
959             if (generic->type == CMD_WIN)
960               ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
961             else
962               ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
963           }
964       tui_make_window (generic, box_it);
965     }
966   return opaque_win_info;
967 }
968 
969 
970 static void
make_source_or_disasm_window(struct tui_win_info ** win_info_ptr,enum tui_win_type type,int height,int origin_y)971 make_source_or_disasm_window (struct tui_win_info **win_info_ptr,
972                                     enum tui_win_type type,
973                                     int height, int origin_y)
974 {
975   struct tui_gen_win_info *execution_info = (struct tui_gen_win_info *) NULL;
976 
977   /* Create the exeuction info window.  */
978   if (type == SRC_WIN)
979     execution_info = tui_source_exec_info_win_ptr ();
980   else
981     execution_info = tui_disassem_exec_info_win_ptr ();
982   execution_info = init_and_make_win (execution_info,
983                                               EXEC_INFO_WIN,
984                                               height,
985                                               3,
986                                               0,
987                                               origin_y,
988                                               DONT_BOX_WINDOW);
989 
990   /* Now create the source window.  */
991   *win_info_ptr = init_and_make_win (*win_info_ptr,
992                                              type,
993                                              height,
994                                              tui_term_width () - execution_info->width,
995                                              execution_info->width,
996                                              origin_y,
997                                              BOX_WINDOW);
998 
999   (*win_info_ptr)->detail.source_info.execution_info = execution_info;
1000 }
1001 
1002 
1003 /* Show the Source/Command or the Disassem layout.  */
1004 static void
show_source_or_disasm_and_command(enum tui_layout_type layout_type)1005 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
1006 {
1007   if (tui_current_layout () != layout_type)
1008     {
1009       struct tui_win_info **win_info_ptr;
1010       int src_height, cmd_height;
1011       struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
1012 
1013       if (TUI_CMD_WIN != NULL)
1014           cmd_height = TUI_CMD_WIN->generic.height;
1015       else
1016           cmd_height = tui_term_height () / 3;
1017       src_height = tui_term_height () - cmd_height;
1018 
1019       if (layout_type == SRC_COMMAND)
1020           win_info_ptr = &TUI_SRC_WIN;
1021       else
1022           win_info_ptr = &TUI_DISASM_WIN;
1023 
1024       if ((*win_info_ptr) == NULL)
1025           {
1026             if (layout_type == SRC_COMMAND)
1027               make_source_window (win_info_ptr, src_height - 1, 0);
1028             else
1029               make_disasm_window (win_info_ptr, src_height - 1, 0);
1030             locator = init_and_make_win (locator,
1031                                                LOCATOR_WIN,
1032                                                2 /* 1 */ ,
1033                                                tui_term_width (),
1034                                                0,
1035                                                src_height - 1,
1036                                                DONT_BOX_WINDOW);
1037           }
1038       else
1039           {
1040             init_gen_win_info (locator,
1041                                    LOCATOR_WIN,
1042                                    2 /* 1 */ ,
1043                                    tui_term_width (),
1044                                    0,
1045                                    src_height - 1);
1046             (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1047             init_gen_win_info (&(*win_info_ptr)->generic,
1048                                    (*win_info_ptr)->generic.type,
1049                                    src_height - 1,
1050                                    (*win_info_ptr)->generic.width,
1051                                    (*win_info_ptr)->detail.source_info.execution_info->width,
1052                                    0);
1053             init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
1054                                    EXEC_INFO_WIN,
1055                                    src_height - 1,
1056                                    3,
1057                                    0,
1058                                    0);
1059             (*win_info_ptr)->can_highlight = TRUE;
1060             tui_make_visible (&(*win_info_ptr)->generic);
1061             tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
1062           }
1063       if ((*win_info_ptr) != NULL)
1064           {
1065             (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1066             tui_make_visible (locator);
1067             tui_show_locator_content ();
1068             tui_show_source_content (*win_info_ptr);
1069 
1070             if (TUI_CMD_WIN == NULL)
1071               {
1072                 make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
1073                 tui_refresh_win (&TUI_CMD_WIN->generic);
1074               }
1075             else
1076               {
1077                 init_gen_win_info (&TUI_CMD_WIN->generic,
1078                                          TUI_CMD_WIN->generic.type,
1079                                          TUI_CMD_WIN->generic.height,
1080                                          TUI_CMD_WIN->generic.width,
1081                                          TUI_CMD_WIN->generic.origin.x,
1082                                          TUI_CMD_WIN->generic.origin.y);
1083                 TUI_CMD_WIN->can_highlight = FALSE;
1084                 tui_make_visible (&TUI_CMD_WIN->generic);
1085               }
1086           }
1087       tui_set_current_layout_to (layout_type);
1088     }
1089 }
1090