Commit | Line | Data |
---|---|---|
f377b406 | 1 | /* TUI layout window management. |
f33c6cbf | 2 | |
b811d2c2 | 3 | Copyright (C) 1998-2020 Free Software Foundation, Inc. |
f33c6cbf | 4 | |
f377b406 | 5 | Contributed by Hewlett-Packard Company. |
c906108c | 6 | |
f377b406 SC |
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 | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
f377b406 SC |
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 | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
957b8b5a | 23 | #include "arch-utils.h" |
c906108c SS |
24 | #include "command.h" |
25 | #include "symtab.h" | |
26 | #include "frame.h" | |
52575520 | 27 | #include "source.h" |
84b1e7c7 | 28 | #include <ctype.h> |
c906108c | 29 | |
d7b2e967 | 30 | #include "tui/tui.h" |
ce38393b | 31 | #include "tui/tui-command.h" |
d7b2e967 | 32 | #include "tui/tui-data.h" |
d7b2e967 AC |
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" | |
2c0b251b | 39 | #include "tui/tui-layout.h" |
bfad4537 | 40 | #include "tui/tui-source.h" |
6a83354a | 41 | #include "gdb_curses.h" |
96ec9981 | 42 | |
6ba8e26f | 43 | static void show_layout (enum tui_layout_type); |
6ba8e26f AC |
44 | static enum tui_layout_type next_layout (void); |
45 | static enum tui_layout_type prev_layout (void); | |
0b39b52e | 46 | static void tui_layout_command (const char *, int); |
13274fc3 | 47 | static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *); |
c906108c SS |
48 | |
49 | ||
2192a9d3 TT |
50 | /* The pre-defined layouts. */ |
51 | static tui_layout_split *standard_layouts[UNDEFINED_LAYOUT]; | |
52 | ||
53 | /* The layout that is currently applied. */ | |
54 | static std::unique_ptr<tui_layout_base> applied_layout; | |
55 | ||
62cf57fe TT |
56 | static enum tui_layout_type current_layout = UNDEFINED_LAYOUT; |
57 | ||
58 | /* Accessor for the current layout. */ | |
59 | enum tui_layout_type | |
60 | tui_current_layout (void) | |
61 | { | |
62 | return current_layout; | |
63 | } | |
64 | ||
2192a9d3 TT |
65 | /* See tui-layout.h. */ |
66 | ||
67 | void | |
68 | tui_apply_current_layout () | |
69 | { | |
70 | applied_layout->apply (0, 0, tui_term_width (), tui_term_height ()); | |
71 | } | |
c906108c | 72 | |
d4eeccfe TT |
73 | /* See tui-layout. */ |
74 | ||
75 | void | |
76 | tui_adjust_window_height (struct tui_win_info *win, int new_height) | |
77 | { | |
78 | applied_layout->adjust_size (win->name (), new_height); | |
79 | } | |
80 | ||
c7037be1 SC |
81 | /* Show the screen layout defined. */ |
82 | static void | |
6ba8e26f | 83 | show_layout (enum tui_layout_type layout) |
c906108c | 84 | { |
6ba8e26f | 85 | enum tui_layout_type cur_layout = tui_current_layout (); |
c906108c | 86 | |
6ba8e26f | 87 | if (layout != cur_layout) |
c906108c | 88 | { |
3f3ffe54 | 89 | tui_make_all_invisible (); |
2192a9d3 TT |
90 | applied_layout = standard_layouts[layout]->clone (); |
91 | tui_apply_current_layout (); | |
ed2c82c3 | 92 | current_layout = layout; |
fede5273 | 93 | tui_delete_invisible_windows (); |
c906108c | 94 | } |
bc712bbf | 95 | } |
c906108c SS |
96 | |
97 | ||
080ce8c0 | 98 | /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND, |
7bd0be3a | 99 | SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND. */ |
b7fbad91 | 100 | void |
7bd0be3a | 101 | tui_set_layout (enum tui_layout_type layout_type) |
c906108c | 102 | { |
b7fbad91 | 103 | gdb_assert (layout_type != UNDEFINED_LAYOUT); |
c906108c | 104 | |
b7fbad91 TT |
105 | enum tui_layout_type cur_layout = tui_current_layout (); |
106 | struct gdbarch *gdbarch; | |
107 | CORE_ADDR addr; | |
108 | struct tui_win_info *win_with_focus = tui_win_with_focus (); | |
c906108c | 109 | |
b7fbad91 | 110 | extract_display_start_addr (&gdbarch, &addr); |
c906108c | 111 | |
b7fbad91 | 112 | enum tui_layout_type new_layout = layout_type; |
c906108c | 113 | |
b7fbad91 TT |
114 | if (new_layout != cur_layout) |
115 | { | |
116 | show_layout (new_layout); | |
ef5eab5a | 117 | |
b7fbad91 TT |
118 | /* Now determine where focus should be. */ |
119 | if (win_with_focus != TUI_CMD_WIN) | |
120 | { | |
121 | switch (new_layout) | |
7bd0be3a | 122 | { |
b7fbad91 TT |
123 | case SRC_COMMAND: |
124 | tui_set_win_focus_to (TUI_SRC_WIN); | |
b7fbad91 TT |
125 | break; |
126 | case DISASSEM_COMMAND: | |
127 | /* The previous layout was not showing code. | |
128 | This can happen if there is no source | |
129 | available: | |
130 | ||
131 | 1. if the source file is in another dir OR | |
132 | 2. if target was compiled without -g | |
133 | We still want to show the assembly though! */ | |
134 | ||
135 | tui_get_begin_asm_address (&gdbarch, &addr); | |
136 | tui_set_win_focus_to (TUI_DISASM_WIN); | |
b7fbad91 TT |
137 | break; |
138 | case SRC_DISASSEM_COMMAND: | |
139 | /* The previous layout was not showing code. | |
140 | This can happen if there is no source | |
141 | available: | |
142 | ||
143 | 1. if the source file is in another dir OR | |
144 | 2. if target was compiled without -g | |
145 | We still want to show the assembly though! */ | |
146 | ||
147 | tui_get_begin_asm_address (&gdbarch, &addr); | |
148 | if (win_with_focus == TUI_SRC_WIN) | |
149 | tui_set_win_focus_to (TUI_SRC_WIN); | |
150 | else | |
151 | tui_set_win_focus_to (TUI_DISASM_WIN); | |
152 | break; | |
153 | case SRC_DATA_COMMAND: | |
154 | if (win_with_focus != TUI_DATA_WIN) | |
155 | tui_set_win_focus_to (TUI_SRC_WIN); | |
156 | else | |
157 | tui_set_win_focus_to (TUI_DATA_WIN); | |
b7fbad91 TT |
158 | break; |
159 | case DISASSEM_DATA_COMMAND: | |
160 | /* The previous layout was not showing code. | |
161 | This can happen if there is no source | |
162 | available: | |
163 | ||
164 | 1. if the source file is in another dir OR | |
165 | 2. if target was compiled without -g | |
166 | We still want to show the assembly though! */ | |
167 | ||
168 | tui_get_begin_asm_address (&gdbarch, &addr); | |
169 | if (win_with_focus != TUI_DATA_WIN) | |
170 | tui_set_win_focus_to (TUI_DISASM_WIN); | |
171 | else | |
172 | tui_set_win_focus_to (TUI_DATA_WIN); | |
b7fbad91 TT |
173 | break; |
174 | default: | |
175 | break; | |
c906108c | 176 | } |
c906108c | 177 | } |
b7fbad91 TT |
178 | /* |
179 | * Now update the window content. | |
180 | */ | |
181 | tui_update_source_windows_with_addr (gdbarch, addr); | |
182 | if (new_layout == SRC_DATA_COMMAND | |
183 | || new_layout == DISASSEM_DATA_COMMAND) | |
89df7f90 | 184 | TUI_DATA_WIN->show_registers (TUI_DATA_WIN->get_current_group ()); |
c906108c | 185 | } |
bc712bbf | 186 | } |
c906108c | 187 | |
080ce8c0 AC |
188 | /* Add the specified window to the layout in a logical way. This |
189 | means setting up the most logical layout given the window to be | |
190 | added. */ | |
c906108c | 191 | void |
080ce8c0 | 192 | tui_add_win_to_layout (enum tui_win_type type) |
c906108c | 193 | { |
6ba8e26f | 194 | enum tui_layout_type cur_layout = tui_current_layout (); |
c906108c SS |
195 | |
196 | switch (type) | |
197 | { | |
198 | case SRC_WIN: | |
e5908723 MS |
199 | if (cur_layout != SRC_COMMAND |
200 | && cur_layout != SRC_DISASSEM_COMMAND | |
201 | && cur_layout != SRC_DATA_COMMAND) | |
c906108c | 202 | { |
6ba8e26f | 203 | if (cur_layout == DISASSEM_DATA_COMMAND) |
f2302a34 | 204 | tui_set_layout (SRC_DATA_COMMAND); |
c906108c | 205 | else |
f2302a34 | 206 | tui_set_layout (SRC_COMMAND); |
c906108c SS |
207 | } |
208 | break; | |
209 | case DISASSEM_WIN: | |
e5908723 MS |
210 | if (cur_layout != DISASSEM_COMMAND |
211 | && cur_layout != SRC_DISASSEM_COMMAND | |
212 | && cur_layout != DISASSEM_DATA_COMMAND) | |
c906108c | 213 | { |
6ba8e26f | 214 | if (cur_layout == SRC_DATA_COMMAND) |
f2302a34 | 215 | tui_set_layout (DISASSEM_DATA_COMMAND); |
c906108c | 216 | else |
f2302a34 | 217 | tui_set_layout (DISASSEM_COMMAND); |
c906108c SS |
218 | } |
219 | break; | |
220 | case DATA_WIN: | |
e5908723 MS |
221 | if (cur_layout != SRC_DATA_COMMAND |
222 | && cur_layout != DISASSEM_DATA_COMMAND) | |
c906108c | 223 | { |
6ba8e26f | 224 | if (cur_layout == DISASSEM_COMMAND) |
f2302a34 | 225 | tui_set_layout (DISASSEM_DATA_COMMAND); |
c906108c | 226 | else |
f2302a34 | 227 | tui_set_layout (SRC_DATA_COMMAND); |
c906108c SS |
228 | } |
229 | break; | |
230 | default: | |
231 | break; | |
232 | } | |
6ba8e26f | 233 | } |
c906108c | 234 | |
a0145030 AB |
235 | /* Complete possible layout names. TEXT is the complete text entered so |
236 | far, WORD is the word currently being completed. */ | |
237 | ||
eb3ff9a5 | 238 | static void |
a0145030 | 239 | layout_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 240 | completion_tracker &tracker, |
a0145030 AB |
241 | const char *text, const char *word) |
242 | { | |
243 | static const char *layout_names [] = | |
244 | { "src", "asm", "split", "regs", "next", "prev", NULL }; | |
245 | ||
eb3ff9a5 | 246 | complete_on_enum (tracker, layout_names, text, word); |
a0145030 AB |
247 | } |
248 | ||
7bd0be3a AB |
249 | /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, or |
250 | REGS. */ | |
0379b883 TT |
251 | static void |
252 | tui_layout_command (const char *layout_name, int from_tty) | |
c906108c | 253 | { |
0379b883 TT |
254 | enum tui_layout_type new_layout = UNDEFINED_LAYOUT; |
255 | enum tui_layout_type cur_layout = tui_current_layout (); | |
c906108c | 256 | |
78e8cb91 | 257 | if (layout_name == NULL || *layout_name == '\0') |
0379b883 | 258 | error (_("Usage: layout prev | next | LAYOUT-NAME")); |
c906108c | 259 | |
0379b883 | 260 | /* First check for ambiguous input. */ |
78e8cb91 | 261 | if (strcmp (layout_name, "s") == 0) |
0379b883 | 262 | error (_("Ambiguous command input.")); |
c906108c | 263 | |
78e8cb91 | 264 | if (subset_compare (layout_name, "src")) |
0379b883 | 265 | new_layout = SRC_COMMAND; |
78e8cb91 | 266 | else if (subset_compare (layout_name, "asm")) |
0379b883 | 267 | new_layout = DISASSEM_COMMAND; |
78e8cb91 | 268 | else if (subset_compare (layout_name, "split")) |
0379b883 | 269 | new_layout = SRC_DISASSEM_COMMAND; |
78e8cb91 | 270 | else if (subset_compare (layout_name, "regs")) |
0379b883 TT |
271 | { |
272 | if (cur_layout == SRC_COMMAND | |
273 | || cur_layout == SRC_DATA_COMMAND) | |
274 | new_layout = SRC_DATA_COMMAND; | |
275 | else | |
276 | new_layout = DISASSEM_DATA_COMMAND; | |
c906108c | 277 | } |
78e8cb91 | 278 | else if (subset_compare (layout_name, "next")) |
0379b883 | 279 | new_layout = next_layout (); |
78e8cb91 | 280 | else if (subset_compare (layout_name, "prev")) |
0379b883 | 281 | new_layout = prev_layout (); |
c906108c | 282 | else |
0379b883 | 283 | error (_("Unrecognized layout: %s"), layout_name); |
c906108c | 284 | |
0379b883 TT |
285 | /* Make sure the curses mode is enabled. */ |
286 | tui_enable (); | |
287 | tui_set_layout (new_layout); | |
e8b915dc | 288 | } |
c906108c SS |
289 | |
290 | ||
13274fc3 UW |
291 | static void |
292 | extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p) | |
c906108c | 293 | { |
6ba8e26f | 294 | enum tui_layout_type cur_layout = tui_current_layout (); |
957b8b5a | 295 | struct gdbarch *gdbarch = get_current_arch (); |
c774cec6 | 296 | CORE_ADDR addr; |
84b1e7c7 | 297 | CORE_ADDR pc; |
52575520 | 298 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); |
c906108c | 299 | |
6ba8e26f | 300 | switch (cur_layout) |
c906108c SS |
301 | { |
302 | case SRC_COMMAND: | |
303 | case SRC_DATA_COMMAND: | |
e6e41501 | 304 | gdbarch = TUI_SRC_WIN->gdbarch; |
52575520 | 305 | find_line_pc (cursal.symtab, |
e6e41501 | 306 | TUI_SRC_WIN->start_line_or_addr.u.line_no, |
84b1e7c7 | 307 | &pc); |
c774cec6 | 308 | addr = pc; |
c906108c SS |
309 | break; |
310 | case DISASSEM_COMMAND: | |
311 | case SRC_DISASSEM_COMMAND: | |
312 | case DISASSEM_DATA_COMMAND: | |
e6e41501 TT |
313 | gdbarch = TUI_DISASM_WIN->gdbarch; |
314 | addr = TUI_DISASM_WIN->start_line_or_addr.u.addr; | |
c906108c SS |
315 | break; |
316 | default: | |
c774cec6 | 317 | addr = 0; |
c906108c SS |
318 | break; |
319 | } | |
320 | ||
13274fc3 UW |
321 | *gdbarch_p = gdbarch; |
322 | *addr_p = addr; | |
6ba8e26f | 323 | } |
c906108c SS |
324 | |
325 | ||
6ba8e26f | 326 | /* Answer the previous layout to cycle to. */ |
2a8854a7 | 327 | static enum tui_layout_type |
6ba8e26f | 328 | next_layout (void) |
c906108c | 329 | { |
570dc176 | 330 | int new_layout; |
c906108c | 331 | |
6ba8e26f AC |
332 | new_layout = tui_current_layout (); |
333 | if (new_layout == UNDEFINED_LAYOUT) | |
334 | new_layout = SRC_COMMAND; | |
c906108c SS |
335 | else |
336 | { | |
6ba8e26f AC |
337 | new_layout++; |
338 | if (new_layout == UNDEFINED_LAYOUT) | |
339 | new_layout = SRC_COMMAND; | |
c906108c SS |
340 | } |
341 | ||
570dc176 | 342 | return (enum tui_layout_type) new_layout; |
6ba8e26f | 343 | } |
c906108c SS |
344 | |
345 | ||
6ba8e26f | 346 | /* Answer the next layout to cycle to. */ |
2a8854a7 | 347 | static enum tui_layout_type |
6ba8e26f | 348 | prev_layout (void) |
c906108c | 349 | { |
570dc176 | 350 | int new_layout; |
c906108c | 351 | |
6ba8e26f AC |
352 | new_layout = tui_current_layout (); |
353 | if (new_layout == SRC_COMMAND) | |
354 | new_layout = DISASSEM_DATA_COMMAND; | |
c906108c SS |
355 | else |
356 | { | |
6ba8e26f AC |
357 | new_layout--; |
358 | if (new_layout == UNDEFINED_LAYOUT) | |
359 | new_layout = DISASSEM_DATA_COMMAND; | |
c906108c SS |
360 | } |
361 | ||
570dc176 | 362 | return (enum tui_layout_type) new_layout; |
6ba8e26f | 363 | } |
c906108c | 364 | |
d6ba6a11 | 365 | void |
ee556432 TT |
366 | tui_gen_win_info::resize (int height_, int width_, |
367 | int origin_x_, int origin_y_) | |
c906108c | 368 | { |
cdaa6eb4 | 369 | if (width == width_ && height == height_ |
fb3184d8 | 370 | && x == origin_x_ && y == origin_y_ |
cdaa6eb4 TT |
371 | && handle != nullptr) |
372 | return; | |
373 | ||
d6ba6a11 | 374 | width = width_; |
db502012 | 375 | height = height_; |
fb3184d8 TT |
376 | x = origin_x_; |
377 | y = origin_y_; | |
db502012 TT |
378 | |
379 | if (handle != nullptr) | |
380 | { | |
381 | #ifdef HAVE_WRESIZE | |
7523da63 | 382 | wresize (handle.get (), height, width); |
fb3184d8 | 383 | mvwin (handle.get (), y, x); |
7523da63 | 384 | wmove (handle.get (), 0, 0); |
db502012 | 385 | #else |
7523da63 | 386 | handle.reset (nullptr); |
db502012 TT |
387 | #endif |
388 | } | |
389 | ||
390 | if (handle == nullptr) | |
ab0e1f1a | 391 | make_window (); |
3df505f6 TT |
392 | |
393 | rerender (); | |
d6ba6a11 | 394 | } |
c906108c | 395 | |
d9fcefd5 TT |
396 | \f |
397 | ||
389e7ddb TT |
398 | /* Helper function that returns a TUI window, given its name. */ |
399 | ||
400 | static tui_gen_win_info * | |
401 | tui_get_window_by_name (const std::string &name) | |
402 | { | |
403 | if (name == "src") | |
404 | { | |
405 | if (tui_win_list[SRC_WIN] == nullptr) | |
406 | tui_win_list[SRC_WIN] = new tui_source_window (); | |
407 | return tui_win_list[SRC_WIN]; | |
408 | } | |
409 | else if (name == "cmd") | |
410 | { | |
411 | if (tui_win_list[CMD_WIN] == nullptr) | |
412 | tui_win_list[CMD_WIN] = new tui_cmd_window (); | |
413 | return tui_win_list[CMD_WIN]; | |
414 | } | |
415 | else if (name == "regs") | |
416 | { | |
417 | if (tui_win_list[DATA_WIN] == nullptr) | |
418 | tui_win_list[DATA_WIN] = new tui_data_window (); | |
419 | return tui_win_list[DATA_WIN]; | |
420 | } | |
421 | else if (name == "asm") | |
422 | { | |
423 | if (tui_win_list[DISASSEM_WIN] == nullptr) | |
424 | tui_win_list[DISASSEM_WIN] = new tui_disasm_window (); | |
425 | return tui_win_list[DISASSEM_WIN]; | |
426 | } | |
427 | else | |
428 | { | |
429 | gdb_assert (name == "locator"); | |
430 | return tui_locator_win_info_ptr (); | |
431 | } | |
432 | } | |
433 | ||
434 | /* See tui-layout.h. */ | |
435 | ||
436 | std::unique_ptr<tui_layout_base> | |
437 | tui_layout_window::clone () const | |
438 | { | |
439 | tui_layout_window *result = new tui_layout_window (m_contents.c_str ()); | |
440 | return std::unique_ptr<tui_layout_base> (result); | |
441 | } | |
442 | ||
443 | /* See tui-layout.h. */ | |
444 | ||
445 | void | |
446 | tui_layout_window::apply (int x_, int y_, int width_, int height_) | |
447 | { | |
448 | x = x_; | |
449 | y = y_; | |
450 | width = width_; | |
451 | height = height_; | |
452 | gdb_assert (m_window != nullptr); | |
453 | m_window->resize (height, width, x, y); | |
454 | } | |
455 | ||
456 | /* See tui-layout.h. */ | |
457 | ||
458 | void | |
459 | tui_layout_window::get_sizes (int *min_height, int *max_height) | |
460 | { | |
461 | if (m_window == nullptr) | |
462 | m_window = tui_get_window_by_name (m_contents); | |
463 | *min_height = m_window->min_height (); | |
464 | *max_height = m_window->max_height (); | |
465 | } | |
466 | ||
467 | /* See tui-layout.h. */ | |
468 | ||
469 | bool | |
470 | tui_layout_window::top_boxed_p () const | |
471 | { | |
472 | gdb_assert (m_window != nullptr); | |
473 | return m_window->can_box (); | |
474 | } | |
475 | ||
476 | /* See tui-layout.h. */ | |
477 | ||
478 | bool | |
479 | tui_layout_window::bottom_boxed_p () const | |
480 | { | |
481 | gdb_assert (m_window != nullptr); | |
482 | return m_window->can_box (); | |
483 | } | |
484 | ||
485 | /* See tui-layout.h. */ | |
486 | ||
487 | tui_layout_split * | |
488 | tui_layout_split::add_split (int weight) | |
489 | { | |
490 | tui_layout_split *result = new tui_layout_split (); | |
491 | split s = {weight, std::unique_ptr<tui_layout_base> (result)}; | |
492 | m_splits.push_back (std::move (s)); | |
493 | return result; | |
494 | } | |
495 | ||
496 | /* See tui-layout.h. */ | |
497 | ||
498 | void | |
499 | tui_layout_split::add_window (const char *name, int weight) | |
500 | { | |
501 | tui_layout_window *result = new tui_layout_window (name); | |
502 | split s = {weight, std::unique_ptr<tui_layout_base> (result)}; | |
503 | m_splits.push_back (std::move (s)); | |
504 | } | |
505 | ||
506 | /* See tui-layout.h. */ | |
507 | ||
508 | std::unique_ptr<tui_layout_base> | |
509 | tui_layout_split::clone () const | |
510 | { | |
511 | tui_layout_split *result = new tui_layout_split (); | |
512 | for (const split &item : m_splits) | |
513 | { | |
514 | std::unique_ptr<tui_layout_base> next = item.layout->clone (); | |
515 | split s = {item.weight, std::move (next)}; | |
516 | result->m_splits.push_back (std::move (s)); | |
517 | } | |
518 | return std::unique_ptr<tui_layout_base> (result); | |
519 | } | |
520 | ||
521 | /* See tui-layout.h. */ | |
522 | ||
523 | void | |
524 | tui_layout_split::get_sizes (int *min_height, int *max_height) | |
525 | { | |
526 | *min_height = 0; | |
527 | *max_height = 0; | |
528 | for (const split &item : m_splits) | |
529 | { | |
530 | int new_min, new_max; | |
531 | item.layout->get_sizes (&new_min, &new_max); | |
532 | *min_height += new_min; | |
533 | *max_height += new_max; | |
534 | } | |
535 | } | |
536 | ||
537 | /* See tui-layout.h. */ | |
538 | ||
539 | bool | |
540 | tui_layout_split::top_boxed_p () const | |
541 | { | |
542 | if (m_splits.empty ()) | |
543 | return false; | |
544 | return m_splits[0].layout->top_boxed_p (); | |
545 | } | |
546 | ||
547 | /* See tui-layout.h. */ | |
548 | ||
549 | bool | |
550 | tui_layout_split::bottom_boxed_p () const | |
551 | { | |
552 | if (m_splits.empty ()) | |
553 | return false; | |
554 | return m_splits.back ().layout->top_boxed_p (); | |
555 | } | |
556 | ||
557 | /* See tui-layout.h. */ | |
558 | ||
559 | void | |
560 | tui_layout_split::set_weights_from_heights () | |
561 | { | |
562 | for (int i = 0; i < m_splits.size (); ++i) | |
563 | m_splits[i].weight = m_splits[i].layout->height; | |
564 | } | |
565 | ||
566 | /* See tui-layout.h. */ | |
567 | ||
568 | bool | |
569 | tui_layout_split::adjust_size (const char *name, int new_height) | |
570 | { | |
571 | /* Look through the children. If one is a layout holding the named | |
572 | window, we're done; or if one actually is the named window, | |
573 | update it. */ | |
574 | int found_index = -1; | |
575 | for (int i = 0; i < m_splits.size (); ++i) | |
576 | { | |
577 | if (m_splits[i].layout->adjust_size (name, new_height)) | |
578 | return true; | |
579 | const char *win_name = m_splits[i].layout->get_name (); | |
580 | if (win_name != nullptr && strcmp (name, win_name) == 0) | |
581 | { | |
582 | found_index = i; | |
583 | break; | |
584 | } | |
585 | } | |
586 | ||
587 | if (found_index == -1) | |
588 | return false; | |
589 | if (m_splits[found_index].layout->height == new_height) | |
590 | return true; | |
591 | ||
592 | set_weights_from_heights (); | |
593 | int delta = m_splits[found_index].weight - new_height; | |
594 | m_splits[found_index].weight = new_height; | |
595 | ||
596 | /* Distribute the "delta" over the next window; but if the next | |
597 | window cannot hold it all, keep going until we either find a | |
598 | window that does, or until we loop all the way around. */ | |
599 | for (int i = 0; delta != 0 && i < m_splits.size () - 1; ++i) | |
600 | { | |
601 | int index = (found_index + 1 + i) % m_splits.size (); | |
602 | ||
603 | int new_min, new_max; | |
604 | m_splits[index].layout->get_sizes (&new_min, &new_max); | |
605 | ||
606 | if (delta < 0) | |
607 | { | |
608 | /* The primary window grew, so we are trying to shrink other | |
609 | windows. */ | |
610 | int available = m_splits[index].weight - new_min; | |
611 | int shrink_by = std::min (available, -delta); | |
612 | m_splits[index].weight -= shrink_by; | |
613 | delta += shrink_by; | |
614 | } | |
615 | else | |
616 | { | |
617 | /* The primary window shrank, so we are trying to grow other | |
618 | windows. */ | |
619 | int available = new_max - m_splits[index].weight; | |
620 | int grow_by = std::min (available, delta); | |
621 | m_splits[index].weight += grow_by; | |
622 | delta -= grow_by; | |
623 | } | |
624 | } | |
625 | ||
626 | if (delta != 0) | |
627 | { | |
628 | warning (_("Invalid window height specified")); | |
629 | /* Effectively undo any modifications made here. */ | |
630 | set_weights_from_heights (); | |
631 | } | |
632 | else | |
633 | { | |
634 | /* Simply re-apply the updated layout. */ | |
635 | apply (x, y, width, height); | |
636 | } | |
637 | ||
638 | return true; | |
639 | } | |
640 | ||
641 | /* See tui-layout.h. */ | |
642 | ||
643 | void | |
644 | tui_layout_split::apply (int x_, int y_, int width_, int height_) | |
645 | { | |
646 | x = x_; | |
647 | y = y_; | |
648 | width = width_; | |
649 | height = height_; | |
650 | ||
651 | struct height_info | |
652 | { | |
653 | int height; | |
654 | int min_height; | |
655 | int max_height; | |
656 | /* True if this window will share a box border with the previous | |
657 | window in the list. */ | |
658 | bool share_box; | |
659 | }; | |
660 | ||
661 | std::vector<height_info> info (m_splits.size ()); | |
662 | ||
663 | /* Step 1: Find the min and max height of each sub-layout. | |
664 | Fixed-sized layouts are given their desired height, and then the | |
665 | remaining space is distributed among the remaining windows | |
666 | according to the weights given. */ | |
667 | int available_height = height; | |
668 | int last_index = -1; | |
669 | int total_weight = 0; | |
670 | for (int i = 0; i < m_splits.size (); ++i) | |
671 | { | |
672 | bool cmd_win_already_exists = TUI_CMD_WIN != nullptr; | |
673 | ||
674 | /* Always call get_sizes, to ensure that the window is | |
675 | instantiated. This is a bit gross but less gross than adding | |
676 | special cases for this in other places. */ | |
677 | m_splits[i].layout->get_sizes (&info[i].min_height, &info[i].max_height); | |
678 | ||
679 | if (!m_applied | |
680 | && cmd_win_already_exists | |
681 | && m_splits[i].layout->get_name () != nullptr | |
682 | && strcmp (m_splits[i].layout->get_name (), "cmd") == 0) | |
683 | { | |
684 | /* If this layout has never been applied, then it means the | |
685 | user just changed the layout. In this situation, it's | |
686 | desirable to keep the size of the command window the | |
687 | same. Setting the min and max heights this way ensures | |
688 | that the resizing step, below, does the right thing with | |
689 | this window. */ | |
690 | info[i].min_height = TUI_CMD_WIN->height; | |
691 | info[i].max_height = TUI_CMD_WIN->height; | |
692 | } | |
693 | ||
694 | if (info[i].min_height == info[i].max_height) | |
695 | available_height -= info[i].min_height; | |
696 | else | |
697 | { | |
698 | last_index = i; | |
699 | total_weight += m_splits[i].weight; | |
700 | } | |
701 | ||
702 | /* Two adjacent boxed windows will share a border, making a bit | |
703 | more height available. */ | |
704 | if (i > 0 | |
705 | && m_splits[i - 1].layout->bottom_boxed_p () | |
706 | && m_splits[i].layout->top_boxed_p ()) | |
707 | info[i].share_box = true; | |
708 | } | |
709 | ||
710 | /* Step 2: Compute the height of each sub-layout. Fixed-sized items | |
711 | are given their fixed size, while others are resized according to | |
712 | their weight. */ | |
713 | int used_height = 0; | |
714 | for (int i = 0; i < m_splits.size (); ++i) | |
715 | { | |
716 | /* Compute the height and clamp to the allowable range. */ | |
717 | info[i].height = available_height * m_splits[i].weight / total_weight; | |
718 | if (info[i].height > info[i].max_height) | |
719 | info[i].height = info[i].max_height; | |
720 | if (info[i].height < info[i].min_height) | |
721 | info[i].height = info[i].min_height; | |
722 | /* If there is any leftover height, just redistribute it to the | |
723 | last resizeable window, by dropping it from the allocated | |
724 | height. We could try to be fancier here perhaps, by | |
725 | redistributing this height among all windows, not just the | |
726 | last window. */ | |
727 | if (info[i].min_height != info[i].max_height) | |
728 | { | |
729 | used_height += info[i].height; | |
730 | if (info[i].share_box) | |
731 | --used_height; | |
732 | } | |
733 | } | |
734 | ||
735 | /* Allocate any leftover height. */ | |
736 | if (available_height >= used_height && last_index != -1) | |
737 | info[last_index].height += available_height - used_height; | |
738 | ||
739 | /* Step 3: Resize. */ | |
740 | int height_accum = 0; | |
741 | for (int i = 0; i < m_splits.size (); ++i) | |
742 | { | |
743 | /* If we fall off the bottom, just make allocations overlap. | |
744 | GIGO. */ | |
745 | if (height_accum + info[i].height > height) | |
746 | height_accum = height - info[i].height; | |
747 | else if (info[i].share_box) | |
748 | --height_accum; | |
749 | m_splits[i].layout->apply (x, y + height_accum, width, info[i].height); | |
750 | height_accum += info[i].height; | |
751 | } | |
752 | ||
753 | m_applied = true; | |
754 | } | |
755 | ||
2192a9d3 TT |
756 | static void |
757 | initialize_layouts () | |
758 | { | |
759 | standard_layouts[SRC_COMMAND] = new tui_layout_split (); | |
760 | standard_layouts[SRC_COMMAND]->add_window ("src", 2); | |
761 | standard_layouts[SRC_COMMAND]->add_window ("locator", 0); | |
762 | standard_layouts[SRC_COMMAND]->add_window ("cmd", 1); | |
763 | ||
764 | standard_layouts[DISASSEM_COMMAND] = new tui_layout_split (); | |
765 | standard_layouts[DISASSEM_COMMAND]->add_window ("asm", 2); | |
766 | standard_layouts[DISASSEM_COMMAND]->add_window ("locator", 0); | |
767 | standard_layouts[DISASSEM_COMMAND]->add_window ("cmd", 1); | |
768 | ||
769 | standard_layouts[SRC_DATA_COMMAND] = new tui_layout_split (); | |
770 | standard_layouts[SRC_DATA_COMMAND]->add_window ("regs", 1); | |
771 | standard_layouts[SRC_DATA_COMMAND]->add_window ("src", 1); | |
772 | standard_layouts[SRC_DATA_COMMAND]->add_window ("locator", 0); | |
773 | standard_layouts[SRC_DATA_COMMAND]->add_window ("cmd", 1); | |
774 | ||
775 | standard_layouts[DISASSEM_DATA_COMMAND] = new tui_layout_split (); | |
776 | standard_layouts[DISASSEM_DATA_COMMAND]->add_window ("regs", 1); | |
777 | standard_layouts[DISASSEM_DATA_COMMAND]->add_window ("asm", 1); | |
778 | standard_layouts[DISASSEM_DATA_COMMAND]->add_window ("locator", 0); | |
779 | standard_layouts[DISASSEM_DATA_COMMAND]->add_window ("cmd", 1); | |
780 | ||
781 | standard_layouts[SRC_DISASSEM_COMMAND] = new tui_layout_split (); | |
782 | standard_layouts[SRC_DISASSEM_COMMAND]->add_window ("src", 1); | |
783 | standard_layouts[SRC_DISASSEM_COMMAND]->add_window ("asm", 1); | |
784 | standard_layouts[SRC_DISASSEM_COMMAND]->add_window ("locator", 0); | |
785 | standard_layouts[SRC_DISASSEM_COMMAND]->add_window ("cmd", 1); | |
786 | } | |
787 | ||
389e7ddb TT |
788 | \f |
789 | ||
d9fcefd5 TT |
790 | /* Function to initialize gdb commands, for tui window layout |
791 | manipulation. */ | |
792 | ||
793 | void | |
794 | _initialize_tui_layout (void) | |
795 | { | |
796 | struct cmd_list_element *cmd; | |
797 | ||
798 | cmd = add_com ("layout", class_tui, tui_layout_command, _("\ | |
799 | Change the layout of windows.\n\ | |
800 | Usage: layout prev | next | LAYOUT-NAME\n\ | |
801 | Layout names are:\n\ | |
802 | src : Displays source and command windows.\n\ | |
803 | asm : Displays disassembly and command windows.\n\ | |
804 | split : Displays source, disassembly and command windows.\n\ | |
805 | regs : Displays register window. If existing layout\n\ | |
806 | is source/command or assembly/command, the \n\ | |
807 | register window is displayed. If the\n\ | |
808 | source/assembly/command (split) is displayed, \n\ | |
809 | the register window is displayed with \n\ | |
810 | the window that has current logical focus.")); | |
811 | set_cmd_completer (cmd, layout_completer); | |
2192a9d3 TT |
812 | |
813 | initialize_layouts (); | |
d9fcefd5 | 814 | } |