1 /* TUI data manipulation routines.
3 Copyright (C) 1998-2019 Free Software Foundation, Inc.
5 Contributed by Hewlett-Packard Company.
7 This file is part of GDB.
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.
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.
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/>. */
22 #ifndef TUI_TUI_DATA_H
23 #define TUI_TUI_DATA_H
25 #include "tui/tui.h" /* For enum tui_win_type. */
26 #include "gdb_curses.h" /* For WINDOW. */
28 /* This is a point definition. */
34 /* Generic window information. */
35 struct tui_gen_win_info
39 explicit tui_gen_win_info (enum tui_win_type t)
46 virtual ~tui_gen_win_info ();
48 /* Call to refresh this window. */
49 virtual void refresh_window ();
51 /* Make this window visible or invisible. */
52 virtual void make_visible (bool visible);
54 /* Return the name of this type of window. */
55 virtual const char *name () const
60 /* Reset this window. WIN_TYPE must match the existing type of this
61 window (it is only passed for self-test purposes). The other
62 parameters are used to set the window's size and position. */
63 void reset (enum tui_win_type win_type,
64 int height, int width,
65 int origin_x, int origin_y);
68 WINDOW *handle = nullptr;
70 enum tui_win_type type;
75 /* Origin of window. */
76 struct tui_point origin = {0, 0};
77 /* Can it be used, or is it already used? */
78 int content_in_use = FALSE;
79 /* Viewport height. */
80 int viewport_height = 0;
81 /* Index of last visible line. */
82 int last_visible_line = 0;
83 /* Whether the window is visible or not. */
84 bool is_visible = false;
85 /* Window title to display. */
86 char *title = nullptr;
89 /* Whether or not a window should be drawn with a box. */
96 /* Constant definitions. */
97 #define DEFAULT_TAB_LEN 8
98 #define NO_SRC_STRING "[ No Source Available ]"
99 #define NO_DISASSEM_STRING "[ No Assembly Available ]"
100 #define NO_REGS_STRING "[ Register Values Unavailable ]"
101 #define NO_DATA_STRING "[ No Data Values Displayed ]"
102 #define MAX_CONTENT_COUNT 100
103 #define SRC_NAME "src"
104 #define CMD_NAME "cmd"
105 #define DATA_NAME "regs"
106 #define DISASSEM_NAME "asm"
107 #define TUI_NULL_STR ""
108 #define DEFAULT_HISTORY_COUNT 25
110 #define NO_HILITE FALSE
111 #define WITH_LOCATOR TRUE
112 #define NO_LOCATOR FALSE
113 #define EMPTY_SOURCE_PROMPT TRUE
114 #define NO_EMPTY_SOURCE_PROMPT FALSE
115 #define UNDEFINED_ITEM -1
116 #define MIN_WIN_HEIGHT 3
117 #define MIN_CMD_WIN_HEIGHT 3
119 /* Strings to display in the TUI status line. */
120 #define PROC_PREFIX "In: "
121 #define LINE_PREFIX "L"
122 #define PC_PREFIX "PC: "
123 #define SINGLE_KEY "(SingleKey)"
125 /* Minimum/Maximum length of some fields displayed in the TUI status
127 #define MIN_LINE_WIDTH 4 /* Use at least 4 digits for line
129 #define MIN_PROC_WIDTH 12
130 #define MAX_TARGET_WIDTH 10
131 #define MAX_PID_WIDTH 19
133 /* The kinds of layouts available. */
138 SRC_DISASSEM_COMMAND,
140 DISASSEM_DATA_COMMAND,
144 enum tui_line_or_address_kind
150 /* Structure describing source line or line address. */
151 struct tui_line_or_address
153 enum tui_line_or_address_kind loa;
161 /* Current Layout definition. */
162 struct tui_layout_def
164 enum tui_win_type display_mode;
167 /* Elements in the Source/Disassembly Window. */
168 struct tui_source_element
170 tui_source_element ()
172 line_or_addr.loa = LOA_LINE;
173 line_or_addr.u.line_no = 0;
176 ~tui_source_element ()
181 char *line = nullptr;
182 struct tui_line_or_address line_or_addr;
183 bool is_exec_point = false;
189 # define MAX_LOCATOR_ELEMENT_LEN PATH_MAX
191 # define MAX_LOCATOR_ELEMENT_LEN 1024
194 /* Flags to tell what kind of breakpoint is at current line. */
195 #define TUI_BP_ENABLED 0x01
196 #define TUI_BP_DISABLED 0x02
197 #define TUI_BP_HIT 0x04
198 #define TUI_BP_CONDITIONAL 0x08
199 #define TUI_BP_HARDWARE 0x10
201 /* Position of breakpoint markers in the exec info string. */
202 #define TUI_BP_HIT_POS 0
203 #define TUI_BP_BREAK_POS 1
204 #define TUI_EXEC_POS 2
205 #define TUI_EXECINFO_SIZE 4
207 typedef char tui_exec_info_content[TUI_EXECINFO_SIZE];
209 /* Execution info window class. */
211 struct tui_exec_info_window : public tui_gen_win_info
213 tui_exec_info_window ()
214 : tui_gen_win_info (EXEC_INFO_WIN)
218 ~tui_exec_info_window () override
223 /* Get or allocate contents. */
224 tui_exec_info_content *maybe_allocate_content (int n_elements);
226 /* Return the contents. */
227 const tui_exec_info_content *get_content () const
234 tui_exec_info_content *m_content = nullptr;
237 /* Locator window class. */
239 struct tui_locator_window : public tui_gen_win_info
241 tui_locator_window ()
242 : tui_gen_win_info (LOCATOR_WIN)
248 char full_name[MAX_LOCATOR_ELEMENT_LEN];
249 char proc_name[MAX_LOCATOR_ELEMENT_LEN];
252 /* Architecture associated with code at this location. */
253 struct gdbarch *gdbarch = nullptr;
256 /* A data item window. */
258 struct tui_data_item_window : public tui_gen_win_info
260 tui_data_item_window ()
261 : tui_gen_win_info (DATA_ITEM_WIN)
265 ~tui_data_item_window () override;
267 const char *name = nullptr;
268 /* The register number, or data display number. */
269 int item_no = UNDEFINED_ITEM;
270 void *value = nullptr;
271 bool highlight = false;
272 char *content = nullptr;
275 /* This defines information about each logical window. */
276 struct tui_win_info : public tui_gen_win_info
280 explicit tui_win_info (enum tui_win_type type);
281 DISABLE_COPY_AND_ASSIGN (tui_win_info);
283 /* Scroll the contents vertically. This is only called via
284 forward_scroll and backward_scroll. */
285 virtual void do_scroll_vertical (int num_to_scroll) = 0;
287 /* Scroll the contents horizontally. This is only called via
288 left_scroll and right_scroll. */
289 virtual void do_scroll_horizontal (int num_to_scroll) = 0;
291 /* Called after make_visible_with_new_height sets the new height.
292 Should update the window. */
293 virtual void do_make_visible_with_new_height () = 0;
297 ~tui_win_info () override
301 /* Clear the pertinent detail in the window. */
302 virtual void clear_detail () = 0;
304 /* Return true if this window has the locator. */
305 virtual bool has_locator () const
310 /* Refresh this window and any associated windows. */
311 virtual void refresh ();
313 /* Called after all the TUI windows are refreshed, to let this
314 window have a chance to update itself further. */
315 virtual void refresh_all ()
319 /* Called after a TUI window is given a new height; this updates any
320 related auxiliary windows. */
321 virtual void set_new_height (int height)
325 /* Compute the maximum height of this window. */
326 virtual int max_height () const;
328 /* Called after the tab width has been changed. */
329 virtual void update_tab_width ()
333 /* Make the window visible after the height has been changed. */
334 void make_visible_with_new_height ();
336 /* Set whether this window is highglighted. */
337 void set_highlight (bool highlight)
339 is_highlighted = highlight;
342 /* Methods to scroll the contents of this window. Note that they
343 are named with "_scroll" coming at the end because the more
344 obvious "scroll_forward" is defined as a macro in term.h. */
345 void forward_scroll (int num_to_scroll);
346 void backward_scroll (int num_to_scroll);
347 void left_scroll (int num_to_scroll);
348 void right_scroll (int num_to_scroll);
350 /* Can this window ever be highlighted? */
351 bool can_highlight = true;
353 /* Is this window highlighted? */
354 bool is_highlighted = false;
357 /* The base class for all source-like windows, namely the source and
358 disassembly windows. */
360 struct tui_source_window_base : public tui_win_info
363 explicit tui_source_window_base (enum tui_win_type type);
364 ~tui_source_window_base () override;
365 DISABLE_COPY_AND_ASSIGN (tui_source_window_base);
367 void do_scroll_horizontal (int num_to_scroll) override;
368 void do_make_visible_with_new_height () override;
372 void clear_detail () override;
374 /* Return true if this window has the locator. */
375 bool has_locator () const override
377 return m_has_locator;
380 void make_visible (bool visible) override;
381 void refresh () override;
382 void refresh_all () override;
384 /* Refill the source window's source cache and update it. If this
385 is a disassembly window, then just update it. */
388 /* Set the location of the execution point. */
389 void set_is_exec_point_at (struct tui_line_or_address l);
391 void set_new_height (int height) override;
393 void update_tab_width () override;
395 /* Does the locator belong to this window? */
396 bool m_has_locator = false;
397 /* Execution information window. */
398 struct tui_exec_info_window *execution_info = nullptr;
399 /* Used for horizontal scroll. */
400 int horizontal_offset = 0;
401 struct tui_line_or_address start_line_or_addr;
403 /* It is the resolved form as returned by symtab_to_fullname. */
404 char *fullname = nullptr;
406 /* Architecture associated with code at this location. */
407 struct gdbarch *gdbarch = nullptr;
409 std::vector<tui_source_element> content;
412 /* A TUI source window. */
414 struct tui_source_window : public tui_source_window_base
417 : tui_source_window_base (SRC_WIN)
421 DISABLE_COPY_AND_ASSIGN (tui_source_window);
423 const char *name () const override
430 void do_scroll_vertical (int num_to_scroll) override;
433 /* A TUI disassembly window. */
435 struct tui_disasm_window : public tui_source_window_base
438 : tui_source_window_base (DISASSEM_WIN)
442 DISABLE_COPY_AND_ASSIGN (tui_disasm_window);
444 const char *name () const override
446 return DISASSEM_NAME;
451 void do_scroll_vertical (int num_to_scroll) override;
454 struct tui_data_window : public tui_win_info
457 : tui_win_info (DATA_WIN)
461 DISABLE_COPY_AND_ASSIGN (tui_data_window);
463 void clear_detail () override;
464 void refresh_all () override;
466 void set_new_height (int height) override;
468 void refresh_window () override;
470 const char *name () const override
475 /* Windows that are used to display registers. */
476 std::vector<std::unique_ptr<tui_data_item_window>> regs_content;
477 int regs_column_count = 0;
478 /* Should regs be displayed at all? */
479 bool display_regs = false;
480 struct reggroup *current_group = nullptr;
484 void do_scroll_vertical (int num_to_scroll) override;
485 void do_scroll_horizontal (int num_to_scroll) override
488 void do_make_visible_with_new_height () override;
490 /* Return the index of the first element displayed. If none are
491 displayed, then return -1. */
492 int first_data_item_displayed ();
495 struct tui_cmd_window : public tui_win_info
498 : tui_win_info (CMD_WIN)
500 can_highlight = false;
503 DISABLE_COPY_AND_ASSIGN (tui_cmd_window);
505 void clear_detail () override;
507 void make_visible (bool visible) override
511 int max_height () const override;
513 void refresh_window () override
517 const char *name () const override
526 void do_scroll_vertical (int num_to_scroll) override
530 void do_scroll_horizontal (int num_to_scroll) override
534 void do_make_visible_with_new_height () override;
537 extern int tui_win_is_auxiliary (enum tui_win_type win_type);
541 extern struct tui_win_info *tui_win_list[MAX_MAJOR_WINDOWS];
543 #define TUI_SRC_WIN ((tui_source_window_base *) tui_win_list[SRC_WIN])
544 #define TUI_DISASM_WIN ((tui_source_window_base *) tui_win_list[DISASSEM_WIN])
545 #define TUI_DATA_WIN ((tui_data_window *) tui_win_list[DATA_WIN])
546 #define TUI_CMD_WIN ((tui_cmd_window *) tui_win_list[CMD_WIN])
548 /* Data Manipulation Functions. */
549 extern void tui_initialize_static_data (void);
550 extern struct tui_win_info *tui_partial_win_by_name (const char *);
551 extern enum tui_layout_type tui_current_layout (void);
552 extern void tui_set_current_layout_to (enum tui_layout_type);
553 extern int tui_term_height (void);
554 extern void tui_set_term_height_to (int);
555 extern int tui_term_width (void);
556 extern void tui_set_term_width_to (int);
557 extern struct tui_locator_window *tui_locator_win_info_ptr (void);
558 extern std::vector<tui_source_window_base *> &tui_source_windows ();
559 extern void tui_clear_source_windows (void);
560 extern void tui_clear_source_windows_detail (void);
561 extern void tui_add_to_source_windows (struct tui_source_window_base *);
562 extern struct tui_win_info *tui_win_with_focus (void);
563 extern void tui_set_win_with_focus (struct tui_win_info *);
564 extern struct tui_layout_def *tui_layout_def (void);
565 extern int tui_win_resized (void);
566 extern void tui_set_win_resized_to (int);
568 extern struct tui_win_info *tui_next_win (struct tui_win_info *);
569 extern struct tui_win_info *tui_prev_win (struct tui_win_info *);
571 extern unsigned int tui_tab_width;
573 #endif /* TUI_TUI_DATA_H */