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. */
27 #include "observable.h"
29 struct tui_cmd_window
;
30 struct tui_source_window_base
;
31 struct tui_source_window
;
33 /* A deleter that calls delwin. */
36 void operator() (WINDOW
*win
) const
42 /* Generic window information. */
43 struct tui_gen_win_info
47 explicit tui_gen_win_info (enum tui_win_type t
)
52 /* This is called after the window is resized, and should update the
54 virtual void rerender ()
58 virtual void make_window ();
61 tui_gen_win_info (tui_gen_win_info
&&) = default;
63 virtual ~tui_gen_win_info ()
67 /* Call to refresh this window. */
68 virtual void refresh_window ();
70 /* Make this window visible or invisible. */
71 virtual void make_visible (bool visible
);
73 /* Return the name of this type of window. */
74 virtual const char *name () const
79 /* Compute the maximum height of this window. */
80 virtual int max_height () const = 0;
82 /* Compute the minimum height of this window. */
83 virtual int min_height () const = 0;
85 /* Return true if this window can be boxed. */
86 virtual bool can_box () const
91 /* Resize this window. The parameters are used to set the window's
93 virtual void resize (int height
, int width
,
94 int origin_x
, int origin_y
);
96 /* Return true if this window is visible. */
97 bool is_visible () const
99 return handle
!= nullptr;
103 std::unique_ptr
<WINDOW
, curses_deleter
> handle
;
104 /* Type of window. */
105 enum tui_win_type type
;
110 /* Origin of window. */
115 /* Constant definitions. */
116 #define DEFAULT_TAB_LEN 8
117 #define SRC_NAME "src"
118 #define CMD_NAME "cmd"
119 #define DATA_NAME "regs"
120 #define DISASSEM_NAME "asm"
121 #define MIN_WIN_HEIGHT 3
122 #define MIN_CMD_WIN_HEIGHT 3
124 /* Strings to display in the TUI status line. */
125 #define SINGLE_KEY "(SingleKey)"
127 /* The kinds of layouts available. */
132 SRC_DISASSEM_COMMAND
,
134 DISASSEM_DATA_COMMAND
,
138 enum tui_line_or_address_kind
144 /* Structure describing source line or line address. */
145 struct tui_line_or_address
147 enum tui_line_or_address_kind loa
;
155 /* This defines information about each logical window. */
156 struct tui_win_info
: public tui_gen_win_info
160 explicit tui_win_info (enum tui_win_type type
);
161 DISABLE_COPY_AND_ASSIGN (tui_win_info
);
163 /* Scroll the contents vertically. This is only called via
164 forward_scroll and backward_scroll. */
165 virtual void do_scroll_vertical (int num_to_scroll
) = 0;
167 /* Scroll the contents horizontally. This is only called via
168 left_scroll and right_scroll. */
169 virtual void do_scroll_horizontal (int num_to_scroll
) = 0;
171 void rerender () override
;
173 void make_window () override
;
177 ~tui_win_info () override
181 int max_height () const override
;
183 int min_height () const override
185 return MIN_WIN_HEIGHT
;
188 /* Called after the tab width has been changed. */
189 virtual void update_tab_width ()
193 /* Set whether this window is highlighted. */
194 void set_highlight (bool highlight
)
196 is_highlighted
= highlight
;
199 /* Methods to scroll the contents of this window. Note that they
200 are named with "_scroll" coming at the end because the more
201 obvious "scroll_forward" is defined as a macro in term.h. */
202 void forward_scroll (int num_to_scroll
);
203 void backward_scroll (int num_to_scroll
);
204 void left_scroll (int num_to_scroll
);
205 void right_scroll (int num_to_scroll
);
207 /* Return true if this window can be scrolled, false otherwise. */
208 virtual bool can_scroll () const
213 bool can_box () const override
218 void check_and_display_highlight_if_needed ();
220 /* Window title to display. */
223 /* Is this window highlighted? */
224 bool is_highlighted
= false;
229 extern struct tui_win_info
*tui_win_list
[MAX_MAJOR_WINDOWS
];
231 #define TUI_SRC_WIN ((tui_source_window *) tui_win_list[SRC_WIN])
232 #define TUI_DISASM_WIN ((tui_source_window_base *) tui_win_list[DISASSEM_WIN])
233 #define TUI_DATA_WIN ((tui_data_window *) tui_win_list[DATA_WIN])
234 #define TUI_CMD_WIN ((tui_cmd_window *) tui_win_list[CMD_WIN])
236 /* An iterator that iterates over all windows. */
238 class tui_window_iterator
242 typedef tui_window_iterator self_type
;
243 typedef struct tui_win_info
*value_type
;
244 typedef struct tui_win_info
*&reference
;
245 typedef struct tui_win_info
**pointer
;
246 typedef std::forward_iterator_tag iterator_category
;
247 typedef int difference_type
;
249 explicit tui_window_iterator (enum tui_win_type type
)
255 tui_window_iterator ()
256 : m_type (MAX_MAJOR_WINDOWS
)
260 bool operator!= (const self_type
&other
) const
262 return m_type
!= other
.m_type
;
265 value_type
operator* () const
267 gdb_assert (m_type
< MAX_MAJOR_WINDOWS
);
268 return tui_win_list
[m_type
];
271 self_type
&operator++ ()
282 while (m_type
< MAX_MAJOR_WINDOWS
&& tui_win_list
[m_type
] == nullptr)
289 /* A range adapter for iterating over TUI windows. */
291 struct all_tui_windows
293 tui_window_iterator
begin () const
295 return tui_window_iterator (SRC_WIN
);
298 tui_window_iterator
end () const
300 return tui_window_iterator ();
305 /* Data Manipulation Functions. */
306 extern enum tui_layout_type
tui_current_layout (void);
307 extern int tui_term_height (void);
308 extern void tui_set_term_height_to (int);
309 extern int tui_term_width (void);
310 extern void tui_set_term_width_to (int);
311 extern struct tui_locator_window
*tui_locator_win_info_ptr (void);
312 extern struct tui_win_info
*tui_win_with_focus (void);
313 extern void tui_set_win_with_focus (struct tui_win_info
*);
314 extern bool tui_win_resized ();
315 extern void tui_set_win_resized_to (bool);
317 extern struct tui_win_info
*tui_next_win (struct tui_win_info
*);
318 extern struct tui_win_info
*tui_prev_win (struct tui_win_info
*);
320 /* Delete all the invisible windows. Note that it is an error to call
321 this when the command window is invisible -- we don't allow the
322 command window to be removed from the layout. */
323 extern void tui_delete_invisible_windows ();
325 extern unsigned int tui_tab_width
;
327 #endif /* TUI_TUI_DATA_H */