gdb/tui/tui-data.h

   1 /* TUI data manipulation routines.
   2
   3    Copyright 1998, 1999, 2000, 2001, 2002, 2004 Free Software
   4    Foundation, Inc.
   5
   6    Contributed by Hewlett-Packard Company.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 #ifndef TUI_DATA_H
  26 #define TUI_DATA_H
  27
  28 #if defined (HAVE_NCURSES_H)
  29 #include <ncurses.h>
  30 #elif defined (HAVE_CURSES_H)
  31 #include <curses.h>
  32 #endif
  33
  34 /* Generic window information */
  35 struct tui_gen_win_info
  36 {
  37   WINDOW *handle;       /* window handle */
  38   enum tui_win_type type;       /* type of window */
  39   int width;            /* window width */
  40   int height;           /* window height */
  41   struct tui_point origin;      /* origin of window */
  42   void **content;       /* content of window */
  43   int contentSize;      /* Size of content (# of elements) */
  44   int contentInUse;     /* Can it be used, or is it already used? */
  45   int viewportHeight;   /* viewport height */
  46   int lastVisibleLine;  /* index of last visible line */
  47   int isVisible;                /* whether the window is visible or not */
  48   char* title;          /* Window title to display.  */
  49 };
  50
  51 /* Constant definitions */
  52 #define DEFAULT_TAB_LEN                8
  53 #define NO_SRC_STRING                  "[ No Source Available ]"
  54 #define NO_DISASSEM_STRING             "[ No Assembly Available ]"
  55 #define NO_REGS_STRING                 "[ Register Values Unavailable ]"
  56 #define NO_DATA_STRING                 "[ No Data Values Displayed ]"
  57 #define MAX_CONTENT_COUNT              100
  58 #define SRC_NAME                       "SRC"
  59 #define CMD_NAME                       "CMD"
  60 #define DATA_NAME                      "REGS"
  61 #define DISASSEM_NAME                  "ASM"
  62 #define TUI_NULL_STR                   ""
  63 #define DEFAULT_HISTORY_COUNT          25
  64 #define BOX_WINDOW                     TRUE
  65 #define DONT_BOX_WINDOW                FALSE
  66 #define HILITE                         TRUE
  67 #define NO_HILITE                      FALSE
  68 #define WITH_LOCATOR                   TRUE
  69 #define NO_LOCATOR                     FALSE
  70 #define EMPTY_SOURCE_PROMPT            TRUE
  71 #define NO_EMPTY_SOURCE_PROMPT         FALSE
  72 #define UNDEFINED_ITEM                 -1
  73 #define MIN_WIN_HEIGHT                 3
  74 #define MIN_CMD_WIN_HEIGHT             3
  75
  76 /* Strings to display in the TUI status line.  */
  77 #define PROC_PREFIX                    "In: "
  78 #define LINE_PREFIX                    "Line: "
  79 #define PC_PREFIX                      "PC: "
  80 #define SINGLE_KEY                     "(SingleKey)"
  81
  82 /* Minimum/Maximum length of some fields displayed in the TUI status line.  */
  83 #define MIN_LINE_WIDTH     4 /* Use at least 4 digits for line numbers.  */
  84 #define MIN_PROC_WIDTH    12
  85 #define MAX_TARGET_WIDTH  10
  86 #define MAX_PID_WIDTH     14
  87
  88 #define TUI_FLOAT_REGS_NAME                  "$FREGS"
  89 #define TUI_FLOAT_REGS_NAME_LOWER            "$fregs"
  90 #define TUI_GENERAL_REGS_NAME                "$GREGS"
  91 #define TUI_GENERAL_REGS_NAME_LOWER          "$gregs"
  92 #define TUI_SPECIAL_REGS_NAME                "$SREGS"
  93 #define TUI_SPECIAL_REGS_NAME_LOWER          "$sregs"
  94 #define TUI_GENERAL_SPECIAL_REGS_NAME        "$REGS"
  95 #define TUI_GENERAL_SPECIAL_REGS_NAME_LOWER  "$regs"
  96
  97 /* Scroll direction enum.  */
  98 enum tui_scroll_direction
  99 {
 100   FORWARD_SCROLL,
 101   BACKWARD_SCROLL,
 102   LEFT_SCROLL,
 103   RIGHT_SCROLL
 104 };
 105
 106
 107 /* General list struct.  */
 108 struct tui_list
 109 {
 110   void **list;
 111   int count;
 112 };
 113
 114
 115 /* The kinds of layouts available */
 116 enum tui_layout_type
 117 {
 118   SRC_COMMAND,
 119   DISASSEM_COMMAND,
 120   SRC_DISASSEM_COMMAND,
 121   SRC_DATA_COMMAND,
 122   DISASSEM_DATA_COMMAND,
 123   UNDEFINED_LAYOUT
 124 };
 125
 126 /* Basic data types that can be displayed in the data window. */
 127 enum tui_data_type
 128 {
 129   TUI_REGISTER,
 130   TUI_SCALAR,
 131   TUI_COMPLEX,
 132   TUI_STRUCT
 133 };
 134
 135 /* Types of register displays */
 136 enum tui_register_display_type
 137 {
 138   TUI_UNDEFINED_REGS,
 139   TUI_GENERAL_REGS,
 140   TUI_SFLOAT_REGS,
 141   TUI_DFLOAT_REGS,
 142   TUI_SPECIAL_REGS,
 143   TUI_GENERAL_AND_SPECIAL_REGS
 144 };
 145
 146 /* Structure describing source line or line address */
 147 union tui_line_or_address
 148 {
 149   int lineNo;
 150   CORE_ADDR addr;
 151 };
 152
 153 /* Current Layout definition */
 154 struct tui_layout_def
 155 {
 156   enum tui_win_type displayMode;
 157   int split;
 158   enum tui_register_display_type regsDisplayType;
 159   enum tui_register_display_type floatRegsDisplayType;
 160 };
 161
 162 /* Elements in the Source/Disassembly Window */
 163 struct tui_source_element
 164 {
 165   char *line;
 166   union tui_line_or_address lineOrAddr;
 167   int isExecPoint;
 168   int hasBreak;
 169 };
 170
 171
 172 /* Elements in the data display window content */
 173 struct tui_data_element
 174 {
 175   const char *name;
 176   int itemNo;                   /* the register number, or data display number */
 177   enum tui_data_type type;
 178   void *value;
 179   int highlight;
 180 };
 181
 182
 183 /* Elements in the command window content */
 184 struct tui_command_element
 185 {
 186   char *line;
 187 };
 188
 189
 190 #define MAX_LOCATOR_ELEMENT_LEN        100
 191
 192 /* Elements in the locator window content */
 193 struct tui_locator_element
 194 {
 195   char fileName[MAX_LOCATOR_ELEMENT_LEN];
 196   char procName[MAX_LOCATOR_ELEMENT_LEN];
 197   int lineNo;
 198   CORE_ADDR addr;
 199 };
 200
 201 /* Flags to tell what kind of breakpoint is at current line.  */
 202 #define TUI_BP_ENABLED      0x01
 203 #define TUI_BP_DISABLED     0x02
 204 #define TUI_BP_HIT          0x04
 205 #define TUI_BP_CONDITIONAL  0x08
 206 #define TUI_BP_HARDWARE     0x10
 207
 208 /* Position of breakpoint markers in the exec info string.  */
 209 #define TUI_BP_HIT_POS      0
 210 #define TUI_BP_BREAK_POS    1
 211 #define TUI_EXEC_POS        2
 212 #define TUI_EXECINFO_SIZE   4
 213
 214 typedef char tui_exec_info_content[TUI_EXECINFO_SIZE];
 215
 216 /* An content element in a window */
 217 union tui_which_element
 218 {
 219   struct tui_source_element source;     /* the source elements */
 220   struct tui_gen_win_info dataWindow;   /* data display elements */
 221   struct tui_data_element data; /* elements of dataWindow */
 222   struct tui_command_element command;   /* command elements */
 223   struct tui_locator_element locator;   /* locator elements */
 224   tui_exec_info_content simpleString;   /* simple char based elements */
 225 };
 226
 227 struct tui_win_element
 228 {
 229   int highlight;
 230   union tui_which_element whichElement;
 231 };
 232
 233
 234 /* This describes the content of the window. */
 235 typedef struct tui_win_element **tui_win_content;
 236
 237
 238 /* This struct defines the specific information about a data display window */
 239 struct tui_data_info
 240 {
 241   tui_win_content dataContent;  /* start of data display content */
 242   int dataContentCount;
 243   tui_win_content regsContent;  /* start of regs display content */
 244   int regsContentCount;
 245   enum tui_register_display_type regsDisplayType;
 246   int regsColumnCount;
 247   int displayRegs;              /* Should regs be displayed at all? */
 248 };
 249
 250
 251 struct tui_source_info
 252 {
 253   int hasLocator;               /* Does locator belongs to this window? */
 254   /* Execution information window.  */
 255   struct tui_gen_win_info *executionInfo;
 256   int horizontalOffset; /* used for horizontal scroll */
 257   union tui_line_or_address startLineOrAddr;
 258   char* filename;
 259 };
 260
 261
 262 struct tui_command_info
 263 {
 264   int curLine;          /* The current line position */
 265   int curch;                    /* The current cursor position */
 266   int start_line;
 267 };
 268
 269
 270 /* This defines information about each logical window */
 271 struct tui_win_info
 272 {
 273   struct tui_gen_win_info generic;      /* general window information */
 274   union
 275   {
 276     struct tui_source_info sourceInfo;
 277     struct tui_data_info dataDisplayInfo;
 278     struct tui_command_info commandInfo;
 279     void *opaque;
 280   }
 281   detail;
 282   int canHighlight;             /* Can this window ever be highlighted? */
 283   int isHighlighted;            /* Is this window highlighted? */
 284 };
 285
 286 /* MACROS (prefixed with m_) */
 287
 288 /* Testing macros */
 289 #define        m_genWinPtrIsNull(winInfo) \
 290                 ((winInfo) == (struct tui_gen_win_info *)NULL)
 291 #define        m_genWinPtrNotNull(winInfo) \
 292                 ((winInfo) != (struct tui_gen_win_info *)NULL)
 293 #define        m_winPtrIsNull(winInfo) \
 294                 ((winInfo) == (struct tui_win_info *)NULL)
 295 #define        m_winPtrNotNull(winInfo) \
 296                 ((winInfo) != (struct tui_win_info *)NULL)
 297
 298 #define        m_winIsSourceType(type) \
 299                 (type == SRC_WIN || type == DISASSEM_WIN)
 300 #define        m_winIsAuxillary(winType) \
 301                 (winType > MAX_MAJOR_WINDOWS)
 302 #define        m_hasLocator(winInfo) \
 303                 ( ((winInfo) != (struct tui_win_info *)NULL) ? \
 304                     (winInfo->detail.sourceInfo.hasLocator) : \
 305                     FALSE )
 306
 307 #define     m_setWinHighlightOn(winInfo) \
 308                 if ((winInfo) != (struct tui_win_info *)NULL) \
 309                               (winInfo)->isHighlighted = TRUE
 310 #define     m_setWinHighlightOff(winInfo) \
 311                 if ((winInfo) != (struct tui_win_info *)NULL) \
 312                               (winInfo)->isHighlighted = FALSE
 313
 314
 315 /* Global Data */
 316 extern struct tui_win_info *(winList[MAX_MAJOR_WINDOWS]);
 317
 318 /* Macros */
 319 #define srcWin            winList[SRC_WIN]
 320 #define disassemWin       winList[DISASSEM_WIN]
 321 #define dataWin           winList[DATA_WIN]
 322 #define cmdWin            winList[CMD_WIN]
 323
 324 /* Data Manipulation Functions */
 325 extern void tui_initialize_static_data (void);
 326 extern struct tui_gen_win_info *tui_alloc_generic_win_info (void);
 327 extern struct tui_win_info *tui_alloc_win_info (enum tui_win_type);
 328 extern void tui_init_generic_part (struct tui_gen_win_info *);
 329 extern void tui_init_win_info (struct tui_win_info *);
 330 extern tui_win_content tui_alloc_content (int, enum tui_win_type);
 331 extern int tui_add_content_elements (struct tui_gen_win_info *, int);
 332 extern void tui_init_content_element (struct tui_win_element *, enum tui_win_type);
 333 extern void tui_free_window (struct tui_win_info *);
 334 extern void tui_free_win_content (struct tui_gen_win_info *);
 335 extern void tui_free_data_content (tui_win_content, int);
 336 extern void tui_free_all_source_wins_content (void);
 337 extern void tui_del_window (struct tui_win_info *);
 338 extern void tui_del_data_windows (tui_win_content, int);
 339 extern struct tui_win_info *tui_partial_win_by_name (char *);
 340 extern char *tui_win_name (struct tui_gen_win_info *);
 341 extern enum tui_layout_type tui_current_layout (void);
 342 extern void tui_set_current_layout_to (enum tui_layout_type);
 343 extern int tui_term_height (void);
 344 extern void tui_set_term_height_to (int);
 345 extern int tui_term_width (void);
 346 extern void tui_set_term_width_to (int);
 347 extern void tui_set_gen_win_origin (struct tui_gen_win_info *, int, int);
 348 extern struct tui_gen_win_info *tui_locator_win_info_ptr (void);
 349 extern struct tui_gen_win_info *tui_source_exec_info_win_ptr (void);
 350 extern struct tui_gen_win_info *tui_disassem_exec_info_win_ptr (void);
 351 extern struct tui_list * tui_source_windows (void);
 352 extern void tui_clear_source_windows (void);
 353 extern void tui_clear_source_windows_detail (void);
 354 extern void tui_clear_win_detail (struct tui_win_info * winInfo);
 355 extern void tui_add_to_source_windows (struct tui_win_info *);
 356 extern int tui_default_tab_len (void);
 357 extern void tui_set_default_tab_len (int);
 358 extern struct tui_win_info *tui_win_with_focus (void);
 359 extern void tui_set_win_with_focus (struct tui_win_info *);
 360 extern struct tui_layout_def * tui_layout_def (void);
 361 extern int tui_win_resized (void);
 362 extern void tui_set_win_resized_to (int);
 363
 364 extern struct tui_win_info *tui_next_win (struct tui_win_info *);
 365 extern struct tui_win_info *tui_prev_win (struct tui_win_info *);
 366
 367 extern void tui_add_to_source_windows (struct tui_win_info * winInfo);
 368
 369 #endif /* TUI_DATA_H */