gdb/tui/tuiDataWin.c

   1 /* Data/register window display.
   2    Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3    Contributed by Hewlett-Packard Company.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23 #include "tui.h"
  24 #include "tuiData.h"
  25 #include "tuiRegs.h"
  26
  27
  28 /*****************************************
  29 ** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
  30 ******************************************/
  31
  32
  33
  34 /*****************************************
  35 ** PUBLIC FUNCTIONS                        **
  36 ******************************************/
  37
  38
  39 /*
  40    ** tuiFirstDataItemDisplayed()
  41    **    Answer the index first element displayed.
  42    **    If none are displayed, then return (-1).
  43  */
  44 int
  45 #ifdef __STDC__
  46 tuiFirstDataItemDisplayed (void)
  47 #else
  48 tuiFirstDataItemDisplayed ()
  49 #endif
  50 {
  51   int elementNo = (-1);
  52   int i;
  53
  54   for (i = 0; (i < dataWin->generic.contentSize && elementNo < 0); i++)
  55     {
  56       TuiGenWinInfoPtr dataItemWin;
  57
  58       dataItemWin = &((TuiWinContent)
  59                       dataWin->generic.content)[i]->whichElement.dataWindow;
  60       if (dataItemWin->handle != (WINDOW *) NULL && dataItemWin->isVisible)
  61         elementNo = i;
  62     }
  63
  64   return elementNo;
  65 }                               /* tuiFirstDataItemDisplayed */
  66
  67
  68 /*
  69    ** tuiFirstDataElementNoInLine()
  70    **        Answer the index of the first element in lineNo.  If lineNo is
  71    **        past the data area (-1) is returned.
  72  */
  73 int
  74 #ifdef __STDC__
  75 tuiFirstDataElementNoInLine (
  76                               int lineNo)
  77 #else
  78 tuiFirstDataElementNoInLine (lineNo)
  79      int lineNo;
  80 #endif
  81 {
  82   int firstElementNo = (-1);
  83
  84   /*
  85      ** First see if there is a register on lineNo, and if so, set the
  86      ** first element number
  87    */
  88   if ((firstElementNo = tuiFirstRegElementNoInLine (lineNo)) == -1)
  89     {                           /*
  90                                    ** Looking at the general data, the 1st element on lineNo
  91                                  */
  92     }
  93
  94   return firstElementNo;
  95 }                               /* tuiFirstDataElementNoInLine */
  96
  97
  98 /*
  99    ** tuiDeleteDataContentWindows()
 100    **        Function to delete all the item windows in the data window.
 101    **        This is usually done when the data window is scrolled.
 102  */
 103 void
 104 #ifdef __STDC__
 105 tuiDeleteDataContentWindows (void)
 106 #else
 107 tuiDeleteDataContentWindows ()
 108 #endif
 109 {
 110   int i;
 111   TuiGenWinInfoPtr dataItemWinPtr;
 112
 113   for (i = 0; (i < dataWin->generic.contentSize); i++)
 114     {
 115       dataItemWinPtr = &((TuiWinContent)
 116                       dataWin->generic.content)[i]->whichElement.dataWindow;
 117       tuiDelwin (dataItemWinPtr->handle);
 118       dataItemWinPtr->handle = (WINDOW *) NULL;
 119       dataItemWinPtr->isVisible = FALSE;
 120     }
 121
 122   return;
 123 }                               /* tuiDeleteDataContentWindows */
 124
 125
 126 void
 127 #ifdef __STDC__
 128 tuiEraseDataContent (
 129                       char *prompt)
 130 #else
 131 tuiEraseDataContent (prompt)
 132      char *prompt;
 133 #endif
 134 {
 135   werase (dataWin->generic.handle);
 136   checkAndDisplayHighlightIfNeeded (dataWin);
 137   if (prompt != (char *) NULL)
 138     {
 139       int halfWidth = (dataWin->generic.width - 2) / 2;
 140       int xPos;
 141
 142       if (strlen (prompt) >= halfWidth)
 143         xPos = 1;
 144       else
 145         xPos = halfWidth - strlen (prompt);
 146       mvwaddstr (dataWin->generic.handle,
 147                  (dataWin->generic.height / 2),
 148                  xPos,
 149                  prompt);
 150     }
 151   wrefresh (dataWin->generic.handle);
 152
 153   return;
 154 }                               /* tuiEraseDataContent */
 155
 156
 157 /*
 158    ** tuiDisplayAllData().
 159    **        This function displays the data that is in the data window's
 160    **        content.  It does not set the content.
 161  */
 162 void
 163 #ifdef __STDC__
 164 tuiDisplayAllData (void)
 165 #else
 166 tuiDisplayAllData ()
 167 #endif
 168 {
 169   if (dataWin->generic.contentSize <= 0)
 170     tuiEraseDataContent (NO_DATA_STRING);
 171   else
 172     {
 173       tuiEraseDataContent ((char *) NULL);
 174       tuiDeleteDataContentWindows ();
 175       checkAndDisplayHighlightIfNeeded (dataWin);
 176       tuiDisplayRegistersFrom (0);
 177       /*
 178          ** Then display the other data
 179        */
 180       if (dataWin->detail.dataDisplayInfo.dataContent !=
 181           (TuiWinContent) NULL &&
 182           dataWin->detail.dataDisplayInfo.dataContentCount > 0)
 183         {
 184         }
 185     }
 186   return;
 187 }                               /* tuiDisplayAllData */
 188
 189
 190 /*
 191    ** tuiDisplayDataFromLine()
 192    **        Function to display the data starting at line, lineNo, in the
 193    **        data window.
 194  */
 195 void
 196 #ifdef __STDC__
 197 tuiDisplayDataFromLine (
 198                          int lineNo)
 199 #else
 200 tuiDisplayDataFromLine (lineNo)
 201      int lineNo;
 202 #endif
 203 {
 204   int _lineNo = lineNo;
 205
 206   if (lineNo < 0)
 207     _lineNo = 0;
 208
 209   checkAndDisplayHighlightIfNeeded (dataWin);
 210
 211   /* there is no general data, force regs to display (if there are any) */
 212   if (dataWin->detail.dataDisplayInfo.dataContentCount <= 0)
 213     tuiDisplayRegistersFromLine (_lineNo, TRUE);
 214   else
 215     {
 216       int elementNo, startLineNo;
 217       int regsLastLine = tuiLastRegsLineNo ();
 218
 219
 220       /* display regs if we can */
 221       if (tuiDisplayRegistersFromLine (_lineNo, FALSE) < 0)
 222         {                       /*
 223                                    ** _lineNo is past the regs display, so calc where the
 224                                    ** start data element is
 225                                  */
 226           if (regsLastLine < _lineNo)
 227             {                   /* figure out how many lines each element is to obtain
 228                                    the start elementNo */
 229             }
 230         }
 231       else
 232         {                       /*
 233                                    ** calculate the starting element of the data display, given
 234                                    ** regsLastLine and how many lines each element is, up to
 235                                    ** _lineNo
 236                                  */
 237         }
 238       /* Now display the data , starting at elementNo */
 239     }
 240
 241   return;
 242 }                               /* tuiDisplayDataFromLine */
 243
 244
 245 /*
 246    ** tuiDisplayDataFrom()
 247    **        Display data starting at element elementNo
 248  */
 249 void
 250 #ifdef __STDC__
 251 tuiDisplayDataFrom (
 252                      int elementNo,
 253                      int reuseWindows)
 254 #else
 255 tuiDisplayDataFrom (elementNo, reuseWindows)
 256      int elementNo;
 257      int reuseWindows;
 258 #endif
 259 {
 260   int firstLine = (-1);
 261
 262   if (elementNo < dataWin->detail.dataDisplayInfo.regsContentCount)
 263     firstLine = tuiLineFromRegElementNo (elementNo);
 264   else
 265     {                           /* calculate the firstLine from the element number */
 266     }
 267
 268   if (firstLine >= 0)
 269     {
 270       tuiEraseDataContent ((char *) NULL);
 271       if (!reuseWindows)
 272         tuiDeleteDataContentWindows ();
 273       tuiDisplayDataFromLine (firstLine);
 274     }
 275
 276   return;
 277 }                               /* tuiDisplayDataFrom */
 278
 279
 280 /*
 281    ** tuiRefreshDataWin()
 282    **        Function to redisplay the contents of the data window.
 283  */
 284 void
 285 #ifdef __STDC__
 286 tuiRefreshDataWin (void)
 287 #else
 288 tuiRefreshDataWin ()
 289 #endif
 290 {
 291   tuiEraseDataContent ((char *) NULL);
 292   if (dataWin->generic.contentSize > 0)
 293     {
 294       int firstElement = tuiFirstDataItemDisplayed ();
 295
 296       if (firstElement >= 0)    /* re-use existing windows */
 297         tuiDisplayDataFrom (firstElement, TRUE);
 298     }
 299
 300   return;
 301 }                               /* tuiRefreshDataWin */
 302
 303
 304 /*
 305    ** tuiCheckDataValues().
 306    **        Function to check the data values and hilite any that have changed
 307  */
 308 void
 309 #ifdef __STDC__
 310 tuiCheckDataValues (
 311                      struct frame_info *frame)
 312 #else
 313 tuiCheckDataValues (frame)
 314      struct frame_info *frame;
 315 #endif
 316 {
 317   tuiCheckRegisterValues (frame);
 318
 319   /* Now check any other data values that there are */
 320   if (m_winPtrNotNull (dataWin) && dataWin->generic.isVisible)
 321     {
 322       int i;
 323
 324       for (i = 0; dataWin->detail.dataDisplayInfo.dataContentCount; i++)
 325         {
 326 #ifdef LATER
 327           TuiDataElementPtr dataElementPtr;
 328           TuiGenWinInfoPtr dataItemWinPtr;
 329           Opaque newValue;
 330
 331           dataItemPtr = &dataWin->detail.dataDisplayInfo.
 332             dataContent[i]->whichElement.dataWindow;
 333           dataElementPtr = &((TuiWinContent)
 334                              dataItemWinPtr->content)[0]->whichElement.data;
 335           if value
 336             has changed (dataElementPtr, frame, &newValue)
 337             {
 338               dataElementPtr->value = newValue;
 339               update the display with the new value, hiliting it.
 340             }
 341 #endif
 342         }
 343     }
 344 }                               /* tuiCheckDataValues */
 345
 346
 347 /*
 348    ** tui_vCheckDataValues().
 349    **        Function to check the data values and hilite any that have
 350    **        changed with args in a va_list
 351  */
 352 void
 353 #ifdef __STDC__
 354 tui_vCheckDataValues (
 355                        va_list args)
 356 #else
 357 tui_vCheckDataValues (args)
 358      va_list args;
 359 #endif
 360 {
 361   struct frame_info *frame = va_arg (args, struct frame_info *);
 362
 363   tuiCheckDataValues (frame);
 364
 365   return;
 366 }                               /* tui_vCheckDataValues */
 367
 368
 369 /*
 370    ** tuiVerticalDataScroll()
 371    **        Scroll the data window vertically forward or backward.
 372  */
 373 void
 374 #ifdef __STDC__
 375 tuiVerticalDataScroll (
 376                         TuiScrollDirection scrollDirection,
 377                         int numToScroll)
 378 #else
 379 tuiVerticalDataScroll (scrollDirection, numToScroll)
 380      TuiScrollDirection scrollDirection;
 381      int numToScroll;
 382 #endif
 383 {
 384   int firstElementNo;
 385   int firstLine = (-1);
 386
 387   firstElementNo = tuiFirstDataItemDisplayed ();
 388   if (firstElementNo < dataWin->detail.dataDisplayInfo.regsContentCount)
 389     firstLine = tuiLineFromRegElementNo (firstElementNo);
 390   else
 391     {                           /* calculate the first line from the element number which is in
 392                                    ** the general data content
 393                                  */
 394     }
 395
 396   if (firstLine >= 0)
 397     {
 398       int lastElementNo, lastLine;
 399
 400       if (scrollDirection == FORWARD_SCROLL)
 401         firstLine += numToScroll;
 402       else
 403         firstLine -= numToScroll;
 404       tuiEraseDataContent ((char *) NULL);
 405       tuiDeleteDataContentWindows ();
 406       tuiDisplayDataFromLine (firstLine);
 407     }
 408
 409   return;
 410 }                               /* tuiVerticalDataScroll */
 411
 412
 413 /*****************************************
 414 ** STATIC LOCAL FUNCTIONS               **
 415 ******************************************/