tuidata.c

gdb-6.0 linux 下的调试工具

/* TUI data manipulation routines.

   Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
   Inc.

   Contributed by Hewlett-Packard Company.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include "defs.h"
#include "symtab.h"
#include "tui.h"
#include "tuiData.h"
#include "tuiGeneralWin.h"

#ifdef HAVE_NCURSES_H       
#include <ncurses.h>
#else
#ifdef HAVE_CURSES_H
#include <curses.h>
#endif
#endif

/****************************
** GLOBAL DECLARATIONS
****************************/
TuiWinInfoPtr winList[MAX_MAJOR_WINDOWS];

/***************************
** Private data
****************************/
static TuiLayoutType _currentLayout = UNDEFINED_LAYOUT;
static int _termHeight, _termWidth;
static TuiGenWinInfo _locator;
static TuiGenWinInfo _execInfo[2];
static TuiWinInfoPtr _srcWinList[2];
static TuiList _sourceWindows =
{(OpaqueList) _srcWinList, 0};
static int _defaultTabLen = DEFAULT_TAB_LEN;
static TuiWinInfoPtr _winWithFocus = (TuiWinInfoPtr) NULL;
static TuiLayoutDef _layoutDef =
{SRC_WIN,			/* displayMode */
 FALSE,				/* split */
 TUI_UNDEFINED_REGS,		/* regsDisplayType */
 TUI_SFLOAT_REGS};		/* floatRegsDisplayType */
static int _winResized = FALSE;


/*********************************
** Static function forward decls
**********************************/
static void freeContent (TuiWinContent, int, TuiWinType);
static void freeContentElements (TuiWinContent, int, TuiWinType);



/*********************************
** PUBLIC FUNCTIONS
**********************************/

/******************************************
** ACCESSORS & MUTATORS FOR PRIVATE DATA
******************************************/

/*
   ** tuiWinResized().
   **        Answer a whether the terminal window has been resized or not
 */
int
tuiWinResized (void)
{
  return _winResized;
}				/* tuiWinResized */


/*
   ** tuiSetWinResized().
   **        Set a whether the terminal window has been resized or not
 */
void
tuiSetWinResizedTo (int resized)
{
  _winResized = resized;

  return;
}				/* tuiSetWinResizedTo */


/*
   ** tuiLayoutDef().
   **        Answer a pointer to the current layout definition
 */
TuiLayoutDefPtr
tuiLayoutDef (void)
{
  return &_layoutDef;
}				/* tuiLayoutDef */


/*
   ** tuiWinWithFocus().
   **        Answer the window with the logical focus
 */
TuiWinInfoPtr
tuiWinWithFocus (void)
{
  return _winWithFocus;
}				/* tuiWinWithFocus */


/*
   ** tuiSetWinWithFocus().
   **        Set the window that has the logical focus
 */
void
tuiSetWinWithFocus (TuiWinInfoPtr winInfo)
{
  _winWithFocus = winInfo;

  return;
}				/* tuiSetWinWithFocus */


/*
   ** tuiDefaultTabLen().
   **        Answer the length in chars, of tabs
 */
int
tuiDefaultTabLen (void)
{
  return _defaultTabLen;
}				/* tuiDefaultTabLen */


/*
   ** tuiSetDefaultTabLen().
   **        Set the length in chars, of tabs
 */
void
tuiSetDefaultTabLen (int len)
{
  _defaultTabLen = len;

  return;
}				/* tuiSetDefaultTabLen */


/*
   ** currentSourceWin()
   **        Accessor for the current source window.  Usually there is only
   **        one source window (either source or disassembly), but both can
   **        be displayed at the same time.
 */
TuiListPtr
sourceWindows (void)
{
  return &_sourceWindows;
}				/* currentSourceWindows */


/*
   ** clearSourceWindows()
   **        Clear the list of source windows.  Usually there is only one
   **        source window (either source or disassembly), but both can be
   **        displayed at the same time.
 */
void
clearSourceWindows (void)
{
  _sourceWindows.list[0] = (Opaque) NULL;
  _sourceWindows.list[1] = (Opaque) NULL;
  _sourceWindows.count = 0;

  return;
}				/* currentSourceWindows */


/*
   ** clearSourceWindowsDetail()
   **        Clear the pertinant detail in the source windows.
 */
void
clearSourceWindowsDetail (void)
{
  int i;

  for (i = 0; i < (sourceWindows ())->count; i++)
    clearWinDetail ((TuiWinInfoPtr) (sourceWindows ())->list[i]);

  return;
}				/* currentSourceWindows */


/*
   ** addSourceWindowToList().
   **       Add a window to the list of source windows.  Usually there is
   **       only one source window (either source or disassembly), but
   **       both can be displayed at the same time.
 */
void
addToSourceWindows (TuiWinInfoPtr winInfo)
{
  if (_sourceWindows.count < 2)
    _sourceWindows.list[_sourceWindows.count++] = (Opaque) winInfo;

  return;
}				/* addToSourceWindows */


/*
   ** clearWinDetail()
   **        Clear the pertinant detail in the windows.
 */
void
clearWinDetail (TuiWinInfoPtr winInfo)
{
  if (m_winPtrNotNull (winInfo))
    {
      switch (winInfo->generic.type)
	{
	case SRC_WIN:
	case DISASSEM_WIN:
	  winInfo->detail.sourceInfo.startLineOrAddr.addr = 0;
	  winInfo->detail.sourceInfo.horizontalOffset = 0;
	  break;
	case CMD_WIN:
	  winInfo->detail.commandInfo.curLine =
	    winInfo->detail.commandInfo.curch = 0;
	  break;
	case DATA_WIN:
	  winInfo->detail.dataDisplayInfo.dataContent =
	    (TuiWinContent) NULL;
	  winInfo->detail.dataDisplayInfo.dataContentCount = 0;
	  winInfo->detail.dataDisplayInfo.regsContent =
	    (TuiWinContent) NULL;
	  winInfo->detail.dataDisplayInfo.regsContentCount = 0;
	  winInfo->detail.dataDisplayInfo.regsDisplayType =
	    TUI_UNDEFINED_REGS;
	  winInfo->detail.dataDisplayInfo.regsColumnCount = 1;
	  winInfo->detail.dataDisplayInfo.displayRegs = FALSE;
	  break;
	default:
	  break;
	}
    }

  return;
}				/* clearWinDetail */


/*
   ** sourceExecInfoPtr().
   **        Accessor for the source execution info ptr.
 */
TuiGenWinInfoPtr
sourceExecInfoWinPtr (void)
{
  return &_execInfo[0];
}				/* sourceExecInfoWinPtr */


/*
   ** disassemExecInfoPtr().
   **        Accessor for the disassem execution info ptr.
 */
TuiGenWinInfoPtr
disassemExecInfoWinPtr (void)
{
  return &_execInfo[1];
}				/* disassemExecInfoWinPtr */


/*
   ** locatorWinInfoPtr().
   **        Accessor for the locator win info.  Answers a pointer to the
   **        static locator win info struct.
 */
TuiGenWinInfoPtr
locatorWinInfoPtr (void)
{
  return &_locator;
}				/* locatorWinInfoPtr */


/*
   ** termHeight().
   **        Accessor for the termHeight
 */
int
termHeight (void)
{
  return _termHeight;
}				/* termHeight */


/*
   ** setTermHeightTo().
   **        Mutator for the term height
 */
void
setTermHeightTo (int h)
{
  _termHeight = h;

  return;
}				/* setTermHeightTo */


/*
   ** termWidth().
   **        Accessor for the termWidth
 */
int
termWidth (void)
{
  return _termWidth;
}				/* termWidth */


/*
   ** setTermWidth().
   **        Mutator for the termWidth
 */
void
setTermWidthTo (int w)
{
  _termWidth = w;

  return;
}				/* setTermWidthTo */


/*
   ** currentLayout().
   **        Accessor for the current layout
 */
TuiLayoutType
currentLayout (void)
{
  return _currentLayout;
}				/* currentLayout */


/*
   ** setCurrentLayoutTo().
   **        Mutator for the current layout
 */
void
setCurrentLayoutTo (TuiLayoutType newLayout)
{
  _currentLayout = newLayout;

  return;
}				/* setCurrentLayoutTo */


/*
   ** setGenWinOrigin().
   **        Set the origin of the window
 */
void
setGenWinOrigin (TuiGenWinInfoPtr winInfo, int x, int y)
{
  winInfo->origin.x = x;
  winInfo->origin.y = y;

  return;
}				/* setGenWinOrigin */


/*****************************
** OTHER PUBLIC FUNCTIONS
*****************************/


/*
   ** tuiNextWin().
   **        Answer the next window in the list, cycling back to the top
   **        if necessary
 */
TuiWinInfoPtr
tuiNextWin (TuiWinInfoPtr curWin)
{
  TuiWinType type = curWin->generic.type;
  TuiWinInfoPtr nextWin = (TuiWinInfoPtr) NULL;

  if (curWin->generic.type == CMD_WIN)
    type = SRC_WIN;
  else
    type = curWin->generic.type + 1;
  while (type != curWin->generic.type && m_winPtrIsNull (nextWin))
    {
      if (winList[type] && winList[type]->generic.isVisible)
	nextWin = winList[type];
      else
	{
	  if (type == CMD_WIN)
	    type = SRC_WIN;
	  else
	    type++;
	}
    }

  return nextWin;
}				/* tuiNextWin */


/*
   ** tuiPrevWin().
   **        Answer the prev window in the list, cycling back to the bottom
   **        if necessary
 */
TuiWinInfoPtr
tuiPrevWin (TuiWinInfoPtr curWin)
{
  TuiWinType type = curWin->generic.type;
  TuiWinInfoPtr prev = (TuiWinInfoPtr) NULL;

  if (curWin->generic.type == SRC_WIN)
    type = CMD_WIN;
  else
    type = curWin->generic.type - 1;
  while (type != curWin->generic.type && m_winPtrIsNull (prev))
    {
      if (winList[type]->generic.isVisible)
	prev = winList[type];
      else
	{
	  if (type == SRC_WIN)
	    type = CMD_WIN;
	  else
	    type--;
	}
    }

  return prev;
}


/*
   **  partialWinByName().
   **      Answer the window represented by name
 */
TuiWinInfoPtr
partialWinByName (char *name)
{
  TuiWinInfoPtr winInfo = (TuiWinInfoPtr) NULL;

  if (name != (char *) NULL)
    {
      int i = 0;

      while (i < MAX_MAJOR_WINDOWS && m_winPtrIsNull (winInfo))
	{
          if (winList[i] != 0)
            {
              char *curName = winName (&winList[i]->generic);
              if (strlen (name) <= strlen (curName) &&
                  strncmp (name, curName, strlen (name)) == 0)
                winInfo = winList[i];
            }
	  i++;
	}
    }

  return winInfo;
}				/* partialWinByName */


/*
   ** winName().
   **      Answer the name of the window
 */
char *
winName (TuiGenWinInfoPtr winInfo)
{
  char *name = (char *) NULL;

  switch (winInfo->type)
    {
    case SRC_WIN:
      name = SRC_NAME;
      break;
    case CMD_WIN:
      name = CMD_NAME;
      break;
    case DISASSEM_WIN:
      name = DISASSEM_NAME;
      break;
    case DATA_WIN:
      name = DATA_NAME;
      break;
    default:
      name = "";
      break;
    }

  return name;
}				/* winName */


/*
   ** initializeStaticData
 */
void
initializeStaticData (void)
{
  initGenericPart (sourceExecInfoWinPtr ());
  initGenericPart (disassemExecInfoWinPtr ());
  initGenericPart (locatorWinInfoPtr ());

  return;
}				/* initializeStaticData */