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/*
 * tkTableWin.c --
 *
 *      This module implements embedded windows for table widgets.
 *      Much of this code is adapted from tkGrid.c and tkTextWind.c.
 *
 * Copyright (c) 1998 Jeffrey Hobbs
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 */
 
#include "tkTable.h"
 
static int      StickyParseProc _ANSI_ARGS_((ClientData clientData,
                            Tcl_Interp *interp, Tk_Window tkwin, char *value,
                            char *widgRec, int offset));
static char *   StickyPrintProc _ANSI_ARGS_((ClientData clientData,
                            Tk_Window tkwin, char *widgRec, int offset,
                            Tcl_FreeProc **freeProcPtr));
 
static void     EmbWinLostSlaveProc _ANSI_ARGS_((ClientData clientData,
                                                Tk_Window tkwin));
static void     EmbWinRequestProc _ANSI_ARGS_((ClientData clientData,
                                               Tk_Window tkwin));
 
static void     EmbWinCleanup _ANSI_ARGS_((Table *tablePtr,
                                           TableEmbWindow *ewPtr));
static int      EmbWinConfigure _ANSI_ARGS_((Table *tablePtr,
                                             TableEmbWindow *ewPtr,
                                             int argc, char **argv));
static void     EmbWinStructureProc _ANSI_ARGS_((ClientData clientData,
                                                 XEvent *eventPtr));
static void     EmbWinUnmapNow _ANSI_ARGS_((Tk_Window ewTkwin,
                                            Tk_Window tkwin));
 
static Tk_GeomMgr tableGeomType = {
    "table",                    /* name */
    EmbWinRequestProc,          /* requestProc */
    EmbWinLostSlaveProc,        /* lostSlaveProc */
};
 
/* windows subcommands */
#define WIN_CGET        1       /* get config item of embedded window */
#define WIN_CONFIGURE   2       /* configure an embedded window */
#define WIN_DELETE      3       /* delete an embedded window */
#define WIN_MOVE        4       /* moves a window index */
#define WIN_NAMES       5       /* print the embedded window names */
static Cmd_Struct win_cmds[] = {
  {"configure", WIN_CONFIGURE},
  {"cget",      WIN_CGET},
  {"delete",    WIN_DELETE},
  {"move",      WIN_MOVE},
  {"names",     WIN_NAMES},
  {"", 0}
};
 
/* Flag values for "sticky"ness  The 16 combinations subsume the packer's
 * notion of anchor and fill.
 *
 * STICK_NORTH          This window sticks to the top of its cavity.
 * STICK_EAST           This window sticks to the right edge of its cavity.
 * STICK_SOUTH          This window sticks to the bottom of its cavity.
 * STICK_WEST           This window sticks to the left edge of its cavity.
 */
 
#define STICK_NORTH     (1<<0)
#define STICK_EAST      (1<<1)
#define STICK_SOUTH     (1<<2)
#define STICK_WEST      (1<<3)
 
/*
 * The default specification for configuring embedded windows
 * Done like this to make the command line parsing easy
 */
 
static Tk_CustomOption stickyOption = {StickyParseProc, StickyPrintProc,
                                       (ClientData) NULL};
 
static Tk_ConfigSpec winConfigSpecs[] = {
  {TK_CONFIG_BORDER, "-background", "background", "Background", NULL,
   Tk_Offset(TableEmbWindow, bg),
   TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK },
  {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
   (char *) NULL, 0, 0 },
  {TK_CONFIG_STRING, "-create", (char *) NULL, (char *) NULL, (char *) NULL,
   Tk_Offset(TableEmbWindow, create),
   TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK },
  {TK_CONFIG_PIXELS, "-padx", (char *) NULL, (char *) NULL, (char *) NULL,
   Tk_Offset(TableEmbWindow, padX), TK_CONFIG_DONT_SET_DEFAULT },
  {TK_CONFIG_PIXELS, "-pady", (char *) NULL, (char *) NULL, (char *) NULL,
   Tk_Offset(TableEmbWindow, padY), TK_CONFIG_DONT_SET_DEFAULT },
  {TK_CONFIG_CUSTOM, "-sticky", (char *) NULL, (char *) NULL, (char *) NULL,
   Tk_Offset(TableEmbWindow, sticky), TK_CONFIG_DONT_SET_DEFAULT,
   &stickyOption},
  {TK_CONFIG_RELIEF, "-relief", "relief", "Relief", NULL,
   Tk_Offset(TableEmbWindow, relief), 0 },
  {TK_CONFIG_WINDOW, "-window", (char *) NULL, (char *) NULL, (char *) NULL,
   Tk_Offset(TableEmbWindow, tkwin),
   TK_CONFIG_DONT_SET_DEFAULT|TK_CONFIG_NULL_OK },
  {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
   (char *) NULL, 0, 0 }
};
 
/*
 *----------------------------------------------------------------------
 *
 * StickyPrintProc --
 *      Converts the internal boolean combination of "sticky" bits onto
 *      a TCL string element containing zero or more of n, s, e, or w.
 *
 * Results:
 *      A string is placed into the "result" pointer.
 *
 * Side effects:
 *      none.
 *
 *----------------------------------------------------------------------
 */
static char *
StickyPrintProc(clientData, tkwin, widgRec, offset, freeProcPtr)
    ClientData clientData;              /* Ignored. */
    Tk_Window tkwin;                    /* Window for text widget. */
    char *widgRec;                      /* Pointer to TkTextEmbWindow
                                         * structure. */
    int offset;                         /* Ignored. */
    Tcl_FreeProc **freeProcPtr;         /* Pointer to variable to fill in with
                                         * information about how to reclaim
                                         * storage for return string. */
{
  int flags = ((TableEmbWindow *) widgRec)->sticky;
  int count = 0;
  char *result = (char *) ckalloc(5*sizeof(char));
 
  if (flags&STICK_NORTH) result[count++] = 'n';
  if (flags&STICK_EAST)  result[count++] = 'e';
  if (flags&STICK_SOUTH) result[count++] = 's';
  if (flags&STICK_WEST)  result[count++] = 'w';
 
  *freeProcPtr = TCL_DYNAMIC;
  result[count] = '\0';
  return result;
}
 
/*
 *----------------------------------------------------------------------
 *
 * StringParseProc --
 *      Converts an ascii string representing a widgets stickyness
 *      into the boolean result.
 *
 * Results:
 *      The boolean combination of the "sticky" bits is retuned.  If an
 *      error occurs, such as an invalid character, -1 is returned instead.
 *
 * Side effects:
 *      none
 *
 *----------------------------------------------------------------------
 */
static int
StickyParseProc(clientData, interp, tkwin, value, widgRec, offset)
    ClientData clientData;              /* Not used.*/
    Tcl_Interp *interp;                 /* Used for reporting errors. */
    Tk_Window tkwin;                    /* Window for text widget. */
    char *value;                        /* Value of option. */
    char *widgRec;                      /* Pointer to TkTextEmbWindow
                                         * structure. */
    int offset;                         /* Offset into item (ignored). */
{
  register TableEmbWindow *ewPtr = (TableEmbWindow *) widgRec;
  int sticky = 0;
  char c;
 
  while ((c = *value++) != '\0') {
    switch (c) {
    case 'n': case 'N': sticky |= STICK_NORTH; break;
    case 'e': case 'E': sticky |= STICK_EAST;  break;
    case 's': case 'S': sticky |= STICK_SOUTH; break;
    case 'w': case 'W': sticky |= STICK_WEST;  break;
    case ' ': case ',': case '\t': case '\r': case '\n': break;
    default:
      Tcl_AppendResult(interp, "bad sticky value \"", --value,
                       "\": must contain n, s, e or w",
                       (char *) NULL);
      return TCL_ERROR;
    }
  }
  ewPtr->sticky = sticky;
  return TCL_OK;
}
 
/*
 * ckallocs space for a new embedded window structure and clears the structure
 * returns the pointer to the new structure
 */
static TableEmbWindow *
TableNewEmbWindow(Table *tablePtr)
{
  TableEmbWindow *ewPtr = (TableEmbWindow *) ckalloc(sizeof(TableEmbWindow));
  ewPtr->tablePtr       = tablePtr;
  ewPtr->tkwin          = NULL;
  ewPtr->hPtr           = NULL;
  ewPtr->bg             = NULL;
  ewPtr->create         = NULL;
  ewPtr->relief         = -1;
  ewPtr->sticky         = 0;
  ewPtr->padX           = 0;
  ewPtr->padY           = 0;
  ewPtr->displayed      = 0;
  return ewPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * EmbWinCleanup --
 *      Releases resources used by an embedded window before it is freed up.
 *
 * Results:
 *      Window will no longer be valid.
 *
 * Side effects:
 *      None.
 *
 *----------------------------------------------------------------------
 */
static void
EmbWinCleanup(Table *tablePtr, TableEmbWindow *ewPtr)
{
  /* free the options in the widget */
  Tk_FreeOptions(winConfigSpecs, (char *) ewPtr, tablePtr->display, 0);
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinDisplay --
 *
 *      This procedure is invoked by TableDisplay for
 *      mapping windows into cells.
 *
 * Results:
 *      Displays or moves window on table screen.
 *
 * Side effects:
 *      None.
 *
 *--------------------------------------------------------------
 */
void
EmbWinDisplay(Table *tablePtr, Drawable window, TableEmbWindow *ewPtr,
              TableTag *tagPtr, int x, int y, int width, int height)
{
  Tk_Window tkwin = tablePtr->tkwin;
  Tk_Window ewTkwin = ewPtr->tkwin;
  int diffx=0;   /* Cavity width - slave width. */
  int diffy=0;   /* Cavity hight - slave height. */
  int sticky = ewPtr->sticky;
 
 
  if (ewPtr->bg)
    tagPtr->bg = ewPtr->bg;
  if (ewPtr->relief != -1)
    tagPtr->relief = ewPtr->relief;
 
  x += ewPtr->padX/2;
  width -= ewPtr->padX;
  y += ewPtr->padY/2;
  height -= ewPtr->padY;
 
  if (width > Tk_ReqWidth(ewPtr->tkwin)) {
    diffx = width - Tk_ReqWidth(ewPtr->tkwin);
    width = Tk_ReqWidth(ewPtr->tkwin);
  }
  if (height > Tk_ReqHeight(ewPtr->tkwin)) {
    diffy = height - Tk_ReqHeight(ewPtr->tkwin);
    height = Tk_ReqHeight(ewPtr->tkwin);
  }
  if (sticky&STICK_EAST && sticky&STICK_WEST) {
    width += diffx;
  }
  if (sticky&STICK_NORTH && sticky&STICK_SOUTH) {
    height += diffy;
  }
  if (!(sticky&STICK_WEST)) {
    x += (sticky&STICK_EAST) ? diffx : diffx/2;
  }
  if (!(sticky&STICK_NORTH)) {
    y += (sticky&STICK_SOUTH) ? diffy : diffy/2;
  }
 
  /* If we fall below a specific minimum width/height requirement,
   * we just unmap the window */
  if (width < 4 || height < 4) {
    if (ewPtr->displayed) {
      EmbWinUnmapNow(ewTkwin, tkwin);
    }
    return;
  }
 
  if (tkwin == Tk_Parent(ewTkwin)) {
    if ((x != Tk_X(ewTkwin)) || (y != Tk_Y(ewTkwin))
        || (width != Tk_Width(ewTkwin)) || (height != Tk_Height(ewTkwin))) {
      Tk_MoveResizeWindow(ewTkwin, x, y, width, height);
    }
    Tk_MapWindow(ewTkwin);
  } else {
    Tk_MaintainGeometry(ewTkwin, tkwin, x, y, width, height);
  }
  ewPtr->displayed = 1;
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinUnmapNow --
 *      Handles unmapping the window depending on parent.
 *      tkwin should be tablePtr->tkwin.
 *      ewTkwin should be ewPtr->tkwin.
 *
 * Results:
 *      Removes the window.
 *
 * Side effects:
 *      None.
 *
 *--------------------------------------------------------------
 */
static void
EmbWinUnmapNow(Tk_Window ewTkwin, Tk_Window tkwin)
{
  if (tkwin != Tk_Parent(ewTkwin)) {
    Tk_UnmaintainGeometry(ewTkwin, tkwin);
  } else {
    Tk_UnmapWindow(ewTkwin);
  }
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinUnmap --
 *      This procedure is invoked by TableAdjustParams for
 *      unmapping windows managed moved offscreen.
 *      rlo, ... should be in real coords.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Unmaps embedded windows.
 *
 *--------------------------------------------------------------
 */
void
EmbWinUnmap(Table *tablePtr, int rlo, int rhi, int clo, int chi)
{
  register TableEmbWindow *ewPtr;
  Tcl_HashEntry *entryPtr;
  int row, col;
  char buf[INDEX_BUFSIZE];
 
  /* we need to deal with things user coords */
  rlo += tablePtr->rowOffset;
  rhi += tablePtr->rowOffset;
  clo += tablePtr->colOffset;
  chi += tablePtr->colOffset;
  for (row = rlo; row <= rhi; row++) {
    for (col = clo; col <= chi; col++) {
      TableMakeArrayIndex(row, col, buf);
      if ((entryPtr = Tcl_FindHashEntry(tablePtr->winTable, buf)) != NULL) {
        ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
        if (ewPtr->displayed) {
          ewPtr->displayed = 0;
          if (ewPtr->tkwin != NULL && tablePtr->tkwin != NULL) {
            EmbWinUnmapNow(ewPtr->tkwin, tablePtr->tkwin);
          }
        }
      }
    }
  }
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinRequestProc --
 *      This procedure is invoked by Tk_GeometryRequest for
 *      windows managed by the Table.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Arranges for tkwin, and all its managed siblings, to
 *      be re-arranged at the next idle point.
 *
 *--------------------------------------------------------------
 */
static void
EmbWinRequestProc(clientData, tkwin)
    ClientData clientData;      /* Table's information about
                                 * window that got new preferred
                                 * geometry.  */
    Tk_Window tkwin;            /* Other Tk-related information
                                 * about the window. */
{
  register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData;
 
  /* resize depends on the sticky */
  if (ewPtr->displayed && ewPtr->hPtr != NULL) {
    Table *tablePtr = ewPtr->tablePtr;
    int row, col, x, y, width, height;
 
    TableParseArrayIndex(&row, &col,
                         Tcl_GetHashKey(tablePtr->winTable, ewPtr->hPtr));
    if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset,
                     col-tablePtr->colOffset, &x, &y, &width, &height, 0)) {
      TableInvalidate(tablePtr, x, y, width, height, 0);
    }
  }
}
 
static void
EmbWinRemove(TableEmbWindow *ewPtr)
{
  Table *tablePtr = ewPtr->tablePtr;
 
  ewPtr->tkwin = NULL;
  ewPtr->displayed = 0;
  if (tablePtr->tkwin != NULL) {
    int row, col, x, y, width, height;
 
    TableParseArrayIndex(&row, &col,
                         Tcl_GetHashKey(tablePtr->winTable, ewPtr->hPtr));
    if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset,
                         col-tablePtr->colOffset, &x, &y, &width, &height, 0))
      TableInvalidate(tablePtr, x, y, width, height, 1);
  }
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinLostSlaveProc --
 *      This procedure is invoked by Tk whenever some other geometry
 *      claims control over a slave that used to be managed by us.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Forgets all table-related information about the slave.
 *
 *--------------------------------------------------------------
 */
 
static void
EmbWinLostSlaveProc(clientData, tkwin)
    ClientData clientData;      /* Table structure for slave window that
                                 * was stolen away. */
    Tk_Window tkwin;            /* Tk's handle for the slave window. */
{
    register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData;
 
    Tk_DeleteEventHandler(ewPtr->tkwin, StructureNotifyMask,
                          EmbWinStructureProc, (ClientData) ewPtr);
#if 0
    Tcl_CancelIdleCall(EmbWinDelayedUnmap, (ClientData) ewPtr);
#endif
    EmbWinUnmapNow(tkwin, ewPtr->tablePtr->tkwin);
    EmbWinRemove(ewPtr);
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinStructureProc --
 *      This procedure is invoked by the Tk event loop whenever
 *      StructureNotify events occur for a window that's embedded
 *      in a table widget.  This procedure's only purpose is to
 *      clean up when windows are deleted.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      The window is disassociated from the window segment, and
 *      the portion of the table is redisplayed.
 *
 *--------------------------------------------------------------
 */
static void
EmbWinStructureProc(clientData, eventPtr)
    ClientData clientData;      /* Pointer to record describing window item. */
    XEvent *eventPtr;           /* Describes what just happened. */
{
  register TableEmbWindow *ewPtr = (TableEmbWindow *) clientData;
 
  if (eventPtr->type != DestroyNotify) {
    return;
  }
 
  EmbWinRemove(ewPtr);
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinDelete --
 *      This procedure is invoked by ... whenever
 *      an embedded window is being deleted.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      The embedded window is deleted, if it exists, and any resources
 *      associated with it are released.
 *
 *--------------------------------------------------------------
 */
void
EmbWinDelete(register Table *tablePtr, TableEmbWindow *ewPtr)
{
  Tcl_HashEntry *entryPtr;
 
  if (ewPtr->tkwin != NULL) {
    int row, col, x, y, width, height;
    entryPtr = ewPtr->hPtr;
 
    /*
     * Delete the event handler for the window before destroying
     * the window, so that EmbWinStructureProc doesn't get called
     * (we'll already do everything that it would have done, and
     * it will just get confused).
     */
 
    Tk_DeleteEventHandler(ewPtr->tkwin, StructureNotifyMask,
                          EmbWinStructureProc, (ClientData) ewPtr);
    Tk_DestroyWindow(ewPtr->tkwin);
 
    if (tablePtr->tkwin != NULL && entryPtr != NULL) {
      TableParseArrayIndex(&row, &col,
                           Tcl_GetHashKey(tablePtr->winTable, entryPtr));
      Tcl_DeleteHashEntry(entryPtr);
 
      if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset,
                           col-tablePtr->colOffset,
                           &x, &y, &width, &height, 0))
        TableInvalidate(tablePtr, x, y, width, height, 0);
    }
  }
#if 0
  Tcl_CancelIdleCall(EmbWinDelayedUnmap, (ClientData) ewPtr);
#endif
  EmbWinCleanup(tablePtr, ewPtr);
  ckfree((char *) ewPtr);
}
 
/*
 *--------------------------------------------------------------
 *
 * EmbWinConfigure --
 *      This procedure is called to handle configuration options
 *      for an embedded window, using an argc/argv list.
 *
 * Results:
 *      The return value is a standard Tcl result.  If TCL_ERROR is
 *      returned, then the interp's result contains an error message..
 *
 * Side effects:
 *      Configuration information for the embedded window changes,
 *      such as alignment, stretching, or name of the embedded
 *      window.
 *
 *--------------------------------------------------------------
 */
static int
EmbWinConfigure(tablePtr, ewPtr, argc, argv)
     Table *tablePtr;           /* Information about table widget that
                                 * contains embedded window. */
     TableEmbWindow *ewPtr;     /* Embedded window to be configured. */
     int argc;                  /* Number of strings in argv. */
     char **argv;               /* Array of strings describing configuration
                                 * options. */
{
  Tk_Window oldWindow;
 
  oldWindow = ewPtr->tkwin;
  if (Tk_ConfigureWidget(tablePtr->interp, tablePtr->tkwin, winConfigSpecs,
                         argc, argv, (char *) ewPtr, TK_CONFIG_ARGV_ONLY)
      != TCL_OK) {
    return TCL_ERROR;
  }
  if (oldWindow != ewPtr->tkwin) {
    ewPtr->displayed = 0;
    if (oldWindow != NULL) {
      Tk_DeleteEventHandler(oldWindow, StructureNotifyMask,
                            EmbWinStructureProc, (ClientData) ewPtr);
      Tk_ManageGeometry(oldWindow, (Tk_GeomMgr *) NULL,
                        (ClientData) NULL);
      EmbWinUnmapNow(oldWindow, tablePtr->tkwin);
    }
    if (ewPtr->tkwin != NULL) {
      Tk_Window ancestor, parent;
 
      /*
       * Make sure that the table is either the parent of the
       * embedded window or a descendant of that parent.  Also,
       * don't allow a top-level window to be managed inside
       * a table.
       */
 
      parent = Tk_Parent(ewPtr->tkwin);
      for (ancestor = tablePtr->tkwin; ;
           ancestor = Tk_Parent(ancestor)) {
        if (ancestor == parent) {
          break;
        }
        if (Tk_IsTopLevel(ancestor)) {
        badMaster:
          Tcl_AppendResult(tablePtr->interp, "can't embed ",
                           Tk_PathName(ewPtr->tkwin), " in ",
                           Tk_PathName(tablePtr->tkwin), (char *) NULL);
          ewPtr->tkwin = NULL;
          return TCL_ERROR;
        }
      }
      if (Tk_IsTopLevel(ewPtr->tkwin) || (ewPtr->tkwin == tablePtr->tkwin)) {
        goto badMaster;
      }
 
      /*
       * Take over geometry management for the window, plus create
       * an event handler to find out when it is deleted.
       */
 
      Tk_ManageGeometry(ewPtr->tkwin, &tableGeomType, (ClientData) ewPtr);
      Tk_CreateEventHandler(ewPtr->tkwin, StructureNotifyMask,
                            EmbWinStructureProc, (ClientData) ewPtr);
    }
  }
  return TCL_OK;
}
 
/*
 *--------------------------------------------------------------
 *
 * TableWindowCmd --
 *      This procedure is invoked to process the window method
 *      that corresponds to a widget managed by this module.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *--------------------------------------------------------------
 */
int
TableWindowCmd(Table * tablePtr, register Tcl_Interp *interp,
               int argc, char *argv[])
{
  int result = TCL_OK, retval;
  int row, col, x, y, width, height, i, new;
  TableEmbWindow *ewPtr;
  Tcl_HashEntry *entryPtr;
  Tcl_HashSearch search;
  char buf[INDEX_BUFSIZE], *keybuf;
 
  /* parse the next argument */
  retval = Cmd_Parse(interp, win_cmds, argv[2]);
  switch (retval) {
    /* failed to parse the argument, error */
  case 0:
    return TCL_ERROR;
 
  case WIN_CGET:
    if (argc != 5) {
      Tcl_AppendResult(interp, "wrong # args: should be \"",
                       argv[0], " window cget index option\"", (char *) NULL);
      return TCL_ERROR;
    }
    if ((entryPtr=Tcl_FindHashEntry(tablePtr->winTable, argv[3])) == NULL) {
      Tcl_AppendResult(interp, "no window at index \"", argv[3],
                       "\"", (char *) NULL);
      return TCL_ERROR;
    } else {
      ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
      result = Tk_ConfigureValue(interp, tablePtr->tkwin, winConfigSpecs,
                                 (char *) ewPtr, argv[4], 0);
    }
    return result;      /* CGET */
 
  case WIN_CONFIGURE:
    if (argc < 4) {
      Tcl_AppendResult(interp, "wrong # args: should be \"",
                       argv[0], " window configure index ?arg arg  ...?\"",
                       (char *) NULL);
      return TCL_ERROR;
    }
    if (TableGetIndex(tablePtr, argv[3], &row, &col) == TCL_ERROR) {
      return TCL_ERROR;
    }
    TableMakeArrayIndex(row, col, buf);
    entryPtr = Tcl_CreateHashEntry(tablePtr->winTable, buf, &new);
    if (new) {
      /* create the structure */
      ewPtr = TableNewEmbWindow(tablePtr);
 
      /* insert it into the table */
      Tcl_SetHashValue(entryPtr, (ClientData) ewPtr);
      ewPtr->hPtr = entryPtr;
 
      /* configure the window structure */
      result = EmbWinConfigure(tablePtr, ewPtr, argc-4, argv+4);
      if (result == TCL_ERROR) {
        /* release the structure */
        EmbWinCleanup(tablePtr, ewPtr);
        ckfree((char *) ewPtr);
 
        /* and free the hash table entry */
        Tcl_DeleteHashEntry(entryPtr);
        return TCL_ERROR;
      }
 
      /* if a window was specified, make sure it exists */
    } else {
      /* pointer wasn't null, do a reconfig if we have enough arguments */
      /* get the window pointer from the table */
      ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
 
      /* 5 args means that there are values to replace */
      if (argc > 5) {
        /* and do a reconfigure */
        result = EmbWinConfigure(tablePtr, ewPtr, argc-4, argv+4);
        if (result == TCL_ERROR)
          return TCL_ERROR;
      }
    }
 
    /*
     * If there were less than 6 args, we need
     * to do a printout of the config, even for new windows
     */
    if (argc < 6) {
      result = Tk_ConfigureInfo(interp, tablePtr->tkwin, winConfigSpecs,
                                (char *) ewPtr, (argc == 5)?argv[4]:0, 0);
    } else {
      /* Otherwise we reconfigured so invalidate the table for a redraw */
      if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset,
                           col-tablePtr->colOffset,
                           &x, &y, &width, &height, 0)) {
        TableInvalidate(tablePtr, x, y, width, height, 1);
      }
    }
    return result;      /* CONFIGURE */
 
  case WIN_DELETE:
    if (argc < 4) {
      Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
                       " window delete index ?index ...?\"", (char *) NULL);
      return TCL_ERROR;
    }
    for (i = 3; i < argc; i++) {
      if ((entryPtr = Tcl_FindHashEntry(tablePtr->winTable, argv[i]))!=NULL) {
        /* get the window pointer */
        ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
 
        EmbWinDelete(tablePtr, ewPtr);
      }
    }
    /* clear up anything that might have been placed in the result string */
    Tcl_SetResult(interp, "", TCL_STATIC);
    return result;
 
  case WIN_MOVE:
    if (argc != 5) {
      Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
                       " window move oldIndex newIndex\"", (char *) NULL);
      return TCL_ERROR;
    }
    if (TableGetIndex(tablePtr, argv[3], &x, &y) == TCL_ERROR ||
        TableGetIndex(tablePtr, argv[4], &row, &col) == TCL_ERROR) {
      return TCL_ERROR;
    }
    TableMakeArrayIndex(x, y, buf);
    if ((entryPtr = Tcl_FindHashEntry(tablePtr->winTable, buf)) == NULL) {
      Tcl_AppendResult(interp, "no window at index \"", argv[3],
                       "\"", (char *) NULL);
      return TCL_ERROR;
    }
    /* avoid moving it to the same location */
    if (x == row && y == col) {
      return TCL_OK;
    }
    /* get the window pointer */
    ewPtr = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
    /* and free the old hash table entry */
    Tcl_DeleteHashEntry(entryPtr);
 
    TableMakeArrayIndex(row, col, buf);
    entryPtr = Tcl_CreateHashEntry(tablePtr->winTable, buf, &new);
    if (!new) {
      /* window already there - just delete it */
      TableEmbWindow *ewPtrDel;
 
      ewPtrDel = (TableEmbWindow *) Tcl_GetHashValue(entryPtr);
      /* This prevents the deletion of it's own entry, since we need it */
      ewPtrDel->hPtr = NULL;
      EmbWinDelete(tablePtr, ewPtrDel);
    }
    /* set the new entry's value */
    Tcl_SetHashValue(entryPtr, (ClientData) ewPtr);
    ewPtr->hPtr = entryPtr;
 
    /* Invalidate old cell */
    if (TableCellVCoords(tablePtr, x-tablePtr->rowOffset,
                         y-tablePtr->colOffset,
                         &x, &y, &width, &height, 0)) {
      TableInvalidate(tablePtr, x, y, width, height, 0);
    }
    /* Invalidate new cell */
    if (TableCellVCoords(tablePtr, row-tablePtr->rowOffset,
                         col-tablePtr->colOffset,
                         &x, &y, &width, &height, 0)) {
      TableInvalidate(tablePtr, x, y, width, height, 0);
    }
    break;
 
  case WIN_NAMES:
    /* just print out the image names */
    if (argc != 3 && argc != 4) {
      Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
                       " window names ?pattern?\"", (char *) NULL);
      return TCL_ERROR;
    }
    entryPtr = Tcl_FirstHashEntry(tablePtr->winTable, &search);
    while (entryPtr != NULL) {
      keybuf = Tcl_GetHashKey(tablePtr->winTable, entryPtr);
      if (argc == 3 || Tcl_StringMatch(keybuf, argv[3]))
        Tcl_AppendElement(interp, keybuf);
      entryPtr = Tcl_NextHashEntry(&search);
    }
    Tcl_SetResult(interp,
                  TableCellSort(tablePtr, Tcl_GetStringResult(interp)),
                  TCL_DYNAMIC);
    break;
  }
  return TCL_OK;
}
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[/] [or1k/] [tags/] [start/] [insight/] [libgui/] [src/] [tkTableWin.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	578	markom	`/*`
2			`* tkTableWin.c --`
3			`*`
4			`* This module implements embedded windows for table widgets.`
5			`* Much of this code is adapted from tkGrid.c and tkTextWind.c.`
6			`*`
7			`* Copyright (c) 1998 Jeffrey Hobbs`
8			`*`
9			`* See the file "license.terms" for information on usage and redistribution`
10			`* of this file, and for a DISCLAIMER OF ALL WARRANTIES.`
11			`*`
12			`*/`
13
14			`#include "tkTable.h"`
15
16			`static int StickyParseProc _ANSI_ARGS_((ClientData clientData,`
17			`Tcl_Interp interp, Tk_Window tkwin, char value,`
18			`char *widgRec, int offset));`
19			`static char * StickyPrintProc _ANSI_ARGS_((ClientData clientData,`
20			`Tk_Window tkwin, char *widgRec, int offset,`
21			`Tcl_FreeProc **freeProcPtr));`
22
23			`static void EmbWinLostSlaveProc _ANSI_ARGS_((ClientData clientData,`
24			`Tk_Window tkwin));`
25			`static void EmbWinRequestProc _ANSI_ARGS_((ClientData clientData,`
26			`Tk_Window tkwin));`
27
28			`static void EmbWinCleanup _ANSI_ARGS_((Table *tablePtr,`
29			`TableEmbWindow *ewPtr));`
30			`static int EmbWinConfigure _ANSI_ARGS_((Table *tablePtr,`
31			`TableEmbWindow *ewPtr,`
32			`int argc, char **argv));`
33			`static void EmbWinStructureProc _ANSI_ARGS_((ClientData clientData,`
34			`XEvent *eventPtr));`
35			`static void EmbWinUnmapNow _ANSI_ARGS_((Tk_Window ewTkwin,`
36			`Tk_Window tkwin));`
37
38			`static Tk_GeomMgr tableGeomType = {`
39			`"table", /* name */`
40			`EmbWinRequestProc, /* requestProc */`