Logo Search packages:      
Sourcecode: magic version File versions  Download package

grTk1.c

/* grTk1.c
 *
 * Copyright 2003 Open Circuit Design, Inc., for MultiGiG Ltd.
 *
 * This file contains primitive functions to manipulate an X window system
 * Included here are initialization and closing
 * functions, and several utility routines used by the other X
 * modules.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <fcntl.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>

#include "tcltk/tclmagic.h"
#include "utils/main.h"
#include "utils/magic.h"
#include "utils/malloc.h"
#include "utils/magsgtty.h"
#include "utils/geometry.h"
#include "windows/windows.h"
#include "graphics/graphics.h"
#include "graphics/graphicsInt.h"
#include "textio/textio.h"
#include "textio/txcommands.h"
#include "utils/signals.h"
#include "tiles/tile.h"
#include "utils/utils.h"
#include "utils/hash.h"
#include "database/database.h"
#include "drc/drc.h"
#include "utils/macros.h"
#include "grTkInt.h"
#include "utils/paths.h"
#include "graphics/grTkCommon.h"

GR_CURRENT grCurrent = {
      (Tk_Font)0, 0, 0, 0, 0, 0,
      (MagWindow *)NULL
};

GR_DISPLAY grDisplay;

GC grGCFill, grGCText, grGCDraw, grGCCopy, grGCGlyph, grGCStipple;
Visual   *grVisual;
int      grClass;
Colormap grXcmap;

extern char *DBWStyleType;
unsigned long grPixels[256];
unsigned long grPlanes[256];
XColor   colors[256*3]; /* Unique colors used by Magic */

Pixmap *grTkStipples;
HashTable   grTkWindowTable;
/* locals */

00065 typedef struct {
    char dashlist[8];
    int  dlen;
} LineStyle;

static LineStyle LineStyleTab[256];

#define grMagicToXs(n) (DisplayHeight(grXdpy,grXscrn)-(n))
#define grXsToMagic(n) (DisplayHeight(grXdpy,grXscrn)-(n))

extern bool GrTkInstalledCMap;

/* machine-dependent constants - see below */
#ifdef macosx
#define X_COLORMAP_BASE       128
#define X_COLORMAP_RESERVED   4
#else
#if defined(CYGWIN)
#define X_COLORMAP_BASE       128
#define X_COLORMAP_RESERVED   0
#else
#define X_COLORMAP_BASE       0
#define X_COLORMAP_RESERVED   2
#endif
#endif

/* This is kind of a long story, and very kludgy, but the following
 * things need to be defined as externals because of the way lint
 * libraries are made by taking this module and changing all procedures
 * names "Xxxx" to "Grxxx".  The change is only done at the declaration
 * of the procedure, so we need these declarations to handle uses
 * of those names, which don't get modified.  Check out the Makefile
 * for details on this.
 */
extern void GrTkClose(), GrTkFlush();
extern void GrTkDelete(),GrTkConfigure(),GrTkRaise(),GrTkLower();
extern void GrTkLock(),GrTkUnlock(),GrTkIconUpdate();
extern bool GrTkInit();
extern bool GrTkEventPending(), GrTkCreate(), grtkGetCursorPos();
extern int  GrTkWindowId();
extern char *GrTkWindowName();


/*---------------------------------------------------------
 * grtkSetWMandC:
 *    This is a local routine that resets the value of the current
 *    write mask and color, if necessary.
 *
 * Results: None.
 *
 * Side Effects:    None.
 *
 * Errors:        None.
 *---------------------------------------------------------
 */

void
grtkSetWMandC (mask, c)
    long mask;                /* New value for write mask */
    int c;              /* New value for current color */
{
    static int oldC = -1;
    static int oldM = -1;

    c = grPixels[c];
    if(grDisplay.depth <= 8) {
      mask = grPlanes[mask];
      if (mask == -65) mask = AllPlanes;
    }
    else {
      mask = AllPlanes;
    }
    if (oldC == c && oldM == mask) return;

    GR_TK_FLUSH_BATCH();
    XSetPlaneMask(grXdpy,grGCFill,mask);
    XSetPlaneMask(grXdpy,grGCDraw,mask);
    XSetPlaneMask(grXdpy,grGCText,mask);
    XSetForeground(grXdpy,grGCFill,c);
    XSetForeground(grXdpy,grGCDraw,c);
    XSetForeground(grXdpy,grGCText,c);
    oldC = c;
    oldM = mask;
}


/*---------------------------------------------------------
 * grtkSetLineStyle:
 *    This local routine sets the current line style.
 *
 * Results: None.
 *
 * Side Effects:
 *    A new line style is output to the display.
 *
 *---------------------------------------------------------
 */

void
grtkSetLineStyle (style)
    int style;                /* New stipple pattern for lines. */
{
    static int oldStyle = -1;
    LineStyle *linestyle;
    int xstyle;

    style &= 0xFF;
    if (style == oldStyle) return;
    oldStyle = style;
    GR_TK_FLUSH_BATCH();

    switch (style) {
    case 0xFF:
    case 0x00:
      xstyle = LineSolid;
      break;
    default:
      xstyle = LineOnOffDash;
      linestyle = &LineStyleTab[style];
      if (linestyle->dlen == 0) {

          /* translate style to an X11 dashlist */

          char *e;
          int cnt,offset,cur,new,curnew,i,match;

          e = linestyle->dashlist;
          cnt = 0;
          offset = 1;
          cur = 0;
          for (i = 7; i >= 0; i--) {
            new = (style >> i) & 1;
            curnew = (cur << 1) | new;
            switch (curnew) {
            case 0:
            case 3:
                cnt++;
                break;
            case 1:
                if (cnt > 0) *e++ = cnt; else offset = 0;
                cnt = 1;
                break;
            case 2:
                *e++ = cnt;
                cnt = 1;
                break;
            }
            cur = new;
          }
          *e++ = cnt;
          cnt = e - linestyle->dashlist;
          if (offset) {
            cur = e[0];
            for (i = 0; i < cnt-1; i++) e[i] = e[i+1];
            e[cnt-1] = cur;
          }
          match = 1;
          do {
            if (cnt % 2) break;
            for (i = 0; i < cnt/2; i++) {
                if (e[i] != e[cnt/2 + i]) match = 0;
            }
            if (match == 0) break;
            cnt = cnt/2;
          } while (match);
          linestyle->dlen = cnt;
      }
      XSetDashes(grXdpy, grGCDraw, 0,
               linestyle->dashlist, linestyle->dlen);
    }
#ifdef      OLD_XFREE
    /* Bypass bug in XFree-2.x server */
    XSetLineAttributes(grXdpy, grGCDraw, 1,
                   xstyle, CapNotLast, JoinMiter);
#else
    XSetLineAttributes(grXdpy, grGCDraw, 0,
                   xstyle, CapNotLast, JoinMiter);
#endif
}


/*---------------------------------------------------------
 * grtkSetSPattern:
 *    xSetSPattern associates a stipple pattern with a given
 *    stipple number.  This is a local routine called from
 *    grStyle.c .
 *
 * Results: None.
 *
 * Side Effects:    None.
 *---------------------------------------------------------
 */

void
grtkSetSPattern (sttable, numstipples)
    int **sttable;                  /* The table of patterns */
    int numstipples;                /* Number of stipples */
{
    Tk_Window tkwind;
    Window xwid;
    Pixmap p;
    int i, x, y, pat;

    tkwind = Tk_MainWindow(magicinterp);

    /* This routine may be executed before Tk tells X11 to create the   */
    /* main window.  So if no X11 window ID is registered, force the    */
    /* window creation and update.                          */

    if (tkwind == 0 || Tk_WindowId(tkwind) == 0)
      Tk_MakeWindowExist(tkwind);
    xwid = Tk_WindowId(tkwind);

    grTkStipples = (Pixmap *)mallocMagic(numstipples * sizeof(Pixmap));
    for (i = 0; i < numstipples; i++)
    {
      p = Tk_GetPixmap(grXdpy, xwid, 8, 8, 1);
      if (grGCStipple == NULL) {
          /* grGCStipple = Tk_GetGC(tkwind, 0, 0); */
          grGCStipple = XCreateGC(grXdpy, p, 0, 0);
      }
      for (y = 0; y < 8; y++) {
          pat = sttable[i][y];
          for (x = 0; x < 8; x++) {
            XSetForeground(grXdpy, grGCStipple, pat & 1);
            XDrawPoint(grXdpy, p, grGCStipple, x, y);
            pat >>= 1;
          }
      }
      grTkStipples[i] = p;
    }
}


/*---------------------------------------------------------
 * grtkSetStipple:
 *    This routine sets the Xs current stipple number.
 *
 * Results: None.
 *
 * Side Effects:
 *    The current clipmask in the X is set to stipple,
 *    if it wasn't that already.
 *---------------------------------------------------------
 */

void
grtkSetStipple (stipple)
    int stipple;              /* The stipple number to be used. */
{
    static int oldStip = -1;
    if (stipple == oldStip) return;
    oldStip = stipple;
    GR_TK_FLUSH_BATCH();
    if (stipple == 0 || stipple > grNumStipples) {
      XSetFillStyle(grXdpy, grGCFill, FillSolid);
    } else {
      if (grTkStipples[stipple] == 0) MainExit(1);
      XSetStipple(grXdpy, grGCFill, grTkStipples[stipple]);
      XSetFillStyle(grXdpy, grGCFill, FillStippled);
    }
}


/*---------------------------------------------------------
 * GrTkInit:
 *
 *    GrTkInit initializes the graphics display.  The depth
 *    of the display is queried from the server, and the
 *    "best" visual selected.  The environment variable
 *    "MAGIC_COLOR" can override this choice.  A colormap
 *    is selected based on the visual type, but will be
 *    filled in later.
 *
 * Results: TRUE if successful.
 *---------------------------------------------------------
 */

#define visual_table_len  7

bool
GrTkInit(dispType)
    char *dispType;
{
    int i,j;
    XVisualInfo grvisual_info, *grvisual_get, grtemplate;
    VisualID defpsvid;
    int defpsindex = -1;
    int gritems, gritems_list, grcolorCount;
    bool rstatus;
    Window xwind;

    const char *visual_type[] = {
        "StaticGrey",
        "GreyScale",
        "StaticColor",
        "PseudoColor",
        "TrueColor",
        "DirectColor",
        "UNKNOWN"
    };

    int visual_table[visual_table_len];
    char *log_color, *env_str;
    int color_base, color_reserved;
    int status;

    grCurrent.window = Tk_MainWindow(magicinterp);

    if (grCurrent.window == NULL)
    {
       TxError("No Top-Level Tk window available. . . is Tk running?\n");
       return FALSE;
    }

    grXdpy = Tk_Display(grCurrent.window);
    grDisplay.depth = Tk_Depth(grCurrent.window);
    grCurrent.windowid = Tk_WindowId(grCurrent.window);
    grXscrn = Tk_ScreenNumber(grCurrent.window);

    /* The idea here is to first try allocating the required
     * planes out of the default colormap.  This is the kindest,
     * gentlest thing to do because it doesn't cause all the other
     * windows to go technicolor when the cursor is in a magic window.
     * If this fails, we go ahead and allocate a colormap specifically
     * for magic.  The problem now is using this colormap in such
     * a way that the other windows' colors get mangled the least.
     * Unfortunately, doing this is X-server dependent.  This is where
     * the constants above come in.  X_COLORMAP_BASE indicates
     * which part of the colormap (assuming the number of planes
     * required is less than the number of planes in the display)
     * to fill in the colors magic requires.  X_COLORMAP_RESERVED
     * tells how many high-end colors the server won't let us touch;
     * if we even try to query these colors, we get an X error.
     * If, starting at X_COLORMAP_BASE, the number of colors required
     * would push us into the top X_COLORMAP_RESERVED colors, then
     * we won't be able to set all the colors the user wanted us
     * to set.  The top colors will remain identical to those
     * in the default colormap.
     */
      
    grXcmap = XDefaultColormap(grXdpy,grXscrn);

    /* Discover properties of Server.  */

    grVisual = XDefaultVisual(grXdpy, grXscrn);
    defpsvid = XVisualIDFromVisual(grVisual);
    grtemplate.screen = grXscrn;
    grtemplate.depth = 0; 
    grvisual_get = XGetVisualInfo(grXdpy, VisualScreenMask, &grtemplate, &gritems);
    if (grvisual_get == NULL)
    {
      TxPrintf("Could not obtain Visual Info from Server %s. Will attempt default.\n",
              getenv("DISPLAY"));
      grDisplay.depth = 8;
      grDisplay.colorCount = 1 << grDisplay.depth;
    }
    else
    {
      gritems_list = gritems;
      for (gritems = 0; gritems < gritems_list; gritems++)
      {
          j = grvisual_get[gritems].class;
          if ( j < 0 || j > 5)
          {
            TxPrintf("Unknown visual class index: %d\n", j);
            j = 6;
          }
          if ((grvisual_get[gritems].class == 3) &&
                  (grvisual_get[gritems].visualid == defpsvid))
            defpsindex = gritems;
         }

      /* Unfortunately, the list returned by Xservers has classes in
       * random order.  Therefore, a search is needed to find a good
       * choice. The only currently supported classes are PseudoColor
       * at depth 8 and TrueColor at depth 15, 16, and 24.  It is likely
       * that TrueColor depths 8 through 32 will work, but these have
       * not been tested.  In addition, it has been discovered that some
       * SUN systems "offer" more than one Pseudocolor at depth 8, but
       * with differing colormap sizes.  There is nothing about how to
       * handle this in the X11 documentation, so the search below chooses
       * the "first" class. The class with 256 colors seems preferable and
       * works at present. The second Pseudocolor in the list gives a
       * BatMatch reject from the server, so it is useless. Basing the
       * selection on 256 colors might be effective, but might conflict in
       * other cases... As usual X11 is just guesswork.  At present the
       * preferred order is: PseudoColor at 8, then TrueColor at 24,
       * then TrueColor at 16, ... Unless this is overridden by the
       * MAGIC_COLOR environment variable, which can be: bw, 8, 16, 24
       */

      for (j = 0; j < visual_table_len; j++)
          visual_table[j] = -1;
      for (j = 0; j < gritems_list; j++)
      {
          if ((grvisual_get[j].class == 0) && (grvisual_get[j].depth == 8)
                  && (visual_table[1] == -1))
            visual_table[1] = j; /* StaticGrey */
          if ((grvisual_get[j].class == 1) && (grvisual_get[j].depth == 8)
                  && (visual_table[2] == -1))
            visual_table[2] = j; /* GreyScale */
          if ((grvisual_get[j].class == 3) && (grvisual_get[j].depth == 8)
                  && (visual_table[3] == -1))
            visual_table[3] = j; /* Psuedocolor */
          if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 15)
                  && (visual_table[4] == -1))
            visual_table[4] = j; /* TrueColor */
          if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 16)
                  && (visual_table[5] == -1))
            visual_table[5] = j; /* TrueColor */
          if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 24)
                  && (visual_table[6] == -1))
            visual_table[6] = j; /* TrueColor */
      }
      if (defpsindex != -1)
          visual_table[3] = defpsindex;
      log_color = getenv("MAGIC_COLOR");

      if ((log_color == NULL) && (dispType != NULL) && (dispType[0] != 'X'))
          log_color = dispType;

       /* Allow environment variables to override the colormap base and */
       /* number of reserved colors, as these depend on the terminal X  */
       /* server, NOT on the machine running magic.                 */
       /* Note:  ought to use strtod() in place of atoi().          */

      env_str = getenv("X_COLORMAP_BASE");
      if (env_str != NULL)
          color_base = (int)atoi(env_str);
      else
          color_base = X_COLORMAP_BASE;
      env_str = getenv("X_COLORMAP_RESERVED");
      if (env_str != NULL)
          color_reserved = (int)atoi(env_str);
      else
          color_reserved = X_COLORMAP_RESERVED;
       
      gritems = -1;
      if (log_color != NULL)
      {
          if (strncmp(log_color, "8", 1) == 0)  gritems = visual_table[3];
          if (strncmp(log_color, "15", 2) == 0) gritems = visual_table[4];
          if (strncmp(log_color, "16", 2) == 0) gritems = visual_table[5];
          if (strncmp(log_color, "24", 2) == 0) gritems = visual_table[6];
          if (gritems == -1)
          {
            printf("The visual mode %s is not available. Sorry.\n", log_color);
            XFree(grvisual_get);
            MainExit(1);
          }
      }
      else
      {
          if (visual_table[3] != -1)      gritems = visual_table[3];
          else if (visual_table[6] != -1) gritems = visual_table[6];
          else if (visual_table[5] != -1) gritems = visual_table[5];
          else if (visual_table[4] != -1) gritems = visual_table[4];
      }
      if (gritems == -1) {
          TxPrintf("None of TrueColor 15, 16 or 24, or PseudoColor 8 found. "
                  "Cannot initialize DISPLAY %s\n", getenv("DISPLAY"));
          XFree(grvisual_get);
          MainExit(1);
      }
      else
      {
          TxPrintf("Using %s, VisualID 0x%x depth %d\n",
            visual_type[grvisual_get[gritems].class],
            grvisual_get[gritems].visualid,
            grvisual_get[gritems].depth);
      }
      grClass         = grvisual_get[gritems].class;
      grVisual        = grvisual_get[gritems].visual;
      grcolorCount    = grvisual_get[gritems].colormap_size;
      grDisplay.depth = grvisual_get[gritems].depth;
      grDisplay.red_mask      = grvisual_get[gritems].red_mask;
      grDisplay.green_mask    = grvisual_get[gritems].green_mask;
      grDisplay.blue_mask     = grvisual_get[gritems].blue_mask;
      grDisplay.colorCount    = grcolorCount;
    }
    XFree(grvisual_get);
    grDisplay.planeCount = grDisplay.depth;
    grDisplay.realColors = grDisplay.colorCount;

    if (grDisplay.planeCount == 8)
    {
      grDisplay.depth = 7;
      grDisplay.planeCount = 7;      /* This resets to old 7-plane mode */
      grDisplay.colorCount = 1 << (grDisplay.planeCount);
      grDisplay.realColors = grDisplay.colorCount;
    }
    if (grDisplay.depth)
    {
      status = 0;
      if (grClass != 4)
          status= XAllocColorCells(grXdpy, grXcmap, TRUE, grDisplay.planes,   
                  grDisplay.planeCount, &grDisplay.basepixel, 1); 
      if (status == 0) 
      {
        /*
         * Ok, we tried to be nice; now lets whack the default colormap
         * and put in one of our own.
         */

          int actualColors = grcolorCount;
          int usableColors = actualColors - color_reserved;

          /* Need the window ID.  If grCurrent.window is not a valid window, */
          /* Use the default Tk main window.                            */

          xwind = grCurrent.windowid;
          if (xwind == 0)
          {
            xwind = Tk_WindowId(Tk_MainWindow(magicinterp));
            if (xwind == 0)  
                xwind = DefaultRootWindow(grXdpy);
          }

          if (usableColors > 256) usableColors = 256;
          if (grClass != 4)
            TxPrintf("Unable to allocate %d planes in default colormap; "
                   "making a new one.\n", grDisplay.planeCount);
#ifdef MAGIC_WRAPPER
          if (grClass == 3) GrTkInstalledCMap = TRUE;
#endif
          if (grDisplay.planeCount <= 8)
          {
            grDisplay.basepixel = color_base;
            grXcmap = XCreateColormap(grXdpy, xwind, grVisual, AllocAll);
          }
          else {
            grDisplay.basepixel = 0;
            grXcmap = XCreateColormap(grXdpy, xwind, grVisual, AllocNone);
          }

          for (j = 0; j < grDisplay.planeCount; j++) grDisplay.planes[j] = 1 << j;
          status = 1;
          for (i = 0; i < usableColors; i++) colors[i].pixel = i;
          XQueryColors(grXdpy, XDefaultColormap(grXdpy, grXscrn),
                        colors, usableColors);
          if (grDisplay.planeCount <= 8)
            XStoreColors(grXdpy, grXcmap, colors, usableColors);
          grDisplay.realColors = (grDisplay.basepixel +
                  grDisplay.colorCount > usableColors) ?
                  usableColors - grDisplay.basepixel: grDisplay.colorCount;
          if ((grDisplay.realColors != grDisplay.colorCount)
                  && (grDisplay.planeCount <= 8))
          {
            TxPrintf("Only %d contiguous colors were available.\n",
                  grDisplay.realColors);
            grDisplay.colorCount = grDisplay.realColors;
          }
      }
                        
      if (grXcmap == 0 || status ==0) 
      {
          TxError( "Tk/X11 setup: Unable to allocate %d planes\n",
            grDisplay.planeCount);
          MainExit(1);
      }
    }

    /* There is a non-obvious mapping between plane depth and the names */
    /* of the corresponding style and cmap filenames to load for each   */
    /* display type.                                                    */

    switch(grDisplay.depth) {
        case 0: case 1:
            grDStyleType = "bw";
            grCMapType = NULL;
            /* This must be called here;  because in B/W the colormap   */
            /* is useless, it will not be called by the style file      */
            /* load procedure.                                          */
            GrTkSetCMap();
            break;
        case 7: case 8:
            grDStyleType = "7bit";
            grCMapType = "7bit";
            break;
        default:
            grDStyleType = "24bit";
            grCMapType = "24bit";
            break;
    }

    /* Globally-accessed variables */
    grNumBitPlanes = grDisplay.depth;
    grBitPlaneMask = (1 << grDisplay.depth) - 1;

    HashInit(&grTkWindowTable,8,HT_WORDKEYS);
    rstatus = grTkLoadFont();
    return rstatus;
}

/*---------------------------------------------------------
 * GrTkClose:
 *
 * Results:
 *    None.
 *
 * Side Effects:
 *    Frees fonts from the Tk font cache.
 *---------------------------------------------------------
 */

void
GrTkClose ()
{
    int i;

    if (grXdpy == NULL) return;

    XFreeGC(grXdpy, grGCStipple);
    grGCStipple = NULL;

    /* Free Tk fonts from the font cache */
    grTkFreeFonts();

    /* XCloseDisplay(grXdpy); */  /* Pop down Tk window but let Tcl/Tk  */
                          /* do XCloseDisplay()             */
}


/*---------------------------------------------------------
 * GrTkFlush:
 *    Flush output to display.
 *
 *    Flushing is done automatically the next time input is read,
 *    so this procedure should not be used very often.
 *
 * Results: None.
 *
 * Side Effects:    None.
 *---------------------------------------------------------
 */

void
GrTkFlush ()
{
    GR_TK_FLUSH_BATCH();
}


/*
 * ---------------------------------------------------------------------------
 *
 * MagicEventProc ---
 *
 *    Tk Event Handler
 *
 * Results:
 *      None.
 *
 * Side Effects:
 *      Calls functions in response to Tk events.
 *
 * ---------------------------------------------------------------------------
 */

void
MagicEventProc(clientData, xevent)
    ClientData clientData;
    XEvent *xevent;
{
    HashEntry     *entry;
    Tk_Window wind = (Tk_Window)clientData;
    MagWindow *mw;
    unsigned char LocRedirect = TxInputRedirect;

    XKeyPressedEvent *KeyPressedEvent = (XKeyPressedEvent *) xevent;
    KeySym keysym;
    int nbytes;

    /* Keys and Buttons:  Determine expansion of macros or redirect
     * keys to the terminal/console.
     */

    switch (xevent->type) 
    {
      case ButtonPress:
          {
            XButtonEvent *ButtonEvent = (XButtonEvent *) xevent;
            int txbutton;

            switch (ButtonEvent->button) {
            case Button1:
                txbutton = TX_LEFT_BUTTON;
                keysym = XK_Pointer_Button1;
                break;
            case Button2:
                txbutton = TX_MIDDLE_BUTTON;
                keysym = XK_Pointer_Button2;
                break;
            case Button3:
                txbutton = TX_RIGHT_BUTTON;
                keysym = XK_Pointer_Button3;
                break;
            case Button4:
                txbutton = TX_BUTTON_4;
                keysym = XK_Pointer_Button4;
                break;
            case Button5:
                txbutton = TX_BUTTON_5;
                keysym = XK_Pointer_Button5;
                break;
            }
            nbytes = 0;

            entry = HashLookOnly(&grTkWindowTable, wind);
            mw = (entry)?(MagWindow *)HashGetValue(entry):0;

            /* Hack---non-wrapper versions of magic have    */
            /* fixed handlers for the frame.          */
            if (mw && (mw->w_flags & WIND_SCROLLBARS))
                if (WindButtonInFrame(mw, ButtonEvent->x,
                        grXToMagic(ButtonEvent->y),
                        txbutton))
                  break;

            goto keys_and_buttons;
          }
          break;
      case KeyPress:
          {
            int keywstate, keymod, idx, idxmax;
            char inChar[10];
            Tcl_Channel outChannel = Tcl_GetStdChannel(TCL_STDOUT);

            nbytes = XLookupString(KeyPressedEvent, inChar, sizeof(inChar),
                  &keysym, NULL);

            if (IsModifierKey(keysym)) break;   /* Don't handle modifiers */

            entry = HashLookOnly(&grTkWindowTable, wind);
            mw = (entry)?(MagWindow *)HashGetValue(entry):0;

keys_and_buttons:
            grCurrent.window = wind;
            grCurrent.windowid = Tk_WindowId(wind);
            grCurrent.mw = mw;

            keymod = (LockMask | ControlMask | ShiftMask)
                        & KeyPressedEvent->state;
#ifdef macosx
            if (KeyPressedEvent->state & (Mod1Mask | Mod2Mask |
                        Mod3Mask | Mod4Mask | Mod5Mask))
                keymod |= Mod1Mask;
#else
                keymod |= (Mod1Mask & KeyPressedEvent->state);
#endif

            if (nbytes == 0)
            {
                /* No ASCII equivalent */
                keywstate = (keymod << 16) | (keysym & 0xffff);
            }
            else if (!strncmp(XKeysymToString(keysym), "KP_", 3))
            {
                /* keypad key (special case---would like to       */
                /* differentiate between shift-KP-# and # itself) */
                keymod &= ~ShiftMask;
                keywstate = (keymod << 16) | (keysym & 0xffff);
                nbytes = 0;
            }
            else              /* ASCII-valued character */
            {
                if (!(keymod & (LockMask | Mod1Mask))) {
                  if (!(keymod & ControlMask))
                      keymod &= ~ShiftMask;
                  else if (!(keymod & ShiftMask))
                      keymod &= ~ControlMask;
                }
            }

            idxmax = (nbytes == 0) ? 1 : nbytes;
            for (idx = 0; idx < idxmax; idx++)
            {
                if (inChar[idx] == 3)     /* Ctrl-C interrupt */
                {
                  if (SigInterruptPending)
                      MainExit(0);        /* double Ctrl-C */
                  else
                      sigOnInterrupt(0);        /* Set InterruptPending */
                  TxError("Tk Caught Ctrl-C Interrupt\n");
                  TxFlush();
                  /* MainExit(0); */
                  break;
                }
                else if (nbytes > 0)
                {
                  if ((keymod & ControlMask) && (inChar[idx] < 32))
                      inChar[idx] += 'A' - 1;

                  keywstate = (keymod << 16) | ((int)inChar[idx] & 0xff);
                }

                /* Allow buttons to bypass the console and be     */
                /* treated as macros.                       */
 
                if (LocRedirect == TX_INPUT_REDIRECTED)
                {  
                  switch (keysym)
                  {
                      case XK_Pointer_Button1:
                      case XK_Pointer_Button2:
                      case XK_Pointer_Button3:
                      case XK_Pointer_Button4:
                      case XK_Pointer_Button5:
                        LocRedirect = TX_INPUT_NORMAL;;
                        break;
                  }
                }

                if ((LocRedirect == TX_INPUT_REDIRECTED) && TxTkConsole)
                {
                  Tcl_SavedResult state;
                  static char outstr[] = "::tkcon::Insert .text \"x\" ";
                  /* Translate Control-H to BackSpace */
                  if ((keymod & ControlMask) && (keysym == XK_h))
                      keysym = XK_BackSpace;

                  switch (keysym)
                  {
                      case XK_Return:
                          TxSetPoint(KeyPressedEvent->x,
                              grXToMagic(KeyPressedEvent->y),
                              grCurrent.mw->w_wid);
                        TxInputRedirect = TX_INPUT_PROCESSING;
                        Tcl_EvalEx(consoleinterp, "::tkcon::Eval .text",
                                    19, 0);
                        TxInputRedirect = TX_INPUT_NORMAL;
                        TxSetPrompt('%');

                        Tcl_SaveResult(magicinterp, &state);
                        Tcl_EvalEx(magicinterp, "history event 0", 15,
                                    0);
                        MacroDefine(mw->w_client, (int)'.',
                              Tcl_GetStringResult(magicinterp),
                              FALSE);
                        Tcl_RestoreResult(magicinterp, &state);
                        break;
                      case XK_Up:
                        Tcl_EvalEx(consoleinterp, "::tckon::Event -1",
                                    17, 0);
                        break;
                      case XK_Down:
                        Tcl_EvalEx(consoleinterp, "::tckon::Event 1",
                                    16, 0);
                        break;
                      case XK_Left:
                        Tcl_EvalEx(consoleinterp, ".text mark set insert "
                              "insert-1c ; .text see insert", 50, 0);
                        break;
                      case XK_Right:
                        Tcl_EvalEx(consoleinterp, ".text mark set insert "
                              "insert+1c ; .text see insert", 50, 0);
                        break;
                      case XK_BackSpace: case XK_Delete:
                        Tcl_EvalEx(consoleinterp, ".text delete insert-1c ; "
                              ".text see insert", 41, 0);
                        break;
                      case XK_quotedbl: case XK_backslash: case XK_bracketleft:
                        outstr[23] = '\\';
                        outstr[24] = inChar[idx];
                        outstr[25] = '\"';
                        Tcl_EvalEx(consoleinterp, outstr, 26, 0);
                        outstr[24] = '\"';
                        outstr[25] = '\0';
                      default:
                        outstr[23] = inChar[idx];
                        Tcl_EvalEx(consoleinterp, outstr, 25, 0);
                        break;
                  }
                }
                else if (LocRedirect == TX_INPUT_REDIRECTED)
                {
                  int tl;     
                  if (TxBuffer == NULL)
                  {
                      TxBuffer = Tcl_Alloc(2);
                      *TxBuffer = '\0';
                      tl = 0;
                  }
                  else
                  {
                      tl = strlen(TxBuffer);
                      TxBuffer = Tcl_Realloc(TxBuffer, tl + 2);
                  }
                  if (keysym == XK_BackSpace || keysym == XK_Delete)
                  {
                      if (tl >= 0)
                      {
                        if (tl > 0)
                        {
                              *(TxBuffer + tl - 1) = '\0';
                            TxPrintf("\b");
                        }
                        TxPrintf(" \b");
                        TxFlushOut();
                      }
                  }
                  else if (keysym == XK_Return)
                  {
                      *(TxBuffer + tl) = '\n';
                      *(TxBuffer + tl + 1) = '\0';
                      if (tl != 0) MacroDefine(mw->w_client, (int)'.',
                              TxBuffer, FALSE);
                      TxInputRedirect = TX_INPUT_NORMAL;
                      TxSetPoint(KeyPressedEvent->x,
                              grXToMagic(KeyPressedEvent->y),
                              grCurrent.mw->w_wid);
                      TxPrintf("\n");
                      TxFlushOut();
                      Tcl_NotifyChannel(Tcl_GetStdChannel(TCL_STDIN),
                              TCL_READABLE);
                  }
                  else
                  {
                      *(TxBuffer + tl) = *(inChar + idx);
                      *(TxBuffer + tl + 1) = '\0';
                      TxPrintf("%c", *(inChar + idx));
                      TxFlushOut();
                  }
                }
                else if ((keywstate == (int)TX_LONG_CMD)
                        || (keywstate == (int)TX_LONG_CMD2))
                {
                  /* Redirect input into the interpreter's terminal window */
                  TxInputRedirect = TX_INPUT_REDIRECTED;
                  if (TxTkConsole)
                      TxSetPrompt(':');
                  else
                  {
                      TxPrintf("\b\b: ");
                      TxFlushOut();
                  }
                }
                else
                {
                  bool iMacro;
                  char *macroDef;

                  macroDef = MacroRetrieve(mw->w_client, keywstate, &iMacro);
                  macroDef = MacroSubstitute(macroDef, "%W", Tk_PathName(wind));

                  if (macroDef == NULL)
                  {
                      if (keysym != XK_Return)
                      {
                        char *vis = MacroName(keywstate);
                        TxError("Unknown macro or short command: '%s'\n", vis);

                        freeMagic(vis);
                      }
                      /* Print Carriage Return & Put back Tcl/Tk prompt */
                      TxParseString("", NULL, NULL);
                  }
                  else
                  {
                      int sl = strlen(macroDef);
                      if (iMacro)
                      {
                        /* Echo macro to interpreter, then redirect keys */

                        if (TxTkConsole)
                        {
                            char *outstring = Tcl_Alloc(sl + 20);
                            sprintf(outstring, ".text insert end \"%s\"",
                                    macroDef);
                            Tcl_EvalEx(consoleinterp, outstring, -1, 0);
                            Tcl_Free(outstring);
                        }
                        else
                        {
                            TxBuffer = Tcl_Alloc(sl + 1);
                            strcpy(TxBuffer, macroDef);
                            TxPrintf("%s", macroDef);
                            TxFlushOut();
                        }
                        TxInputRedirect = TX_INPUT_REDIRECTED;
                      }
                      else
                      {
                        /* TxParseString is defined by tcltk/tclmagic.c
                         * and calls Tcl_Eval().
                         */

                        TxSetPoint(KeyPressedEvent->x,
                              grXToMagic(KeyPressedEvent->y),
                              grCurrent.mw->w_wid);
                        TxParseString(macroDef, NULL, NULL);
                      }
                      freeMagic(macroDef);
                  }
                }
            }
          } 
          break;
      case VisibilityNotify:
          {
            XVisibilityEvent *VisEvent = (XVisibilityEvent*) xevent;

            entry = HashLookOnly(&grTkWindowTable, wind);
            mw = (entry)?(MagWindow *)HashGetValue(entry):0;

            switch(VisEvent->state)
            {
                case VisibilityUnobscured:
                  mw->w_flags &= ~WIND_OBSCURED;
                  if (mw->w_backingStore == (ClientData)NULL)
                  {
                      grtkCreateBackingStore(mw);
                      if (mw->w_backingStore != (ClientData)NULL)
                      {
                        WindAreaChanged(mw, &mw->w_allArea);
                        WindUpdate();
                      }
                  }
                  break;
                case VisibilityPartiallyObscured:
                case VisibilityFullyObscured:
                  mw->w_flags |= WIND_OBSCURED;
                  break;
            }
          }
          break;
      case Expose:
          {
            XExposeEvent *ExposeEvent = (XExposeEvent*) xevent;
            Rect screenRect;

            entry = HashLookOnly(&grTkWindowTable, wind);
            mw = (entry)?(MagWindow *)HashGetValue(entry):0;
            grCurrent.window = wind;
            grCurrent.windowid = Tk_WindowId(wind);
            grCurrent.mw = mw;

            screenRect.r_xbot = ExposeEvent->x;
                  screenRect.r_xtop = ExposeEvent->x+ExposeEvent->width;
                  screenRect.r_ytop = mw->w_allArea.r_ytop-ExposeEvent->y;
                  screenRect.r_ybot = mw->w_allArea.r_ytop - 
                        (ExposeEvent->y + ExposeEvent->height);

            if (mw->w_backingStore != (ClientData)NULL)
            {
                Rect surface;
                (*GrGetBackingStorePtr)(mw, &screenRect);
                WindScreenToSurface(mw, &screenRect, &surface);
                DBWHLRedrawPrepWindow(mw, &surface);
                WindDrawBorder(mw, &screenRect);
            }
            else
                WindAreaChanged(mw, &screenRect);
            WindUpdate();
            }
          break;
      case ConfigureNotify:
          {
            XConfigureEvent *ConfigureEvent = (XConfigureEvent*) xevent;
            Rect screenRect;
                
            entry = HashLookOnly(&grTkWindowTable, wind);
            mw = (entry)?(MagWindow *)HashGetValue(entry):0;
              grCurrent.window = wind;
            grCurrent.windowid = Tk_WindowId(wind);
            grCurrent.mw = mw;

            screenRect.r_xbot = ConfigureEvent->x;
                  screenRect.r_xtop = ConfigureEvent->x + ConfigureEvent->width;
                  screenRect.r_ytop = grXsToMagic(ConfigureEvent->y);
                  screenRect.r_ybot = grXsToMagic(ConfigureEvent->y+
                                  ConfigureEvent->height);

            WindReframe(mw, &screenRect, FALSE, FALSE);
            WindRedisplay(mw);
            }
            break;

      case MapNotify:
      case UnmapNotify:
      case DestroyNotify:     /* Do nothing */
            break;

      default:
          TxError("Tk Event: Unknown (%d)\n", xevent->type);
          TxFlush();
          break;
    }
}


/*---------------------------------------------------------
 * x11SetDisplay:
 *    This routine sets the appropriate parameters so that
 *    Magic will work with the X display under Tcl/Tk.
 *
 *      Under Xlib, all input events (mouse and keyboard) are
 *    sent to one queue which has to be polled to discover
 *    whether there is any input or not.  To fit the Magic
 *    interrupt-driven input model, a helper process is
 *    spawned which reads and blocks on the event queue,
 *    sending SIGIO's to Magic when it detects input.  The
 *    input read in the helper process is then sent to Magic
 *    via a communication pipe.
 *
 * Results:  success / fail
 *
 * Side Effects:
 *---------------------------------------------------------
 */

bool
x11SetDisplay (dispType, outFileName, mouseFileName)
    char *dispType;
    char *outFileName;
    char *mouseFileName;
{
    char *planecount;
    char *fullname;
    FILE* f;
    bool execFailed = FALSE;
    int x, y, width, height;

    WindPackageType = WIND_X_WINDOWS;
    TxInputRedirect = TX_INPUT_NORMAL;
    grCursorType = "color";
    WindScrollBarWidth = 14;

    /* Set up the procedure values in the indirection table. */

    GrLockPtr = GrTkLock;
    GrUnlockPtr = GrTkUnlock;
    GrInitPtr = GrTkInit;
    GrClosePtr = GrTkClose;
    GrSetCMapPtr = GrTkSetCMap;

    GrEnableTabletPtr = GrTkEnableTablet;
    GrDisableTabletPtr = GrTkDisableTablet;
    GrSetCursorPtr = GrTkSetCursor;
    GrTextSizePtr = GrTkTextSize;
    GrDrawGlyphPtr = GrTkDrawGlyph;
    GrReadPixelPtr = GrTkReadPixel;
    GrFlushPtr = GrTkFlush;

    GrCreateWindowPtr = GrTkCreate;
    GrDeleteWindowPtr = GrTkDelete;
    GrConfigureWindowPtr = GrTkConfigure;
    GrOverWindowPtr = GrTkRaise;
    GrUnderWindowPtr = GrTkLower;
    GrUpdateIconPtr = GrTkIconUpdate; 
    GrEventPendingPtr = GrTkEventPending;
    GrWindowIdPtr = GrTkWindowId;
    GrWindowNamePtr = GrTkWindowName;
    GrGetCursorPosPtr = grtkGetCursorPos;

    /* local indirections */
    grSetSPatternPtr = grtkSetSPattern;
    grPutTextPtr = grtkPutText;
    grDefineCursorPtr = grTkDefineCursor;
    grFreeCursorPtr = grTkFreeCursors;
    GrBitBltPtr = GrTkBitBlt;
    grDrawGridPtr = grtkDrawGrid;
    grDrawLinePtr = grtkDrawLine;
    grSetWMandCPtr = grtkSetWMandC;
    grFillRectPtr = grtkFillRect;
    grSetStipplePtr = grtkSetStipple;
    grSetLineStylePtr = grtkSetLineStyle;
    grSetCharSizePtr = grtkSetCharSize;
#ifdef NONMANHATTAN
    grFillPolygonPtr = grtkFillPolygon;
#endif

    GrFreeBackingStorePtr = grtkFreeBackingStore;
    GrCreateBackingStorePtr = grtkCreateBackingStore;
    GrGetBackingStorePtr = grtkGetBackingStore;
    GrPutBackingStorePtr = grtkPutBackingStore;
    GrScrollBackingStorePtr = grtkScrollBackingStore;
    
    if (execFailed) {
      TxError("Execution failed!\n");
      return FALSE;
    }

    if (!GrTkInit(dispType)) {
      return FALSE;
    };

    Tk_GetVRootGeometry(Tk_MainWindow(magicinterp), &x, &y, &width, &height);
    GrScreenRect.r_xbot = x;
    GrScreenRect.r_ybot = y;
    GrScreenRect.r_xtop = x + width;
    GrScreenRect.r_ytop = y + height;

    return Tk_MainWindow(magicinterp) ? TRUE : FALSE;
}

extern void MakeWindowCommand();


/*
 * ----------------------------------------------------------------------------
 *
 * GrTkCreate --
 *      Create a new window under Tk.
 *    Bind Tk window to Magic Window w.
 *
 * Results:
 *    Success/Failure
 *
 * Side Effects:
 *      Window created and mapped.
 *
 * ----------------------------------------------------------------------------
 */

bool
GrTkCreate(w, name)
    MagWindow *w;
    char *name;
{
    Tk_Window tkwind, tktop;
    Window wind;
    static int WindowNumber = 0;
    HashEntry     *entry;
    char    *windowplace;
    char    windowname[10];
    int           x      = w->w_frameArea.r_xbot;
    int           y      = grMagicToXs(w->w_frameArea.r_ytop);
    int           width  = w->w_frameArea.r_xtop - w->w_frameArea.r_xbot;
    int           height = w->w_frameArea.r_ytop - w->w_frameArea.r_ybot;
    unsigned long        attribmask = CWBackPixel | CWBorderPixel;
    XSetWindowAttributes grAttributes;
    int     grDepth;

    GrTkFlush();

    WindSeparateRedisplay(w);

    sprintf(windowname, ".magic%d", WindowNumber + 1);
    if (windowplace = XGetDefault(grXdpy, "magic", windowname))
    {
      XParseGeometry(windowplace,&x,&y,
            (unsigned int *)&width,(unsigned int *)&height);
      w->w_frameArea.r_xbot = x;
      w->w_frameArea.r_xtop = x+width;
      w->w_frameArea.r_ytop = grXsToMagic(y);
      w->w_frameArea.r_ybot = grXsToMagic(y+height);
      WindReframe(w,&(w->w_frameArea),FALSE,FALSE);
    }
    grAttributes.background_pixel = WhitePixel(grXdpy,grXscrn);
    grAttributes.border_pixel = BlackPixel(grXdpy,grXscrn);

    grDepth = grDisplay.depth;
    if(grClass == 3) grDepth = 8;  /* Needed since grDisplay.depth is reset
                             to 7 if Pseudocolor      */

    if (tktop = Tk_MainWindow(magicinterp))
    {
      if (!WindowNumber)
      {
          /* To do: deal with grVisual---destroy and recreate     */
          /* top frame if necessary                         */

          if (Tk_WindowId(tktop) == 0)
          {
              Tk_SetWindowVisual(tktop, grVisual, grDepth, grXcmap);
          }
          else
          {
              /* The Top-level window has already been mapped.  We can't mess */
              /* with it's visual.  If the title is "wish", we'll assume that */
              /* nobody else is claiming it, and unmap it.              */

              if (!strcmp(Tk_Name(tktop), "wish")) Tk_UnmapWindow(tktop);
          }
      }
    }
    else
      return 0;   /* Failure condition */

    /* Last parameter "" indicates a top-level window in the space of   */
    /* the parent.                                          */

    if (name == NULL)
        tkwind = Tk_CreateWindowFromPath(magicinterp, tktop, windowname, "");
    else
        tkwind = Tk_CreateWindowFromPath(magicinterp, tktop, name, NULL);

    /* TxError("Created window named \"%s\", tkwind = 0x%x\n",
            windowname, tkwind); */

    if (tkwind != 0)
    {
      grCurrent.window = tkwind;
      grCurrent.mw = w;
      w->w_grdata = (ClientData) tkwind;

      entry = HashFind(&grTkWindowTable, tkwind);
      HashSetValue(entry,w);

      /* set the window attributes, since Tk doesn't do this in the     */
      /* Tk_CreateWindowFromPath() function.                      */
      
      Tk_ChangeWindowAttributes(tkwind, attribmask, &grAttributes);

      /* ensure that the visual is what we wanted, if possible to change */

        Tk_SetWindowVisual(tkwind, grVisual, grDepth, grXcmap);

      /* map the window, if necessary */

      Tk_MapWindow(tkwind);

      /* use x, y, width, height to size and position the window */

      Tk_GeometryRequest(tkwind, width, height);
      /* Tk_MoveResizeWindow(tkwind, x, y, width, height); */

      wind = Tk_WindowId(tkwind);
      grCurrent.windowid = wind;

      if (!WindowNumber)
      {
             grGCFill = XCreateGC(grXdpy, wind, 0, 0);
             grGCDraw = XCreateGC(grXdpy, wind, 0, 0);
             grGCText = XCreateGC(grXdpy, wind, 0, 0);
             grGCCopy = XCreateGC(grXdpy, wind, 0, 0);
             grGCGlyph = XCreateGC(grXdpy, wind, 0, 0);
        }

      XSetPlaneMask(grXdpy, grGCGlyph, AllPlanes);
        Tk_DefineCursor(tkwind, grCurrent.cursor);
      GrTkIconUpdate(w, w->w_caption); 

      /*----------------------------------------------------------------------*/
      /* If we're using TkCon in a PseudoColor visual, we need to set the     */
      /* console's colormap to match the magic window.  TkCon need know */
      /* nothing about this action (i.e., don't call Tk_SetWindowColormap()). */
      /* Make a call to a routine to reassign colors to match magic's solid   */
      /* colors.                                            */
      /*----------------------------------------------------------------------*/

      if (TxTkConsole && !WindowNumber)
      {
          Window parent, rret, *clist;
          unsigned int iret;

          if (Tk_Visual(tktop) == Tk_Visual(tkwind))
          {
              XQueryTree(grXdpy, Tk_WindowId(tktop), &rret, &parent, &clist, &iret);

              /* Overlay plane windows won't have the same visual in both the */
              /* console and the layout windows;  in such case, there should  */
              /* be no need to set the colormap.                        */

            XSetWindowColormap(grXdpy, parent, grXcmap);

              if (clist != NULL) XFree(clist);
          }
          else
            GrTkInstalledCMap = FALSE;

          Tcl_EvalEx(consoleinterp, "catch repaintconsole", 20, 0);
      }
      WindowNumber++;

      /* set up Tk event handler to start processing */

      Tk_CreateEventHandler(tkwind, ExposureMask | StructureNotifyMask
            | ButtonPressMask | KeyPressMask | VisibilityChangeMask,
            (Tk_EventProc *)MagicEventProc, (ClientData) tkwind);

      /* set up commands to be passed expressly to this window */

      MakeWindowCommand((name == NULL) ? windowname : name, w);

      /*--------------------------------------------------------------*/
      /* In a PseudoColor visual + GUI wrapper environment, we need     */
      /* to make sure that the GUI window (layout's parent) has the     */
      /* same colormap as the layout.  Tk need know nothing about */
      /* this sleight-of-hand.                              */
      /*--------------------------------------------------------------*/

      if ((grClass == 3) && !Tk_IsTopLevel(tkwind))
      {
          Tk_Window tklayout = tkwind;
          Window parent, rret, *clist;
          unsigned int iret;

          while (!Tk_IsTopLevel(tklayout)) tklayout = Tk_Parent(tklayout);
          XQueryTree(grXdpy, Tk_WindowId(tklayout), &rret, &parent, &clist, &iret);

          /* Avoid trying to set the colormap of a window with an */
          /* incompatible visual (see above).                     */

          if (Tk_Visual(tklayout) == Tk_Visual(tkwind))
          {
            XSetWindowColormap(grXdpy, parent, grXcmap);
            Tk_SetWindowColormap(tklayout, grXcmap);
          }
          else
          {
            GrTkInstalledCMap = FALSE;
            TxError("Warning:  Cannot match colormap of wrapper to layout.\n");
          }

          if (clist != NULL) XFree(clist);
      }

      /* Install the colormap in all associated windows, for pseudocolor */
      /* visuals, if required                                  */

      if (grClass == 3) XInstallColormap(grXdpy, grXcmap);

      return 1;
    }
    else
    {
      TxError("Could not open new Tk window\n");
    }

    return 0;
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkDelete --
 *      Destroy an X window.
 *
 * Results:
 *    None.
 *
 * Side effects:
 *      Window destroyed.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkDelete(w)
    MagWindow *w;
{
    Tk_Window xw;
    HashEntry     *entry;

    xw = (Tk_Window) w->w_grdata;
    entry = HashLookOnly(&grTkWindowTable, xw);
    HashSetValue(entry,NULL);

    Tcl_DeleteCommand(magicinterp, Tk_PathName(xw));

    Tk_DestroyWindow(xw);
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkConfigure --
 *      Resize/ Move an existing X window.
 *
 * Results:
 *      None.
 *
 * Side Effects:
 *      Window reconfigured to w->w_frameArea.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkConfigure(w)
    MagWindow *w;
{
    if (w->w_flags & WIND_OFFSCREEN) return;

    Tk_MoveResizeWindow((Tk_Window)w->w_grdata,
          w->w_frameArea.r_xbot, grMagicToXs(w->w_frameArea.r_ytop),
            w->w_frameArea.r_xtop - w->w_frameArea.r_xbot,
                w->w_frameArea.r_ytop - w->w_frameArea.r_ybot);
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkRaise --
 *      Raise a window to the top of the screen such that nothing
 *    obscures it.
 *
 * Results:
 *      None.
 *
 * Side Effects:
 *      Window raised.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkRaise(w)
    MagWindow *w;
{
    Tk_Window tkwind;

    if (w->w_flags & WIND_OFFSCREEN) return;

    tkwind = (Tk_Window)w->w_grdata;
    Tk_RestackWindow(tkwind, Above, NULL);
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkLower --
 *      Lower a window below all other X windows.
 *    obscures it.
 *
 * Results:
 *      None.
 *
 * Side Effects:
 *      Window lowered.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkLower(w)
    MagWindow *w;
{
    Tk_Window tkwind;

    if (w->w_flags & WIND_OFFSCREEN) return;

    tkwind = (Tk_Window)w->w_grdata;
    Tk_RestackWindow(tkwind, Below, NULL);
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkLock --
 *      Lock a window and set global variables "grCurrent.window"
 *    and "grCurrent.mw" to reference the locked window.
 *
 * Results:
 *    None.
 *
 * Side Effects:
 *      Window locked.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkLock(w, flag)
    MagWindow *w;
    bool flag;
{

    grSimpleLock(w, flag);
    if ( w != GR_LOCK_SCREEN )
    {
      grCurrent.mw = w;
      if (w->w_flags & WIND_OFFSCREEN)
      {
          grCurrent.window = NULL;
          grCurrent.windowid = (Pixmap) w->w_grdata;
      }
      else
      {
          grCurrent.window = (Tk_Window) w->w_grdata;
          grCurrent.windowid = Tk_WindowId(grCurrent.window);
      }
    }
}

/*
 * ----------------------------------------------------------------------------
 *
 * GrTkUnlock --
 *      Unlock a window, flushing stuff out to the display.
 *
 * Results:
 *    None.
 *
 * Side Effects:
 *      Window unlocked.
 *    Display update.
 *
 * ----------------------------------------------------------------------------
 */

void
GrTkUnlock(w)
    MagWindow *w;
{
    GR_TK_FLUSH_BATCH();
    grSimpleUnlock(w);
}


/*
 *-------------------------------------------------------------------------
 * GrTkEventPending -- check for pending graphics events.
 *    Here we use the X11 check for window events, because Tcl/Tk doesn't
 *    allows peeking into its event queue without executing whatever is
 *    in the queue.
 *
 * Results:
 *    TRUE if an event is in the event queue.
 *
 * Side effects:
 *    Hopefully none (put back the event!)
 *
 *-------------------------------------------------------------------------
 */

bool
GrTkEventPending()
{
   Tk_Window      tkwind = grCurrent.window;
   Window   wind = grCurrent.windowid;
   XEvent   genEvent;
   bool           retval;

   if (wind == 0) return FALSE;

   retval = XCheckWindowEvent(grXdpy, wind, ExposureMask
            | StructureNotifyMask | ButtonPressMask
            | KeyPressMask, &genEvent); 
   if (retval) XPutBackEvent(grXdpy, &genEvent);
   return retval;
}

/*
 *-------------------------------------------------------------------------
 *
 * GrTkIconUpdate -- updates the icon text with the window script
 *
 * Results: none
 *
 * Side Effects: changes the icon text
 *
 *-------------------------------------------------------------------------
 */

void
GrTkIconUpdate(w, text)       /* See Blt code */
    MagWindow     *w;
    char    *text;
{
    Tk_Window     tkwind;
    Window  wind;
    XClassHint    class;
    char    *brack;
     
    if (w->w_flags & WIND_OFFSCREEN) return;

    tkwind = (Tk_Window)(w->w_grdata);
    if (tkwind == NULL) {
      tkwind = Tk_MainWindow(magicinterp);
        if (tkwind == NULL) return;
    }
    wind = Tk_WindowId(tkwind);
    if (wind == 0) return;

    class.res_name = "magic";
    class.res_class = "magic";

    XSetClassHint( grXdpy, wind, &class);
    if (brack = index(text,'['))
    {
      brack--;
      *brack = 0;
        XSetIconName(grXdpy,wind,text);
      XStoreName(grXdpy,wind,text);
      *brack = ' ';
      return;
    }
    if (brack = rindex(text,' ')) text = brack+1;
    XSetIconName(grXdpy,wind,text);
    XStoreName(grXdpy,wind,text);
}

/*
 *-------------------------------------------------------------------------
 * GrTkWindowId --
 *    Get magic's ID number from the indicated MagWindow structure
 *
 * Results:
 *    The window ID number
 *
 * Side effects:
 *    None.
 *-------------------------------------------------------------------------
 */

int
GrTkWindowId(tkname)
    char *tkname;
{
    Tk_Window tkwind;
    MagWindow *mw;
    HashEntry *entry;
    int id = 0;

    tkwind = Tk_NameToWindow(magicinterp, tkname, Tk_MainWindow(magicinterp));
    if (tkwind != NULL)
    {
      entry = HashLookOnly(&grTkWindowTable, tkwind);
      mw = (entry) ? (MagWindow *)HashGetValue(entry) : 0;
      if (mw) id = mw->w_wid;
    }
    return id;
}


Generated by  Doxygen 1.6.0   Back to index