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/*
 * tkCmds.c --
 *
 *      This file contains a collection of Tk-related Tcl commands
 *      that didn't fit in any particular file of the toolkit.
 *
 * Copyright (c) 1990-1994 The Regents of the University of California.
 * Copyright (c) 1994-1996 Sun Microsystems, Inc.
 * Copyright (c) 1998 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tkCmds.c,v 1.1.1.1 2002-01-16 10:25:51 markom Exp $
 */
 
#include "tkPort.h"
#include "tkInt.h"
#include <errno.h>
 
/*
 * Forward declarations for procedures defined later in this file:
 */
 
static TkWindow *       GetToplevel _ANSI_ARGS_((Tk_Window tkwin));
static char *           WaitVariableProc _ANSI_ARGS_((ClientData clientData,
                            Tcl_Interp *interp, char *name1, char *name2,
                            int flags));
static void             WaitVisibilityProc _ANSI_ARGS_((ClientData clientData,
                            XEvent *eventPtr));
static void             WaitWindowProc _ANSI_ARGS_((ClientData clientData,
                            XEvent *eventPtr));
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_BellObjCmd --
 *
 *      This procedure is invoked to process the "bell" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_BellObjCmd(clientData, interp, objc, objv)
    ClientData clientData;      /* Main window associated with interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int objc;                   /* Number of arguments. */
    Tcl_Obj *CONST objv[];      /* Argument objects. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    int index;
    char *string;
    static char *optionStrings[] = {
        "-displayof",   NULL
    };
 
    if ((objc != 1) && (objc != 3)) {
        Tcl_WrongNumArgs(interp, 1, objv, "?-displayof window?");
        return TCL_ERROR;
    }
 
    if (objc == 3) {
        if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
                &index) != TCL_OK) {
            return TCL_ERROR;
        }
        string = Tcl_GetStringFromObj(objv[2], NULL);
        tkwin = Tk_NameToWindow(interp, string, tkwin);
        if (tkwin == NULL) {
            return TCL_ERROR;
        }
    }
    XBell(Tk_Display(tkwin), 0);
    XForceScreenSaver(Tk_Display(tkwin), ScreenSaverReset);
    XFlush(Tk_Display(tkwin));
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_BindCmd --
 *
 *      This procedure is invoked to process the "bind" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_BindCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    TkWindow *winPtr;
    ClientData object;
 
    if ((argc < 2) || (argc > 4)) {
        Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
                " window ?pattern? ?command?\"", (char *) NULL);
        return TCL_ERROR;
    }
    if (argv[1][0] == '.') {
        winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[1], tkwin);
        if (winPtr == NULL) {
            return TCL_ERROR;
        }
        object = (ClientData) winPtr->pathName;
    } else {
        winPtr = (TkWindow *) clientData;
        object = (ClientData) Tk_GetUid(argv[1]);
    }
 
    if (argc == 4) {
        int append = 0;
        unsigned long mask;
 
        if (argv[3][0] == 0) {
            return Tk_DeleteBinding(interp, winPtr->mainPtr->bindingTable,
                    object, argv[2]);
        }
        if (argv[3][0] == '+') {
            argv[3]++;
            append = 1;
        }
        mask = Tk_CreateBinding(interp, winPtr->mainPtr->bindingTable,
                object, argv[2], argv[3], append);
        if (mask == 0) {
            return TCL_ERROR;
        }
    } else if (argc == 3) {
        char *command;
 
        command = Tk_GetBinding(interp, winPtr->mainPtr->bindingTable,
                object, argv[2]);
        if (command == NULL) {
            Tcl_ResetResult(interp);
            return TCL_OK;
        }
        interp->result = command;
    } else {
        Tk_GetAllBindings(interp, winPtr->mainPtr->bindingTable, object);
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TkBindEventProc --
 *
 *      This procedure is invoked by Tk_HandleEvent for each event;  it
 *      causes any appropriate bindings for that event to be invoked.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Depends on what bindings have been established with the "bind"
 *      command.
 *
 *----------------------------------------------------------------------
 */
 
void
TkBindEventProc(winPtr, eventPtr)
    TkWindow *winPtr;                   /* Pointer to info about window. */
    XEvent *eventPtr;                   /* Information about event. */
{
#define MAX_OBJS 20
    ClientData objects[MAX_OBJS], *objPtr;
    static Tk_Uid allUid = NULL;
    TkWindow *topLevPtr;
    int i, count;
    char *p;
    Tcl_HashEntry *hPtr;
 
    if ((winPtr->mainPtr == NULL) || (winPtr->mainPtr->bindingTable == NULL)) {
        return;
    }
 
    objPtr = objects;
    if (winPtr->numTags != 0) {
        /*
         * Make a copy of the tags for the window, replacing window names
         * with pointers to the pathName from the appropriate window.
         */
 
        if (winPtr->numTags > MAX_OBJS) {
            objPtr = (ClientData *) ckalloc((unsigned)
                    (winPtr->numTags * sizeof(ClientData)));
        }
        for (i = 0; i < winPtr->numTags; i++) {
            p = (char *) winPtr->tagPtr[i];
            if (*p == '.') {
                hPtr = Tcl_FindHashEntry(&winPtr->mainPtr->nameTable, p);
                if (hPtr != NULL) {
                    p = ((TkWindow *) Tcl_GetHashValue(hPtr))->pathName;
                } else {
                    p = NULL;
                }
            }
            objPtr[i] = (ClientData) p;
        }
        count = winPtr->numTags;
    } else {
        objPtr[0] = (ClientData) winPtr->pathName;
        objPtr[1] = (ClientData) winPtr->classUid;
        for (topLevPtr = winPtr;
                (topLevPtr != NULL) && !(topLevPtr->flags & TK_TOP_LEVEL);
                topLevPtr = topLevPtr->parentPtr) {
            /* Empty loop body. */
        }
        if ((winPtr != topLevPtr) && (topLevPtr != NULL)) {
            count = 4;
            objPtr[2] = (ClientData) topLevPtr->pathName;
        } else {
            count = 3;
        }
        if (allUid == NULL) {
            allUid = Tk_GetUid("all");
        }
        objPtr[count-1] = (ClientData) allUid;
    }
    Tk_BindEvent(winPtr->mainPtr->bindingTable, eventPtr, (Tk_Window) winPtr,
            count, objPtr);
    if (objPtr != objects) {
        ckfree((char *) objPtr);
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_BindtagsCmd --
 *
 *      This procedure is invoked to process the "bindtags" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_BindtagsCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    TkWindow *winPtr, *winPtr2;
    int i, tagArgc;
    char *p, **tagArgv;
 
    if ((argc < 2) || (argc > 3)) {
        Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
                " window ?tags?\"", (char *) NULL);
        return TCL_ERROR;
    }
    winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[1], tkwin);
    if (winPtr == NULL) {
        return TCL_ERROR;
    }
    if (argc == 2) {
        if (winPtr->numTags == 0) {
            Tcl_AppendElement(interp, winPtr->pathName);
            Tcl_AppendElement(interp, winPtr->classUid);
            for (winPtr2 = winPtr;
                    (winPtr2 != NULL) && !(winPtr2->flags & TK_TOP_LEVEL);
                    winPtr2 = winPtr2->parentPtr) {
                /* Empty loop body. */
            }
            if ((winPtr != winPtr2) && (winPtr2 != NULL)) {
                Tcl_AppendElement(interp, winPtr2->pathName);
            }
            Tcl_AppendElement(interp, "all");
        } else {
            for (i = 0; i < winPtr->numTags; i++) {
                Tcl_AppendElement(interp, (char *) winPtr->tagPtr[i]);
            }
        }
        return TCL_OK;
    }
    if (winPtr->tagPtr != NULL) {
        TkFreeBindingTags(winPtr);
    }
    if (argv[2][0] == 0) {
        return TCL_OK;
    }
    if (Tcl_SplitList(interp, argv[2], &tagArgc, &tagArgv) != TCL_OK) {
        return TCL_ERROR;
    }
    winPtr->numTags = tagArgc;
    winPtr->tagPtr = (ClientData *) ckalloc((unsigned)
            (tagArgc * sizeof(ClientData)));
    for (i = 0; i < tagArgc; i++) {
        p = tagArgv[i];
        if (p[0] == '.') {
            char *copy;
 
            /*
             * Handle names starting with "." specially: store a malloc'ed
             * string, rather than a Uid;  at event time we'll look up the
             * name in the window table and use the corresponding window,
             * if there is one.
             */
 
            copy = (char *) ckalloc((unsigned) (strlen(p) + 1));
            strcpy(copy, p);
            winPtr->tagPtr[i] = (ClientData) copy;
        } else {
            winPtr->tagPtr[i] = (ClientData) Tk_GetUid(p);
        }
    }
    ckfree((char *) tagArgv);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TkFreeBindingTags --
 *
 *      This procedure is called to free all of the binding tags
 *      associated with a window;  typically it is only invoked where
 *      there are window-specific tags.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Any binding tags for winPtr are freed.
 *
 *----------------------------------------------------------------------
 */
 
void
TkFreeBindingTags(winPtr)
    TkWindow *winPtr;           /* Window whose tags are to be released. */
{
    int i;
    char *p;
 
    for (i = 0; i < winPtr->numTags; i++) {
        p = (char *) (winPtr->tagPtr[i]);
        if (*p == '.') {
            /*
             * Names starting with "." are malloced rather than Uids, so
             * they have to be freed.
             */
 
            ckfree(p);
        }
    }
    ckfree((char *) winPtr->tagPtr);
    winPtr->numTags = 0;
    winPtr->tagPtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_DestroyCmd --
 *
 *      This procedure is invoked to process the "destroy" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_DestroyCmd(clientData, interp, argc, argv)
    ClientData clientData;              /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window window;
    Tk_Window tkwin = (Tk_Window) clientData;
    int i;
 
    for (i = 1; i < argc; i++) {
        window = Tk_NameToWindow(interp, argv[i], tkwin);
        if (window == NULL) {
            Tcl_ResetResult(interp);
            continue;
        }
        Tk_DestroyWindow(window);
        if (window == tkwin) {
            /*
             * We just deleted the main window for the application! This
             * makes it impossible to do anything more (tkwin isn't
             * valid anymore).
             */
 
            break;
         }
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_LowerCmd --
 *
 *      This procedure is invoked to process the "lower" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
        /* ARGSUSED */
int
Tk_LowerCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window mainwin = (Tk_Window) clientData;
    Tk_Window tkwin, other;
 
    if ((argc != 2) && (argc != 3)) {
        Tcl_AppendResult(interp, "wrong # args: should be \"",
                argv[0], " window ?belowThis?\"", (char *) NULL);
        return TCL_ERROR;
    }
 
    tkwin = Tk_NameToWindow(interp, argv[1], mainwin);
    if (tkwin == NULL) {
        return TCL_ERROR;
    }
    if (argc == 2) {
        other = NULL;
    } else {
        other = Tk_NameToWindow(interp, argv[2], mainwin);
        if (other == NULL) {
            return TCL_ERROR;
        }
    }
    if (Tk_RestackWindow(tkwin, Below, other) != TCL_OK) {
        Tcl_AppendResult(interp, "can't lower \"", argv[1], "\" below \"",
                argv[2], "\"", (char *) NULL);
        return TCL_ERROR;
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_RaiseCmd --
 *
 *      This procedure is invoked to process the "raise" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
        /* ARGSUSED */
int
Tk_RaiseCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window mainwin = (Tk_Window) clientData;
    Tk_Window tkwin, other;
 
    if ((argc != 2) && (argc != 3)) {
        Tcl_AppendResult(interp, "wrong # args: should be \"",
                argv[0], " window ?aboveThis?\"", (char *) NULL);
        return TCL_ERROR;
    }
 
    tkwin = Tk_NameToWindow(interp, argv[1], mainwin);
    if (tkwin == NULL) {
        return TCL_ERROR;
    }
    if (argc == 2) {
        other = NULL;
    } else {
        other = Tk_NameToWindow(interp, argv[2], mainwin);
        if (other == NULL) {
            return TCL_ERROR;
        }
    }
    if (Tk_RestackWindow(tkwin, Above, other) != TCL_OK) {
        Tcl_AppendResult(interp, "can't raise \"", argv[1], "\" above \"",
                argv[2], "\"", (char *) NULL);
        return TCL_ERROR;
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_TkObjCmd --
 *
 *      This procedure is invoked to process the "tk" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_TkObjCmd(clientData, interp, objc, objv)
    ClientData clientData;      /* Main window associated with interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int objc;                   /* Number of arguments. */
    Tcl_Obj *CONST objv[];      /* Argument objects. */
{
    int index;
    Tk_Window tkwin;
    static char *optionStrings[] = {
        "appname",      "scaling",      NULL
    };
    enum options {
        TK_APPNAME,     TK_SCALING
    };
 
    tkwin = (Tk_Window) clientData;
 
    if (objc < 2) {
        Tcl_WrongNumArgs(interp, 1, objv, "option ?arg?");
        return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
            &index) != TCL_OK) {
        return TCL_ERROR;
    }
 
    switch ((enum options) index) {
        case TK_APPNAME: {
            TkWindow *winPtr;
            char *string;
 
            winPtr = (TkWindow *) tkwin;
 
            if (objc > 3) {
                Tcl_WrongNumArgs(interp, 2, objv, "?newName?");
                return TCL_ERROR;
            }
            if (objc == 3) {
                string = Tcl_GetStringFromObj(objv[2], NULL);
                winPtr->nameUid = Tk_GetUid(Tk_SetAppName(tkwin, string));
            }
            Tcl_SetStringObj(Tcl_GetObjResult(interp), winPtr->nameUid, -1);
            break;
        }
        case TK_SCALING: {
            Screen *screenPtr;
            int skip, width, height;
            double d;
 
            screenPtr = Tk_Screen(tkwin);
 
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip == 2) {
                d = 25.4 / 72;
                d *= WidthOfScreen(screenPtr);
                d /= WidthMMOfScreen(screenPtr);
                Tcl_SetDoubleObj(Tcl_GetObjResult(interp), d);
            } else if (objc - skip == 3) {
                if (Tcl_GetDoubleFromObj(interp, objv[2 + skip], &d) != TCL_OK) {
                    return TCL_ERROR;
                }
                d = (25.4 / 72) / d;
                width = (int) (d * WidthOfScreen(screenPtr) + 0.5);
                if (width <= 0) {
                    width = 1;
                }
                height = (int) (d * HeightOfScreen(screenPtr) + 0.5);
                if (height <= 0) {
                    height = 1;
                }
                WidthMMOfScreen(screenPtr) = width;
                HeightMMOfScreen(screenPtr) = height;
            } else {
                Tcl_WrongNumArgs(interp, 2, objv,
                        "?-displayof window? ?factor?");
                return TCL_ERROR;
            }
            break;
        }
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_TkwaitCmd --
 *
 *      This procedure is invoked to process the "tkwait" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
        /* ARGSUSED */
int
Tk_TkwaitCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    int c, done;
    size_t length;
 
    if (argc != 3) {
        Tcl_AppendResult(interp, "wrong # args: should be \"",
                argv[0], " variable|visibility|window name\"", (char *) NULL);
        return TCL_ERROR;
    }
    c = argv[1][0];
    length = strlen(argv[1]);
    if ((c == 'v') && (strncmp(argv[1], "variable", length) == 0)
            && (length >= 2)) {
        if (Tcl_TraceVar(interp, argv[2],
                TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
                WaitVariableProc, (ClientData) &done) != TCL_OK) {
            return TCL_ERROR;
        }
        done = 0;
        while (!done) {
            Tcl_DoOneEvent(0);
        }
        Tcl_UntraceVar(interp, argv[2],
                TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
                WaitVariableProc, (ClientData) &done);
    } else if ((c == 'v') && (strncmp(argv[1], "visibility", length) == 0)
            && (length >= 2)) {
        Tk_Window window;
 
        window = Tk_NameToWindow(interp, argv[2], tkwin);
        if (window == NULL) {
            return TCL_ERROR;
        }
        Tk_CreateEventHandler(window, VisibilityChangeMask|StructureNotifyMask,
            WaitVisibilityProc, (ClientData) &done);
        done = 0;
        while (!done) {
            Tcl_DoOneEvent(0);
        }
        if (done != 1) {
            /*
             * Note that we do not delete the event handler because it
             * was deleted automatically when the window was destroyed.
             */
 
            Tcl_ResetResult(interp);
            Tcl_AppendResult(interp, "window \"", argv[2],
                    "\" was deleted before its visibility changed",
                    (char *) NULL);
            return TCL_ERROR;
        }
        Tk_DeleteEventHandler(window, VisibilityChangeMask|StructureNotifyMask,
            WaitVisibilityProc, (ClientData) &done);
    } else if ((c == 'w') && (strncmp(argv[1], "window", length) == 0)) {
        Tk_Window window;
 
        window = Tk_NameToWindow(interp, argv[2], tkwin);
        if (window == NULL) {
            return TCL_ERROR;
        }
        Tk_CreateEventHandler(window, StructureNotifyMask,
            WaitWindowProc, (ClientData) &done);
        done = 0;
        while (!done) {
            Tcl_DoOneEvent(0);
        }
        /*
         * Note:  there's no need to delete the event handler.  It was
         * deleted automatically when the window was destroyed.
         */
    } else {
        Tcl_AppendResult(interp, "bad option \"", argv[1],
                "\": must be variable, visibility, or window", (char *) NULL);
        return TCL_ERROR;
    }
 
    /*
     * Clear out the interpreter's result, since it may have been set
     * by event handlers.
     */
 
    Tcl_ResetResult(interp);
    return TCL_OK;
}
 
        /* ARGSUSED */
static char *
WaitVariableProc(clientData, interp, name1, name2, flags)
    ClientData clientData;      /* Pointer to integer to set to 1. */
    Tcl_Interp *interp;         /* Interpreter containing variable. */
    char *name1;                /* Name of variable. */
    char *name2;                /* Second part of variable name. */
    int flags;                  /* Information about what happened. */
{
    int *donePtr = (int *) clientData;
 
    *donePtr = 1;
    return (char *) NULL;
}
 
        /*ARGSUSED*/
static void
WaitVisibilityProc(clientData, eventPtr)
    ClientData clientData;      /* Pointer to integer to set to 1. */
    XEvent *eventPtr;           /* Information about event (not used). */
{
    int *donePtr = (int *) clientData;
 
    if (eventPtr->type == VisibilityNotify) {
        *donePtr = 1;
    }
    if (eventPtr->type == DestroyNotify) {
        *donePtr = 2;
    }
}
 
static void
WaitWindowProc(clientData, eventPtr)
    ClientData clientData;      /* Pointer to integer to set to 1. */
    XEvent *eventPtr;           /* Information about event. */
{
    int *donePtr = (int *) clientData;
 
    if (eventPtr->type == DestroyNotify) {
        *donePtr = 1;
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_UpdateCmd --
 *
 *      This procedure is invoked to process the "update" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
        /* ARGSUSED */
int
Tk_UpdateCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    int flags;
    TkDisplay *dispPtr;
 
    if (argc == 1) {
        flags = TCL_DONT_WAIT;
    } else if (argc == 2) {
        if (strncmp(argv[1], "idletasks", strlen(argv[1])) != 0) {
            Tcl_AppendResult(interp, "bad option \"", argv[1],
                    "\": must be idletasks", (char *) NULL);
            return TCL_ERROR;
        }
        flags = TCL_IDLE_EVENTS;
    } else {
        Tcl_AppendResult(interp, "wrong # args: should be \"",
                argv[0], " ?idletasks?\"", (char *) NULL);
        return TCL_ERROR;
    }
 
    /*
     * Handle all pending events, sync all displays, and repeat over
     * and over again until all pending events have been handled.
     * Special note:  it's possible that the entire application could
     * be destroyed by an event handler that occurs during the update.
     * Thus, don't use any information from tkwin after calling
     * Tcl_DoOneEvent.
     */
 
    while (1) {
        while (Tcl_DoOneEvent(flags) != 0) {
            /* Empty loop body */
        }
        for (dispPtr = tkDisplayList; dispPtr != NULL;
                dispPtr = dispPtr->nextPtr) {
            XSync(dispPtr->display, False);
        }
        if (Tcl_DoOneEvent(flags) == 0) {
            break;
        }
    }
 
    /*
     * Must clear the interpreter's result because event handlers could
     * have executed commands.
     */
 
    Tcl_ResetResult(interp);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tk_WinfoObjCmd --
 *
 *      This procedure is invoked to process the "winfo" Tcl command.
 *      See the user documentation for details on what it does.
 *
 * Results:
 *      A standard Tcl result.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
int
Tk_WinfoObjCmd(clientData, interp, objc, objv)
    ClientData clientData;      /* Main window associated with
                                 * interpreter. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int objc;                   /* Number of arguments. */
    Tcl_Obj *CONST objv[];      /* Argument objects. */
{
    int index, x, y, width, height, useX, useY, class, skip;
    char buf[128];
    char *string;
    TkWindow *winPtr;
    Tk_Window tkwin;
 
    static TkStateMap visualMap[] = {
        {PseudoColor,   "pseudocolor"},
        {GrayScale,     "grayscale"},
        {DirectColor,   "directcolor"},
        {TrueColor,     "truecolor"},
        {StaticColor,   "staticcolor"},
        {StaticGray,    "staticgray"},
        {-1,            NULL}
    };
    static char *optionStrings[] = {
        "cells",        "children",     "class",        "colormapfull",
        "depth",        "geometry",     "height",       "id",
        "ismapped",     "manager",      "name",         "parent",
        "pointerx",     "pointery",     "pointerxy",    "reqheight",
        "reqwidth",     "rootx",        "rooty",        "screen",
        "screencells",  "screendepth",  "screenheight", "screenwidth",
        "screenmmheight","screenmmwidth","screenvisual","server",
        "toplevel",     "viewable",     "visual",       "visualid",
        "vrootheight",  "vrootwidth",   "vrootx",       "vrooty",
        "width",        "x",            "y",
 
        "atom",         "atomname",     "containing",   "interps",
        "pathname",
 
        "exists",       "fpixels",      "pixels",       "rgb",
        "visualsavailable",
 
        NULL
    };
    enum options {
        WIN_CELLS,      WIN_CHILDREN,   WIN_CLASS,      WIN_COLORMAPFULL,
        WIN_DEPTH,      WIN_GEOMETRY,   WIN_HEIGHT,     WIN_ID,
        WIN_ISMAPPED,   WIN_MANAGER,    WIN_NAME,       WIN_PARENT,
        WIN_POINTERX,   WIN_POINTERY,   WIN_POINTERXY,  WIN_REQHEIGHT,
        WIN_REQWIDTH,   WIN_ROOTX,      WIN_ROOTY,      WIN_SCREEN,
        WIN_SCREENCELLS,WIN_SCREENDEPTH,WIN_SCREENHEIGHT,WIN_SCREENWIDTH,
        WIN_SCREENMMHEIGHT,WIN_SCREENMMWIDTH,WIN_SCREENVISUAL,WIN_SERVER,
        WIN_TOPLEVEL,   WIN_VIEWABLE,   WIN_VISUAL,     WIN_VISUALID,
        WIN_VROOTHEIGHT,WIN_VROOTWIDTH, WIN_VROOTX,     WIN_VROOTY,
        WIN_WIDTH,      WIN_X,          WIN_Y,
 
        WIN_ATOM,       WIN_ATOMNAME,   WIN_CONTAINING, WIN_INTERPS,
        WIN_PATHNAME,
 
        WIN_EXISTS,     WIN_FPIXELS,    WIN_PIXELS,     WIN_RGB,
        WIN_VISUALSAVAILABLE
    };
 
    tkwin = (Tk_Window) clientData;
 
    if (objc < 2) {
        Tcl_WrongNumArgs(interp, 1, objv, "option ?arg?");
        return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
            &index) != TCL_OK) {
        return TCL_ERROR;
    }
 
    if (index < WIN_ATOM) {
        if (objc != 3) {
            Tcl_WrongNumArgs(interp, 2, objv, "window");
            return TCL_ERROR;
        }
        string = Tcl_GetStringFromObj(objv[2], NULL);
        tkwin = Tk_NameToWindow(interp, string, tkwin);
        if (tkwin == NULL) {
            return TCL_ERROR;
        }
    }
    winPtr = (TkWindow *) tkwin;
 
    switch ((enum options) index) {
        case WIN_CELLS: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    Tk_Visual(tkwin)->map_entries);
            break;
        }
        case WIN_CHILDREN: {
            Tcl_Obj *strPtr;
 
            Tcl_ResetResult(interp);
            winPtr = winPtr->childList;
            for ( ; winPtr != NULL; winPtr = winPtr->nextPtr) {
                strPtr = Tcl_NewStringObj(winPtr->pathName, -1);
                Tcl_ListObjAppendElement(NULL,
                     Tcl_GetObjResult(interp), strPtr);
            }
            break;
        }
        case WIN_CLASS: {
            Tcl_ResetResult(interp);
            Tcl_SetStringObj(Tcl_GetObjResult(interp), Tk_Class(tkwin), -1);
            break;
        }
        case WIN_COLORMAPFULL: {
            Tcl_ResetResult(interp);
            Tcl_SetBooleanObj(Tcl_GetObjResult(interp),
                    TkpCmapStressed(tkwin, Tk_Colormap(tkwin)));
            break;
        }
        case WIN_DEPTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_Depth(tkwin));
            break;
        }
        case WIN_GEOMETRY: {
            Tcl_ResetResult(interp);
            sprintf(buf, "%dx%d+%d+%d", Tk_Width(tkwin), Tk_Height(tkwin),
                    Tk_X(tkwin), Tk_Y(tkwin));
            Tcl_SetStringObj(Tcl_GetObjResult(interp), buf, -1);
            break;
        }
        case WIN_HEIGHT: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_Height(tkwin));
            break;
        }
        case WIN_ID: {
            Tk_MakeWindowExist(tkwin);
            TkpPrintWindowId(buf, Tk_WindowId(tkwin));
            Tcl_ResetResult(interp);
            Tcl_SetStringObj(Tcl_GetObjResult(interp), buf, -1);
            break;
        }
        case WIN_ISMAPPED: {
            Tcl_ResetResult(interp);
            Tcl_SetBooleanObj(Tcl_GetObjResult(interp),
                    (int) Tk_IsMapped(tkwin));
            break;
        }
        case WIN_MANAGER: {
            Tcl_ResetResult(interp);
            if (winPtr->geomMgrPtr != NULL) {
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        winPtr->geomMgrPtr->name, -1);
            }
            break;
        }
        case WIN_NAME: {
            Tcl_ResetResult(interp);
            Tcl_SetStringObj(Tcl_GetObjResult(interp), Tk_Name(tkwin), -1);
            break;
        }
        case WIN_PARENT: {
            Tcl_ResetResult(interp);
            if (winPtr->parentPtr != NULL) {
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        winPtr->parentPtr->pathName, -1);
            }
            break;
        }
        case WIN_POINTERX: {
            useX = 1;
            useY = 0;
            goto pointerxy;
        }
        case WIN_POINTERY: {
            useX = 0;
            useY = 1;
            goto pointerxy;
        }
        case WIN_POINTERXY: {
            useX = 1;
            useY = 1;
 
            pointerxy:
            winPtr = GetToplevel(tkwin);
            if (winPtr == NULL) {
                x = -1;
                y = -1;
            } else {
                TkGetPointerCoords((Tk_Window) winPtr, &x, &y);
            }
            Tcl_ResetResult(interp);
            if (useX & useY) {
                sprintf(buf, "%d %d", x, y);
                Tcl_SetStringObj(Tcl_GetObjResult(interp), buf, -1);
            } else if (useX) {
                Tcl_SetIntObj(Tcl_GetObjResult(interp), x);
            } else {
                Tcl_SetIntObj(Tcl_GetObjResult(interp), y);
            }
            break;
        }
        case WIN_REQHEIGHT: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_ReqHeight(tkwin));
            break;
        }
        case WIN_REQWIDTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_ReqWidth(tkwin));
            break;
        }
        case WIN_ROOTX: {
            Tk_GetRootCoords(tkwin, &x, &y);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), x);
            break;
        }
        case WIN_ROOTY: {
            Tk_GetRootCoords(tkwin, &x, &y);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), y);
            break;
        }
        case WIN_SCREEN: {
            sprintf(buf, "%d", Tk_ScreenNumber(tkwin));
            Tcl_ResetResult(interp);
            Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
                    Tk_DisplayName(tkwin), ".", buf, NULL);
            break;
        }
        case WIN_SCREENCELLS: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    CellsOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENDEPTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    DefaultDepthOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENHEIGHT: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    HeightOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENWIDTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    WidthOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENMMHEIGHT: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    HeightMMOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENMMWIDTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp),
                    WidthMMOfScreen(Tk_Screen(tkwin)));
            break;
        }
        case WIN_SCREENVISUAL: {
            class = DefaultVisualOfScreen(Tk_Screen(tkwin))->class;
            goto visual;
        }
        case WIN_SERVER: {
            TkGetServerInfo(interp, tkwin);
            break;
        }
        case WIN_TOPLEVEL: {
            winPtr = GetToplevel(tkwin);
            if (winPtr != NULL) {
                Tcl_ResetResult(interp);
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        winPtr->pathName, -1);
            }
            break;
        }
        case WIN_VIEWABLE: {
            int viewable;
 
            viewable = 0;
            for ( ; ; winPtr = winPtr->parentPtr) {
                if ((winPtr == NULL) || !(winPtr->flags & TK_MAPPED)) {
                    break;
                }
                if (winPtr->flags & TK_TOP_LEVEL) {
                    viewable = 1;
                    break;
                }
            }
            Tcl_ResetResult(interp);
            Tcl_SetBooleanObj(Tcl_GetObjResult(interp), viewable);
            break;
        }
        case WIN_VISUAL: {
            class = Tk_Visual(tkwin)->class;
 
            visual:
            string = TkFindStateString(visualMap, class);
            if (string == NULL) {
                string = "unknown";
            }
            Tcl_ResetResult(interp);
            Tcl_SetStringObj(Tcl_GetObjResult(interp), string, -1);
            break;
        }
        case WIN_VISUALID: {
            Tcl_ResetResult(interp);
            sprintf(buf, "0x%x",
                    (unsigned int) XVisualIDFromVisual(Tk_Visual(tkwin)));
            Tcl_SetStringObj(Tcl_GetObjResult(interp), buf, -1);
            break;
        }
        case WIN_VROOTHEIGHT: {
            Tk_GetVRootGeometry(tkwin, &x, &y, &width, &height);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), height);
            break;
        }
        case WIN_VROOTWIDTH: {
            Tk_GetVRootGeometry(tkwin, &x, &y, &width, &height);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), width);
            break;
        }
        case WIN_VROOTX: {
            Tk_GetVRootGeometry(tkwin, &x, &y, &width, &height);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), x);
            break;
        }
        case WIN_VROOTY: {
            Tk_GetVRootGeometry(tkwin, &x, &y, &width, &height);
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), y);
            break;
        }
        case WIN_WIDTH: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_Width(tkwin));
            break;
        }
        case WIN_X: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_X(tkwin));
            break;
        }
        case WIN_Y: {
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), Tk_Y(tkwin));
            break;
        }
 
        /*
         * Uses -displayof.
         */
 
        case WIN_ATOM: {
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip != 3) {
                Tcl_WrongNumArgs(interp, 2, objv, "?-displayof window? name");
                return TCL_ERROR;
            }
            objv += skip;
            string = Tcl_GetStringFromObj(objv[2], NULL);
            Tcl_ResetResult(interp);
            Tcl_SetLongObj(Tcl_GetObjResult(interp),
                    (long) Tk_InternAtom(tkwin, string));
            break;
        }
        case WIN_ATOMNAME: {
            char *name;
            long id;
 
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip != 3) {
                Tcl_WrongNumArgs(interp, 2, objv, "?-displayof window? id");
                return TCL_ERROR;
            }
            objv += skip;
            if (Tcl_GetLongFromObj(interp, objv[2], &id) != TCL_OK) {
                return TCL_ERROR;
            }
            Tcl_ResetResult(interp);
            name = Tk_GetAtomName(tkwin, (Atom) id);
            if (strcmp(name, "?bad atom?") == 0) {
                string = Tcl_GetStringFromObj(objv[2], NULL);
                Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
                        "no atom exists with id \"", string, "\"", NULL);
                return TCL_ERROR;
            }
            Tcl_SetStringObj(Tcl_GetObjResult(interp), name, -1);
            break;
        }
        case WIN_CONTAINING: {
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip != 4) {
                Tcl_WrongNumArgs(interp, 2, objv,
                        "?-displayof window? rootX rootY");
                return TCL_ERROR;
            }
            objv += skip;
            string = Tcl_GetStringFromObj(objv[2], NULL);
            if (Tk_GetPixels(interp, tkwin, string, &x) != TCL_OK) {
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[3], NULL);
            if (Tk_GetPixels(interp, tkwin, string, &y) != TCL_OK) {
                return TCL_ERROR;
            }
            tkwin = Tk_CoordsToWindow(x, y, tkwin);
            if (tkwin != NULL) {
                Tcl_ResetResult(interp);
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        Tk_PathName(tkwin), -1);
            }
            break;
        }
        case WIN_INTERPS: {
            int result;
 
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip != 2) {
                Tcl_WrongNumArgs(interp, 2, objv, "?-displayof window?");
                return TCL_ERROR;
            }
            result = TkGetInterpNames(interp, tkwin);
            return result;
        }
        case WIN_PATHNAME: {
            int id;
 
            skip = TkGetDisplayOf(interp, objc - 2, objv + 2, &tkwin);
            if (skip < 0) {
                return TCL_ERROR;
            }
            if (objc - skip != 3) {
                Tcl_WrongNumArgs(interp, 2, objv, "?-displayof window? id");
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[2 + skip], NULL);
            if (TkpScanWindowId(interp, string, &id) != TCL_OK) {
                return TCL_ERROR;
            }
            winPtr = (TkWindow *)
                    Tk_IdToWindow(Tk_Display(tkwin), (Window) id);
            if ((winPtr == NULL) ||
                    (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr)) {
                Tcl_ResetResult(interp);
                Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
                        "window id \"", string,
                        "\" doesn't exist in this application", (char *) NULL);
                return TCL_ERROR;
            }
 
            /*
             * If the window is a utility window with no associated path
             * (such as a wrapper window or send communication window), just
             * return an empty string.
             */
 
            tkwin = (Tk_Window) winPtr;
            if (Tk_PathName(tkwin) != NULL) {
                Tcl_ResetResult(interp);
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        Tk_PathName(tkwin), -1);
            }
            break;
        }
 
        /*
         * objv[3] is window.
         */
 
        case WIN_EXISTS: {
            int alive;
 
            if (objc != 3) {
                Tcl_WrongNumArgs(interp, 2, objv, "window");
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[2], NULL);
            winPtr = (TkWindow *) Tk_NameToWindow(interp, string, tkwin);
            alive = 1;
            if ((winPtr == NULL) || (winPtr->flags & TK_ALREADY_DEAD)) {
                alive = 0;
            }
            Tcl_ResetResult(interp); /* clear any error msg */
            Tcl_SetBooleanObj(Tcl_GetObjResult(interp), alive);
            break;
        }
        case WIN_FPIXELS: {
            double mm, pixels;
 
            if (objc != 4) {
                Tcl_WrongNumArgs(interp, 2, objv, "window number");
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[2], NULL);
            tkwin = Tk_NameToWindow(interp, string, tkwin);
            if (tkwin == NULL) {
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[3], NULL);
            if (Tk_GetScreenMM(interp, tkwin, string, &mm) != TCL_OK) {
                return TCL_ERROR;
            }
            pixels = mm * WidthOfScreen(Tk_Screen(tkwin))
                / WidthMMOfScreen(Tk_Screen(tkwin));
            Tcl_ResetResult(interp);
            Tcl_SetDoubleObj(Tcl_GetObjResult(interp), pixels);
            break;
        }
        case WIN_PIXELS: {
            int pixels;
 
            if (objc != 4) {
                Tcl_WrongNumArgs(interp, 2, objv, "window number");
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[2], NULL);
            tkwin = Tk_NameToWindow(interp, string, tkwin);
            if (tkwin == NULL) {
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[3], NULL);
            if (Tk_GetPixels(interp, tkwin, string, &pixels) != TCL_OK) {
                return TCL_ERROR;
            }
            Tcl_ResetResult(interp);
            Tcl_SetIntObj(Tcl_GetObjResult(interp), pixels);
            break;
        }
        case WIN_RGB: {
            XColor *colorPtr;
 
            if (objc != 4) {
                Tcl_WrongNumArgs(interp, 2, objv, "window colorName");
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[2], NULL);
            tkwin = Tk_NameToWindow(interp, string, tkwin);
            if (tkwin == NULL) {
                return TCL_ERROR;
            }
            string = Tcl_GetStringFromObj(objv[3], NULL);
            colorPtr = Tk_GetColor(interp, tkwin, string);
            if (colorPtr == NULL) {
                return TCL_ERROR;
            }
            sprintf(buf, "%d %d %d", colorPtr->red, colorPtr->green,
                    colorPtr->blue);
            Tk_FreeColor(colorPtr);
            Tcl_ResetResult(interp);
            Tcl_SetStringObj(Tcl_GetObjResult(interp), buf, -1);
            break;
        }
        case WIN_VISUALSAVAILABLE: {
            XVisualInfo template, *visInfoPtr;
            int count, i;
            char visualIdString[16];
            int includeVisualId;
            Tcl_Obj *strPtr;
 
            if (objc == 3) {
                includeVisualId = 0;
            } else if ((objc == 4)
                    && (strcmp(Tcl_GetStringFromObj(objv[3], NULL),
                            "includeids") == 0)) {
                includeVisualId = 1;
            } else {
                Tcl_WrongNumArgs(interp, 2, objv, "window ?includeids?");
                return TCL_ERROR;
            }
 
            string = Tcl_GetStringFromObj(objv[2], NULL);
            tkwin = Tk_NameToWindow(interp, string, tkwin);
            if (tkwin == NULL) {
                return TCL_ERROR;
            }
 
            template.screen = Tk_ScreenNumber(tkwin);
            visInfoPtr = XGetVisualInfo(Tk_Display(tkwin), VisualScreenMask,
                    &template, &count);
            Tcl_ResetResult(interp);
            if (visInfoPtr == NULL) {
                Tcl_SetStringObj(Tcl_GetObjResult(interp),
                        "can't find any visuals for screen", -1);
                return TCL_ERROR;
            }
            for (i = 0; i < count; i++) {
                string = TkFindStateString(visualMap, visInfoPtr[i].class);
                if (string == NULL) {
                    strcpy(buf, "unknown");
                } else {
                    sprintf(buf, "%s %d", string, visInfoPtr[i].depth);
                }
                if (includeVisualId) {
                    sprintf(visualIdString, " 0x%x",
                            (unsigned int) visInfoPtr[i].visualid);
                    strcat(buf, visualIdString);
                }
                strPtr = Tcl_NewStringObj(buf, -1);
                Tcl_ListObjAppendElement(NULL, Tcl_GetObjResult(interp),
                        strPtr);
            }
            XFree((char *) visInfoPtr);
            break;
        }
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TkGetDisplayOf --
 *
 *      Parses a "-displayof window" option for various commands.  If
 *      present, the literal "-displayof" should be in objv[0] and the
 *      window name in objv[1].
 *
 * Results:
 *      The return value is 0 if the argument strings did not contain
 *      the "-displayof" option.  The return value is 2 if the
 *      argument strings contained both the "-displayof" option and
 *      a valid window name.  Otherwise, the return value is -1 if
 *      the window name was missing or did not specify a valid window.
 *
 *      If the return value was 2, *tkwinPtr is filled with the
 *      token for the window specified on the command line.  If the
 *      return value was -1, an error message is left in interp's
 *      result object.
 *
 * Side effects:
 *      None.
 *
 *----------------------------------------------------------------------
 */
 
int
TkGetDisplayOf(interp, objc, objv, tkwinPtr)
    Tcl_Interp *interp;         /* Interpreter for error reporting. */
    int objc;                   /* Number of arguments. */
    Tcl_Obj *CONST objv[];      /* Argument objects. If it is present,
                                 * "-displayof" should be in objv[0] and
                                 * objv[1] the name of a window. */
    Tk_Window *tkwinPtr;        /* On input, contains main window of
                                 * application associated with interp.  On
                                 * output, filled with window specified as
                                 * option to "-displayof" argument, or
                                 * unmodified if "-displayof" argument was not
                                 * present. */
{
    char *string;
    int length;
 
    if (objc < 1) {
        return 0;
    }
    string = Tcl_GetStringFromObj(objv[0], &length);
    if ((length >= 2) && (strncmp(string, "-displayof", (unsigned) length) == 0)) {
        if (objc < 2) {
            Tcl_SetStringObj(Tcl_GetObjResult(interp),
                    "value for \"-displayof\" missing", -1);
            return -1;
        }
        string = Tcl_GetStringFromObj(objv[1], NULL);
        *tkwinPtr = Tk_NameToWindow(interp, string, *tkwinPtr);
        if (*tkwinPtr == NULL) {
            return -1;
        }
        return 2;
    }
    return 0;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TkDeadAppCmd --
 *
 *      If an application has been deleted then all Tk commands will be
 *      re-bound to this procedure.
 *
 * Results:
 *      A standard Tcl error is reported to let the user know that
 *      the application is dead.
 *
 * Side effects:
 *      See the user documentation.
 *
 *----------------------------------------------------------------------
 */
 
        /* ARGSUSED */
int
TkDeadAppCmd(clientData, interp, argc, argv)
    ClientData clientData;      /* Dummy. */
    Tcl_Interp *interp;         /* Current interpreter. */
    int argc;                   /* Number of arguments. */
    char **argv;                /* Argument strings. */
{
    Tcl_AppendResult(interp, "can't invoke \"", argv[0],
            "\" command:  application has been destroyed", (char *) NULL);
    return TCL_ERROR;
}
 
/*
 *----------------------------------------------------------------------
 *
 * GetToplevel --
 *
 *      Retrieves the toplevel window which is the nearest ancestor of
 *      of the specified window.
 *
 * Results:
 *      Returns the toplevel window or NULL if the window has no
 *      ancestor which is a toplevel.
 *
 * Side effects:
 *      None.
 *
 *----------------------------------------------------------------------
 */
 
static TkWindow *
GetToplevel(tkwin)
    Tk_Window tkwin;            /* Window for which the toplevel should be
                                 * deterined. */
{
     TkWindow *winPtr = (TkWindow *) tkwin;
 
     while (!(winPtr->flags & TK_TOP_LEVEL)) {
         winPtr = winPtr->parentPtr;
         if (winPtr == NULL) {
             return NULL;
         }
     }
     return winPtr;
}
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[/] [or1k/] [tags/] [start/] [insight/] [tk/] [generic/] [tkCmds.c] - Blame information for rev 1780

Line No.	Rev	Author	Line
1	578	markom	`/*`
2			`* tkCmds.c --`
3			`*`
4			`* This file contains a collection of Tk-related Tcl commands`
5			`* that didn't fit in any particular file of the toolkit.`
6			`*`
7			`* Copyright (c) 1990-1994 The Regents of the University of California.`
8			`* Copyright (c) 1994-1996 Sun Microsystems, Inc.`
9			`* Copyright (c) 1998 by Scriptics Corporation.`
10			`*`
11			`* See the file "license.terms" for information on usage and redistribution`
12			`* of this file, and for a DISCLAIMER OF ALL WARRANTIES.`
13			`*`
14			`* RCS: @(#) $Id: tkCmds.c,v 1.1.1.1 2002-01-16 10:25:51 markom Exp $`
15			`*/`
16
17			`#include "tkPort.h"`
18			`#include "tkInt.h"`
19			`#include <errno.h>`
20
21			`/*`
22			`* Forward declarations for procedures defined later in this file:`
23			`*/`
24
25			`static TkWindow * GetToplevel _ANSI_ARGS_((Tk_Window tkwin));`
26			`static char * WaitVariableProc _ANSI_ARGS_((ClientData clientData,`
27			`Tcl_Interp interp, char name1, char *name2,`
28			`int flags));`
29			`static void WaitVisibilityProc _ANSI_ARGS_((ClientData clientData,`
30			`XEvent *eventPtr));`
31			`static void WaitWindowProc _ANSI_ARGS_((ClientData clientData,`
32			`XEvent *eventPtr));`
33
34			`/*`
35			`*----------------------------------------------------------------------`
36			`*`
37			`* Tk_BellObjCmd --`
38			`*`
39			`* This procedure is invoked to process the "bell" Tcl command.`
40			`* See the user documentation for details on what it does.`