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midas.c
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midas.c
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#include <stdio.h> /* For printf and so on. */
#include <setjmp.h> /* For setjmp and so on. */
#include <stdlib.h> /* for system() etc. */
#include <Mrm/MrmAppl.h> /* Motif Toolkit and MRM */
#include <X11/CoreP.h>
#include <X11/cursorfont.h>
#include <Xm/List.h>
#include <Xm/PushB.h>
#include <Xm/DialogS.h>
#include <Xm/Command.h>
#include <Xm/BulletinB.h>
#include "SGMLHyper.h"
#include "SGMLCompositeText.h"
#include "midaslist.h"
#include "midasoperand.h"
#include "midaswidget.h"
#include "midasshell.h"
#include "Tree.h"
#if !defined(__STDC__) && !defined(_NO_PROTO)
#define _NO_PROTO
#endif
#if defined(__STDC__) && defined(_NO_PROTO)
#undef _NO_PROTO
#endif
#ifdef __STDC__
# ifndef MISSING_STDARG_H
# include <stdarg.h>
# endif
# define Va_start(a,b) va_start(a,b)
#else
# include <varargs.h>
# define Va_start(a,b) va_start(a)
#endif
#ifndef VAX
#include <pwd.h>
#endif
#ifdef EDITRES
extern void _XEditResCheckMessages();
#endif
MidasOperand MidasGetIngot();
MidasOperand MidasGetCreateCallback();
void MidasLoadImage();
void MidasDispatchCommandCallback();
MidasOperand MidasEvaluateExpression();
#ifndef VAX
WidgetList DXmChildren();
int DXmNumChildren();
#endif
/*
* Global data
*/
Display *display; /* Display variable */
XtAppContext app_context; /* application context */
static Widget WidgetTree = NULL;
static Widget MidasMain; /* Root widget ID of main */
/* MRM fetch */
#define HASHTABLESIZE 137
static MidasWidget *HashTable[HASHTABLESIZE];
struct QueuedCommand {
Widget Widget;
char *Command;
struct QueuedCommand *Next;
};
typedef struct QueuedCommand QueuedCommand;
static struct {
QueuedCommand *Head;
QueuedCommand *Tail;
} CommandQueue;
struct MidasFile {
MrmHierarchy Hierarchy;
Widget DefaultParent;
};
typedef struct MidasFile MidasFile;
struct ConvertPair {
char *Name;
char Value;
};
typedef struct ConvertPair ConvertPair;
static int ExitResponse;
static ConvertPair ConvertBoolean[] = {{"true",1},
{"false",0},
{0,0}};
static XtConvertArgRec ConvertBooleanArg[] =
{{XtAddress,(XtPointer) ConvertBoolean,sizeof(XtPointer)}};
static ConvertPair ConvertPacking[] = {{"XmPACK_TIGHT" ,1},
{"XmPACK_COLUMN",2},
{"XmPACK_NONE" ,3},
{0,0}};
static XtConvertArgRec ConvertPackingArg[] =
{{XtAddress,(XtPointer) ConvertPacking,sizeof(XtPointer)}};
static XtConvertArgRec ConvertWidgetArg[] = {{XtBaseOffset,0,sizeof(Widget)}};
static List *MidasWidgetList;
static List *MidasFileList;
static List *MidasShellList;
static XtTranslations MidasTranslations;
Widget ActiveWidget;
XmAnyCallbackStruct *ActiveCallback;
Boolean IfState;
static char ProblemStrings[2000];
static char *ProblemPtr = ProblemStrings;
/* we need some protection here against exceeding the buffer size */
jmp_buf JmpEnv[100];
int NumJump = 0;
static Widget MidasFindName();
void *MidasConvertExpression();
static XtErrorMsgHandler OldHandler;
void MidasDummyHandler(){}
void MidasSuppressXtWarningMessages()
{
OldHandler = XtAppSetWarningMsgHandler(app_context,MidasDummyHandler);
}
void MidasReenableXtWarningMessages()
{
XtAppSetWarningMsgHandler(app_context,OldHandler);
}
static char *MidasClassName(w)
Widget w;
{
CoreClassPart *Class = (CoreClassPart *) XtClass(w);
return Class->class_name;
}
Widget MidasGetActiveWidget()
{
return ActiveWidget;
}
XmString MidasCharToString(C) /*---Convert a char * to an XmString */
char *C;
{
return XmStringCreateSimple(C);
}
#ifndef _NO_PROTO
void MidasError(char *fmt,...)
#else
/* VARARGS2*/
void MidasError(fmt,va_alist)
char *fmt;
va_dcl
#endif
{
va_list args;
Va_start(args, fmt);
vsprintf(ProblemPtr, fmt, args);
printf("Error: %s\n",ProblemPtr);
ProblemPtr += strlen(ProblemPtr);
*ProblemPtr++ = '\n';
va_end(args);
if (NumJump > 0) longjmp(JmpEnv[--NumJump],1);
*--ProblemPtr = '\0';
{
Widget w;
XmString string = XmStringCreateLtoR(ProblemStrings,
XmSTRING_DEFAULT_CHARSET);
int n = 0;
Arg args[10];
XtSetArg(args[n],XmNmessageString, string); n++;
w = MidasFindName("MidasErrorBox");
if (w != 0)
{
XtSetValues(w,args,n);
XtFree(string);
XtManageChild(w);
}
}
ProblemPtr = ProblemStrings;
};
char *MidasStringToChar(string) /*----Convert an XmString to a char */
XmString string;
{
XmStringContext context;
char *result;
XmStringCharSet charset;
XmStringDirection direction;
Boolean separator;
XmStringInitContext(&context,string);
XmStringGetNextSegment(context,&result,&charset,&direction,&separator);
XmStringFreeContext(context);
return result;
};
void MidasScanChildren(w,Rtn,Closure1,Closure2)
Widget w;
void (*Rtn)();
XtPointer Closure1;
XtPointer Closure2;
{
int n;
Widget *list;
if (XtIsSubclass(w,compositeWidgetClass))
{
list = DXmChildren(w);
n = DXmNumChildren(w);
for (; n > 0; n-- , list++) Rtn(*list,Closure1,Closure2);
}
if (SGMLIsCompositeText(w))
{
Arg arglist[10];
int nn = 0;
XtSetArg(arglist[nn],XtNchildren,&list); nn++;
XtSetArg(arglist[nn],XtNnumChildren,&n); nn++;
XtGetValues(w,arglist,nn);
for (; n > 0; n-- , list++) Rtn(*list,Closure1,Closure2);
}
if (XtIsWidget(w) && w->core.screen != 0)
{
list = w->core.popup_list;
n = w->core.num_popups;
if (list != NULL) for (; n > 0; n-- , list++) Rtn(*list,Closure1,Closure2);
}
}
void MidasScanAncestors(w,Rtn,Closure1)
Widget w;
void (*Rtn)();
XtPointer Closure1;
{
int n;
Widget *list;
Rtn(w,Closure1);
MidasScanChildren(w,MidasScanAncestors,(XtPointer) Rtn,Closure1);
}
static MrmHierarchy MidasOpenUidFile(name,parent)
char *name;
Widget parent;
{
MrmHierarchy hierarchy;
MidasFile *mfile;
ListItem *item;
MrmOpenHierarchy(1, &name, NULL, &hierarchy);
item = MidasAddItemToList(MidasFileList,name);
mfile = XtNew(MidasFile);
mfile->DefaultParent = parent;
mfile->Hierarchy = hierarchy;
item->Pointer = mfile;
return hierarchy;
}
void MidasWidgetBeingDestroyed(w,mw,reason)
Widget w;
MidasWidget *mw;
MidasWidget **reason;
{
/* remove from hash chain */
int hash = ((int) w) % HASHTABLESIZE;
MidasWidget *loop = HashTable[hash];
if (loop == mw) HashTable[hash] = mw->HashChain;
else
{
for ( ; loop->HashChain != mw; loop = loop->HashChain);
loop->HashChain = mw->HashChain;
}
if (mw->Map != NULL) XtDestroyWidget(mw->Map);
if (mw->IngotList != NULL) MidasDestroyIngots(mw);
if (mw->NameEntry != NULL) MidasRemoveItemFromList(MidasWidgetList,mw->NameEntry);
else XtFree((char *) mw);
}
MidasWidget *MidasWidgetToMW(w)
Widget w;
/*
* This routine returns a pointer to the MidasWidget structure for any widget.
*/
{
int hash = ((int) w) % HASHTABLESIZE;
MidasWidget *mw = HashTable[hash];
for ( ; mw != NULL; mw = mw->HashChain)
if (mw->Widget == w) return mw;
mw = XtNew(MidasWidget);
mw->Widget = w;
mw->ShowChildren = False;
mw->Map = NULL;
mw->IngotList = NULL;
mw->Parent = NULL;
mw->NameEntry = NULL;
mw->HashChain = HashTable[hash];
mw->Inited = FALSE;
HashTable[hash] = mw;
return mw;
}
static void MidasRegisterName(name,w)
char *name;
Widget w;
{
ListItem *item = MidasFindItemInList(MidasWidgetList,name);
if (item == NULL || ((MidasWidget *) item->Pointer)->Widget != w)
{
MidasWidget *mw = MidasWidgetToMW(w);
item = MidasAddItemToList(MidasWidgetList,name);
item->Pointer = mw;
mw->NameEntry = item;
}
}
static void MidasAddChildTree(Child,mw)
Widget Child;
MidasWidget *mw;
{
Widget w;
MidasWidget *newmw = MidasWidgetToMW(Child);
XmString label;
Arg arglist[3];
int n = 0;
if (WidgetTree == NULL) return;
label = MidasCharToString(XtName(Child));
if (mw != NULL) { XtSetArg(arglist[n],XtNtreeParent,mw->Map); n++; }
XtSetArg(arglist[n],XmNuserData,Child); n++;
XtSetArg(arglist[n],XmNlabelString,label); n++;
w = XmCreatePushButton(WidgetTree,"TreeLeaf",arglist,n);
XmStringFree(label);
XtManageChild(w);
newmw->Map = w;
}
static void MidasRemoveChildTree(Child)
Widget Child;
{
MidasWidget *mw = MidasWidgetToMW(Child);
if (mw->ShowChildren) MidasScanChildren(Child,MidasRemoveChildTree,NULL,NULL);
if (mw->Map != NULL)
{
XtDestroyWidget(mw->Map);
mw->Map = NULL;
}
mw->ShowChildren = FALSE;
}
static void MidasToggleChildrenTree(w)
Widget w;
{
MidasWidget *mw = MidasWidgetToMW(w);
if (WidgetTree == NULL) return;
mw->ShowChildren = !mw->ShowChildren;
if (mw->ShowChildren) MidasScanChildren(w,MidasAddChildTree,(XtPointer) mw,NULL);
else MidasScanChildren(w,MidasRemoveChildTree,NULL,NULL);
}
void MidasSetupWidget(w)
Widget w;
{
typedef struct _MR { char *Ingots; char *CreateCallback; } MidasResources;
MidasResources result;
MidasWidget *mw = MidasWidgetToMW(w);
MidasWidget *parent = MidasWidgetToMW(XtParent(w));
#define Offset(field) XtOffsetOf(MidasResources,field)
static XtResource resources[] =
{{"midasIngots" ,"MidasIngots" ,XtRString ,sizeof(char *),
Offset(Ingots) ,XtRImmediate ,NULL},
{"midasCreateCallback" ,"MidasCreateCallback" ,XtRString ,sizeof(char *),
Offset(CreateCallback) ,XtRImmediate ,NULL}};
#undef Offset
/*
* Check if widget already initialized
*/
if (mw->Inited) return;
mw->Inited = TRUE;
/*
* If the widgets parent has show children (in the widget tree)
* then make it so
*/
if (parent->ShowChildren) MidasAddChildTree(w,parent);
/*
* Add the special midas translation to all Widget children
*/
if (XtIsWidget(w)) XtOverrideTranslations(w,MidasTranslations);
XtAddCallback(w,XtNdestroyCallback,MidasWidgetBeingDestroyed,(XtPointer) mw);
XtGetApplicationResources(w,(XtPointer)&result,resources,XtNumber(resources),NULL,0);
if (result.Ingots != NULL) MidasSetupIngots(mw,result.Ingots);
if (result.CreateCallback != NULL)
{
MidasSetIngotString(w,"midasCreateCallback",result.CreateCallback);
MidasDispatchCommandCallback(w,result.CreateCallback,NULL);
}
}
Widget MidasCreateWidget(Parent,Class,Name)
Widget Parent;
WidgetClass Class;
char *Name;
{
Widget w = XtCreateManagedWidget(Name,Class,Parent,NULL,0);
MidasRegisterName(Name,w);
MidasSetupWidget(w);
return w;
}
Widget MidasFetch(name,parent)
char *name;
Widget parent;
{
MrmType class;
Widget actualParent, widget = 0;
MidasFile *mfile;
ListItem *i;
Boolean Dialog = MidasGetQualifier("DIALOG");
static LookingForParent = FALSE;
if (!LookingForParent)
{
LookingForParent = TRUE;
MidasGetQualifier("PARENT",&parent);
LookingForParent = FALSE;
}
for (i=MidasFileList->First; i != 0; i=i->Next)
{
mfile = i->Pointer;
if (parent==0) actualParent = mfile->DefaultParent;
else actualParent = parent;
if (Dialog)
{
Arg args[10];
int n = 0;
char *dialogName = strcat(strcpy(XtMalloc(strlen(name)+7),name),"Dialog");
Widget Dw = XmCreateDialogShell(actualParent,dialogName,NULL,0);
XtSetArg(args[n],XmNx, 0); n++;
XtSetArg(args[n],XmNy, 0); n++;
if (MrmFetchWidgetOverride(mfile->Hierarchy,name,Dw,NULL,
args,n,&widget,&class)
==MrmSUCCESS)
{
MidasRegisterName(name,widget);
MidasScanAncestors(Dw,MidasSetupWidget,NULL);
return widget;
}
XtDestroyWidget(Dw);
}
else
{
if (MrmFetchWidget(mfile->Hierarchy,name,actualParent,&widget,&class) == MrmSUCCESS)
{
MidasRegisterName(name,widget);
MidasScanAncestors(widget,MidasSetupWidget,NULL);
return widget;
}
}
}
return 0;
}
Pixmap MidasFetchIcon(name)
char *name;
{
Pixmap PixMap;
ListItem *i;
MidasSuppressXtWarningMessages();
for (i=MidasFileList->First; i != 0; i=i->Next)
{
MidasFile *mfile = i->Pointer;
Widget w = mfile->DefaultParent;
Screen *screen = XtScreen(w);
Pixel foreground = WhitePixelOfScreen(screen);
Pixel background = BlackPixelOfScreen(screen);
if (MrmFetchIconLiteral(mfile->Hierarchy,name,
screen, XtDisplay(w),
foreground, background, &PixMap)
== MrmSUCCESS)
{
MidasReenableXtWarningMessages();
/* printf("found icon at %x!!!\n",PixMap); */
return PixMap;
}
}
MidasReenableXtWarningMessages();
/* printf("failed to find icon!!!\n"); */
return 0;
}
static Widget MidasFindName(name)
char *name;
{
ListItem *item = MidasFindItemInList(MidasWidgetList,name);
if (item != 0)
{
MidasWidget *mw = item->Pointer;
return mw->Widget;
}
else
{
return MidasFetch(name,0);
}
}
void MidasFetchDispatchEvent()
{
XEvent event;
XtAppNextEvent(app_context,&event);
XtDispatchEvent(&event);
}
void MidasGetCallbacks(L,w)
List *L;
Widget w;
{
unsigned int numResource;
XtResource *Resource, *R;
WidgetClass Class = XtClass(w);
MidasEmptyList(L);
MidasAddItemToList(L,"midasCreateCallback");
XtGetResourceList(Class,&Resource,&numResource);
for (R=Resource; numResource-- > 0; R += 1)
if (strcmp(R->resource_type,"Callback") == 0)
{
ListItem *item = MidasAddItemToList(L,R->resource_name);
}
}
void MidasGetResources(L,w)
List *L;
Widget w;
{
unsigned int numResource;
XtResource *Resource, *R;
WidgetClass Class = XtClass(w);
MidasEmptyList(L);
XtGetResourceList(Class,&Resource,&numResource);
for (R=Resource; numResource-- > 0; R += 1)
if (strcmp(R->resource_type,"Callback") != 0)
{
ListItem *item = MidasAddItemToList(L,R->resource_name);
}
}
MidasOperand MidasGetAppResource(w,ResourceName)
Widget w;
char *ResourceName;
{
static XtResource resources =
{"userData","UserData",XtRString,sizeof(char *),0,XtRString,""};
char *result="";
MidasOperand Temp;
XtResource *rt = XtNew(XtResource);
*rt = resources;
rt->resource_name = XtNewString(ResourceName);
XtGetApplicationResources(w,(XtPointer) &result,rt,1,NULL,0);
Temp.Value.P = result;
Temp.Dynamic = FALSE;
Temp.Type = MString;
return Temp;
}
MidasOperand MidasGetValue(w,ResourceName)
Widget w;
char *ResourceName;
{
MidasOperand Temp;
char result[200], *ret;
unsigned int numResource;
int notfound = 1;
XtResource *Resource, *R;
WidgetClass Class = XtClass(w);
/* Special handling for midasCreateCallback resource
*/
if (strcmp(ResourceName,"midasCreateCallback") == 0) return MidasGetCreateCallback(w);
XtGetResourceList(Class,&Resource,&numResource);
for (R=Resource; numResource-- > 0; R += 1)
{
if (strcmp(R->resource_name,ResourceName) == 0)
{
notfound = 0;
if (strcmp(R->resource_type,XtRString) == 0)
{
char *ptr;
int n=0;
Arg args[10];
XtSetArg(args[n],ResourceName,&ptr); n++;
XtGetValues(w,args,n);
ret = XtNewString(ptr);
}
else if (strcmp(R->resource_type,"XmString") == 0)
{
String ptr;
int n=0;
Arg args[10];
XtSetArg(args[n],ResourceName, &ptr); n++;
XtGetValues(w,args,n);
if (ptr == 0) ret = XtNewString("");
else ret = MidasStringToChar(ptr);
}
else
{
XrmValue from,to;
if (strcmp(R->resource_type,"Callback") == 0)
{
int n = 0;
Arg args[10];
XtSetArg(args[n],ResourceName, &from.addr); n++;
XtGetValues(w,args,n);
}
else from.addr = ((char *) w) + R->resource_offset;
from.size = R->resource_size;
to.size = 200;
to.addr = result;
XtConvertAndStore(w,R->resource_type,&from,XtRString,&to);
if (to.size > 200)
{
ret = XtMalloc(to.size);
to.addr = ret;
XtConvertAndStore(w,R->resource_type,&from,XtRString,&to);
}
else ret = XtNewString(result);
}
}
}
XtFree((char *)Resource);
if (notfound) MidasError("Resource %s not found",ResourceName);
Temp.Value.P = ret;
Temp.Dynamic = TRUE;
Temp.Type = MString;
return Temp;
}
MidasShell *MidasGetShell(w)
Widget w;
{
MidasShell *ms;
ListItem *i;
for (; ; w = XtParent(w))
for (i = MidasShellList->First; i != 0; i = i->Next)
{
ms = i->Pointer;
if (ms->Widget == w) return ms;
}
}
void MidasDispatchAndTrapErrors(command)
char *command;
{
if (setjmp(JmpEnv[NumJump++]) == 0)
{
MidasDispatchCommand(command);
NumJump--;
}
else MidasError("Error interpreting command: %s\n from widget %s (class %s)"
,command,XtName(ActiveWidget),MidasClassName(ActiveWidget));
}
static void midas_command_proc(w,tag,reason)
Widget w;
char *tag;
XmCommandCallbackStruct *reason;
{
char *command = MidasStringToChar(reason->value);
Widget Stack = ActiveWidget;
Boolean StackIf = IfState;
ActiveWidget = w;
IfState = FALSE;
MidasDispatchAndTrapErrors(command);
ActiveWidget = Stack;
IfState = StackIf;
XtFree(command);
};
void MidasEchoCommand(command)
char *command;
{
XmString s = MidasCharToString(command);
Widget w = MidasFindName("MidasCommand");
if (w != 0) w = XmCommandGetChild(w,XmDIALOG_HISTORY_LIST);
if (w != 0)
{
XmListAddItem(w,s,0);
XmListSetBottomPos(w,0);
}
XmStringFree(s);
#ifdef debug
printf("Executing Command: %s\n",command);
#endif
}
void MidasDispatchCommandCallback(w,tag,reason)
Widget w;
char *tag;
XmAnyCallbackStruct *reason;
{
char buffer[2000];
char *p = tag , *q = buffer;
Widget Stack = ActiveWidget;
XmAnyCallbackStruct *CStack = reason;
ActiveWidget = w;
ActiveCallback = reason;
for (;; p++)
{
if (*p == '\n' || *p == ';')
{
*q = '\0';
if (*buffer != '\0')
{
MidasEchoCommand(buffer);
MidasDispatchAndTrapErrors(buffer);
}
q = buffer;
}
else if (*p == '\0')
{
*q = '\0';
if (*buffer != '\0')
{
MidasEchoCommand(buffer);
MidasDispatchAndTrapErrors(buffer);
}
break;
}
else if (*p == '%') MidasForceEvaluateExpression(&p,&q);
else *q++ = *p;
}
ActiveWidget = Stack;
ActiveCallback = CStack;
};
void MidasSendActionProc(w,event,params,num_params)
Widget w;
XEvent *event;
String *params;
Cardinal *num_params;
{
MidasDispatchCommandCallback(w,*params,NULL);
}
void MidasSpecialActionProc(w,event,params,num_params)
Widget w;
XButtonEvent *event;
String *params;
Cardinal *num_params;
{
/*
* Check to see if the event really came from some child gadget
* or insenstive widget
*/
Widget OldWidget = 0;
for ( ;w != OldWidget && XtIsComposite(w); )
{
Widget *list = DXmChildren(w);
int n = DXmNumChildren(w);
OldWidget = w;
for (; n>0; n--, list++)
{
if (!XtIsWidget(*list) || !XtIsSensitive(*list))
{
Dimension width, height;
Position x,y;
Arg arglist[4];
XtSetArg(arglist[0],XmNx,&x);
XtSetArg(arglist[1],XmNy,&y);
XtSetArg(arglist[2],XmNwidth ,&width);
XtSetArg(arglist[3],XmNheight,&height);
XtGetValues(*list,arglist,4);
if (event->x >= x && event->x < x+width &&
event->y >= y && event->y < y+height)
{
w = *list;
break;
}
}
}
}
MidasDispatchCommandCallback(w,*params,NULL);
}
void MidasQueueCommand(w,Command)
Widget w;
char *Command;
{
QueuedCommand *QC = XtNew(QueuedCommand);
QC->Widget = w;
QC->Command = XtNewString(Command);
QC->Next = 0;
if (CommandQueue.Head == 0) CommandQueue.Head = QC;
else CommandQueue.Tail->Next = QC;
CommandQueue.Tail = QC;
}
void MidasDispatchQueuedCommands()
{
QueuedCommand *QC, *Next;
for (QC = CommandQueue.Head; QC != 0; QC = Next)
{
MidasDispatchCommandCallback(QC->Widget, QC->Command, 0);
XtFree(QC->Command);
Next = QC->Next;
XtFree((char *)QC);
}
CommandQueue.Head = 0;
CommandQueue.Tail = 0;
}
void MidasIgnore(Command)
char *Command;
{
MidasDispatchCommandCallback(ActiveWidget,Command,NULL);
}
void MidasIf(Doit,Command)
Boolean Doit;
char *Command;
{
if (Doit) MidasDispatchCommandCallback(ActiveWidget,Command,NULL);
IfState = Doit;
}
void MidasElseIf(Doit,Command)
Boolean Doit;
char *Command;
{
if (!IfState) MidasIf(Doit,Command);
}
void MidasElse(Command)
char *Command;
{
if (!IfState) MidasDispatchCommandCallback(ActiveWidget,Command,NULL);
}
void MidasBeep(pcent,w)
int pcent;
Widget w;
{
if (w == NULL) w = ActiveWidget;
XBell(XtDisplay(w),pcent);
}
/*
* This procedure will ensure that, if a dialog window is being mapped,
* its contents become visible before returning. It is intended to be
* used just before a bout of computing that doesn't service the display.
* You should still call XmUpdateDisplay() at intervals during this
* computing if possible.
*
* The monitoring of window states is necessary because attempts to map
* the dialog are redirected to the window manager (if there is one) and
* this introduces a significant delay before the window is actually mapped
* and exposed. This code works under mwm, twm, uwm, and no-wm. It
* doesn't work (but doesn't hang) with olwm if the mainwindow is iconified.
*
* The argument to ForceDialog is any widget in the dialog (often it
* will be the BulletinBoard child of a DialogShell).
*/
void MidasForceDialog(w)
Widget w;
{
Widget diashell, topshell;
Window diawindow, topwindow;
Display *dpy;
XWindowAttributes xwa;
XEvent event;
XtAppContext cxt;
/* Locate the shell we are interested in. In a particular instance, you
* may know these shells already.
*/
for (diashell = w;
!XtIsShell(diashell);
diashell = XtParent(diashell))
;
/* Locate its primary window's shell (which may be the same) */
for (topshell = diashell;
!XtIsTopLevelShell(topshell);
topshell = XtParent(topshell))
;
if (XtIsRealized(diashell) && XtIsRealized(topshell)) {
dpy = XtDisplay(topshell);
diawindow = XtWindow(diashell);
topwindow = XtWindow(topshell);
cxt = XtWidgetToApplicationContext(diashell);
/* Wait for the dialog to be mapped. It's guaranteed to become so unless... */
while (XGetWindowAttributes(dpy, diawindow, &xwa),
xwa.map_state != IsViewable) {
/* ...if the primary is (or becomes) unviewable or unmapped, it's
probably iconified, and nothing will happen. */
if (XGetWindowAttributes(dpy, topwindow, &xwa),
xwa.map_state != IsViewable)
break;
/* At this stage, we are guaranteed there will be an event of some kind.
Beware; we are presumably in a callback, so this can recurse. */
XtAppNextEvent(cxt, &event);
XtDispatchEvent(&event);
}
}
/* The next XSync() will get an expose event if the dialog was unmapped. */
XmUpdateDisplay(topshell);
}
void MidasSetCursor(w,c)
Widget w;
int c;
{
Cursor C;
if (c!=0) C = XCreateFontCursor(XtDisplay(w),c);
else C = None;
XDefineCursor(XtDisplay(w),XtWindow(w),C);
XFlush(XtDisplay(w));
}
void MidasSetSensitive(w,Sensitive)
Widget w;
Boolean Sensitive;
{
XtSetSensitive(w,Sensitive);
}
char *MidasGetWidgetName(w)
Widget w;
{
char *parent, *thisone, *new;
int pl, tl;
MidasShell *ms = MidasGetShell(w);
thisone = XtName(w);
if (*thisone == '\0' || strchr(thisone,'-') != 0)
MidasError("Can not STORE RESOURCE for unnamed widget");
parent = XtName(ms->Widget);
pl = strlen(parent);
tl = strlen(thisone);
new = XtMalloc(pl+tl+2);