archie/tcl7.6/mac/tclMacPanic.c

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2024-05-27 16:40:40 +02:00
/*
* tclMacPanic.c --
*
* Source code for the "panic" library procedure used in "Simple Shell";
* other Mac applications will probably override this with a more robust
* application-specific panic procedure.
*
* Copyright (c) 1993-1994 Lockheed Missle & Space Company, AI Center
* Copyright (c) 1995-1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tclMacPanic.c 1.11 96/04/01 20:56:27
*/
#include <Events.h>
#include <Controls.h>
#include <Windows.h>
#include <TextEdit.h>
#include <Fonts.h>
#include <Dialogs.h>
#include <Icons.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "tclInt.h"
/*
* constants for panic dialog
*/
#define PANICHEIGHT 150 /* Height of dialog */
#define PANICWIDTH 350 /* Width of dialog */
#define PANIC_BUTTON_RECT {125, 260, 145, 335} /* Rect for button. */
#define PANIC_ICON_RECT {10, 20, 42, 52} /* Rect for icon. */
#define PANIC_TEXT_RECT {10, 65, 140, 330} /* Rect for text. */
#define ENTERCODE (0x03)
#define RETURNCODE (0x0D)
/*
* The panicProc variable contains a pointer to an application
* specific panic procedure.
*/
void (*panicProc) _ANSI_ARGS_(TCL_VARARGS(char *,format)) = NULL;
/*
*----------------------------------------------------------------------
*
* Tcl_SetPanicProc --
*
* Replace the default panic behavior with the specified functiion.
*
* Results:
* None.
*
* Side effects:
* Sets the panicProc variable.
*
*----------------------------------------------------------------------
*/
void
Tcl_SetPanicProc(proc)
void (*proc) _ANSI_ARGS_(TCL_VARARGS(char *,format));
{
panicProc = proc;
}
/*
*----------------------------------------------------------------------
*
* MacPanic --
*
* Displays panic info..
*
* Results:
* None.
*
* Side effects:
* Sets the panicProc variable.
*
*----------------------------------------------------------------------
*/
static void
MacPanic(msg)
char *msg;
{
WindowRef macWinPtr, foundWinPtr;
Rect macRect;
Rect buttonRect = PANIC_BUTTON_RECT;
Rect iconRect = PANIC_ICON_RECT;
Rect textRect = PANIC_TEXT_RECT;
ControlHandle okButtonHandle;
EventRecord event;
Handle stopIconHandle;
int part;
Boolean done = false;
/*
* Put up an alert without using the Resource Manager (there may
* be no resources to load). Use the Window and Control Managers instead.
* We want the window centered on the main monitor. The following
* should be tested with multiple monitors. Look and see if there is a way
* not using qd.screenBits.
*/
macRect.top = (qd.screenBits.bounds.top + qd.screenBits.bounds.bottom)
/ 2 - (PANICHEIGHT / 2);
macRect.bottom = (qd.screenBits.bounds.top + qd.screenBits.bounds.bottom)
/ 2 + (PANICHEIGHT / 2);
macRect.left = (qd.screenBits.bounds.left + qd.screenBits.bounds.right)
/ 2 - (PANICWIDTH / 2);
macRect.right = (qd.screenBits.bounds.left + qd.screenBits.bounds.right)
/ 2 + (PANICWIDTH / 2);
macWinPtr = NewWindow(NULL, &macRect, "\p", true, dBoxProc, (WindowRef) -1,
false, 0);
if (macWinPtr == NULL) {
goto exitNow;
}
okButtonHandle = NewControl(macWinPtr, &buttonRect, "\pOK", true,
0, 0, 1, pushButProc, 0);
if (okButtonHandle == NULL) {
CloseWindow(macWinPtr);
goto exitNow;
}
SelectWindow(macWinPtr);
SetCursor(&qd.arrow);
stopIconHandle = GetIcon(kStopIcon);
while (!done) {
if (WaitNextEvent(mDownMask | keyDownMask | updateMask,
&event, 0, NULL)) {
switch(event.what) {
case mouseDown:
part = FindWindow(event.where, &foundWinPtr);
if ((foundWinPtr != macWinPtr) || (part != inContent)) {
SysBeep(1);
} else {
SetPortWindowPort(macWinPtr);
GlobalToLocal(&event.where);
part = FindControl(event.where, macWinPtr,
&okButtonHandle);
if ((inButton == part) &&
(TrackControl(okButtonHandle,
event.where, NULL))) {
done = true;
}
}
break;
case keyDown:
switch (event.message & charCodeMask) {
case ENTERCODE:
case RETURNCODE:
HiliteControl(okButtonHandle, 1);
HiliteControl(okButtonHandle, 0);
done = true;
}
break;
case updateEvt:
SetPortWindowPort(macWinPtr);
TextFont(systemFont);
BeginUpdate(macWinPtr);
if (stopIconHandle != NULL) {
PlotIcon(&iconRect, stopIconHandle);
}
TextBox(msg, strlen(msg), &textRect, teFlushDefault);
DrawControls(macWinPtr);
EndUpdate(macWinPtr);
}
}
}
CloseWindow(macWinPtr);
exitNow:
#ifdef TCL_DEBUG
Debugger();
#else
abort();
#endif
}
/*
*----------------------------------------------------------------------
*
* panic --
*
* Print an error message and kill the process.
*
* Results:
* None.
*
* Side effects:
* The process dies, entering the debugger if possible.
*
*----------------------------------------------------------------------
*/
#pragma ignore_oldstyle on
void
panic(char * format, ...)
{
va_list varg;
char errorText[256];
if (panicProc != NULL) {
va_start(varg, format);
(void) (*panicProc)(format, varg);
va_end(varg);
} else {
va_start(varg, format);
vsprintf(errorText, format, varg);
va_end(varg);
MacPanic(errorText);
}
}
#pragma ignore_oldstyle reset