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EXAMPLES
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IDRAW
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ERRHANDL.H
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C/C++ Source or Header
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1992-01-17
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64 lines
/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
// $Header: errhandler.h,v 1.8 89/10/09 14:48:01 linton Exp $
// declares class ErrHandler.
#ifndef errhandler_h
#define errhandler_h
#include <InterViews/reqerr.h>
// Declare imported types.
typedef void (NewHandler)();
class Editor;
// ErrHandler calls upon the Editor to save the current drawing if an
// X request error occurs.
class ErrHandler : public ReqErr {
public:
ErrHandler();
~ErrHandler();
void SetEditor(Editor*);
ReqErr* Install();
void Error();
protected:
ErrHandler* SetErrHandler(ErrHandler*);
void OutOfMemory();
friend void out_of_memory();
static ErrHandler* _err_handler; // used by out_of_memory
Editor* editor; // handles drawing and editing operations
ErrHandler* olderr; // used to restore previous handler
NewHandler* oldnew; // used to restore previous handler
};
#endif